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.
45 #include <sys/param.h>
46 #include <sys/systm.h>
48 #include <sys/malloc.h>
49 #include <sys/sockio.h>
50 #include <sys/sysctl.h>
52 #include <sys/kernel.h>
54 #include <sys/endian.h>
57 #include <machine/bus.h>
59 #if defined(__DragonFly__) || __FreeBSD_version < 500000
60 #include <machine/clock.h> /* for DELAY() */
65 #include "firewirereg.h"
67 #include "fwohcireg.h"
68 #include "fwohcivar.h"
69 #include "firewire_phy.h"
71 #include <dev/firewire/firewire.h>
72 #include <dev/firewire/firewirereg.h>
73 #include <dev/firewire/fwdma.h>
74 #include <dev/firewire/fwohcireg.h>
75 #include <dev/firewire/fwohcivar.h>
76 #include <dev/firewire/firewire_phy.h>
81 static int nocyclemaster;
82 int firewire_phydma_enable = 1;
83 SYSCTL_DECL(_hw_firewire);
84 SYSCTL_INT(_hw_firewire, OID_AUTO, nocyclemaster, CTLFLAG_RWTUN,
85 &nocyclemaster, 0, "Do not send cycle start packets");
86 SYSCTL_INT(_hw_firewire, OID_AUTO, phydma_enable, CTLFLAG_RWTUN,
87 &firewire_phydma_enable, 0, "Allow physical request DMA from firewire");
89 static char dbcode[16][0x10]={"OUTM", "OUTL","INPM","INPL",
90 "STOR","LOAD","NOP ","STOP",};
92 static char dbkey[8][0x10]={"ST0", "ST1","ST2","ST3",
93 "UNDEF","REG","SYS","DEV"};
94 static char dbcond[4][0x10]={"NEV","C=1", "C=0", "ALL"};
95 char fwohcicode[32][0x20]={
96 "No stat","Undef","long","miss Ack err",
97 "FIFO underrun","FIFO overrun","desc err", "data read err",
98 "data write err","bus reset","timeout","tcode err",
99 "Undef","Undef","unknown event","flushed",
100 "Undef","ack complete","ack pend","Undef",
101 "ack busy_X","ack busy_A","ack busy_B","Undef",
102 "Undef","Undef","Undef","ack tardy",
103 "Undef","ack data_err","ack type_err",""};
106 extern char *linkspeed[];
107 uint32_t tagbit[4] = { 1 << 28, 1 << 29, 1 << 30, 1 << 31};
109 static struct tcode_info tinfo[] = {
110 /* hdr_len block flag valid_response */
111 /* 0 WREQQ */ {16, FWTI_REQ | FWTI_TLABEL, FWTCODE_WRES},
112 /* 1 WREQB */ {16, FWTI_REQ | FWTI_TLABEL | FWTI_BLOCK_ASY, FWTCODE_WRES},
113 /* 2 WRES */ {12, FWTI_RES, 0xff},
114 /* 3 XXX */ { 0, 0, 0xff},
115 /* 4 RREQQ */ {12, FWTI_REQ | FWTI_TLABEL, FWTCODE_RRESQ},
116 /* 5 RREQB */ {16, FWTI_REQ | FWTI_TLABEL, FWTCODE_RRESB},
117 /* 6 RRESQ */ {16, FWTI_RES, 0xff},
118 /* 7 RRESB */ {16, FWTI_RES | FWTI_BLOCK_ASY, 0xff},
119 /* 8 CYCS */ { 0, 0, 0xff},
120 /* 9 LREQ */ {16, FWTI_REQ | FWTI_TLABEL | FWTI_BLOCK_ASY, FWTCODE_LRES},
121 /* a STREAM */ { 4, FWTI_REQ | FWTI_BLOCK_STR, 0xff},
122 /* b LRES */ {16, FWTI_RES | FWTI_BLOCK_ASY, 0xff},
123 /* c XXX */ { 0, 0, 0xff},
124 /* d XXX */ { 0, 0, 0xff},
125 /* e PHY */ {12, FWTI_REQ, 0xff},
126 /* f XXX */ { 0, 0, 0xff}
129 #define OHCI_WRITE_SIGMASK 0xffff0000
130 #define OHCI_READ_SIGMASK 0xffff0000
132 #define OWRITE(sc, r, x) bus_space_write_4((sc)->bst, (sc)->bsh, (r), (x))
133 #define OREAD(sc, r) bus_space_read_4((sc)->bst, (sc)->bsh, (r))
135 static void fwohci_ibr (struct firewire_comm *);
136 static void fwohci_db_init (struct fwohci_softc *, struct fwohci_dbch *);
137 static void fwohci_db_free (struct fwohci_dbch *);
138 static void fwohci_arcv (struct fwohci_softc *, struct fwohci_dbch *, int);
139 static void fwohci_txd (struct fwohci_softc *, struct fwohci_dbch *);
140 static void fwohci_start_atq (struct firewire_comm *);
141 static void fwohci_start_ats (struct firewire_comm *);
142 static void fwohci_start (struct fwohci_softc *, struct fwohci_dbch *);
143 static uint32_t fwphy_wrdata ( struct fwohci_softc *, uint32_t, uint32_t);
144 static uint32_t fwphy_rddata ( struct fwohci_softc *, uint32_t);
145 static int fwohci_rx_enable (struct fwohci_softc *, struct fwohci_dbch *);
146 static int fwohci_tx_enable (struct fwohci_softc *, struct fwohci_dbch *);
147 static int fwohci_irx_enable (struct firewire_comm *, int);
148 static int fwohci_irx_disable (struct firewire_comm *, int);
149 #if BYTE_ORDER == BIG_ENDIAN
150 static void fwohci_irx_post (struct firewire_comm *, uint32_t *);
152 static int fwohci_itxbuf_enable (struct firewire_comm *, int);
153 static int fwohci_itx_disable (struct firewire_comm *, int);
154 static void fwohci_timeout (void *);
155 static void fwohci_set_intr (struct firewire_comm *, int);
157 static int fwohci_add_rx_buf (struct fwohci_dbch *, struct fwohcidb_tr *, int, struct fwdma_alloc *);
158 static int fwohci_add_tx_buf (struct fwohci_dbch *, struct fwohcidb_tr *, int);
159 static void dump_db (struct fwohci_softc *, uint32_t);
160 static void print_db (struct fwohcidb_tr *, struct fwohcidb *, uint32_t , uint32_t);
161 static void dump_dma (struct fwohci_softc *, uint32_t);
162 static uint32_t fwohci_cyctimer (struct firewire_comm *);
163 static void fwohci_rbuf_update (struct fwohci_softc *, int);
164 static void fwohci_tbuf_update (struct fwohci_softc *, int);
165 void fwohci_txbufdb (struct fwohci_softc *, int , struct fw_bulkxfer *);
166 static void fwohci_task_busreset(void *, int);
167 static void fwohci_task_sid(void *, int);
168 static void fwohci_task_dma(void *, int);
171 * memory allocated for DMA programs
173 #define DMA_PROG_ALLOC (8 * PAGE_SIZE)
175 #define NDB FWMAXQUEUE
177 #define OHCI_VERSION 0x00
178 #define OHCI_ATRETRY 0x08
179 #define OHCI_CROMHDR 0x18
180 #define OHCI_BUS_OPT 0x20
181 #define OHCI_BUSIRMC (1U << 31)
182 #define OHCI_BUSCMC (1 << 30)
183 #define OHCI_BUSISC (1 << 29)
184 #define OHCI_BUSBMC (1 << 28)
185 #define OHCI_BUSPMC (1 << 27)
186 #define OHCI_BUSFNC OHCI_BUSIRMC | OHCI_BUSCMC | OHCI_BUSISC |\
187 OHCI_BUSBMC | OHCI_BUSPMC
189 #define OHCI_EUID_HI 0x24
190 #define OHCI_EUID_LO 0x28
192 #define OHCI_CROMPTR 0x34
193 #define OHCI_HCCCTL 0x50
194 #define OHCI_HCCCTLCLR 0x54
195 #define OHCI_AREQHI 0x100
196 #define OHCI_AREQHICLR 0x104
197 #define OHCI_AREQLO 0x108
198 #define OHCI_AREQLOCLR 0x10c
199 #define OHCI_PREQHI 0x110
200 #define OHCI_PREQHICLR 0x114
201 #define OHCI_PREQLO 0x118
202 #define OHCI_PREQLOCLR 0x11c
203 #define OHCI_PREQUPPER 0x120
205 #define OHCI_SID_BUF 0x64
206 #define OHCI_SID_CNT 0x68
207 #define OHCI_SID_ERR (1U << 31)
208 #define OHCI_SID_CNT_MASK 0xffc
210 #define OHCI_IT_STAT 0x90
211 #define OHCI_IT_STATCLR 0x94
212 #define OHCI_IT_MASK 0x98
213 #define OHCI_IT_MASKCLR 0x9c
215 #define OHCI_IR_STAT 0xa0
216 #define OHCI_IR_STATCLR 0xa4
217 #define OHCI_IR_MASK 0xa8
218 #define OHCI_IR_MASKCLR 0xac
220 #define OHCI_LNKCTL 0xe0
221 #define OHCI_LNKCTLCLR 0xe4
223 #define OHCI_PHYACCESS 0xec
224 #define OHCI_CYCLETIMER 0xf0
226 #define OHCI_DMACTL(off) (off)
227 #define OHCI_DMACTLCLR(off) (off + 4)
228 #define OHCI_DMACMD(off) (off + 0xc)
229 #define OHCI_DMAMATCH(off) (off + 0x10)
231 #define OHCI_ATQOFF 0x180
232 #define OHCI_ATQCTL OHCI_ATQOFF
233 #define OHCI_ATQCTLCLR (OHCI_ATQOFF + 4)
234 #define OHCI_ATQCMD (OHCI_ATQOFF + 0xc)
235 #define OHCI_ATQMATCH (OHCI_ATQOFF + 0x10)
237 #define OHCI_ATSOFF 0x1a0
238 #define OHCI_ATSCTL OHCI_ATSOFF
239 #define OHCI_ATSCTLCLR (OHCI_ATSOFF + 4)
240 #define OHCI_ATSCMD (OHCI_ATSOFF + 0xc)
241 #define OHCI_ATSMATCH (OHCI_ATSOFF + 0x10)
243 #define OHCI_ARQOFF 0x1c0
244 #define OHCI_ARQCTL OHCI_ARQOFF
245 #define OHCI_ARQCTLCLR (OHCI_ARQOFF + 4)
246 #define OHCI_ARQCMD (OHCI_ARQOFF + 0xc)
247 #define OHCI_ARQMATCH (OHCI_ARQOFF + 0x10)
249 #define OHCI_ARSOFF 0x1e0
250 #define OHCI_ARSCTL OHCI_ARSOFF
251 #define OHCI_ARSCTLCLR (OHCI_ARSOFF + 4)
252 #define OHCI_ARSCMD (OHCI_ARSOFF + 0xc)
253 #define OHCI_ARSMATCH (OHCI_ARSOFF + 0x10)
255 #define OHCI_ITOFF(CH) (0x200 + 0x10 * (CH))
256 #define OHCI_ITCTL(CH) (OHCI_ITOFF(CH))
257 #define OHCI_ITCTLCLR(CH) (OHCI_ITOFF(CH) + 4)
258 #define OHCI_ITCMD(CH) (OHCI_ITOFF(CH) + 0xc)
260 #define OHCI_IROFF(CH) (0x400 + 0x20 * (CH))
261 #define OHCI_IRCTL(CH) (OHCI_IROFF(CH))
262 #define OHCI_IRCTLCLR(CH) (OHCI_IROFF(CH) + 4)
263 #define OHCI_IRCMD(CH) (OHCI_IROFF(CH) + 0xc)
264 #define OHCI_IRMATCH(CH) (OHCI_IROFF(CH) + 0x10)
266 d_ioctl_t fwohci_ioctl;
269 * Communication with PHY device
271 /* XXX need lock for phy access */
273 fwphy_wrdata( struct fwohci_softc *sc, uint32_t addr, uint32_t data)
280 fun = (PHYDEV_WRCMD | (addr << PHYDEV_REGADDR) | (data << PHYDEV_WRDATA));
281 OWRITE(sc, OHCI_PHYACCESS, fun);
284 return(fwphy_rddata( sc, addr));
288 fwohci_set_bus_manager(struct firewire_comm *fc, u_int node)
290 struct fwohci_softc *sc = (struct fwohci_softc *)fc;
294 #define OHCI_CSR_DATA 0x0c
295 #define OHCI_CSR_COMP 0x10
296 #define OHCI_CSR_CONT 0x14
297 #define OHCI_BUS_MANAGER_ID 0
299 OWRITE(sc, OHCI_CSR_DATA, node);
300 OWRITE(sc, OHCI_CSR_COMP, 0x3f);
301 OWRITE(sc, OHCI_CSR_CONT, OHCI_BUS_MANAGER_ID);
302 for (i = 0; !(OREAD(sc, OHCI_CSR_CONT) & (1<<31)) && (i < 1000); i++)
304 bm = OREAD(sc, OHCI_CSR_DATA);
305 if((bm & 0x3f) == 0x3f)
308 device_printf(sc->fc.dev, "%s: %d->%d (loop=%d)\n",
309 __func__, bm, node, i);
315 fwphy_rddata(struct fwohci_softc *sc, u_int addr)
321 #define MAX_RETRY 100
323 OWRITE(sc, FWOHCI_INTSTATCLR, OHCI_INT_REG_FAIL);
324 fun = PHYDEV_RDCMD | (addr << PHYDEV_REGADDR);
325 OWRITE(sc, OHCI_PHYACCESS, fun);
326 for ( i = 0 ; i < MAX_RETRY ; i ++ ){
327 fun = OREAD(sc, OHCI_PHYACCESS);
328 if ((fun & PHYDEV_RDCMD) == 0 && (fun & PHYDEV_RDDONE) != 0)
334 device_printf(sc->fc.dev, "%s: failed(1).\n", __func__);
335 if (++retry < MAX_RETRY) {
340 /* Make sure that SCLK is started */
341 stat = OREAD(sc, FWOHCI_INTSTAT);
342 if ((stat & OHCI_INT_REG_FAIL) != 0 ||
343 ((fun >> PHYDEV_REGADDR) & 0xf) != addr) {
345 device_printf(sc->fc.dev, "%s: failed(2).\n", __func__);
346 if (++retry < MAX_RETRY) {
351 if (firewire_debug > 1 || retry >= MAX_RETRY)
352 device_printf(sc->fc.dev,
353 "%s:: 0x%x loop=%d, retry=%d\n",
354 __func__, addr, i, retry);
356 return((fun >> PHYDEV_RDDATA )& 0xff);
358 /* Device specific ioctl. */
360 fwohci_ioctl (struct cdev *dev, u_long cmd, caddr_t data, int flag, fw_proc *td)
362 struct firewire_softc *sc;
363 struct fwohci_softc *fc;
364 int unit = DEV2UNIT(dev);
366 struct fw_reg_req_t *reg = (struct fw_reg_req_t *) data;
367 uint32_t *dmach = (uint32_t *) data;
369 sc = devclass_get_softc(firewire_devclass, unit);
373 fc = (struct fwohci_softc *)sc->fc;
380 #define OHCI_MAX_REG 0x800
381 if(reg->addr <= OHCI_MAX_REG){
382 OWRITE(fc, reg->addr, reg->data);
383 reg->data = OREAD(fc, reg->addr);
389 if(reg->addr <= OHCI_MAX_REG){
390 reg->data = OREAD(fc, reg->addr);
395 /* Read DMA descriptors for debug */
397 if(*dmach <= OHCI_MAX_DMA_CH ){
398 dump_dma(fc, *dmach);
404 /* Read/Write Phy registers */
405 #define OHCI_MAX_PHY_REG 0xf
406 case FWOHCI_RDPHYREG:
407 if (reg->addr <= OHCI_MAX_PHY_REG)
408 reg->data = fwphy_rddata(fc, reg->addr);
412 case FWOHCI_WRPHYREG:
413 if (reg->addr <= OHCI_MAX_PHY_REG)
414 reg->data = fwphy_wrdata(fc, reg->addr, reg->data);
426 fwohci_probe_phy(struct fwohci_softc *sc, device_t dev)
431 * probe PHY parameters
432 * 0. to prove PHY version, whether compliance of 1394a.
