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NetBSD/sys/dev/ic/daic.c

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/*
* Copyright (c) 1997,1999,2001 Martin Husemann <martin@duskware.de>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
*/
/*
* Last Edit-Date: [Fri Jan 5 12:31:50 2001]
*
* daic.c: MI driver for Diehl active ISDN cards (S, SX, SXn, SCOM, QUADRO)
*/
#include <sys/types.h>
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/errno.h>
#include <sys/ioctl.h>
#include <sys/device.h>
#include <sys/malloc.h>
#include <sys/proc.h>
#include <sys/socket.h>
#include <net/if.h>
#include <netisdn/i4b_ioctl.h>
#include <netisdn/i4b_l3l4.h>
#include <netisdn/i4b_isdnq931.h>
#include <netisdn/i4b_q931.h>
#include <netisdn/i4b_l3fsm.h>
#include <netisdn/i4b_l4.h>
#include <machine/bus.h>
#include <dev/ic/daicvar.h>
#include <dev/ic/daicreg.h>
#include <dev/microcode/daic/dnload.h>
#ifdef NetBSD1_3
#if NetBSD1_3 < 2
/* the device is MI, only the attach struct is in the bus
dependend frontend. And only on old versions... */
struct cfdriver daic_cd = {
NULL, "daic", DV_DULL
};
#endif
#endif
/* local function prototypes */
static char * cardtypename __P((int cardtype));
static int daic_download __P((int unit, int portcount, struct isdn_dr_prot *data));
static int daic_diagnostic __P((int unit, struct isdn_diagnostic_request *req));
static void daic_connect_request(unsigned int);
static void daic_connect_response(unsigned int, int, int);
static void daic_disconnect_request(unsigned int, int);
static int daic_reset __P((bus_space_tag_t bus, bus_space_handle_t io, int port, int quiet));
static int daic_handle_intr __P((struct daic *sc, int port));
static int daic_register_port(struct daic *sc, int port);
static void daic_request(struct daic *sc, int port, u_int req, u_int id, bus_size_t parmsize, const u_int8_t *parms);
static u_int daic_assign(struct daic *sc, int port, u_int instance, bus_size_t parmsize, const u_int8_t *parms);
static void daic_indicate_ind(struct daic *sc, int port);
static void daic_bch_config(int unit, int channel, int bprot, int updown);
static void daic_bch_tx_start(int unit, int channel);
static void daic_set_linktab(int unit, int channel, drvr_link_t *dlt);
static isdn_link_t *daic_ret_linktab(int unit, int channel);
#ifdef DAIC_DEBUG
static void daic_dump_request(struct daic *sc, int port, u_int req, u_int id, bus_size_t parmsize, u_int8_t *parms);
#endif
/* static data */
static char *cardnames[] = {
"S", "SX", "SCOM", "QUADRO"
};
static char *err_codes[DAIC_RC_ERRMASK+1] = {
"NO ERROR",
"UNKNOWN COMMAND",
"WRONG COMMAND",
"WRONG ID",
"WRONG CH",
"UNKNOWN IE",
"WRONG IE",
"OUT OF RESOURCES"
};
/* fixed parameters */
/* no parameters */
static u_int8_t parm_none[] = { 0 };
#define VOIDREQ(sc,port,req,id) daic_request(sc, port, req, id, sizeof parm_none, parm_none)
/* assign request for the global d-channel instance */
static u_int8_t parm_global_assign[] = {
/* BC len cap rate a-law */
0x04, 0x03, 0x80, 0x90, 0xa3, /* 64k speech */
0x04, 0x02, 0x88, 0x90, /* 64k data */
0x04, 0x03, 0x89, 0x90, 0xa3, /* restricted digital info */
0x04, 0x03, 0x90, 0x90, 0xa3, /* 3.1k speech */
/* shift6 SIN len service */
0x96, 0x01, 0x02, 0x00, 0x00, /* any service */
/* end of parms */
0x00
};
/*---------------------------------------------------------------------------*
* structure mapping one isdn port (a 'unit') to an sc/port pair
*---------------------------------------------------------------------------*/
struct daic_unit_map {
struct daic *sc;
int port;
};
static struct daic_unit_map *unit_map = NULL;
static int next_unit = 0;
/*---------------------------------------------------------------------------*
* Return the name of a card with given cardtype
*---------------------------------------------------------------------------*/
static char *
cardtypename(cardtype)
int cardtype;
{
if (cardtype >= 0 && cardtype < (sizeof(cardnames) / sizeof(cardnames[0])))
return cardnames[cardtype];
else
return "unknown type";
}
/*---------------------------------------------------------------------------*
* Probe for presence of device at given io space.
* Return: 0 no card identified
* 1 card found
*---------------------------------------------------------------------------*/
int
daic_probe(bus, io)
bus_space_tag_t bus;
bus_space_handle_t io;
{
return daic_reset(bus, io, 0, 1);
}
/*---------------------------------------------------------------------------*
* Attach and initialize the card at given io space.
