2 * Copyright (c) 2003 Hidetoshi Shimokawa
3 * Copyright (c) 1998-2002 Katsushi Kobayashi and Hidetoshi Shimokawa
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 * 3. All advertising materials mentioning features or use of this software
15 * must display the acknowledgement as bellow:
17 * This product includes software developed by K. Kobayashi and H. Shimokawa
19 * 4. The name of the author may not be used to endorse or promote products
20 * derived from this software without specific prior written permission.
22 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
23 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
24 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
25 * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
26 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
27 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
28 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
30 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
31 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
32 * POSSIBILITY OF SUCH DAMAGE.
34 * $FreeBSD: src/sys/dev/firewire/fwohci.c,v 1.72 2004/01/22 14:41:17 simokawa Exp $
35 * $FreeBSD: src/sys/dev/firewire/fwohci.c,v 1.1.2.19 2003/05/01 06:24:37 simokawa Exp $
36 * $DragonFly: src/sys/bus/firewire/fwohci.c,v 1.7 2004/04/07 05:54:27 dillon Exp $
46 #include <sys/param.h>
47 #include <sys/systm.h>
49 #include <sys/malloc.h>
50 #include <sys/sockio.h>
52 #include <sys/kernel.h>
54 #include <sys/endian.h>
56 #include <machine/bus.h>
58 #if defined(__DragonFly__) || __FreeBSD_version < 500000
59 #include <machine/clock.h> /* for DELAY() */
64 #include "firewirereg.h"
66 #include "fwohcireg.h"
67 #include "fwohcivar.h"
68 #include "firewire_phy.h"
70 #include <dev/firewire/firewire.h>
71 #include <dev/firewire/firewirereg.h>
72 #include <dev/firewire/fwdma.h>
73 #include <dev/firewire/fwohcireg.h>
74 #include <dev/firewire/fwohcivar.h>
75 #include <dev/firewire/firewire_phy.h>
80 static char dbcode[16][0x10]={"OUTM", "OUTL","INPM","INPL",
81 "STOR","LOAD","NOP ","STOP",};
83 static char dbkey[8][0x10]={"ST0", "ST1","ST2","ST3",
84 "UNDEF","REG","SYS","DEV"};
85 static char dbcond[4][0x10]={"NEV","C=1", "C=0", "ALL"};
86 char fwohcicode[32][0x20]={
87 "No stat","Undef","long","miss Ack err",
88 "underrun","overrun","desc err", "data read err",
89 "data write err","bus reset","timeout","tcode err",
90 "Undef","Undef","unknown event","flushed",
91 "Undef","ack complete","ack pend","Undef",
92 "ack busy_X","ack busy_A","ack busy_B","Undef",
93 "Undef","Undef","Undef","ack tardy",
94 "Undef","ack data_err","ack type_err",""};
97 extern char *linkspeed[];
98 u_int32_t tagbit[4] = { 1 << 28, 1 << 29, 1 << 30, 1 << 31};
100 static struct tcode_info tinfo[] = {
101 /* hdr_len block flag*/
102 /* 0 WREQQ */ {16, FWTI_REQ | FWTI_TLABEL},
103 /* 1 WREQB */ {16, FWTI_REQ | FWTI_TLABEL | FWTI_BLOCK_ASY},
104 /* 2 WRES */ {12, FWTI_RES},
106 /* 4 RREQQ */ {12, FWTI_REQ | FWTI_TLABEL},
107 /* 5 RREQB */ {16, FWTI_REQ | FWTI_TLABEL},
108 /* 6 RRESQ */ {16, FWTI_RES},
109 /* 7 RRESB */ {16, FWTI_RES | FWTI_BLOCK_ASY},
110 /* 8 CYCS */ { 0, 0},
111 /* 9 LREQ */ {16, FWTI_REQ | FWTI_TLABEL | FWTI_BLOCK_ASY},
112 /* a STREAM */ { 4, FWTI_REQ | FWTI_BLOCK_STR},
113 /* b LRES */ {16, FWTI_RES | FWTI_BLOCK_ASY},
116 /* e PHY */ {12, FWTI_REQ},
120 #define OHCI_WRITE_SIGMASK 0xffff0000
121 #define OHCI_READ_SIGMASK 0xffff0000
123 #define OWRITE(sc, r, x) bus_space_write_4((sc)->bst, (sc)->bsh, (r), (x))
124 #define OREAD(sc, r) bus_space_read_4((sc)->bst, (sc)->bsh, (r))
126 static void fwohci_ibr (struct firewire_comm *);
127 static void fwohci_db_init (struct fwohci_softc *, struct fwohci_dbch *);
128 static void fwohci_db_free (struct fwohci_dbch *);
129 static void fwohci_arcv (struct fwohci_softc *, struct fwohci_dbch *, int);
130 static void fwohci_txd (struct fwohci_softc *, struct fwohci_dbch *);
131 static void fwohci_start_atq (struct firewire_comm *);
132 static void fwohci_start_ats (struct firewire_comm *);
133 static void fwohci_start (struct fwohci_softc *, struct fwohci_dbch *);
134 static u_int32_t fwphy_wrdata ( struct fwohci_softc *, u_int32_t, u_int32_t);
135 static u_int32_t fwphy_rddata ( struct fwohci_softc *, u_int32_t);
136 static int fwohci_rx_enable (struct fwohci_softc *, struct fwohci_dbch *);
137 static int fwohci_tx_enable (struct fwohci_softc *, struct fwohci_dbch *);
138 static int fwohci_irx_enable (struct firewire_comm *, int);
139 static int fwohci_irx_disable (struct firewire_comm *, int);
140 #if BYTE_ORDER == BIG_ENDIAN
141 static void fwohci_irx_post (struct firewire_comm *, u_int32_t *);
143 static int fwohci_itxbuf_enable (struct firewire_comm *, int);
144 static int fwohci_itx_disable (struct firewire_comm *, int);
145 static void fwohci_timeout (void *);
146 static void fwohci_set_intr (struct firewire_comm *, int);
148 static int fwohci_add_rx_buf (struct fwohci_dbch *, struct fwohcidb_tr *, int, struct fwdma_alloc *);
149 static int fwohci_add_tx_buf (struct fwohci_dbch *, struct fwohcidb_tr *, int);
150 static void dump_db (struct fwohci_softc *, u_int32_t);
151 static void print_db (struct fwohcidb_tr *, struct fwohcidb *, u_int32_t , u_int32_t);
152 static void dump_dma (struct fwohci_softc *, u_int32_t);
153 static u_int32_t fwohci_cyctimer (struct firewire_comm *);
154 static void fwohci_rbuf_update (struct fwohci_softc *, int);
155 static void fwohci_tbuf_update (struct fwohci_softc *, int);
156 void fwohci_txbufdb (struct fwohci_softc *, int , struct fw_bulkxfer *);
158 static void fwohci_complete(void *, int);
162 * memory allocated for DMA programs
164 #define DMA_PROG_ALLOC (8 * PAGE_SIZE)
166 #define NDB FWMAXQUEUE
168 #define OHCI_VERSION 0x00
169 #define OHCI_ATRETRY 0x08
170 #define OHCI_CROMHDR 0x18
171 #define OHCI_BUS_OPT 0x20
172 #define OHCI_BUSIRMC (1 << 31)
173 #define OHCI_BUSCMC (1 << 30)
174 #define OHCI_BUSISC (1 << 29)
175 #define OHCI_BUSBMC (1 << 28)
176 #define OHCI_BUSPMC (1 << 27)
177 #define OHCI_BUSFNC OHCI_BUSIRMC | OHCI_BUSCMC | OHCI_BUSISC |\
178 OHCI_BUSBMC | OHCI_BUSPMC
180 #define OHCI_EUID_HI 0x24
181 #define OHCI_EUID_LO 0x28
183 #define OHCI_CROMPTR 0x34
184 #define OHCI_HCCCTL 0x50
185 #define OHCI_HCCCTLCLR 0x54
186 #define OHCI_AREQHI 0x100
187 #define OHCI_AREQHICLR 0x104
188 #define OHCI_AREQLO 0x108
189 #define OHCI_AREQLOCLR 0x10c
190 #define OHCI_PREQHI 0x110
191 #define OHCI_PREQHICLR 0x114
192 #define OHCI_PREQLO 0x118
193 #define OHCI_PREQLOCLR 0x11c
194 #define OHCI_PREQUPPER 0x120
196 #define OHCI_SID_BUF 0x64
197 #define OHCI_SID_CNT 0x68
198 #define OHCI_SID_ERR (1 << 31)
199 #define OHCI_SID_CNT_MASK 0xffc
201 #define OHCI_IT_STAT 0x90
202 #define OHCI_IT_STATCLR 0x94
203 #define OHCI_IT_MASK 0x98
204 #define OHCI_IT_MASKCLR 0x9c
206 #define OHCI_IR_STAT 0xa0
207 #define OHCI_IR_STATCLR 0xa4
208 #define OHCI_IR_MASK 0xa8
209 #define OHCI_IR_MASKCLR 0xac
211 #define OHCI_LNKCTL 0xe0
212 #define OHCI_LNKCTLCLR 0xe4
214 #define OHCI_PHYACCESS 0xec
215 #define OHCI_CYCLETIMER 0xf0
217 #define OHCI_DMACTL(off) (off)
218 #define OHCI_DMACTLCLR(off) (off + 4)
219 #define OHCI_DMACMD(off) (off + 0xc)
220 #define OHCI_DMAMATCH(off) (off + 0x10)
222 #define OHCI_ATQOFF 0x180
223 #define OHCI_ATQCTL OHCI_ATQOFF
224 #define OHCI_ATQCTLCLR (OHCI_ATQOFF + 4)
225 #define OHCI_ATQCMD (OHCI_ATQOFF + 0xc)
226 #define OHCI_ATQMATCH (OHCI_ATQOFF + 0x10)
228 #define OHCI_ATSOFF 0x1a0
229 #define OHCI_ATSCTL OHCI_ATSOFF
230 #define OHCI_ATSCTLCLR (OHCI_ATSOFF + 4)
231 #define OHCI_ATSCMD (OHCI_ATSOFF + 0xc)
232 #define OHCI_ATSMATCH (OHCI_ATSOFF + 0x10)
234 #define OHCI_ARQOFF 0x1c0
235 #define OHCI_ARQCTL OHCI_ARQOFF
236 #define OHCI_ARQCTLCLR (OHCI_ARQOFF + 4)
237 #define OHCI_ARQCMD (OHCI_ARQOFF + 0xc)
238 #define OHCI_ARQMATCH (OHCI_ARQOFF + 0x10)
240 #define OHCI_ARSOFF 0x1e0
241 #define OHCI_ARSCTL OHCI_ARSOFF
242 #define OHCI_ARSCTLCLR (OHCI_ARSOFF + 4)
243 #define OHCI_ARSCMD (OHCI_ARSOFF + 0xc)
244 #define OHCI_ARSMATCH (OHCI_ARSOFF + 0x10)
246 #define OHCI_ITOFF(CH) (0x200 + 0x10 * (CH))
247 #define OHCI_ITCTL(CH) (OHCI_ITOFF(CH))
248 #define OHCI_ITCTLCLR(CH) (OHCI_ITOFF(CH) + 4)
249 #define OHCI_ITCMD(CH) (OHCI_ITOFF(CH) + 0xc)
251 #define OHCI_IROFF(CH) (0x400 + 0x20 * (CH))
252 #define OHCI_IRCTL(CH) (OHCI_IROFF(CH))
253 #define OHCI_IRCTLCLR(CH) (OHCI_IROFF(CH) + 4)
254 #define OHCI_IRCMD(CH) (OHCI_IROFF(CH) + 0xc)
255 #define OHCI_IRMATCH(CH) (OHCI_IROFF(CH) + 0x10)
257 d_ioctl_t fwohci_ioctl;
260 * Communication with PHY device
263 fwphy_wrdata( struct fwohci_softc *sc, u_int32_t addr, u_int32_t data)
270 fun = (PHYDEV_WRCMD | (addr << PHYDEV_REGADDR) | (data << PHYDEV_WRDATA));
271 OWRITE(sc, OHCI_PHYACCESS, fun);
274 return(fwphy_rddata( sc, addr));
278 fwohci_set_bus_manager(struct firewire_comm *fc, u_int node)
280 struct fwohci_softc *sc = (struct fwohci_softc *)fc;
284 #define OHCI_CSR_DATA 0x0c
285 #define OHCI_CSR_COMP 0x10
286 #define OHCI_CSR_CONT 0x14
287 #define OHCI_BUS_MANAGER_ID 0
289 OWRITE(sc, OHCI_CSR_DATA, node);
290 OWRITE(sc, OHCI_CSR_COMP, 0x3f);
291 OWRITE(sc, OHCI_CSR_CONT, OHCI_BUS_MANAGER_ID);
292 for (i = 0; !(OREAD(sc, OHCI_CSR_CONT) & (1<<31)) && (i < 1000); i++)
294 bm = OREAD(sc, OHCI_CSR_DATA);
295 if((bm & 0x3f) == 0x3f)
298 device_printf(sc->fc.dev,
299 "fw_set_bus_manager: %d->%d (loop=%d)\n", bm, node, i);
305 fwphy_rddata(struct fwohci_softc *sc, u_int addr)
311 #define MAX_RETRY 100
313 OWRITE(sc, FWOHCI_INTSTATCLR, OHCI_INT_REG_FAIL);
314 fun = PHYDEV_RDCMD | (addr << PHYDEV_REGADDR);
315 OWRITE(sc, OHCI_PHYACCESS, fun);
316 for ( i = 0 ; i < MAX_RETRY ; i ++ ){
317 fun = OREAD(sc, OHCI_PHYACCESS);
318 if ((fun & PHYDEV_RDCMD) == 0 && (fun & PHYDEV_RDDONE) != 0)
324 device_printf(sc->fc.dev, "phy read failed(1).\n");
325 if (++retry < MAX_RETRY) {
330 /* Make sure that SCLK is started */
331 stat = OREAD(sc, FWOHCI_INTSTAT);
332 if ((stat & OHCI_INT_REG_FAIL) != 0 ||
333 ((fun >> PHYDEV_REGADDR) & 0xf) != addr) {
335 device_printf(sc->fc.dev, "phy read failed(2).\n");
336 if (++retry < MAX_RETRY) {
341 if (bootverbose || retry >= MAX_RETRY)
342 device_printf(sc->fc.dev,
343 "fwphy_rddata: 0x%x loop=%d, retry=%d\n", addr, i, retry);
345 return((fun >> PHYDEV_RDDATA )& 0xff);
347 /* Device specific ioctl. */
349 fwohci_ioctl (dev_t dev, u_long cmd, caddr_t data, int flag, fw_proc *td)
351 struct firewire_softc *sc;
352 struct fwohci_softc *fc;
353 int unit = DEV2UNIT(dev);
355 struct fw_reg_req_t *reg = (struct fw_reg_req_t *) data;
356 u_int32_t *dmach = (u_int32_t *) data;
358 sc = devclass_get_softc(firewire_devclass, unit);
362 fc = (struct fwohci_softc *)sc->fc;
369 #define OHCI_MAX_REG 0x800
370 if(reg->addr <= OHCI_MAX_REG){
371 OWRITE(fc, reg->addr, reg->data);
372 reg->data = OREAD(fc, reg->addr);
378 if(reg->addr <= OHCI_MAX_REG){
379 reg->data = OREAD(fc, reg->addr);
384 /* Read DMA descriptors for debug */
386 if(*dmach <= OHCI_MAX_DMA_CH ){
387 dump_dma(fc, *dmach);
393 /* Read/Write Phy registers */
394 #define OHCI_MAX_PHY_REG 0xf
395 case FWOHCI_RDPHYREG:
396 if (reg->addr <= OHCI_MAX_PHY_REG)
397 reg->data = fwphy_rddata(fc, reg->addr);
401 case FWOHCI_WRPHYREG:
402 if (reg->addr <= OHCI_MAX_PHY_REG)
403 reg->data = fwphy_wrdata(fc, reg->addr, reg->data);
415 fwohci_probe_phy(struct fwohci_softc *sc, device_t dev)
420 * probe PHY parameters
421 * 0. to prove PHY version, whether compliance of 1394a.