433 * 1. to probe maximum speed supported by the PHY and
434 * number of port supported by core-logic.
435 * It is not actually available port on your PC .
437 OWRITE(sc, OHCI_HCCCTL, OHCI_HCC_LPS);
440 reg = fwphy_rddata(sc, FW_PHY_SPD_REG);
442 if((reg >> 5) != 7 ){
443 sc->fc.mode &= ~FWPHYASYST;
444 sc->fc.nport = reg & FW_PHY_NP;
445 sc->fc.speed = reg & FW_PHY_SPD >> 6;
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 1394 only %s, %d ports.\n",
453 linkspeed[sc->fc.speed], sc->fc.nport);
455 reg2 = fwphy_rddata(sc, FW_PHY_ESPD_REG);
456 sc->fc.mode |= FWPHYASYST;
457 sc->fc.nport = reg & FW_PHY_NP;
458 sc->fc.speed = (reg2 & FW_PHY_ESPD) >> 5;
459 if (sc->fc.speed > MAX_SPEED) {
460 device_printf(dev, "invalid speed %d (fixed to %d).\n",
461 sc->fc.speed, MAX_SPEED);
462 sc->fc.speed = MAX_SPEED;
465 "Phy 1394a available %s, %d ports.\n",
466 linkspeed[sc->fc.speed], sc->fc.nport);
468 /* check programPhyEnable */
469 reg2 = fwphy_rddata(sc, 5);
471 if (e1394a && (OREAD(sc, OHCI_HCCCTL) & OHCI_HCC_PRPHY)) {
472 #else /* XXX force to enable 1394a */
477 "Enable 1394a Enhancements\n");
480 /* set aPhyEnhanceEnable */
481 OWRITE(sc, OHCI_HCCCTL, OHCI_HCC_PHYEN);
482 OWRITE(sc, OHCI_HCCCTLCLR, OHCI_HCC_PRPHY);
487 reg2 = fwphy_wrdata(sc, 5, reg2);
490 reg = fwphy_rddata(sc, FW_PHY_SPD_REG);
491 if((reg >> 5) == 7 ){
492 reg = fwphy_rddata(sc, 4);
494 fwphy_wrdata(sc, 4, reg);
495 reg = fwphy_rddata(sc, 4);
502 fwohci_reset(struct fwohci_softc *sc, device_t dev)
504 int i, max_rec, speed;
506 struct fwohcidb_tr *db_tr;
508 /* Disable interrupts */
509 OWRITE(sc, FWOHCI_INTMASKCLR, ~0);
511 /* Now stopping all DMA channels */
512 OWRITE(sc, OHCI_ARQCTLCLR, OHCI_CNTL_DMA_RUN);
513 OWRITE(sc, OHCI_ARSCTLCLR, OHCI_CNTL_DMA_RUN);
514 OWRITE(sc, OHCI_ATQCTLCLR, OHCI_CNTL_DMA_RUN);
515 OWRITE(sc, OHCI_ATSCTLCLR, OHCI_CNTL_DMA_RUN);
517 OWRITE(sc, OHCI_IR_MASKCLR, ~0);
518 for( i = 0 ; i < sc->fc.nisodma ; i ++ ){
519 OWRITE(sc, OHCI_IRCTLCLR(i), OHCI_CNTL_DMA_RUN);
520 OWRITE(sc, OHCI_ITCTLCLR(i), OHCI_CNTL_DMA_RUN);
523 /* FLUSH FIFO and reset Transmitter/Reciever */
524 OWRITE(sc, OHCI_HCCCTL, OHCI_HCC_RESET);
526 device_printf(dev, "resetting OHCI...");
528 while(OREAD(sc, OHCI_HCCCTL) & OHCI_HCC_RESET) {
529 if (i++ > 100) break;
533 printf("done (loop=%d)\n", i);
536 fwohci_probe_phy(sc, dev);
539 reg = OREAD(sc, OHCI_BUS_OPT);
540 reg2 = reg | OHCI_BUSFNC;
541 max_rec = (reg & 0x0000f000) >> 12;
542 speed = (reg & 0x00000007);
543 device_printf(dev, "Link %s, max_rec %d bytes.\n",
544 linkspeed[speed], MAXREC(max_rec));
545 /* XXX fix max_rec */
546 sc->fc.maxrec = sc->fc.speed + 8;
547 if (max_rec != sc->fc.maxrec) {
548 reg2 = (reg2 & 0xffff0fff) | (sc->fc.maxrec << 12);
549 device_printf(dev, "max_rec %d -> %d\n",
550 MAXREC(max_rec), MAXREC(sc->fc.maxrec));
553 device_printf(dev, "BUS_OPT 0x%x -> 0x%x\n", reg, reg2);
554 OWRITE(sc, OHCI_BUS_OPT, reg2);
556 /* Initialize registers */
557 OWRITE(sc, OHCI_CROMHDR, sc->fc.config_rom[0]);
558 OWRITE(sc, OHCI_CROMPTR, sc->crom_dma.bus_addr);
559 OWRITE(sc, OHCI_HCCCTLCLR, OHCI_HCC_BIGEND);
560 OWRITE(sc, OHCI_HCCCTL, OHCI_HCC_POSTWR);
561 OWRITE(sc, OHCI_SID_BUF, sc->sid_dma.bus_addr);
562 OWRITE(sc, OHCI_LNKCTL, OHCI_CNTL_SID);
565 OWRITE(sc, OHCI_HCCCTL, OHCI_HCC_LINKEN);
567 /* Force to start async RX DMA */
568 sc->arrq.xferq.flag &= ~FWXFERQ_RUNNING;
569 sc->arrs.xferq.flag &= ~FWXFERQ_RUNNING;
570 fwohci_rx_enable(sc, &sc->arrq);
571 fwohci_rx_enable(sc, &sc->arrs);
573 /* Initialize async TX */
574 OWRITE(sc, OHCI_ATQCTLCLR, OHCI_CNTL_DMA_RUN | OHCI_CNTL_DMA_DEAD);
575 OWRITE(sc, OHCI_ATSCTLCLR, OHCI_CNTL_DMA_RUN | OHCI_CNTL_DMA_DEAD);
578 OWRITE(sc, FWOHCI_RETRY,
579 /* CycleLimit PhyRespRetries ATRespRetries ATReqRetries */
580 (0xffff << 16 ) | (0x0f << 8) | (0x0f << 4) | 0x0f) ;
582 sc->atrq.top = STAILQ_FIRST(&sc->atrq.db_trq);
583 sc->atrs.top = STAILQ_FIRST(&sc->atrs.db_trq);
584 sc->atrq.bottom = sc->atrq.top;
585 sc->atrs.bottom = sc->atrs.top;
587 for( i = 0, db_tr = sc->atrq.top; i < sc->atrq.ndb ;
588 i ++, db_tr = STAILQ_NEXT(db_tr, link)){
591 for( i = 0, db_tr = sc->atrs.top; i < sc->atrs.ndb ;
592 i ++, db_tr = STAILQ_NEXT(db_tr, link)){
597 /* Enable interrupts */
598 sc->intmask = (OHCI_INT_ERR | OHCI_INT_PHY_SID
599 | OHCI_INT_DMA_ATRQ | OHCI_INT_DMA_ATRS
600 | OHCI_INT_DMA_PRRQ | OHCI_INT_DMA_PRRS
601 | OHCI_INT_PHY_BUS_R | OHCI_INT_PW_ERR);
602 sc->intmask |= OHCI_INT_DMA_IR | OHCI_INT_DMA_IT;
603 sc->intmask |= OHCI_INT_CYC_LOST | OHCI_INT_PHY_INT;
604 OWRITE(sc, FWOHCI_INTMASK, sc->intmask);
605 fwohci_set_intr(&sc->fc, 1);
610 fwohci_init(struct fwohci_softc *sc, device_t dev)
617 reg = OREAD(sc, OHCI_VERSION);
618 mver = (reg >> 16) & 0xff;
619 device_printf(dev, "OHCI version %x.%x (ROM=%d)\n",
620 mver, reg & 0xff, (reg>>24) & 1);
621 if (mver < 1 || mver > 9) {
622 device_printf(dev, "invalid OHCI version\n");
626 /* Available Isochronous DMA channel probe */
627 OWRITE(sc, OHCI_IT_MASK, 0xffffffff);
628 OWRITE(sc, OHCI_IR_MASK, 0xffffffff);
629 reg = OREAD(sc, OHCI_IT_MASK) & OREAD(sc, OHCI_IR_MASK);
630 OWRITE(sc, OHCI_IT_MASKCLR, 0xffffffff);
631 OWRITE(sc, OHCI_IR_MASKCLR, 0xffffffff);
632 for (i = 0; i < 0x20; i++)
633 if ((reg & (1 << i)) == 0)
636 device_printf(dev, "No. of Isochronous channels is %d.\n", i);
640 sc->fc.arq = &sc->arrq.xferq;
641 sc->fc.ars = &sc->arrs.xferq;
642 sc->fc.atq = &sc->atrq.xferq;
643 sc->fc.ats = &sc->atrs.xferq;
645 sc->arrq.xferq.psize = roundup2(FWPMAX_S400, PAGE_SIZE);
646 sc->arrs.xferq.psize = roundup2(FWPMAX_S400, PAGE_SIZE);
647 sc->atrq.xferq.psize = roundup2(FWPMAX_S400, PAGE_SIZE);
648 sc->atrs.xferq.psize = roundup2(FWPMAX_S400, PAGE_SIZE);
650 sc->arrq.xferq.start = NULL;
651 sc->arrs.xferq.start = NULL;
652 sc->atrq.xferq.start = fwohci_start_atq;
653 sc->atrs.xferq.start = fwohci_start_ats;
655 sc->arrq.xferq.buf = NULL;
656 sc->arrs.xferq.buf = NULL;
657 sc->atrq.xferq.buf = NULL;
658 sc->atrs.xferq.buf = NULL;
660 sc->arrq.xferq.dmach = -1;
661 sc->arrs.xferq.dmach = -1;
662 sc->atrq.xferq.dmach = -1;
663 sc->atrs.xferq.dmach = -1;
667 sc->atrq.ndesc = 8; /* equal to maximum of mbuf chains */
671 sc->arrs.ndb = NDB / 2;
673 sc->atrs.ndb = NDB / 2;
675 for( i = 0 ; i < sc->fc.nisodma ; i ++ ){
676 sc->fc.it[i] = &sc->it[i].xferq;
677 sc->fc.ir[i] = &sc->ir[i].xferq;
678 sc->it[i].xferq.dmach = i;
679 sc->ir[i].xferq.dmach = i;
684 sc->fc.tcode = tinfo;
687 sc->fc.config_rom = fwdma_malloc(&sc->fc, CROMSIZE, CROMSIZE,
688 &sc->crom_dma, BUS_DMA_WAITOK | BUS_DMA_COHERENT);
689 if(sc->fc.config_rom == NULL){
690 device_printf(dev, "config_rom alloc failed.");
695 bzero(&sc->fc.config_rom[0], CROMSIZE);
696 sc->fc.config_rom[1] = 0x31333934;
697 sc->fc.config_rom[2] = 0xf000a002;
698 sc->fc.config_rom[3] = OREAD(sc, OHCI_EUID_HI);
699 sc->fc.config_rom[4] = OREAD(sc, OHCI_EUID_LO);
700 sc->fc.config_rom[5] = 0;
701 sc->fc.config_rom[0] = (4 << 24) | (5 << 16);
703 sc->fc.config_rom[0] |= fw_crc16(&sc->fc.config_rom[1], 5*4);
707 /* SID recieve buffer must align 2^11 */
708 #define OHCI_SIDSIZE (1 << 11)
709 sc->sid_buf = fwdma_malloc(&sc->fc, OHCI_SIDSIZE, OHCI_SIDSIZE,
710 &sc->sid_dma, BUS_DMA_WAITOK | BUS_DMA_COHERENT);
711 if (sc->sid_buf == NULL) {
712 device_printf(dev, "sid_buf alloc failed.");
716 fwdma_malloc(&sc->fc, sizeof(uint32_t), sizeof(uint32_t),
717 &sc->dummy_dma, BUS_DMA_WAITOK);
719 if (sc->dummy_dma.v_addr == NULL) {
720 device_printf(dev, "dummy_dma alloc failed.");
724 fwohci_db_init(sc, &sc->arrq);
725 if ((sc->arrq.flags & FWOHCI_DBCH_INIT) == 0)
728 fwohci_db_init(sc, &sc->arrs);
729 if ((sc->arrs.flags & FWOHCI_DBCH_INIT) == 0)
732 fwohci_db_init(sc, &sc->atrq);
733 if ((sc->atrq.flags & FWOHCI_DBCH_INIT) == 0)
736 fwohci_db_init(sc, &sc->atrs);
737 if ((sc->atrs.flags & FWOHCI_DBCH_INIT) == 0)
740 sc->fc.eui.hi = OREAD(sc, FWOHCIGUID_H);
741 sc->fc.eui.lo = OREAD(sc, FWOHCIGUID_L);
742 for( i = 0 ; i < 8 ; i ++)
743 ui[i] = FW_EUI64_BYTE(&sc->fc.eui,i);
744 device_printf(dev, "EUI64 %02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x\n",
745 ui[0], ui[1], ui[2], ui[3], ui[4], ui[5], ui[6], ui[7]);
747 sc->fc.ioctl = fwohci_ioctl;
748 sc->fc.cyctimer = fwohci_cyctimer;
749 sc->fc.set_bmr = fwohci_set_bus_manager;
750 sc->fc.ibr = fwohci_ibr;
751 sc->fc.irx_enable = fwohci_irx_enable;
752 sc->fc.irx_disable = fwohci_irx_disable;
754 sc->fc.itx_enable = fwohci_itxbuf_enable;
755 sc->fc.itx_disable = fwohci_itx_disable;
756 #if BYTE_ORDER == BIG_ENDIAN
757 sc->fc.irx_post = fwohci_irx_post;
759 sc->fc.irx_post = NULL;
761 sc->fc.itx_post = NULL;
762 sc->fc.timeout = fwohci_timeout;
763 sc->fc.poll = fwohci_poll;
764 sc->fc.set_intr = fwohci_set_intr;
766 sc->intmask = sc->irstat = sc->itstat = 0;
768 /* Init task queue */
