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freebsd-dev/sys/netgraph/bluetooth/drivers/bt3c/ng_bt3c_pccard.c
Maksim Yevmenkin a4cb050617 Fix comment
2005-09-22 19:15:33 +00:00

1239 lines
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/*
* ng_bt3c_pccard.c
*/
/*-
* Copyright (c) 2001-2002 Maksim Yevmenkin <m_evmenkin@yahoo.com>
* 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. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``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 OR CONTRIBUTORS 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.
*
* $Id: ng_bt3c_pccard.c,v 1.5 2003/04/01 18:15:21 max Exp $
* $FreeBSD$
*
* XXX XXX XX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX
*
* Based on information obrained from: Jose Orlando Pereira <jop@di.uminho.pt>
* and disassembled w2k driver.
*
* XXX XXX XX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX
*
*/
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/bus.h>
#include <machine/bus.h>
#include <sys/conf.h>
#include <sys/endian.h>
#include <sys/interrupt.h>
#include <sys/kernel.h>
#include <sys/mbuf.h>
#include <sys/module.h>
#include <machine/resource.h>
#include <sys/rman.h>
#include <sys/socket.h>
#include <net/if.h>
#include <net/if_var.h>
#include <dev/pccard/pccardreg.h>
#include <dev/pccard/pccardvar.h>
#include "pccarddevs.h"
#include <netgraph/ng_message.h>
#include <netgraph/netgraph.h>
#include <netgraph/ng_parse.h>
#include <netgraph/bluetooth/include/ng_bluetooth.h>
#include <netgraph/bluetooth/include/ng_hci.h>
#include <netgraph/bluetooth/include/ng_bt3c.h>
#include <netgraph/bluetooth/drivers/bt3c/ng_bt3c_var.h>
/* Netgraph methods */
static ng_constructor_t ng_bt3c_constructor;
static ng_shutdown_t ng_bt3c_shutdown;
static ng_newhook_t ng_bt3c_newhook;
static ng_connect_t ng_bt3c_connect;
static ng_disconnect_t ng_bt3c_disconnect;
static ng_rcvmsg_t ng_bt3c_rcvmsg;
static ng_rcvdata_t ng_bt3c_rcvdata;
/* PCMCIA driver methods */
static int bt3c_pccard_probe (device_t);
static int bt3c_pccard_attach (device_t);
static int bt3c_pccard_detach (device_t);
static void bt3c_intr (void *);
static void bt3c_receive (bt3c_softc_p);
static void bt3c_swi_intr (void *);
static void bt3c_forward (node_p, hook_p, void *, int);
static void bt3c_send (node_p, hook_p, void *, int);
static void bt3c_download_firmware (bt3c_softc_p, char const *, int);
#define bt3c_set_address(sc, address) \
do { \
outb(rman_get_start((sc)->iobase) + BT3C_ADDR_L, ((address) & 0xff)); \
outb(rman_get_start((sc)->iobase) + BT3C_ADDR_H, (((address) >> 8) & 0xff)); \
} while (0)
#define bt3c_read_data(sc, data) \
do { \
(data) = inb(rman_get_start((sc)->iobase) + BT3C_DATA_L); \
(data) |= ((inb(rman_get_start((sc)->iobase) + BT3C_DATA_H) & 0xff) << 8); \
} while (0)
#define bt3c_write_data(sc, data) \
do { \
outb(rman_get_start((sc)->iobase) + BT3C_DATA_L, ((data) & 0xff)); \
outb(rman_get_start((sc)->iobase) + BT3C_DATA_H, (((data) >> 8) & 0xff)); \
} while (0)
#define bt3c_read_control(sc, data) \
do { \
(data) = inb(rman_get_start((sc)->iobase) + BT3C_CONTROL); \
} while (0)
#define bt3c_write_control(sc, data) \
do { \
outb(rman_get_start((sc)->iobase) + BT3C_CONTROL, (data)); \
} while (0)
#define bt3c_read(sc, address, data) \
do { \
bt3c_set_address((sc), (address)); \
bt3c_read_data((sc), (data)); \
} while(0)
#define bt3c_write(sc, address, data) \
do { \
bt3c_set_address((sc), (address)); \
bt3c_write_data((sc), (data)); \
} while(0)
