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 $
27 * $DragonFly: src/sys/dev/netif/sbsh/if_sbsh.c,v 1.15 2005/02/19 23:05:07 joerg Exp $
30 #include <sys/param.h>
31 #include <sys/systm.h>
32 #include <sys/sockio.h>
34 #include <sys/malloc.h>
35 #include <sys/kernel.h>
37 #include <sys/socket.h>
38 #include <sys/random.h>
39 #include <machine/clock.h>
40 #include <machine/stdarg.h>
43 #include <net/ifq_var.h>
44 #include <net/if_arp.h>
45 #include <net/ethernet.h>
46 #include <net/if_media.h>
52 #include <machine/bus.h>
53 #include <machine/resource.h>
57 #include <bus/pci/pcireg.h>
58 #include <bus/pci/pcivar.h>
60 #include "if_sbshreg.h"
62 /* -------------------------------------------------------------------------- */
64 struct sbni16_hw_regs {
65 u_int8_t CR, CRB, SR, IMR, CTDR, LTDR, CRDR, LRDR;
73 struct cx28975_cmdarea {
91 u_int8_t out_data[75];
99 struct arpcom arpcom; /* ethernet common */
101 struct resource *mem_res;
102 struct resource *irq_res;
105 void *mem_base; /* mapped memory address */
107 volatile struct sbni16_hw_regs *regs;
108 volatile struct hw_descr *tbd;
109 volatile struct hw_descr *rbd;
110 volatile struct cx28975_cmdarea *cmdp;
112 /* SBNI16 controller statistics */
113 struct sbni16_stats {
114 u_int32_t sent_pkts, rcvd_pkts;
115 u_int32_t crc_errs, ufl_errs, ofl_errs, attempts, last_time;
118 /* transmit and reception queues */
119 struct mbuf *xq[XQLEN], *rq[RQLEN];
120 unsigned head_xq, tail_xq, head_rq, tail_rq;
122 /* the descriptors mapped onto the first buffers in xq and rq */
123 unsigned head_tdesc, head_rdesc;
128 u_int8_t *firmw_image;
134 u_int32_t fill_7e: 1;
141 /* SHDSL transceiver statistics */
143 u_int8_t status_1, status_3;
144 u_int8_t attenuat, nmr, tpbo, rpbo;
145 u_int16_t losw, segd, crc, sega, losd;
148 enum State { NOT_LOADED, DOWN, ACTIVATION, ACTIVE };
150 #define SIOCLOADFIRMW _IOWR('i', 67, struct ifreq)
151 #define SIOCGETSTATS _IOWR('i', 68, struct ifreq)
152 #define SIOCCLRSTATS _IOWR('i', 69, struct ifreq)
154 static int sbsh_probe(device_t);
155 static int sbsh_attach(device_t);
156 static int sbsh_detach(device_t);
157 static int sbsh_ioctl(struct ifnet *, u_long, caddr_t, struct ucred *);
158 static void sbsh_shutdown(device_t);
159 static int sbsh_suspend(device_t);
160 static int sbsh_resume(device_t);
161 static void sbsh_watchdog(struct ifnet *);
163 static void sbsh_start(struct ifnet *);
164 static void sbsh_init(void *);
165 static void sbsh_stop(struct sbsh_softc *);
166 static void init_card(struct sbsh_softc *);
167 static void sbsh_intr(void *);
168 static void resume_tx(struct sbsh_softc *);
169 static void start_xmit_frames(struct sbsh_softc *);