769 sc->fc.taskqueue = taskqueue_create_fast("fw_taskq", M_WAITOK,
770 taskqueue_thread_enqueue, &sc->fc.taskqueue);
771 taskqueue_start_threads(&sc->fc.taskqueue, 1, PI_NET, "fw%d_taskq",
772 device_get_unit(dev));
773 TASK_INIT(&sc->fwohci_task_busreset, 2, fwohci_task_busreset, sc);
774 TASK_INIT(&sc->fwohci_task_sid, 1, fwohci_task_sid, sc);
775 TASK_INIT(&sc->fwohci_task_dma, 0, fwohci_task_dma, sc);
778 fwohci_reset(sc, dev);
784 fwohci_timeout(void *arg)
786 struct fwohci_softc *sc;
788 sc = (struct fwohci_softc *)arg;
792 fwohci_cyctimer(struct firewire_comm *fc)
794 struct fwohci_softc *sc = (struct fwohci_softc *)fc;
795 return(OREAD(sc, OHCI_CYCLETIMER));
799 fwohci_detach(struct fwohci_softc *sc, device_t dev)
803 if (sc->sid_buf != NULL)
804 fwdma_free(&sc->fc, &sc->sid_dma);
805 if (sc->fc.config_rom != NULL)
806 fwdma_free(&sc->fc, &sc->crom_dma);
808 fwohci_db_free(&sc->arrq);
809 fwohci_db_free(&sc->arrs);
811 fwohci_db_free(&sc->atrq);
812 fwohci_db_free(&sc->atrs);
814 for( i = 0 ; i < sc->fc.nisodma ; i ++ ){
815 fwohci_db_free(&sc->it[i]);
816 fwohci_db_free(&sc->ir[i]);
818 if (sc->fc.taskqueue != NULL) {
819 taskqueue_drain(sc->fc.taskqueue, &sc->fwohci_task_busreset);
820 taskqueue_drain(sc->fc.taskqueue, &sc->fwohci_task_sid);
821 taskqueue_drain(sc->fc.taskqueue, &sc->fwohci_task_dma);
822 taskqueue_drain(sc->fc.taskqueue, &sc->fc.task_timeout);
823 taskqueue_free(sc->fc.taskqueue);
824 sc->fc.taskqueue = NULL;
830 #define LAST_DB(dbtr, db) do { \
831 struct fwohcidb_tr *_dbtr = (dbtr); \
832 int _cnt = _dbtr->dbcnt; \
833 db = &_dbtr->db[ (_cnt > 2) ? (_cnt -1) : 0]; \
837 fwohci_execute_db(void *arg, bus_dma_segment_t *segs, int nseg, int error)
839 struct fwohcidb_tr *db_tr;
841 bus_dma_segment_t *s;
844 db_tr = (struct fwohcidb_tr *)arg;
845 db = &db_tr->db[db_tr->dbcnt];
847 if (firewire_debug || error != EFBIG)
848 printf("fwohci_execute_db: error=%d\n", error);
851 for (i = 0; i < nseg; i++) {
853 FWOHCI_DMA_WRITE(db->db.desc.addr, s->ds_addr);
854 FWOHCI_DMA_WRITE(db->db.desc.cmd, s->ds_len);
855 FWOHCI_DMA_WRITE(db->db.desc.res, 0);
862 fwohci_execute_db2(void *arg, bus_dma_segment_t *segs, int nseg,
863 bus_size_t size, int error)
865 fwohci_execute_db(arg, segs, nseg, error);
869 fwohci_start(struct fwohci_softc *sc, struct fwohci_dbch *dbch)
872 int tcode, hdr_len, pl_off;
875 struct fw_xfer *xfer;
877 struct fwohci_txpkthdr *ohcifp;
878 struct fwohcidb_tr *db_tr;
881 struct tcode_info *info;
882 static int maxdesc=0;
884 FW_GLOCK_ASSERT(&sc->fc);
886 if(&sc->atrq == dbch){
888 }else if(&sc->atrs == dbch){
894 if (dbch->flags & FWOHCI_DBCH_FULL)
900 xfer = STAILQ_FIRST(&dbch->xferq.q);
905 if(dbch->xferq.queued == 0 ){
906 device_printf(sc->fc.dev, "TX queue empty\n");
909 STAILQ_REMOVE_HEAD(&dbch->xferq.q, link);
911 xfer->flag = FWXF_START;
913 fp = &xfer->send.hdr;
914 tcode = fp->mode.common.tcode;
916 ohcifp = (struct fwohci_txpkthdr *) db_tr->db[1].db.immed;
917 info = &tinfo[tcode];
918 hdr_len = pl_off = info->hdr_len;
920 ld = &ohcifp->mode.ld[0];
921 ld[0] = ld[1] = ld[2] = ld[3] = 0;
922 for( i = 0 ; i < pl_off ; i+= 4)
923 ld[i/4] = fp->mode.ld[i/4];
925 ohcifp->mode.common.spd = xfer->send.spd & 0x7;
926 if (tcode == FWTCODE_STREAM ){
928 ohcifp->mode.stream.len = fp->mode.stream.len;
929 } else if (tcode == FWTCODE_PHY) {
931 ld[1] = fp->mode.ld[1];
932 ld[2] = fp->mode.ld[2];
933 ohcifp->mode.common.spd = 0;
934 ohcifp->mode.common.tcode = FWOHCITCODE_PHY;
936 ohcifp->mode.asycomm.dst = fp->mode.hdr.dst;
937 ohcifp->mode.asycomm.srcbus = OHCI_ASYSRCBUS;
938 ohcifp->mode.asycomm.tlrt |= FWRETRY_X;
941 FWOHCI_DMA_WRITE(db->db.desc.cmd,
942 OHCI_OUTPUT_MORE | OHCI_KEY_ST2 | hdr_len);
943 FWOHCI_DMA_WRITE(db->db.desc.addr, 0);
944 FWOHCI_DMA_WRITE(db->db.desc.res, 0);
945 /* Specify bound timer of asy. responce */
946 if(&sc->atrs == dbch){
947 FWOHCI_DMA_WRITE(db->db.desc.res,
948 (OREAD(sc, OHCI_CYCLETIMER) >> 12) + (1 << 13));
950 #if BYTE_ORDER == BIG_ENDIAN
951 if (tcode == FWTCODE_WREQQ || tcode == FWTCODE_RRESQ)
953 for (i = 0; i < hdr_len/4; i ++)
954 FWOHCI_DMA_WRITE(ld[i], ld[i]);
959 db = &db_tr->db[db_tr->dbcnt];
960 if (xfer->send.pay_len > 0) {
963 if (xfer->mbuf == NULL) {
964 err = bus_dmamap_load(dbch->dmat, db_tr->dma_map,
965 &xfer->send.payload[0], xfer->send.pay_len,
966 fwohci_execute_db, db_tr,
969 /* XXX we can handle only 6 (=8-2) mbuf chains */
970 err = bus_dmamap_load_mbuf(dbch->dmat, db_tr->dma_map,
972 fwohci_execute_db2, db_tr,
978 device_printf(sc->fc.dev, "EFBIG.\n");
979 m0 = m_getcl(M_NOWAIT, MT_DATA, M_PKTHDR);
981 m_copydata(xfer->mbuf, 0,
982 xfer->mbuf->m_pkthdr.len,
984 m0->m_len = m0->m_pkthdr.len =
985 xfer->mbuf->m_pkthdr.len;
990 device_printf(sc->fc.dev, "m_getcl failed.\n");
994 printf("dmamap_load: err=%d\n", err);
995 bus_dmamap_sync(dbch->dmat, db_tr->dma_map,
996 BUS_DMASYNC_PREWRITE);
997 #if 0 /* OHCI_OUTPUT_MODE == 0 */
998 for (i = 2; i < db_tr->dbcnt; i++)
999 FWOHCI_DMA_SET(db_tr->db[i].db.desc.cmd,
1003 if (maxdesc < db_tr->dbcnt) {
1004 maxdesc = db_tr->dbcnt;
1006 device_printf(sc->fc.dev, "%s: maxdesc %d\n", __func__, maxdesc);
1010 FWOHCI_DMA_SET(db->db.desc.cmd,
1011 OHCI_OUTPUT_LAST | OHCI_INTERRUPT_ALWAYS | OHCI_BRANCH_ALWAYS);
1012 FWOHCI_DMA_WRITE(db->db.desc.depend,
1013 STAILQ_NEXT(db_tr, link)->bus_addr);
1016 fsegment = db_tr->dbcnt;
1017 if (dbch->pdb_tr != NULL) {
1018 LAST_DB(dbch->pdb_tr, db);
1019 FWOHCI_DMA_SET(db->db.desc.depend, db_tr->dbcnt);
1021 dbch->xferq.queued ++;
1022 dbch->pdb_tr = db_tr;
1023 db_tr = STAILQ_NEXT(db_tr, link);
1024 if(db_tr != dbch->bottom){
1027 device_printf(sc->fc.dev, "fwohci_start: lack of db_trq\n");
1028 dbch->flags |= FWOHCI_DBCH_FULL;
1032 fwdma_sync_multiseg_all(dbch->am, BUS_DMASYNC_PREREAD);
1033 fwdma_sync_multiseg_all(dbch->am, BUS_DMASYNC_PREWRITE);
1035 if(dbch->xferq.flag & FWXFERQ_RUNNING) {
1036 OWRITE(sc, OHCI_DMACTL(off), OHCI_CNTL_DMA_WAKE);
1039 device_printf(sc->fc.dev, "start AT DMA status=%x\n",
1040 OREAD(sc, OHCI_DMACTL(off)));
1041 OWRITE(sc, OHCI_DMACMD(off), dbch->top->bus_addr | fsegment);
1042 OWRITE(sc, OHCI_DMACTL(off), OHCI_CNTL_DMA_RUN);
1043 dbch->xferq.flag |= FWXFERQ_RUNNING;
1052 fwohci_start_atq(struct firewire_comm *fc)
1054 struct fwohci_softc *sc = (struct fwohci_softc *)fc;
1056 fwohci_start( sc, &(sc->atrq));
1057 FW_GUNLOCK(&sc->fc);
1062 fwohci_start_ats(struct firewire_comm *fc)
1064 struct fwohci_softc *sc = (struct fwohci_softc *)fc;
1066 fwohci_start( sc, &(sc->atrs));
1067 FW_GUNLOCK(&sc->fc);
1072 fwohci_txd(struct fwohci_softc *sc, struct fwohci_dbch *dbch)
1075 struct fwohcidb_tr *tr;
1076 struct fwohcidb *db;
1077 struct fw_xfer *xfer;
1081 struct firewire_comm *fc = (struct firewire_comm *)sc;
1083 if(&sc->atrq == dbch){
1086 }else if(&sc->atrs == dbch){
1095 fwdma_sync_multiseg_all(dbch->am, BUS_DMASYNC_POSTREAD);
1096 fwdma_sync_multiseg_all(dbch->am, BUS_DMASYNC_POSTWRITE);
1097 while(dbch->xferq.queued > 0){
1099 status = FWOHCI_DMA_READ(db->db.desc.res) >> OHCI_STATUS_SHIFT;
1100 if(!(status & OHCI_CNTL_DMA_ACTIVE)){
1101 if (fc->status != FWBUSINIT)
1102 /* maybe out of order?? */
1105 bus_dmamap_sync(dbch->dmat, tr->dma_map,
1106 BUS_DMASYNC_POSTWRITE);
1107 bus_dmamap_unload(dbch->dmat, tr->dma_map);
1109 if (firewire_debug > 1)
1112 if(status & OHCI_CNTL_DMA_DEAD) {
1114 OWRITE(sc, OHCI_DMACTLCLR(off), OHCI_CNTL_DMA_RUN);
1115 device_printf(sc->fc.dev, "force reset AT FIFO\n");
1116 OWRITE(sc, OHCI_HCCCTLCLR, OHCI_HCC_LINKEN);
1117 OWRITE(sc, OHCI_HCCCTL, OHCI_HCC_LPS | OHCI_HCC_LINKEN);
1118 OWRITE(sc, OHCI_DMACTLCLR(off), OHCI_CNTL_DMA_RUN);
1120 stat = status & FWOHCIEV_MASK;
1122 case FWOHCIEV_ACKPEND:
1123 case FWOHCIEV_ACKCOMPL:
1126 case FWOHCIEV_ACKBSA:
1127 case FWOHCIEV_ACKBSB:
1128 case FWOHCIEV_ACKBSX:
1129 device_printf(sc->fc.dev, "txd err=%2x %s\n", stat, fwohcicode[stat]);
1132 case FWOHCIEV_FLUSHED:
1133 case FWOHCIEV_ACKTARD:
1134 device_printf(sc->fc.dev, "txd err=%2x %s\n", stat, fwohcicode[stat]);
1137 case FWOHCIEV_MISSACK:
1138 case FWOHCIEV_UNDRRUN:
1139 case FWOHCIEV_OVRRUN:
1140 case FWOHCIEV_DESCERR:
1141 case FWOHCIEV_DTRDERR:
1142 case FWOHCIEV_TIMEOUT:
1143 case FWOHCIEV_TCODERR:
1144 case FWOHCIEV_UNKNOWN:
1145 case FWOHCIEV_ACKDERR:
1146 case FWOHCIEV_ACKTERR:
1148 device_printf(sc->fc.dev, "txd err=%2x %s\n",
1149 stat, fwohcicode[stat]);
1153 if (tr->xfer != NULL) {
1155 if (xfer->flag & FWXF_RCVD) {
1158 printf("already rcvd\n");
1162 microtime(&xfer->tv);
1163 xfer->flag = FWXF_SENT;
1165 xfer->flag = FWXF_BUSY;
1167 xfer->recv.pay_len = 0;
1169 } else if (stat != FWOHCIEV_ACKPEND) {
1170 if (stat != FWOHCIEV_ACKCOMPL)
1171 xfer->flag = FWXF_SENTERR;
1173 xfer->recv.pay_len = 0;
1178 * The watchdog timer takes care of split
1179 * transcation timeout for ACKPEND case.