*---------------------------------------------------------------------------*/
void
daic_attach(self, sc)
struct device *self;
struct daic *sc;
{
int i, num_ports;
num_ports = sc->sc_cardtype == DAIC_TYPE_QUAD ? 4 : 1;
/* init sc */
memset(sc->sc_assign_res, 0, sizeof sc->sc_assign_res);
memset(sc->sc_assign, 0, sizeof sc->sc_assign);
for (i = 0; i < num_ports; i++) {
sc->sc_state[i] = DAIC_STATE_COLD;
}
sc->sc_cardtype = -1;
/* init card */
sc->sc_cardtype = daic_reset(sc->sc_iot, sc->sc_ioh, 0, 0);
if (sc->sc_cardtype >= 0)
for (i = 0; i < num_ports; i++)
sc->sc_state[i] = DAIC_STATE_DOWNLOAD;
/* register all ports this card has */
for (i = 0; i < num_ports; i++)
daic_register_port(sc, i);
}
/*---------------------------------------------------------------------------*
* handle interrupts for one port of the card
*---------------------------------------------------------------------------*/
static int
daic_handle_intr(sc, port)
struct daic *sc;
int port;
{
struct outcallentry *assoc;
int off = port * DAIC_ISA_MEMSIZE;
u_int8_t rc, rcid;
u_int8_t ind, indid;
int chan;
/* check if we caused the interrupt */
if (!bus_space_read_1(sc->sc_iot, sc->sc_ioh, DAIC_IRQ+off))
return 0; /* nope, exit */
/* is the card in running state yet? */
if (sc->sc_state[port] == DAIC_STATE_TESTING) {
bus_space_write_1(sc->sc_iot, sc->sc_ioh, DAIC_COM_RC+off, 0);
sc->sc_state[port] = DAIC_STATE_RUNNING;
wakeup(&sc->sc_state[port]);
goto done;
}
/* what caused the interrupt? */
/* (1) Check for a return code */
rc = bus_space_read_1(sc->sc_iot, sc->sc_ioh, DAIC_COM_RC+off);
rcid = bus_space_read_1(sc->sc_iot, sc->sc_ioh, DAIC_COM_RCID+off);
if (!rc) goto check_ind;
/* maybe an assign answer (positive or negative) */
if (rc == DAIC_RC_ASSIGN_OK) {
sc->sc_assign_res[port] = rcid;
/* assing rc is special, we tell the card it's done */
bus_space_write_1(sc->sc_iot, sc->sc_ioh, DAIC_COM_REQ+off, 0);
bus_space_write_1(sc->sc_iot, sc->sc_ioh, DAIC_COM_RC+off, 0);
/* we handle some types of assigns to global dchannel id's automaticaly */
if (sc->sc_assign[port] & DAIC_ASSIGN_GLOBAL) {
sc->sc_global_dchan[port] = rcid;
sc->sc_assign[port] &= ~(DAIC_ASSIGN_GLOBAL|DAIC_ASSIGN_PENDING);
if (sc->sc_assign[port] & DAIC_ASSIGN_SLEEPING) {
sc->sc_assign[port] = 0;
wakeup(&sc->sc_assign_res[port]);
}
} else {
wakeup(&sc->sc_assign[port]);
}
goto check_ind;
} else if ((rc & DAIC_RC_ASSIGN_MASK) == DAIC_RC_ASSIGN_RC) {
printf("%s: assign request failed, error 0x%02x: %s\n",
sc->sc_dev.dv_xname, rc & DAIC_RC_ERRMASK,
err_codes[rc & DAIC_RC_ERRMASK]);
sc->sc_assign_res[port] = 0;
/* assing rc is special, we tell the card it's done */
bus_space_write_1(sc->sc_iot, sc->sc_ioh, DAIC_COM_REQ+off, 0);
bus_space_write_1(sc->sc_iot, sc->sc_ioh, DAIC_COM_RC+off, 0);
/* that's it */
wakeup(&sc->sc_assign[port]);
goto check_ind;
}
if (rcid == sc->sc_global_dchan[port]) {
sc->sc_request_res[port] = rc;
wakeup(&sc->sc_request_res[port]);
goto req_done;
}
for (chan = 0; chan < 2; chan++) {
if (rcid == sc->sc_con[port*2+chan].dchan_inst) {
sc->sc_con[port*2+chan].dchan_rc = rc;
wakeup(&sc->sc_con[port*2+chan].dchan_rc);
goto req_done;
} else if (rcid == sc->sc_con[port*2+chan].bchan_inst) {
sc->sc_con[port*2+chan].bchan_rc = rc;
wakeup(&sc->sc_con[port*2+chan].bchan_rc);
goto req_done;
}
}
for (assoc = sc->sc_outcalls[port].tqh_first; assoc; assoc = assoc->queue.tqe_next) {
if (rcid == assoc->dchan_id) {
assoc->rc = rc;
wakeup(assoc);
goto req_done;
}
}
/* not found? */
printf("%s: unknown id 0x%02x got rc 0x%02x: %s\n",
sc->sc_dev.dv_xname, rcid, rc,
err_codes[rc & DAIC_RC_ERRMASK]);
req_done:
bus_space_write_1(sc->sc_iot, sc->sc_ioh, DAIC_COM_RC+off, 0);
check_ind:
/* (2) Check for an indication */
ind = bus_space_read_1(sc->sc_iot, sc->sc_ioh, DAIC_COM_IND+off);
indid = bus_space_read_1(sc->sc_iot, sc->sc_ioh, DAIC_COM_INDID+off);
if (!ind) goto done;
/* incoming call routed to global dchannel task? */
if (indid == sc->sc_global_dchan[port]) {