170 static void encap_frame(struct sbsh_softc *, struct mbuf *);
171 static struct mbuf * repack(struct sbsh_softc *, struct mbuf *);
172 static void free_sent_buffers(struct sbsh_softc *);
173 static void alloc_rx_buffers(struct sbsh_softc *);
174 static void indicate_frames(struct sbsh_softc *);
175 static void drop_queues(struct sbsh_softc *);
176 static void activate(struct sbsh_softc *);
177 static void deactivate(struct sbsh_softc *);
178 static void cx28975_interrupt(struct sbsh_softc *);
179 static int start_cx28975(struct sbsh_softc *, struct cx28975_cfg);
180 static int download_firmware(struct sbsh_softc *, u_int8_t *, u_int32_t);
181 static int issue_cx28975_cmd(struct sbsh_softc *, u_int8_t,
182 u_int8_t *, u_int8_t);
184 static device_method_t sbsh_methods[] = {
185 /* Device interface */
186 DEVMETHOD(device_probe, sbsh_probe),
187 DEVMETHOD(device_attach, sbsh_attach),
188 DEVMETHOD(device_detach, sbsh_detach),
189 DEVMETHOD(device_shutdown, sbsh_shutdown),
190 DEVMETHOD(device_suspend, sbsh_suspend),
191 DEVMETHOD(device_resume, sbsh_resume),
196 static driver_t sbsh_driver = {
199 sizeof(struct sbsh_softc)
202 static devclass_t sbsh_devclass;
204 DECLARE_DUMMY_MODULE(if_sbsh);
205 DRIVER_MODULE(if_sbsh, pci, sbsh_driver, sbsh_devclass, 0, 0);
208 sbsh_probe(device_t dev)
210 if (pci_get_vendor(dev) != SBNI16_VENDOR
211 || pci_get_device(dev) != SBNI16_DEVICE
212 || pci_get_subdevice(dev) != SBNI16_SUBDEV)
215 device_set_desc(dev, "Granch SBNI16 G.SHDSL Modem");
220 sbsh_attach(device_t dev)
222 struct sbsh_softc *sc;
224 int unit, error = 0, rid, s;
228 sc = device_get_softc(dev);
229 unit = device_get_unit(dev);
232 sc->mem_res = bus_alloc_resource(dev, SYS_RES_MEMORY, &rid,
233 0, ~0, 4096, RF_ACTIVE);
235 if (sc->mem_res == NULL) {
236 printf ("sbsh%d: couldn't map memory\n", unit);
242 sc->irq_res = bus_alloc_resource(dev, SYS_RES_IRQ, &rid, 0, ~0, 1,
243 RF_SHAREABLE | RF_ACTIVE);
245 if (sc->irq_res == NULL) {
246 printf("sbsh%d: couldn't map interrupt\n", unit);
247 bus_release_resource(dev, SYS_RES_MEMORY,
248 PCIR_MAPS + 4, sc->mem_res);
253 sc->mem_base = rman_get_virtual(sc->mem_res);
256 error = bus_setup_intr(dev, sc->irq_res, INTR_TYPE_NET,
257 sbsh_intr, sc, &sc->intr_hand);
259 bus_release_resource(dev, SYS_RES_IRQ, 0, sc->irq_res);
260 bus_release_resource(dev, SYS_RES_MEMORY,
261 PCIR_MAPS + 4, sc->mem_res);
262 printf("sbsh%d: couldn't set up irq\n", unit);
266 /* generate ethernet MAC address */
267 *(u_int32_t *)sc->arpcom.ac_enaddr = htonl(0x00ff0192);
268 read_random_unlimited(sc->arpcom.ac_enaddr + 4, 2);
270 ifp = &sc->arpcom.ac_if;
272 if_initname(ifp, "sbsh", unit);
273 ifp->if_mtu = ETHERMTU;