static MALLOC_DEFINE(M_BT3C, "bt3c", "bt3c data structures");
/****************************************************************************
****************************************************************************
** Netgraph specific
****************************************************************************
****************************************************************************/
/*
* Netgraph node type
*/
/* Queue length */
static const struct ng_parse_struct_field ng_bt3c_node_qlen_type_fields[] =
{
{ "queue", &ng_parse_int32_type, },
{ "qlen", &ng_parse_int32_type, },
{ NULL, }
};
static const struct ng_parse_type ng_bt3c_node_qlen_type = {
&ng_parse_struct_type,
&ng_bt3c_node_qlen_type_fields
};
/* Stat info */
static const struct ng_parse_struct_field ng_bt3c_node_stat_type_fields[] =
{
{ "pckts_recv", &ng_parse_uint32_type, },
{ "bytes_recv", &ng_parse_uint32_type, },
{ "pckts_sent", &ng_parse_uint32_type, },
{ "bytes_sent", &ng_parse_uint32_type, },
{ "oerrors", &ng_parse_uint32_type, },
{ "ierrors", &ng_parse_uint32_type, },
{ NULL, }
};
static const struct ng_parse_type ng_bt3c_node_stat_type = {
&ng_parse_struct_type,
&ng_bt3c_node_stat_type_fields
};
static const struct ng_cmdlist ng_bt3c_cmdlist[] = {
{
NGM_BT3C_COOKIE,
NGM_BT3C_NODE_GET_STATE,
"get_state",
NULL,
&ng_parse_uint16_type
},
{
NGM_BT3C_COOKIE,
NGM_BT3C_NODE_SET_DEBUG,
"set_debug",
&ng_parse_uint16_type,
NULL
},
{
NGM_BT3C_COOKIE,
NGM_BT3C_NODE_GET_DEBUG,
"get_debug",
NULL,
&ng_parse_uint16_type
},
{
NGM_BT3C_COOKIE,
NGM_BT3C_NODE_GET_QLEN,
"get_qlen",
NULL,
&ng_bt3c_node_qlen_type
},
{
NGM_BT3C_COOKIE,
NGM_BT3C_NODE_SET_QLEN,
"set_qlen",
&ng_bt3c_node_qlen_type,
NULL
},
{
NGM_BT3C_COOKIE,
NGM_BT3C_NODE_GET_STAT,
"get_stat",
NULL,
&ng_bt3c_node_stat_type
},
{
NGM_BT3C_COOKIE,
NGM_BT3C_NODE_RESET_STAT,
"reset_stat",
NULL,
NULL
},
{ 0, }
};
static struct ng_type typestruct = {
.version = NG_ABI_VERSION,
.name = NG_BT3C_NODE_TYPE,
.constructor = ng_bt3c_constructor,
.rcvmsg = ng_bt3c_rcvmsg,
.shutdown = ng_bt3c_shutdown,
.newhook = ng_bt3c_newhook,
.connect = ng_bt3c_connect,
.rcvdata = ng_bt3c_rcvdata,
.disconnect = ng_bt3c_disconnect,
.cmdlist = ng_bt3c_cmdlist
};
/*
* Netgraph node constructor. Do not allow to create node of this type.
*/
static int
ng_bt3c_constructor(node_p node)
{
return (EINVAL);
} /* ng_bt3c_constructor */
/*
* Netgraph node destructor. Destroy node only when device has been detached
*/
static int
ng_bt3c_shutdown(node_p node)
{
bt3c_softc_p sc = (bt3c_softc_p) NG_NODE_PRIVATE(node);
/* Let old node go */
NG_NODE_SET_PRIVATE(node, NULL);
NG_NODE_UNREF(node);
/* Create new fresh one if we are not going down */
if (sc == NULL)
goto out;
/* Create new Netgraph node */
if (ng_make_node_common(&typestruct, &sc->node) != 0) {
device_printf(sc->dev, "Could not create Netgraph node\n");
sc->node = NULL;
goto out;
}
/* Name new Netgraph node */
if (ng_name_node(sc->node, device_get_nameunit(sc->dev)) != 0) {
device_printf(sc->dev, "Could not name Netgraph node\n");
NG_NODE_UNREF(sc->node);
sc->node = NULL;
goto out;
}
NG_NODE_SET_PRIVATE(sc->node, sc);
out:
return (0);
} /* ng_bt3c_shutdown */
/*
* Create new hook. There can only be one.
*/
static int
ng_bt3c_newhook(node_p node, hook_p hook, char const *name)
{
bt3c_softc_p sc = (bt3c_softc_p) NG_NODE_PRIVATE(node);
if (strcmp(name, NG_BT3C_HOOK) != 0)
return (EINVAL);
if (sc->hook != NULL)
return (EISCONN);
sc->hook = hook;
return (0);
} /* ng_bt3c_newhook */
/*
* Connect hook. Say YEP, that's OK with me.
