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 *, struct ifaltq_subque *);
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 ifq_set_cpuid(&ifp->if_snd, rman_get_cpuid(sc->irq_res));
288 sbsh_detach(device_t dev)
290 struct sbsh_softc *sc = device_get_softc(dev);
291 struct ifnet *ifp = &sc->arpcom.ac_if;
293 if (device_is_attached(dev)) {
294 lwkt_serialize_enter(ifp->if_serializer);
296 bus_teardown_intr(dev, sc->irq_res, sc->intr_hand);
297 lwkt_serialize_exit(ifp->if_serializer);
303 bus_release_resource(dev, SYS_RES_IRQ, 0, sc->irq_res);
305 bus_release_resource(dev, SYS_RES_MEMORY, PCIR_MAPS + 4,
314 sbsh_start(struct ifnet *ifp, struct ifaltq_subque *ifsq)
316 struct sbsh_softc *sc = ifp->if_softc;
318 ASSERT_ALTQ_SQ_DEFAULT(ifp, ifsq);
320 if (sc->state == ACTIVE)
321 start_xmit_frames(ifp->if_softc);
328 struct sbsh_softc *sc = xsc;
329 struct ifnet *ifp = &sc->arpcom.ac_if;
332 if ((ifp->if_flags & IFF_RUNNING) || sc->state == NOT_LOADED) {
336 bzero(&sc->in_stats, sizeof(struct sbni16_stats));
337 sc->head_xq = sc->tail_xq = sc->head_rq = sc->tail_rq = 0;
338 sc->head_tdesc = sc->head_rdesc = 0;
342 issue_cx28975_cmd(sc, _DSL_CLEAR_ERROR_CTRS, &t, 1);
343 if (issue_cx28975_cmd(sc, _DSL_ACTIVATION, &t, 1) == 0) {
344 sc->state = ACTIVATION;
346 ifp->if_flags |= IFF_RUNNING;
347 ifq_clr_oactive(&ifp->if_snd);
353 sbsh_stop(struct sbsh_softc *sc)
360 issue_cx28975_cmd(sc, _DSL_ACTIVATION, &t, 1);
361 if (sc->state == ACTIVE) {
363 issue_cx28975_cmd(sc, _DSL_FORCE_DEACTIVATE, &t, 1);
364 /* FIX! activation manager state */
366 /* Is it really must be done here? It calls from intr handler */
376 init_card(struct sbsh_softc *sc)
378 sc->state = NOT_LOADED;
379 sc->tbd = (struct hw_descr *) sc->mem_base;
380 sc->rbd = (struct hw_descr *) ((u_int8_t *)sc->mem_base + 0x400);
381 sc->regs = (struct sbni16_hw_regs *) ((u_int8_t *)sc->mem_base + 0x800);
382 sc->cmdp = (struct cx28975_cmdarea *) ((u_int8_t *)sc->mem_base + 0xc00);
391 sbsh_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data, struct ucred *cr)
393 struct sbsh_softc *sc = ifp->if_softc;
394 struct ifreq *ifr = (struct ifreq *) data;
395 struct cx28975_cfg cfg;
402 if ((error = priv_check_cred(cr, PRIV_ROOT, NULL_CRED_OKAY)) != 0)
404 if (ifp->if_flags & IFF_UP)
407 bcopy((caddr_t)ifr->ifr_data, (caddr_t)&cfg, sizeof cfg);
408 if (start_cx28975(sc, cfg) == 0) {
409 static char *modstr[] = {
410 "TCPAM32", "TCPAM16", "TCPAM8", "TCPAM4" };
411 if_printf(&sc->arpcom.ac_if, "%s, rate %d, %s\n",
412 cfg.master ? "master" : "slave",
413 cfg.lrate << 3, modstr[cfg.mod]);
415 if_printf(&sc->arpcom.ac_if,
416 "unable to load firmware\n");