274 ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST;
275 ifp->if_ioctl = sbsh_ioctl;
276 ifp->if_start = sbsh_start;
277 ifp->if_watchdog = sbsh_watchdog;
278 ifp->if_init = sbsh_init;
279 ifp->if_baudrate = 4600000;
280 ifq_set_maxlen(&ifp->if_snd, IFQ_MAXLEN);
281 ifq_set_ready(&ifp->if_snd);
283 ether_ifattach(ifp, sc->arpcom.ac_enaddr);
291 sbsh_detach(device_t dev)
293 struct sbsh_softc *sc;
299 sc = device_get_softc(dev);
300 ifp = &sc->arpcom.ac_if;
305 bus_teardown_intr(dev, sc->irq_res, sc->intr_hand);
306 bus_release_resource(dev, SYS_RES_IRQ, 0, sc->irq_res);
307 bus_release_resource(dev, SYS_RES_MEMORY, PCIR_MAPS + 4, sc->mem_res);
315 sbsh_start(struct ifnet *ifp)
317 struct sbsh_softc *sc = ifp->if_softc;
320 if (sc->state != ACTIVE)
324 start_xmit_frames(ifp->if_softc);
332 struct sbsh_softc *sc = xsc;
333 struct ifnet *ifp = &sc->arpcom.ac_if;
337 if ((ifp->if_flags & IFF_RUNNING) || sc->state == NOT_LOADED)
342 bzero(&sc->in_stats, sizeof(struct sbni16_stats));
343 sc->head_xq = sc->tail_xq = sc->head_rq = sc->tail_rq = 0;
344 sc->head_tdesc = sc->head_rdesc = 0;
348 issue_cx28975_cmd(sc, _DSL_CLEAR_ERROR_CTRS, &t, 1);
349 if (issue_cx28975_cmd(sc, _DSL_ACTIVATION, &t, 1) == 0) {
350 sc->state = ACTIVATION;
352 ifp->if_flags |= IFF_RUNNING;
353 ifp->if_flags &= ~IFF_OACTIVE;
361 sbsh_stop(struct sbsh_softc *sc)
370 issue_cx28975_cmd(sc, _DSL_ACTIVATION, &t, 1);
371 if (sc->state == ACTIVE) {
373 issue_cx28975_cmd(sc, _DSL_FORCE_DEACTIVATE, &t, 1);
374 /* FIX! activation manager state */
376 /* Is it really must be done here? It calls from intr handler */
387 init_card(struct sbsh_softc *sc)
389 sc->state = NOT_LOADED;
390 sc->tbd = (struct hw_descr *) sc->mem_base;
391 sc->rbd = (struct hw_descr *) ((u_int8_t *)sc->mem_base + 0x400);
392 sc->regs = (struct sbni16_hw_regs *) ((u_int8_t *)sc->mem_base + 0x800);
393 sc->cmdp = (struct cx28975_cmdarea *) ((u_int8_t *)sc->mem_base + 0xc00);
402 sbsh_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data, struct ucred *cr)
404 struct sbsh_softc *sc = ifp->if_softc;
405 struct ifreq *ifr = (struct ifreq *) data;
406 struct cx28975_cfg cfg;
415 if ((error = suser_cred(cr, NULL_CRED_OKAY)) != 0)
417 if (ifp->if_flags & IFF_UP)
420 bcopy((caddr_t)ifr->ifr_data, (caddr_t)&cfg, sizeof cfg);
421 if (start_cx28975(sc, cfg) == 0) {
422 static char *modstr[] = {
423 "TCPAM32", "TCPAM16", "TCPAM8", "TCPAM4" };
424 if_printf(&sc->arpcom.ac_if, "%s, rate %d, %s\n",
425 cfg.master ? "master" : "slave",
426 cfg.lrate << 3, modstr[cfg.mod]);
428 if_printf(&sc->arpcom.ac_if,
429 "unable to load firmware\n");
435 if ((error = suser_cred(cr, NULL_CRED_OKAY)) != 0)
439 if (issue_cx28975_cmd(sc, _DSL_FAR_END_ATTEN, &t, 1))
