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Subversion Repositories or1k_soc_on_altera_embedded_dev_kit

[/] [or1k_soc_on_altera_embedded_dev_kit/] [trunk/] [linux-2.6/] [linux-2.6.24/] [net/] [bluetooth/] [cmtp/] [capi.c] - Blame information for rev 11

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/*
   CMTP implementation for Linux Bluetooth stack (BlueZ).
   Copyright (C) 2002-2003 Marcel Holtmann <marcel@holtmann.org>
 
   This program is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License version 2 as
   published by the Free Software Foundation;
 
   THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
   OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
   FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS.
   IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) AND AUTHOR(S) BE LIABLE FOR ANY
   CLAIM, OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES
   WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
   ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
   OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 
   ALL LIABILITY, INCLUDING LIABILITY FOR INFRINGEMENT OF ANY PATENTS,
   COPYRIGHTS, TRADEMARKS OR OTHER RIGHTS, RELATING TO USE OF THIS
   SOFTWARE IS DISCLAIMED.
*/
 
#include <linux/module.h>
 
#include <linux/types.h>
#include <linux/errno.h>
#include <linux/kernel.h>
#include <linux/sched.h>
#include <linux/slab.h>
#include <linux/poll.h>
#include <linux/fcntl.h>
#include <linux/skbuff.h>
#include <linux/socket.h>
#include <linux/ioctl.h>
#include <linux/file.h>
#include <linux/wait.h>
#include <net/sock.h>
 
#include <linux/isdn/capilli.h>
#include <linux/isdn/capicmd.h>
#include <linux/isdn/capiutil.h>
 
#include "cmtp.h"
 
#ifndef CONFIG_BT_CMTP_DEBUG
#undef  BT_DBG
#define BT_DBG(D...)
#endif
 
#define CAPI_INTEROPERABILITY           0x20
 
#define CAPI_INTEROPERABILITY_REQ       CAPICMD(CAPI_INTEROPERABILITY, CAPI_REQ)
#define CAPI_INTEROPERABILITY_CONF      CAPICMD(CAPI_INTEROPERABILITY, CAPI_CONF)
#define CAPI_INTEROPERABILITY_IND       CAPICMD(CAPI_INTEROPERABILITY, CAPI_IND)
#define CAPI_INTEROPERABILITY_RESP      CAPICMD(CAPI_INTEROPERABILITY, CAPI_RESP)
 
#define CAPI_INTEROPERABILITY_REQ_LEN   (CAPI_MSG_BASELEN + 2)
#define CAPI_INTEROPERABILITY_CONF_LEN  (CAPI_MSG_BASELEN + 4)
#define CAPI_INTEROPERABILITY_IND_LEN   (CAPI_MSG_BASELEN + 2)
#define CAPI_INTEROPERABILITY_RESP_LEN  (CAPI_MSG_BASELEN + 2)
 
#define CAPI_FUNCTION_REGISTER          0
#define CAPI_FUNCTION_RELEASE           1
#define CAPI_FUNCTION_GET_PROFILE       2
#define CAPI_FUNCTION_GET_MANUFACTURER  3
#define CAPI_FUNCTION_GET_VERSION       4
#define CAPI_FUNCTION_GET_SERIAL_NUMBER 5
#define CAPI_FUNCTION_MANUFACTURER      6
#define CAPI_FUNCTION_LOOPBACK          7
 
 
#define CMTP_MSGNUM     1
#define CMTP_APPLID     2
#define CMTP_MAPPING    3
 
static struct cmtp_application *cmtp_application_add(struct cmtp_session *session, __u16 appl)
{
        struct cmtp_application *app = kzalloc(sizeof(*app), GFP_KERNEL);
 
        BT_DBG("session %p application %p appl %d", session, app, appl);
 
        if (!app)
                return NULL;
 
        app->state = BT_OPEN;
        app->appl = appl;
 
        list_add_tail(&app->list, &session->applications);
 
        return app;
}
 
static void cmtp_application_del(struct cmtp_session *session, struct cmtp_application *app)
{
        BT_DBG("session %p application %p", session, app);
 
        if (app) {
                list_del(&app->list);
                kfree(app);
        }
}
 
static struct cmtp_application *cmtp_application_get(struct cmtp_session *session, int pattern, __u16 value)
{
        struct cmtp_application *app;
        struct list_head *p, *n;
 
