2 * Granch SBNI16 G.SHDSL Modem driver
3 * Written by Denis I. Timofeev, 2002-2003.
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 * $FreeBSD: src/sys/dev/sbsh/if_sbsh.c,v 1.3.2.1 2003/04/15 18:15:07 fjoe Exp $
29 #include <sys/param.h>
30 #include <sys/systm.h>
31 #include <sys/sockio.h>
33 #include <sys/malloc.h>
34 #include <sys/kernel.h>
37 #include <sys/socket.h>
38 #include <sys/random.h>
39 #include <sys/serialize.h>
42 #include <sys/thread2.h>
43 #include <sys/interrupt.h>
46 #include <net/ifq_var.h>
47 #include <net/if_arp.h>
48 #include <net/ethernet.h>
49 #include <net/if_media.h>
56 #include <bus/pci/pcireg.h>
57 #include <bus/pci/pcivar.h>
59 #include "if_sbshreg.h"
61 /* -------------------------------------------------------------------------- */
63 struct sbni16_hw_regs {
64 u_int8_t CR, CRB, SR, IMR, CTDR, LTDR, CRDR, LRDR;
72 struct cx28975_cmdarea {
90 u_int8_t out_data[75];
98 struct arpcom arpcom; /* ethernet common */
100 struct resource *mem_res;
101 struct resource *irq_res;
104 void *mem_base; /* mapped memory address */
106 volatile struct sbni16_hw_regs *regs;
107 volatile struct hw_descr *tbd;
108 volatile struct hw_descr *rbd;
109 volatile struct cx28975_cmdarea *cmdp;
111 /* SBNI16 controller statistics */
112 struct sbni16_stats {
113 u_int32_t sent_pkts, rcvd_pkts;
114 u_int32_t crc_errs, ufl_errs, ofl_errs, attempts, last_time;
117 /* transmit and reception queues */
118 struct mbuf *xq[XQLEN], *rq[RQLEN];
119 unsigned head_xq, tail_xq, head_rq, tail_rq;
121 /* the descriptors mapped onto the first buffers in xq and rq */
122 unsigned head_tdesc, head_rdesc;
127 u_int8_t *firmw_image;
133 u_int32_t fill_7e: 1;
140 /* SHDSL transceiver statistics */
142 u_int8_t status_1, status_3;
143 u_int8_t attenuat, nmr, tpbo, rpbo;
144 u_int16_t losw, segd, crc, sega, losd;
147 enum State { NOT_LOADED, DOWN, ACTIVATION, ACTIVE };
149 #define SIOCLOADFIRMW _IOWR('i', 67, struct ifreq)
150 #define SIOCGETSTATS _IOWR('i', 68, struct ifreq)
151 #define SIOCCLRSTATS _IOWR('i', 69, struct ifreq)
153 static int sbsh_probe(device_t);
154 static int sbsh_attach(device_t);
155 static int sbsh_detach(device_t);
156 static int sbsh_ioctl(struct ifnet *, u_long, caddr_t, struct ucred *);
157 static void sbsh_shutdown(device_t);
158 static int sbsh_suspend(device_t);
159 static int sbsh_resume(device_t);
160 static void sbsh_watchdog(struct ifnet *);
162 static void sbsh_start(struct ifnet *);
163 static void sbsh_init(void *);
164 static void sbsh_stop(struct sbsh_softc *);
165 static void init_card(struct sbsh_softc *);
166 static void sbsh_intr(void *);
167 static void resume_tx(struct sbsh_softc *);
168 static void start_xmit_frames(struct sbsh_softc *);
169 static void encap_frame(struct sbsh_softc *, struct mbuf *);