if (ind == DAIC_IND_INDICATE) {
daic_indicate_ind(sc, port);
} else if (ind == DAIC_IND_INFO) {
int i;
printf("%s: got info indication\n",
sc->sc_dev.dv_xname);
for (i = 0; i < 48; i++) {
if (!(i % 16))
printf("\n%02x:", i);
printf(" %02x", bus_space_read_1(sc->sc_iot, sc->sc_ioh, DAIC_COM_RBUFFER+off+i));
}
printf("\n");
} else if (ind == DAIC_IND_HANGUP) {
printf("%s: got global HANGUP indication\n",
sc->sc_dev.dv_xname);
} else {
printf("%s: unknown global indication: 0x%02x\n",
sc->sc_dev.dv_xname, ind);
}
goto ind_done;
}
for (chan = 0; chan < 2; chan++) {
if (indid == sc->sc_con[port*2+chan].dchan_inst) {
printf("%s: D-Channel indication 0x%02x for channel %d\n",
sc->sc_dev.dv_xname, ind, chan);
goto ind_done;
} else if (indid == sc->sc_con[port*2+chan].bchan_inst) {
printf("%s: B-Channel indication 0x%02x for channel %d\n",
sc->sc_dev.dv_xname, ind, chan);
goto ind_done;
}
}
for (assoc = sc->sc_outcalls[port].tqh_first; assoc; assoc = assoc->queue.tqe_next) {
if (indid == assoc->dchan_id) {
printf("%s: D-Channel indication 0x%02x for outgoing call with cdid %d\n",
sc->sc_dev.dv_xname, ind, assoc->cdid);
goto ind_done;
}
}
/* not found - something's wrong! */
printf("%s: got ind 0x%02x for id 0x%02x\n", sc->sc_dev.dv_xname, ind, indid);
ind_done:
bus_space_write_1(sc->sc_iot, sc->sc_ioh, DAIC_COM_IND+off, 0);
done:
/* tell card we're ready for more... */
bus_space_write_1(sc->sc_iot, sc->sc_ioh, DAIC_IRQ+off, 0);
return 1;
}
/*---------------------------------------------------------------------------*
* Handle interrupts
*---------------------------------------------------------------------------*/
int
daic_intr(sc)
struct daic *sc;
{
int handeld = 0;
if (sc->sc_cardtype == DAIC_TYPE_QUAD) {
int i;
for (i = 0; i < 4; i++)
handeld |= daic_handle_intr(sc, i);
} else
handeld = daic_handle_intr(sc, 0);
return handeld;
}
/*---------------------------------------------------------------------------*
* Download primary protocol microcode to on-board processor
*---------------------------------------------------------------------------*/
static int
daic_download(unit, count, data)
int unit, count;
struct isdn_dr_prot *data;
{
struct daic *sc = unit_map[unit].sc;
int i;
if (sc->sc_cardtype != DAIC_TYPE_QUAD)
count = 1; /* XXX - or signal error ? */
for (i = 0; i < count; i++) {
int off = DAIC_ISA_MEMSIZE * i;
u_int8_t *p = data[i].microcode;
size_t s = data[i].bytecount;
u_int32_t sw_id;
int cnt, x;
for (p = data[i].microcode+4, cnt = 0; *p && cnt < 70; p++, cnt++)
;
sw_id = p[1] | (p[2] << 8) | (p[3] << 16) | (p[4] << 24);
if (sc->sc_cardtype == DAIC_TYPE_QUAD)
printf("%s port %d: downloading %s\n",
sc->sc_dev.dv_xname, i, data[i].microcode+4);
else
printf("%s: downloading %s\n",
sc->sc_dev.dv_xname, data[i].microcode+4);
x = splnet();
p = data[i].microcode;
while (s > 0) {
size_t size = (s > 256) ? 256 : s;
bus_space_write_region_1(sc->sc_iot, sc->sc_ioh, DAIC_BOOT_BUF+off, p, size);
p += size;
s -= size;
bus_space_write_1(sc->sc_iot, sc->sc_ioh, DAIC_BOOT_CTRL+off, 1);
splx(x);
for (cnt = 0; cnt < 2*hz; cnt++) {
x = splnet();
if (bus_space_read_1(sc->sc_iot, sc->sc_ioh, DAIC_BOOT_CTRL+off) == 0)
break;
splx(x);
tsleep(sc, 0, "daic download", 1);
}
if (bus_space_read_1(sc->sc_iot, sc->sc_ioh, DAIC_BOOT_CTRL+off) != 0) {
splx(x);
printf("%s: download of microcode failed\n",
sc->sc_dev.dv_xname);
return EIO;
}
}
/* configure microcode - no parameters yet - XXX */
bus_space_write_1(sc->sc_iot, sc->sc_ioh, DAIC_BOOT_TEI+off, 0);
bus_space_write_1(sc->sc_iot, sc->sc_ioh, DAIC_BOOT_NT2+off, 0);
bus_space_write_1(sc->sc_iot, sc->sc_ioh, DAIC_BOOT_ZERO+off, 0);
bus_space_write_1(sc->sc_iot, sc->sc_ioh, DAIC_BOOT_WATCHDOG+off, 0);
bus_space_write_1(sc->sc_iot, sc->sc_ioh, DAIC_BOOT_PERMANENT+off, 0);
bus_space_write_1(sc->sc_iot, sc->sc_ioh, DAIC_BOOT_XINTERFACE+off, 0);
/* start protocol */
bus_space_write_1(sc->sc_iot, sc->sc_ioh, DAIC_BOOT_CTRL+off, 2);
/* wait for signature */