422 if ((error = priv_check_cred(cr, PRIV_ROOT, NULL_CRED_OKAY)) != 0)
426 if (issue_cx28975_cmd(sc, _DSL_FAR_END_ATTEN, &t, 1))
428 ds.attenuat = sc->cmdp->out_data[0];
430 if (issue_cx28975_cmd(sc, _DSL_NOISE_MARGIN, &t, 1))
432 ds.nmr = sc->cmdp->out_data[0];
434 if (issue_cx28975_cmd(sc, _DSL_POWER_BACK_OFF_RESULT, &t, 1))
436 ds.tpbo = sc->cmdp->out_data[0];
437 ds.rpbo = sc->cmdp->out_data[1];
439 if (!issue_cx28975_cmd(sc, _DSL_HDSL_PERF_ERR_CTRS, &t, 1)) {
441 for (i = 0; i < 10; ++i)
442 ((u_int8_t *) &ds.losw)[i] =
443 sc->cmdp->out_data[i];
447 ds.status_1 = ((volatile u_int8_t *)sc->cmdp)[0x3c0];
448 ds.status_3 = ((volatile u_int8_t *)sc->cmdp)[0x3c2];
450 bcopy(&sc->in_stats, ifr->ifr_data, sizeof(struct sbni16_stats));
451 bcopy(&ds, (char *)ifr->ifr_data + sizeof(struct sbni16_stats),
452 sizeof(struct dsl_stats));
456 if (!(error = priv_check_cred(cr, PRIV_ROOT, NULL_CRED_OKAY))) {
457 bzero(&sc->in_stats, sizeof(struct sbni16_stats));
459 if (issue_cx28975_cmd(sc, _DSL_CLEAR_ERROR_CTRS, &t, 1))
464 if (ifp->if_flags & IFF_UP) {
465 if (!(ifp->if_flags & IFF_RUNNING)) {
466 if (sc->state == NOT_LOADED) {
467 if_printf(ifp, "firmware wasn't loaded\n");
473 if (ifp->if_flags & IFF_RUNNING) {
475 ifp->if_flags &= ~IFF_RUNNING;
485 error = ether_ioctl(ifp, cmd, data);
493 sbsh_shutdown(device_t dev)
495 struct sbsh_softc *sc = device_get_softc(dev);
497 lwkt_serialize_enter(sc->arpcom.ac_if.if_serializer);
499 lwkt_serialize_exit(sc->arpcom.ac_if.if_serializer);
503 sbsh_suspend(device_t dev)
505 struct sbsh_softc *sc = device_get_softc(dev);
507 lwkt_serialize_enter(sc->arpcom.ac_if.if_serializer);
509 lwkt_serialize_exit(sc->arpcom.ac_if.if_serializer);
515 sbsh_resume(device_t dev)
517 struct sbsh_softc *sc = device_get_softc(dev);
518 struct ifnet *ifp = &sc->arpcom.ac_if;
520 if (ifp->if_flags & IFF_UP)
528 sbsh_watchdog(struct ifnet *ifp)
530 struct sbsh_softc *sc = ifp->if_softc;
532 if_printf(ifp, "transmit timeout\n");
534 if (sc->regs->SR & TXS) {
536 if_printf(ifp, "interrupt posted but not delivered\n");
538 free_sent_buffers(sc);
541 /* -------------------------------------------------------------------------- */
546 struct sbsh_softc *sc = (struct sbsh_softc *)arg;
547 u_int8_t status = sc->regs->SR;
553 cx28975_interrupt(sc);
560 ++sc->in_stats.ufl_errs;
561 ++sc->arpcom.ac_if.if_oerrors;
567 alloc_rx_buffers(sc);
572 free_sent_buffers(sc);
576 ++sc->in_stats.crc_errs;
577 ++sc->arpcom.ac_if.if_ierrors;
582 ++sc->in_stats.ofl_errs;
583 ++sc->arpcom.ac_if.if_ierrors;
589 * Look for a first descriptor of a next packet, and write it's number
590 * into CTDR. Then enable the transmitter.