        list_for_each_safe(p, n, &session->applications) {
                app = list_entry(p, struct cmtp_application, list);
                switch (pattern) {
                case CMTP_MSGNUM:
                        if (app->msgnum == value)
                                return app;
                        break;
                case CMTP_APPLID:
                        if (app->appl == value)
                                return app;
                        break;
                case CMTP_MAPPING:
                        if (app->mapping == value)
                                return app;
                        break;
                }
        }
 
        return NULL;
}
 
static int cmtp_msgnum_get(struct cmtp_session *session)
{
        session->msgnum++;
 
        if ((session->msgnum & 0xff) > 200)
                session->msgnum = CMTP_INITIAL_MSGNUM + 1;
 
        return session->msgnum;
}
 
static void cmtp_send_capimsg(struct cmtp_session *session, struct sk_buff *skb)
{
        struct cmtp_scb *scb = (void *) skb->cb;
 
        BT_DBG("session %p skb %p len %d", session, skb, skb->len);
 
        scb->id = -1;
        scb->data = (CAPIMSG_COMMAND(skb->data) == CAPI_DATA_B3);
 
        skb_queue_tail(&session->transmit, skb);
 
        cmtp_schedule(session);
}
 
static void cmtp_send_interopmsg(struct cmtp_session *session,
                                        __u8 subcmd, __u16 appl, __u16 msgnum,
                                        __u16 function, unsigned char *buf, int len)
{
        struct sk_buff *skb;
        unsigned char *s;
 
        BT_DBG("session %p subcmd 0x%02x appl %d msgnum %d", session, subcmd, appl, msgnum);
 
        if (!(skb = alloc_skb(CAPI_MSG_BASELEN + 6 + len, GFP_ATOMIC))) {
                BT_ERR("Can't allocate memory for interoperability packet");
                return;
        }
 
        s = skb_put(skb, CAPI_MSG_BASELEN + 6 + len);
 
        capimsg_setu16(s, 0, CAPI_MSG_BASELEN + 6 + len);
        capimsg_setu16(s, 2, appl);
        capimsg_setu8 (s, 4, CAPI_INTEROPERABILITY);
        capimsg_setu8 (s, 5, subcmd);
        capimsg_setu16(s, 6, msgnum);
 
        /* Interoperability selector (Bluetooth Device Management) */
        capimsg_setu16(s, 8, 0x0001);
 
        capimsg_setu8 (s, 10, 3 + len);
        capimsg_setu16(s, 11, function);
        capimsg_setu8 (s, 13, len);
 
        if (len > 0)
                memcpy(s + 14, buf, len);
 
        cmtp_send_capimsg(session, skb);
}
 
static void cmtp_recv_interopmsg(struct cmtp_session *session, struct sk_buff *skb)
{
        struct capi_ctr *ctrl = &session->ctrl;
        struct cmtp_application *application;
        __u16 appl, msgnum, func, info;
        __u32 controller;
 
        BT_DBG("session %p skb %p len %d", session, skb, skb->len);
 
        switch (CAPIMSG_SUBCOMMAND(skb->data)) {
        case CAPI_CONF:
                if (skb->len < CAPI_MSG_BASELEN + 10)
                        break;
 
                func = CAPIMSG_U16(skb->data, CAPI_MSG_BASELEN + 5);
                info = CAPIMSG_U16(skb->data, CAPI_MSG_BASELEN + 8);
 
                switch (func) {
                case CAPI_FUNCTION_REGISTER:
                        msgnum = CAPIMSG_MSGID(skb->data);
 
                        application = cmtp_application_get(session, CMTP_MSGNUM, msgnum);
                        if (application) {
                                application->state = BT_CONNECTED;
                                application->msgnum = 0;
                                application->mapping = CAPIMSG_APPID(skb->data);
                                wake_up_interruptible(&session->wait);
                        }
 
                        break;
 
                case CAPI_FUNCTION_RELEASE:
                        appl = CAPIMSG_APPID(skb->data);
 
                        application = cmtp_application_get(session, CMTP_MAPPING, appl);
                        if (application) {
                                application->state = BT_CLOSED;
                                application->msgnum = 0;
                                wake_up_interruptible(&session->wait);
                        }
 
                        break;
 
                case CAPI_FUNCTION_GET_PROFILE:
                        if (skb->len < CAPI_MSG_BASELEN + 11 + sizeof(capi_profile))
                                break;
 