1182 printf("this shouldn't happen\n");
1185 dbch->xferq.queued --;
1190 tr = STAILQ_NEXT(tr, link);
1192 if (dbch->bottom == dbch->top) {
1193 /* we reaches the end of context program */
1194 if (firewire_debug && dbch->xferq.queued > 0)
1195 printf("queued > 0\n");
1200 if ((dbch->flags & FWOHCI_DBCH_FULL) && packets > 0) {
1201 printf("make free slot\n");
1202 dbch->flags &= ~FWOHCI_DBCH_FULL;
1204 fwohci_start(sc, dbch);
1211 fwohci_db_free(struct fwohci_dbch *dbch)
1213 struct fwohcidb_tr *db_tr;
1216 if ((dbch->flags & FWOHCI_DBCH_INIT) == 0)
1219 for(db_tr = STAILQ_FIRST(&dbch->db_trq), idb = 0; idb < dbch->ndb;
1220 db_tr = STAILQ_NEXT(db_tr, link), idb++){
1221 if ((dbch->xferq.flag & FWXFERQ_EXTBUF) == 0 &&
1222 db_tr->buf != NULL) {
1223 fwdma_free_size(dbch->dmat, db_tr->dma_map,
1224 db_tr->buf, dbch->xferq.psize);
1226 } else if (db_tr->dma_map != NULL)
1227 bus_dmamap_destroy(dbch->dmat, db_tr->dma_map);
1230 db_tr = STAILQ_FIRST(&dbch->db_trq);
1231 fwdma_free_multiseg(dbch->am);
1233 STAILQ_INIT(&dbch->db_trq);
1234 dbch->flags &= ~FWOHCI_DBCH_INIT;
1238 fwohci_db_init(struct fwohci_softc *sc, struct fwohci_dbch *dbch)
1241 struct fwohcidb_tr *db_tr;
1243 if ((dbch->flags & FWOHCI_DBCH_INIT) != 0)
1246 /* create dma_tag for buffers */
1247 #define MAX_REQCOUNT 0xffff
1248 if (bus_dma_tag_create(/*parent*/ sc->fc.dmat,
1249 /*alignment*/ 1, /*boundary*/ 0,
1250 /*lowaddr*/ BUS_SPACE_MAXADDR_32BIT,
1251 /*highaddr*/ BUS_SPACE_MAXADDR,
1252 /*filter*/NULL, /*filterarg*/NULL,
1253 /*maxsize*/ dbch->xferq.psize,
1254 /*nsegments*/ dbch->ndesc > 3 ? dbch->ndesc - 2 : 1,
1255 /*maxsegsz*/ MAX_REQCOUNT,
1257 #if defined(__FreeBSD__) && __FreeBSD_version >= 501102
1258 /*lockfunc*/busdma_lock_mutex,
1259 /*lockarg*/FW_GMTX(&sc->fc),
1264 /* allocate DB entries and attach one to each DMA channels */
1265 /* DB entry must start at 16 bytes bounary. */
1266 STAILQ_INIT(&dbch->db_trq);
1267 db_tr = (struct fwohcidb_tr *)
1268 malloc(sizeof(struct fwohcidb_tr) * dbch->ndb,
1269 M_FW, M_WAITOK | M_ZERO);
1271 printf("fwohci_db_init: malloc(1) failed\n");
1275 #define DB_SIZE(x) (sizeof(struct fwohcidb) * (x)->ndesc)
1276 dbch->am = fwdma_malloc_multiseg(&sc->fc, DB_SIZE(dbch),
1277 DB_SIZE(dbch), dbch->ndb, BUS_DMA_WAITOK);
1278 if (dbch->am == NULL) {
1279 printf("fwohci_db_init: fwdma_malloc_multiseg failed\n");
1283 /* Attach DB to DMA ch. */
1284 for(idb = 0 ; idb < dbch->ndb ; idb++){
1286 db_tr->db = (struct fwohcidb *)fwdma_v_addr(dbch->am, idb);
1287 db_tr->bus_addr = fwdma_bus_addr(dbch->am, idb);
1288 /* create dmamap for buffers */
1289 /* XXX do we need 4bytes alignment tag? */
1290 /* XXX don't alloc dma_map for AR */
1291 if (bus_dmamap_create(dbch->dmat, 0, &db_tr->dma_map) != 0) {
1292 printf("bus_dmamap_create failed\n");
1293 dbch->flags = FWOHCI_DBCH_INIT; /* XXX fake */
1294 fwohci_db_free(dbch);
1297 STAILQ_INSERT_TAIL(&dbch->db_trq, db_tr, link);
1298 if (dbch->xferq.flag & FWXFERQ_EXTBUF) {
1299 if (idb % dbch->xferq.bnpacket == 0)
1300 dbch->xferq.bulkxfer[idb / dbch->xferq.bnpacket
1301 ].start = (caddr_t)db_tr;
1302 if ((idb + 1) % dbch->xferq.bnpacket == 0)
1303 dbch->xferq.bulkxfer[idb / dbch->xferq.bnpacket
1304 ].end = (caddr_t)db_tr;
1308 STAILQ_LAST(&dbch->db_trq, fwohcidb_tr,link)->link.stqe_next
1309 = STAILQ_FIRST(&dbch->db_trq);
1311 dbch->xferq.queued = 0;
1312 dbch->pdb_tr = NULL;
1313 dbch->top = STAILQ_FIRST(&dbch->db_trq);
1314 dbch->bottom = dbch->top;
1315 dbch->flags = FWOHCI_DBCH_INIT;
1319 fwohci_itx_disable(struct firewire_comm *fc, int dmach)
1321 struct fwohci_softc *sc = (struct fwohci_softc *)fc;
1323 OWRITE(sc, OHCI_ITCTLCLR(dmach),
1324 OHCI_CNTL_DMA_RUN | OHCI_CNTL_CYCMATCH_S);
1325 OWRITE(sc, OHCI_IT_MASKCLR, 1 << dmach);
1326 OWRITE(sc, OHCI_IT_STATCLR, 1 << dmach);
1327 /* XXX we cannot free buffers until the DMA really stops */
1328 pause("fwitxd", hz);
1329 fwohci_db_free(&sc->it[dmach]);
1330 sc->it[dmach].xferq.flag &= ~FWXFERQ_RUNNING;
1335 fwohci_irx_disable(struct firewire_comm *fc, int dmach)
1337 struct fwohci_softc *sc = (struct fwohci_softc *)fc;
1339 OWRITE(sc, OHCI_IRCTLCLR(dmach), OHCI_CNTL_DMA_RUN);
1340 OWRITE(sc, OHCI_IR_MASKCLR, 1 << dmach);
1341 OWRITE(sc, OHCI_IR_STATCLR, 1 << dmach);
1342 /* XXX we cannot free buffers until the DMA really stops */
1343 pause("fwirxd", hz);
1344 fwohci_db_free(&sc->ir[dmach]);
1345 sc->ir[dmach].xferq.flag &= ~FWXFERQ_RUNNING;
1349 #if BYTE_ORDER == BIG_ENDIAN
1351 fwohci_irx_post (struct firewire_comm *fc , uint32_t *qld)
1353 qld[0] = FWOHCI_DMA_READ(qld[0]);
1359 fwohci_tx_enable(struct fwohci_softc *sc, struct fwohci_dbch *dbch)
1362 int idb, z, i, dmach = 0, ldesc;
1364 struct fwohcidb_tr *db_tr;
1365 struct fwohcidb *db;
1367 if(!(dbch->xferq.flag & FWXFERQ_EXTBUF)){
1372 for(dmach = 0 ; dmach < sc->fc.nisodma ; dmach++){
1373 if( &sc->it[dmach] == dbch){
1374 off = OHCI_ITOFF(dmach);
1382 if(dbch->xferq.flag & FWXFERQ_RUNNING)
1384 dbch->xferq.flag |= FWXFERQ_RUNNING;
1385 for( i = 0, dbch->bottom = dbch->top; i < (dbch->ndb - 1); i++){
1386 dbch->bottom = STAILQ_NEXT(dbch->bottom, link);
1389 for (idb = 0; idb < dbch->ndb; idb ++) {
1390 fwohci_add_tx_buf(dbch, db_tr, idb);
1391 if(STAILQ_NEXT(db_tr, link) == NULL){
1395 ldesc = db_tr->dbcnt - 1;
1396 FWOHCI_DMA_WRITE(db[0].db.desc.depend,
1397 STAILQ_NEXT(db_tr, link)->bus_addr | z);
1398 db[ldesc].db.desc.depend = db[0].db.desc.depend;
1399 if(dbch->xferq.flag & FWXFERQ_EXTBUF){
1400 if(((idb + 1 ) % dbch->xferq.bnpacket) == 0){
1402 db[ldesc].db.desc.cmd,
1403 OHCI_INTERRUPT_ALWAYS);
1404 /* OHCI 1.1 and above */
1407 OHCI_INTERRUPT_ALWAYS);
1410 db_tr = STAILQ_NEXT(db_tr, link);
1413 dbch->bottom->db[dbch->bottom->dbcnt - 1].db.desc.depend, 0xf);
1418 fwohci_rx_enable(struct fwohci_softc *sc, struct fwohci_dbch *dbch)
1421 int idb, z, i, dmach = 0, ldesc;
1423 struct fwohcidb_tr *db_tr;
1424 struct fwohcidb *db;
1427 if(&sc->arrq == dbch){
1429 }else if(&sc->arrs == dbch){
1432 for(dmach = 0 ; dmach < sc->fc.nisodma ; dmach++){
1433 if( &sc->ir[dmach] == dbch){
1434 off = OHCI_IROFF(dmach);
1443 if(dbch->xferq.flag & FWXFERQ_STREAM){
1444 if(dbch->xferq.flag & FWXFERQ_RUNNING)
1447 if(dbch->xferq.flag & FWXFERQ_RUNNING){
1452 dbch->xferq.flag |= FWXFERQ_RUNNING;
1453 dbch->top = STAILQ_FIRST(&dbch->db_trq);
1454 for( i = 0, dbch->bottom = dbch->top; i < (dbch->ndb - 1); i++){
1455 dbch->bottom = STAILQ_NEXT(dbch->bottom, link);
1458 for (idb = 0; idb < dbch->ndb; idb ++) {
1459 fwohci_add_rx_buf(dbch, db_tr, idb, &sc->dummy_dma);
1460 if (STAILQ_NEXT(db_tr, link) == NULL)
1463 ldesc = db_tr->dbcnt - 1;
1464 FWOHCI_DMA_WRITE(db[ldesc].db.desc.depend,
1465 STAILQ_NEXT(db_tr, link)->bus_addr | z);
1466 if(dbch->xferq.flag & FWXFERQ_EXTBUF){
1467 if(((idb + 1 ) % dbch->xferq.bnpacket) == 0){
1469 db[ldesc].db.desc.cmd,
1470 OHCI_INTERRUPT_ALWAYS);
1472 db[ldesc].db.desc.depend,
1476 db_tr = STAILQ_NEXT(db_tr, link);
1479 dbch->bottom->db[db_tr->dbcnt - 1].db.desc.depend, 0xf);
1480 dbch->buf_offset = 0;
1481 fwdma_sync_multiseg_all(dbch->am, BUS_DMASYNC_PREREAD);
1482 fwdma_sync_multiseg_all(dbch->am, BUS_DMASYNC_PREWRITE);
1483 if(dbch->xferq.flag & FWXFERQ_STREAM){
1486 OWRITE(sc, OHCI_DMACMD(off), dbch->top->bus_addr | z);
1488 OWRITE(sc, OHCI_DMACTL(off), OHCI_CNTL_DMA_RUN);
1493 fwohci_next_cycle(struct firewire_comm *fc, int cycle_now)
1495 int sec, cycle, cycle_match;
1497 cycle = cycle_now & 0x1fff;
1498 sec = cycle_now >> 13;