for (cnt = 0; cnt < 2*hz; cnt++) {
u_int16_t signature;
signature = bus_space_read_2(sc->sc_iot, sc->sc_ioh, DAIC_BOOT_SIGNATURE+off);
if (signature == DAIC_SIGNATURE_VALUE)
break;
if (signature) {
if (signature != DAIC_SIGNATURE_VALUE) {
splx(x);
printf("%s: microcode signature bad: should be %04x, is %04x\n",
sc->sc_dev.dv_xname, DAIC_SIGNATURE_VALUE,signature);
return EIO;
}
break;
}
splx(x);
tsleep(&sc->sc_state[i], 0, "daic protocol init", hz/25);
x = splnet();
}
/* real check: send an invalid request and wait for an interrupt */
sc->sc_state[i] = DAIC_STATE_TESTING;
bus_space_write_1(sc->sc_iot, sc->sc_ioh, DAIC_COM_RC+off, 0);
bus_space_write_1(sc->sc_iot, sc->sc_ioh, DAIC_COM_REQID+off, 0xff);
bus_space_write_1(sc->sc_iot, sc->sc_ioh, DAIC_COM_REQ+off, 1);
splx(x);
tsleep(&sc->sc_state[i], 0, "daic irq test", 2*hz);
x = splnet();
if (sc->sc_state[i] != DAIC_STATE_RUNNING) {
splx(x);
printf("%s: download interrupt test timeout\n",
sc->sc_dev.dv_xname);
return EIO;
}
/* finish card configuration */
bus_space_write_4(sc->sc_iot, sc->sc_ioh, DAIC_SWID+off, sw_id);
bus_space_write_1(sc->sc_iot, sc->sc_ioh, DAIC_SET_CARD+off, sc->sc_cardtype);
splx(x);
/* assign global d-channel id for that port */
sc->sc_global_dchan[i] =
daic_assign(sc, i, DAIC_GLOBALID_DCHAN,
sizeof parm_global_assign, parm_global_assign);
/* send an INDICATE request to get incoming calls on this id */
x = splnet();
VOIDREQ(sc, i, DAIC_REQ_INDICATE, sc->sc_global_dchan[i]);
splx(x);
tsleep(&sc->sc_request_res[i], 0, "daic request", 0);
x = splnet();
if (sc->sc_request_res[i] != DAIC_RC_OK) {
printf("%s: INDICATE request error (0x%02x): %s\n",
sc->sc_dev.dv_xname, sc->sc_request_res[i],
err_codes[sc->sc_request_res[i] & DAIC_RC_ERRMASK]);
splx(x);
return EIO;
}
splx(x);
}
return 0;
}
/*---------------------------------------------------------------------------*
* Reset the card, download primary bootstrap, let it check the
* card and return the cardtype identified by the microcode
* or -1 if no known card is detected.
*---------------------------------------------------------------------------*/
static int
daic_reset(bus, io, port, quiet)
bus_space_tag_t bus;
bus_space_handle_t io;
int port, quiet;
{
int memsize = 0, cardtype = -1;
int i, off = port * DAIC_ISA_MEMSIZE;
/* clear any pending interrupt */
bus_space_read_1(bus, io, DAIC_IRQ+off);
/* reset card */
bus_space_write_1(bus, io, DAIC_BOOT_SET_RESET+off, 0);
/* download primary bootstrap */
bus_space_set_region_1(bus, io, DAIC_BOOT_START+off, 0, DAIC_BOOT_CODE-DAIC_BOOT_START);
bus_space_write_region_1(bus, io, DAIC_BOOT_CODE+off, dnload, DAIC_BOOT_END-DAIC_BOOT_CODE+1);
if (bus_space_read_1(bus, io, DAIC_BOOT_CTRL+off)
|| bus_space_read_1(bus, io, DAIC_BOOT_EBIT+off)) {
if (!quiet) printf(": shared memory test failed!\n");
return -1;
}
/* let card perform memory test */
bus_space_write_1(bus, io, DAIC_BOOT_CTRL+off, DAIC_TEST_MEM);
/* and off we go... */
bus_space_write_1(bus, io, DAIC_BOOT_CLR_RESET+off, 0);
/* wait for response from bootstrap */
for (i = 0; i < 15000 && bus_space_read_1(bus, io, DAIC_BOOT_CTRL+off) != DAIC_TEST_RDY; i++)
DELAY(100);
if (i >= 15000) {
if (!quiet) printf(": on board processor test failed!\n");
return -1;
}
if (bus_space_read_1(bus, io, DAIC_BOOT_EBIT+off)) {
if (!quiet) printf(": on board memory test failed at %p\n",
(void*)bus_space_read_2(bus, io, DAIC_BOOT_ELOC+off));
return -1;
}
/* fetch info from primary bootstrap code */
cardtype = bus_space_read_1(bus, io, DAIC_BOOT_CARD+off);
memsize = bus_space_read_1(bus, io, DAIC_BOOT_MSIZE+off);
/* done, output info */
if (!quiet) printf(": EICON.Diehl-%s (%d kB RAM)\n", cardtypename(cardtype), memsize << 4);
return cardtype;
}
/*---------------------------------------------------------------------------*
* Generic diagnostic interface - pass through the microcode data
* without knowing too much about it. This passes a lot work to
* userland, but hey, this is only a diagnostic tool...