                        controller = CAPIMSG_U16(skb->data, CAPI_MSG_BASELEN + 11);
                        msgnum = CAPIMSG_MSGID(skb->data);
 
                        if (!info && (msgnum == CMTP_INITIAL_MSGNUM)) {
                                session->ncontroller = controller;
                                wake_up_interruptible(&session->wait);
                                break;
                        }
 
                        if (!info && ctrl) {
                                memcpy(&ctrl->profile,
                                        skb->data + CAPI_MSG_BASELEN + 11,
                                        sizeof(capi_profile));
                                session->state = BT_CONNECTED;
                                capi_ctr_ready(ctrl);
                        }
 
                        break;
 
                case CAPI_FUNCTION_GET_MANUFACTURER:
                        if (skb->len < CAPI_MSG_BASELEN + 15)
                                break;
 
                        controller = CAPIMSG_U32(skb->data, CAPI_MSG_BASELEN + 10);
 
                        if (!info && ctrl) {
                                int len = min_t(uint, CAPI_MANUFACTURER_LEN,
                                                skb->data[CAPI_MSG_BASELEN + 14]);
 
                                memset(ctrl->manu, 0, CAPI_MANUFACTURER_LEN);
                                strncpy(ctrl->manu,
                                        skb->data + CAPI_MSG_BASELEN + 15, len);
                        }
 
                        break;
 
                case CAPI_FUNCTION_GET_VERSION:
                        if (skb->len < CAPI_MSG_BASELEN + 32)
                                break;
 
                        controller = CAPIMSG_U32(skb->data, CAPI_MSG_BASELEN + 12);
 
                        if (!info && ctrl) {
                                ctrl->version.majorversion = CAPIMSG_U32(skb->data, CAPI_MSG_BASELEN + 16);
                                ctrl->version.minorversion = CAPIMSG_U32(skb->data, CAPI_MSG_BASELEN + 20);
                                ctrl->version.majormanuversion = CAPIMSG_U32(skb->data, CAPI_MSG_BASELEN + 24);
                                ctrl->version.minormanuversion = CAPIMSG_U32(skb->data, CAPI_MSG_BASELEN + 28);
                        }
 
                        break;
 
                case CAPI_FUNCTION_GET_SERIAL_NUMBER:
                        if (skb->len < CAPI_MSG_BASELEN + 17)
                                break;
 
                        controller = CAPIMSG_U32(skb->data, CAPI_MSG_BASELEN + 12);
 
                        if (!info && ctrl) {
                                int len = min_t(uint, CAPI_SERIAL_LEN,
                                                skb->data[CAPI_MSG_BASELEN + 16]);
 
                                memset(ctrl->serial, 0, CAPI_SERIAL_LEN);
                                strncpy(ctrl->serial,
                                        skb->data + CAPI_MSG_BASELEN + 17, len);
                        }
 
                        break;
                }
 
                break;
 
        case CAPI_IND:
                if (skb->len < CAPI_MSG_BASELEN + 6)
                        break;
 
                func = CAPIMSG_U16(skb->data, CAPI_MSG_BASELEN + 3);
 
                if (func == CAPI_FUNCTION_LOOPBACK) {
                        int len = min_t(uint, skb->len - CAPI_MSG_BASELEN - 6,
                                                skb->data[CAPI_MSG_BASELEN + 5]);
                        appl = CAPIMSG_APPID(skb->data);
                        msgnum = CAPIMSG_MSGID(skb->data);
                        cmtp_send_interopmsg(session, CAPI_RESP, appl, msgnum, func,
                                                skb->data + CAPI_MSG_BASELEN + 6, len);
                }
 
                break;
        }
 
        kfree_skb(skb);
}
 
void cmtp_recv_capimsg(struct cmtp_session *session, struct sk_buff *skb)
{
        struct capi_ctr *ctrl = &session->ctrl;
        struct cmtp_application *application;
        __u16 cmd, appl;
        __u32 contr;
 