422 * 1. to probe maximum speed supported by the PHY and
423 * number of port supported by core-logic.
424 * It is not actually available port on your PC .
426 OWRITE(sc, OHCI_HCCCTL, OHCI_HCC_LPS);
427 reg = fwphy_rddata(sc, FW_PHY_SPD_REG);
429 if((reg >> 5) != 7 ){
430 sc->fc.mode &= ~FWPHYASYST;
431 sc->fc.nport = reg & FW_PHY_NP;
432 sc->fc.speed = reg & FW_PHY_SPD >> 6;
433 if (sc->fc.speed > MAX_SPEED) {
434 device_printf(dev, "invalid speed %d (fixed to %d).\n",
435 sc->fc.speed, MAX_SPEED);
436 sc->fc.speed = MAX_SPEED;
439 "Phy 1394 only %s, %d ports.\n",
440 linkspeed[sc->fc.speed], sc->fc.nport);
442 reg2 = fwphy_rddata(sc, FW_PHY_ESPD_REG);
443 sc->fc.mode |= FWPHYASYST;
444 sc->fc.nport = reg & FW_PHY_NP;
445 sc->fc.speed = (reg2 & FW_PHY_ESPD) >> 5;
446 if (sc->fc.speed > MAX_SPEED) {
447 device_printf(dev, "invalid speed %d (fixed to %d).\n",
448 sc->fc.speed, MAX_SPEED);
449 sc->fc.speed = MAX_SPEED;
452 "Phy 1394a available %s, %d ports.\n",
453 linkspeed[sc->fc.speed], sc->fc.nport);
455 /* check programPhyEnable */
456 reg2 = fwphy_rddata(sc, 5);
458 if (e1394a && (OREAD(sc, OHCI_HCCCTL) & OHCI_HCC_PRPHY)) {
459 #else /* XXX force to enable 1394a */
464 "Enable 1394a Enhancements\n");
467 /* set aPhyEnhanceEnable */
468 OWRITE(sc, OHCI_HCCCTL, OHCI_HCC_PHYEN);
469 OWRITE(sc, OHCI_HCCCTLCLR, OHCI_HCC_PRPHY);
474 reg2 = fwphy_wrdata(sc, 5, reg2);
477 reg = fwphy_rddata(sc, FW_PHY_SPD_REG);
478 if((reg >> 5) == 7 ){
479 reg = fwphy_rddata(sc, 4);
481 fwphy_wrdata(sc, 4, reg);
482 reg = fwphy_rddata(sc, 4);
489 fwohci_reset(struct fwohci_softc *sc, device_t dev)
491 int i, max_rec, speed;
493 struct fwohcidb_tr *db_tr;
495 /* Disable interrupt */
496 OWRITE(sc, FWOHCI_INTMASKCLR, ~0);
498 /* Now stopping all DMA channel */
499 OWRITE(sc, OHCI_ARQCTLCLR, OHCI_CNTL_DMA_RUN);
500 OWRITE(sc, OHCI_ARSCTLCLR, OHCI_CNTL_DMA_RUN);
501 OWRITE(sc, OHCI_ATQCTLCLR, OHCI_CNTL_DMA_RUN);
502 OWRITE(sc, OHCI_ATSCTLCLR, OHCI_CNTL_DMA_RUN);
504 OWRITE(sc, OHCI_IR_MASKCLR, ~0);
505 for( i = 0 ; i < sc->fc.nisodma ; i ++ ){
506 OWRITE(sc, OHCI_IRCTLCLR(i), OHCI_CNTL_DMA_RUN);
507 OWRITE(sc, OHCI_ITCTLCLR(i), OHCI_CNTL_DMA_RUN);
510 /* FLUSH FIFO and reset Transmitter/Reciever */
511 OWRITE(sc, OHCI_HCCCTL, OHCI_HCC_RESET);
513 device_printf(dev, "resetting OHCI...");
515 while(OREAD(sc, OHCI_HCCCTL) & OHCI_HCC_RESET) {
516 if (i++ > 100) break;
520 printf("done (loop=%d)\n", i);
523 fwohci_probe_phy(sc, dev);
526 reg = OREAD(sc, OHCI_BUS_OPT);
527 reg2 = reg | OHCI_BUSFNC;
528 max_rec = (reg & 0x0000f000) >> 12;
529 speed = (reg & 0x00000007);
530 device_printf(dev, "Link %s, max_rec %d bytes.\n",
531 linkspeed[speed], MAXREC(max_rec));
532 /* XXX fix max_rec */
533 sc->fc.maxrec = sc->fc.speed + 8;
534 if (max_rec != sc->fc.maxrec) {
535 reg2 = (reg2 & 0xffff0fff) | (sc->fc.maxrec << 12);
536 device_printf(dev, "max_rec %d -> %d\n",
537 MAXREC(max_rec), MAXREC(sc->fc.maxrec));
540 device_printf(dev, "BUS_OPT 0x%x -> 0x%x\n", reg, reg2);
541 OWRITE(sc, OHCI_BUS_OPT, reg2);
543 /* Initialize registers */
544 OWRITE(sc, OHCI_CROMHDR, sc->fc.config_rom[0]);
545 OWRITE(sc, OHCI_CROMPTR, sc->crom_dma.bus_addr);
546 OWRITE(sc, OHCI_HCCCTLCLR, OHCI_HCC_BIGEND);
547 OWRITE(sc, OHCI_HCCCTL, OHCI_HCC_POSTWR);
548 OWRITE(sc, OHCI_SID_BUF, sc->sid_dma.bus_addr);
549 OWRITE(sc, OHCI_LNKCTL, OHCI_CNTL_SID);
552 OWRITE(sc, OHCI_HCCCTL, OHCI_HCC_LINKEN);
554 /* Force to start async RX DMA */
555 sc->arrq.xferq.flag &= ~FWXFERQ_RUNNING;
556 sc->arrs.xferq.flag &= ~FWXFERQ_RUNNING;
557 fwohci_rx_enable(sc, &sc->arrq);
558 fwohci_rx_enable(sc, &sc->arrs);
560 /* Initialize async TX */
561 OWRITE(sc, OHCI_ATQCTLCLR, OHCI_CNTL_DMA_RUN | OHCI_CNTL_DMA_DEAD);
562 OWRITE(sc, OHCI_ATSCTLCLR, OHCI_CNTL_DMA_RUN | OHCI_CNTL_DMA_DEAD);
565 OWRITE(sc, FWOHCI_RETRY,
566 /* CycleLimit PhyRespRetries ATRespRetries ATReqRetries */
567 (0xffff << 16 ) | (0x0f << 8) | (0x0f << 4) | 0x0f) ;
569 sc->atrq.top = STAILQ_FIRST(&sc->atrq.db_trq);
570 sc->atrs.top = STAILQ_FIRST(&sc->atrs.db_trq);
571 sc->atrq.bottom = sc->atrq.top;
572 sc->atrs.bottom = sc->atrs.top;
574 for( i = 0, db_tr = sc->atrq.top; i < sc->atrq.ndb ;
575 i ++, db_tr = STAILQ_NEXT(db_tr, link)){
578 for( i = 0, db_tr = sc->atrs.top; i < sc->atrs.ndb ;
579 i ++, db_tr = STAILQ_NEXT(db_tr, link)){
584 /* Enable interrupt */
585 OWRITE(sc, FWOHCI_INTMASK,
586 OHCI_INT_ERR | OHCI_INT_PHY_SID
587 | OHCI_INT_DMA_ATRQ | OHCI_INT_DMA_ATRS
588 | OHCI_INT_DMA_PRRQ | OHCI_INT_DMA_PRRS
589 | OHCI_INT_PHY_BUS_R | OHCI_INT_PW_ERR);
590 fwohci_set_intr(&sc->fc, 1);
595 fwohci_init(struct fwohci_softc *sc, device_t dev)
602 TASK_INIT(&sc->fwohci_task_complete, 0, fwohci_complete, sc);
606 reg = OREAD(sc, OHCI_VERSION);
607 mver = (reg >> 16) & 0xff;
608 device_printf(dev, "OHCI version %x.%x (ROM=%d)\n",
609 mver, reg & 0xff, (reg>>24) & 1);
610 if (mver < 1 || mver > 9) {
611 device_printf(dev, "invalid OHCI version\n");
615 /* Available Isochrounous DMA channel probe */
616 OWRITE(sc, OHCI_IT_MASK, 0xffffffff);
617 OWRITE(sc, OHCI_IR_MASK, 0xffffffff);
618 reg = OREAD(sc, OHCI_IT_MASK) & OREAD(sc, OHCI_IR_MASK);
619 OWRITE(sc, OHCI_IT_MASKCLR, 0xffffffff);
620 OWRITE(sc, OHCI_IR_MASKCLR, 0xffffffff);
621 for (i = 0; i < 0x20; i++)
622 if ((reg & (1 << i)) == 0)
625 device_printf(dev, "No. of Isochronous channel is %d.\n", i);
629 sc->fc.arq = &sc->arrq.xferq;
630 sc->fc.ars = &sc->arrs.xferq;
631 sc->fc.atq = &sc->atrq.xferq;
632 sc->fc.ats = &sc->atrs.xferq;
634 sc->arrq.xferq.psize = roundup2(FWPMAX_S400, PAGE_SIZE);
635 sc->arrs.xferq.psize = roundup2(FWPMAX_S400, PAGE_SIZE);
636 sc->atrq.xferq.psize = roundup2(FWPMAX_S400, PAGE_SIZE);
637 sc->atrs.xferq.psize = roundup2(FWPMAX_S400, PAGE_SIZE);
639 sc->arrq.xferq.start = NULL;
640 sc->arrs.xferq.start = NULL;
641 sc->atrq.xferq.start = fwohci_start_atq;
642 sc->atrs.xferq.start = fwohci_start_ats;
644 sc->arrq.xferq.buf = NULL;
645 sc->arrs.xferq.buf = NULL;
646 sc->atrq.xferq.buf = NULL;
647 sc->atrs.xferq.buf = NULL;
649 sc->arrq.xferq.dmach = -1;
650 sc->arrs.xferq.dmach = -1;
651 sc->atrq.xferq.dmach = -1;
652 sc->atrs.xferq.dmach = -1;
656 sc->atrq.ndesc = 8; /* equal to maximum of mbuf chains */
660 sc->arrs.ndb = NDB / 2;
662 sc->atrs.ndb = NDB / 2;
664 for( i = 0 ; i < sc->fc.nisodma ; i ++ ){
665 sc->fc.it[i] = &sc->it[i].xferq;
666 sc->fc.ir[i] = &sc->ir[i].xferq;
667 sc->it[i].xferq.dmach = i;
668 sc->ir[i].xferq.dmach = i;
673 sc->fc.tcode = tinfo;
676 sc->fc.config_rom = fwdma_malloc(&sc->fc, CROMSIZE, CROMSIZE,
677 &sc->crom_dma, BUS_DMA_WAITOK);
678 if(sc->fc.config_rom == NULL){
679 device_printf(dev, "config_rom alloc failed.");
684 bzero(&sc->fc.config_rom[0], CROMSIZE);
685 sc->fc.config_rom[1] = 0x31333934;
686 sc->fc.config_rom[2] = 0xf000a002;
687 sc->fc.config_rom[3] = OREAD(sc, OHCI_EUID_HI);
688 sc->fc.config_rom[4] = OREAD(sc, OHCI_EUID_LO);
689 sc->fc.config_rom[5] = 0;
690 sc->fc.config_rom[0] = (4 << 24) | (5 << 16);
692 sc->fc.config_rom[0] |= fw_crc16(&sc->fc.config_rom[1], 5*4);
696 /* SID recieve buffer must allign 2^11 */
697 #define OHCI_SIDSIZE (1 << 11)
698 sc->sid_buf = fwdma_malloc(&sc->fc, OHCI_SIDSIZE, OHCI_SIDSIZE,
699 &sc->sid_dma, BUS_DMA_WAITOK);
700 if (sc->sid_buf == NULL) {
701 device_printf(dev, "sid_buf alloc failed.");
705 fwdma_malloc(&sc->fc, sizeof(u_int32_t), sizeof(u_int32_t),
706 &sc->dummy_dma, BUS_DMA_WAITOK);
708 if (sc->dummy_dma.v_addr == NULL) {
709 device_printf(dev, "dummy_dma alloc failed.");
713 fwohci_db_init(sc, &sc->arrq);
714 if ((sc->arrq.flags & FWOHCI_DBCH_INIT) == 0)
717 fwohci_db_init(sc, &sc->arrs);
718 if ((sc->arrs.flags & FWOHCI_DBCH_INIT) == 0)
721 fwohci_db_init(sc, &sc->atrq);
722 if ((sc->atrq.flags & FWOHCI_DBCH_INIT) == 0)
725 fwohci_db_init(sc, &sc->atrs);
726 if ((sc->atrs.flags & FWOHCI_DBCH_INIT) == 0)
729 sc->fc.eui.hi = OREAD(sc, FWOHCIGUID_H);
730 sc->fc.eui.lo = OREAD(sc, FWOHCIGUID_L);
731 for( i = 0 ; i < 8 ; i ++)
732 ui[i] = FW_EUI64_BYTE(&sc->fc.eui,i);
733 device_printf(dev, "EUI64 %02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x\n",
734 ui[0], ui[1], ui[2], ui[3], ui[4], ui[5], ui[6], ui[7]);
736 sc->fc.ioctl = fwohci_ioctl;
737 sc->fc.cyctimer = fwohci_cyctimer;
738 sc->fc.set_bmr = fwohci_set_bus_manager;
739 sc->fc.ibr = fwohci_ibr;
740 sc->fc.irx_enable = fwohci_irx_enable;
741 sc->fc.irx_disable = fwohci_irx_disable;