*/
static int
ng_bt3c_connect(hook_p hook)
{
bt3c_softc_p sc = (bt3c_softc_p) NG_NODE_PRIVATE(NG_HOOK_NODE(hook));
if (hook != sc->hook) {
sc->hook = NULL;
return (EINVAL);
}
/* set the hook into queueing mode (for incoming (from wire) packets) */
NG_HOOK_FORCE_QUEUE(NG_HOOK_PEER(hook));
return (0);
} /* ng_bt3c_connect */
/*
* Disconnect hook
*/
static int
ng_bt3c_disconnect(hook_p hook)
{
bt3c_softc_p sc = (bt3c_softc_p) NG_NODE_PRIVATE(NG_HOOK_NODE(hook));
/*
* We need to check for sc != NULL because we can be called from
* bt3c_pccard_detach() via ng_rmnode_self()
*/
if (sc != NULL) {
if (hook != sc->hook)
return (EINVAL);
IF_DRAIN(&sc->inq);
IF_DRAIN(&sc->outq);
sc->hook = NULL;
}
return (0);
} /* ng_bt3c_disconnect */
/*
* Process control message
*/
static int
ng_bt3c_rcvmsg(node_p node, item_p item, hook_p lasthook)
{
bt3c_softc_p sc = (bt3c_softc_p) NG_NODE_PRIVATE(node);
struct ng_mesg *msg = NULL, *rsp = NULL;
int error = 0;
if (sc == NULL) {
NG_FREE_ITEM(item);
return (EHOSTDOWN);
}
NGI_GET_MSG(item, msg);
switch (msg->header.typecookie) {
case NGM_GENERIC_COOKIE:
switch (msg->header.cmd) {
case NGM_TEXT_STATUS:
NG_MKRESPONSE(rsp, msg, NG_TEXTRESPONSE, M_NOWAIT);
if (rsp == NULL)
error = ENOMEM;
else
snprintf(rsp->data, NG_TEXTRESPONSE,
"Hook: %s\n" \
"Flags: %#x\n" \
"Debug: %d\n" \
"State: %d\n" \
"IncmQ: [len:%d,max:%d]\n" \
"OutgQ: [len:%d,max:%d]\n",
(sc->hook != NULL)? NG_BT3C_HOOK : "",
sc->flags,
sc->debug,
sc->state,
_IF_QLEN(&sc->inq), /* XXX */
sc->inq.ifq_maxlen, /* XXX */
_IF_QLEN(&sc->outq), /* XXX */
sc->outq.ifq_maxlen /* XXX */
);
break;
default:
error = EINVAL;
break;
}
break;
case NGM_BT3C_COOKIE:
switch (msg->header.cmd) {
case NGM_BT3C_NODE_GET_STATE:
NG_MKRESPONSE(rsp, msg, sizeof(ng_bt3c_node_state_ep),
M_NOWAIT);
if (rsp == NULL)
error = ENOMEM;
else
*((ng_bt3c_node_state_ep *)(rsp->data)) =
sc->state;
break;
case NGM_BT3C_NODE_SET_DEBUG:
if (msg->header.arglen != sizeof(ng_bt3c_node_debug_ep))
error = EMSGSIZE;
else
sc->debug =
*((ng_bt3c_node_debug_ep *)(msg->data));
break;
case NGM_BT3C_NODE_GET_DEBUG:
NG_MKRESPONSE(rsp, msg, sizeof(ng_bt3c_node_debug_ep),
M_NOWAIT);
if (rsp == NULL)
error = ENOMEM;
else
*((ng_bt3c_node_debug_ep *)(rsp->data)) =
sc->debug;
break;
case NGM_BT3C_NODE_GET_QLEN:
NG_MKRESPONSE(rsp, msg, sizeof(ng_bt3c_node_qlen_ep),
M_NOWAIT);
if (rsp == NULL) {
error = ENOMEM;
break;
}
switch (((ng_bt3c_node_qlen_ep *)(msg->data))->queue) {
case NGM_BT3C_NODE_IN_QUEUE:
((ng_bt3c_node_qlen_ep *)(rsp->data))->queue =
NGM_BT3C_NODE_IN_QUEUE;
((ng_bt3c_node_qlen_ep *)(rsp->data))->qlen =
sc->inq.ifq_maxlen;
break;
case NGM_BT3C_NODE_OUT_QUEUE:
((ng_bt3c_node_qlen_ep *)(rsp->data))->queue =
NGM_BT3C_NODE_OUT_QUEUE;
((ng_bt3c_node_qlen_ep *)(rsp->data))->qlen =
sc->outq.ifq_maxlen;
break;
default:
NG_FREE_MSG(rsp);
error = EINVAL;
break;
}
break;
case NGM_BT3C_NODE_SET_QLEN:
if (msg->header.arglen != sizeof(ng_bt3c_node_qlen_ep)){
error = EMSGSIZE;
break;
}
if (((ng_bt3c_node_qlen_ep *)(msg->data))->qlen <= 0) {