*---------------------------------------------------------------------------*/
static int
daic_diagnostic(unit, req)
int unit;
struct isdn_diagnostic_request *req;
{
struct daic *sc = unit_map[unit].sc;
int port = unit_map[unit].port;
int off = port * DAIC_ISA_MEMSIZE;
int rc, cnt;
int s, err = 0;
/* validate parameters */
if (req->cmd < 0 || req->cmd > DAIC_DIAG_MAXCMD) {
printf("%s: daic_diagnostic: illegal cmd %d\n",
sc->sc_dev.dv_xname, req->cmd);
return EIO;
}
if (req->out_param_len > (DAIC_DIAG_DATA_SIZE+1)) {
printf("%s: daic_diagnostic: illegal out_param_len %d\n",
sc->sc_dev.dv_xname, req->out_param_len);
return EIO;
}
/* XXX - only for debug */
if (req->cmd == 0x05) {
/* pass through request from userland */
u_int8_t id;
static u_int8_t parms[] = {
IEI_CALLID, 0x01, 0x81,
IEI_CALLINGPN, 7, NUMBER_TYPEPLAN, '9', '8', '9', '0', '2', '0',
0x96, 0x01, 0x02, 0x01, 0x00,
0x00
};
/* create the d-channel task for this call */
printf("%s: assigning id for pass-through call\n", sc->sc_dev.dv_xname);
id = daic_assign(sc, port, DAIC_GLOBALID_DCHAN, sizeof(parms), parms);
printf("%s: got id 0x%02x\n", sc->sc_dev.dv_xname, id);
#ifdef DAIC_DEBUG
daic_dump_request(sc, port, DAIC_REQ_CALL, id, req->in_param_len, req->in_param);
#endif
daic_request(sc, port, DAIC_REQ_CALL, id, req->in_param_len, req->in_param);
return 0;
}
/* all these need an output parameter */
if (req->out_param == NULL)
return EIO;
/* check state and switch to DIAGNOSTIC */
s = splnet();
if (sc->sc_state[port] != DAIC_STATE_RUNNING) {
splx(s);
return EWOULDBLOCK;
}
sc->sc_state[port] = DAIC_STATE_DIAGNOSTIC;
splx(s);
/* set new request */
bus_space_write_1(sc->sc_iot, sc->sc_ioh, DAIC_DIAG_REQ+off, req->cmd);
/* sorry, no interrupt on completition - have to poll */
for (cnt = 0; cnt < 3*hz; cnt++) {
if (bus_space_read_1(sc->sc_iot, sc->sc_ioh, DAIC_DIAG_REQ+off) == 0
&& bus_space_read_1(sc->sc_iot, sc->sc_ioh, DAIC_DIAG_RC+off) != 0)
break;
tsleep(sc, 0, "daic diagnostic", 1);
}
rc = bus_space_read_1(sc->sc_iot, sc->sc_ioh, DAIC_DIAG_RC+off);
if (rc == 0) {
/* stop request and return error */
bus_space_write_1(sc->sc_iot, sc->sc_ioh, DAIC_DIAG_REQ+off, 0);
bus_space_write_1(sc->sc_iot, sc->sc_ioh, DAIC_DIAG_RC+off, 0);
err = EIO;
goto done;
}
/* out param gets rc and all the data */
if (req->out_param_len >= 2) {
((u_int8_t*)(req->out_param))[0] = (u_int8_t)rc;
bus_space_read_region_1(sc->sc_iot, sc->sc_ioh, DAIC_DIAG_DATA+off, ((u_int8_t*)req->out_param)+1, req->out_param_len-1);
}
/* acknowledge data */
bus_space_write_1(sc->sc_iot, sc->sc_ioh, DAIC_DIAG_RC+off, 0);
done: /* back to normal state */
s = splnet();
sc->sc_state[port] = DAIC_STATE_RUNNING;
splx(s);
return err;
}
/*---------------------------------------------------------------------------*
* Register one port and attach it to the upper layers
*---------------------------------------------------------------------------*/
static int
daic_register_port(struct daic *sc, int port)
{
int chan;
int unit = next_unit++;
/* make sure this hardware driver type is known to layer 4 */
ctrl_types[CTRL_DAIC].set_linktab = daic_set_linktab;
ctrl_types[CTRL_DAIC].get_linktab = daic_ret_linktab;
/* attach a new unit */
if (unit_map) {
struct daic_unit_map *temp = malloc(next_unit*sizeof(struct daic_unit_map), 0, M_DEVBUF);