441 ds.attenuat = sc->cmdp->out_data[0];
443 if (issue_cx28975_cmd(sc, _DSL_NOISE_MARGIN, &t, 1))
445 ds.nmr = sc->cmdp->out_data[0];
447 if (issue_cx28975_cmd(sc, _DSL_POWER_BACK_OFF_RESULT, &t, 1))
449 ds.tpbo = sc->cmdp->out_data[0];
450 ds.rpbo = sc->cmdp->out_data[1];
452 if (!issue_cx28975_cmd(sc, _DSL_HDSL_PERF_ERR_CTRS, &t, 1)) {
454 for (i = 0; i < 10; ++i)
455 ((u_int8_t *) &ds.losw)[i] =
456 sc->cmdp->out_data[i];
460 ds.status_1 = ((volatile u_int8_t *)sc->cmdp)[0x3c0];
461 ds.status_3 = ((volatile u_int8_t *)sc->cmdp)[0x3c2];
463 bcopy(&sc->in_stats, ifr->ifr_data, sizeof(struct sbni16_stats));
464 bcopy(&ds, (char *)ifr->ifr_data + sizeof(struct sbni16_stats),
465 sizeof(struct dsl_stats));
469 if (!(error = suser_cred(cr, NULL_CRED_OKAY))) {
470 bzero(&sc->in_stats, sizeof(struct sbni16_stats));
472 if (issue_cx28975_cmd(sc, _DSL_CLEAR_ERROR_CTRS, &t, 1))
480 error = ether_ioctl(ifp, cmd, data);
484 if (ifp->if_flags & IFF_UP) {
485 if (!(ifp->if_flags & IFF_RUNNING)) {
486 if (sc->state == NOT_LOADED) {
487 if_printf(ifp, "firmware wasn't loaded\n");
493 if (ifp->if_flags & IFF_RUNNING) {
495 ifp->if_flags &= ~IFF_RUNNING;
516 sbsh_shutdown(device_t dev)
518 struct sbsh_softc *sc = device_get_softc(dev);
524 sbsh_suspend(device_t dev)
526 struct sbsh_softc *sc = device_get_softc(dev);
537 sbsh_resume(device_t dev)
539 struct sbsh_softc *sc = device_get_softc(dev);
544 ifp = &sc->arpcom.ac_if;
546 if (ifp->if_flags & IFF_UP)
555 sbsh_watchdog(struct ifnet *ifp)
557 struct sbsh_softc *sc = ifp->if_softc;
559 if_printf(ifp, "transmit timeout\n");
561 if (sc->regs->SR & TXS) {
563 if_printf(ifp, "interrupt posted but not delivered\n");
565 free_sent_buffers(sc);
568 /* -------------------------------------------------------------------------- */
573 struct sbsh_softc *sc = (struct sbsh_softc *)arg;
574 u_int8_t status = sc->regs->SR;
580 cx28975_interrupt(sc);
587 ++sc->in_stats.ufl_errs;
588 ++sc->arpcom.ac_if.if_oerrors;
594 alloc_rx_buffers(sc);
599 free_sent_buffers(sc);
603 ++sc->in_stats.crc_errs;
604 ++sc->arpcom.ac_if.if_ierrors;
609 ++sc->in_stats.ofl_errs;
610 ++sc->arpcom.ac_if.if_ierrors;
616 * Look for a first descriptor of a next packet, and write it's number
617 * into CTDR. Then enable the transmitter.
620 resume_tx(struct sbsh_softc *sc)
622 u_int32_t cur_tbd = sc->regs->CTDR;
624 while (cur_tbd != sc->regs->LTDR
625 && (sc->tbd[cur_tbd++].length & LAST_FRAG) == 0)
627 sc->regs->CTDR = cur_tbd;
628 sc->regs->CR |= TXEN;
632 start_xmit_frames(struct sbsh_softc *sc)
634 struct ifnet *ifp = &sc->arpcom.ac_if;
638 * Check if we have any free descriptor(s) and free space in
639 * our transmit queue.