170 static struct mbuf * repack(struct sbsh_softc *, struct mbuf *);
171 static void free_sent_buffers(struct sbsh_softc *);
172 static void alloc_rx_buffers(struct sbsh_softc *);
173 static void indicate_frames(struct sbsh_softc *);
174 static void drop_queues(struct sbsh_softc *);
175 static void activate(struct sbsh_softc *);
176 static void deactivate(struct sbsh_softc *);
177 static void cx28975_interrupt(struct sbsh_softc *);
178 static int start_cx28975(struct sbsh_softc *, struct cx28975_cfg);
179 static int download_firmware(struct sbsh_softc *, u_int8_t *, u_int32_t);
180 static int issue_cx28975_cmd(struct sbsh_softc *, u_int8_t,
181 u_int8_t *, u_int8_t);
183 static device_method_t sbsh_methods[] = {
184 /* Device interface */
185 DEVMETHOD(device_probe, sbsh_probe),
186 DEVMETHOD(device_attach, sbsh_attach),
187 DEVMETHOD(device_detach, sbsh_detach),
188 DEVMETHOD(device_shutdown, sbsh_shutdown),
189 DEVMETHOD(device_suspend, sbsh_suspend),
190 DEVMETHOD(device_resume, sbsh_resume),
195 static driver_t sbsh_driver = {
198 sizeof(struct sbsh_softc)
201 static devclass_t sbsh_devclass;
203 DECLARE_DUMMY_MODULE(if_sbsh);
204 DRIVER_MODULE(if_sbsh, pci, sbsh_driver, sbsh_devclass, NULL, NULL);
207 sbsh_probe(device_t dev)
209 if (pci_get_vendor(dev) != SBNI16_VENDOR
210 || pci_get_device(dev) != SBNI16_DEVICE
211 || pci_get_subdevice(dev) != SBNI16_SUBDEV)
214 device_set_desc(dev, "Granch SBNI16 G.SHDSL Modem");
219 sbsh_attach(device_t dev)
221 struct sbsh_softc *sc;
223 int unit, error = 0, rid;
225 sc = device_get_softc(dev);
226 unit = device_get_unit(dev);
229 sc->mem_res = bus_alloc_resource(dev, SYS_RES_MEMORY, &rid,
230 0, ~0, 4096, RF_ACTIVE);
232 if (sc->mem_res == NULL) {
233 kprintf ("sbsh%d: couldn't map memory\n", unit);
239 sc->irq_res = bus_alloc_resource_any(dev, SYS_RES_IRQ, &rid,
240 RF_SHAREABLE | RF_ACTIVE);
242 if (sc->irq_res == NULL) {
243 kprintf("sbsh%d: couldn't map interrupt\n", unit);
248 sc->mem_base = rman_get_virtual(sc->mem_res);
250 /* generate ethernet MAC address */
251 *(u_int32_t *)sc->arpcom.ac_enaddr = htonl(0x00ff0192);
252 read_random_unlimited(sc->arpcom.ac_enaddr + 4, 2);
254 ifp = &sc->arpcom.ac_if;
256 if_initname(ifp, "sbsh", unit);
257 ifp->if_mtu = ETHERMTU;
258 ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST;
259 ifp->if_ioctl = sbsh_ioctl;
260 ifp->if_start = sbsh_start;
261 ifp->if_watchdog = sbsh_watchdog;
262 ifp->if_init = sbsh_init;
263 ifp->if_baudrate = 4600000;
264 ifq_set_maxlen(&ifp->if_snd, IFQ_MAXLEN);
265 ifq_set_ready(&ifp->if_snd);
267 ether_ifattach(ifp, sc->arpcom.ac_enaddr, NULL);
269 error = bus_setup_intr(dev, sc->irq_res, INTR_MPSAFE,
270 sbsh_intr, sc, &sc->intr_hand,
274 kprintf("sbsh%d: couldn't set up irq\n", unit);
