1 | /*===============================================================*\ |
---|
2 | | Project: RTEMS support for MPC83xx | |
---|
3 | +-----------------------------------------------------------------+ |
---|
4 | | Copyright (c) 2007 | |
---|
5 | | Embedded Brains GmbH | |
---|
6 | | Obere Lagerstr. 30 | |
---|
7 | | D-82178 Puchheim | |
---|
8 | | Germany | |
---|
9 | | rtems@embedded-brains.de | |
---|
10 | +-----------------------------------------------------------------+ |
---|
11 | | The license and distribution terms for this file may be | |
---|
12 | | found in the file LICENSE in this distribution or at | |
---|
13 | | | |
---|
14 | | http://www.rtems.org/license/LICENSE. | |
---|
15 | | | |
---|
16 | +-----------------------------------------------------------------+ |
---|
17 | | this file contains the MPC83xx TSEC networking driver | |
---|
18 | \*===============================================================*/ |
---|
19 | |
---|
20 | #include <stdlib.h> |
---|
21 | #include <bsp.h> |
---|
22 | #include <bsp/irq.h> |
---|
23 | #include <bsp/tsec.h> |
---|
24 | #include <rtems/error.h> |
---|
25 | #include <rtems/bspIo.h> |
---|
26 | #include <rtems/rtems_bsdnet.h> |
---|
27 | #include <rtems/rtems_mii_ioctl.h> |
---|
28 | #include <errno.h> |
---|
29 | |
---|
30 | #include <sys/param.h> |
---|
31 | #include <sys/socket.h> |
---|
32 | #include <sys/sockio.h> |
---|
33 | #include <sys/mbuf.h> |
---|
34 | #include <net/if.h> |
---|
35 | #include <net/if_arp.h> |
---|
36 | #include <netinet/in.h> |
---|
37 | #include <netinet/if_ether.h> |
---|
38 | #include <stdio.h> |
---|
39 | |
---|
40 | #define CLREVENT_IN_IRQ |
---|
41 | |
---|
42 | #define TSEC_WATCHDOG_TIMEOUT 5 /* check media every 5 seconds */ |
---|
43 | |
---|
44 | #ifdef DEBUG |
---|
45 | #define PF(fmt, ...) printk("%s: " fmt, __func__, ##__VA_ARGS__) |
---|
46 | #else |
---|
47 | #define PF(...) |
---|
48 | #endif |
---|
49 | |
---|
50 | /* |
---|
51 | * Device data |
---|
52 | */ |
---|
53 | struct tsec_struct { |
---|
54 | struct arpcom arpcom; |
---|
55 | int acceptBroadcast; |
---|
56 | |
---|
57 | /* |
---|
58 | * HW links: (filled from rtems_bsdnet_ifconfig |
---|
59 | */ |
---|
60 | volatile tsec_registers *reg_ptr; /* pointer to TSEC register block */ |
---|
61 | volatile tsec_registers *mdio_ptr; /* pointer to TSEC register block which is responsible for MDIO communication */ |
---|
62 | rtems_irq_number irq_num_tx; |
---|
63 | rtems_irq_number irq_num_rx; |
---|
64 | rtems_irq_number irq_num_err; |
---|
65 | |
---|
66 | /* |
---|
67 | * BD management |
---|
68 | */ |
---|
69 | int rxBdCount; |
---|
70 | int txBdCount; |
---|
71 | PQBufferDescriptor_t *Rx_Frst_BD; |
---|
72 | PQBufferDescriptor_t *Rx_Last_BD; |
---|
73 | PQBufferDescriptor_t *Rx_NxtUsed_BD; /* First BD, which is in Use */ |
---|
74 | PQBufferDescriptor_t *Rx_NxtFill_BD; /* BD to be filled next */ |
---|
75 | struct mbuf **Rx_mBuf_Ptr; /* Storage for mbufs */ |
---|
76 | |
---|
77 | PQBufferDescriptor_t *Tx_Frst_BD; |
---|
78 | PQBufferDescriptor_t *Tx_Last_BD; |
---|
79 | PQBufferDescriptor_t *Tx_NxtUsed_BD; /* First BD, which is in Use */ |
---|
80 | PQBufferDescriptor_t *Tx_NxtFill_BD; /* BD to be filled next */ |
---|
81 | struct mbuf **Tx_mBuf_Ptr; /* Storage for mbufs */ |
---|
82 | /* |
---|
83 | * Daemon IDs |
---|
84 | */ |
---|
85 | rtems_id rxDaemonTid; |
---|
86 | rtems_id txDaemonTid; |
---|
87 | |
---|
88 | /* |
---|
89 | * MDIO/Phy info |
---|
90 | */ |
---|
91 | struct rtems_mdio_info mdio_info; |
---|
92 | int phy_default; |
---|
93 | int media_state; /* (last detected) state of media */ |
---|
94 | /* |
---|
95 | * statistic counters Rx |
---|
96 | */ |
---|
97 | unsigned long rxInterrupts; |
---|
98 | unsigned long rxErrors; |
---|
99 | /* |
---|
100 | * statistic counters Tx |
---|
101 | */ |
---|
102 | unsigned long txInterrupts; |
---|
103 | unsigned long txErrors; |
---|
104 | }; |
---|
105 | |
---|
106 | static struct tsec_struct tsec_driver[TSEC_COUNT]; |
---|
107 | |
---|
108 | /* |
---|
109 | * default numbers for buffers |
---|
110 | */ |
---|
111 | #define RX_BUF_COUNT 64 |
---|
112 | #define TX_BUF_COUNT 64 |
---|
113 | |
---|
114 | /* |
---|
115 | * mask for all Tx interrupts |
---|
116 | */ |
---|
117 | #define IEVENT_TXALL (TSEC_IEVENT_GTSC \ |
---|
118 | | TSEC_IEVENT_TXC \ |
---|
119 | /*| TSEC_IEVENT_TXB*/ \ |
---|
120 | | TSEC_IEVENT_TXF ) |
---|
121 | |
---|
122 | /* |
---|
123 | * mask for all Rx interrupts |
---|
124 | */ |
---|
125 | #define IEVENT_RXALL (TSEC_IEVENT_RXC \ |
---|
126 | /* | TSEC_IEVENT_RXB */ \ |
---|
127 | | TSEC_IEVENT_GRSC \ |
---|
128 | | TSEC_IEVENT_RXF ) |
---|
129 | |
---|
130 | /* |
---|
131 | * mask for all Error interrupts |
---|
132 | */ |
---|
133 | #define IEVENT_ERRALL (TSEC_IEVENT_BABR \ |
---|
134 | | TSEC_IEVENT_BSY \ |
---|
135 | | TSEC_IEVENT_EBERR \ |
---|
136 | | TSEC_IEVENT_MSRO \ |
---|
137 | | TSEC_IEVENT_BABT \ |
---|
138 | | TSEC_IEVENT_TXE \ |
---|
139 | | TSEC_IEVENT_LC \ |
---|
140 | | TSEC_IEVENT_CRL_XDA \ |
---|
141 | | TSEC_IEVENT_XFUN ) |
---|
142 | |
---|
143 | #define TSEC_IMASK_SET(reg,mask,val) { \ |
---|
144 | rtems_interrupt_level level; \ |
---|
145 | \ |
---|
146 | rtems_interrupt_disable(level); \ |
---|
147 | (reg) = (((reg) & ~(mask)) | \ |
---|
148 | ((val) & (mask))); \ |
---|
149 | rtems_interrupt_enable(level); \ |
---|
150 | } |
---|
151 | |
---|
152 | #define TSEC_ALIGN_BUFFER(buf,align) \ |
---|
153 | ((void *)( (((uint32_t)(buf))+(align)-1) \ |
---|
154 | -(((uint32_t)(buf))+(align)-1)%align)) |
---|
155 | |
---|
156 | /* |
---|
157 | * RTEMS event used by interrupt handler to signal daemons. |
---|
158 | * This must *not* be the same event used by the TCP/IP task synchronization. |
---|
159 | */ |
---|
160 | #define INTERRUPT_EVENT RTEMS_EVENT_1 |
---|
161 | #define FATAL_INT_EVENT RTEMS_EVENT_3 |
---|
162 | |
---|
163 | /* |
---|
164 | * RTEMS event used to start transmit daemon. |
---|
165 | * This must not be the same as INTERRUPT_EVENT. |
---|
166 | */ |
---|
167 | #define START_TRANSMIT_EVENT RTEMS_EVENT_2 |
---|
168 | |
---|
169 | static int tsec_ioctl |
---|
170 | ( |
---|
171 | struct ifnet *ifp, /* interface information */ |
---|
172 | ioctl_command_t command, /* ioctl command code */ |
---|
173 | caddr_t data /* optional data */ |
---|
174 | ); |
---|
175 | |
---|
176 | /*=========================================================================*\ |
---|
177 | | Function: | |
---|
178 | \*-------------------------------------------------------------------------*/ |
---|
179 | static void tsec_hwinit |
---|
180 | ( |
---|
181 | /*-------------------------------------------------------------------------*\ |
---|
182 | | Purpose: | |
---|
183 | | initialize hardware register | |
---|
184 | +---------------------------------------------------------------------------+ |
---|
185 | | Input Parameters: | |
---|
186 | \*-------------------------------------------------------------------------*/ |
---|
187 | struct tsec_struct *sc /* control structure */ |
---|
188 | ) |
---|
189 | /*-------------------------------------------------------------------------*\ |
---|
190 | | Return Value: | |
---|
191 | | <none> | |
---|
192 | \*=========================================================================*/ |
---|
193 | { |
---|
194 | volatile tsec_registers *reg_ptr = sc->reg_ptr; /* pointer to TSEC registers*/ |
---|
195 | uint8_t *mac_addr; |
---|
196 | size_t i; |
---|
197 | |
---|
198 | /* Clear interrupt mask and all pending events */ |
---|
199 | reg_ptr->imask = 0; |
---|
200 | reg_ptr->ievent = 0xffffffff; |
---|
201 | |
---|
202 | /* |
---|
203 | * init ECNTL register |
---|
204 | * - clear statistics counters |
---|
205 | * - enable statistics |
---|
206 | * NOTE: do not clear bits set in BSP init function |
---|
207 | */ |
---|
208 | reg_ptr->ecntrl = ((reg_ptr->ecntrl & ~TSEC_ECNTRL_AUTOZ) |
---|
209 | | TSEC_ECNTRL_CLRCNT |
---|
210 | | TSEC_ECNTRL_STEN |
---|
211 | | TSEC_ECNTRL_R100M); |
---|
212 | |
---|
213 | /* |
---|
214 | * init DMA control register: |
---|
215 | * - enable snooping |
---|
216 | * - write BD status before interrupt request |
---|
217 | * - do not poll TxBD, but wait for TSTAT[THLT] to be written |
---|
218 | */ |
---|
219 | reg_ptr->dmactrl = (TSEC_DMACTL_TDSEN |
---|
220 | | TSEC_DMACTL_TBDSEN |
---|
221 | | TSEC_DMACTL_WWR |
---|
222 | | TSEC_DMACTL_WOP); |
---|
223 | |
---|
224 | /* |
---|
225 | * init Attribute register: |
---|
226 | * - enable read snooping for data and BD |
---|
227 | */ |
---|
228 | reg_ptr->attr = (TSEC_ATTR_RDSEN |
---|
229 | | TSEC_ATTR_RBDSEN); |
---|
230 | |
---|
231 | |
---|
232 | reg_ptr->mrblr = MCLBYTES-64; /* take care of buffer size lost |
---|
233 | * due to alignment */ |
---|
234 | |
---|
235 | /* |
---|
236 | * init EDIS register: disable all error reportings |
---|
237 | */ |
---|
238 | reg_ptr->edis = (TSEC_EDIS_BSYDIS | |
---|
239 | TSEC_EDIS_EBERRDIS | |
---|
240 | TSEC_EDIS_TXEDIS | |
---|
241 | TSEC_EDIS_LCDIS | |
---|
242 | TSEC_EDIS_CRLXDADIS | |
---|
243 | TSEC_EDIS_FUNDIS); |
---|
244 | /* |
---|
245 | * init minimum frame length register |
---|
246 | */ |
---|
247 | reg_ptr->minflr = 64; |
---|
248 | /* |
---|
249 | * init maximum frame length register |
---|
250 | */ |
---|
251 | reg_ptr->maxfrm = 1536; |
---|
252 | /* |
---|
253 | * define physical address of TBI |
---|
254 | */ |
---|
255 | reg_ptr->tbipa = 0x1e; |
---|
256 | /* |
---|
257 | * init transmit interrupt coalescing register |
---|
258 | */ |
---|
259 | reg_ptr->txic = (TSEC_TXIC_ICEN |
---|