        BT_DBG("session %p skb %p len %d", session, skb, skb->len);
 
        if (skb->len < CAPI_MSG_BASELEN)
                return;
 
        if (CAPIMSG_COMMAND(skb->data) == CAPI_INTEROPERABILITY) {
                cmtp_recv_interopmsg(session, skb);
                return;
        }
 
        if (session->flags & (1 << CMTP_LOOPBACK)) {
                kfree_skb(skb);
                return;
        }
 
        cmd = CAPICMD(CAPIMSG_COMMAND(skb->data), CAPIMSG_SUBCOMMAND(skb->data));
        appl = CAPIMSG_APPID(skb->data);
        contr = CAPIMSG_CONTROL(skb->data);
 
        application = cmtp_application_get(session, CMTP_MAPPING, appl);
        if (application) {
                appl = application->appl;
                CAPIMSG_SETAPPID(skb->data, appl);
        } else {
                BT_ERR("Can't find application with id %d", appl);
                kfree_skb(skb);
                return;
        }
 
        if ((contr & 0x7f) == 0x01) {
                contr = (contr & 0xffffff80) | session->num;
                CAPIMSG_SETCONTROL(skb->data, contr);
        }
 
        if (!ctrl) {
                BT_ERR("Can't find controller %d for message", session->num);
                kfree_skb(skb);
                return;
        }
 
        capi_ctr_handle_message(ctrl, appl, skb);
}
 
static int cmtp_load_firmware(struct capi_ctr *ctrl, capiloaddata *data)
{
        BT_DBG("ctrl %p data %p", ctrl, data);
 
        return 0;
}
 
static void cmtp_reset_ctr(struct capi_ctr *ctrl)
{
        struct cmtp_session *session = ctrl->driverdata;
 
        BT_DBG("ctrl %p", ctrl);
 
        capi_ctr_reseted(ctrl);
 
        atomic_inc(&session->terminate);
        cmtp_schedule(session);
}
 
static void cmtp_register_appl(struct capi_ctr *ctrl, __u16 appl, capi_register_params *rp)
{
        DECLARE_WAITQUEUE(wait, current);
        struct cmtp_session *session = ctrl->driverdata;
        struct cmtp_application *application;
        unsigned long timeo = CMTP_INTEROP_TIMEOUT;
        unsigned char buf[8];
        int err = 0, nconn, want = rp->level3cnt;
 
        BT_DBG("ctrl %p appl %d level3cnt %d datablkcnt %d datablklen %d",
                ctrl, appl, rp->level3cnt, rp->datablkcnt, rp->datablklen);
 
        application = cmtp_application_add(session, appl);
        if (!application) {
                BT_ERR("Can't allocate memory for new application");
                return;
        }
 
        if (want < 0)
                nconn = ctrl->profile.nbchannel * -want;
        else
                nconn = want;
 
        if (nconn == 0)
                nconn = ctrl->profile.nbchannel;
 
        capimsg_setu16(buf, 0, nconn);
        capimsg_setu16(buf, 2, rp->datablkcnt);
        capimsg_setu16(buf, 4, rp->datablklen);
 
        application->state = BT_CONFIG;
        application->msgnum = cmtp_msgnum_get(session);
 
        cmtp_send_interopmsg(session, CAPI_REQ, 0x0000, application->msgnum,
                                CAPI_FUNCTION_REGISTER, buf, 6);
 
        add_wait_queue(&session->wait, &wait);
        while (1) {
                set_current_state(TASK_INTERRUPTIBLE);
 
                if (!timeo) {
                        err = -EAGAIN;
                        break;
                }
 
                if (application->state == BT_CLOSED) {
                        err = -application->err;
                        break;
                }
 
                if (application->state == BT_CONNECTED)
                        break;
 
                if (signal_pending(current)) {
                        err = -EINTR;
                        break;
                }
 
                timeo = schedule_timeout(timeo);
        }
        set_current_state(TASK_RUNNING);
        remove_wait_queue(&session->wait, &wait);
 
        if (err) {
                cmtp_application_del(session, application);
                return;
        }
}
 
static void cmtp_release_appl(struct capi_ctr *ctrl, __u16 appl)
{
        struct cmtp_session *session = ctrl->driverdata;
        struct cmtp_application *application;
 