641 while (sc->tail_xq != ((sc->head_xq - 1) & (XQLEN - 1))
642 && sc->regs->LTDR != ((sc->head_tdesc - 1) & 0x7f)) {
644 m = ifq_dequeue(&ifp->if_snd);
647 if (m->m_pkthdr.len) {
654 if (sc->regs->CTDR != sc->regs->LTDR)
655 ifp->if_flags |= IFF_OACTIVE;
657 ifp->if_flags &= ~IFF_OACTIVE;
662 * MUST be called at splimp
665 encap_frame(struct sbsh_softc *sc, struct mbuf *m_head)
672 for (m = m_head; !m->m_len; m = m->m_next)
675 cur_tbd = sc->regs->LTDR & 0x7f;
678 if (m->m_len < 5 || cur_tbd == ((sc->head_tdesc - 1) & 0x7f)) {
679 if ((m_head = repack(sc, m_head)) != NULL)
680 goto look_for_nonzero;
685 sc->tbd[cur_tbd].address = vtophys(mtod(m, vm_offset_t));
686 sc->tbd[cur_tbd].length = m->m_len;
690 } while (m && !m->m_len);
692 if (!m) { /* last fragment has been reached */
693 sc->tbd[cur_tbd].length |= LAST_FRAG;
701 sc->xq[sc->tail_xq++] = m_head;
702 sc->tail_xq &= (XQLEN - 1);
704 sc->regs->LTDR = cur_tbd;
705 ++sc->in_stats.sent_pkts;
706 ++sc->arpcom.ac_if.if_opackets;
710 repack(struct sbsh_softc *sc, struct mbuf *m)
714 MGETHDR(m_new, MB_DONTWAIT, MT_DATA);
716 if_printf (&sc->arpcom.ac_if,
717 "unable to get mbuf.\n");
721 if (m->m_pkthdr.len > MHLEN) {
722 MCLGET(m_new, MB_DONTWAIT);
723 if (!(m_new->m_flags & M_EXT)) {
725 if_printf (&sc->arpcom.ac_if,
726 "unable to get mbuf cluster.\n");
731 m_copydata(m, 0, m->m_pkthdr.len, mtod(m_new, caddr_t));
732 m_new->m_pkthdr.len = m_new->m_len = m->m_pkthdr.len;
738 free_sent_buffers(struct sbsh_softc *sc)
742 cur_tbd = sc->regs->CTDR;
744 while (sc->head_tdesc != cur_tbd) {
746 * Be careful! one element in xq may correspond to
747 * multiple descriptors.
749 if (sc->tbd[sc->head_tdesc].length & LAST_FRAG) {
750 m_freem(sc->xq[sc->head_xq++]);
751 sc->head_xq &= (XQLEN - 1);
754 sc->tbd[sc->head_tdesc].length = 0;
755 sc->head_tdesc = (sc->head_tdesc + 1) & 0x7f;
758 start_xmit_frames(sc);
762 * DON'T use free_sent_buffers to drop the queue!