260 | | TSEC_TXIC_ICFCT(2) |
---|
261 | | TSEC_TXIC_ICTT(32)); |
---|
262 | /* |
---|
263 | * init receive interrupt coalescing register |
---|
264 | */ |
---|
265 | #if 0 |
---|
266 | reg_ptr->rxic = (TSEC_RXIC_ICEN |
---|
267 | | TSEC_RXIC_ICFCT(2) |
---|
268 | | TSEC_RXIC_ICTT(32)); |
---|
269 | #else |
---|
270 | reg_ptr->rxic = 0; |
---|
271 | #endif |
---|
272 | /* |
---|
273 | * init MACCFG1 register |
---|
274 | */ |
---|
275 | reg_ptr->maccfg1 = (TSEC_MACCFG1_RX_FLOW |
---|
276 | | TSEC_MACCFG1_TX_FLOW); |
---|
277 | |
---|
278 | /* |
---|
279 | * init MACCFG2 register |
---|
280 | */ |
---|
281 | reg_ptr->maccfg2 = ((reg_ptr->maccfg2 & TSEC_MACCFG2_IFMODE_MSK) |
---|
282 | | TSEC_MACCFG2_IFMODE_BYT |
---|
283 | | TSEC_MACCFG2_PRELEN( 7) |
---|
284 | | TSEC_MACCFG2_FULLDUPLEX); |
---|
285 | |
---|
286 | /* |
---|
287 | * init station address register |
---|
288 | */ |
---|
289 | mac_addr = sc->arpcom.ac_enaddr; |
---|
290 | |
---|
291 | reg_ptr->macstnaddr[0] = ((mac_addr[5] << 24) |
---|
292 | | (mac_addr[4] << 16) |
---|
293 | | (mac_addr[3] << 8) |
---|
294 | | (mac_addr[2] << 0)); |
---|
295 | reg_ptr->macstnaddr[1] = ((mac_addr[1] << 24) |
---|
296 | | (mac_addr[0] << 16)); |
---|
297 | /* |
---|
298 | * clear hash filters |
---|
299 | */ |
---|
300 | for (i = 0; |
---|
301 | i < sizeof(reg_ptr->iaddr)/sizeof(reg_ptr->iaddr[0]); |
---|
302 | i++) { |
---|
303 | reg_ptr->iaddr[i] = 0; |
---|
304 | } |
---|
305 | for (i = 0; |
---|
306 | i < sizeof(reg_ptr->gaddr)/sizeof(reg_ptr->gaddr[0]); |
---|
307 | i++) { |
---|
308 | reg_ptr->gaddr[i] = 0; |
---|
309 | } |
---|
310 | } |
---|
311 | |
---|
312 | /***************************************************************************\ |
---|
313 | | MII Management access functions | |
---|
314 | \***************************************************************************/ |
---|
315 | |
---|
316 | /*=========================================================================*\ |
---|
317 | | Function: | |
---|
318 | \*-------------------------------------------------------------------------*/ |
---|
319 | static void tsec_mdio_init |
---|
320 | ( |
---|
321 | /*-------------------------------------------------------------------------*\ |
---|
322 | | Purpose: | |
---|
323 | | initialize the MIIM interface | |
---|
324 | +---------------------------------------------------------------------------+ |
---|
325 | | Input Parameters: | |
---|
326 | \*-------------------------------------------------------------------------*/ |
---|
327 | struct tsec_struct *sc /* control structure */ |
---|
328 | ) |
---|
329 | /*-------------------------------------------------------------------------*\ |
---|
330 | | Return Value: | |
---|
331 | | <none> | |
---|
332 | \*=========================================================================*/ |
---|
333 | { |
---|
334 | static const uint8_t divider [] = { 32, 32, 48, 64, 80, 112, 160, 224 }; |
---|
335 | size_t n = sizeof(divider) / sizeof(divider [0]); |
---|
336 | size_t i = 0; |
---|
337 | uint32_t mii_clock = UINT32_MAX; |
---|
338 | uint32_t tsec_system_clock = BSP_bus_frequency / 2; |
---|
339 | |
---|
340 | /* Set TSEC registers for MDIO communication */ |
---|
341 | |
---|
342 | /* |
---|
343 | * set clock divider |
---|
344 | */ |
---|
345 | for (i = 0; i < n && mii_clock > 2500000; ++i) { |
---|
346 | mii_clock = tsec_system_clock / divider [i]; |
---|
347 | } |
---|
348 | |
---|
349 | sc->mdio_ptr->miimcfg = i; |
---|
350 | } |
---|
351 | |
---|
352 | /*=========================================================================*\ |
---|
353 | | Function: | |
---|
354 | \*-------------------------------------------------------------------------*/ |
---|
355 | static int tsec_mdio_read |
---|
356 | ( |
---|
357 | /*-------------------------------------------------------------------------*\ |
---|
358 | | Purpose: | |
---|
359 | | read register of a phy | |
---|
360 | +---------------------------------------------------------------------------+ |
---|
361 | | Input Parameters: | |
---|
362 | \*-------------------------------------------------------------------------*/ |
---|
363 | int phy, /* PHY number to access or -1 */ |
---|
364 | void *uarg, /* unit argument */ |
---|
365 | unsigned reg, /* register address */ |
---|
366 | uint32_t *pval /* ptr to read buffer */ |
---|
367 | ) |
---|
368 | /*-------------------------------------------------------------------------*\ |
---|
369 | | Return Value: | |
---|
370 | | 0, if ok, else error | |
---|
371 | \*=========================================================================*/ |
---|
372 | { |
---|
373 | struct tsec_struct *sc = uarg;/* control structure */ |
---|
374 | |
---|
375 | /* pointer to TSEC registers */ |
---|
376 | volatile tsec_registers *reg_ptr = sc->mdio_ptr; |
---|
377 | PF("%u\n", reg); |
---|
378 | |
---|
379 | /* |
---|
380 | * make sure we work with a valid phy |
---|
381 | */ |
---|
382 | if (phy == -1) { |
---|
383 | phy = sc->phy_default; |
---|
384 | } |
---|
385 | if ( (phy < 0) || (phy > 31)) { |
---|
386 | /* |
---|
387 | * invalid phy number |
---|
388 | */ |
---|
389 | return EINVAL; |
---|
390 | } |
---|
391 | /* |
---|
392 | * set PHY/reg address |
---|
393 | */ |
---|
394 | reg_ptr->miimadd = (TSEC_MIIMADD_PHY(phy) |
---|
395 | | TSEC_MIIMADD_REGADDR(reg)); |
---|
396 | /* |
---|
397 | * start read cycle |
---|
398 | */ |
---|
399 | reg_ptr->miimcom = 0; |
---|
400 | reg_ptr->miimcom = TSEC_MIIMCOM_READ; |
---|
401 | |
---|
402 | /* |
---|
403 | * wait for cycle to terminate |
---|
404 | */ |
---|
405 | do { |
---|
406 | rtems_task_wake_after(2); |
---|
407 | } while (0 != (reg_ptr->miimind & TSEC_MIIMIND_BUSY)); |
---|
408 | reg_ptr->miimcom = 0; |
---|
409 | /* |
---|
410 | * fetch read data, if available |
---|
411 | */ |
---|
412 | if (pval != NULL) { |
---|
413 | *pval = reg_ptr->miimstat; |
---|
414 | } |
---|
415 | return 0; |
---|
416 | } |
---|
417 | |
---|
418 | /*=========================================================================*\ |
---|
419 | | Function: | |
---|
420 | \*-------------------------------------------------------------------------*/ |
---|
421 | static int tsec_mdio_write |
---|
422 | ( |
---|
423 | /*-------------------------------------------------------------------------*\ |
---|
424 | | Purpose: | |
---|
425 | | write register of a phy | |
---|
426 | +---------------------------------------------------------------------------+ |
---|
427 | | Input Parameters: | |
---|
428 | \*-------------------------------------------------------------------------*/ |
---|
429 | int phy, /* PHY number to access or -1 */ |
---|
430 | void *uarg, /* unit argument */ |
---|
431 | unsigned reg, /* register address */ |
---|
432 | uint32_t val /* write value */ |
---|
433 | ) |
---|
434 | /*-------------------------------------------------------------------------*\ |
---|
435 | | Return Value: | |
---|
436 | | 0, if ok, else error | |
---|
437 | \*=========================================================================*/ |
---|
438 | { |
---|
439 | struct tsec_struct *sc = uarg;/* control structure */ |
---|
440 | |
---|
441 | /* pointer to TSEC registers */ |
---|
442 | volatile tsec_registers *reg_ptr = sc->mdio_ptr; |
---|
443 | PF("%u\n", reg); |
---|
444 | |
---|
445 | /* |
---|
446 | * make sure we work with a valid phy |
---|
447 | */ |
---|
448 | if (phy == -1) { |
---|
449 | /* |
---|
450 | * set default phy number: 0 for TSEC1, 1 for TSEC2 |
---|
451 | */ |
---|
452 | phy = sc->phy_default; |
---|
453 | } |
---|
454 | if ( (phy < 0) || (phy > 31)) { |
---|
455 | /* |
---|
456 | * invalid phy number |
---|
457 | */ |
---|
458 | return EINVAL; |
---|
459 | } |
---|
460 | /* |
---|
461 | * set PHY/reg address |
---|
462 | */ |
---|
463 | reg_ptr->miimadd = (TSEC_MIIMADD_PHY(phy) |
---|
464 | | TSEC_MIIMADD_REGADDR(reg)); |
---|
465 | /* |
---|
466 | * start write cycle |
---|
467 | */ |
---|
468 | reg_ptr->miimcon = val; |
---|
469 | |
---|
470 | /* |
---|
471 | * wait for cycle to terminate |
---|
472 | */ |
---|
473 | do { |
---|
474 | rtems_task_wake_after(2); |
---|
475 | } while (0 != (reg_ptr->miimind & TSEC_MIIMIND_BUSY)); |
---|
476 | reg_ptr->miimcom = 0; |
---|
477 | return 0; |
---|
478 | } |
---|
479 | |
---|
480 | |
---|
481 | /***************************************************************************\ |
---|
482 | | RX receive functions | |
---|
483 | \***************************************************************************/ |
---|
484 | |
---|
485 | /*=========================================================================*\ |
---|
486 | | Function: | |
---|
487 | \*-------------------------------------------------------------------------*/ |
---|
488 | static rtems_event_set tsec_rx_wait_for_events |
---|
489 | ( |
---|
490 | /*-------------------------------------------------------------------------*\ |
---|
491 | | Purpose: | |
---|
492 | | handle all rx events | |
---|
493 | +---------------------------------------------------------------------------+ |
---|
494 | | Input Parameters: | |
---|
495 | \*-------------------------------------------------------------------------*/ |
---|
496 | struct tsec_struct *sc, /* control structure */ |
---|
497 | rtems_event_set event_mask /* events to wait for */ |
---|
498 | ) |
---|
499 | /*-------------------------------------------------------------------------*\ |
---|
500 | | Return Value: | |
---|
501 | | event set received | |
---|
502 | \*=========================================================================*/ |
---|
503 | { |
---|