278 ifp->if_cpuid = ithread_cpuid(rman_get_start(sc->irq_res));
279 KKASSERT(ifp->if_cpuid >= 0 && ifp->if_cpuid < ncpus);
289 sbsh_detach(device_t dev)
291 struct sbsh_softc *sc = device_get_softc(dev);
292 struct ifnet *ifp = &sc->arpcom.ac_if;
294 if (device_is_attached(dev)) {
295 lwkt_serialize_enter(ifp->if_serializer);
297 bus_teardown_intr(dev, sc->irq_res, sc->intr_hand);
298 lwkt_serialize_exit(ifp->if_serializer);
304 bus_release_resource(dev, SYS_RES_IRQ, 0, sc->irq_res);
306 bus_release_resource(dev, SYS_RES_MEMORY, PCIR_MAPS + 4,
315 sbsh_start(struct ifnet *ifp)
317 struct sbsh_softc *sc = ifp->if_softc;
319 if (sc->state == ACTIVE)
320 start_xmit_frames(ifp->if_softc);
327 struct sbsh_softc *sc = xsc;
328 struct ifnet *ifp = &sc->arpcom.ac_if;
331 if ((ifp->if_flags & IFF_RUNNING) || sc->state == NOT_LOADED) {
335 bzero(&sc->in_stats, sizeof(struct sbni16_stats));
336 sc->head_xq = sc->tail_xq = sc->head_rq = sc->tail_rq = 0;
337 sc->head_tdesc = sc->head_rdesc = 0;
341 issue_cx28975_cmd(sc, _DSL_CLEAR_ERROR_CTRS, &t, 1);
342 if (issue_cx28975_cmd(sc, _DSL_ACTIVATION, &t, 1) == 0) {
343 sc->state = ACTIVATION;
345 ifp->if_flags |= IFF_RUNNING;
346 ifp->if_flags &= ~IFF_OACTIVE;
352 sbsh_stop(struct sbsh_softc *sc)
359 issue_cx28975_cmd(sc, _DSL_ACTIVATION, &t, 1);
360 if (sc->state == ACTIVE) {
362 issue_cx28975_cmd(sc, _DSL_FORCE_DEACTIVATE, &t, 1);
363 /* FIX! activation manager state */
365 /* Is it really must be done here? It calls from intr handler */
375 init_card(struct sbsh_softc *sc)
377 sc->state = NOT_LOADED;
378 sc->tbd = (struct hw_descr *) sc->mem_base;
379 sc->rbd = (struct hw_descr *) ((u_int8_t *)sc->mem_base + 0x400);
380 sc->regs = (struct sbni16_hw_regs *) ((u_int8_t *)sc->mem_base + 0x800);
381 sc->cmdp = (struct cx28975_cmdarea *) ((u_int8_t *)sc->mem_base + 0xc00);
390 sbsh_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data, struct ucred *cr)
392 struct sbsh_softc *sc = ifp->if_softc;
393 struct ifreq *ifr = (struct ifreq *) data;
394 struct cx28975_cfg cfg;
401 if ((error = priv_check_cred(cr, PRIV_ROOT, NULL_CRED_OKAY)) != 0)
403 if (ifp->if_flags & IFF_UP)
406 bcopy((caddr_t)ifr->ifr_data, (caddr_t)&cfg, sizeof cfg);
407 if (start_cx28975(sc, cfg) == 0) {
408 static char *modstr[] = {
409 "TCPAM32", "TCPAM16", "TCPAM8", "TCPAM4" };
410 if_printf(&sc->arpcom.ac_if, "%s, rate %d, %s\n",
411 cfg.master ? "master" : "slave",
412 cfg.lrate << 3, modstr[cfg.mod]);
414 if_printf(&sc->arpcom.ac_if,
415 "unable to load firmware\n");
421 if ((error = priv_check_cred(cr, PRIV_ROOT, NULL_CRED_OKAY)) != 0)
425 if (issue_cx28975_cmd(sc, _DSL_FAR_END_ATTEN, &t, 1))
427 ds.attenuat = sc->cmdp->out_data[0];
429 if (issue_cx28975_cmd(sc, _DSL_NOISE_MARGIN, &t, 1))
431 ds.nmr = sc->cmdp->out_data[0];