memcpy(temp, unit_map, unit*sizeof(struct daic_unit_map));
free(unit_map, M_DEVBUF);
unit_map = temp;
} else {
unit_map = malloc(sizeof(struct daic_unit_map), 0, M_DEVBUF);
next_unit = 0;
}
next_unit++;
unit_map[unit].sc = sc;
unit_map[unit].port = port;
/* setup function pointers */
ctrl_desc[nctrl].N_CONNECT_REQUEST = daic_connect_request;
ctrl_desc[nctrl].N_CONNECT_RESPONSE = daic_connect_response;
ctrl_desc[nctrl].N_DISCONNECT_REQUEST = daic_disconnect_request;
ctrl_desc[nctrl].N_DOWNLOAD = daic_download;
ctrl_desc[nctrl].N_DIAGNOSTICS = daic_diagnostic;
/* init type and unit */
ctrl_desc[nctrl].unit = unit;
ctrl_desc[nctrl].ctrl_type = CTRL_DAIC;
ctrl_desc[nctrl].card_type = sc->sc_cardtype + 1;
/* state fields */
ctrl_desc[nctrl].dl_est = DL_DOWN;
ctrl_desc[nctrl].bch_state[0] = BCH_ST_FREE;
ctrl_desc[nctrl].bch_state[1] = BCH_ST_FREE;
sc->sc_ctrl[port] = nctrl++;
/* initialize linktabs for this port */
for (chan = 0; chan < 2; chan++) {
isdn_link_t *lt = &sc->sc_con[port*2+chan].isdn_linktab;
lt->unit = unit;
lt->channel = chan;
lt->bch_config = daic_bch_config;
lt->bch_tx_start = daic_bch_tx_start;
lt->tx_queue = &sc->sc_con[port*2+chan].tx_queue;
lt->rx_queue = &sc->sc_con[port*2+chan].rx_queue;
}
TAILQ_INIT(&sc->sc_outcalls[port]);
return unit;
}
/*---------------------------------------------------------------------------*
* return the address of daic drivers linktab
*---------------------------------------------------------------------------*/
static isdn_link_t *
daic_ret_linktab(int unit, int channel)
{
struct daic *sc = unit_map[unit].sc;
int port = unit_map[unit].port;
struct daic_connection *con = &sc->sc_con[port*2+channel];
return(&con->isdn_linktab);
}
/*---------------------------------------------------------------------------*
* set the driver linktab in the b channel softc
*---------------------------------------------------------------------------*/
static void
daic_set_linktab(int unit, int channel, drvr_link_t *dlt)
{
struct daic *sc = unit_map[unit].sc;
int port = unit_map[unit].port;
struct daic_connection *con = &sc->sc_con[port*2+channel];
con->drvr_linktab = dlt;
}
/*---------------------------------------------------------------------------*
* Send a request to the card.
*---------------------------------------------------------------------------*/
static void
daic_request(
struct daic *sc, /* ourself */
int port, /* and the port on this card */
u_int req, /* the request to send */
u_int id, /* id of communication task */
bus_size_t parmsize, /* size of parms including the terminating zero */
const u_int8_t *parms) /* pointer to parms to pass */
{
int off = port*DAIC_ISA_MEMSIZE;
/* spin while card is yet busy */
while (bus_space_read_1(sc->sc_iot, sc->sc_ioh, DAIC_COM_REQ))
; /* unlikely to happen with this driver */
/* output parameters */
bus_space_write_region_1(sc->sc_iot, sc->sc_ioh, DAIC_COM_XBUFFER+off, parms, parmsize);
/* output request and id */
bus_space_write_1(sc->sc_iot, sc->sc_ioh, DAIC_COM_REQID+off, id);
bus_space_write_1(sc->sc_iot, sc->sc_ioh, DAIC_COM_REQ+off, req);
}
/*---------------------------------------------------------------------------*
* Assign a unique instance id for some communication class
* on the card. Only one assign request may be running on a
* port at any time, handle this and return the instance id.