593 resume_tx(struct sbsh_softc *sc)
595 u_int32_t cur_tbd = sc->regs->CTDR;
597 while (cur_tbd != sc->regs->LTDR
598 && (sc->tbd[cur_tbd++].length & LAST_FRAG) == 0)
600 sc->regs->CTDR = cur_tbd;
601 sc->regs->CR |= TXEN;
605 start_xmit_frames(struct sbsh_softc *sc)
607 struct ifnet *ifp = &sc->arpcom.ac_if;
611 * Check if we have any free descriptor(s) and free space in
612 * our transmit queue.
614 while (sc->tail_xq != ((sc->head_xq - 1) & (XQLEN - 1))
615 && sc->regs->LTDR != ((sc->head_tdesc - 1) & 0x7f)) {
617 m = ifq_dequeue(&ifp->if_snd, NULL);
620 if (m->m_pkthdr.len) {
627 if (sc->regs->CTDR != sc->regs->LTDR)
628 ifq_set_oactive(&ifp->if_snd);
630 ifq_clr_oactive(&ifp->if_snd);
635 encap_frame(struct sbsh_softc *sc, struct mbuf *m_head)
642 for (m = m_head; !m->m_len; m = m->m_next)
645 cur_tbd = sc->regs->LTDR & 0x7f;
648 if (m->m_len < 5 || cur_tbd == ((sc->head_tdesc - 1) & 0x7f)) {
649 if ((m_head = repack(sc, m_head)) != NULL)
650 goto look_for_nonzero;
655 sc->tbd[cur_tbd].address = vtophys(mtod(m, vm_offset_t));
656 sc->tbd[cur_tbd].length = m->m_len;
660 } while (m && !m->m_len);
662 if (!m) { /* last fragment has been reached */
663 sc->tbd[cur_tbd].length |= LAST_FRAG;
671 sc->xq[sc->tail_xq++] = m_head;
672 sc->tail_xq &= (XQLEN - 1);
674 sc->regs->LTDR = cur_tbd;
675 ++sc->in_stats.sent_pkts;
676 ++sc->arpcom.ac_if.if_opackets;
680 repack(struct sbsh_softc *sc, struct mbuf *m)
684 MGETHDR(m_new, MB_DONTWAIT, MT_DATA);
686 if_printf (&sc->arpcom.ac_if,
687 "unable to get mbuf.\n");
691 if (m->m_pkthdr.len > MHLEN) {
692 MCLGET(m_new, MB_DONTWAIT);
693 if (!(m_new->m_flags & M_EXT)) {
695 if_printf (&sc->arpcom.ac_if,
696 "unable to get mbuf cluster.\n");
701 m_copydata(m, 0, m->m_pkthdr.len, mtod(m_new, caddr_t));
702 m_new->m_pkthdr.len = m_new->m_len = m->m_pkthdr.len;
708 free_sent_buffers(struct sbsh_softc *sc)
712 cur_tbd = sc->regs->CTDR;
714 while (sc->head_tdesc != cur_tbd) {
716 * Be careful! one element in xq may correspond to
717 * multiple descriptors.
719 if (sc->tbd[sc->head_tdesc].length & LAST_FRAG) {
720 m_freem(sc->xq[sc->head_xq++]);
721 sc->head_xq &= (XQLEN - 1);
724 sc->tbd[sc->head_tdesc].length = 0;
725 sc->head_tdesc = (sc->head_tdesc + 1) & 0x7f;
728 start_xmit_frames(sc);
732 * DON'T use free_sent_buffers to drop the queue!