765 alloc_rx_buffers(struct sbsh_softc *sc)
767 unsigned cur_rbd = sc->regs->LRDR & 0x7f;
770 while (sc->tail_rq != ((sc->head_rq - 1) & (RQLEN - 1))) {
771 MGETHDR(m, MB_DONTWAIT, MT_DATA);
773 if_printf (&sc->arpcom.ac_if,
774 "unable to get mbuf.\n");
778 if (SBNI16_MAX_FRAME > MHLEN) {
779 MCLGET(m, MB_DONTWAIT);
780 if (!(m->m_flags & M_EXT)) {
782 if_printf (&sc->arpcom.ac_if,
783 "unable to get mbuf cluster.\n");
786 m->m_pkthdr.len = m->m_len = MCLBYTES;
789 m_adj(m, 2); /* align ip on longword boundaries */
791 sc->rq[sc->tail_rq++] = m;
792 sc->tail_rq &= (RQLEN - 1);
794 sc->rbd[cur_rbd].address = vtophys(mtod(m, vm_offset_t));
795 sc->rbd[cur_rbd].length = 0;
796 sc->regs->LRDR = cur_rbd = (cur_rbd + 1) & 0x7f;
801 indicate_frames(struct sbsh_softc *sc)
803 struct ifnet *ifp = &sc->arpcom.ac_if;
804 unsigned cur_rbd = sc->regs->CRDR & 0x7f;
806 while (sc->head_rdesc != cur_rbd) {
807 struct mbuf *m = sc->rq[sc->head_rq++];
808 sc->head_rq &= (RQLEN - 1);
810 m->m_pkthdr.len = m->m_len =
811 sc->rbd[sc->head_rdesc].length & 0x7ff;
812 m->m_pkthdr.rcvif = ifp;
814 (*ifp->if_input)(ifp, m);
815 ++sc->in_stats.rcvd_pkts;
818 sc->head_rdesc = (sc->head_rdesc + 1) & 0x7f;
823 drop_queues(struct sbsh_softc *sc)
825 while (sc->head_rq != sc->tail_rq) {
826 m_freem(sc->rq[sc->head_rq++]);
827 sc->head_rq &= (RQLEN - 1);
830 while (sc->head_xq != sc->tail_xq) {
831 m_freem(sc->xq[sc->head_xq++]);
832 sc->head_xq &= (XQLEN - 1);
836 /* -------------------------------------------------------------------------- */
839 activate(struct sbsh_softc *sc)
843 sc->regs->SR = 0xff; /* clear it! */
844 sc->regs->CTDR = sc->regs->LTDR = sc->regs->CRDR = sc->regs->LRDR = 0;
846 sc->head_tdesc = sc->head_rdesc = 0;
847 alloc_rx_buffers(sc);
849 sc->regs->CRB &= ~RXDE;
850 sc->regs->IMR = EXT | RXS | TXS | CRC | OFL | UFL;
851 sc->regs->CR |= TXEN | RXEN;
854 ++sc->in_stats.attempts;
856 sc->in_stats.last_time = tv.tv_sec;
857 start_xmit_frames(sc);
861 deactivate(struct sbsh_softc *sc)
863 sc->regs->CR &= ~(RXEN | TXEN);
864 sc->regs->CRB |= RXDE;
866 sc->regs->CTDR = sc->regs->LTDR;
867 sc->regs->CRDR = sc->regs->LRDR;
868 sc->state = ACTIVATION;
873 /* -------------------------------------------------------------------------- */
876 cx28975_interrupt(struct sbsh_softc *sc)
878 volatile struct cx28975_cmdarea *p = sc->cmdp;
881 if (p->intr_host != 0xfe)
884 if (p->out_ack & 0x80) {
885 if (*((volatile u_int8_t *)p + 0x3c7) & 2) {
886 if (sc->state != ACTIVE
887 && (*((volatile u_int8_t *)p + 0x3c0) & 0xc0) == 0x40) {
889 if_printf(&sc->arpcom.ac_if, "connected to peer\n");
890 } else if (sc->state == ACTIVE
891 && (*((volatile u_int8_t *)p + 0x3c0) & 0xc0) != 0x40) {
893 if_printf(&sc->arpcom.ac_if, "carrier lost\n");