504 | rtems_event_set events; /* events received */ |
---|
505 | /* |
---|
506 | * enable Rx interrupts, make sure this is not interrupted :-) |
---|
507 | */ |
---|
508 | TSEC_IMASK_SET(sc->reg_ptr->imask,IEVENT_RXALL,~0); |
---|
509 | |
---|
510 | /* |
---|
511 | * wait for events to come in |
---|
512 | */ |
---|
513 | rtems_bsdnet_event_receive(event_mask, |
---|
514 | RTEMS_EVENT_ANY | RTEMS_WAIT, |
---|
515 | RTEMS_NO_TIMEOUT, |
---|
516 | &events); |
---|
517 | return events; |
---|
518 | } |
---|
519 | |
---|
520 | /*=========================================================================*\ |
---|
521 | | Function: | |
---|
522 | \*-------------------------------------------------------------------------*/ |
---|
523 | static void mpc83xx_rxbd_alloc_clear |
---|
524 | ( |
---|
525 | /*-------------------------------------------------------------------------*\ |
---|
526 | | Purpose: | |
---|
527 | | allocate space for Rx BDs, clear them | |
---|
528 | +---------------------------------------------------------------------------+ |
---|
529 | | Input Parameters: | |
---|
530 | \*-------------------------------------------------------------------------*/ |
---|
531 | struct tsec_struct *sc /* control structure */ |
---|
532 | ) |
---|
533 | /*-------------------------------------------------------------------------*\ |
---|
534 | | Return Value: | |
---|
535 | | <none> | |
---|
536 | \*=========================================================================*/ |
---|
537 | { |
---|
538 | char *alloc_ptr; |
---|
539 | PQBufferDescriptor_t *BD_ptr; |
---|
540 | /* |
---|
541 | * allocate proper space for Rx BDs |
---|
542 | */ |
---|
543 | alloc_ptr = calloc((sc->rxBdCount+1),sizeof(PQBufferDescriptor_t)); |
---|
544 | if (alloc_ptr == NULL) { |
---|
545 | rtems_panic("TSEC: cannot allocate space for Rx BDs"); |
---|
546 | } |
---|
547 | alloc_ptr = (void *)((uint32_t )((alloc_ptr + (sizeof(PQBufferDescriptor_t)-1))) |
---|
548 | & ~(sizeof(PQBufferDescriptor_t)-1)); |
---|
549 | /* |
---|
550 | * store pointers to certain positions in BD chain |
---|
551 | */ |
---|
552 | sc->Rx_Last_BD = ((PQBufferDescriptor_t *)alloc_ptr)+sc->rxBdCount-1; |
---|
553 | sc->Rx_Frst_BD = (PQBufferDescriptor_t *)alloc_ptr; |
---|
554 | sc->Rx_NxtUsed_BD = sc->Rx_Frst_BD; |
---|
555 | sc->Rx_NxtFill_BD = sc->Rx_Frst_BD; |
---|
556 | |
---|
557 | /* |
---|
558 | * clear all BDs |
---|
559 | */ |
---|
560 | for (BD_ptr = sc->Rx_Frst_BD; |
---|
561 | BD_ptr <= sc->Rx_Last_BD; |
---|
562 | BD_ptr++) { |
---|
563 | BD_ptr->status = 0; |
---|
564 | } |
---|
565 | /* |
---|
566 | * Init BD chain registers |
---|
567 | */ |
---|
568 | sc->reg_ptr->rbase = (uint32_t) (sc->Rx_Frst_BD); |
---|
569 | } |
---|
570 | |
---|
571 | /*=========================================================================*\ |
---|
572 | | Function: | |
---|
573 | \*-------------------------------------------------------------------------*/ |
---|
574 | static void tsec_receive_packets |
---|
575 | ( |
---|
576 | /*-------------------------------------------------------------------------*\ |
---|
577 | | Purpose: | |
---|
578 | | process any received packets | |
---|
579 | +---------------------------------------------------------------------------+ |
---|
580 | | Input Parameters: | |
---|
581 | \*-------------------------------------------------------------------------*/ |
---|
582 | struct tsec_struct *sc /* control structure */ |
---|
583 | ) |
---|
584 | /*-------------------------------------------------------------------------*\ |
---|
585 | | Return Value: | |
---|
586 | | <none> | |
---|
587 | \*=========================================================================*/ |
---|
588 | { |
---|
589 | PQBufferDescriptor_t *BD_ptr; |
---|
590 | struct mbuf *m,*n; |
---|
591 | bool finished = false; |
---|
592 | uint16_t status; |
---|
593 | struct ether_header *eh; |
---|
594 | int bd_idx; |
---|
595 | |
---|
596 | BD_ptr = sc->Rx_NxtUsed_BD; |
---|
597 | |
---|
598 | while ((0 == ((status = BD_ptr->status) & BD_EMPTY)) && |
---|
599 | !finished && |
---|
600 | (BD_ptr->buffer != NULL)) { |
---|
601 | /* |
---|
602 | * get mbuf associated with BD |
---|
603 | */ |
---|
604 | bd_idx = BD_ptr - sc->Rx_Frst_BD; |
---|
605 | m = sc->Rx_mBuf_Ptr[bd_idx]; |
---|
606 | sc->Rx_mBuf_Ptr[bd_idx] = NULL; |
---|
607 | |
---|
608 | /* |
---|
609 | * Check that packet is valid |
---|
610 | */ |
---|
611 | if ((status & (BD_LAST | |
---|
612 | BD_FIRST_IN_FRAME | |
---|
613 | BD_LONG | |
---|
614 | BD_NONALIGNED | |
---|
615 | BD_CRC_ERROR | |
---|
616 | BD_OVERRUN )) |
---|
617 | == (BD_LAST | |
---|
618 | BD_FIRST_IN_FRAME ) ) { |
---|
619 | /* |
---|
620 | * send mbuf of this buffer to ether_input() |
---|
621 | */ |
---|
622 | m->m_len = m->m_pkthdr.len = (BD_ptr->length |
---|
623 | - sizeof(uint32_t) |
---|
624 | - sizeof(struct ether_header)); |
---|
625 | eh = mtod(m, struct ether_header *); |
---|
626 | m->m_data += sizeof(struct ether_header); |
---|
627 | PF("RX[%08x] (%i)\n", BD_ptr, m->m_len); |
---|
628 | ether_input(&sc->arpcom.ac_if,eh,m); |
---|
629 | } |
---|
630 | else { |
---|
631 | /* |
---|
632 | * throw away mbuf |
---|
633 | */ |
---|
634 | MFREE(m,n); |
---|
635 | } |
---|
636 | /* |
---|
637 | * mark buffer as non-allocated (for refill) |
---|
638 | */ |
---|
639 | BD_ptr->buffer = NULL; |
---|
640 | /* |
---|
641 | * Advance BD_ptr to next BD |
---|
642 | */ |
---|
643 | BD_ptr = ((BD_ptr == sc->Rx_Last_BD) |
---|
644 | ? sc->Rx_Frst_BD |
---|
645 | : BD_ptr+1); |
---|
646 | } |
---|
647 | sc->Rx_NxtUsed_BD = BD_ptr; |
---|
648 | } |
---|
649 | |
---|
650 | /*=========================================================================*\ |
---|
651 | | Function: | |
---|
652 | \*-------------------------------------------------------------------------*/ |
---|
653 | static void tsec_refill_rxbds |
---|
654 | ( |
---|
655 | /*-------------------------------------------------------------------------*\ |
---|
656 | | Purpose: | |
---|
657 | | link new buffers to rx BDs | |
---|
658 | +---------------------------------------------------------------------------+ |
---|
659 | | Input Parameters: | |
---|
660 | \*-------------------------------------------------------------------------*/ |
---|
661 | struct tsec_struct *sc /* control structure */ |
---|
662 | ) |
---|
663 | /*-------------------------------------------------------------------------*\ |
---|
664 | | Return Value: | |
---|
665 | | <none> | |
---|
666 | \*=========================================================================*/ |
---|
667 | { |
---|
668 | PQBufferDescriptor_t *BD_ptr; |
---|
669 | struct mbuf *m,*n; |
---|
670 | bool finished = false; |
---|
671 | int bd_idx; |
---|
672 | |
---|
673 | BD_ptr = sc->Rx_NxtFill_BD; |
---|
674 | while ((BD_ptr->buffer == NULL) && |
---|
675 | !finished) { |
---|
676 | /* |
---|
677 | * get new mbuf and attach a cluster |
---|
678 | */ |
---|
679 | MGETHDR(m,M_DONTWAIT,MT_DATA); |
---|
680 | if (m != NULL) { |
---|
681 | MCLGET(m,M_DONTWAIT); |
---|
682 | if ((m->m_flags & M_EXT) == 0) { |
---|
683 | MFREE(m,n); |
---|
684 | m = NULL; |
---|
685 | } |
---|
686 | } |
---|
687 | if (m == NULL) { |
---|
688 | finished = true; |
---|
689 | } |
---|
690 | else { |
---|
691 | bd_idx = BD_ptr - sc->Rx_Frst_BD; |
---|
692 | sc->Rx_mBuf_Ptr[bd_idx] = m; |
---|
693 | |
---|
694 | m->m_pkthdr.rcvif= &sc->arpcom.ac_if; |
---|
695 | m->m_data = TSEC_ALIGN_BUFFER(m->m_ext.ext_buf,64); |
---|
696 | BD_ptr->buffer = m->m_data; |
---|
697 | BD_ptr->length = 0; |
---|
698 | BD_ptr->status = (BD_EMPTY |
---|
699 | | BD_INTERRUPT |
---|
700 | | ((BD_ptr == sc->Rx_Last_BD) |
---|
701 | ? BD_WRAP |
---|
702 | : 0)); |
---|
703 | /* |
---|
704 | * Advance BD_ptr to next BD |
---|
705 | */ |
---|
706 | BD_ptr = ((BD_ptr == sc->Rx_Last_BD) |
---|
707 | ? sc->Rx_Frst_BD |
---|
708 | : BD_ptr+1); |
---|
709 | } |
---|
710 | } |
---|
711 | sc->Rx_NxtFill_BD = BD_ptr; |
---|
712 | } |
---|
713 | |
---|
714 | /*=========================================================================*\ |
---|
715 | | Function: | |
---|
716 | \*-------------------------------------------------------------------------*/ |
---|
717 | static void tsec_rxDaemon |
---|
718 | ( |
---|
719 | /*-------------------------------------------------------------------------*\ |
---|
720 | | Purpose: | |
---|
721 | | handle all rx buffers and events | |
---|
722 | +---------------------------------------------------------------------------+ |
---|
723 | | Input Parameters: | |
---|
724 | \*-------------------------------------------------------------------------*/ |
---|
725 | void * arg /* argument, is sc structure ptr */ |
---|
726 | ) |
---|
727 | /*-------------------------------------------------------------------------*\ |
---|
728 | | Return Value: | |
---|
729 | | <none> | |
---|
730 | \*=========================================================================*/ |
---|
731 | { |
---|
732 | struct tsec_struct *sc = |
---|
733 | (struct tsec_struct *)arg; |
---|
734 | bool finished = false; |
---|
735 | rtems_event_set events; |
---|
736 | #if !defined(CLREVENT_IN_IRQ) |
---|
737 | uint32_t irq_events; |
---|
738 | #endif |
---|
739 | /* |
---|
740 | * enable Rx in MACCFG1 register |
---|
741 | */ |
---|
742 | sc->reg_ptr->maccfg1 |= TSEC_MACCFG1_RXEN; |
---|
743 | while (!finished) { |
---|
744 | /* |
---|
745 | * fetch MBufs, associate them to RxBDs |
---|
746 | */ |
---|
747 | tsec_refill_rxbds(sc); |
---|
748 | /* |
---|
749 | * wait for events to come in |
---|
750 | */ |
---|