*---------------------------------------------------------------------------*/
static u_int
daic_assign(
struct daic *sc, /* our state and port no */
int port,
u_int classid, /* Diehl calls this "global instance id" */
bus_size_t parmsize, /* sizeof paramter arra */
const u_int8_t *parms) /* task instance parameters */
{
static char wchan[] = "daic assign";
u_int8_t id;
int x;
/* there only may be one assignment running concurrently */
x = splnet();
for (;;) {
if (!(sc->sc_assign[port] & DAIC_ASSIGN_PENDING))
break; /* we got it! */
/* somebody else is assigning, record state and sleep */
sc->sc_assign[port] |= DAIC_ASSIGN_SLEEPING;
tsleep(&sc->sc_assign_res[port], 0, wchan, 0);
}
/* put parameters and request to card */
sc->sc_assign[port] |= DAIC_ASSIGN_PENDING;
daic_request(sc, port, DAIC_REQ_ASSIGN, classid, parmsize, parms);
/* wait for completition of assignment by the card */
tsleep(&sc->sc_assign[port], 0, wchan, 0);
id = sc->sc_assign_res[port];
/* have we lost our global dchannel id in the meantime? */
if (sc->sc_assign[port] & DAIC_ASSIGN_NOGLOBAL) {
/* start an assign request and let the result
be handled by the interrupt handler - we don't
have to wait for it here. As the assign lock
isn't freed, we don't wake up others... */
sc->sc_assign[port] &= ~DAIC_ASSIGN_NOGLOBAL;
sc->sc_assign[port] |= DAIC_ASSIGN_PENDING|DAIC_ASSIGN_GLOBAL;
daic_request(sc, port, DAIC_REQ_ASSIGN, DAIC_GLOBALID_DCHAN,
sizeof parm_global_assign, parm_global_assign);
splx(x);
return id;
}
/* XXX - review this, can't remember why I did it this complicated */
/* unlock and wakup others, if any */
if (sc->sc_assign[port] & DAIC_ASSIGN_SLEEPING) {
sc->sc_assign[port] = 0;
wakeup(&sc->sc_assign_res[port]);
} else
sc->sc_assign[port] = 0;
splx(x);
return id;
}
#ifdef DAIC_DEBUG
/*---------------------------------------------------------------------------*
* Debug output of request parameters
*---------------------------------------------------------------------------*/
static void
daic_dump_request(struct daic *sc, int port, u_int req, u_int id, bus_size_t parmsize, u_int8_t *parms)
{
int i;
printf("%s: request 0x%02x to task id 0x%02x:",
sc->sc_dev.dv_xname, req, id);
for (i = 0; i < parmsize; i++) {
if (i % 16 == 0)
printf("\n%02x:", i);
printf(" %02x", parms[i]);
}
printf("\n");
}
#endif
/*---------------------------------------------------------------------------*
* Decode parameters of an INDICATE indication from the card
* and pass them to layer 4. Called from within an interrupt
* context.
*---------------------------------------------------------------------------*/
static void
daic_indicate_ind(struct daic *sc, int port)
{
int offset = port*DAIC_ISA_MEMSIZE;
int i;
u_int8_t ie, ielen;
call_desc_t *cd;
/* get and init new calldescriptor */
cd = reserve_cd(); /* cdid filled in */
cd->controller = sc->sc_ctrl[port];
cd->bprot = BPROT_NONE;
cd->cause_in = 0;
cd->cause_out = 0;
cd->dst_telno[0] = '\0';
cd->src_telno[0] = '\0';
cd->channelid = CHAN_NO;
cd->channelexcl = 0;
cd->cr = -1;
cd->crflag = CRF_DEST;
cd->ilt = NULL; /* reset link tab ptrs */
cd->dlt = NULL;
i = 0;
for (;;) {
ie = bus_space_read_1(sc->sc_iot, sc->sc_ioh, DAIC_COM_RBUFFER+offset+i);
if (!ie) break;
i++;
if (ie & 0x80) continue;
ielen = bus_space_read_1(sc->sc_iot, sc->sc_ioh, DAIC_COM_RBUFFER+offset+i);
i++;
switch (ie) {
case IEI_BEARERCAP:
ie = bus_space_read_1(sc->sc_iot, sc->sc_ioh, DAIC_COM_RBUFFER+offset+i);
if (ie == 0x80 || ie == 0x89 || ie == 0x90)
cd->bprot = BPROT_NONE;
else if (ie == 0x88)
cd->bprot = BPROT_RHDLC;
break;
case IEI_CALLINGPN:
{
int off;
ie = bus_space_read_1(sc->sc_iot, sc->sc_ioh, DAIC_COM_RBUFFER+offset+i);
if (ie & 0x80)
off = 1;
else
off = 2;
bus_space_read_region_1(sc->sc_iot, sc->sc_ioh,
DAIC_COM_RBUFFER+offset+i+off, cd->src_telno,
ielen - off);
cd->src_telno[ielen-off+1] = '\0';
}
break;
case IEI_CALLEDPN:
bus_space_read_region_1(sc->sc_iot, sc->sc_ioh,
DAIC_COM_RBUFFER+offset+i+1,
cd->dst_telno, ielen-1);
cd->dst_telno[ielen] = '\0';
break;
case IEI_CHANNELID:
ie = bus_space_read_1(sc->sc_iot, sc->sc_ioh, DAIC_COM_RBUFFER+offset+i);
if ((ie & 0xf4) != 0x80)
cd->channelid = CHAN_NO;
else {
switch(ie & 0x03) {
case IE_CHAN_ID_NO: cd->channelid = CHAN_NO; break;
case IE_CHAN_ID_B1: cd->channelid = CHAN_B1; break;
case IE_CHAN_ID_B2: cd->channelid = CHAN_B2; break;
case IE_CHAN_ID_ANY: cd->channelid = CHAN_ANY; break;
}