908 /* -------------------------------------------------------------------------- */
911 start_cx28975(struct sbsh_softc *sc, struct cx28975_cfg cfg)
913 static char thresh[] = { +8, -4, -16, -40 };
915 volatile struct cx28975_cmdarea *p = sc->cmdp;
916 u_int8_t t, parm[12];
928 sc->regs->CR |= CMOD;
930 sc->regs->CR |= FMOD;
932 sc->regs->CR |= PMOD;
934 sc->regs->CRB |= RODD | RXDE;
936 sc->regs->CRB |= RDBE;
938 sc->regs->CRB |= WTBE;
940 tsleep(sc, 0, "sbsh", 0);
941 if ((p->out_ack & 0x1f) != _ACK_BOOT_WAKE_UP)
944 if (download_firmware(sc, cfg.firmw_image, cfg.firmw_len))
947 tsleep(sc, 0, "sbsh", 0);
948 if ((p->out_ack & 0x1f) != _ACK_OPER_WAKE_UP)
951 t = cfg.master ? 1 : 9;
952 if (issue_cx28975_cmd(sc, _DSL_SYSTEM_ENABLE, &t, 1))
956 if (issue_cx28975_cmd(sc, _DSL_SYSTEM_CONFIG, &t, 1))
959 *(u_int16_t *)parm = cfg.lrate >> 3;
960 parm[2] = parm[3] = parm[0];
961 parm[5] = cfg.lrate & 7;
962 parm[4] = parm[7] = 1;
964 if (issue_cx28975_cmd(sc, _DSL_MULTI_RATE_CONFIG, parm, 8))
967 parm[0] = 0x02 | (cfg.mod << 4);
969 if (issue_cx28975_cmd(sc, _DSL_TRAINING_MODE, parm, 2))
973 parm[0] = 0x04; /* pre-activation: G.hs */
974 parm[4] = 0x04; /* no remote configuration */
975 parm[7] = 0x01; /* annex A (default) */
976 parm[8] = 0xff; /* i-bit mask (all bits) */
977 if (issue_cx28975_cmd(sc, _DSL_PREACTIVATION_CFG, parm, 12))
980 parm[0] = 0x03; /* dying gasp time - 3 frames */
981 parm[1] = thresh[cfg.mod];
982 parm[2] = 0xff; /* attenuation */
983 parm[3] = 0x04; /* line probe NMR (+2 dB) */
984 parm[4] = 0x00; /* reserved */
986 if (issue_cx28975_cmd(sc, _DSL_THRESHOLDS, parm, 6))
989 t = cfg.master ? 0x23 : 0x21;
990 if (issue_cx28975_cmd(sc, _DSL_FR_PCM_CONFIG, &t, 1))
994 if (issue_cx28975_cmd(sc, _DSL_INTR_HOST_MASK, &t, 1))
1002 download_firmware(struct sbsh_softc *sc, u_int8_t *img, u_int32_t img_len)
1008 for (i = 0; i < img_len; ++i)
1012 if (issue_cx28975_cmd(sc, _DSL_DOWNLOAD_START, (u_int8_t *) &t, 4))
1015 for (i = 0; img_len >= 75; i += 75, img_len -= 75) {
1016 if (issue_cx28975_cmd(sc, _DSL_DOWNLOAD_DATA, img + i, 75))
1021 && issue_cx28975_cmd(sc, _DSL_DOWNLOAD_DATA, img + i, img_len))
1024 t = (cksum ^ 0xff) + 1;
1025 if (issue_cx28975_cmd(sc, _DSL_DOWNLOAD_END, (u_int8_t *) &t, 1))
1032 issue_cx28975_cmd(struct sbsh_softc *sc, u_int8_t cmd,
1033 u_int8_t *data, u_int8_t size)
1035 volatile struct cx28975_cmdarea *p = sc->cmdp;
1036 u_int8_t *databuf = p->in_data;
1044 p->in_length = --size;
1045 p->in_csum = 0xf0 ^ cmd ^ size ^ 0xaa;
1047 for (i = 0; i <= size; ++i) {
1049 *databuf++ = *data++; /* only 1 byte per cycle! */
1052 p->in_datasum = cksum ^ 0xaa;
1053 p->out_ack = _ACK_NOT_COMPLETE;
1054 p->intr_8051 = 0xfe;
1056 if (tsleep(sc, 0, "sbsh", hz << 3))
1059 while (p->out_ack == _ACK_NOT_COMPLETE)
1062 if ((p->out_ack & 0x1f) == _ACK_PASS) {