751 | events = tsec_rx_wait_for_events(sc,INTERRUPT_EVENT); |
---|
752 | #if !defined(CLREVENT_IN_IRQ) |
---|
753 | /* |
---|
754 | * clear any pending RX events |
---|
755 | */ |
---|
756 | irq_events = sc->reg_ptr->ievent & IEVENT_RXALL; |
---|
757 | sc->reg_ptr->ievent = irq_events; |
---|
758 | #endif |
---|
759 | /* |
---|
760 | * fetch any completed buffers/packets received |
---|
761 | * and stuff them into the TCP/IP Stack |
---|
762 | */ |
---|
763 | tsec_receive_packets(sc); |
---|
764 | } |
---|
765 | /* |
---|
766 | * disable Rx in MACCFG1 register |
---|
767 | */ |
---|
768 | sc->reg_ptr->maccfg1 &= ~TSEC_MACCFG1_RXEN; |
---|
769 | /* |
---|
770 | * terminate daemon |
---|
771 | */ |
---|
772 | sc->rxDaemonTid = 0; |
---|
773 | rtems_task_delete(RTEMS_SELF); |
---|
774 | } |
---|
775 | |
---|
776 | /***************************************************************************\ |
---|
777 | | TX Transmit functions | |
---|
778 | \***************************************************************************/ |
---|
779 | |
---|
780 | /*=========================================================================*\ |
---|
781 | | Function: | |
---|
782 | \*-------------------------------------------------------------------------*/ |
---|
783 | static void mpc83xx_txbd_alloc_clear |
---|
784 | ( |
---|
785 | /*-------------------------------------------------------------------------*\ |
---|
786 | | Purpose: | |
---|
787 | | allocate space for Tx BDs, clear them | |
---|
788 | +---------------------------------------------------------------------------+ |
---|
789 | | Input Parameters: | |
---|
790 | \*-------------------------------------------------------------------------*/ |
---|
791 | struct tsec_struct *sc /* control structure */ |
---|
792 | ) |
---|
793 | /*-------------------------------------------------------------------------*\ |
---|
794 | | Return Value: | |
---|
795 | | <none> | |
---|
796 | \*=========================================================================*/ |
---|
797 | { |
---|
798 | char *alloc_ptr; |
---|
799 | PQBufferDescriptor_t *BD_ptr; |
---|
800 | /* |
---|
801 | * allocate proper space for Tx BDs |
---|
802 | */ |
---|
803 | alloc_ptr = calloc((sc->txBdCount+1),sizeof(PQBufferDescriptor_t)); |
---|
804 | if (alloc_ptr == NULL) { |
---|
805 | rtems_panic("TSEC: cannot allocate space for Tx BDs"); |
---|
806 | } |
---|
807 | alloc_ptr = (void *)((uint32_t )((alloc_ptr + (sizeof(PQBufferDescriptor_t)-1))) |
---|
808 | & ~(sizeof(PQBufferDescriptor_t)-1)); |
---|
809 | /* |
---|
810 | * store pointers to certain positions in BD chain |
---|
811 | */ |
---|
812 | sc->Tx_Last_BD = ((PQBufferDescriptor_t *)alloc_ptr)+sc->txBdCount-1; |
---|
813 | sc->Tx_Frst_BD = (PQBufferDescriptor_t *)alloc_ptr; |
---|
814 | sc->Tx_NxtUsed_BD = sc->Tx_Frst_BD; |
---|
815 | sc->Tx_NxtFill_BD = sc->Tx_Frst_BD; |
---|
816 | |
---|
817 | /* |
---|
818 | * clear all BDs |
---|
819 | */ |
---|
820 | for (BD_ptr = sc->Tx_Frst_BD; |
---|
821 | BD_ptr <= sc->Tx_Last_BD; |
---|
822 | BD_ptr++) { |
---|
823 | BD_ptr->status = 0; |
---|
824 | } |
---|
825 | /* |
---|
826 | * Init BD chain registers |
---|
827 | */ |
---|
828 | sc->reg_ptr->tbase = (uint32_t)(sc->Tx_Frst_BD); |
---|
829 | } |
---|
830 | |
---|
831 | /*=========================================================================*\ |
---|
832 | | Function: | |
---|
833 | \*-------------------------------------------------------------------------*/ |
---|
834 | static void tsec_tx_start |
---|
835 | ( |
---|
836 | /*-------------------------------------------------------------------------*\ |
---|
837 | | Purpose: | |
---|
838 | | start transmission | |
---|
839 | +---------------------------------------------------------------------------+ |
---|
840 | | Input Parameters: | |
---|
841 | \*-------------------------------------------------------------------------*/ |
---|
842 | struct ifnet *ifp |
---|
843 | ) |
---|
844 | /*-------------------------------------------------------------------------*\ |
---|
845 | | Return Value: | |
---|
846 | | <none> | |
---|
847 | \*=========================================================================*/ |
---|
848 | { |
---|
849 | struct tsec_struct *sc = ifp->if_softc; |
---|
850 | |
---|
851 | ifp->if_flags |= IFF_OACTIVE; |
---|
852 | |
---|
853 | rtems_bsdnet_event_send (sc->txDaemonTid, START_TRANSMIT_EVENT); |
---|
854 | } |
---|
855 | |
---|
856 | /*=========================================================================*\ |
---|
857 | | Function: | |
---|
858 | \*-------------------------------------------------------------------------*/ |
---|
859 | static rtems_event_set tsec_tx_wait_for_events |
---|
860 | ( |
---|
861 | /*-------------------------------------------------------------------------*\ |
---|
862 | | Purpose: | |
---|
863 | | handle all tx events | |
---|
864 | +---------------------------------------------------------------------------+ |
---|
865 | | Input Parameters: | |
---|
866 | \*-------------------------------------------------------------------------*/ |
---|
867 | struct tsec_struct *sc, /* control structure */ |
---|
868 | rtems_event_set event_mask /* events to wait for */ |
---|
869 | ) |
---|
870 | /*-------------------------------------------------------------------------*\ |
---|
871 | | Return Value: | |
---|
872 | | event set received | |
---|
873 | \*=========================================================================*/ |
---|
874 | { |
---|
875 | rtems_event_set events; /* events received */ |
---|
876 | /* |
---|
877 | * enable Tx interrupts, make sure this is not interrupted :-) |
---|
878 | */ |
---|
879 | TSEC_IMASK_SET(sc->reg_ptr->imask,IEVENT_TXALL,~0); |
---|
880 | |
---|
881 | /* |
---|
882 | * wait for events to come in |
---|
883 | */ |
---|
884 | rtems_bsdnet_event_receive(event_mask, |
---|
885 | RTEMS_EVENT_ANY | RTEMS_WAIT, |
---|
886 | RTEMS_NO_TIMEOUT, |
---|
887 | &events); |
---|
888 | return events; |
---|
889 | } |
---|
890 | |
---|
891 | /*=========================================================================*\ |
---|
892 | | Function: | |
---|
893 | \*-------------------------------------------------------------------------*/ |
---|
894 | static void tsec_tx_retire |
---|
895 | ( |
---|
896 | /*-------------------------------------------------------------------------*\ |
---|
897 | | Purpose: | |
---|
898 | | handle all tx events | |
---|
899 | +---------------------------------------------------------------------------+ |
---|
900 | | Input Parameters: | |
---|
901 | \*-------------------------------------------------------------------------*/ |
---|
902 | struct tsec_struct *sc /* control structure */ |
---|
903 | ) |
---|
904 | /*-------------------------------------------------------------------------*\ |
---|
905 | | Return Value: | |
---|
906 | | <none> | |
---|
907 | \*=========================================================================*/ |
---|
908 | { |
---|
909 | PQBufferDescriptor_t *RetBD; |
---|
910 | RetBD = sc->Tx_NxtUsed_BD; |
---|
911 | int bd_idx; |
---|
912 | struct mbuf *m,*n; |
---|
913 | /* |
---|
914 | * check next BDs to be empty |
---|
915 | */ |
---|
916 | while ((RetBD->buffer != NULL) /* BD is filled */ |
---|
917 | && (0 == (RetBD->status & BD_READY ))) {/* BD no longer ready*/ |
---|
918 | |
---|
919 | bd_idx = RetBD - sc->Tx_Frst_BD; |
---|
920 | m = sc->Tx_mBuf_Ptr[bd_idx]; |
---|
921 | sc->Tx_mBuf_Ptr[bd_idx] = NULL; |
---|
922 | |
---|
923 | MFREE(m,n); |
---|
924 | RetBD->buffer = NULL; |
---|
925 | /* |
---|
926 | * Advance CurrBD to next BD |
---|
927 | */ |
---|
928 | RetBD = ((RetBD == sc->Tx_Last_BD) |
---|
929 | ? sc->Tx_Frst_BD |
---|
930 | : RetBD+1); |
---|
931 | } |
---|
932 | sc->Tx_NxtUsed_BD = RetBD; |
---|
933 | } |
---|
934 | |
---|
935 | /*=========================================================================*\ |
---|
936 | | Function: | |
---|
937 | \*-------------------------------------------------------------------------*/ |
---|
938 | static void tsec_sendpacket |
---|
939 | ( |
---|
940 | /*-------------------------------------------------------------------------*\ |
---|
941 | | Purpose: | |
---|
942 | | handle all tx events | |
---|
943 | +---------------------------------------------------------------------------+ |
---|
944 | | Input Parameters: | |
---|
945 | \*-------------------------------------------------------------------------*/ |
---|
946 | struct tsec_struct *sc, /* control structure */ |
---|
947 | struct mbuf *m /* start of packet to send */ |
---|
948 | ) |
---|
949 | /*-------------------------------------------------------------------------*\ |
---|
950 | | Return Value: | |
---|
951 | | <none> | |
---|
952 | \*=========================================================================*/ |
---|
953 | { |
---|
954 | PQBufferDescriptor_t *FrstBD = NULL; |
---|
955 | PQBufferDescriptor_t *CurrBD; |
---|
956 | uint16_t status; |
---|
957 | struct mbuf *l = NULL; /* ptr to last non-freed (non-empty) mbuf */ |
---|
958 | int bd_idx; |
---|
959 | /* |
---|
960 | * get next Tx BD |
---|
961 | */ |
---|
962 | CurrBD = sc->Tx_NxtFill_BD; |
---|
963 | while (m) { |
---|
964 | if(m->m_len == 0) { |
---|
965 | /* |
---|
966 | * Just toss empty mbufs |
---|
967 | */ |
---|
968 | struct mbuf *n; |
---|
969 | MFREE(m, n); |
---|
970 | m = n; |
---|
971 | if(l != NULL) { |
---|
972 | l->m_next = m; |
---|
973 | } |
---|
974 | } |
---|
975 | else { |
---|
976 | /* |
---|
977 | * this mbuf is non-empty, so send it |
---|
978 | */ |
---|
979 | /* |
---|