743 sc->fc.itx_enable = fwohci_itxbuf_enable;
744 sc->fc.itx_disable = fwohci_itx_disable;
745 #if BYTE_ORDER == BIG_ENDIAN
746 sc->fc.irx_post = fwohci_irx_post;
748 sc->fc.irx_post = NULL;
750 sc->fc.itx_post = NULL;
751 sc->fc.timeout = fwohci_timeout;
752 sc->fc.poll = fwohci_poll;
753 sc->fc.set_intr = fwohci_set_intr;
755 sc->intmask = sc->irstat = sc->itstat = 0;
758 fwohci_reset(sc, dev);
764 fwohci_timeout(void *arg)
766 struct fwohci_softc *sc;
768 sc = (struct fwohci_softc *)arg;
772 fwohci_cyctimer(struct firewire_comm *fc)
774 struct fwohci_softc *sc = (struct fwohci_softc *)fc;
775 return(OREAD(sc, OHCI_CYCLETIMER));
779 fwohci_detach(struct fwohci_softc *sc, device_t dev)
783 if (sc->sid_buf != NULL)
784 fwdma_free(&sc->fc, &sc->sid_dma);
785 if (sc->fc.config_rom != NULL)
786 fwdma_free(&sc->fc, &sc->crom_dma);
788 fwohci_db_free(&sc->arrq);
789 fwohci_db_free(&sc->arrs);
791 fwohci_db_free(&sc->atrq);
792 fwohci_db_free(&sc->atrs);
794 for( i = 0 ; i < sc->fc.nisodma ; i ++ ){
795 fwohci_db_free(&sc->it[i]);
796 fwohci_db_free(&sc->ir[i]);
802 #define LAST_DB(dbtr, db) do { \
803 struct fwohcidb_tr *_dbtr = (dbtr); \
804 int _cnt = _dbtr->dbcnt; \
805 db = &_dbtr->db[ (_cnt > 2) ? (_cnt -1) : 0]; \
809 fwohci_execute_db(void *arg, bus_dma_segment_t *segs, int nseg, int error)
811 struct fwohcidb_tr *db_tr;
813 bus_dma_segment_t *s;
816 db_tr = (struct fwohcidb_tr *)arg;
817 db = &db_tr->db[db_tr->dbcnt];
819 if (firewire_debug || error != EFBIG)
820 printf("fwohci_execute_db: error=%d\n", error);
823 for (i = 0; i < nseg; i++) {
825 FWOHCI_DMA_WRITE(db->db.desc.addr, s->ds_addr);
826 FWOHCI_DMA_WRITE(db->db.desc.cmd, s->ds_len);
827 FWOHCI_DMA_WRITE(db->db.desc.res, 0);
834 fwohci_execute_db2(void *arg, bus_dma_segment_t *segs, int nseg,
835 bus_size_t size, int error)
837 fwohci_execute_db(arg, segs, nseg, error);
841 fwohci_start(struct fwohci_softc *sc, struct fwohci_dbch *dbch)
844 int tcode, hdr_len, pl_off;
847 struct fw_xfer *xfer;
849 struct fwohci_txpkthdr *ohcifp;
850 struct fwohcidb_tr *db_tr;
853 struct tcode_info *info;
854 static int maxdesc=0;
856 if(&sc->atrq == dbch){
858 }else if(&sc->atrs == dbch){
864 if (dbch->flags & FWOHCI_DBCH_FULL)
870 xfer = STAILQ_FIRST(&dbch->xferq.q);
874 if(dbch->xferq.queued == 0 ){
875 device_printf(sc->fc.dev, "TX queue empty\n");
877 STAILQ_REMOVE_HEAD(&dbch->xferq.q, link);
879 xfer->state = FWXF_START;
881 fp = &xfer->send.hdr;
882 tcode = fp->mode.common.tcode;
884 ohcifp = (struct fwohci_txpkthdr *) db_tr->db[1].db.immed;
885 info = &tinfo[tcode];
886 hdr_len = pl_off = info->hdr_len;
888 ld = &ohcifp->mode.ld[0];
889 ld[0] = ld[1] = ld[2] = ld[3] = 0;
890 for( i = 0 ; i < pl_off ; i+= 4)
891 ld[i/4] = fp->mode.ld[i/4];
893 ohcifp->mode.common.spd = xfer->send.spd & 0x7;
894 if (tcode == FWTCODE_STREAM ){
896 ohcifp->mode.stream.len = fp->mode.stream.len;
897 } else if (tcode == FWTCODE_PHY) {
899 ld[1] = fp->mode.ld[1];
900 ld[2] = fp->mode.ld[2];
901 ohcifp->mode.common.spd = 0;
902 ohcifp->mode.common.tcode = FWOHCITCODE_PHY;
904 ohcifp->mode.asycomm.dst = fp->mode.hdr.dst;
905 ohcifp->mode.asycomm.srcbus = OHCI_ASYSRCBUS;
906 ohcifp->mode.asycomm.tlrt |= FWRETRY_X;
909 FWOHCI_DMA_WRITE(db->db.desc.cmd,
910 OHCI_OUTPUT_MORE | OHCI_KEY_ST2 | hdr_len);
911 FWOHCI_DMA_WRITE(db->db.desc.addr, 0);
912 FWOHCI_DMA_WRITE(db->db.desc.res, 0);
913 /* Specify bound timer of asy. responce */
914 if(&sc->atrs == dbch){
915 FWOHCI_DMA_WRITE(db->db.desc.res,
916 (OREAD(sc, OHCI_CYCLETIMER) >> 12) + (1 << 13));
918 #if BYTE_ORDER == BIG_ENDIAN
919 if (tcode == FWTCODE_WREQQ || tcode == FWTCODE_RRESQ)
921 for (i = 0; i < hdr_len/4; i ++)
922 FWOHCI_DMA_WRITE(ld[i], ld[i]);
927 db = &db_tr->db[db_tr->dbcnt];
928 if (xfer->send.pay_len > 0) {
931 if (xfer->mbuf == NULL) {
932 err = bus_dmamap_load(dbch->dmat, db_tr->dma_map,
933 &xfer->send.payload[0], xfer->send.pay_len,
934 fwohci_execute_db, db_tr,
937 /* XXX we can handle only 6 (=8-2) mbuf chains */
938 err = bus_dmamap_load_mbuf(dbch->dmat, db_tr->dma_map,
940 fwohci_execute_db2, db_tr,
946 device_printf(sc->fc.dev, "EFBIG.\n");
947 m0 = m_getcl(M_DONTWAIT, MT_DATA, M_PKTHDR);
949 m_copydata(xfer->mbuf, 0,
950 xfer->mbuf->m_pkthdr.len,
952 m0->m_len = m0->m_pkthdr.len =
953 xfer->mbuf->m_pkthdr.len;
958 device_printf(sc->fc.dev, "m_getcl failed.\n");
962 printf("dmamap_load: err=%d\n", err);
963 bus_dmamap_sync(dbch->dmat, db_tr->dma_map,
964 BUS_DMASYNC_PREWRITE);
965 #if 0 /* OHCI_OUTPUT_MODE == 0 */
966 for (i = 2; i < db_tr->dbcnt; i++)
967 FWOHCI_DMA_SET(db_tr->db[i].db.desc.cmd,
971 if (maxdesc < db_tr->dbcnt) {
972 maxdesc = db_tr->dbcnt;
974 device_printf(sc->fc.dev, "maxdesc: %d\n", maxdesc);
978 FWOHCI_DMA_SET(db->db.desc.cmd,
979 OHCI_OUTPUT_LAST | OHCI_INTERRUPT_ALWAYS | OHCI_BRANCH_ALWAYS);
980 FWOHCI_DMA_WRITE(db->db.desc.depend,
981 STAILQ_NEXT(db_tr, link)->bus_addr);
984 fsegment = db_tr->dbcnt;
985 if (dbch->pdb_tr != NULL) {
986 LAST_DB(dbch->pdb_tr, db);
987 FWOHCI_DMA_SET(db->db.desc.depend, db_tr->dbcnt);
989 dbch->pdb_tr = db_tr;
990 db_tr = STAILQ_NEXT(db_tr, link);
991 if(db_tr != dbch->bottom){
994 device_printf(sc->fc.dev, "fwohci_start: lack of db_trq\n");
995 dbch->flags |= FWOHCI_DBCH_FULL;
999 fwdma_sync_multiseg_all(dbch->am, BUS_DMASYNC_PREREAD);
1000 fwdma_sync_multiseg_all(dbch->am, BUS_DMASYNC_PREWRITE);
1002 if(dbch->xferq.flag & FWXFERQ_RUNNING) {
1003 OWRITE(sc, OHCI_DMACTL(off), OHCI_CNTL_DMA_WAKE);
1006 device_printf(sc->fc.dev, "start AT DMA status=%x\n",
1007 OREAD(sc, OHCI_DMACTL(off)));
1008 OWRITE(sc, OHCI_DMACMD(off), dbch->top->bus_addr | fsegment);
1009 OWRITE(sc, OHCI_DMACTL(off), OHCI_CNTL_DMA_RUN);
1010 dbch->xferq.flag |= FWXFERQ_RUNNING;
1019 fwohci_start_atq(struct firewire_comm *fc)
1021 struct fwohci_softc *sc = (struct fwohci_softc *)fc;
1022 fwohci_start( sc, &(sc->atrq));
1027 fwohci_start_ats(struct firewire_comm *fc)
1029 struct fwohci_softc *sc = (struct fwohci_softc *)fc;
1030 fwohci_start( sc, &(sc->atrs));
1035 fwohci_txd(struct fwohci_softc *sc, struct fwohci_dbch *dbch)
1038 struct fwohcidb_tr *tr;
1039 struct fwohcidb *db;
1040 struct fw_xfer *xfer;
1044 struct firewire_comm *fc = (struct firewire_comm *)sc;
1046 if(&sc->atrq == dbch){
1049 }else if(&sc->atrs == dbch){
1058 fwdma_sync_multiseg_all(dbch->am, BUS_DMASYNC_POSTREAD);
1059 fwdma_sync_multiseg_all(dbch->am, BUS_DMASYNC_POSTWRITE);
1060 while(dbch->xferq.queued > 0){
1062 status = FWOHCI_DMA_READ(db->db.desc.res) >> OHCI_STATUS_SHIFT;
1063 if(!(status & OHCI_CNTL_DMA_ACTIVE)){
1064 if (fc->status != FWBUSRESET)
1065 /* maybe out of order?? */
1068 bus_dmamap_sync(dbch->dmat, tr->dma_map,
1069 BUS_DMASYNC_POSTWRITE);
1070 bus_dmamap_unload(dbch->dmat, tr->dma_map);
1075 if(status & OHCI_CNTL_DMA_DEAD) {
1077 OWRITE(sc, OHCI_DMACTLCLR(off), OHCI_CNTL_DMA_RUN);
1078 device_printf(sc->fc.dev, "force reset AT FIFO\n");
1079 OWRITE(sc, OHCI_HCCCTLCLR, OHCI_HCC_LINKEN);
1080 OWRITE(sc, OHCI_HCCCTL, OHCI_HCC_LPS | OHCI_HCC_LINKEN);
1081 OWRITE(sc, OHCI_DMACTLCLR(off), OHCI_CNTL_DMA_RUN);
1083 stat = status & FWOHCIEV_MASK;
1085 case FWOHCIEV_ACKPEND:
1086 case FWOHCIEV_ACKCOMPL:
1089 case FWOHCIEV_ACKBSA:
1090 case FWOHCIEV_ACKBSB:
1091 case FWOHCIEV_ACKBSX:
1092 device_printf(sc->fc.dev, "txd err=%2x %s\n", stat, fwohcicode[stat]);
1095 case FWOHCIEV_FLUSHED:
1096 case FWOHCIEV_ACKTARD:
1097 device_printf(sc->fc.dev, "txd err=%2x %s\n", stat, fwohcicode[stat]);
1100 case FWOHCIEV_MISSACK:
1101 case FWOHCIEV_UNDRRUN:
1102 case FWOHCIEV_OVRRUN:
1103 case FWOHCIEV_DESCERR:
1104 case FWOHCIEV_DTRDERR:
1105 case FWOHCIEV_TIMEOUT:
1106 case FWOHCIEV_TCODERR:
1107 case FWOHCIEV_UNKNOWN:
1108 case FWOHCIEV_ACKDERR:
1109 case FWOHCIEV_ACKTERR:
1111 device_printf(sc->fc.dev, "txd err=%2x %s\n",
1112 stat, fwohcicode[stat]);
1116 if (tr->xfer != NULL) {
1118 if (xfer->state == FWXF_RCVD) {
1121 printf("already rcvd\n");
1125 xfer->state = FWXF_SENT;
1126 if (err == EBUSY && fc->status != FWBUSRESET) {
1127 xfer->state = FWXF_BUSY;
1129 if (xfer->retry_req != NULL)
1130 xfer->retry_req(xfer);
1132 xfer->recv.pay_len = 0;
1135 } else if (stat != FWOHCIEV_ACKPEND) {
1136 if (stat != FWOHCIEV_ACKCOMPL)
1137 xfer->state = FWXF_SENTERR;
1139 xfer->recv.pay_len = 0;
1144 * The watchdog timer takes care of split
1145 * transcation timeout for ACKPEND case.