error = EINVAL;
break;
}
switch (((ng_bt3c_node_qlen_ep *)(msg->data))->queue) {
case NGM_BT3C_NODE_IN_QUEUE:
sc->inq.ifq_maxlen = ((ng_bt3c_node_qlen_ep *)
(msg->data))->qlen; /* XXX */
break;
case NGM_BT3C_NODE_OUT_QUEUE:
sc->outq.ifq_maxlen = ((ng_bt3c_node_qlen_ep *)
(msg->data))->qlen; /* XXX */
break;
default:
error = EINVAL;
break;
}
break;
case NGM_BT3C_NODE_GET_STAT:
NG_MKRESPONSE(rsp, msg, sizeof(ng_bt3c_node_stat_ep),
M_NOWAIT);
if (rsp == NULL)
error = ENOMEM;
else
bcopy(&sc->stat, rsp->data,
sizeof(ng_bt3c_node_stat_ep));
break;
case NGM_BT3C_NODE_RESET_STAT:
NG_BT3C_STAT_RESET(sc->stat);
break;
case NGM_BT3C_NODE_DOWNLOAD_FIRMWARE:
if (msg->header.arglen <
sizeof(ng_bt3c_firmware_block_ep))
error = EMSGSIZE;
else
bt3c_download_firmware(sc, msg->data,
msg->header.arglen);
break;
default:
error = EINVAL;
break;
}
break;
default:
error = EINVAL;
break;
}
NG_RESPOND_MSG(error, node, item, rsp);
NG_FREE_MSG(msg);
return (error);
} /* ng_bt3c_rcvmsg */
/*
* Process data
*/
static int
ng_bt3c_rcvdata(hook_p hook, item_p item)
{
bt3c_softc_p sc = (bt3c_softc_p)NG_NODE_PRIVATE(NG_HOOK_NODE(hook));
struct mbuf *m = NULL;
int error = 0;
if (sc == NULL) {
error = EHOSTDOWN;
goto out;
}
if (hook != sc->hook) {
error = EINVAL;
goto out;
}
NGI_GET_M(item, m);
IF_LOCK(&sc->outq);
if (_IF_QFULL(&sc->outq)) {
NG_BT3C_ERR(sc->dev,
"Outgoing queue is full. Dropping mbuf, len=%d\n", m->m_pkthdr.len);
_IF_DROP(&sc->outq);
NG_BT3C_STAT_OERROR(sc->stat);
NG_FREE_M(m);
} else
_IF_ENQUEUE(&sc->outq, m);
IF_UNLOCK(&sc->outq);
error = ng_send_fn(sc->node, NULL, bt3c_send, NULL, 0 /* new send */);
out:
NG_FREE_ITEM(item);
return (error);
} /* ng_bt3c_rcvdata */
/****************************************************************************
****************************************************************************
** PCMCIA driver specific
****************************************************************************
****************************************************************************/
/*
* PC Card (PCMCIA) probe routine
*/
static int
bt3c_pccard_probe(device_t dev)
{
static struct pccard_product const bt3c_pccard_products[] = {
PCMCIA_CARD(3COM, 3CRWB609),
{ NULL, }
};
struct pccard_product const *pp = NULL;
pp = pccard_product_lookup(dev, bt3c_pccard_products,
sizeof(bt3c_pccard_products[0]), NULL);
if (pp == NULL)
return (ENXIO);
device_set_desc(dev, pp->pp_name);
return (0);
} /* bt3c_pccard_probe */
/*
* PC Card (PCMCIA) attach routine
*/
static int
bt3c_pccard_attach(device_t dev)
{
bt3c_softc_p sc = NULL;
sc = (bt3c_softc_p) malloc(sizeof(*sc), M_BT3C, M_NOWAIT|M_ZERO);
if (sc == NULL)
return (ENOMEM);
/* Allocate I/O ports */
sc->iobase_rid = 0;
sc->iobase = bus_alloc_resource(dev, SYS_RES_IOPORT, &sc->iobase_rid,
0, ~0, 8, RF_ACTIVE);
if (sc->iobase == NULL) {
device_printf(dev, "Could not allocate I/O ports\n");
goto bad;
}
/* Allocate IRQ */
sc->irq_rid = 0;
sc->irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &sc->irq_rid,
RF_ACTIVE);
if (sc->irq == NULL) {