        BT_DBG("ctrl %p appl %d", ctrl, appl);
 
        application = cmtp_application_get(session, CMTP_APPLID, appl);
        if (!application) {
                BT_ERR("Can't find application");
                return;
        }
 
        application->msgnum = cmtp_msgnum_get(session);
 
        cmtp_send_interopmsg(session, CAPI_REQ, application->mapping, application->msgnum,
                                CAPI_FUNCTION_RELEASE, NULL, 0);
 
        wait_event_interruptible_timeout(session->wait,
                        (application->state == BT_CLOSED), CMTP_INTEROP_TIMEOUT);
 
        cmtp_application_del(session, application);
}
 
static u16 cmtp_send_message(struct capi_ctr *ctrl, struct sk_buff *skb)
{
        struct cmtp_session *session = ctrl->driverdata;
        struct cmtp_application *application;
        __u16 appl;
        __u32 contr;
 
        BT_DBG("ctrl %p skb %p", ctrl, skb);
 
        appl = CAPIMSG_APPID(skb->data);
        contr = CAPIMSG_CONTROL(skb->data);
 
        application = cmtp_application_get(session, CMTP_APPLID, appl);
        if ((!application) || (application->state != BT_CONNECTED)) {
                BT_ERR("Can't find application with id %d", appl);
                return CAPI_ILLAPPNR;
        }
 
        CAPIMSG_SETAPPID(skb->data, application->mapping);
 
        if ((contr & 0x7f) == session->num) {
                contr = (contr & 0xffffff80) | 0x01;
                CAPIMSG_SETCONTROL(skb->data, contr);
        }
 
        cmtp_send_capimsg(session, skb);
 
        return CAPI_NOERROR;
}
 
static char *cmtp_procinfo(struct capi_ctr *ctrl)
{
        return "CAPI Message Transport Protocol";
}
 
static int cmtp_ctr_read_proc(char *page, char **start, off_t off, int count, int *eof, struct capi_ctr *ctrl)
{
        struct cmtp_session *session = ctrl->driverdata;
        struct cmtp_application *app;
        struct list_head *p, *n;
        int len = 0;
 
        len += sprintf(page + len, "%s\n\n", cmtp_procinfo(ctrl));
        len += sprintf(page + len, "addr %s\n", session->name);
        len += sprintf(page + len, "ctrl %d\n", session->num);
 
        list_for_each_safe(p, n, &session->applications) {
                app = list_entry(p, struct cmtp_application, list);
                len += sprintf(page + len, "appl %d -> %d\n", app->appl, app->mapping);
        }
 
        if (off + count >= len)
                *eof = 1;
 
        if (len < off)
                return 0;
 
        *start = page + off;
 
        return ((count < len - off) ? count : len - off);
}
 
 
int cmtp_attach_device(struct cmtp_session *session)
{
        unsigned char buf[4];
        long ret;
 
        BT_DBG("session %p", session);
 
        capimsg_setu32(buf, 0, 0);
 
        cmtp_send_interopmsg(session, CAPI_REQ, 0xffff, CMTP_INITIAL_MSGNUM,
                                CAPI_FUNCTION_GET_PROFILE, buf, 4);
 
        ret = wait_event_interruptible_timeout(session->wait,
                        session->ncontroller, CMTP_INTEROP_TIMEOUT);
 
        BT_INFO("Found %d CAPI controller(s) on device %s", session->ncontroller, session->name);
 
        if (!ret)
                return -ETIMEDOUT;
 
        if (!session->ncontroller)
                return -ENODEV;
 
        if (session->ncontroller > 1)
                BT_INFO("Setting up only CAPI controller 1");
 
        session->ctrl.owner      = THIS_MODULE;
        session->ctrl.driverdata = session;
        strcpy(session->ctrl.name, session->name);
 
        session->ctrl.driver_name   = "cmtp";
        session->ctrl.load_firmware = cmtp_load_firmware;
        session->ctrl.reset_ctr     = cmtp_reset_ctr;
        session->ctrl.register_appl = cmtp_register_appl;
        session->ctrl.release_appl  = cmtp_release_appl;
        session->ctrl.send_message  = cmtp_send_message;
 
        session->ctrl.procinfo      = cmtp_procinfo;
        session->ctrl.ctr_read_proc = cmtp_ctr_read_proc;
 
        if (attach_capi_ctr(&session->ctrl) < 0) {
                BT_ERR("Can't attach new controller");
                return -EBUSY;
        }
 
        session->num = session->ctrl.cnr;
 