1499 #define CYCLE_MOD 0x10
1501 #define CYCLE_DELAY 8 /* min delay to start DMA */
1503 #define CYCLE_DELAY 7000 /* min delay to start DMA */
1505 cycle = cycle + CYCLE_DELAY;
1506 if (cycle >= 8000) {
1510 cycle = roundup2(cycle, CYCLE_MOD);
1511 if (cycle >= 8000) {
1518 cycle_match = ((sec << 13) | cycle) & 0x7ffff;
1520 return(cycle_match);
1524 fwohci_itxbuf_enable(struct firewire_comm *fc, int dmach)
1526 struct fwohci_softc *sc = (struct fwohci_softc *)fc;
1528 unsigned short tag, ich;
1529 struct fwohci_dbch *dbch;
1530 int cycle_match, cycle_now, s, ldesc;
1532 struct fw_bulkxfer *first, *chunk, *prev;
1533 struct fw_xferq *it;
1535 dbch = &sc->it[dmach];
1538 tag = (it->flag >> 6) & 3;
1539 ich = it->flag & 0x3f;
1540 if ((dbch->flags & FWOHCI_DBCH_INIT) == 0) {
1541 dbch->ndb = it->bnpacket * it->bnchunk;
1543 fwohci_db_init(sc, dbch);
1544 if ((dbch->flags & FWOHCI_DBCH_INIT) == 0)
1547 err = fwohci_tx_enable(sc, dbch);
1552 ldesc = dbch->ndesc - 1;
1555 prev = STAILQ_LAST(&it->stdma, fw_bulkxfer, link);
1556 while ((chunk = STAILQ_FIRST(&it->stvalid)) != NULL) {
1557 struct fwohcidb *db;
1559 fwdma_sync_multiseg(it->buf, chunk->poffset, it->bnpacket,
1560 BUS_DMASYNC_PREWRITE);
1561 fwohci_txbufdb(sc, dmach, chunk);
1563 db = ((struct fwohcidb_tr *)(prev->end))->db;
1564 #if 0 /* XXX necessary? */
1565 FWOHCI_DMA_SET(db[ldesc].db.desc.cmd,
1566 OHCI_BRANCH_ALWAYS);
1568 #if 0 /* if bulkxfer->npacket changes */
1569 db[ldesc].db.desc.depend = db[0].db.desc.depend =
1570 ((struct fwohcidb_tr *)
1571 (chunk->start))->bus_addr | dbch->ndesc;
1573 FWOHCI_DMA_SET(db[0].db.desc.depend, dbch->ndesc);
1574 FWOHCI_DMA_SET(db[ldesc].db.desc.depend, dbch->ndesc);
1577 STAILQ_REMOVE_HEAD(&it->stvalid, link);
1578 STAILQ_INSERT_TAIL(&it->stdma, chunk, link);
1582 fwdma_sync_multiseg_all(dbch->am, BUS_DMASYNC_PREWRITE);
1583 fwdma_sync_multiseg_all(dbch->am, BUS_DMASYNC_PREREAD);
1585 stat = OREAD(sc, OHCI_ITCTL(dmach));
1586 if (firewire_debug && (stat & OHCI_CNTL_CYCMATCH_S))
1587 printf("stat 0x%x\n", stat);
1589 if (stat & (OHCI_CNTL_DMA_ACTIVE | OHCI_CNTL_CYCMATCH_S))
1593 OWRITE(sc, OHCI_ITCTLCLR(dmach), OHCI_CNTL_DMA_RUN);
1595 OWRITE(sc, OHCI_IT_MASKCLR, 1 << dmach);
1596 OWRITE(sc, OHCI_IT_STATCLR, 1 << dmach);
1597 OWRITE(sc, OHCI_IT_MASK, 1 << dmach);
1598 OWRITE(sc, FWOHCI_INTMASK, OHCI_INT_DMA_IT);
1600 first = STAILQ_FIRST(&it->stdma);
1601 OWRITE(sc, OHCI_ITCMD(dmach),
1602 ((struct fwohcidb_tr *)(first->start))->bus_addr | dbch->ndesc);
1603 if (firewire_debug > 1) {
1604 printf("fwohci_itxbuf_enable: kick 0x%08x\n", stat);
1606 dump_dma(sc, ITX_CH + dmach);
1609 if ((stat & OHCI_CNTL_DMA_RUN) == 0) {
1611 /* Don't start until all chunks are buffered */
1612 if (STAILQ_FIRST(&it->stfree) != NULL)
1616 /* Clear cycle match counter bits */
1617 OWRITE(sc, OHCI_ITCTLCLR(dmach), 0xffff0000);
1619 /* 2bit second + 13bit cycle */
1620 cycle_now = (fc->cyctimer(fc) >> 12) & 0x7fff;
1621 cycle_match = fwohci_next_cycle(fc, cycle_now);
1623 OWRITE(sc, OHCI_ITCTL(dmach),
1624 OHCI_CNTL_CYCMATCH_S | (cycle_match << 16)
1625 | OHCI_CNTL_DMA_RUN);
1627 OWRITE(sc, OHCI_ITCTL(dmach), OHCI_CNTL_DMA_RUN);
1629 if (firewire_debug > 1) {
1630 printf("cycle_match: 0x%04x->0x%04x\n",
1631 cycle_now, cycle_match);
1632 dump_dma(sc, ITX_CH + dmach);
1633 dump_db(sc, ITX_CH + dmach);
1635 } else if ((stat & OHCI_CNTL_CYCMATCH_S) == 0) {
1636 device_printf(sc->fc.dev,
1637 "IT DMA underrun (0x%08x)\n", stat);
1638 OWRITE(sc, OHCI_ITCTL(dmach), OHCI_CNTL_DMA_WAKE);
1645 fwohci_irx_enable(struct firewire_comm *fc, int dmach)
1647 struct fwohci_softc *sc = (struct fwohci_softc *)fc;
1648 int err = 0, s, ldesc;
1649 unsigned short tag, ich;
1651 struct fwohci_dbch *dbch;
1652 struct fwohcidb_tr *db_tr;
1653 struct fw_bulkxfer *first, *prev, *chunk;
1654 struct fw_xferq *ir;
1656 dbch = &sc->ir[dmach];
1659 if ((ir->flag & FWXFERQ_RUNNING) == 0) {
1660 tag = (ir->flag >> 6) & 3;
1661 ich = ir->flag & 0x3f;
1662 OWRITE(sc, OHCI_IRMATCH(dmach), tagbit[tag] | ich);
1665 dbch->ndb = ir->bnpacket * ir->bnchunk;
1667 fwohci_db_init(sc, dbch);
1668 if ((dbch->flags & FWOHCI_DBCH_INIT) == 0)
1670 err = fwohci_rx_enable(sc, dbch);
1675 first = STAILQ_FIRST(&ir->stfree);
1676 if (first == NULL) {
1677 device_printf(fc->dev, "IR DMA no free chunk\n");
1681 ldesc = dbch->ndesc - 1;
1683 if ((ir->flag & FWXFERQ_HANDLER) == 0)
1685 prev = STAILQ_LAST(&ir->stdma, fw_bulkxfer, link);
1686 while ((chunk = STAILQ_FIRST(&ir->stfree)) != NULL) {
1687 struct fwohcidb *db;
1689 #if 1 /* XXX for if_fwe */
1690 if (chunk->mbuf != NULL) {
1691 db_tr = (struct fwohcidb_tr *)(chunk->start);
1693 err = bus_dmamap_load_mbuf(dbch->dmat, db_tr->dma_map,
1694 chunk->mbuf, fwohci_execute_db2, db_tr,
1696 FWOHCI_DMA_SET(db_tr->db[1].db.desc.cmd,
1697 OHCI_UPDATE | OHCI_INPUT_LAST |
1698 OHCI_INTERRUPT_ALWAYS | OHCI_BRANCH_ALWAYS);
1701 db = ((struct fwohcidb_tr *)(chunk->end))->db;
1702 FWOHCI_DMA_WRITE(db[ldesc].db.desc.res, 0);
1703 FWOHCI_DMA_CLEAR(db[ldesc].db.desc.depend, 0xf);
1705 db = ((struct fwohcidb_tr *)(prev->end))->db;
1706 FWOHCI_DMA_SET(db[ldesc].db.desc.depend, dbch->ndesc);
1708 STAILQ_REMOVE_HEAD(&ir->stfree, link);
1709 STAILQ_INSERT_TAIL(&ir->stdma, chunk, link);
1712 if ((ir->flag & FWXFERQ_HANDLER) == 0)
1714 fwdma_sync_multiseg_all(dbch->am, BUS_DMASYNC_PREWRITE);
1715 fwdma_sync_multiseg_all(dbch->am, BUS_DMASYNC_PREREAD);
1717 stat = OREAD(sc, OHCI_IRCTL(dmach));
1718 if (stat & OHCI_CNTL_DMA_ACTIVE)
1720 if (stat & OHCI_CNTL_DMA_RUN) {
1721 OWRITE(sc, OHCI_IRCTLCLR(dmach), OHCI_CNTL_DMA_RUN);
1722 device_printf(sc->fc.dev, "IR DMA overrun (0x%08x)\n", stat);
1726 printf("start IR DMA 0x%x\n", stat);
1727 OWRITE(sc, OHCI_IR_MASKCLR, 1 << dmach);
1728 OWRITE(sc, OHCI_IR_STATCLR, 1 << dmach);
1729 OWRITE(sc, OHCI_IR_MASK, 1 << dmach);
1730 OWRITE(sc, OHCI_IRCTLCLR(dmach), 0xf0000000);
1731 OWRITE(sc, OHCI_IRCTL(dmach), OHCI_CNTL_ISOHDR);
1732 OWRITE(sc, OHCI_IRCMD(dmach),
1733 ((struct fwohcidb_tr *)(first->start))->bus_addr
1735 OWRITE(sc, OHCI_IRCTL(dmach), OHCI_CNTL_DMA_RUN);
1736 OWRITE(sc, FWOHCI_INTMASK, OHCI_INT_DMA_IR);
1738 dump_db(sc, IRX_CH + dmach);
1744 fwohci_stop(struct fwohci_softc *sc, device_t dev)
1748 fwohci_set_intr(&sc->fc, 0);
1750 /* Now stopping all DMA channel */
1751 OWRITE(sc, OHCI_ARQCTLCLR, OHCI_CNTL_DMA_RUN);
1752 OWRITE(sc, OHCI_ARSCTLCLR, OHCI_CNTL_DMA_RUN);
1753 OWRITE(sc, OHCI_ATQCTLCLR, OHCI_CNTL_DMA_RUN);
1754 OWRITE(sc, OHCI_ATSCTLCLR, OHCI_CNTL_DMA_RUN);
1756 for( i = 0 ; i < sc->fc.nisodma ; i ++ ){
1757 OWRITE(sc, OHCI_IRCTLCLR(i), OHCI_CNTL_DMA_RUN);
1758 OWRITE(sc, OHCI_ITCTLCLR(i), OHCI_CNTL_DMA_RUN);
1761 #if 0 /* Let dcons(4) be accessed */
1762 /* Stop interrupt */
1763 OWRITE(sc, FWOHCI_INTMASKCLR,
1764 OHCI_INT_EN | OHCI_INT_ERR | OHCI_INT_PHY_SID
1766 | OHCI_INT_DMA_ATRQ | OHCI_INT_DMA_ATRS
1767 | OHCI_INT_DMA_PRRQ | OHCI_INT_DMA_PRRS
1768 | OHCI_INT_DMA_ARRQ | OHCI_INT_DMA_ARRS
1769 | OHCI_INT_PHY_BUS_R);
1771 /* FLUSH FIFO and reset Transmitter/Reciever */
1772 OWRITE(sc, OHCI_HCCCTL, OHCI_HCC_RESET);
1775 /* XXX Link down? Bus reset? */
1780 fwohci_resume(struct fwohci_softc *sc, device_t dev)
1783 struct fw_xferq *ir;
1784 struct fw_bulkxfer *chunk;
1786 fwohci_reset(sc, dev);
1787 /* XXX resume isochronous receive automatically. (how about TX?) */
1788 for(i = 0; i < sc->fc.nisodma; i ++) {
1789 ir = &sc->ir[i].xferq;
1790 if((ir->flag & FWXFERQ_RUNNING) != 0) {