cd->channelexcl = (ie & 0x08) >> 3;
}
}
i += ielen;
}
cd->event = EV_SETUP;
ctrl_desc[cd->controller].bch_state[cd->channelid] = BCH_ST_RSVD;
/* record the dchannel id for this call and the call descriptor */
sc->sc_con[port*2+cd->channelid].dchan_inst = sc->sc_global_dchan[port];
sc->sc_con[port*2+cd->channelid].cdid = cd->cdid;
/* this task is busy now, we need a new global dchan id */
if (sc->sc_assign[port] & DAIC_ASSIGN_PENDING) {
/* argh - can't assign right now */
sc->sc_assign[port] |= DAIC_ASSIGN_NOGLOBAL;
} else {
/* yeah - can request the assign right away, but let the
interrupt handler autohandle the result */
sc->sc_assign[port] |= DAIC_ASSIGN_PENDING|DAIC_ASSIGN_GLOBAL;
daic_request(sc, port, DAIC_REQ_ASSIGN, DAIC_GLOBALID_DCHAN,
sizeof parm_global_assign, parm_global_assign);
}
if (cd->bprot == BPROT_NONE)
printf("\nincoming voice call from \"%s\" to \"%s\"\n",
cd->src_telno, cd->dst_telno);
else
printf("\nincoming data call from \"%s\" to \"%s\"\n",
cd->src_telno, cd->dst_telno);
/* hand up call to layer 4 */
i4b_l4_connect_ind(cd);
}
/*---------------------------------------------------------------------------*
* Layer 4 request a call setup
*---------------------------------------------------------------------------*/
static void
daic_connect_request(unsigned int cdid)
{
u_int8_t id, cpn[TELNO_MAX+4], parms[TELNO_MAX+16], *p;
call_desc_t *cd = cd_by_cdid(cdid);
struct daic *sc = unit_map[cd->driver_unit].sc;
int port = unit_map[cd->driver_unit].port;
int x, len;
struct outcallentry *assoc;
/* to associate the cdid with the communication task
we are going to create for this outgoing call,
we maintain a queue of pending outgoing calls.
As soon as a SETUP response is received, we move
the association to the allocated b-channel. */
/* configure d-channel task parameters */
p = parms;
*p++ = IEI_CALLID; *p++ = 0x01;
if (cd->bprot == BPROT_NONE) {
*p++ = 0x82;
} else if (cd->bprot == BPROT_RHDLC) {
*p++ = 0x85;
} else {
printf("%s: daic_connect_request for unknown bchan protocol 0x%x\n",
sc->sc_dev.dv_xname, cd->bprot);
return;
}
if (cd->src_telno[0]) {
*p++ = IEI_CALLINGPN;
*p++ = strlen(cd->src_telno)+1;
*p++ = NUMBER_TYPEPLAN;
strcpy(p, cd->src_telno);
p += strlen(p);
}
if (cd->channelid == CHAN_B1 || cd->channelid == CHAN_B2) {
*p++ = IEI_CHANNELID;
*p++ = 0x01;
*p++ = 0x81 + cd->channelid;
}
if (cd->bprot == BPROT_NONE) {
*p++ = 0x96; /* shift6 */
*p++ = 0x01; /* SIN */
*p++ = 0x02; /* len */
*p++ = 0x01; /* Telephony */
*p++ = 0x00; /* add.info */
}
*p++ = 0;
/* create the d-channel task for this call */
id = daic_assign(sc, port, DAIC_GLOBALID_DCHAN, p - parms, parms);
/* map it to the call descriptor id */
assoc = malloc(sizeof(struct outcallentry), 0, M_DEVBUF);
assoc->cdid = cdid;
assoc->dchan_id = id;
x = splnet();
TAILQ_INSERT_TAIL(&sc->sc_outcalls[port], assoc, queue);
/* send a call request */
len = strlen(cd->dst_telno);
cpn[0] = IEI_CALLEDPN;
cpn[1] = len+1;
cpn[2] = NUMBER_TYPEPLAN;
strcpy(cpn+3, cd->dst_telno);
#ifdef DAIC_DEBUG
daic_dump_request(sc, port, DAIC_REQ_CALL, id, len+4, cpn);
#endif
daic_request(sc, port, DAIC_REQ_CALL, id, len+4, cpn);
splx(x);
tsleep(assoc, 0, "daic call", 0);
if (assoc->rc != DAIC_RC_OK) {
printf("%s: call request failed, error 0x%02x: %s\n",
sc->sc_dev.dv_xname, assoc->rc & DAIC_RC_ERRMASK,
err_codes[assoc->rc & DAIC_RC_ERRMASK]);
}
}
/*---------------------------------------------------------------------------*
* TODO:
*---------------------------------------------------------------------------*/
static void daic_connect_response(unsigned int cdid, int response, int cause)
{
}
/*---------------------------------------------------------------------------*
* TODO:
*---------------------------------------------------------------------------*/
static void daic_disconnect_request(unsigned int cdid, int cause)
{
}
/*---------------------------------------------------------------------------*
* TODO:
*---------------------------------------------------------------------------*/
static void daic_bch_config(int unit, int channel, int bprot, int updown)
{
printf("daic: bch_config\n");
}
/*---------------------------------------------------------------------------*
* TODO:
*---------------------------------------------------------------------------*/
static void daic_bch_tx_start(int unit, int channel)
{
printf("daic: bch_tx_start\n");
}
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