1148 printf("this shouldn't happen\n");
1150 dbch->xferq.queued --;
1154 tr = STAILQ_NEXT(tr, link);
1156 if (dbch->bottom == dbch->top) {
1157 /* we reaches the end of context program */
1158 if (firewire_debug && dbch->xferq.queued > 0)
1159 printf("queued > 0\n");
1164 if ((dbch->flags & FWOHCI_DBCH_FULL) && packets > 0) {
1165 printf("make free slot\n");
1166 dbch->flags &= ~FWOHCI_DBCH_FULL;
1167 fwohci_start(sc, dbch);
1173 fwohci_db_free(struct fwohci_dbch *dbch)
1175 struct fwohcidb_tr *db_tr;
1178 if ((dbch->flags & FWOHCI_DBCH_INIT) == 0)
1181 for(db_tr = STAILQ_FIRST(&dbch->db_trq), idb = 0; idb < dbch->ndb;
1182 db_tr = STAILQ_NEXT(db_tr, link), idb++){
1183 if ((dbch->xferq.flag & FWXFERQ_EXTBUF) == 0 &&
1184 db_tr->buf != NULL) {
1185 fwdma_free_size(dbch->dmat, db_tr->dma_map,
1186 db_tr->buf, dbch->xferq.psize);
1188 } else if (db_tr->dma_map != NULL)
1189 bus_dmamap_destroy(dbch->dmat, db_tr->dma_map);
1192 db_tr = STAILQ_FIRST(&dbch->db_trq);
1193 fwdma_free_multiseg(dbch->am);
1195 STAILQ_INIT(&dbch->db_trq);
1196 dbch->flags &= ~FWOHCI_DBCH_INIT;
1200 fwohci_db_init(struct fwohci_softc *sc, struct fwohci_dbch *dbch)
1203 struct fwohcidb_tr *db_tr;
1205 if ((dbch->flags & FWOHCI_DBCH_INIT) != 0)
1208 /* create dma_tag for buffers */
1209 #define MAX_REQCOUNT 0xffff
1210 if (bus_dma_tag_create(/*parent*/ sc->fc.dmat,
1211 /*alignment*/ 1, /*boundary*/ 0,
1212 /*lowaddr*/ BUS_SPACE_MAXADDR_32BIT,
1213 /*highaddr*/ BUS_SPACE_MAXADDR,
1214 /*filter*/NULL, /*filterarg*/NULL,
1215 /*maxsize*/ dbch->xferq.psize,
1216 /*nsegments*/ dbch->ndesc > 3 ? dbch->ndesc - 2 : 1,
1217 /*maxsegsz*/ MAX_REQCOUNT,
1219 #if defined(__FreeBSD__) && __FreeBSD_version >= 501102
1220 /*lockfunc*/busdma_lock_mutex,
1226 /* allocate DB entries and attach one to each DMA channels */
1227 /* DB entry must start at 16 bytes bounary. */
1228 STAILQ_INIT(&dbch->db_trq);
1229 db_tr = (struct fwohcidb_tr *)
1230 malloc(sizeof(struct fwohcidb_tr) * dbch->ndb,
1231 M_FW, M_WAITOK | M_ZERO);
1233 printf("fwohci_db_init: malloc(1) failed\n");
1237 #define DB_SIZE(x) (sizeof(struct fwohcidb) * (x)->ndesc)
1238 dbch->am = fwdma_malloc_multiseg(&sc->fc, DB_SIZE(dbch),
1239 DB_SIZE(dbch), dbch->ndb, BUS_DMA_WAITOK);
1240 if (dbch->am == NULL) {
1241 printf("fwohci_db_init: fwdma_malloc_multiseg failed\n");
1245 /* Attach DB to DMA ch. */
1246 for(idb = 0 ; idb < dbch->ndb ; idb++){
1248 db_tr->db = (struct fwohcidb *)fwdma_v_addr(dbch->am, idb);
1249 db_tr->bus_addr = fwdma_bus_addr(dbch->am, idb);
1250 /* create dmamap for buffers */
1251 /* XXX do we need 4bytes alignment tag? */
1252 /* XXX don't alloc dma_map for AR */
1253 if (bus_dmamap_create(dbch->dmat, 0, &db_tr->dma_map) != 0) {
1254 printf("bus_dmamap_create failed\n");
1255 dbch->flags = FWOHCI_DBCH_INIT; /* XXX fake */
1256 fwohci_db_free(dbch);
1259 STAILQ_INSERT_TAIL(&dbch->db_trq, db_tr, link);
1260 if (dbch->xferq.flag & FWXFERQ_EXTBUF) {
1261 if (idb % dbch->xferq.bnpacket == 0)
1262 dbch->xferq.bulkxfer[idb / dbch->xferq.bnpacket
1263 ].start = (caddr_t)db_tr;
1264 if ((idb + 1) % dbch->xferq.bnpacket == 0)
1265 dbch->xferq.bulkxfer[idb / dbch->xferq.bnpacket
1266 ].end = (caddr_t)db_tr;
1270 STAILQ_LAST(&dbch->db_trq, fwohcidb_tr,link)->link.stqe_next
1271 = STAILQ_FIRST(&dbch->db_trq);
1273 dbch->xferq.queued = 0;
1274 dbch->pdb_tr = NULL;
1275 dbch->top = STAILQ_FIRST(&dbch->db_trq);
1276 dbch->bottom = dbch->top;
1277 dbch->flags = FWOHCI_DBCH_INIT;
1281 fwohci_itx_disable(struct firewire_comm *fc, int dmach)
1283 struct fwohci_softc *sc = (struct fwohci_softc *)fc;
1286 OWRITE(sc, OHCI_ITCTLCLR(dmach),
1287 OHCI_CNTL_DMA_RUN | OHCI_CNTL_CYCMATCH_S);
1288 OWRITE(sc, OHCI_IT_MASKCLR, 1 << dmach);
1289 OWRITE(sc, OHCI_IT_STATCLR, 1 << dmach);
1290 /* XXX we cannot free buffers until the DMA really stops */
1291 tsleep((void *)&sleepch, FWPRI, "fwitxd", hz);
1292 fwohci_db_free(&sc->it[dmach]);
1293 sc->it[dmach].xferq.flag &= ~FWXFERQ_RUNNING;
1298 fwohci_irx_disable(struct firewire_comm *fc, int dmach)
1300 struct fwohci_softc *sc = (struct fwohci_softc *)fc;
1303 OWRITE(sc, OHCI_IRCTLCLR(dmach), OHCI_CNTL_DMA_RUN);
1304 OWRITE(sc, OHCI_IR_MASKCLR, 1 << dmach);
1305 OWRITE(sc, OHCI_IR_STATCLR, 1 << dmach);
1306 /* XXX we cannot free buffers until the DMA really stops */
1307 tsleep((void *)&sleepch, FWPRI, "fwirxd", hz);
1308 fwohci_db_free(&sc->ir[dmach]);
1309 sc->ir[dmach].xferq.flag &= ~FWXFERQ_RUNNING;
1313 #if BYTE_ORDER == BIG_ENDIAN
1315 fwohci_irx_post (struct firewire_comm *fc , u_int32_t *qld)
1317 qld[0] = FWOHCI_DMA_READ(qld[0]);
1323 fwohci_tx_enable(struct fwohci_softc *sc, struct fwohci_dbch *dbch)
1326 int idb, z, i, dmach = 0, ldesc;
1328 struct fwohcidb_tr *db_tr;
1329 struct fwohcidb *db;
1331 if(!(dbch->xferq.flag & FWXFERQ_EXTBUF)){
1336 for(dmach = 0 ; dmach < sc->fc.nisodma ; dmach++){
1337 if( &sc->it[dmach] == dbch){
1338 off = OHCI_ITOFF(dmach);
1346 if(dbch->xferq.flag & FWXFERQ_RUNNING)
1348 dbch->xferq.flag |= FWXFERQ_RUNNING;
1349 for( i = 0, dbch->bottom = dbch->top; i < (dbch->ndb - 1); i++){
1350 dbch->bottom = STAILQ_NEXT(dbch->bottom, link);
1353 for (idb = 0; idb < dbch->ndb; idb ++) {
1354 fwohci_add_tx_buf(dbch, db_tr, idb);
1355 if(STAILQ_NEXT(db_tr, link) == NULL){
1359 ldesc = db_tr->dbcnt - 1;
1360 FWOHCI_DMA_WRITE(db[0].db.desc.depend,
1361 STAILQ_NEXT(db_tr, link)->bus_addr | z);
1362 db[ldesc].db.desc.depend = db[0].db.desc.depend;
1363 if(dbch->xferq.flag & FWXFERQ_EXTBUF){
1364 if(((idb + 1 ) % dbch->xferq.bnpacket) == 0){
1366 db[ldesc].db.desc.cmd,
1367 OHCI_INTERRUPT_ALWAYS);
1368 /* OHCI 1.1 and above */
1371 OHCI_INTERRUPT_ALWAYS);
1374 db_tr = STAILQ_NEXT(db_tr, link);
1377 dbch->bottom->db[dbch->bottom->dbcnt - 1].db.desc.depend, 0xf);
1382 fwohci_rx_enable(struct fwohci_softc *sc, struct fwohci_dbch *dbch)
1385 int idb, z, i, dmach = 0, ldesc;
1387 struct fwohcidb_tr *db_tr;
1388 struct fwohcidb *db;
1391 if(&sc->arrq == dbch){
1393 }else if(&sc->arrs == dbch){
1396 for(dmach = 0 ; dmach < sc->fc.nisodma ; dmach++){
1397 if( &sc->ir[dmach] == dbch){
1398 off = OHCI_IROFF(dmach);
1407 if(dbch->xferq.flag & FWXFERQ_STREAM){
1408 if(dbch->xferq.flag & FWXFERQ_RUNNING)
1411 if(dbch->xferq.flag & FWXFERQ_RUNNING){
1416 dbch->xferq.flag |= FWXFERQ_RUNNING;
1417 dbch->top = STAILQ_FIRST(&dbch->db_trq);
1418 for( i = 0, dbch->bottom = dbch->top; i < (dbch->ndb - 1); i++){
1419 dbch->bottom = STAILQ_NEXT(dbch->bottom, link);
1422 for (idb = 0; idb < dbch->ndb; idb ++) {
1423 fwohci_add_rx_buf(dbch, db_tr, idb, &sc->dummy_dma);
1424 if (STAILQ_NEXT(db_tr, link) == NULL)
1427 ldesc = db_tr->dbcnt - 1;
1428 FWOHCI_DMA_WRITE(db[ldesc].db.desc.depend,
1429 STAILQ_NEXT(db_tr, link)->bus_addr | z);
1430 if(dbch->xferq.flag & FWXFERQ_EXTBUF){
1431 if(((idb + 1 ) % dbch->xferq.bnpacket) == 0){
1433 db[ldesc].db.desc.cmd,
1434 OHCI_INTERRUPT_ALWAYS);
1436 db[ldesc].db.desc.depend,
1440 db_tr = STAILQ_NEXT(db_tr, link);
1443 dbch->bottom->db[db_tr->dbcnt - 1].db.desc.depend, 0xf);
1444 dbch->buf_offset = 0;
1445 fwdma_sync_multiseg_all(dbch->am, BUS_DMASYNC_PREREAD);
1446 fwdma_sync_multiseg_all(dbch->am, BUS_DMASYNC_PREWRITE);
1447 if(dbch->xferq.flag & FWXFERQ_STREAM){
1450 OWRITE(sc, OHCI_DMACMD(off), dbch->top->bus_addr | z);
1452 OWRITE(sc, OHCI_DMACTL(off), OHCI_CNTL_DMA_RUN);