735 alloc_rx_buffers(struct sbsh_softc *sc)
737 unsigned cur_rbd = sc->regs->LRDR & 0x7f;
740 while (sc->tail_rq != ((sc->head_rq - 1) & (RQLEN - 1))) {
741 MGETHDR(m, MB_DONTWAIT, MT_DATA);
743 if_printf (&sc->arpcom.ac_if,
744 "unable to get mbuf.\n");
748 if (SBNI16_MAX_FRAME > MHLEN) {
749 MCLGET(m, MB_DONTWAIT);
750 if (!(m->m_flags & M_EXT)) {
752 if_printf (&sc->arpcom.ac_if,
753 "unable to get mbuf cluster.\n");
756 m->m_pkthdr.len = m->m_len = MCLBYTES;
759 m_adj(m, 2); /* align ip on longword boundaries */
761 sc->rq[sc->tail_rq++] = m;
762 sc->tail_rq &= (RQLEN - 1);
764 sc->rbd[cur_rbd].address = vtophys(mtod(m, vm_offset_t));
765 sc->rbd[cur_rbd].length = 0;
766 sc->regs->LRDR = cur_rbd = (cur_rbd + 1) & 0x7f;
771 indicate_frames(struct sbsh_softc *sc)
773 struct ifnet *ifp = &sc->arpcom.ac_if;
774 unsigned cur_rbd = sc->regs->CRDR & 0x7f;
776 while (sc->head_rdesc != cur_rbd) {
777 struct mbuf *m = sc->rq[sc->head_rq++];
778 sc->head_rq &= (RQLEN - 1);
780 m->m_pkthdr.len = m->m_len =
781 sc->rbd[sc->head_rdesc].length & 0x7ff;
782 m->m_pkthdr.rcvif = ifp;
784 ifp->if_input(ifp, m);
785 ++sc->in_stats.rcvd_pkts;
788 sc->head_rdesc = (sc->head_rdesc + 1) & 0x7f;
793 drop_queues(struct sbsh_softc *sc)
795 while (sc->head_rq != sc->tail_rq) {
796 m_freem(sc->rq[sc->head_rq++]);
797 sc->head_rq &= (RQLEN - 1);
800 while (sc->head_xq != sc->tail_xq) {
801 m_freem(sc->xq[sc->head_xq++]);
802 sc->head_xq &= (XQLEN - 1);
806 /* -------------------------------------------------------------------------- */
809 activate(struct sbsh_softc *sc)
813 sc->regs->SR = 0xff; /* clear it! */
814 sc->regs->CTDR = sc->regs->LTDR = sc->regs->CRDR = sc->regs->LRDR = 0;
816 sc->head_tdesc = sc->head_rdesc = 0;
817 alloc_rx_buffers(sc);
819 sc->regs->CRB &= ~RXDE;
820 sc->regs->IMR = EXT | RXS | TXS | CRC | OFL | UFL;
821 sc->regs->CR |= TXEN | RXEN;
824 ++sc->in_stats.attempts;
826 sc->in_stats.last_time = tv.tv_sec;
827 start_xmit_frames(sc);
831 deactivate(struct sbsh_softc *sc)
833 sc->regs->CR &= ~(RXEN | TXEN);
834 sc->regs->CRB |= RXDE;
836 sc->regs->CTDR = sc->regs->LTDR;
837 sc->regs->CRDR = sc->regs->LRDR;
838 sc->state = ACTIVATION;
843 /* -------------------------------------------------------------------------- */
846 cx28975_interrupt(struct sbsh_softc *sc)
848 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");
875 /* -------------------------------------------------------------------------- */
878 start_cx28975(struct sbsh_softc *sc, struct cx28975_cfg cfg)
880 static char thresh[] = { +8, -4, -16, -40 };
882 volatile struct cx28975_cmdarea *p = sc->cmdp;