device_printf(dev, "Could not allocate IRQ\n");
goto bad;
}
sc->irq_cookie = NULL;
if (bus_setup_intr(dev, sc->irq, INTR_TYPE_TTY, bt3c_intr, sc,
&sc->irq_cookie) != 0) {
device_printf(dev, "Could not setup ISR\n");
goto bad;
}
/* Attach handler to TTY SWI thread */
sc->ith = NULL;
if (swi_add(&tty_ithd, device_get_nameunit(dev),
bt3c_swi_intr, sc, SWI_TTY, 0, &sc->ith) < 0) {
device_printf(dev, "Could not setup SWI ISR\n");
goto bad;
}
/* Create Netgraph node */
if (ng_make_node_common(&typestruct, &sc->node) != 0) {
device_printf(dev, "Could not create Netgraph node\n");
sc->node = NULL;
goto bad;
}
/* Name Netgraph node */
if (ng_name_node(sc->node, device_get_nameunit(dev)) != 0) {
device_printf(dev, "Could not name Netgraph node\n");
NG_NODE_UNREF(sc->node);
sc->node = NULL;
goto bad;
}
sc->dev = dev;
sc->debug = NG_BT3C_WARN_LEVEL;
sc->inq.ifq_maxlen = sc->outq.ifq_maxlen = BT3C_DEFAULTQLEN;
mtx_init(&sc->inq.ifq_mtx, "BT3C inq", NULL, MTX_DEF);
mtx_init(&sc->outq.ifq_mtx, "BT3C outq", NULL, MTX_DEF);
sc->state = NG_BT3C_W4_PKT_IND;
sc->want = 1;
NG_NODE_SET_PRIVATE(sc->node, sc);
device_set_softc(dev, sc);
return (0);
bad:
if (sc->ith != NULL) {
ithread_remove_handler(sc->ith);
sc->ith = NULL;
}
if (sc->irq != NULL) {
if (sc->irq_cookie != NULL)
bus_teardown_intr(dev, sc->irq, sc->irq_cookie);
bus_release_resource(dev, SYS_RES_IRQ,
sc->irq_rid, sc->irq);
sc->irq = NULL;
sc->irq_rid = 0;
}
if (sc->iobase != NULL) {
bus_release_resource(dev, SYS_RES_IOPORT,
sc->iobase_rid, sc->iobase);
sc->iobase = NULL;
sc->iobase_rid = 0;
}
free(sc, M_BT3C);
return (ENXIO);
} /* bt3c_pccacd_attach */
/*
* PC Card (PCMCIA) detach routine
*/
static int
bt3c_pccard_detach(device_t dev)
{
bt3c_softc_p sc = (bt3c_softc_p) device_get_softc(dev);
if (sc == NULL)
return (0);
device_set_softc(dev, NULL);
ithread_remove_handler(sc->ith);
sc->ith = NULL;
bus_teardown_intr(dev, sc->irq, sc->irq_cookie);
bus_release_resource(dev, SYS_RES_IRQ, sc->irq_rid, sc->irq);
sc->irq_cookie = NULL;
sc->irq = NULL;
sc->irq_rid = 0;
bus_release_resource(dev, SYS_RES_IOPORT, sc->iobase_rid, sc->iobase);
sc->iobase = NULL;
sc->iobase_rid = 0;
if (sc->node != NULL) {
NG_NODE_SET_PRIVATE(sc->node, NULL);
ng_rmnode_self(sc->node);
sc->node = NULL;
}
NG_FREE_M(sc->m);
IF_DRAIN(&sc->inq);
IF_DRAIN(&sc->outq);
mtx_destroy(&sc->inq.ifq_mtx);
mtx_destroy(&sc->outq.ifq_mtx);
bzero(sc, sizeof(*sc));
free(sc, M_BT3C);
return (0);
} /* bt3c_pccacd_detach */
/*
* Interrupt service routine's
*/
static void
bt3c_intr(void *context)
{
bt3c_softc_p sc = (bt3c_softc_p) context;
u_int16_t control, status;
if (sc == NULL || sc->ith == NULL) {
printf("%s: bogus interrupt\n", NG_BT3C_NODE_TYPE);
return;
}
bt3c_read_control(sc, control);
if ((control & 0x80) == 0)
return;
bt3c_read(sc, 0x7001, status);
NG_BT3C_INFO(sc->dev, "control=%#x, status=%#x\n", control, status);
if ((status & 0xff) == 0x7f || (status & 0xff) == 0xff) {
NG_BT3C_WARN(sc->dev, "Strange status=%#x\n", status);
return;
}
/* Receive complete */
if (status & 0x0001)