1457 fwohci_next_cycle(struct firewire_comm *fc, int cycle_now)
1459 int sec, cycle, cycle_match;
1461 cycle = cycle_now & 0x1fff;
1462 sec = cycle_now >> 13;
1463 #define CYCLE_MOD 0x10
1465 #define CYCLE_DELAY 8 /* min delay to start DMA */
1467 #define CYCLE_DELAY 7000 /* min delay to start DMA */
1469 cycle = cycle + CYCLE_DELAY;
1470 if (cycle >= 8000) {
1474 cycle = roundup2(cycle, CYCLE_MOD);
1475 if (cycle >= 8000) {
1482 cycle_match = ((sec << 13) | cycle) & 0x7ffff;
1484 return(cycle_match);
1488 fwohci_itxbuf_enable(struct firewire_comm *fc, int dmach)
1490 struct fwohci_softc *sc = (struct fwohci_softc *)fc;
1492 unsigned short tag, ich;
1493 struct fwohci_dbch *dbch;
1494 int cycle_match, cycle_now, s, ldesc;
1496 struct fw_bulkxfer *first, *chunk, *prev;
1497 struct fw_xferq *it;
1499 dbch = &sc->it[dmach];
1502 tag = (it->flag >> 6) & 3;
1503 ich = it->flag & 0x3f;
1504 if ((dbch->flags & FWOHCI_DBCH_INIT) == 0) {
1505 dbch->ndb = it->bnpacket * it->bnchunk;
1507 fwohci_db_init(sc, dbch);
1508 if ((dbch->flags & FWOHCI_DBCH_INIT) == 0)
1510 err = fwohci_tx_enable(sc, dbch);
1515 ldesc = dbch->ndesc - 1;
1517 prev = STAILQ_LAST(&it->stdma, fw_bulkxfer, link);
1518 while ((chunk = STAILQ_FIRST(&it->stvalid)) != NULL) {
1519 struct fwohcidb *db;
1521 fwdma_sync_multiseg(it->buf, chunk->poffset, it->bnpacket,
1522 BUS_DMASYNC_PREWRITE);
1523 fwohci_txbufdb(sc, dmach, chunk);
1525 db = ((struct fwohcidb_tr *)(prev->end))->db;
1526 #if 0 /* XXX necessary? */
1527 FWOHCI_DMA_SET(db[ldesc].db.desc.cmd,
1528 OHCI_BRANCH_ALWAYS);
1530 #if 0 /* if bulkxfer->npacket changes */
1531 db[ldesc].db.desc.depend = db[0].db.desc.depend =
1532 ((struct fwohcidb_tr *)
1533 (chunk->start))->bus_addr | dbch->ndesc;
1535 FWOHCI_DMA_SET(db[0].db.desc.depend, dbch->ndesc);
1536 FWOHCI_DMA_SET(db[ldesc].db.desc.depend, dbch->ndesc);
1539 STAILQ_REMOVE_HEAD(&it->stvalid, link);
1540 STAILQ_INSERT_TAIL(&it->stdma, chunk, link);
1543 fwdma_sync_multiseg_all(dbch->am, BUS_DMASYNC_PREWRITE);
1544 fwdma_sync_multiseg_all(dbch->am, BUS_DMASYNC_PREREAD);
1546 stat = OREAD(sc, OHCI_ITCTL(dmach));
1547 if (firewire_debug && (stat & OHCI_CNTL_CYCMATCH_S))
1548 printf("stat 0x%x\n", stat);
1550 if (stat & (OHCI_CNTL_DMA_ACTIVE | OHCI_CNTL_CYCMATCH_S))
1554 OWRITE(sc, OHCI_ITCTLCLR(dmach), OHCI_CNTL_DMA_RUN);
1556 OWRITE(sc, OHCI_IT_MASKCLR, 1 << dmach);
1557 OWRITE(sc, OHCI_IT_STATCLR, 1 << dmach);
1558 OWRITE(sc, OHCI_IT_MASK, 1 << dmach);
1559 OWRITE(sc, FWOHCI_INTMASK, OHCI_INT_DMA_IT);
1561 first = STAILQ_FIRST(&it->stdma);
1562 OWRITE(sc, OHCI_ITCMD(dmach),
1563 ((struct fwohcidb_tr *)(first->start))->bus_addr | dbch->ndesc);
1564 if (firewire_debug) {
1565 printf("fwohci_itxbuf_enable: kick 0x%08x\n", stat);
1567 dump_dma(sc, ITX_CH + dmach);
1570 if ((stat & OHCI_CNTL_DMA_RUN) == 0) {
1572 /* Don't start until all chunks are buffered */
1573 if (STAILQ_FIRST(&it->stfree) != NULL)
1577 /* Clear cycle match counter bits */
1578 OWRITE(sc, OHCI_ITCTLCLR(dmach), 0xffff0000);
1580 /* 2bit second + 13bit cycle */
1581 cycle_now = (fc->cyctimer(fc) >> 12) & 0x7fff;
1582 cycle_match = fwohci_next_cycle(fc, cycle_now);
1584 OWRITE(sc, OHCI_ITCTL(dmach),
1585 OHCI_CNTL_CYCMATCH_S | (cycle_match << 16)
1586 | OHCI_CNTL_DMA_RUN);
1588 OWRITE(sc, OHCI_ITCTL(dmach), OHCI_CNTL_DMA_RUN);
1590 if (firewire_debug) {
1591 printf("cycle_match: 0x%04x->0x%04x\n",
1592 cycle_now, cycle_match);
1593 dump_dma(sc, ITX_CH + dmach);
1594 dump_db(sc, ITX_CH + dmach);
1596 } else if ((stat & OHCI_CNTL_CYCMATCH_S) == 0) {
1597 device_printf(sc->fc.dev,
1598 "IT DMA underrun (0x%08x)\n", stat);
1599 OWRITE(sc, OHCI_ITCTL(dmach), OHCI_CNTL_DMA_WAKE);
1606 fwohci_irx_enable(struct firewire_comm *fc, int dmach)
1608 struct fwohci_softc *sc = (struct fwohci_softc *)fc;
1609 int err = 0, s, ldesc;
1610 unsigned short tag, ich;
1612 struct fwohci_dbch *dbch;
1613 struct fwohcidb_tr *db_tr;
1614 struct fw_bulkxfer *first, *prev, *chunk;
1615 struct fw_xferq *ir;
1617 dbch = &sc->ir[dmach];
1620 if ((ir->flag & FWXFERQ_RUNNING) == 0) {
1621 tag = (ir->flag >> 6) & 3;
1622 ich = ir->flag & 0x3f;
1623 OWRITE(sc, OHCI_IRMATCH(dmach), tagbit[tag] | ich);
1626 dbch->ndb = ir->bnpacket * ir->bnchunk;
1628 fwohci_db_init(sc, dbch);
1629 if ((dbch->flags & FWOHCI_DBCH_INIT) == 0)
1631 err = fwohci_rx_enable(sc, dbch);
1636 first = STAILQ_FIRST(&ir->stfree);
1637 if (first == NULL) {
1638 device_printf(fc->dev, "IR DMA no free chunk\n");
1642 ldesc = dbch->ndesc - 1;
1644 prev = STAILQ_LAST(&ir->stdma, fw_bulkxfer, link);
1645 while ((chunk = STAILQ_FIRST(&ir->stfree)) != NULL) {
1646 struct fwohcidb *db;
1648 #if 1 /* XXX for if_fwe */
1649 if (chunk->mbuf != NULL) {
1650 db_tr = (struct fwohcidb_tr *)(chunk->start);
1652 err = bus_dmamap_load_mbuf(dbch->dmat, db_tr->dma_map,
1653 chunk->mbuf, fwohci_execute_db2, db_tr,
1655 FWOHCI_DMA_SET(db_tr->db[1].db.desc.cmd,
1656 OHCI_UPDATE | OHCI_INPUT_LAST |
1657 OHCI_INTERRUPT_ALWAYS | OHCI_BRANCH_ALWAYS);
1660 db = ((struct fwohcidb_tr *)(chunk->end))->db;
1661 FWOHCI_DMA_WRITE(db[ldesc].db.desc.res, 0);
1662 FWOHCI_DMA_CLEAR(db[ldesc].db.desc.depend, 0xf);
1664 db = ((struct fwohcidb_tr *)(prev->end))->db;
1665 FWOHCI_DMA_SET(db[ldesc].db.desc.depend, dbch->ndesc);
1667 STAILQ_REMOVE_HEAD(&ir->stfree, link);
1668 STAILQ_INSERT_TAIL(&ir->stdma, chunk, link);
1671 fwdma_sync_multiseg_all(dbch->am, BUS_DMASYNC_PREWRITE);
1672 fwdma_sync_multiseg_all(dbch->am, BUS_DMASYNC_PREREAD);
1674 stat = OREAD(sc, OHCI_IRCTL(dmach));
1675 if (stat & OHCI_CNTL_DMA_ACTIVE)
1677 if (stat & OHCI_CNTL_DMA_RUN) {
1678 OWRITE(sc, OHCI_IRCTLCLR(dmach), OHCI_CNTL_DMA_RUN);
1679 device_printf(sc->fc.dev, "IR DMA overrun (0x%08x)\n", stat);
1683 printf("start IR DMA 0x%x\n", stat);
1684 OWRITE(sc, OHCI_IR_MASKCLR, 1 << dmach);
1685 OWRITE(sc, OHCI_IR_STATCLR, 1 << dmach);
1686 OWRITE(sc, OHCI_IR_MASK, 1 << dmach);
1687 OWRITE(sc, OHCI_IRCTLCLR(dmach), 0xf0000000);
1688 OWRITE(sc, OHCI_IRCTL(dmach), OHCI_CNTL_ISOHDR);
1689 OWRITE(sc, OHCI_IRCMD(dmach),
1690 ((struct fwohcidb_tr *)(first->start))->bus_addr
1692 OWRITE(sc, OHCI_IRCTL(dmach), OHCI_CNTL_DMA_RUN);
1693 OWRITE(sc, FWOHCI_INTMASK, OHCI_INT_DMA_IR);
1695 dump_db(sc, IRX_CH + dmach);
1701 fwohci_stop(struct fwohci_softc *sc, device_t dev)
1705 /* Now stopping all DMA channel */
1706 OWRITE(sc, OHCI_ARQCTLCLR, OHCI_CNTL_DMA_RUN);
1707 OWRITE(sc, OHCI_ARSCTLCLR, OHCI_CNTL_DMA_RUN);
1708 OWRITE(sc, OHCI_ATQCTLCLR, OHCI_CNTL_DMA_RUN);
1709 OWRITE(sc, OHCI_ATSCTLCLR, OHCI_CNTL_DMA_RUN);
1711 for( i = 0 ; i < sc->fc.nisodma ; i ++ ){
1712 OWRITE(sc, OHCI_IRCTLCLR(i), OHCI_CNTL_DMA_RUN);
1713 OWRITE(sc, OHCI_ITCTLCLR(i), OHCI_CNTL_DMA_RUN);
1716 /* FLUSH FIFO and reset Transmitter/Reciever */
1717 OWRITE(sc, OHCI_HCCCTL, OHCI_HCC_RESET);
1719 /* Stop interrupt */
1720 OWRITE(sc, FWOHCI_INTMASKCLR,
1721 OHCI_INT_EN | OHCI_INT_ERR | OHCI_INT_PHY_SID
1723 | OHCI_INT_DMA_ATRQ | OHCI_INT_DMA_ATRS
1724 | OHCI_INT_DMA_PRRQ | OHCI_INT_DMA_PRRS
1725 | OHCI_INT_DMA_ARRQ | OHCI_INT_DMA_ARRS
1726 | OHCI_INT_PHY_BUS_R);
1728 if (sc->fc.arq !=0 && sc->fc.arq->maxq > 0)
1729 fw_drain_txq(&sc->fc);
1731 /* XXX Link down? Bus reset? */
1736 fwohci_resume(struct fwohci_softc *sc, device_t dev)
1739 struct fw_xferq *ir;
1740 struct fw_bulkxfer *chunk;