433 if (issue_cx28975_cmd(sc, _DSL_POWER_BACK_OFF_RESULT, &t, 1))
435 ds.tpbo = sc->cmdp->out_data[0];
436 ds.rpbo = sc->cmdp->out_data[1];
438 if (!issue_cx28975_cmd(sc, _DSL_HDSL_PERF_ERR_CTRS, &t, 1)) {
440 for (i = 0; i < 10; ++i)
441 ((u_int8_t *) &ds.losw)[i] =
442 sc->cmdp->out_data[i];
446 ds.status_1 = ((volatile u_int8_t *)sc->cmdp)[0x3c0];
447 ds.status_3 = ((volatile u_int8_t *)sc->cmdp)[0x3c2];
449 bcopy(&sc->in_stats, ifr->ifr_data, sizeof(struct sbni16_stats));
450 bcopy(&ds, (char *)ifr->ifr_data + sizeof(struct sbni16_stats),
451 sizeof(struct dsl_stats));
455 if (!(error = priv_check_cred(cr, PRIV_ROOT, NULL_CRED_OKAY))) {
456 bzero(&sc->in_stats, sizeof(struct sbni16_stats));
458 if (issue_cx28975_cmd(sc, _DSL_CLEAR_ERROR_CTRS, &t, 1))
463 if (ifp->if_flags & IFF_UP) {
464 if (!(ifp->if_flags & IFF_RUNNING)) {
465 if (sc->state == NOT_LOADED) {
466 if_printf(ifp, "firmware wasn't loaded\n");
472 if (ifp->if_flags & IFF_RUNNING) {
474 ifp->if_flags &= ~IFF_RUNNING;
484 error = ether_ioctl(ifp, cmd, data);
492 sbsh_shutdown(device_t dev)
494 struct sbsh_softc *sc = device_get_softc(dev);
496 lwkt_serialize_enter(sc->arpcom.ac_if.if_serializer);
498 lwkt_serialize_exit(sc->arpcom.ac_if.if_serializer);
502 sbsh_suspend(device_t dev)
504 struct sbsh_softc *sc = device_get_softc(dev);
506 lwkt_serialize_enter(sc->arpcom.ac_if.if_serializer);
508 lwkt_serialize_exit(sc->arpcom.ac_if.if_serializer);
514 sbsh_resume(device_t dev)
516 struct sbsh_softc *sc = device_get_softc(dev);
517 struct ifnet *ifp = &sc->arpcom.ac_if;
519 if (ifp->if_flags & IFF_UP)
527 sbsh_watchdog(struct ifnet *ifp)
529 struct sbsh_softc *sc = ifp->if_softc;
531 if_printf(ifp, "transmit timeout\n");
533 if (sc->regs->SR & TXS) {
535 if_printf(ifp, "interrupt posted but not delivered\n");
537 free_sent_buffers(sc);
540 /* -------------------------------------------------------------------------- */
545 struct sbsh_softc *sc = (struct sbsh_softc *)arg;
546 u_int8_t status = sc->regs->SR;
552 cx28975_interrupt(sc);
559 ++sc->in_stats.ufl_errs;
560 ++sc->arpcom.ac_if.if_oerrors;
566 alloc_rx_buffers(sc);
571 free_sent_buffers(sc);
575 ++sc->in_stats.crc_errs;
576 ++sc->arpcom.ac_if.if_ierrors;
581 ++sc->in_stats.ofl_errs;
582 ++sc->arpcom.ac_if.if_ierrors;
588 * Look for a first descriptor of a next packet, and write it's number
589 * into CTDR. Then enable the transmitter.
592 resume_tx(struct sbsh_softc *sc)
594 u_int32_t cur_tbd = sc->regs->CTDR;
596 while (cur_tbd != sc->regs->LTDR
597 && (sc->tbd[cur_tbd++].length & LAST_FRAG) == 0)
599 sc->regs->CTDR = cur_tbd;
600 sc->regs->CR |= TXEN;
604 start_xmit_frames(struct sbsh_softc *sc)
606 struct ifnet *ifp = &sc->arpcom.ac_if;
610 * Check if we have any free descriptor(s) and free space in
611 * our transmit queue.