1791 device_printf(sc->fc.dev,
1792 "resume iso receive ch: %d\n", i);
1793 ir->flag &= ~FWXFERQ_RUNNING;
1794 /* requeue stdma to stfree */
1795 while((chunk = STAILQ_FIRST(&ir->stdma)) != NULL) {
1796 STAILQ_REMOVE_HEAD(&ir->stdma, link);
1797 STAILQ_INSERT_TAIL(&ir->stfree, chunk, link);
1799 sc->fc.irx_enable(&sc->fc, i);
1803 bus_generic_resume(dev);
1804 sc->fc.ibr(&sc->fc);
1810 fwohci_dump_intr(struct fwohci_softc *sc, uint32_t stat)
1812 if(stat & OREAD(sc, FWOHCI_INTMASK))
1813 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",
1814 stat & OHCI_INT_EN ? "DMA_EN ":"",
1815 stat & OHCI_INT_PHY_REG ? "PHY_REG ":"",
1816 stat & OHCI_INT_CYC_LONG ? "CYC_LONG ":"",
1817 stat & OHCI_INT_ERR ? "INT_ERR ":"",
1818 stat & OHCI_INT_CYC_ERR ? "CYC_ERR ":"",
1819 stat & OHCI_INT_CYC_LOST ? "CYC_LOST ":"",
1820 stat & OHCI_INT_CYC_64SECOND ? "CYC_64SECOND ":"",
1821 stat & OHCI_INT_CYC_START ? "CYC_START ":"",
1822 stat & OHCI_INT_PHY_INT ? "PHY_INT ":"",
1823 stat & OHCI_INT_PHY_BUS_R ? "BUS_RESET ":"",
1824 stat & OHCI_INT_PHY_SID ? "SID ":"",
1825 stat & OHCI_INT_LR_ERR ? "DMA_LR_ERR ":"",
1826 stat & OHCI_INT_PW_ERR ? "DMA_PW_ERR ":"",
1827 stat & OHCI_INT_DMA_IR ? "DMA_IR ":"",
1828 stat & OHCI_INT_DMA_IT ? "DMA_IT " :"",
1829 stat & OHCI_INT_DMA_PRRS ? "DMA_PRRS " :"",
1830 stat & OHCI_INT_DMA_PRRQ ? "DMA_PRRQ " :"",
1831 stat & OHCI_INT_DMA_ARRS ? "DMA_ARRS " :"",
1832 stat & OHCI_INT_DMA_ARRQ ? "DMA_ARRQ " :"",
1833 stat & OHCI_INT_DMA_ATRS ? "DMA_ATRS " :"",
1834 stat & OHCI_INT_DMA_ATRQ ? "DMA_ATRQ " :"",
1835 stat, OREAD(sc, FWOHCI_INTMASK)
1840 fwohci_intr_core(struct fwohci_softc *sc, uint32_t stat, int count)
1842 struct firewire_comm *fc = (struct firewire_comm *)sc;
1843 uint32_t node_id, plen;
1845 FW_GLOCK_ASSERT(fc);
1846 if ((stat & OHCI_INT_PHY_BUS_R) && (fc->status != FWBUSRESET)) {
1847 fc->status = FWBUSRESET;
1848 /* Disable bus reset interrupt until sid recv. */
1849 OWRITE(sc, FWOHCI_INTMASKCLR, OHCI_INT_PHY_BUS_R);
1851 device_printf(fc->dev, "%s: BUS reset\n", __func__);
1852 OWRITE(sc, FWOHCI_INTMASKCLR, OHCI_INT_CYC_LOST);
1853 OWRITE(sc, OHCI_LNKCTLCLR, OHCI_CNTL_CYCSRC);
1855 OWRITE(sc, OHCI_ATQCTLCLR, OHCI_CNTL_DMA_RUN);
1856 sc->atrq.xferq.flag &= ~FWXFERQ_RUNNING;
1857 OWRITE(sc, OHCI_ATSCTLCLR, OHCI_CNTL_DMA_RUN);
1858 sc->atrs.xferq.flag &= ~FWXFERQ_RUNNING;
1861 taskqueue_enqueue(sc->fc.taskqueue, &sc->fwohci_task_busreset);
1863 if (stat & OHCI_INT_PHY_SID) {
1864 /* Enable bus reset interrupt */
1865 OWRITE(sc, FWOHCI_INTSTATCLR, OHCI_INT_PHY_BUS_R);
1866 OWRITE(sc, FWOHCI_INTMASK, OHCI_INT_PHY_BUS_R);
1868 /* Allow async. request to us */
1869 OWRITE(sc, OHCI_AREQHI, 1 << 31);
1870 if (firewire_phydma_enable) {
1871 /* allow from all nodes */
1872 OWRITE(sc, OHCI_PREQHI, 0x7fffffff);
1873 OWRITE(sc, OHCI_PREQLO, 0xffffffff);
1874 /* 0 to 4GB region */
1875 OWRITE(sc, OHCI_PREQUPPER, 0x10000);
1877 /* Set ATRetries register */
1878 OWRITE(sc, OHCI_ATRETRY, 1<<(13+16) | 0xfff);
1881 * Checking whether the node is root or not. If root, turn on
1884 node_id = OREAD(sc, FWOHCI_NODEID);
1885 plen = OREAD(sc, OHCI_SID_CNT);
1887 fc->nodeid = node_id & 0x3f;
1888 device_printf(fc->dev, "%s: node_id=0x%08x, SelfID Count=%d, ",
1889 __func__, fc->nodeid, (plen >> 16) & 0xff);
1890 if (!(node_id & OHCI_NODE_VALID)) {
1891 device_printf(fc->dev, "%s: Bus reset failure\n",
1898 OWRITE(sc, FWOHCI_INTMASK, OHCI_INT_CYC_LOST);
1899 if ((node_id & OHCI_NODE_ROOT) && !nocyclemaster) {
1900 printf("CYCLEMASTER mode\n");
1901 OWRITE(sc, OHCI_LNKCTL,
1902 OHCI_CNTL_CYCMTR | OHCI_CNTL_CYCTIMER);
1904 printf("non CYCLEMASTER mode\n");
1905 OWRITE(sc, OHCI_LNKCTLCLR, OHCI_CNTL_CYCMTR);
1906 OWRITE(sc, OHCI_LNKCTL, OHCI_CNTL_CYCTIMER);
1909 fc->status = FWBUSINIT;
1912 taskqueue_enqueue(sc->fc.taskqueue, &sc->fwohci_task_sid);
1915 if ((stat & ~(OHCI_INT_PHY_BUS_R | OHCI_INT_PHY_SID)) && (!kdb_active))
1916 taskqueue_enqueue(sc->fc.taskqueue, &sc->fwohci_task_dma);
1920 fwohci_intr_dma(struct fwohci_softc *sc, uint32_t stat, int count)
1922 uint32_t irstat, itstat;
1924 struct firewire_comm *fc = (struct firewire_comm *)sc;
1926 if (stat & OHCI_INT_DMA_IR) {
1927 irstat = atomic_readandclear_int(&sc->irstat);
1928 for(i = 0; i < fc->nisodma ; i++){
1929 struct fwohci_dbch *dbch;
1931 if((irstat & (1 << i)) != 0){
1933 if ((dbch->xferq.flag & FWXFERQ_OPEN) == 0) {
1934 device_printf(sc->fc.dev,
1935 "dma(%d) not active\n", i);
1938 fwohci_rbuf_update(sc, i);
1942 if (stat & OHCI_INT_DMA_IT) {
1943 itstat = atomic_readandclear_int(&sc->itstat);
1944 for(i = 0; i < fc->nisodma ; i++){
1945 if((itstat & (1 << i)) != 0){
1946 fwohci_tbuf_update(sc, i);
1950 if (stat & OHCI_INT_DMA_PRRS) {
1952 dump_dma(sc, ARRS_CH);
1953 dump_db(sc, ARRS_CH);
1955 fwohci_arcv(sc, &sc->arrs, count);
1957 if (stat & OHCI_INT_DMA_PRRQ) {
1959 dump_dma(sc, ARRQ_CH);
1960 dump_db(sc, ARRQ_CH);
1962 fwohci_arcv(sc, &sc->arrq, count);
1964 if (stat & OHCI_INT_CYC_LOST) {
1965 if (sc->cycle_lost >= 0)
1967 if (sc->cycle_lost > 10) {
1968 sc->cycle_lost = -1;
1970 OWRITE(sc, OHCI_LNKCTLCLR, OHCI_CNTL_CYCTIMER);
1972 OWRITE(sc, FWOHCI_INTMASKCLR, OHCI_INT_CYC_LOST);
1973 device_printf(fc->dev, "too many cycles lost, "
1974 "no cycle master present?\n");
1977 if (stat & OHCI_INT_DMA_ATRQ) {
1978 fwohci_txd(sc, &(sc->atrq));
1980 if (stat & OHCI_INT_DMA_ATRS) {
1981 fwohci_txd(sc, &(sc->atrs));
1983 if (stat & OHCI_INT_PW_ERR) {
1984 device_printf(fc->dev, "posted write error\n");
1986 if (stat & OHCI_INT_ERR) {
1987 device_printf(fc->dev, "unrecoverable error\n");
1989 if (stat & OHCI_INT_PHY_INT) {
1990 device_printf(fc->dev, "phy int\n");
1997 fwohci_task_busreset(void *arg, int pending)
1999 struct fwohci_softc *sc = (struct fwohci_softc *)arg;
2002 fw_busreset(&sc->fc, FWBUSRESET);
2003 OWRITE(sc, OHCI_CROMHDR, ntohl(sc->fc.config_rom[0]));
2004 OWRITE(sc, OHCI_BUS_OPT, ntohl(sc->fc.config_rom[2]));
2005 FW_GUNLOCK(&sc->fc);
2009 fwohci_task_sid(void *arg, int pending)
2011 struct fwohci_softc *sc = (struct fwohci_softc *)arg;
2012 struct firewire_comm *fc = &sc->fc;
2018 * We really should have locking
2019 * here. Not sure why it's not
2021 plen = OREAD(sc, OHCI_SID_CNT);
2023 if (plen & OHCI_SID_ERR) {
2024 device_printf(fc->dev, "SID Error\n");
2027 plen &= OHCI_SID_CNT_MASK;
2028 if (plen < 4 || plen > OHCI_SIDSIZE) {
2029 device_printf(fc->dev, "invalid SID len = %d\n", plen);
2032 plen -= 4; /* chop control info */
2033 buf = (uint32_t *)malloc(OHCI_SIDSIZE, M_FW, M_NOWAIT);
2035 device_printf(fc->dev, "malloc failed\n");
2038 for (i = 0; i < plen / 4; i ++)
2039 buf[i] = FWOHCI_DMA_READ(sc->sid_buf[i+1]);
2041 /* pending all pre-bus_reset packets */
2042 fwohci_txd(sc, &sc->atrq);
2043 fwohci_txd(sc, &sc->atrs);
2044 fwohci_arcv(sc, &sc->arrs, -1);
2045 fwohci_arcv(sc, &sc->arrq, -1);
2047 fw_sidrcv(fc, buf, plen);
2052 fwohci_task_dma(void *arg, int pending)
2054 struct fwohci_softc *sc = (struct fwohci_softc *)arg;
2058 stat = atomic_readandclear_int(&sc->intstat);
2060 fwohci_intr_dma(sc, stat, -1);
2067 fwohci_check_stat(struct fwohci_softc *sc)
2069 uint32_t stat, irstat, itstat;
2071 FW_GLOCK_ASSERT(&sc->fc);
2072 stat = OREAD(sc, FWOHCI_INTSTAT);
2073 if (stat == 0xffffffff) {
2074 if (!bus_child_present(sc->fc.dev))
2075 return (FILTER_HANDLED);
2076 device_printf(sc->fc.dev, "device physically ejected?\n");
2077 return (FILTER_STRAY);
2080 OWRITE(sc, FWOHCI_INTSTATCLR, stat & ~OHCI_INT_PHY_BUS_R);