980 | * Is CurrBD still in Use/not yet retired? |
---|
981 | */ |
---|
982 | while (CurrBD->buffer != NULL) { |
---|
983 | /* |
---|
984 | * Then try to retire it |
---|
985 | * and to return its mbuf |
---|
986 | */ |
---|
987 | tsec_tx_retire(sc); |
---|
988 | if (CurrBD->buffer != NULL) { |
---|
989 | /* |
---|
990 | * Wait for anything to happen... |
---|
991 | */ |
---|
992 | tsec_tx_wait_for_events(sc,INTERRUPT_EVENT); |
---|
993 | } |
---|
994 | } |
---|
995 | status = ((BD_PAD_CRC | BD_TX_CRC) |
---|
996 | | ((m->m_next == NULL) |
---|
997 | ? BD_LAST | BD_INTERRUPT |
---|
998 | : 0) |
---|
999 | | ((CurrBD == sc->Tx_Last_BD) ? BD_WRAP : 0)); |
---|
1000 | |
---|
1001 | /* |
---|
1002 | * link buffer to BD |
---|
1003 | */ |
---|
1004 | CurrBD->buffer = mtod(m, void *); |
---|
1005 | CurrBD->length = (uint32_t)m->m_len; |
---|
1006 | l = m; /* remember: we use this mbuf */ |
---|
1007 | PF("TX[%08x] (%i)\n", CurrBD, m->m_len); |
---|
1008 | |
---|
1009 | bd_idx = CurrBD - sc->Tx_Frst_BD; |
---|
1010 | sc->Tx_mBuf_Ptr[bd_idx] = m; |
---|
1011 | |
---|
1012 | m = m->m_next; /* advance to next mbuf of this packet */ |
---|
1013 | /* |
---|
1014 | * is this the first BD of the packet? |
---|
1015 | * then don't set it to "READY" state, |
---|
1016 | * and remember this BD position |
---|
1017 | */ |
---|
1018 | if (FrstBD == NULL) { |
---|
1019 | FrstBD = CurrBD; |
---|
1020 | } |
---|
1021 | else { |
---|
1022 | status |= BD_READY; |
---|
1023 | } |
---|
1024 | CurrBD->status = status; |
---|
1025 | /* |
---|
1026 | * Advance CurrBD to next BD |
---|
1027 | */ |
---|
1028 | CurrBD = ((CurrBD == sc->Tx_Last_BD) |
---|
1029 | ? sc->Tx_Frst_BD |
---|
1030 | : CurrBD+1); |
---|
1031 | } |
---|
1032 | } |
---|
1033 | /* |
---|
1034 | * mbuf chain of this packet |
---|
1035 | * has been translated |
---|
1036 | * to BD chain, so set first BD ready now |
---|
1037 | */ |
---|
1038 | if (FrstBD != NULL) { |
---|
1039 | FrstBD->status |= BD_READY; |
---|
1040 | } |
---|
1041 | sc->Tx_NxtFill_BD = CurrBD; |
---|
1042 | /* |
---|
1043 | * wake up transmitter (clear TSTAT[THLT]) |
---|
1044 | */ |
---|
1045 | sc->reg_ptr->tstat = TSEC_TSTAT_THLT; |
---|
1046 | } |
---|
1047 | |
---|
1048 | /*=========================================================================*\ |
---|
1049 | | Function: | |
---|
1050 | \*-------------------------------------------------------------------------*/ |
---|
1051 | static void tsec_txDaemon |
---|
1052 | ( |
---|
1053 | /*-------------------------------------------------------------------------*\ |
---|
1054 | | Purpose: | |
---|
1055 | | handle all tx events | |
---|
1056 | +---------------------------------------------------------------------------+ |
---|
1057 | | Input Parameters: | |
---|
1058 | \*-------------------------------------------------------------------------*/ |
---|
1059 | void * arg /* argument, is sc structure ptr */ |
---|
1060 | ) |
---|
1061 | /*-------------------------------------------------------------------------*\ |
---|
1062 | | Return Value: | |
---|
1063 | | <none> | |
---|
1064 | \*=========================================================================*/ |
---|
1065 | { |
---|
1066 | struct tsec_struct *sc = |
---|
1067 | (struct tsec_struct *)arg; |
---|
1068 | struct ifnet *ifp = &sc->arpcom.ac_if; |
---|
1069 | struct mbuf *m; |
---|
1070 | bool finished = false; |
---|
1071 | rtems_event_set events; |
---|
1072 | #if !defined(CLREVENT_IN_IRQ) |
---|
1073 | uint32_t irq_events; |
---|
1074 | #endif |
---|
1075 | |
---|
1076 | /* |
---|
1077 | * enable Tx in MACCFG1 register |
---|
1078 | * FIXME: make this irq save |
---|
1079 | */ |
---|
1080 | sc->reg_ptr->maccfg1 |= TSEC_MACCFG1_TXEN; |
---|
1081 | while (!finished) { |
---|
1082 | /* |
---|
1083 | * wait for events to come in |
---|
1084 | */ |
---|
1085 | events = tsec_tx_wait_for_events(sc, |
---|
1086 | START_TRANSMIT_EVENT |
---|
1087 | | INTERRUPT_EVENT); |
---|
1088 | #if !defined(CLREVENT_IN_IRQ) |
---|
1089 | /* |
---|
1090 | * clear any pending TX events |
---|
1091 | */ |
---|
1092 | irq_events = sc->reg_ptr->ievent & IEVENT_TXALL; |
---|
1093 | sc->reg_ptr->ievent = irq_events; |
---|
1094 | #endif |
---|
1095 | /* |
---|
1096 | * retire any sent tx BDs |
---|
1097 | */ |
---|
1098 | tsec_tx_retire(sc); |
---|
1099 | /* |
---|
1100 | * Send packets till queue is empty |
---|
1101 | */ |
---|
1102 | do { |
---|
1103 | /* |
---|
1104 | * Get the next mbuf chain to transmit. |
---|
1105 | */ |
---|
1106 | IF_DEQUEUE(&ifp->if_snd, m); |
---|
1107 | |
---|
1108 | if (m) { |
---|
1109 | tsec_sendpacket(sc,m); |
---|
1110 | } |
---|
1111 | } while (m != NULL); |
---|
1112 | |
---|
1113 | ifp->if_flags &= ~IFF_OACTIVE; |
---|
1114 | } |
---|
1115 | /* |
---|
1116 | * disable Tx in MACCFG1 register |
---|
1117 | */ |
---|
1118 | sc->reg_ptr->maccfg1 &= ~TSEC_MACCFG1_TXEN; |
---|
1119 | /* |
---|
1120 | * terminate daemon |
---|
1121 | */ |
---|
1122 | sc->txDaemonTid = 0; |
---|
1123 | rtems_task_delete(RTEMS_SELF); |
---|
1124 | } |
---|
1125 | |
---|
1126 | /***************************************************************************\ |
---|
1127 | | Interrupt handlers and management routines | |
---|
1128 | \***************************************************************************/ |
---|
1129 | |
---|
1130 | /*=========================================================================*\ |
---|
1131 | | Function: | |
---|
1132 | \*-------------------------------------------------------------------------*/ |
---|
1133 | static void tsec_tx_irq_handler |
---|
1134 | ( |
---|
1135 | /*-------------------------------------------------------------------------*\ |
---|
1136 | | Purpose: | |
---|
1137 | | handle tx interrupts | |
---|
1138 | +---------------------------------------------------------------------------+ |
---|
1139 | | Input Parameters: | |
---|
1140 | \*-------------------------------------------------------------------------*/ |
---|
1141 | rtems_irq_hdl_param handle /* handle, is sc structure ptr */ |
---|
1142 | ) |
---|
1143 | /*-------------------------------------------------------------------------*\ |
---|
1144 | | Return Value: | |
---|
1145 | | <none> | |
---|
1146 | \*=========================================================================*/ |
---|
1147 | { |
---|
1148 | struct tsec_struct *sc = |
---|
1149 | (struct tsec_struct *)handle; |
---|
1150 | #if defined(CLREVENT_IN_IRQ) |
---|
1151 | uint32_t irq_events; |
---|
1152 | #endif |
---|
1153 | |
---|
1154 | PF("TXIRQ\n"); |
---|
1155 | sc->txInterrupts++; |
---|
1156 | /* |
---|
1157 | * disable tx interrupts |
---|
1158 | */ |
---|
1159 | TSEC_IMASK_SET(sc->reg_ptr->imask,IEVENT_TXALL,0); |
---|
1160 | |
---|
1161 | #if defined(CLREVENT_IN_IRQ) |
---|
1162 | /* |
---|
1163 | * clear any pending TX events |
---|
1164 | */ |
---|
1165 | irq_events = sc->reg_ptr->ievent & IEVENT_TXALL; |
---|
1166 | sc->reg_ptr->ievent = irq_events; |
---|
1167 | #endif |
---|
1168 | /* |
---|
1169 | * wake up tx Daemon |
---|
1170 | */ |
---|
1171 | rtems_bsdnet_event_send(sc->txDaemonTid, INTERRUPT_EVENT); |
---|
1172 | } |
---|
1173 | |
---|
1174 | /*=========================================================================*\ |
---|
1175 | | Function: | |
---|
1176 | \*-------------------------------------------------------------------------*/ |
---|
1177 | static void tsec_rx_irq_handler |
---|
1178 | ( |
---|
1179 | /*-------------------------------------------------------------------------*\ |
---|
1180 | | Purpose: | |
---|
1181 | | handle rx interrupts | |
---|
1182 | +---------------------------------------------------------------------------+ |
---|
1183 | | Input Parameters: | |
---|
1184 | \*-------------------------------------------------------------------------*/ |
---|
1185 | rtems_irq_hdl_param handle /* handle, is sc structure */ |
---|
1186 | ) |
---|
1187 | /*-------------------------------------------------------------------------*\ |
---|
1188 | | Return Value: | |
---|
1189 | | <none> | |
---|
1190 | \*=========================================================================*/ |
---|
1191 | { |
---|
1192 | struct tsec_struct *sc = |
---|
1193 | (struct tsec_struct *)handle; |
---|
1194 | #if defined(CLREVENT_IN_IRQ) |
---|
1195 | uint32_t irq_events; |
---|
1196 | #endif |
---|
1197 | |
---|
1198 | sc->rxInterrupts++; |
---|
1199 | PF("RXIRQ\n"); |
---|
1200 | /* |
---|
1201 | * disable rx interrupts |
---|
1202 | */ |
---|
1203 | TSEC_IMASK_SET(sc->reg_ptr->imask,IEVENT_RXALL,0); |
---|
1204 | #if defined(CLREVENT_IN_IRQ) |
---|
1205 | /* |
---|
1206 | * clear any pending RX events |
---|
1207 | */ |
---|
1208 | irq_events = sc->reg_ptr->ievent & IEVENT_RXALL; |
---|
1209 | sc->reg_ptr->ievent = irq_events; |
---|
1210 | #endif |
---|
1211 | /* |
---|
1212 | * wake up rx Daemon< |
---|
1213 | */ |
---|
1214 | rtems_bsdnet_event_send(sc->rxDaemonTid, INTERRUPT_EVENT); |
---|
1215 | } |
---|
1216 | |
---|
1217 | |
---|
1218 | /*=========================================================================*\ |
---|
1219 | | Function: | |
---|
1220 | \*-------------------------------------------------------------------------*/ |
---|
1221 | static void tsec_err_irq_handler |
---|
1222 | ( |
---|
1223 | /*-------------------------------------------------------------------------*\ |
---|
1224 | | Purpose: | |
---|
1225 | | handle error interrupts | |
---|
1226 | +---------------------------------------------------------------------------+ |
---|
1227 | | Input Parameters: | |
---|
1228 | \*-------------------------------------------------------------------------*/ |