        BT_DBG("session %p num %d", session, session->num);
 
        capimsg_setu32(buf, 0, 1);
 
        cmtp_send_interopmsg(session, CAPI_REQ, 0xffff, cmtp_msgnum_get(session),
                                CAPI_FUNCTION_GET_MANUFACTURER, buf, 4);
 
        cmtp_send_interopmsg(session, CAPI_REQ, 0xffff, cmtp_msgnum_get(session),
                                CAPI_FUNCTION_GET_VERSION, buf, 4);
 
        cmtp_send_interopmsg(session, CAPI_REQ, 0xffff, cmtp_msgnum_get(session),
                                CAPI_FUNCTION_GET_SERIAL_NUMBER, buf, 4);
 
        cmtp_send_interopmsg(session, CAPI_REQ, 0xffff, cmtp_msgnum_get(session),
                                CAPI_FUNCTION_GET_PROFILE, buf, 4);
 
        return 0;
}
 
void cmtp_detach_device(struct cmtp_session *session)
{
        BT_DBG("session %p", session);
 
        detach_capi_ctr(&session->ctrl);
}

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Subversion Repositories or1k_soc_on_altera_embedded_dev_kit

[/] [or1k_soc_on_altera_embedded_dev_kit/] [trunk/] [linux-2.6/] [linux-2.6.24/] [net/] [bluetooth/] [cmtp/] [capi.c] - Blame information for rev 11