1742 fwohci_reset(sc, dev);
1743 /* XXX resume isochronus receive automatically. (how about TX?) */
1744 for(i = 0; i < sc->fc.nisodma; i ++) {
1745 ir = &sc->ir[i].xferq;
1746 if((ir->flag & FWXFERQ_RUNNING) != 0) {
1747 device_printf(sc->fc.dev,
1748 "resume iso receive ch: %d\n", i);
1749 ir->flag &= ~FWXFERQ_RUNNING;
1750 /* requeue stdma to stfree */
1751 while((chunk = STAILQ_FIRST(&ir->stdma)) != NULL) {
1752 STAILQ_REMOVE_HEAD(&ir->stdma, link);
1753 STAILQ_INSERT_TAIL(&ir->stfree, chunk, link);
1755 sc->fc.irx_enable(&sc->fc, i);
1759 bus_generic_resume(dev);
1760 sc->fc.ibr(&sc->fc);
1766 fwohci_intr_body(struct fwohci_softc *sc, u_int32_t stat, int count)
1768 u_int32_t irstat, itstat;
1770 struct firewire_comm *fc = (struct firewire_comm *)sc;
1773 if(stat & OREAD(sc, FWOHCI_INTMASK))
1774 device_printf(fc->dev, "INTERRUPT < %s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s> 0x%08x, 0x%08x\n",
1775 stat & OHCI_INT_EN ? "DMA_EN ":"",
1776 stat & OHCI_INT_PHY_REG ? "PHY_REG ":"",
1777 stat & OHCI_INT_CYC_LONG ? "CYC_LONG ":"",
1778 stat & OHCI_INT_ERR ? "INT_ERR ":"",
1779 stat & OHCI_INT_CYC_ERR ? "CYC_ERR ":"",
1780 stat & OHCI_INT_CYC_LOST ? "CYC_LOST ":"",
1781 stat & OHCI_INT_CYC_64SECOND ? "CYC_64SECOND ":"",
1782 stat & OHCI_INT_CYC_START ? "CYC_START ":"",
1783 stat & OHCI_INT_PHY_INT ? "PHY_INT ":"",
1784 stat & OHCI_INT_PHY_BUS_R ? "BUS_RESET ":"",
1785 stat & OHCI_INT_PHY_SID ? "SID ":"",
1786 stat & OHCI_INT_LR_ERR ? "DMA_LR_ERR ":"",
1787 stat & OHCI_INT_PW_ERR ? "DMA_PW_ERR ":"",
1788 stat & OHCI_INT_DMA_IR ? "DMA_IR ":"",
1789 stat & OHCI_INT_DMA_IT ? "DMA_IT " :"",
1790 stat & OHCI_INT_DMA_PRRS ? "DMA_PRRS " :"",
1791 stat & OHCI_INT_DMA_PRRQ ? "DMA_PRRQ " :"",
1792 stat & OHCI_INT_DMA_ARRS ? "DMA_ARRS " :"",
1793 stat & OHCI_INT_DMA_ARRQ ? "DMA_ARRQ " :"",
1794 stat & OHCI_INT_DMA_ATRS ? "DMA_ATRS " :"",
1795 stat & OHCI_INT_DMA_ATRQ ? "DMA_ATRQ " :"",
1796 stat, OREAD(sc, FWOHCI_INTMASK)
1800 if(stat & OHCI_INT_PHY_BUS_R ){
1801 if (fc->status == FWBUSRESET)
1803 /* Disable bus reset interrupt until sid recv. */
1804 OWRITE(sc, FWOHCI_INTMASKCLR, OHCI_INT_PHY_BUS_R);
1806 device_printf(fc->dev, "BUS reset\n");
1807 OWRITE(sc, FWOHCI_INTMASKCLR, OHCI_INT_CYC_LOST);
1808 OWRITE(sc, OHCI_LNKCTLCLR, OHCI_CNTL_CYCSRC);
1810 OWRITE(sc, OHCI_ATQCTLCLR, OHCI_CNTL_DMA_RUN);
1811 sc->atrq.xferq.flag &= ~FWXFERQ_RUNNING;
1812 OWRITE(sc, OHCI_ATSCTLCLR, OHCI_CNTL_DMA_RUN);
1813 sc->atrs.xferq.flag &= ~FWXFERQ_RUNNING;
1816 OWRITE(sc, FWOHCI_INTSTATCLR, OHCI_INT_PHY_BUS_R);
1819 OWRITE(sc, OHCI_CROMHDR, ntohl(sc->fc.config_rom[0]));
1820 OWRITE(sc, OHCI_BUS_OPT, ntohl(sc->fc.config_rom[2]));
1823 if((stat & OHCI_INT_DMA_IR )){
1825 OWRITE(sc, FWOHCI_INTSTATCLR, OHCI_INT_DMA_IR);
1827 #if defined(__DragonFly__) || __FreeBSD_version < 500000
1828 irstat = sc->irstat;
1831 irstat = atomic_readandclear_int(&sc->irstat);
1833 for(i = 0; i < fc->nisodma ; i++){
1834 struct fwohci_dbch *dbch;
1836 if((irstat & (1 << i)) != 0){
1838 if ((dbch->xferq.flag & FWXFERQ_OPEN) == 0) {
1839 device_printf(sc->fc.dev,
1840 "dma(%d) not active\n", i);
1843 fwohci_rbuf_update(sc, i);
1847 if((stat & OHCI_INT_DMA_IT )){
1849 OWRITE(sc, FWOHCI_INTSTATCLR, OHCI_INT_DMA_IT);
1851 #if defined(__DragonFly__) || __FreeBSD_version < 500000
1852 itstat = sc->itstat;
1855 itstat = atomic_readandclear_int(&sc->itstat);
1857 for(i = 0; i < fc->nisodma ; i++){
1858 if((itstat & (1 << i)) != 0){
1859 fwohci_tbuf_update(sc, i);
1863 if((stat & OHCI_INT_DMA_PRRS )){
1865 OWRITE(sc, FWOHCI_INTSTATCLR, OHCI_INT_DMA_PRRS);
1868 dump_dma(sc, ARRS_CH);
1869 dump_db(sc, ARRS_CH);
1871 fwohci_arcv(sc, &sc->arrs, count);
1873 if((stat & OHCI_INT_DMA_PRRQ )){
1875 OWRITE(sc, FWOHCI_INTSTATCLR, OHCI_INT_DMA_PRRQ);
1878 dump_dma(sc, ARRQ_CH);
1879 dump_db(sc, ARRQ_CH);
1881 fwohci_arcv(sc, &sc->arrq, count);
1883 if(stat & OHCI_INT_PHY_SID){
1884 u_int32_t *buf, node_id;
1888 OWRITE(sc, FWOHCI_INTSTATCLR, OHCI_INT_PHY_SID);
1890 /* Enable bus reset interrupt */
1891 OWRITE(sc, FWOHCI_INTMASK, OHCI_INT_PHY_BUS_R);
1892 /* Allow async. request to us */
1893 OWRITE(sc, OHCI_AREQHI, 1 << 31);
1894 /* XXX insecure ?? */
1895 OWRITE(sc, OHCI_PREQHI, 0x7fffffff);
1896 OWRITE(sc, OHCI_PREQLO, 0xffffffff);
1897 OWRITE(sc, OHCI_PREQUPPER, 0x10000);
1898 /* Set ATRetries register */
1899 OWRITE(sc, OHCI_ATRETRY, 1<<(13+16) | 0xfff);
1901 ** Checking whether the node is root or not. If root, turn on
1904 node_id = OREAD(sc, FWOHCI_NODEID);
1905 plen = OREAD(sc, OHCI_SID_CNT);
1907 device_printf(fc->dev, "node_id=0x%08x, gen=%d, ",
1908 node_id, (plen >> 16) & 0xff);
1909 if (!(node_id & OHCI_NODE_VALID)) {
1910 printf("Bus reset failure\n");
1913 if (node_id & OHCI_NODE_ROOT) {
1914 printf("CYCLEMASTER mode\n");
1915 OWRITE(sc, OHCI_LNKCTL,
1916 OHCI_CNTL_CYCMTR | OHCI_CNTL_CYCTIMER);
1918 printf("non CYCLEMASTER mode\n");
1919 OWRITE(sc, OHCI_LNKCTLCLR, OHCI_CNTL_CYCMTR);
1920 OWRITE(sc, OHCI_LNKCTL, OHCI_CNTL_CYCTIMER);
1922 fc->nodeid = node_id & 0x3f;
1924 if (plen & OHCI_SID_ERR) {
1925 device_printf(fc->dev, "SID Error\n");
1928 plen &= OHCI_SID_CNT_MASK;
1929 if (plen < 4 || plen > OHCI_SIDSIZE) {
1930 device_printf(fc->dev, "invalid SID len = %d\n", plen);
1933 plen -= 4; /* chop control info */
1934 buf = (u_int32_t *)malloc(OHCI_SIDSIZE, M_FW, M_INTWAIT);
1936 device_printf(fc->dev, "malloc failed\n");
1939 for (i = 0; i < plen / 4; i ++)
1940 buf[i] = FWOHCI_DMA_READ(sc->sid_buf[i+1]);
1942 /* pending all pre-bus_reset packets */
1943 fwohci_txd(sc, &sc->atrq);
1944 fwohci_txd(sc, &sc->atrs);
1945 fwohci_arcv(sc, &sc->arrs, -1);
1946 fwohci_arcv(sc, &sc->arrq, -1);
1949 fw_sidrcv(fc, buf, plen);
1953 if((stat & OHCI_INT_DMA_ATRQ )){
1955 OWRITE(sc, FWOHCI_INTSTATCLR, OHCI_INT_DMA_ATRQ);
1957 fwohci_txd(sc, &(sc->atrq));
1959 if((stat & OHCI_INT_DMA_ATRS )){
1961 OWRITE(sc, FWOHCI_INTSTATCLR, OHCI_INT_DMA_ATRS);
1963 fwohci_txd(sc, &(sc->atrs));
1965 if((stat & OHCI_INT_PW_ERR )){
1967 OWRITE(sc, FWOHCI_INTSTATCLR, OHCI_INT_PW_ERR);
1969 device_printf(fc->dev, "posted write error\n");
1971 if((stat & OHCI_INT_ERR )){
1973 OWRITE(sc, FWOHCI_INTSTATCLR, OHCI_INT_ERR);
1975 device_printf(fc->dev, "unrecoverable error\n");
1977 if((stat & OHCI_INT_PHY_INT)) {
1979 OWRITE(sc, FWOHCI_INTSTATCLR, OHCI_INT_PHY_INT);
1981 device_printf(fc->dev, "phy int\n");
1987 #if FWOHCI_TASKQUEUE
1989 fwohci_complete(void *arg, int pending)
1991 struct fwohci_softc *sc = (struct fwohci_softc *)arg;
1995 stat = atomic_readandclear_int(&sc->intstat);
1997 fwohci_intr_body(sc, stat, -1);
2005 fwochi_check_stat(struct fwohci_softc *sc)
2007 u_int32_t stat, irstat, itstat;
2009 stat = OREAD(sc, FWOHCI_INTSTAT);
2010 if (stat == 0xffffffff) {
2011 device_printf(sc->fc.dev,
2012 "device physically ejected?\n");
2017 OWRITE(sc, FWOHCI_INTSTATCLR, stat);
2019 if (stat & OHCI_INT_DMA_IR) {
2020 irstat = OREAD(sc, OHCI_IR_STAT);
2021 OWRITE(sc, OHCI_IR_STATCLR, irstat);
2022 atomic_set_int(&sc->irstat, irstat);
2024 if (stat & OHCI_INT_DMA_IT) {
2025 itstat = OREAD(sc, OHCI_IT_STAT);
2026 OWRITE(sc, OHCI_IT_STATCLR, itstat);
2027 atomic_set_int(&sc->itstat, itstat);
2033 fwohci_intr(void *arg)
2035 struct fwohci_softc *sc = (struct fwohci_softc *)arg;
2037 #if !FWOHCI_TASKQUEUE
2038 u_int32_t bus_reset = 0;