---|
1229 | rtems_irq_hdl_param handle /* handle, is sc structure */ |
---|
1230 | ) |
---|
1231 | /*-------------------------------------------------------------------------*\ |
---|
1232 | | Return Value: | |
---|
1233 | | <none> | |
---|
1234 | \*=========================================================================*/ |
---|
1235 | { |
---|
1236 | struct tsec_struct *sc = |
---|
1237 | (struct tsec_struct *)handle; |
---|
1238 | PF("ERIRQ\n"); |
---|
1239 | /* |
---|
1240 | * clear error events in IEVENT |
---|
1241 | */ |
---|
1242 | sc->reg_ptr->ievent = IEVENT_ERRALL; |
---|
1243 | /* |
---|
1244 | * has Rx been stopped? then restart it |
---|
1245 | */ |
---|
1246 | if (0 != (sc->reg_ptr->rstat & TSEC_RSTAT_QHLT)) { |
---|
1247 | sc->rxErrors++; |
---|
1248 | sc->reg_ptr->rstat = TSEC_RSTAT_QHLT; |
---|
1249 | } |
---|
1250 | /* |
---|
1251 | * has Tx been stopped? then restart it |
---|
1252 | */ |
---|
1253 | if (0 != (sc->reg_ptr->tstat & TSEC_TSTAT_THLT)) { |
---|
1254 | sc->txErrors++; |
---|
1255 | sc->reg_ptr->tstat = TSEC_TSTAT_THLT; |
---|
1256 | } |
---|
1257 | } |
---|
1258 | |
---|
1259 | |
---|
1260 | /*=========================================================================*\ |
---|
1261 | | Function: | |
---|
1262 | \*-------------------------------------------------------------------------*/ |
---|
1263 | static uint32_t tsec_irq_mask |
---|
1264 | ( |
---|
1265 | /*-------------------------------------------------------------------------*\ |
---|
1266 | | Purpose: | |
---|
1267 | | determine irq mask for given interrupt number | |
---|
1268 | +---------------------------------------------------------------------------+ |
---|
1269 | | Input Parameters: | |
---|
1270 | \*-------------------------------------------------------------------------*/ |
---|
1271 | int irqnum, |
---|
1272 | struct tsec_struct *sc |
---|
1273 | ) |
---|
1274 | /*-------------------------------------------------------------------------*\ |
---|
1275 | | Return Value: | |
---|
1276 | | interrupt mask (for ievent/imask register) | |
---|
1277 | \*=========================================================================*/ |
---|
1278 | { |
---|
1279 | return ((irqnum == sc->irq_num_tx) |
---|
1280 | ? IEVENT_TXALL |
---|
1281 | : ((irqnum == sc->irq_num_rx) |
---|
1282 | ? IEVENT_RXALL |
---|
1283 | : ((irqnum == sc->irq_num_err) |
---|
1284 | ? IEVENT_ERRALL |
---|
1285 | : 0))); |
---|
1286 | } |
---|
1287 | /*=========================================================================*\ |
---|
1288 | | Function: | |
---|
1289 | \*-------------------------------------------------------------------------*/ |
---|
1290 | static void tsec_irq_on |
---|
1291 | ( |
---|
1292 | /*-------------------------------------------------------------------------*\ |
---|
1293 | | Purpose: | |
---|
1294 | | enable interrupts in TSEC mask register | |
---|
1295 | +---------------------------------------------------------------------------+ |
---|
1296 | | Input Parameters: | |
---|
1297 | \*-------------------------------------------------------------------------*/ |
---|
1298 | const |
---|
1299 | rtems_irq_connect_data *irq_conn_data /* irq connect data */ |
---|
1300 | ) |
---|
1301 | /*-------------------------------------------------------------------------*\ |
---|
1302 | | Return Value: | |
---|
1303 | | <none> | |
---|
1304 | \*=========================================================================*/ |
---|
1305 | { |
---|
1306 | struct tsec_struct *sc = |
---|
1307 | (struct tsec_struct *)(irq_conn_data->handle); |
---|
1308 | |
---|
1309 | TSEC_IMASK_SET(sc->reg_ptr->imask, |
---|
1310 | tsec_irq_mask(irq_conn_data->name,sc), |
---|
1311 | ~0); |
---|
1312 | } |
---|
1313 | |
---|
1314 | /*=========================================================================*\ |
---|
1315 | | Function: | |
---|
1316 | \*-------------------------------------------------------------------------*/ |
---|
1317 | static void tsec_irq_off |
---|
1318 | ( |
---|
1319 | /*-------------------------------------------------------------------------*\ |
---|
1320 | | Purpose: | |
---|
1321 | | disable TX interrupts in TSEC mask register | |
---|
1322 | +---------------------------------------------------------------------------+ |
---|
1323 | | Input Parameters: | |
---|
1324 | \*-------------------------------------------------------------------------*/ |
---|
1325 | const |
---|
1326 | rtems_irq_connect_data *irq_conn_data /* irq connect data */ |
---|
1327 | ) |
---|
1328 | /*-------------------------------------------------------------------------*\ |
---|
1329 | | Return Value: | |
---|
1330 | | <none> | |
---|
1331 | \*=========================================================================*/ |
---|
1332 | { |
---|
1333 | struct tsec_struct *sc = |
---|
1334 | (struct tsec_struct *)irq_conn_data->handle; |
---|
1335 | |
---|
1336 | TSEC_IMASK_SET(sc->reg_ptr->imask, |
---|
1337 | tsec_irq_mask(irq_conn_data->name,sc), |
---|
1338 | 0); |
---|
1339 | } |
---|
1340 | |
---|
1341 | /*=========================================================================*\ |
---|
1342 | | Function: | |
---|
1343 | \*-------------------------------------------------------------------------*/ |
---|
1344 | static int tsec_irq_isOn |
---|
1345 | ( |
---|
1346 | /*-------------------------------------------------------------------------*\ |
---|
1347 | | Purpose: | |
---|
1348 | | check state of interrupts in TSEC mask register | |
---|
1349 | +---------------------------------------------------------------------------+ |
---|
1350 | | Input Parameters: | |
---|
1351 | \*-------------------------------------------------------------------------*/ |
---|
1352 | const |
---|
1353 | rtems_irq_connect_data *irq_conn_data /* irq connect data */ |
---|
1354 | ) |
---|
1355 | /*-------------------------------------------------------------------------*\ |
---|
1356 | | Return Value: | |
---|
1357 | | <none> | |
---|
1358 | \*=========================================================================*/ |
---|
1359 | { |
---|
1360 | struct tsec_struct *sc = |
---|
1361 | (struct tsec_struct *)irq_conn_data->handle; |
---|
1362 | |
---|
1363 | return (0 != (sc->reg_ptr->imask |
---|
1364 | & tsec_irq_mask(irq_conn_data->name,sc))); |
---|
1365 | } |
---|
1366 | |
---|
1367 | /*=========================================================================*\ |
---|
1368 | | Function: | |
---|
1369 | \*-------------------------------------------------------------------------*/ |
---|
1370 | static void tsec_install_irq_handlers |
---|
1371 | ( |
---|
1372 | /*-------------------------------------------------------------------------*\ |
---|
1373 | | Purpose: | |
---|
1374 | | (un-)install the interrupt handlers | |
---|
1375 | +---------------------------------------------------------------------------+ |
---|
1376 | | Input Parameters: | |
---|
1377 | \*-------------------------------------------------------------------------*/ |
---|
1378 | struct tsec_struct *sc, /* ptr to control structure */ |
---|
1379 | bool install /* true: install, false: remove */ |
---|
1380 | ) |
---|
1381 | /*-------------------------------------------------------------------------*\ |
---|
1382 | | Return Value: | |
---|
1383 | | <none> | |
---|
1384 | \*=========================================================================*/ |
---|
1385 | { |
---|
1386 | size_t i; |
---|
1387 | |
---|
1388 | rtems_irq_connect_data irq_conn_data[3] = { |
---|
1389 | { |
---|
1390 | sc->irq_num_tx, |
---|
1391 | tsec_tx_irq_handler, /* rtems_irq_hdl */ |
---|
1392 | (rtems_irq_hdl_param)sc, /* (rtems_irq_hdl_param) */ |
---|
1393 | tsec_irq_on, /* (rtems_irq_enable) */ |
---|
1394 | tsec_irq_off, /* (rtems_irq_disable) */ |
---|
1395 | tsec_irq_isOn /* (rtems_irq_is_enabled) */ |
---|
1396 | },{ |
---|
1397 | sc->irq_num_rx, |
---|
1398 | tsec_rx_irq_handler, /* rtems_irq_hdl */ |
---|
1399 | (rtems_irq_hdl_param)sc, /* (rtems_irq_hdl_param) */ |
---|
1400 | tsec_irq_on, /* (rtems_irq_enable) */ |
---|
1401 | tsec_irq_off, /* (rtems_irq_disable) */ |
---|
1402 | tsec_irq_isOn /* (rtems_irq_is_enabled) */ |
---|
1403 | },{ |
---|
1404 | sc->irq_num_err, |
---|
1405 | tsec_err_irq_handler, /* rtems_irq_hdl */ |
---|
1406 | (rtems_irq_hdl_param)sc, /* (rtems_irq_hdl_param) */ |
---|
1407 | tsec_irq_on, /* (rtems_irq_enable) */ |
---|
1408 | tsec_irq_off, /* (rtems_irq_disable) */ |
---|
1409 | tsec_irq_isOn /* (rtems_irq_is_enabled) */ |
---|
1410 | } |
---|
1411 | }; |
---|
1412 | |
---|
1413 | /* |
---|
1414 | * (un-)install handler for Tx/Rx/Error |
---|
1415 | */ |
---|
1416 | for (i = 0; |
---|
1417 | i < sizeof(irq_conn_data)/sizeof(irq_conn_data[0]); |
---|
1418 | i++) { |
---|
1419 | if (install) { |
---|
1420 | if (!BSP_install_rtems_irq_handler (&irq_conn_data[i])) { |
---|
1421 | rtems_panic("TSEC: cannot install IRQ handler"); |
---|
1422 | } |
---|
1423 | } |
---|
1424 | else { |
---|
1425 | if (!BSP_remove_rtems_irq_handler (&irq_conn_data[i])) { |
---|
1426 | rtems_panic("TSEC: cannot uninstall IRQ handler"); |
---|
1427 | } |
---|
1428 | } |
---|
1429 | } |
---|
1430 | } |
---|
1431 | |
---|
1432 | /***************************************************************************\ |
---|
1433 | | Initialization and interface routines | |
---|
1434 | \***************************************************************************/ |
---|
1435 | |
---|
1436 | /*=========================================================================*\ |
---|
1437 | | Function: | |