613 while (sc->tail_xq != ((sc->head_xq - 1) & (XQLEN - 1))
614 && sc->regs->LTDR != ((sc->head_tdesc - 1) & 0x7f)) {
616 m = ifq_dequeue(&ifp->if_snd, NULL);
619 if (m->m_pkthdr.len) {
626 if (sc->regs->CTDR != sc->regs->LTDR)
627 ifp->if_flags |= IFF_OACTIVE;
629 ifp->if_flags &= ~IFF_OACTIVE;
634 encap_frame(struct sbsh_softc *sc, struct mbuf *m_head)
641 for (m = m_head; !m->m_len; m = m->m_next)
644 cur_tbd = sc->regs->LTDR & 0x7f;
647 if (m->m_len < 5 || cur_tbd == ((sc->head_tdesc - 1) & 0x7f)) {
648 if ((m_head = repack(sc, m_head)) != NULL)
649 goto look_for_nonzero;
654 sc->tbd[cur_tbd].address = vtophys(mtod(m, vm_offset_t));
655 sc->tbd[cur_tbd].length = m->m_len;
659 } while (m && !m->m_len);
661 if (!m) { /* last fragment has been reached */
662 sc->tbd[cur_tbd].length |= LAST_FRAG;
670 sc->xq[sc->tail_xq++] = m_head;
671 sc->tail_xq &= (XQLEN - 1);
673 sc->regs->LTDR = cur_tbd;
674 ++sc->in_stats.sent_pkts;
675 ++sc->arpcom.ac_if.if_opackets;
679 repack(struct sbsh_softc *sc, struct mbuf *m)
683 MGETHDR(m_new, MB_DONTWAIT, MT_DATA);
685 if_printf (&sc->arpcom.ac_if,
686 "unable to get mbuf.\n");
690 if (m->m_pkthdr.len > MHLEN) {
691 MCLGET(m_new, MB_DONTWAIT);
692 if (!(m_new->m_flags & M_EXT)) {
694 if_printf (&sc->arpcom.ac_if,
695 "unable to get mbuf cluster.\n");
700 m_copydata(m, 0, m->m_pkthdr.len, mtod(m_new, caddr_t));
701 m_new->m_pkthdr.len = m_new->m_len = m->m_pkthdr.len;
707 free_sent_buffers(struct sbsh_softc *sc)
711 cur_tbd = sc->regs->CTDR;
713 while (sc->head_tdesc != cur_tbd) {
715 * Be careful! one element in xq may correspond to
716 * multiple descriptors.
718 if (sc->tbd[sc->head_tdesc].length & LAST_FRAG) {
719 m_freem(sc->xq[sc->head_xq++]);
720 sc->head_xq &= (XQLEN - 1);
723 sc->tbd[sc->head_tdesc].length = 0;
724 sc->head_tdesc = (sc->head_tdesc + 1) & 0x7f;
727 start_xmit_frames(sc);
731 * DON'T use free_sent_buffers to drop the queue!