2082 stat &= sc->intmask;
2084 return (FILTER_STRAY);
2086 atomic_set_int(&sc->intstat, stat);
2087 if (stat & OHCI_INT_DMA_IR) {
2088 irstat = OREAD(sc, OHCI_IR_STAT);
2089 OWRITE(sc, OHCI_IR_STATCLR, irstat);
2090 atomic_set_int(&sc->irstat, irstat);
2092 if (stat & OHCI_INT_DMA_IT) {
2093 itstat = OREAD(sc, OHCI_IT_STAT);
2094 OWRITE(sc, OHCI_IT_STATCLR, itstat);
2095 atomic_set_int(&sc->itstat, itstat);
2098 fwohci_intr_core(sc, stat, -1);
2099 return (FILTER_HANDLED);
2103 fwohci_intr(void *arg)
2105 struct fwohci_softc *sc = (struct fwohci_softc *)arg;
2108 fwohci_check_stat(sc);
2109 FW_GUNLOCK(&sc->fc);
2113 fwohci_poll(struct firewire_comm *fc, int quick, int count)
2115 struct fwohci_softc *sc = (struct fwohci_softc *)fc;
2118 fwohci_check_stat(sc);
2123 fwohci_set_intr(struct firewire_comm *fc, int enable)
2125 struct fwohci_softc *sc;
2127 sc = (struct fwohci_softc *)fc;
2129 device_printf(sc->fc.dev, "fwohci_set_intr: %d\n", enable);
2131 sc->intmask |= OHCI_INT_EN;
2132 OWRITE(sc, FWOHCI_INTMASK, OHCI_INT_EN);
2134 sc->intmask &= ~OHCI_INT_EN;
2135 OWRITE(sc, FWOHCI_INTMASKCLR, OHCI_INT_EN);
2140 fwohci_tbuf_update(struct fwohci_softc *sc, int dmach)
2142 struct firewire_comm *fc = &sc->fc;
2143 struct fwohcidb *db;
2144 struct fw_bulkxfer *chunk;
2145 struct fw_xferq *it;
2146 uint32_t stat, count;
2150 ldesc = sc->it[dmach].ndesc - 1;
2151 s = splfw(); /* unnecessary ? */
2153 fwdma_sync_multiseg_all(sc->it[dmach].am, BUS_DMASYNC_POSTREAD);
2155 dump_db(sc, ITX_CH + dmach);
2156 while ((chunk = STAILQ_FIRST(&it->stdma)) != NULL) {
2157 db = ((struct fwohcidb_tr *)(chunk->end))->db;
2158 stat = FWOHCI_DMA_READ(db[ldesc].db.desc.res)
2159 >> OHCI_STATUS_SHIFT;
2160 db = ((struct fwohcidb_tr *)(chunk->start))->db;
2162 count = FWOHCI_DMA_READ(db[ldesc].db.desc.res)
2166 STAILQ_REMOVE_HEAD(&it->stdma, link);
2167 switch (stat & FWOHCIEV_MASK){
2168 case FWOHCIEV_ACKCOMPL:
2170 device_printf(fc->dev, "0x%08x\n", count);
2174 device_printf(fc->dev,
2175 "Isochronous transmit err %02x(%s)\n",
2176 stat, fwohcicode[stat & 0x1f]);
2178 STAILQ_INSERT_TAIL(&it->stfree, chunk, link);
2188 fwohci_rbuf_update(struct fwohci_softc *sc, int dmach)
2190 struct firewire_comm *fc = &sc->fc;
2191 struct fwohcidb_tr *db_tr;
2192 struct fw_bulkxfer *chunk;
2193 struct fw_xferq *ir;
2195 int s, w = 0, ldesc;
2198 ldesc = sc->ir[dmach].ndesc - 1;
2204 if ((ir->flag & FWXFERQ_HANDLER) == 0)
2206 fwdma_sync_multiseg_all(sc->ir[dmach].am, BUS_DMASYNC_POSTREAD);
2207 while ((chunk = STAILQ_FIRST(&ir->stdma)) != NULL) {
2208 db_tr = (struct fwohcidb_tr *)chunk->end;
2209 stat = FWOHCI_DMA_READ(db_tr->db[ldesc].db.desc.res)
2210 >> OHCI_STATUS_SHIFT;
2214 if (chunk->mbuf != NULL) {
2215 bus_dmamap_sync(sc->ir[dmach].dmat, db_tr->dma_map,
2216 BUS_DMASYNC_POSTREAD);
2217 bus_dmamap_unload(sc->ir[dmach].dmat, db_tr->dma_map);
2218 } else if (ir->buf != NULL) {
2219 fwdma_sync_multiseg(ir->buf, chunk->poffset,
2220 ir->bnpacket, BUS_DMASYNC_POSTREAD);
2223 printf("fwohci_rbuf_update: this shouldn't happend\n");
2226 STAILQ_REMOVE_HEAD(&ir->stdma, link);
2227 STAILQ_INSERT_TAIL(&ir->stvalid, chunk, link);
2228 switch (stat & FWOHCIEV_MASK) {
2229 case FWOHCIEV_ACKCOMPL:
2233 chunk->resp = EINVAL;
2234 device_printf(fc->dev,
2235 "Isochronous receive err %02x(%s)\n",
2236 stat, fwohcicode[stat & 0x1f]);
2240 if ((ir->flag & FWXFERQ_HANDLER) == 0)
2246 if (ir->flag & FWXFERQ_HANDLER)
2253 dump_dma(struct fwohci_softc *sc, uint32_t ch)
2255 uint32_t off, cntl, stat, cmd, match;
2265 }else if(ch < IRX_CH){
2266 off = OHCI_ITCTL(ch - ITX_CH);
2268 off = OHCI_IRCTL(ch - IRX_CH);
2270 cntl = stat = OREAD(sc, off);
2271 cmd = OREAD(sc, off + 0xc);
2272 match = OREAD(sc, off + 0x10);
2274 device_printf(sc->fc.dev, "ch %1x cntl:0x%08x cmd:0x%08x match:0x%08x\n",
2281 device_printf(sc->fc.dev, "dma %d ch:%s%s%s%s%s%s %s(%x)\n",
2283 stat & OHCI_CNTL_DMA_RUN ? "RUN," : "",
2284 stat & OHCI_CNTL_DMA_WAKE ? "WAKE," : "",
2285 stat & OHCI_CNTL_DMA_DEAD ? "DEAD," : "",
2286 stat & OHCI_CNTL_DMA_ACTIVE ? "ACTIVE," : "",
2287 stat & OHCI_CNTL_DMA_BT ? "BRANCH," : "",
2288 stat & OHCI_CNTL_DMA_BAD ? "BADDMA," : "",
2289 fwohcicode[stat & 0x1f],
2293 device_printf(sc->fc.dev, "dma %d ch: Nostat\n", ch);
2298 dump_db(struct fwohci_softc *sc, uint32_t ch)
2300 struct fwohci_dbch *dbch;
2301 struct fwohcidb_tr *cp = NULL, *pp, *np = NULL;
2302 struct fwohcidb *curr = NULL, *prev, *next = NULL;
2317 }else if(ch < IRX_CH){
2318 off = OHCI_ITCTL(ch - ITX_CH);
2319 dbch = &sc->it[ch - ITX_CH];
2321 off = OHCI_IRCTL(ch - IRX_CH);
2322 dbch = &sc->ir[ch - IRX_CH];
2324 cmd = OREAD(sc, off + 0xc);
2326 if( dbch->ndb == 0 ){
2327 device_printf(sc->fc.dev, "No DB is attached ch=%d\n", ch);
2332 for(idb = 0 ; idb < dbch->ndb ; idb ++ ){
2333 cp = STAILQ_NEXT(pp, link);
2338 np = STAILQ_NEXT(cp, link);
2339 for(jdb = 0 ; jdb < dbch->ndesc ; jdb ++ ){
2340 if ((cmd & 0xfffffff0) == cp->bus_addr) {
2350 pp = STAILQ_NEXT(pp, link);
2360 printf("Prev DB %d\n", ch);
2361 print_db(pp, prev, ch, dbch->ndesc);
2363 printf("Current DB %d\n", ch);
2364 print_db(cp, curr, ch, dbch->ndesc);
2366 printf("Next DB %d\n", ch);
2367 print_db(np, next, ch, dbch->ndesc);
2370 printf("dbdump err ch = %d cmd = 0x%08x\n", ch, cmd);
2376 print_db(struct fwohcidb_tr *db_tr, struct fwohcidb *db,
2377 uint32_t ch, uint32_t max)
2384 printf("No Descriptor is found\n");
2388 printf("ch = %d\n%8s %s %s %s %s %4s %8s %8s %4s:%4s\n",
2400 for( i = 0 ; i <= max ; i ++){
2401 cmd = FWOHCI_DMA_READ(db[i].db.desc.cmd);
2402 res = FWOHCI_DMA_READ(db[i].db.desc.res);
2403 key = cmd & OHCI_KEY_MASK;
2404 stat = res >> OHCI_STATUS_SHIFT;
2405 #if defined(__DragonFly__) || __FreeBSD_version < 500000
2406 printf("%08x %s %s %s %s %5d %08x %08x %04x:%04x",
2409 printf("%08jx %s %s %s %s %5d %08x %08x %04x:%04x",
2410 (uintmax_t)db_tr->bus_addr,
2412 dbcode[(cmd >> 28) & 0xf],
2413 dbkey[(cmd >> 24) & 0x7],
2414 dbcond[(cmd >> 20) & 0x3],
2415 dbcond[(cmd >> 18) & 0x3],
2416 cmd & OHCI_COUNT_MASK,
2417 FWOHCI_DMA_READ(db[i].db.desc.addr),
2418 FWOHCI_DMA_READ(db[i].db.desc.depend),
2420 res & OHCI_COUNT_MASK);
2422 printf(" %s%s%s%s%s%s %s(%x)\n",
2423 stat & OHCI_CNTL_DMA_RUN ? "RUN," : "",
2424 stat & OHCI_CNTL_DMA_WAKE ? "WAKE," : "",
2425 stat & OHCI_CNTL_DMA_DEAD ? "DEAD," : "",
2426 stat & OHCI_CNTL_DMA_ACTIVE ? "ACTIVE," : "",
2427 stat & OHCI_CNTL_DMA_BT ? "BRANCH," : "",
2428 stat & OHCI_CNTL_DMA_BAD ? "BADDMA," : "",
2429 fwohcicode[stat & 0x1f],
2433 printf(" Nostat\n");
2435 if(key == OHCI_KEY_ST2 ){
2436 printf("0x%08x 0x%08x 0x%08x 0x%08x\n",
2437 FWOHCI_DMA_READ(db[i+1].db.immed[0]),
2438 FWOHCI_DMA_READ(db[i+1].db.immed[1]),
2439 FWOHCI_DMA_READ(db[i+1].db.immed[2]),
2440 FWOHCI_DMA_READ(db[i+1].db.immed[3]));
2442 if(key == OHCI_KEY_DEVICE){
2445 if((cmd & OHCI_BRANCH_MASK)
2446 == OHCI_BRANCH_ALWAYS){
2449 if((cmd & OHCI_CMD_MASK)
2450 == OHCI_OUTPUT_LAST){
2453 if((cmd & OHCI_CMD_MASK)
2454 == OHCI_INPUT_LAST){
2457 if(key == OHCI_KEY_ST2 ){
2465 fwohci_ibr(struct firewire_comm *fc)
2467 struct fwohci_softc *sc;
2470 device_printf(fc->dev, "Initiate bus reset\n");
2471 sc = (struct fwohci_softc *)fc;
2475 * Make sure our cached values from the config rom are
2478 OWRITE(sc, OHCI_CROMHDR, ntohl(sc->fc.config_rom[0]));
2479 OWRITE(sc, OHCI_BUS_OPT, ntohl(sc->fc.config_rom[2]));
2482 * Set root hold-off bit so that non cyclemaster capable node
2483 * shouldn't became the root node.