---|
1438 | \*-------------------------------------------------------------------------*/ |
---|
1439 | static void tsec_init |
---|
1440 | ( |
---|
1441 | /*-------------------------------------------------------------------------*\ |
---|
1442 | | Purpose: | |
---|
1443 | | initialize the driver and the hardware | |
---|
1444 | +---------------------------------------------------------------------------+ |
---|
1445 | | Input Parameters: | |
---|
1446 | \*-------------------------------------------------------------------------*/ |
---|
1447 | void *arg /* argument pointer, contains *sc */ |
---|
1448 | ) |
---|
1449 | /*-------------------------------------------------------------------------*\ |
---|
1450 | | Return Value: | |
---|
1451 | | zero, if success | |
---|
1452 | \*=========================================================================*/ |
---|
1453 | { |
---|
1454 | struct tsec_struct *sc = (struct tsec_struct *)arg; |
---|
1455 | struct ifnet *ifp = &sc->arpcom.ac_if; |
---|
1456 | /* |
---|
1457 | * check, whether device is not yet running |
---|
1458 | */ |
---|
1459 | if (0 == sc->rxDaemonTid) { |
---|
1460 | /* |
---|
1461 | * allocate rx/tx BDs |
---|
1462 | */ |
---|
1463 | mpc83xx_rxbd_alloc_clear(sc); |
---|
1464 | mpc83xx_txbd_alloc_clear(sc); |
---|
1465 | /* |
---|
1466 | * allocate storage for mbuf ptrs |
---|
1467 | */ |
---|
1468 | sc->Rx_mBuf_Ptr = calloc(sc->rxBdCount,sizeof(struct mbuf *)); |
---|
1469 | sc->Tx_mBuf_Ptr = calloc(sc->txBdCount,sizeof(struct mbuf *)); |
---|
1470 | if ((sc->Rx_mBuf_Ptr == NULL) || |
---|
1471 | (sc->Tx_mBuf_Ptr == NULL)) { |
---|
1472 | rtems_panic("TSEC: cannot allocate buffers for mbuf management"); |
---|
1473 | |
---|
1474 | } |
---|
1475 | |
---|
1476 | /* |
---|
1477 | * initialize TSEC hardware: |
---|
1478 | * - set interrupt coalescing to BDCount/8, Time of 8 frames |
---|
1479 | * - enable DMA snooping |
---|
1480 | */ |
---|
1481 | tsec_hwinit(sc); |
---|
1482 | /* |
---|
1483 | * init access to phys |
---|
1484 | */ |
---|
1485 | tsec_mdio_init(sc); |
---|
1486 | /* |
---|
1487 | * Start driver tasks |
---|
1488 | */ |
---|
1489 | sc->txDaemonTid = rtems_bsdnet_newproc("TStx", |
---|
1490 | 4096, |
---|
1491 | tsec_txDaemon, |
---|
1492 | sc); |
---|
1493 | sc->rxDaemonTid = rtems_bsdnet_newproc("TSrx", 4096, |
---|
1494 | tsec_rxDaemon, |
---|
1495 | sc); |
---|
1496 | /* |
---|
1497 | * install interrupt handlers |
---|
1498 | */ |
---|
1499 | tsec_install_irq_handlers(sc,true); |
---|
1500 | } |
---|
1501 | /* |
---|
1502 | * Set flags appropriately |
---|
1503 | */ |
---|
1504 | if(ifp->if_flags & IFF_PROMISC) { |
---|
1505 | sc->reg_ptr->rctrl |= TSEC_RCTRL_PROM; |
---|
1506 | } |
---|
1507 | else { |
---|
1508 | sc->reg_ptr->rctrl &= ~TSEC_RCTRL_PROM; |
---|
1509 | } |
---|
1510 | |
---|
1511 | #if defined(MPC83XX_BOARD_HSC_CM01) |
---|
1512 | /* |
---|
1513 | * for HSC CM01: we need to configure the PHY to use maximum skew adjust |
---|
1514 | */ |
---|
1515 | |
---|
1516 | tsec_mdio_write(-1,sc,23,0x0100); |
---|
1517 | #endif |
---|
1518 | |
---|
1519 | /* |
---|
1520 | * init timer so the "watchdog function gets called periodically |
---|
1521 | */ |
---|
1522 | ifp->if_timer = 1; |
---|
1523 | /* |
---|
1524 | * Tell the world that we're running. |
---|
1525 | */ |
---|
1526 | ifp->if_flags |= IFF_RUNNING; |
---|
1527 | } |
---|
1528 | |
---|
1529 | /*=========================================================================*\ |
---|
1530 | | Function: | |
---|
1531 | \*-------------------------------------------------------------------------*/ |
---|
1532 | static void tsec_off |
---|
1533 | ( |
---|
1534 | /*-------------------------------------------------------------------------*\ |
---|
1535 | | Purpose: | |
---|
1536 | | deinitialize the driver and the hardware | |
---|
1537 | +---------------------------------------------------------------------------+ |
---|
1538 | | Input Parameters: | |
---|
1539 | \*-------------------------------------------------------------------------*/ |
---|
1540 | struct tsec_struct *sc /* ptr to control structure */ |
---|
1541 | ) |
---|
1542 | /*-------------------------------------------------------------------------*\ |
---|
1543 | | Return Value: | |
---|
1544 | | <none> | |
---|
1545 | \*=========================================================================*/ |
---|
1546 | { |
---|
1547 | /* |
---|
1548 | * deinitialize driver? |
---|
1549 | */ |
---|
1550 | } |
---|
1551 | |
---|
1552 | /*=========================================================================*\ |
---|
1553 | | Function: | |
---|
1554 | \*-------------------------------------------------------------------------*/ |
---|
1555 | static void tsec_stats |
---|
1556 | ( |
---|
1557 | /*-------------------------------------------------------------------------*\ |
---|
1558 | | Purpose: | |
---|
1559 | | print statistics | |
---|
1560 | +---------------------------------------------------------------------------+ |
---|
1561 | | Input Parameters: | |
---|
1562 | \*-------------------------------------------------------------------------*/ |
---|
1563 | struct tsec_struct *sc /* ptr to control structure */ |
---|
1564 | ) |
---|
1565 | /*-------------------------------------------------------------------------*\ |
---|
1566 | | Return Value: | |
---|
1567 | | <none> | |
---|
1568 | \*=========================================================================*/ |
---|
1569 | { |
---|
1570 | if (sc->phy_default >= 0) { |
---|
1571 | int media; |
---|
1572 | int result; |
---|
1573 | /* |
---|
1574 | * fetch/print media info |
---|
1575 | */ |
---|
1576 | media = IFM_MAKEWORD(0,0,0,sc->phy_default); /* fetch from default phy */ |
---|
1577 | |
---|
1578 | result = tsec_ioctl(&(sc->arpcom.ac_if), |
---|
1579 | SIOCGIFMEDIA, |
---|
1580 | (caddr_t)&media); |
---|
1581 | if (result == 0) { |
---|
1582 | rtems_ifmedia2str(media,NULL,0); |
---|
1583 | printf ("\n"); |
---|
1584 | } else { |
---|
1585 | printf ("PHY communication error\n"); |
---|
1586 | } |
---|
1587 | } |
---|
1588 | #if 0 /* print all PHY registers */ |
---|
1589 | { |
---|
1590 | int reg; |
---|
1591 | uint32_t reg_val; |
---|
1592 | printf("****** PHY register values****\n"); |
---|
1593 | for (reg = 0;reg <= 31;reg++) { |
---|
1594 | tsec_mdio_read(-1,sc,reg,®_val); |
---|
1595 | printf("%02d:0x%04x%c",reg,reg_val, |
---|
1596 | (((reg % 4) == 3) ? '\n' : ' ')); |
---|
1597 | } |
---|
1598 | } |
---|
1599 | #endif |
---|
1600 | /* |
---|
1601 | * print some statistics |
---|
1602 | */ |
---|
1603 | printf (" Rx Interrupts:%-8lu", sc->rxInterrupts); |
---|
1604 | printf (" Rx Errors:%-8lu", sc->rxErrors); |
---|
1605 | printf (" Rx packets:%-8lu\n", |
---|
1606 | sc->reg_ptr->rmon_mib[TSEC_RMON_RPKT]); |
---|
1607 | printf (" Rx broadcasts:%-8lu", |
---|
1608 | sc->reg_ptr->rmon_mib[TSEC_RMON_RBCA]); |
---|
1609 | printf (" Rx multicasts:%-8lu", |
---|
1610 | sc->reg_ptr->rmon_mib[TSEC_RMON_RMCA]); |
---|
1611 | printf (" Giant:%-8lu\n", |
---|
1612 | sc->reg_ptr->rmon_mib[TSEC_RMON_ROVR]); |
---|
1613 | printf (" Non-octet:%-8lu", |
---|
1614 | sc->reg_ptr->rmon_mib[TSEC_RMON_RALN]); |
---|
1615 | printf (" Bad CRC:%-8lu", |
---|
1616 | sc->reg_ptr->rmon_mib[TSEC_RMON_RFCS]); |
---|
1617 | printf (" Overrun:%-8lu\n", |
---|
1618 | sc->reg_ptr->rmon_mib[TSEC_RMON_RDRP]); |
---|
1619 | |
---|
1620 | printf (" Tx Interrupts:%-8lu", sc->txInterrupts); |
---|
1621 | printf (" Tx Errors:%-8lu", sc->txErrors); |
---|
1622 | printf (" Tx packets:%-8lu\n", |
---|
1623 | sc->reg_ptr->rmon_mib[TSEC_RMON_TPKT]); |
---|
1624 | printf (" Deferred:%-8lu", |
---|
1625 | sc->reg_ptr->rmon_mib[TSEC_RMON_TDFR]); |
---|
1626 | printf (" Late Collision:%-8lu", |
---|
1627 | sc->reg_ptr->rmon_mib[TSEC_RMON_TLCL]); |
---|
1628 | printf ("Retransmit Limit:%-8lu\n", |
---|
1629 | sc->reg_ptr->rmon_mib[TSEC_RMON_TEDF]); |
---|
1630 | printf (" Underrun:%-8lu\n", |
---|
1631 | sc->reg_ptr->rmon_mib[TSEC_RMON_TUND]); |
---|
1632 | } |
---|
1633 | |
---|
1634 | /*=========================================================================*\ |
---|
1635 | | Function: | |
---|
1636 | \*-------------------------------------------------------------------------*/ |
---|
1637 | static int tsec_ioctl |
---|
1638 | ( |
---|
1639 | /*-------------------------------------------------------------------------*\ |
---|
1640 | | Purpose: | |
---|
1641 | | perform io control functions | |
---|
1642 | +---------------------------------------------------------------------------+ |
---|
1643 | | Input Parameters: | |
---|
1644 | \*-------------------------------------------------------------------------*/ |
---|
1645 | struct ifnet *ifp, /* interface information */ |
---|
1646 | ioctl_command_t command, /* ioctl command code */ |
---|
1647 | caddr_t data /* optional data */ |
---|
1648 | ) |
---|
1649 | /*-------------------------------------------------------------------------*\ |
---|
1650 | | Return Value: | |
---|
1651 | | zero, if success | |
---|
1652 | \*=========================================================================*/ |
---|
1653 | { |
---|
1654 | struct tsec_struct *sc = ifp->if_softc; |
---|
1655 | int error = 0; |
---|
1656 | |
---|
1657 | switch(command) { |
---|
1658 | /* |
---|
1659 | * access PHY via MII |
---|
1660 | */ |
---|
1661 | case SIOCGIFMEDIA: |
---|
1662 | case SIOCSIFMEDIA: |
---|
1663 | rtems_mii_ioctl (&(sc->mdio_info),sc,command,(void *)data); |
---|
1664 | break; |
---|
1665 | case SIOCGIFADDR: |
---|
1666 | case SIOCSIFADDR: |
---|
1667 | /* |
---|