883 u_int8_t t, parm[12];
895 sc->regs->CR |= CMOD;
897 sc->regs->CR |= FMOD;
899 sc->regs->CR |= PMOD;
901 sc->regs->CRB |= RODD | RXDE;
903 sc->regs->CRB |= RDBE;
905 sc->regs->CRB |= WTBE;
907 tsleep(sc, 0, "sbsh", 0);
908 if ((p->out_ack & 0x1f) != _ACK_BOOT_WAKE_UP)
911 if (download_firmware(sc, cfg.firmw_image, cfg.firmw_len))
914 tsleep(sc, 0, "sbsh", 0);
915 if ((p->out_ack & 0x1f) != _ACK_OPER_WAKE_UP)
918 t = cfg.master ? 1 : 9;
919 if (issue_cx28975_cmd(sc, _DSL_SYSTEM_ENABLE, &t, 1))
923 if (issue_cx28975_cmd(sc, _DSL_SYSTEM_CONFIG, &t, 1))
926 *(u_int16_t *)parm = cfg.lrate >> 3;
927 parm[2] = parm[3] = parm[0];
928 parm[5] = cfg.lrate & 7;
929 parm[4] = parm[7] = 1;
931 if (issue_cx28975_cmd(sc, _DSL_MULTI_RATE_CONFIG, parm, 8))
934 parm[0] = 0x02 | (cfg.mod << 4);
936 if (issue_cx28975_cmd(sc, _DSL_TRAINING_MODE, parm, 2))
940 parm[0] = 0x04; /* pre-activation: G.hs */
941 parm[4] = 0x04; /* no remote configuration */
942 parm[7] = 0x01; /* annex A (default) */
943 parm[8] = 0xff; /* i-bit mask (all bits) */
944 if (issue_cx28975_cmd(sc, _DSL_PREACTIVATION_CFG, parm, 12))
947 parm[0] = 0x03; /* dying gasp time - 3 frames */
948 parm[1] = thresh[cfg.mod];
949 parm[2] = 0xff; /* attenuation */
950 parm[3] = 0x04; /* line probe NMR (+2 dB) */
951 parm[4] = 0x00; /* reserved */
953 if (issue_cx28975_cmd(sc, _DSL_THRESHOLDS, parm, 6))
956 t = cfg.master ? 0x23 : 0x21;
957 if (issue_cx28975_cmd(sc, _DSL_FR_PCM_CONFIG, &t, 1))
961 if (issue_cx28975_cmd(sc, _DSL_INTR_HOST_MASK, &t, 1))
969 download_firmware(struct sbsh_softc *sc, u_int8_t *img, u_int32_t img_len)
975 for (i = 0; i < img_len; ++i)
979 if (issue_cx28975_cmd(sc, _DSL_DOWNLOAD_START, (u_int8_t *) &t, 4))
982 for (i = 0; img_len >= 75; i += 75, img_len -= 75) {
983 if (issue_cx28975_cmd(sc, _DSL_DOWNLOAD_DATA, img + i, 75))
988 && issue_cx28975_cmd(sc, _DSL_DOWNLOAD_DATA, img + i, img_len))
991 t = (cksum ^ 0xff) + 1;
992 if (issue_cx28975_cmd(sc, _DSL_DOWNLOAD_END, (u_int8_t *) &t, 1))
999 issue_cx28975_cmd(struct sbsh_softc *sc, u_int8_t cmd,
1000 u_int8_t *data, u_int8_t size)
1002 volatile struct cx28975_cmdarea *p = sc->cmdp;
1003 volatile u_int8_t *databuf = p->in_data;
1011 p->in_length = --size;
1012 p->in_csum = 0xf0 ^ cmd ^ size ^ 0xaa;
1014 for (i = 0; i <= size; ++i) {
1016 *databuf++ = *data++; /* only 1 byte per cycle! */
1019 p->in_datasum = cksum ^ 0xaa;
1020 p->out_ack = _ACK_NOT_COMPLETE;
1021 p->intr_8051 = 0xfe;
1023 if (tsleep(sc, 0, "sbsh", hz << 3))
1026 while (p->out_ack == _ACK_NOT_COMPLETE)
1029 if ((p->out_ack & 0x1f) == _ACK_PASS) {