734 alloc_rx_buffers(struct sbsh_softc *sc)
736 unsigned cur_rbd = sc->regs->LRDR & 0x7f;
739 while (sc->tail_rq != ((sc->head_rq - 1) & (RQLEN - 1))) {
740 MGETHDR(m, MB_DONTWAIT, MT_DATA);
742 if_printf (&sc->arpcom.ac_if,
743 "unable to get mbuf.\n");
747 if (SBNI16_MAX_FRAME > MHLEN) {
748 MCLGET(m, MB_DONTWAIT);
749 if (!(m->m_flags & M_EXT)) {
751 if_printf (&sc->arpcom.ac_if,
752 "unable to get mbuf cluster.\n");
755 m->m_pkthdr.len = m->m_len = MCLBYTES;
758 m_adj(m, 2); /* align ip on longword boundaries */
760 sc->rq[sc->tail_rq++] = m;
761 sc->tail_rq &= (RQLEN - 1);
763 sc->rbd[cur_rbd].address = vtophys(mtod(m, vm_offset_t));
764 sc->rbd[cur_rbd].length = 0;
765 sc->regs->LRDR = cur_rbd = (cur_rbd + 1) & 0x7f;
770 indicate_frames(struct sbsh_softc *sc)
772 struct ifnet *ifp = &sc->arpcom.ac_if;
773 unsigned cur_rbd = sc->regs->CRDR & 0x7f;
775 while (sc->head_rdesc != cur_rbd) {
776 struct mbuf *m = sc->rq[sc->head_rq++];
777 sc->head_rq &= (RQLEN - 1);
779 m->m_pkthdr.len = m->m_len =
780 sc->rbd[sc->head_rdesc].length & 0x7ff;
781 m->m_pkthdr.rcvif = ifp;
783 ifp->if_input(ifp, m);
784 ++sc->in_stats.rcvd_pkts;
787 sc->head_rdesc = (sc->head_rdesc + 1) & 0x7f;
792 drop_queues(struct sbsh_softc *sc)
794 while (sc->head_rq != sc->tail_rq) {
795 m_freem(sc->rq[sc->head_rq++]);
796 sc->head_rq &= (RQLEN - 1);
799 while (sc->head_xq != sc->tail_xq) {
800 m_freem(sc->xq[sc->head_xq++]);
801 sc->head_xq &= (XQLEN - 1);
805 /* -------------------------------------------------------------------------- */
808 activate(struct sbsh_softc *sc)
812 sc->regs->SR = 0xff; /* clear it! */
813 sc->regs->CTDR = sc->regs->LTDR = sc->regs->CRDR = sc->regs->LRDR = 0;
815 sc->head_tdesc = sc->head_rdesc = 0;
816 alloc_rx_buffers(sc);
818 sc->regs->CRB &= ~RXDE;
819 sc->regs->IMR = EXT | RXS | TXS | CRC | OFL | UFL;
820 sc->regs->CR |= TXEN | RXEN;
823 ++sc->in_stats.attempts;
825 sc->in_stats.last_time = tv.tv_sec;
826 start_xmit_frames(sc);
830 deactivate(struct sbsh_softc *sc)
832 sc->regs->CR &= ~(RXEN | TXEN);
833 sc->regs->CRB |= RXDE;
835 sc->regs->CTDR = sc->regs->LTDR;
836 sc->regs->CRDR = sc->regs->LRDR;
837 sc->state = ACTIVATION;
842 /* -------------------------------------------------------------------------- */
845 cx28975_interrupt(struct sbsh_softc *sc)
847 volatile struct cx28975_cmdarea *p = sc->cmdp;
850 if (p->intr_host != 0xfe)
853 if (p->out_ack & 0x80) {
854 if (*((volatile u_int8_t *)p + 0x3c7) & 2) {
855 if (sc->state != ACTIVE
856 && (*((volatile u_int8_t *)p + 0x3c0) & 0xc0) == 0x40) {
858 if_printf(&sc->arpcom.ac_if, "connected to peer\n");
859 } else if (sc->state == ACTIVE
860 && (*((volatile u_int8_t *)p + 0x3c0) & 0xc0) != 0x40) {
862 if_printf(&sc->arpcom.ac_if, "carrier lost\n");