1668 | * pass through to general ether_ioctl |
---|
1669 | */ |
---|
1670 | ether_ioctl(ifp, command, data); |
---|
1671 | break; |
---|
1672 | |
---|
1673 | case SIOCSIFFLAGS: |
---|
1674 | /* |
---|
1675 | * adjust active state |
---|
1676 | */ |
---|
1677 | if (ifp->if_flags & IFF_RUNNING) { |
---|
1678 | tsec_off(sc); |
---|
1679 | } |
---|
1680 | if (ifp->if_flags & IFF_UP) { |
---|
1681 | tsec_init(sc); |
---|
1682 | } |
---|
1683 | break; |
---|
1684 | |
---|
1685 | case SIO_RTEMS_SHOW_STATS: |
---|
1686 | /* |
---|
1687 | * show interface statistics |
---|
1688 | */ |
---|
1689 | tsec_stats(sc); |
---|
1690 | break; |
---|
1691 | |
---|
1692 | /* |
---|
1693 | * All sorts of multicast commands need to be added here! |
---|
1694 | */ |
---|
1695 | default: |
---|
1696 | error = EINVAL; |
---|
1697 | break; |
---|
1698 | } |
---|
1699 | |
---|
1700 | return error; |
---|
1701 | } |
---|
1702 | |
---|
1703 | /*=========================================================================*\ |
---|
1704 | | Function: | |
---|
1705 | \*-------------------------------------------------------------------------*/ |
---|
1706 | static int tsec_mode_adapt |
---|
1707 | ( |
---|
1708 | /*-------------------------------------------------------------------------*\ |
---|
1709 | | Purpose: | |
---|
1710 | | init the PHY and adapt TSEC settings | |
---|
1711 | +---------------------------------------------------------------------------+ |
---|
1712 | | Input Parameters: | |
---|
1713 | \*-------------------------------------------------------------------------*/ |
---|
1714 | struct ifnet *ifp |
---|
1715 | ) |
---|
1716 | /*-------------------------------------------------------------------------*\ |
---|
1717 | | Return Value: | |
---|
1718 | | 0, if success | |
---|
1719 | \*=========================================================================*/ |
---|
1720 | { |
---|
1721 | int result = 0; |
---|
1722 | struct tsec_struct *sc = ifp->if_softc; |
---|
1723 | int media = IFM_MAKEWORD( 0, 0, 0, sc->phy_default); |
---|
1724 | |
---|
1725 | /* In case no PHY is available stop now */ |
---|
1726 | if (sc->phy_default < 0) { |
---|
1727 | return 0; |
---|
1728 | } |
---|
1729 | |
---|
1730 | /* |
---|
1731 | * fetch media status |
---|
1732 | */ |
---|
1733 | result = tsec_ioctl(ifp,SIOCGIFMEDIA,(caddr_t)&media); |
---|
1734 | if (result != 0) { |
---|
1735 | return result; |
---|
1736 | } |
---|
1737 | |
---|
1738 | /* |
---|
1739 | * status is unchanged? then do nothing |
---|
1740 | */ |
---|
1741 | if (media == sc->media_state) { |
---|
1742 | return 0; |
---|
1743 | } |
---|
1744 | /* |
---|
1745 | * otherwise: for the first call, try to negotiate mode |
---|
1746 | */ |
---|
1747 | if (sc->media_state == 0) { |
---|
1748 | /* |
---|
1749 | * set media status: set auto negotiation -> start auto-negotiation |
---|
1750 | */ |
---|
1751 | media = IFM_MAKEWORD(0,IFM_AUTO,0,sc->phy_default); |
---|
1752 | result = tsec_ioctl(ifp,SIOCSIFMEDIA,(caddr_t)&media); |
---|
1753 | if (result != 0) { |
---|
1754 | return result; |
---|
1755 | } |
---|
1756 | /* |
---|
1757 | * check auto-negotiation status |
---|
1758 | */ |
---|
1759 | media = IFM_MAKEWORD(0,0,0,sc->phy_default); |
---|
1760 | result = tsec_ioctl(ifp,SIOCGIFMEDIA,(caddr_t)&media); |
---|
1761 | if (result != 0 || IFM_NONE == IFM_SUBTYPE(media)) { |
---|
1762 | return result; |
---|
1763 | } |
---|
1764 | } |
---|
1765 | |
---|
1766 | /* |
---|
1767 | * now set HW according to media results: |
---|
1768 | */ |
---|
1769 | /* |
---|
1770 | * if we are 1000MBit, then switch IF to byte mode |
---|
1771 | */ |
---|
1772 | if (IFM_1000_T == IFM_SUBTYPE(media)) { |
---|
1773 | sc->reg_ptr->maccfg2 = |
---|
1774 | ((sc->reg_ptr->maccfg2 & ~TSEC_MACCFG2_IFMODE_MSK) |
---|
1775 | | TSEC_MACCFG2_IFMODE_BYT); |
---|
1776 | } |
---|
1777 | else { |
---|
1778 | sc->reg_ptr->maccfg2 = |
---|
1779 | ((sc->reg_ptr->maccfg2 & ~TSEC_MACCFG2_IFMODE_MSK) |
---|
1780 | | TSEC_MACCFG2_IFMODE_NIB); |
---|
1781 | } |
---|
1782 | /* |
---|
1783 | * if we are 10MBit, then switch rate to 10M |
---|
1784 | */ |
---|
1785 | if (IFM_10_T == IFM_SUBTYPE(media)) { |
---|
1786 | sc->reg_ptr->ecntrl &= ~TSEC_ECNTRL_R100M; |
---|
1787 | } |
---|
1788 | else { |
---|
1789 | sc->reg_ptr->ecntrl |= TSEC_ECNTRL_R100M; |
---|
1790 | } |
---|
1791 | /* |
---|
1792 | * if we are half duplex then switch to half duplex |
---|
1793 | */ |
---|
1794 | if (0 == (IFM_FDX & IFM_OPTIONS(media))) { |
---|
1795 | sc->reg_ptr->maccfg2 &= ~TSEC_MACCFG2_FULLDUPLEX; |
---|
1796 | } |
---|
1797 | else { |
---|
1798 | sc->reg_ptr->maccfg2 |= TSEC_MACCFG2_FULLDUPLEX; |
---|
1799 | } |
---|
1800 | /* |
---|
1801 | * store current media state for future compares |
---|
1802 | */ |
---|
1803 | sc->media_state = media; |
---|
1804 | |
---|
1805 | return 0; |
---|
1806 | } |
---|
1807 | |
---|
1808 | /*=========================================================================*\ |
---|
1809 | | Function: | |
---|
1810 | \*-------------------------------------------------------------------------*/ |
---|
1811 | static void tsec_watchdog |
---|
1812 | ( |
---|
1813 | /*-------------------------------------------------------------------------*\ |
---|
1814 | | Purpose: | |
---|
1815 | | periodically poll the PHY. if mode has changed, | |
---|
1816 | | then adjust the TSEC settings | |
---|
1817 | +---------------------------------------------------------------------------+ |
---|
1818 | | Input Parameters: | |
---|
1819 | \*-------------------------------------------------------------------------*/ |
---|
1820 | struct ifnet *ifp |
---|
1821 | ) |
---|
1822 | /*-------------------------------------------------------------------------*\ |
---|
1823 | | Return Value: | |
---|
1824 | | 1, if success | |
---|
1825 | \*=========================================================================*/ |
---|
1826 | { |
---|
1827 | tsec_mode_adapt(ifp); |
---|
1828 | ifp->if_timer = TSEC_WATCHDOG_TIMEOUT; |
---|
1829 | } |
---|
1830 | |
---|
1831 | static int tsec_driver_attach(struct rtems_bsdnet_ifconfig *config) |
---|
1832 | { |
---|
1833 | tsec_config *tsec_cfg = config->drv_ctrl; |
---|
1834 | int unitNumber = tsec_cfg->unit_number; |
---|
1835 | char *unitName = tsec_cfg->unit_name; |
---|
1836 | struct tsec_struct *sc; |
---|
1837 | struct ifnet *ifp; |
---|
1838 | |
---|
1839 | /* |
---|
1840 | * Is driver free? |
---|
1841 | */ |
---|
1842 | if ((unitNumber <= 0) || (unitNumber > TSEC_COUNT)) { |
---|
1843 | |
---|
1844 | printk ("Bad TSEC unit number.\n"); |
---|
1845 | return 0; |
---|
1846 | |
---|
1847 | } |
---|
1848 | |
---|
1849 | sc = &tsec_driver[unitNumber - 1]; |
---|
1850 | ifp = &sc->arpcom.ac_if; |
---|
1851 | |
---|
1852 | if(ifp->if_softc != NULL) { |
---|
1853 | printk ("Driver already in use.\n"); |
---|
1854 | return 0; |
---|
1855 | } |
---|
1856 | |
---|
1857 | /* |
---|
1858 | * Process options |
---|
1859 | */ |
---|
1860 | if(config->hardware_address) { |
---|
1861 | memcpy(sc->arpcom.ac_enaddr, config->hardware_address, ETHER_ADDR_LEN); |
---|
1862 | } |
---|
1863 | else { |
---|
1864 | rtems_panic("TSEC: No Ethernet address specified!\n"); |
---|
1865 | } |
---|
1866 | |
---|
1867 | sc->rxBdCount = (config->rbuf_count > 0) ? config->rbuf_count : RX_BUF_COUNT; |
---|
1868 | sc->txBdCount = (config->xbuf_count > 0) ? config->xbuf_count : TX_BUF_COUNT; |
---|
1869 | sc->acceptBroadcast = !config->ignore_broadcast; |
---|
1870 | |
---|
1871 | /* get pointer to TSEC register block */ |
---|
1872 | sc->reg_ptr = tsec_cfg->reg_ptr; |
---|
1873 | sc->mdio_ptr = tsec_cfg->mdio_ptr; |
---|
1874 | |
---|
1875 | /* IRQ numbers */ |
---|
1876 | sc->irq_num_tx = tsec_cfg->irq_num_tx; |
---|
1877 | sc->irq_num_rx = tsec_cfg->irq_num_rx; |
---|
1878 | sc->irq_num_err = tsec_cfg->irq_num_err; |
---|
1879 | |
---|
1880 | /* |
---|
1881 | * setup info about mdio interface |
---|
1882 | */ |
---|
1883 | sc->mdio_info.mdio_r = tsec_mdio_read; |
---|
1884 | sc->mdio_info.mdio_w = tsec_mdio_write; |
---|
1885 | sc->mdio_info.has_gmii = 1; /* we support gigabit IF */ |
---|
1886 | |
---|
1887 | /* PHY address */ |
---|
1888 | sc->phy_default = tsec_cfg->phy_default; |
---|
1889 | |
---|
1890 | /* |
---|
1891 | * Set up network interface values |
---|
1892 | */ |
---|
1893 | ifp->if_softc = sc; |
---|
1894 | ifp->if_unit = unitNumber; |
---|
1895 | ifp->if_name = unitName; |
---|
1896 | ifp->if_mtu = (config->mtu > 0) ? config->mtu : ETHERMTU; |
---|
1897 | ifp->if_init = tsec_init; |
---|
1898 | ifp->if_ioctl = tsec_ioctl; |
---|
1899 | ifp->if_start = tsec_tx_start; |
---|
1900 | ifp->if_output = ether_output; |
---|
1901 | ifp->if_watchdog = tsec_watchdog; /* XXX: timer is set in "init" */ |
---|
1902 | |
---|
1903 | ifp->if_flags = (config->ignore_broadcast) ? 0 : IFF_BROADCAST; |
---|
1904 | /*ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX;*/ |
---|
1905 | |
---|
1906 | if(ifp->if_snd.ifq_maxlen == 0) { |
---|
1907 | ifp->if_snd.ifq_maxlen = ifqmaxlen; |
---|
1908 | } |
---|
1909 | |
---|
1910 | /* |
---|
1911 | * Attach the interface |
---|
1912 | */ |
---|
1913 | if_attach(ifp); |
---|
1914 | |
---|
1915 | ether_ifattach(ifp); |
---|
1916 | |
---|
1917 | return 1; |
---|
1918 | } |
---|
1919 | |
---|
1920 | int tsec_driver_attach_detach( |
---|
1921 | struct rtems_bsdnet_ifconfig *config, |
---|
1922 | int attaching |
---|
1923 | ) |
---|
1924 | { |
---|
1925 | if (attaching) { |
---|
1926 | return tsec_driver_attach(config); |
---|
1927 | } else { |
---|
1928 | return 0; |
---|
1929 | } |
---|
1930 | } |
---|