2041 if (!(sc->intmask & OHCI_INT_EN)) {
2046 #if !FWOHCI_TASKQUEUE
2049 stat = fwochi_check_stat(sc);
2050 if (stat == 0 || stat == 0xffffffff)
2052 #if FWOHCI_TASKQUEUE
2053 atomic_set_int(&sc->intstat, stat);
2054 /* XXX mask bus reset intr. during bus reset phase */
2056 taskqueue_enqueue(taskqueue_swi_giant, &sc->fwohci_task_complete);
2058 /* We cannot clear bus reset event during bus reset phase */
2059 if ((stat & ~bus_reset) == 0)
2061 bus_reset = stat & OHCI_INT_PHY_BUS_R;
2062 fwohci_intr_body(sc, stat, -1);
2068 fwohci_poll(struct firewire_comm *fc, int quick, int count)
2072 struct fwohci_softc *sc;
2075 sc = (struct fwohci_softc *)fc;
2076 stat = OHCI_INT_DMA_IR | OHCI_INT_DMA_IT |
2077 OHCI_INT_DMA_PRRS | OHCI_INT_DMA_PRRQ |
2078 OHCI_INT_DMA_ATRQ | OHCI_INT_DMA_ATRS;
2084 stat = fwochi_check_stat(sc);
2085 if (stat == 0 || stat == 0xffffffff)
2089 fwohci_intr_body(sc, stat, count);
2094 fwohci_set_intr(struct firewire_comm *fc, int enable)
2096 struct fwohci_softc *sc;
2098 sc = (struct fwohci_softc *)fc;
2100 device_printf(sc->fc.dev, "fwohci_set_intr: %d\n", enable);
2102 sc->intmask |= OHCI_INT_EN;
2103 OWRITE(sc, FWOHCI_INTMASK, OHCI_INT_EN);
2105 sc->intmask &= ~OHCI_INT_EN;
2106 OWRITE(sc, FWOHCI_INTMASKCLR, OHCI_INT_EN);
2111 fwohci_tbuf_update(struct fwohci_softc *sc, int dmach)
2113 struct firewire_comm *fc = &sc->fc;
2114 struct fwohcidb *db;
2115 struct fw_bulkxfer *chunk;
2116 struct fw_xferq *it;
2117 u_int32_t stat, count;
2121 ldesc = sc->it[dmach].ndesc - 1;
2122 s = splfw(); /* unnecessary ? */
2123 fwdma_sync_multiseg_all(sc->it[dmach].am, BUS_DMASYNC_POSTREAD);
2125 dump_db(sc, ITX_CH + dmach);
2126 while ((chunk = STAILQ_FIRST(&it->stdma)) != NULL) {
2127 db = ((struct fwohcidb_tr *)(chunk->end))->db;
2128 stat = FWOHCI_DMA_READ(db[ldesc].db.desc.res)
2129 >> OHCI_STATUS_SHIFT;
2130 db = ((struct fwohcidb_tr *)(chunk->start))->db;
2132 count = FWOHCI_DMA_READ(db[ldesc].db.desc.res)
2136 STAILQ_REMOVE_HEAD(&it->stdma, link);
2137 switch (stat & FWOHCIEV_MASK){
2138 case FWOHCIEV_ACKCOMPL:
2140 device_printf(fc->dev, "0x%08x\n", count);
2144 device_printf(fc->dev,
2145 "Isochronous transmit err %02x(%s)\n",
2146 stat, fwohcicode[stat & 0x1f]);
2148 STAILQ_INSERT_TAIL(&it->stfree, chunk, link);
2157 fwohci_rbuf_update(struct fwohci_softc *sc, int dmach)
2159 struct firewire_comm *fc = &sc->fc;
2160 struct fwohcidb_tr *db_tr;
2161 struct fw_bulkxfer *chunk;
2162 struct fw_xferq *ir;
2167 ldesc = sc->ir[dmach].ndesc - 1;
2172 fwdma_sync_multiseg_all(sc->ir[dmach].am, BUS_DMASYNC_POSTREAD);
2173 while ((chunk = STAILQ_FIRST(&ir->stdma)) != NULL) {
2174 db_tr = (struct fwohcidb_tr *)chunk->end;
2175 stat = FWOHCI_DMA_READ(db_tr->db[ldesc].db.desc.res)
2176 >> OHCI_STATUS_SHIFT;
2180 if (chunk->mbuf != NULL) {
2181 bus_dmamap_sync(sc->ir[dmach].dmat, db_tr->dma_map,
2182 BUS_DMASYNC_POSTREAD);
2183 bus_dmamap_unload(sc->ir[dmach].dmat, db_tr->dma_map);
2184 } else if (ir->buf != NULL) {
2185 fwdma_sync_multiseg(ir->buf, chunk->poffset,
2186 ir->bnpacket, BUS_DMASYNC_POSTREAD);
2189 printf("fwohci_rbuf_update: this shouldn't happend\n");
2192 STAILQ_REMOVE_HEAD(&ir->stdma, link);
2193 STAILQ_INSERT_TAIL(&ir->stvalid, chunk, link);
2194 switch (stat & FWOHCIEV_MASK) {
2195 case FWOHCIEV_ACKCOMPL:
2199 chunk->resp = EINVAL;
2200 device_printf(fc->dev,
2201 "Isochronous receive err %02x(%s)\n",
2202 stat, fwohcicode[stat & 0x1f]);
2208 if (ir->flag & FWXFERQ_HANDLER)
2216 dump_dma(struct fwohci_softc *sc, u_int32_t ch)
2218 u_int32_t off, cntl, stat, cmd, match;
2228 }else if(ch < IRX_CH){
2229 off = OHCI_ITCTL(ch - ITX_CH);
2231 off = OHCI_IRCTL(ch - IRX_CH);
2233 cntl = stat = OREAD(sc, off);
2234 cmd = OREAD(sc, off + 0xc);
2235 match = OREAD(sc, off + 0x10);
2237 device_printf(sc->fc.dev, "ch %1x cntl:0x%08x cmd:0x%08x match:0x%08x\n",
2244 device_printf(sc->fc.dev, "dma %d ch:%s%s%s%s%s%s %s(%x)\n",
2246 stat & OHCI_CNTL_DMA_RUN ? "RUN," : "",
2247 stat & OHCI_CNTL_DMA_WAKE ? "WAKE," : "",
2248 stat & OHCI_CNTL_DMA_DEAD ? "DEAD," : "",
2249 stat & OHCI_CNTL_DMA_ACTIVE ? "ACTIVE," : "",
2250 stat & OHCI_CNTL_DMA_BT ? "BRANCH," : "",
2251 stat & OHCI_CNTL_DMA_BAD ? "BADDMA," : "",
2252 fwohcicode[stat & 0x1f],
2256 device_printf(sc->fc.dev, "dma %d ch: Nostat\n", ch);
2261 dump_db(struct fwohci_softc *sc, u_int32_t ch)
2263 struct fwohci_dbch *dbch;
2264 struct fwohcidb_tr *cp = NULL, *pp, *np = NULL;
2265 struct fwohcidb *curr = NULL, *prev, *next = NULL;
2280 }else if(ch < IRX_CH){
2281 off = OHCI_ITCTL(ch - ITX_CH);
2282 dbch = &sc->it[ch - ITX_CH];
2284 off = OHCI_IRCTL(ch - IRX_CH);
2285 dbch = &sc->ir[ch - IRX_CH];
2287 cmd = OREAD(sc, off + 0xc);
2289 if( dbch->ndb == 0 ){
2290 device_printf(sc->fc.dev, "No DB is attached ch=%d\n", ch);
2295 for(idb = 0 ; idb < dbch->ndb ; idb ++ ){
2300 cp = STAILQ_NEXT(pp, link);
2305 np = STAILQ_NEXT(cp, link);
2306 for(jdb = 0 ; jdb < dbch->ndesc ; jdb ++ ){
2307 if ((cmd & 0xfffffff0) == cp->bus_addr) {
2317 pp = STAILQ_NEXT(pp, link);
2323 printf("Prev DB %d\n", ch);
2324 print_db(pp, prev, ch, dbch->ndesc);
2326 printf("Current DB %d\n", ch);
2327 print_db(cp, curr, ch, dbch->ndesc);
2329 printf("Next DB %d\n", ch);
2330 print_db(np, next, ch, dbch->ndesc);
2333 printf("dbdump err ch = %d cmd = 0x%08x\n", ch, cmd);
2339 print_db(struct fwohcidb_tr *db_tr, struct fwohcidb *db,
2340 u_int32_t ch, u_int32_t max)
2347 printf("No Descriptor is found\n");
2351 printf("ch = %d\n%8s %s %s %s %s %4s %8s %8s %4s:%4s\n",
2363 for( i = 0 ; i <= max ; i ++){
2364 cmd = FWOHCI_DMA_READ(db[i].db.desc.cmd);
2365 res = FWOHCI_DMA_READ(db[i].db.desc.res);
2366 key = cmd & OHCI_KEY_MASK;
2367 stat = res >> OHCI_STATUS_SHIFT;
2368 #if defined(__DragonFly__) || __FreeBSD_version < 500000
2369 printf("%08x %s %s %s %s %5d %08x %08x %04x:%04x",
2372 printf("%08jx %s %s %s %s %5d %08x %08x %04x:%04x",
2373 (uintmax_t)db_tr->bus_addr,
2375 dbcode[(cmd >> 28) & 0xf],
2376 dbkey[(cmd >> 24) & 0x7],
2377 dbcond[(cmd >> 20) & 0x3],
2378 dbcond[(cmd >> 18) & 0x3],
2379 cmd & OHCI_COUNT_MASK,
2380 FWOHCI_DMA_READ(db[i].db.desc.addr),
2381 FWOHCI_DMA_READ(db[i].db.desc.depend),
2383 res & OHCI_COUNT_MASK);
2385 printf(" %s%s%s%s%s%s %s(%x)\n",
2386 stat & OHCI_CNTL_DMA_RUN ? "RUN," : "",
2387 stat & OHCI_CNTL_DMA_WAKE ? "WAKE," : "",
2388 stat & OHCI_CNTL_DMA_DEAD ? "DEAD," : "",
2389 stat & OHCI_CNTL_DMA_ACTIVE ? "ACTIVE," : "",
2390 stat & OHCI_CNTL_DMA_BT ? "BRANCH," : "",
2391 stat & OHCI_CNTL_DMA_BAD ? "BADDMA," : "",
2392 fwohcicode[stat & 0x1f],
2396 printf(" Nostat\n");
2398 if(key == OHCI_KEY_ST2 ){
2399 printf("0x%08x 0x%08x 0x%08x 0x%08x\n",
2400 FWOHCI_DMA_READ(db[i+1].db.immed[0]),
2401 FWOHCI_DMA_READ(db[i+1].db.immed[1]),
2402 FWOHCI_DMA_READ(db[i+1].db.immed[2]),
2403 FWOHCI_DMA_READ(db[i+1].db.immed[3]));
2405 if(key == OHCI_KEY_DEVICE){
2408 if((cmd & OHCI_BRANCH_MASK)
2409 == OHCI_BRANCH_ALWAYS){
2412 if((cmd & OHCI_CMD_MASK)
2413 == OHCI_OUTPUT_LAST){
2416 if((cmd & OHCI_CMD_MASK)
2417 == OHCI_INPUT_LAST){
2420 if(key == OHCI_KEY_ST2 ){
2428 fwohci_ibr(struct firewire_comm *fc)
2430 struct fwohci_softc *sc;
2433 device_printf(fc->dev, "Initiate bus reset\n");
2434 sc = (struct fwohci_softc *)fc;
2437 * Set root hold-off bit so that non cyclemaster capable node
2438 * shouldn't became the root node.