877 /* -------------------------------------------------------------------------- */
880 start_cx28975(struct sbsh_softc *sc, struct cx28975_cfg cfg)
882 static char thresh[] = { +8, -4, -16, -40 };
884 volatile struct cx28975_cmdarea *p = sc->cmdp;
885 u_int8_t t, parm[12];
897 sc->regs->CR |= CMOD;
899 sc->regs->CR |= FMOD;
901 sc->regs->CR |= PMOD;
903 sc->regs->CRB |= RODD | RXDE;
905 sc->regs->CRB |= RDBE;
907 sc->regs->CRB |= WTBE;
909 tsleep(sc, 0, "sbsh", 0);
910 if ((p->out_ack & 0x1f) != _ACK_BOOT_WAKE_UP)
913 if (download_firmware(sc, cfg.firmw_image, cfg.firmw_len))
916 tsleep(sc, 0, "sbsh", 0);
917 if ((p->out_ack & 0x1f) != _ACK_OPER_WAKE_UP)
920 t = cfg.master ? 1 : 9;
921 if (issue_cx28975_cmd(sc, _DSL_SYSTEM_ENABLE, &t, 1))
925 if (issue_cx28975_cmd(sc, _DSL_SYSTEM_CONFIG, &t, 1))
928 *(u_int16_t *)parm = cfg.lrate >> 3;
929 parm[2] = parm[3] = parm[0];
930 parm[5] = cfg.lrate & 7;
931 parm[4] = parm[7] = 1;
933 if (issue_cx28975_cmd(sc, _DSL_MULTI_RATE_CONFIG, parm, 8))
936 parm[0] = 0x02 | (cfg.mod << 4);
938 if (issue_cx28975_cmd(sc, _DSL_TRAINING_MODE, parm, 2))
942 parm[0] = 0x04; /* pre-activation: G.hs */
943 parm[4] = 0x04; /* no remote configuration */
944 parm[7] = 0x01; /* annex A (default) */
945 parm[8] = 0xff; /* i-bit mask (all bits) */
946 if (issue_cx28975_cmd(sc, _DSL_PREACTIVATION_CFG, parm, 12))
949 parm[0] = 0x03; /* dying gasp time - 3 frames */
950 parm[1] = thresh[cfg.mod];
951 parm[2] = 0xff; /* attenuation */
952 parm[3] = 0x04; /* line probe NMR (+2 dB) */
953 parm[4] = 0x00; /* reserved */
955 if (issue_cx28975_cmd(sc, _DSL_THRESHOLDS, parm, 6))
958 t = cfg.master ? 0x23 : 0x21;
959 if (issue_cx28975_cmd(sc, _DSL_FR_PCM_CONFIG, &t, 1))
963 if (issue_cx28975_cmd(sc, _DSL_INTR_HOST_MASK, &t, 1))
971 download_firmware(struct sbsh_softc *sc, u_int8_t *img, u_int32_t img_len)
977 for (i = 0; i < img_len; ++i)
981 if (issue_cx28975_cmd(sc, _DSL_DOWNLOAD_START, (u_int8_t *) &t, 4))
984 for (i = 0; img_len >= 75; i += 75, img_len -= 75) {
985 if (issue_cx28975_cmd(sc, _DSL_DOWNLOAD_DATA, img + i, 75))
990 && issue_cx28975_cmd(sc, _DSL_DOWNLOAD_DATA, img + i, img_len))
993 t = (cksum ^ 0xff) + 1;
994 if (issue_cx28975_cmd(sc, _DSL_DOWNLOAD_END, (u_int8_t *) &t, 1))
1001 issue_cx28975_cmd(struct sbsh_softc *sc, u_int8_t cmd,
1002 u_int8_t *data, u_int8_t size)
1004 volatile struct cx28975_cmdarea *p = sc->cmdp;
1005 volatile u_int8_t *databuf = p->in_data;
1013 p->in_length = --size;
1014 p->in_csum = 0xf0 ^ cmd ^ size ^ 0xaa;
1016 for (i = 0; i <= size; ++i) {
1018 *databuf++ = *data++; /* only 1 byte per cycle! */
1021 p->in_datasum = cksum ^ 0xaa;
1022 p->out_ack = _ACK_NOT_COMPLETE;
1023 p->intr_8051 = 0xfe;
1025 if (tsleep(sc, 0, "sbsh", hz << 3))
1028 while (p->out_ack == _ACK_NOT_COMPLETE)
1031 if ((p->out_ack & 0x1f) == _ACK_PASS) {