bt3c_receive(sc);
/* Record status and schedule SWI */
sc->status |= status;
swi_sched(sc->ith, 0);
/* Complete interrupt */
bt3c_write(sc, 0x7001, 0x0000);
bt3c_write_control(sc, control);
} /* bt3c_intr */
/*
* Receive data
*/
static void
bt3c_receive(bt3c_softc_p sc)
{
u_int16_t i, count, c;
/* Receive data from the card */
bt3c_read(sc, 0x7006, count);
NG_BT3C_INFO(sc->dev, "The card has %d characters\n", count);
bt3c_set_address(sc, 0x7480);
for (i = 0; i < count; i++) {
/* Allocate new mbuf if needed */
if (sc->m == NULL) {
sc->state = NG_BT3C_W4_PKT_IND;
sc->want = 1;
MGETHDR(sc->m, M_DONTWAIT, MT_DATA);
if (sc->m == NULL) {
NG_BT3C_ERR(sc->dev, "Could not get mbuf\n");
NG_BT3C_STAT_IERROR(sc->stat);
break; /* XXX lost of sync */
}
MCLGET(sc->m, M_DONTWAIT);
if (!(sc->m->m_flags & M_EXT)) {
NG_FREE_M(sc->m);
NG_BT3C_ERR(sc->dev, "Could not get cluster\n");
NG_BT3C_STAT_IERROR(sc->stat);
break; /* XXX lost of sync */
}
sc->m->m_len = sc->m->m_pkthdr.len = 0;
}
/* Read and append character to mbuf */
bt3c_read_data(sc, c);
if (sc->m->m_pkthdr.len >= MCLBYTES) {
NG_BT3C_ERR(sc->dev, "Oversized frame\n");
NG_FREE_M(sc->m);
sc->state = NG_BT3C_W4_PKT_IND;
sc->want = 1;
break; /* XXX lost of sync */
}
mtod(sc->m, u_int8_t *)[sc->m->m_len ++] = (u_int8_t) c;
sc->m->m_pkthdr.len ++;
NG_BT3C_INFO(sc->dev,
"Got char %#x, want=%d, got=%d\n", c, sc->want, sc->m->m_pkthdr.len);
if (sc->m->m_pkthdr.len < sc->want)
continue; /* wait for more */
switch (sc->state) {
/* Got packet indicator */
case NG_BT3C_W4_PKT_IND:
NG_BT3C_INFO(sc->dev,
"Got packet indicator %#x\n", *mtod(sc->m, u_int8_t *));
sc->state = NG_BT3C_W4_PKT_HDR;
/*
* Since packet indicator included in the packet
* header just set sc->want to sizeof(packet header).
*/
switch (*mtod(sc->m, u_int8_t *)) {
case NG_HCI_ACL_DATA_PKT:
sc->want = sizeof(ng_hci_acldata_pkt_t);
break;
case NG_HCI_SCO_DATA_PKT:
sc->want = sizeof(ng_hci_scodata_pkt_t);
break;
case NG_HCI_EVENT_PKT:
sc->want = sizeof(ng_hci_event_pkt_t);
break;
default:
NG_BT3C_ERR(sc->dev,
"Ignoring unknown packet type=%#x\n", *mtod(sc->m, u_int8_t *));
NG_BT3C_STAT_IERROR(sc->stat);
NG_FREE_M(sc->m);
sc->state = NG_BT3C_W4_PKT_IND;
sc->want = 1;
break;
}
break;
/* Got packet header */
case NG_BT3C_W4_PKT_HDR:
sc->state = NG_BT3C_W4_PKT_DATA;
switch (*mtod(sc->m, u_int8_t *)) {
case NG_HCI_ACL_DATA_PKT:
c = le16toh(mtod(sc->m,
ng_hci_acldata_pkt_t *)->length);
break;
case NG_HCI_SCO_DATA_PKT:
c = mtod(sc->m, ng_hci_scodata_pkt_t*)->length;
break;
case NG_HCI_EVENT_PKT:
c = mtod(sc->m, ng_hci_event_pkt_t *)->length;
break;
default:
KASSERT(0,
("Invalid packet type=%#x\n", *mtod(sc->m, u_int8_t *)));
break;
}
NG_BT3C_INFO(sc->dev,
"Got packet header, packet type=%#x, got so far %d, payload size=%d\n",
*mtod(sc->m, u_int8_t *), sc->m->m_pkthdr.len,
c);
if (c > 0) {
sc->want += c;
break;
}
/* else FALLTHROUGH and deliver frame */
/* XXX is this true? should we deliver empty frame? */
/* Got packet data */
case NG_BT3C_W4_PKT_DATA:
NG_BT3C_INFO(sc->dev,