2441 fun = fwphy_rddata(sc, FW_PHY_IBR_REG);
2442 fun |= FW_PHY_IBR | FW_PHY_RHB;
2443 fun = fwphy_wrdata(sc, FW_PHY_IBR_REG, fun);
2444 #else /* Short bus reset */
2445 fun = fwphy_rddata(sc, FW_PHY_ISBR_REG);
2446 fun |= FW_PHY_ISBR | FW_PHY_RHB;
2447 fun = fwphy_wrdata(sc, FW_PHY_ISBR_REG, fun);
2452 fwohci_txbufdb(struct fwohci_softc *sc, int dmach, struct fw_bulkxfer *bulkxfer)
2454 struct fwohcidb_tr *db_tr, *fdb_tr;
2455 struct fwohci_dbch *dbch;
2456 struct fwohcidb *db;
2458 struct fwohci_txpkthdr *ohcifp;
2459 unsigned short chtag;
2462 dbch = &sc->it[dmach];
2463 chtag = sc->it[dmach].xferq.flag & 0xff;
2465 db_tr = (struct fwohcidb_tr *)(bulkxfer->start);
2466 fdb_tr = (struct fwohcidb_tr *)(bulkxfer->end);
2468 device_printf(sc->fc.dev, "DB %08x %08x %08x\n", bulkxfer, db_tr->bus_addr, fdb_tr->bus_addr);
2470 for (idb = 0; idb < dbch->xferq.bnpacket; idb ++) {
2472 fp = (struct fw_pkt *)db_tr->buf;
2473 ohcifp = (struct fwohci_txpkthdr *) db[1].db.immed;
2474 ohcifp->mode.ld[0] = fp->mode.ld[0];
2475 ohcifp->mode.common.spd = 0 & 0x7;
2476 ohcifp->mode.stream.len = fp->mode.stream.len;
2477 ohcifp->mode.stream.chtag = chtag;
2478 ohcifp->mode.stream.tcode = 0xa;
2479 #if BYTE_ORDER == BIG_ENDIAN
2480 FWOHCI_DMA_WRITE(db[1].db.immed[0], db[1].db.immed[0]);
2481 FWOHCI_DMA_WRITE(db[1].db.immed[1], db[1].db.immed[1]);
2484 FWOHCI_DMA_CLEAR(db[2].db.desc.cmd, OHCI_COUNT_MASK);
2485 FWOHCI_DMA_SET(db[2].db.desc.cmd, fp->mode.stream.len);
2486 FWOHCI_DMA_WRITE(db[2].db.desc.res, 0);
2487 #if 0 /* if bulkxfer->npackets changes */
2488 db[2].db.desc.cmd = OHCI_OUTPUT_LAST
2490 | OHCI_BRANCH_ALWAYS;
2491 db[0].db.desc.depend =
2492 = db[dbch->ndesc - 1].db.desc.depend
2493 = STAILQ_NEXT(db_tr, link)->bus_addr | dbch->ndesc;
2495 FWOHCI_DMA_SET(db[0].db.desc.depend, dbch->ndesc);
2496 FWOHCI_DMA_SET(db[dbch->ndesc - 1].db.desc.depend, dbch->ndesc);
2498 bulkxfer->end = (caddr_t)db_tr;
2499 db_tr = STAILQ_NEXT(db_tr, link);
2501 db = ((struct fwohcidb_tr *)bulkxfer->end)->db;
2502 FWOHCI_DMA_CLEAR(db[0].db.desc.depend, 0xf);
2503 FWOHCI_DMA_CLEAR(db[dbch->ndesc - 1].db.desc.depend, 0xf);
2504 #if 0 /* if bulkxfer->npackets changes */
2505 db[dbch->ndesc - 1].db.desc.control |= OHCI_INTERRUPT_ALWAYS;
2506 /* OHCI 1.1 and above */
2507 db[0].db.desc.control |= OHCI_INTERRUPT_ALWAYS;
2510 db_tr = (struct fwohcidb_tr *)bulkxfer->start;
2511 fdb_tr = (struct fwohcidb_tr *)bulkxfer->end;
2512 device_printf(sc->fc.dev, "DB %08x %3d %08x %08x\n", bulkxfer, bulkxfer->npacket, db_tr->bus_addr, fdb_tr->bus_addr);
2518 fwohci_add_tx_buf(struct fwohci_dbch *dbch, struct fwohcidb_tr *db_tr,
2521 struct fwohcidb *db = db_tr->db;
2522 struct fw_xferq *it;
2530 db_tr->buf = fwdma_v_addr(it->buf, poffset);
2533 FWOHCI_DMA_WRITE(db[0].db.desc.cmd,
2534 OHCI_OUTPUT_MORE | OHCI_KEY_ST2 | 8);
2535 FWOHCI_DMA_WRITE(db[0].db.desc.addr, 0);
2536 bzero((void *)&db[1].db.immed[0], sizeof(db[1].db.immed));
2537 FWOHCI_DMA_WRITE(db[2].db.desc.addr,
2538 fwdma_bus_addr(it->buf, poffset) + sizeof(u_int32_t));
2540 FWOHCI_DMA_WRITE(db[2].db.desc.cmd,
2541 OHCI_OUTPUT_LAST | OHCI_UPDATE | OHCI_BRANCH_ALWAYS);
2543 FWOHCI_DMA_WRITE(db[0].db.desc.res, 0);
2544 FWOHCI_DMA_WRITE(db[2].db.desc.res, 0);
2550 fwohci_add_rx_buf(struct fwohci_dbch *dbch, struct fwohcidb_tr *db_tr,
2551 int poffset, struct fwdma_alloc *dummy_dma)
2553 struct fwohcidb *db = db_tr->db;
2554 struct fw_xferq *ir;
2560 if (ir->buf == NULL && (dbch->xferq.flag & FWXFERQ_EXTBUF) == 0) {
2561 db_tr->buf = fwdma_malloc_size(dbch->dmat, &db_tr->dma_map,
2562 ir->psize, &dbuf[0], BUS_DMA_NOWAIT);
2563 if (db_tr->buf == NULL)
2566 dsiz[0] = ir->psize;
2567 bus_dmamap_sync(dbch->dmat, db_tr->dma_map,
2568 BUS_DMASYNC_PREREAD);
2571 if (dummy_dma != NULL) {
2572 dsiz[db_tr->dbcnt] = sizeof(u_int32_t);
2573 dbuf[db_tr->dbcnt++] = dummy_dma->bus_addr;
2575 dsiz[db_tr->dbcnt] = ir->psize;
2576 if (ir->buf != NULL) {
2577 db_tr->buf = fwdma_v_addr(ir->buf, poffset);
2578 dbuf[db_tr->dbcnt] = fwdma_bus_addr( ir->buf, poffset);
2582 for(i = 0 ; i < db_tr->dbcnt ; i++){
2583 FWOHCI_DMA_WRITE(db[i].db.desc.addr, dbuf[i]);
2584 FWOHCI_DMA_WRITE(db[i].db.desc.cmd, OHCI_INPUT_MORE | dsiz[i]);
2585 if (ir->flag & FWXFERQ_STREAM) {
2586 FWOHCI_DMA_SET(db[i].db.desc.cmd, OHCI_UPDATE);
2588 FWOHCI_DMA_WRITE(db[i].db.desc.res, dsiz[i]);
2590 ldesc = db_tr->dbcnt - 1;
2591 if (ir->flag & FWXFERQ_STREAM) {
2592 FWOHCI_DMA_SET(db[ldesc].db.desc.cmd, OHCI_INPUT_LAST);
2594 FWOHCI_DMA_SET(db[ldesc].db.desc.cmd, OHCI_BRANCH_ALWAYS);
2600 fwohci_arcv_swap(struct fw_pkt *fp, int len)
2605 #if BYTE_ORDER == BIG_ENDIAN
2609 ld0 = FWOHCI_DMA_READ(fp->mode.ld[0]);
2611 printf("ld0: x%08x\n", ld0);
2613 fp0 = (struct fw_pkt *)&ld0;
2614 /* determine length to swap */
2615 switch (fp0->mode.common.tcode) {
2620 case FWOHCITCODE_PHY:
2631 printf("Unknown tcode %d\n", fp0->mode.common.tcode);
2634 hlen = tinfo[fp0->mode.common.tcode].hdr_len;
2637 printf("splitted header\n");
2640 #if BYTE_ORDER == BIG_ENDIAN
2641 for(i = 0; i < slen/4; i ++)
2642 fp->mode.ld[i] = FWOHCI_DMA_READ(fp->mode.ld[i]);
2648 fwohci_get_plen(struct fwohci_softc *sc, struct fwohci_dbch *dbch, struct fw_pkt *fp)
2650 struct tcode_info *info;
2653 info = &tinfo[fp->mode.common.tcode];
2654 r = info->hdr_len + sizeof(u_int32_t);
2655 if ((info->flag & FWTI_BLOCK_ASY) != 0)
2656 r += roundup2(fp->mode.wreqb.len, sizeof(u_int32_t));
2658 if (r == sizeof(u_int32_t))
2660 device_printf(sc->fc.dev, "Unknown tcode %d\n",
2661 fp->mode.common.tcode);
2663 if (r > dbch->xferq.psize) {
2664 device_printf(sc->fc.dev, "Invalid packet length %d\n", r);
2672 fwohci_arcv_free_buf(struct fwohci_dbch *dbch, struct fwohcidb_tr *db_tr)
2674 struct fwohcidb *db = &db_tr->db[0];
2676 FWOHCI_DMA_CLEAR(db->db.desc.depend, 0xf);
2677 FWOHCI_DMA_WRITE(db->db.desc.res, dbch->xferq.psize);
2678 FWOHCI_DMA_SET(dbch->bottom->db[0].db.desc.depend, 1);
2679 fwdma_sync_multiseg_all(dbch->am, BUS_DMASYNC_PREWRITE);
2680 dbch->bottom = db_tr;
2684 fwohci_arcv(struct fwohci_softc *sc, struct fwohci_dbch *dbch, int count)
2686 struct fwohcidb_tr *db_tr;
2687 struct iovec vec[2];
2688 struct fw_pkt pktbuf;
2692 u_int32_t stat, off, status;
2694 int len, plen, hlen, pcnt, offset;
2699 if(&sc->arrq == dbch){
2701 }else if(&sc->arrs == dbch){
2710 /* XXX we cannot handle a packet which lies in more than two buf */
2711 fwdma_sync_multiseg_all(dbch->am, BUS_DMASYNC_POSTREAD);
2712 fwdma_sync_multiseg_all(dbch->am, BUS_DMASYNC_POSTWRITE);
2713 status = FWOHCI_DMA_READ(db_tr->db[0].db.desc.res) >> OHCI_STATUS_SHIFT;
2714 resCount = FWOHCI_DMA_READ(db_tr->db[0].db.desc.res) & OHCI_COUNT_MASK;
2716 printf("status 0x%04x, resCount 0x%04x\n", status, resCount);
2718 while (status & OHCI_CNTL_DMA_ACTIVE) {
2719 len = dbch->xferq.psize - resCount;
2720 ld = (u_int8_t *)db_tr->buf;
2721 if (dbch->pdb_tr == NULL) {
2722 len -= dbch->buf_offset;
2723 ld += dbch->buf_offset;
2726 bus_dmamap_sync(dbch->dmat, db_tr->dma_map,
2727 BUS_DMASYNC_POSTREAD);
2729 if (count >= 0 && count-- == 0)
2731 if(dbch->pdb_tr != NULL){
2732 /* we have a fragment in previous buffer */
2735 offset = dbch->buf_offset;
2738 buf = dbch->pdb_tr->buf + offset;
2739 rlen = dbch->xferq.psize - offset;
2741 printf("rlen=%d, offset=%d\n",
2742 rlen, dbch->buf_offset);
2743 if (dbch->buf_offset < 0) {
2744 /* splitted in header, pull up */
2747 p = (char *)&pktbuf;
2748 bcopy(buf, p, rlen);
2750 /* this must be too long but harmless */
2751 rlen = sizeof(pktbuf) - rlen;
2753 printf("why rlen < 0\n");
2754 bcopy(db_tr->buf, p, rlen);
2757 hlen = fwohci_arcv_swap(&pktbuf, sizeof(pktbuf));
2759 printf("hlen < 0 shouldn't happen");
2761 offset = sizeof(pktbuf);
2762 vec[0].iov_base = (char *)&pktbuf;
2763 vec[0].iov_len = offset;
2765 /* splitted in payload */
2767 vec[0].iov_base = buf;
2768 vec[0].iov_len = rlen;
2770 fp=(struct fw_pkt *)vec[0].iov_base;
2773 /* no fragment in previous buffer */
2774 fp=(struct fw_pkt *)ld;
2775 hlen = fwohci_arcv_swap(fp, len);
2777 /* XXX need reset */
2780 dbch->pdb_tr = db_tr;
2781 dbch->buf_offset = - dbch->buf_offset;
2784 printf("resCount = %d !?\n",
2786 /* XXX clear pdb_tr */
2792 plen = fwohci_get_plen(sc, dbch, fp) - offset;
2794 /* minimum header size + trailer
2795 = sizeof(fw_pkt) so this shouldn't happens */
2796 printf("plen(%d) is negative! offset=%d\n",
2798 /* XXX clear pdb_tr */
2804 dbch->pdb_tr = db_tr;
2806 printf("splitted payload\n");
2809 printf("resCount = %d !?\n",
2811 /* XXX clear pdb_tr */
2814 vec[nvec].iov_base = ld;
2815 vec[nvec].iov_len = plen;
2819 dbch->buf_offset = ld - (u_int8_t *)db_tr->buf;
2821 printf("nvec == 0\n");
2823 /* DMA result-code will be written at the tail of packet */
2824 #if BYTE_ORDER == BIG_ENDIAN
2825 stat = FWOHCI_DMA_READ(((struct fwohci_trailer *)(ld - sizeof(struct fwohci_trailer)))->stat) >> 16;
2827 stat = ((struct fwohci_trailer *)(ld - sizeof(struct fwohci_trailer)))->stat;
2830 printf("plen: %d, stat %x\n",
2833 spd = (stat >> 5) & 0x3;
2836 case FWOHCIEV_ACKPEND:
2838 printf("fwohci_arcv: ack pending tcode=0x%x..\n", fp->mode.common.tcode);
2841 case FWOHCIEV_ACKCOMPL:
2843 struct fw_rcv_buf rb;
2845 if ((vec[nvec-1].iov_len -=
2846 sizeof(struct fwohci_trailer)) == 0)
2855 case FWOHCIEV_BUSRST:
2856 if (sc->fc.status != FWBUSRESET)
2857 printf("got BUSRST packet!?\n");
2860 device_printf(sc->fc.dev, "Async DMA Receive error err = %02x %s\n", stat, fwohcicode[stat]);
2867 if (dbch->pdb_tr != NULL) {
2868 fwohci_arcv_free_buf(dbch, dbch->pdb_tr);
2869 dbch->pdb_tr = NULL;
2874 if (resCount == 0) {
2875 /* done on this buffer */
2876 if (dbch->pdb_tr == NULL) {
2877 fwohci_arcv_free_buf(dbch, db_tr);
2878 dbch->buf_offset = 0;
2880 if (dbch->pdb_tr != db_tr)
2881 printf("pdb_tr != db_tr\n");
2882 db_tr = STAILQ_NEXT(db_tr, link);
2883 status = FWOHCI_DMA_READ(db_tr->db[0].db.desc.res)
2884 >> OHCI_STATUS_SHIFT;
2885 resCount = FWOHCI_DMA_READ(db_tr->db[0].db.desc.res)
2887 /* XXX check buffer overrun */
2890 dbch->buf_offset = dbch->xferq.psize - resCount;
2893 /* XXX make sure DMA is not dead */
2897 printf("fwohci_arcv: no packets\n");