2486 fun = fwphy_rddata(sc, FW_PHY_IBR_REG);
2487 fun |= FW_PHY_IBR | FW_PHY_RHB;
2488 fun = fwphy_wrdata(sc, FW_PHY_IBR_REG, fun);
2489 #else /* Short bus reset */
2490 fun = fwphy_rddata(sc, FW_PHY_ISBR_REG);
2491 fun |= FW_PHY_ISBR | FW_PHY_RHB;
2492 fun = fwphy_wrdata(sc, FW_PHY_ISBR_REG, fun);
2498 fwohci_txbufdb(struct fwohci_softc *sc, int dmach, struct fw_bulkxfer *bulkxfer)
2500 struct fwohcidb_tr *db_tr, *fdb_tr;
2501 struct fwohci_dbch *dbch;
2502 struct fwohcidb *db;
2504 struct fwohci_txpkthdr *ohcifp;
2505 unsigned short chtag;
2508 FW_GLOCK_ASSERT(&sc->fc);
2510 dbch = &sc->it[dmach];
2511 chtag = sc->it[dmach].xferq.flag & 0xff;
2513 db_tr = (struct fwohcidb_tr *)(bulkxfer->start);
2514 fdb_tr = (struct fwohcidb_tr *)(bulkxfer->end);
2516 device_printf(sc->fc.dev, "DB %08x %08x %08x\n", bulkxfer, db_tr->bus_addr, fdb_tr->bus_addr);
2518 for (idb = 0; idb < dbch->xferq.bnpacket; idb ++) {
2520 fp = (struct fw_pkt *)db_tr->buf;
2521 ohcifp = (struct fwohci_txpkthdr *) db[1].db.immed;
2522 ohcifp->mode.ld[0] = fp->mode.ld[0];
2523 ohcifp->mode.common.spd = 0 & 0x7;
2524 ohcifp->mode.stream.len = fp->mode.stream.len;
2525 ohcifp->mode.stream.chtag = chtag;
2526 ohcifp->mode.stream.tcode = 0xa;
2527 #if BYTE_ORDER == BIG_ENDIAN
2528 FWOHCI_DMA_WRITE(db[1].db.immed[0], db[1].db.immed[0]);
2529 FWOHCI_DMA_WRITE(db[1].db.immed[1], db[1].db.immed[1]);
2532 FWOHCI_DMA_CLEAR(db[2].db.desc.cmd, OHCI_COUNT_MASK);
2533 FWOHCI_DMA_SET(db[2].db.desc.cmd, fp->mode.stream.len);
2534 FWOHCI_DMA_WRITE(db[2].db.desc.res, 0);
2535 #if 0 /* if bulkxfer->npackets changes */
2536 db[2].db.desc.cmd = OHCI_OUTPUT_LAST
2538 | OHCI_BRANCH_ALWAYS;
2539 db[0].db.desc.depend =
2540 = db[dbch->ndesc - 1].db.desc.depend
2541 = STAILQ_NEXT(db_tr, link)->bus_addr | dbch->ndesc;
2543 FWOHCI_DMA_SET(db[0].db.desc.depend, dbch->ndesc);
2544 FWOHCI_DMA_SET(db[dbch->ndesc - 1].db.desc.depend, dbch->ndesc);
2546 bulkxfer->end = (caddr_t)db_tr;
2547 db_tr = STAILQ_NEXT(db_tr, link);
2549 db = ((struct fwohcidb_tr *)bulkxfer->end)->db;
2550 FWOHCI_DMA_CLEAR(db[0].db.desc.depend, 0xf);
2551 FWOHCI_DMA_CLEAR(db[dbch->ndesc - 1].db.desc.depend, 0xf);
2552 #if 0 /* if bulkxfer->npackets changes */
2553 db[dbch->ndesc - 1].db.desc.control |= OHCI_INTERRUPT_ALWAYS;
2554 /* OHCI 1.1 and above */
2555 db[0].db.desc.control |= OHCI_INTERRUPT_ALWAYS;
2558 db_tr = (struct fwohcidb_tr *)bulkxfer->start;
2559 fdb_tr = (struct fwohcidb_tr *)bulkxfer->end;
2560 device_printf(sc->fc.dev, "DB %08x %3d %08x %08x\n", bulkxfer, bulkxfer->npacket, db_tr->bus_addr, fdb_tr->bus_addr);
2566 fwohci_add_tx_buf(struct fwohci_dbch *dbch, struct fwohcidb_tr *db_tr,
2569 struct fwohcidb *db = db_tr->db;
2570 struct fw_xferq *it;
2578 db_tr->buf = fwdma_v_addr(it->buf, poffset);
2581 FWOHCI_DMA_WRITE(db[0].db.desc.cmd,
2582 OHCI_OUTPUT_MORE | OHCI_KEY_ST2 | 8);
2583 FWOHCI_DMA_WRITE(db[0].db.desc.addr, 0);
2584 bzero((void *)&db[1].db.immed[0], sizeof(db[1].db.immed));
2585 FWOHCI_DMA_WRITE(db[2].db.desc.addr,
2586 fwdma_bus_addr(it->buf, poffset) + sizeof(uint32_t));
2588 FWOHCI_DMA_WRITE(db[2].db.desc.cmd,
2589 OHCI_OUTPUT_LAST | OHCI_UPDATE | OHCI_BRANCH_ALWAYS);
2591 FWOHCI_DMA_WRITE(db[0].db.desc.res, 0);
2592 FWOHCI_DMA_WRITE(db[2].db.desc.res, 0);
2598 fwohci_add_rx_buf(struct fwohci_dbch *dbch, struct fwohcidb_tr *db_tr,
2599 int poffset, struct fwdma_alloc *dummy_dma)
2601 struct fwohcidb *db = db_tr->db;
2602 struct fw_xferq *ir;
2608 if (ir->buf == NULL && (dbch->xferq.flag & FWXFERQ_EXTBUF) == 0) {
2609 if (db_tr->buf == NULL) {
2610 db_tr->buf = fwdma_malloc_size(dbch->dmat,
2611 &db_tr->dma_map, ir->psize, &dbuf[0],
2613 if (db_tr->buf == NULL)
2617 dsiz[0] = ir->psize;
2618 bus_dmamap_sync(dbch->dmat, db_tr->dma_map,
2619 BUS_DMASYNC_PREREAD);
2622 if (dummy_dma != NULL) {
2623 dsiz[db_tr->dbcnt] = sizeof(uint32_t);
2624 dbuf[db_tr->dbcnt++] = dummy_dma->bus_addr;
2626 dsiz[db_tr->dbcnt] = ir->psize;
2627 if (ir->buf != NULL) {
2628 db_tr->buf = fwdma_v_addr(ir->buf, poffset);
2629 dbuf[db_tr->dbcnt] = fwdma_bus_addr( ir->buf, poffset);
2633 for(i = 0 ; i < db_tr->dbcnt ; i++){
2634 FWOHCI_DMA_WRITE(db[i].db.desc.addr, dbuf[i]);
2635 FWOHCI_DMA_WRITE(db[i].db.desc.cmd, OHCI_INPUT_MORE | dsiz[i]);
2636 if (ir->flag & FWXFERQ_STREAM) {
2637 FWOHCI_DMA_SET(db[i].db.desc.cmd, OHCI_UPDATE);
2639 FWOHCI_DMA_WRITE(db[i].db.desc.res, dsiz[i]);
2641 ldesc = db_tr->dbcnt - 1;
2642 if (ir->flag & FWXFERQ_STREAM) {
2643 FWOHCI_DMA_SET(db[ldesc].db.desc.cmd, OHCI_INPUT_LAST);
2645 FWOHCI_DMA_SET(db[ldesc].db.desc.cmd, OHCI_BRANCH_ALWAYS);
2651 fwohci_arcv_swap(struct fw_pkt *fp, int len)
2656 #if BYTE_ORDER == BIG_ENDIAN
2660 ld0 = FWOHCI_DMA_READ(fp->mode.ld[0]);
2662 printf("ld0: x%08x\n", ld0);
2664 fp0 = (struct fw_pkt *)&ld0;
2665 /* determine length to swap */
2666 switch (fp0->mode.common.tcode) {
2671 case FWOHCITCODE_PHY:
2682 printf("Unknown tcode %d\n", fp0->mode.common.tcode);
2685 hlen = tinfo[fp0->mode.common.tcode].hdr_len;
2688 printf("splitted header\n");
2691 #if BYTE_ORDER == BIG_ENDIAN
2692 for(i = 0; i < slen/4; i ++)
2693 fp->mode.ld[i] = FWOHCI_DMA_READ(fp->mode.ld[i]);
2699 fwohci_get_plen(struct fwohci_softc *sc, struct fwohci_dbch *dbch, struct fw_pkt *fp)
2701 struct tcode_info *info;
2704 info = &tinfo[fp->mode.common.tcode];
2705 r = info->hdr_len + sizeof(uint32_t);
2706 if ((info->flag & FWTI_BLOCK_ASY) != 0)
2707 r += roundup2(fp->mode.wreqb.len, sizeof(uint32_t));
2709 if (r == sizeof(uint32_t)) {
2711 device_printf(sc->fc.dev, "Unknown tcode %d\n",
2712 fp->mode.common.tcode);
2716 if (r > dbch->xferq.psize) {
2717 device_printf(sc->fc.dev, "Invalid packet length %d\n", r);
2726 fwohci_arcv_free_buf(struct fwohci_softc *sc, struct fwohci_dbch *dbch,
2727 struct fwohcidb_tr *db_tr, uint32_t off, int wake)
2729 struct fwohcidb *db = &db_tr->db[0];
2731 FWOHCI_DMA_CLEAR(db->db.desc.depend, 0xf);
2732 FWOHCI_DMA_WRITE(db->db.desc.res, dbch->xferq.psize);
2733 FWOHCI_DMA_SET(dbch->bottom->db[0].db.desc.depend, 1);
2734 fwdma_sync_multiseg_all(dbch->am, BUS_DMASYNC_PREWRITE);
2735 dbch->bottom = db_tr;
2738 OWRITE(sc, OHCI_DMACTL(off), OHCI_CNTL_DMA_WAKE);
2742 fwohci_arcv(struct fwohci_softc *sc, struct fwohci_dbch *dbch, int count)
2744 struct fwohcidb_tr *db_tr;
2745 struct iovec vec[2];
2746 struct fw_pkt pktbuf;
2750 uint32_t stat, off, status, event;
2752 int len, plen, hlen, pcnt, offset;
2757 if(&sc->arrq == dbch){
2759 }else if(&sc->arrs == dbch){
2768 /* XXX we cannot handle a packet which lies in more than two buf */
2769 fwdma_sync_multiseg_all(dbch->am, BUS_DMASYNC_POSTREAD);
2770 fwdma_sync_multiseg_all(dbch->am, BUS_DMASYNC_POSTWRITE);
2771 status = FWOHCI_DMA_READ(db_tr->db[0].db.desc.res) >> OHCI_STATUS_SHIFT;
2772 resCount = FWOHCI_DMA_READ(db_tr->db[0].db.desc.res) & OHCI_COUNT_MASK;
2773 while (status & OHCI_CNTL_DMA_ACTIVE) {
2776 if (off == OHCI_ARQOFF)
2777 printf("buf 0x%08x, status 0x%04x, resCount 0x%04x\n",
2778 db_tr->bus_addr, status, resCount);
2780 len = dbch->xferq.psize - resCount;
2781 ld = (uint8_t *)db_tr->buf;
2782 if (dbch->pdb_tr == NULL) {
2783 len -= dbch->buf_offset;
2784 ld += dbch->buf_offset;
2787 bus_dmamap_sync(dbch->dmat, db_tr->dma_map,
2788 BUS_DMASYNC_POSTREAD);
2790 if (count >= 0 && count-- == 0)
2792 if(dbch->pdb_tr != NULL){
2793 /* we have a fragment in previous buffer */
2796 offset = dbch->buf_offset;
2799 buf = dbch->pdb_tr->buf + offset;
2800 rlen = dbch->xferq.psize - offset;
2802 printf("rlen=%d, offset=%d\n",
2803 rlen, dbch->buf_offset);
2804 if (dbch->buf_offset < 0) {
2805 /* splitted in header, pull up */
2808 p = (char *)&pktbuf;
2809 bcopy(buf, p, rlen);
2811 /* this must be too long but harmless */
2812 rlen = sizeof(pktbuf) - rlen;
2814 printf("why rlen < 0\n");
2815 bcopy(db_tr->buf, p, rlen);
2818 hlen = fwohci_arcv_swap(&pktbuf, sizeof(pktbuf));
2820 printf("hlen should be positive.");
2823 offset = sizeof(pktbuf);
2824 vec[0].iov_base = (char *)&pktbuf;
2825 vec[0].iov_len = offset;
2827 /* splitted in payload */
2829 vec[0].iov_base = buf;
2830 vec[0].iov_len = rlen;
2832 fp=(struct fw_pkt *)vec[0].iov_base;
2835 /* no fragment in previous buffer */
2836 fp=(struct fw_pkt *)ld;
2837 hlen = fwohci_arcv_swap(fp, len);
2841 dbch->pdb_tr = db_tr;
2842 dbch->buf_offset = - dbch->buf_offset;
2844 if (resCount != 0) {
2845 printf("resCount=%d hlen=%d\n",
2854 plen = fwohci_get_plen(sc, dbch, fp) - offset;
2856 /* minimum header size + trailer
2857 = sizeof(fw_pkt) so this shouldn't happens */
2858 printf("plen(%d) is negative! offset=%d\n",
2865 dbch->pdb_tr = db_tr;
2867 printf("splitted payload\n");
2869 if (resCount != 0) {
2870 printf("resCount=%d plen=%d"
2872 resCount, plen, len);
2877 vec[nvec].iov_base = ld;
2878 vec[nvec].iov_len = plen;
2882 dbch->buf_offset = ld - (uint8_t *)db_tr->buf;
2884 printf("nvec == 0\n");
2886 /* DMA result-code will be written at the tail of packet */
2887 stat = FWOHCI_DMA_READ(*(uint32_t *)(ld - sizeof(struct fwohci_trailer)));
2889 printf("plen: %d, stat %x\n",
2892 spd = (stat >> 21) & 0x3;
2893 event = (stat >> 16) & 0x1f;
2895 case FWOHCIEV_ACKPEND:
2897 printf("fwohci_arcv: ack pending tcode=0x%x..\n", fp->mode.common.tcode);
2900 case FWOHCIEV_ACKCOMPL:
2902 struct fw_rcv_buf rb;
2904 if ((vec[nvec-1].iov_len -=
2905 sizeof(struct fwohci_trailer)) == 0)
2914 case FWOHCIEV_BUSRST:
2915 if ((sc->fc.status != FWBUSRESET) &&
2916 (sc->fc.status != FWBUSINIT))
2917 printf("got BUSRST packet!?\n");
2920 device_printf(sc->fc.dev,
2921 "Async DMA Receive error err=%02x %s"
2922 " plen=%d offset=%d len=%d status=0x%08x"
2923 " tcode=0x%x, stat=0x%08x\n",
2924 event, fwohcicode[event], plen,
2925 dbch->buf_offset, len,
2926 OREAD(sc, OHCI_DMACTL(off)),
2927 fp->mode.common.tcode, stat);
2934 if (dbch->pdb_tr != NULL) {
2935 fwohci_arcv_free_buf(sc, dbch, dbch->pdb_tr,
2937 dbch->pdb_tr = NULL;
2942 if (resCount == 0) {
2943 /* done on this buffer */
2944 if (dbch->pdb_tr == NULL) {
2945 fwohci_arcv_free_buf(sc, dbch, db_tr, off, 1);
2946 dbch->buf_offset = 0;
2948 if (dbch->pdb_tr != db_tr)
2949 printf("pdb_tr != db_tr\n");
2950 db_tr = STAILQ_NEXT(db_tr, link);
2951 status = FWOHCI_DMA_READ(db_tr->db[0].db.desc.res)
2952 >> OHCI_STATUS_SHIFT;
2953 resCount = FWOHCI_DMA_READ(db_tr->db[0].db.desc.res)
2955 /* XXX check buffer overrun */
2958 dbch->buf_offset = dbch->xferq.psize - resCount;
2961 /* XXX make sure DMA is not dead */
2965 printf("fwohci_arcv: no packets\n");
2971 device_printf(sc->fc.dev, "AR DMA status=%x, ",
2972 OREAD(sc, OHCI_DMACTL(off)));
2973 dbch->pdb_tr = NULL;
2974 /* skip until resCount != 0 */
2975 printf(" skip buffer");
2976 while (resCount == 0) {
2978 fwohci_arcv_free_buf(sc, dbch, db_tr, off, 0);
2979 db_tr = STAILQ_NEXT(db_tr, link);
2980 resCount = FWOHCI_DMA_READ(db_tr->db[0].db.desc.res)
2985 dbch->buf_offset = dbch->xferq.psize - resCount;
2986 OWRITE(sc, OHCI_DMACTL(off), OHCI_CNTL_DMA_WAKE);