"Got full packet, packet type=%#x, packet size=%d\n",
*mtod(sc->m, u_int8_t *), sc->m->m_pkthdr.len);
NG_BT3C_STAT_BYTES_RECV(sc->stat, sc->m->m_pkthdr.len);
NG_BT3C_STAT_PCKTS_RECV(sc->stat);
IF_LOCK(&sc->inq);
if (_IF_QFULL(&sc->inq)) {
NG_BT3C_ERR(sc->dev,
"Incoming queue is full. Dropping mbuf, len=%d\n", sc->m->m_pkthdr.len);
_IF_DROP(&sc->inq);
NG_BT3C_STAT_IERROR(sc->stat);
NG_FREE_M(sc->m);
} else {
_IF_ENQUEUE(&sc->inq, sc->m);
sc->m = NULL;
}
IF_UNLOCK(&sc->inq);
sc->state = NG_BT3C_W4_PKT_IND;
sc->want = 1;
break;
default:
KASSERT(0,
("Invalid node state=%d", sc->state));
break;
}
}
bt3c_write(sc, 0x7006, 0x0000);
} /* bt3c_receive */
/*
* SWI interrupt handler
* Netgraph part is handled via ng_send_fn() to avoid race with hook
* connection/disconnection
*/
static void
bt3c_swi_intr(void *context)
{
bt3c_softc_p sc = (bt3c_softc_p) context;
u_int16_t data;
/* Receive complete */
if (sc->status & 0x0001) {
sc->status &= ~0x0001; /* XXX is it safe? */
if (ng_send_fn(sc->node, NULL, &bt3c_forward, NULL, 0) != 0)
NG_BT3C_ALERT(sc->dev, "Could not forward frames!\n");
}
/* Send complete */
if (sc->status & 0x0002) {
sc->status &= ~0x0002; /* XXX is it safe */
if (ng_send_fn(sc->node, NULL, &bt3c_send, NULL, 1) != 0)
NG_BT3C_ALERT(sc->dev, "Could not send frames!\n");
}
/* Antenna position */
if (sc->status & 0x0020) {
sc->status &= ~0x0020; /* XXX is it safe */
bt3c_read(sc, 0x7002, data);
data &= 0x10;
if (data)
sc->flags |= BT3C_ANTENNA_OUT;
else
sc->flags &= ~BT3C_ANTENNA_OUT;
NG_BT3C_INFO(sc->dev, "Antenna %s\n", data? "OUT" : "IN");
}
} /* bt3c_swi_intr */
/*
* Send all incoming frames to the upper layer
*/
static void
bt3c_forward(node_p node, hook_p hook, void *arg1, int arg2)
{
bt3c_softc_p sc = (bt3c_softc_p) NG_NODE_PRIVATE(node);
struct mbuf *m = NULL;
int error;
if (sc == NULL)
return;
if (sc->hook != NULL && NG_HOOK_IS_VALID(sc->hook)) {
for (;;) {
IF_DEQUEUE(&sc->inq, m);
if (m == NULL)
break;
NG_SEND_DATA_ONLY(error, sc->hook, m);
if (error != 0)
NG_BT3C_STAT_IERROR(sc->stat);
}
} else {
IF_LOCK(&sc->inq);
for (;;) {
_IF_DEQUEUE(&sc->inq, m);
if (m == NULL)
break;
NG_BT3C_STAT_IERROR(sc->stat);
NG_FREE_M(m);
}
IF_UNLOCK(&sc->inq);
}
} /* bt3c_forward */
/*
* Send more data to the device. Must be called when node is locked
*/
static void
bt3c_send(node_p node, hook_p hook, void *arg, int completed)
{
bt3c_softc_p sc = (bt3c_softc_p) NG_NODE_PRIVATE(node);
struct mbuf *m = NULL;
int i, wrote, len;
if (sc == NULL)
return;
if (completed)
sc->flags &= ~BT3C_XMIT;
if (sc->flags & BT3C_XMIT)
return;
bt3c_set_address(sc, 0x7080);
for (wrote = 0; wrote < BT3C_FIFO_SIZE; ) {
IF_DEQUEUE(&sc->outq, m);
if (m == NULL)
break;
while (m != NULL) {
len = min((BT3C_FIFO_SIZE - wrote), m->m_len);
for (i = 0; i < len; i++)
bt3c_write_data(sc, m->m_data[i]);
wrote += len;
m->m_data += len;
m->m_len -= len;
if (m->m_len > 0)
break;
m = m_free(m);
}
if (m != NULL) {
IF_PREPEND(&sc->outq, m);
break;
}
NG_BT3C_STAT_PCKTS_SENT(sc->stat);
}
if (wrote > 0) {
NG_BT3C_INFO(sc->dev, "Wrote %d bytes\n", wrote);
NG_BT3C_STAT_BYTES_SENT(sc->stat, wrote);
bt3c_write(sc, 0x7005, wrote);
sc->flags |= BT3C_XMIT;
}
} /* bt3c_send */
/*
* Download chip firmware
*/
static void
bt3c_download_firmware(bt3c_softc_p sc, char const *firmware, int firmware_size)
{
ng_bt3c_firmware_block_ep const *block = NULL;
u_int16_t const *data = NULL;
int i, size;
u_int8_t c;
/* Reset */
device_printf(sc->dev, "Reseting the card...\n");
bt3c_write(sc, 0x8040, 0x0404);
bt3c_write(sc, 0x8040, 0x0400);
DELAY(1);
bt3c_write(sc, 0x8040, 0x0404);
DELAY(17);
/* Download firmware */
device_printf(sc->dev, "Starting firmware download process...\n");
for (size = 0; size < firmware_size; ) {
block = (ng_bt3c_firmware_block_ep const *)(firmware + size);
data = (u_int16_t const *)(block + 1);
if (bootverbose)
device_printf(sc->dev, "Download firmware block, " \
"address=%#08x, size=%d words, aligment=%d\n",
block->block_address, block->block_size,
block->block_alignment);
bt3c_set_address(sc, block->block_address);
for (i = 0; i < block->block_size; i++)
bt3c_write_data(sc, data[i]);
size += (sizeof(*block) + (block->block_size * 2) +
block->block_alignment);
}
DELAY(17);
device_printf(sc->dev, "Firmware download process complete\n");
/* Boot */
device_printf(sc->dev, "Starting the card...\n");
bt3c_set_address(sc, 0x3000);
bt3c_read_control(sc, c);
bt3c_write_control(sc, (c | 0x40));
DELAY(17);
/* Clear registers */
device_printf(sc->dev, "Clearing card registers...\n");
bt3c_write(sc, 0x7006, 0x0000);
bt3c_write(sc, 0x7005, 0x0000);
bt3c_write(sc, 0x7001, 0x0000);
DELAY(1000);
} /* bt3c_download_firmware */
/****************************************************************************
****************************************************************************
** Driver module
****************************************************************************
****************************************************************************/
/*
* PC Card (PCMCIA) driver
*/
static device_method_t bt3c_pccard_methods[] = {
/* Device interface */
DEVMETHOD(device_probe, bt3c_pccard_probe),
DEVMETHOD(device_attach, bt3c_pccard_attach),
DEVMETHOD(device_detach, bt3c_pccard_detach),
{ 0, 0 }
};
static driver_t bt3c_pccard_driver = {
NG_BT3C_NODE_TYPE,
bt3c_pccard_methods,
0
};
static devclass_t bt3c_devclass;
/*
* Load/Unload the driver module
*/
static int
bt3c_modevent(module_t mod, int event, void *data)
{
int error;
switch (event) {
case MOD_LOAD:
error = ng_newtype(&typestruct);
if (error != 0)
printf("%s: Could not register Netgraph node type, " \
"error=%d\n", NG_BT3C_NODE_TYPE, error);
break;
case MOD_UNLOAD:
error = ng_rmtype(&typestruct);
break;
default:
error = EOPNOTSUPP;
break;
}
return (error);
} /* bt3c_modevent */
DRIVER_MODULE(bt3c, pccard, bt3c_pccard_driver, bt3c_devclass, bt3c_modevent,0);
MODULE_VERSION(ng_bt3c, NG_BLUETOOTH_VERSION);
MODULE_DEPEND(ng_bt3c, netgraph, NG_ABI_VERSION, NG_ABI_VERSION,NG_ABI_VERSION);
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