Line No.	Rev	Author	Line
1	3	xianfeng	`/*`
2			`CMTP implementation for Linux Bluetooth stack (BlueZ).`
3			`Copyright (C) 2002-2003 Marcel Holtmann <marcel@holtmann.org>`
4
5			`This program is free software; you can redistribute it and/or modify`
6			`it under the terms of the GNU General Public License version 2 as`
7			`published by the Free Software Foundation;`
8
9			`THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS`
10			`OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,`
11			`FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS.`
12			`IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) AND AUTHOR(S) BE LIABLE FOR ANY`
13			`CLAIM, OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES`
14			`WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN`
15			`ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF`
16			`OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.`
17
18			`ALL LIABILITY, INCLUDING LIABILITY FOR INFRINGEMENT OF ANY PATENTS,`
19			`COPYRIGHTS, TRADEMARKS OR OTHER RIGHTS, RELATING TO USE OF THIS`
20			`SOFTWARE IS DISCLAIMED.`
21			`*/`
22
23			`#include <linux/module.h>`
24
25			`#include <linux/types.h>`
26			`#include <linux/errno.h>`
27			`#include <linux/kernel.h>`
28			`#include <linux/sched.h>`
29			`#include <linux/slab.h>`
30			`#include <linux/poll.h>`
31			`#include <linux/fcntl.h>`
32			`#include <linux/skbuff.h>`
33			`#include <linux/socket.h>`
34			`#include <linux/ioctl.h>`
35			`#include <linux/file.h>`
36			`#include <linux/wait.h>`
37			`#include <net/sock.h>`
38
39			`#include <linux/isdn/capilli.h>`
40			`#include <linux/isdn/capicmd.h>`
41			`#include <linux/isdn/capiutil.h>`
42
43			`#include "cmtp.h"`
44
45			`#ifndef CONFIG_BT_CMTP_DEBUG`
46			`#undef BT_DBG`
47			`#define BT_DBG(D...)`
48			`#endif`
49
50			`#define CAPI_INTEROPERABILITY 0x20`
51
52			`#define CAPI_INTEROPERABILITY_REQ CAPICMD(CAPI_INTEROPERABILITY, CAPI_REQ)`
53			`#define CAPI_INTEROPERABILITY_CONF CAPICMD(CAPI_INTEROPERABILITY, CAPI_CONF)`
54			`#define CAPI_INTEROPERABILITY_IND CAPICMD(CAPI_INTEROPERABILITY, CAPI_IND)`
55			`#define CAPI_INTEROPERABILITY_RESP CAPICMD(CAPI_INTEROPERABILITY, CAPI_RESP)`
56
57			`#define CAPI_INTEROPERABILITY_REQ_LEN (CAPI_MSG_BASELEN + 2)`
58			`#define CAPI_INTEROPERABILITY_CONF_LEN (CAPI_MSG_BASELEN + 4)`
59			`#define CAPI_INTEROPERABILITY_IND_LEN (CAPI_MSG_BASELEN + 2)`
60			`#define CAPI_INTEROPERABILITY_RESP_LEN (CAPI_MSG_BASELEN + 2)`
61
62			`#define CAPI_FUNCTION_REGISTER 0`
63			`#define CAPI_FUNCTION_RELEASE 1`
64			`#define CAPI_FUNCTION_GET_PROFILE 2`
65			`#define CAPI_FUNCTION_GET_MANUFACTURER 3`
66			`#define CAPI_FUNCTION_GET_VERSION 4`
67			`#define CAPI_FUNCTION_GET_SERIAL_NUMBER 5`
68			`#define CAPI_FUNCTION_MANUFACTURER 6`
69			`#define CAPI_FUNCTION_LOOPBACK 7`
70
71
72			`#define CMTP_MSGNUM 1`
73			`#define CMTP_APPLID 2`
74			`#define CMTP_MAPPING 3`
75
76			`static struct cmtp_application cmtp_application_add(struct cmtp_session session, __u16 appl)`
77			`{`
78			`struct cmtp_application app = kzalloc(sizeof(app), GFP_KERNEL);`
79
80			`BT_DBG("session %p application %p appl %d", session, app, appl);`
81
82			`if (!app)`
83			`return NULL;`
84
85			`app->state = BT_OPEN;`
86			`app->appl = appl;`
87
88			`list_add_tail(&app->list, &session->applications);`
89
90			`return app;`
91			`}`
92
93			`static void cmtp_application_del(struct cmtp_session session, struct cmtp_application app)`
94			`{`
95			`BT_DBG("session %p application %p", session, app);`
96
97			`if (app) {`
98			`list_del(&app->list);`
99			`kfree(app);`
100			`}`
101			`}`
102
103			`static struct cmtp_application cmtp_application_get(struct cmtp_session session, int pattern, __u16 value)`
104			`{`
105			`struct cmtp_application *app;`
106			`struct list_head p, n;`
107
108			`list_for_each_safe(p, n, &session->applications) {`
109			`app = list_entry(p, struct cmtp_application, list);`
110			`switch (pattern) {`
111			`case CMTP_MSGNUM:`
112			`if (app->msgnum == value)`
113			`return app;`
114			`break;`
115			`case CMTP_APPLID:`
116			`if (app->appl == value)`
117			`return app;`
118			`break;`
119			`case CMTP_MAPPING:`
120			`if (app->mapping == value)`
121			`return app;`
122			`break;`
123			`}`
124			`}`
125
126			`return NULL;`
127			`}`
128
129			`static int cmtp_msgnum_get(struct cmtp_session *session)`
130			`{`
131			`session->msgnum++;`
132
133			`if ((session->msgnum & 0xff) > 200)`
134			`session->msgnum = CMTP_INITIAL_MSGNUM + 1;`
135
136			`return session->msgnum;`
137			`}`
138
139			`static void cmtp_send_capimsg(struct cmtp_session session, struct sk_buff skb)`
140			`{`
141			`struct cmtp_scb scb = (void ) skb->cb;`
142
143			`BT_DBG("session %p skb %p len %d", session, skb, skb->len);`
144
145			`scb->id = -1;`
146			`scb->data = (CAPIMSG_COMMAND(skb->data) == CAPI_DATA_B3);`
147
148			`skb_queue_tail(&session->transmit, skb);`
149
150			`cmtp_schedule(session);`
151			`}`
152
153			`static void cmtp_send_interopmsg(struct cmtp_session *session,`
154			`__u8 subcmd, __u16 appl, __u16 msgnum,`
155			`__u16 function, unsigned char *buf, int len)`
156			`{`
157			`struct sk_buff *skb;`
158			`unsigned char *s;`
159
160			`BT_DBG("session %p subcmd 0x%02x appl %d msgnum %d", session, subcmd, appl, msgnum);`
161
162			`if (!(skb = alloc_skb(CAPI_MSG_BASELEN + 6 + len, GFP_ATOMIC))) {`
163			`BT_ERR("Can't allocate memory for interoperability packet");`
164			`return;`
165			`}`
166
167			`s = skb_put(skb, CAPI_MSG_BASELEN + 6 + len);`
168
169			`capimsg_setu16(s, 0, CAPI_MSG_BASELEN + 6 + len);`
170			`capimsg_setu16(s, 2, appl);`
171			`capimsg_setu8 (s, 4, CAPI_INTEROPERABILITY);`
172			`capimsg_setu8 (s, 5, subcmd);`
173			`capimsg_setu16(s, 6, msgnum);`
174
175			`/* Interoperability selector (Bluetooth Device Management) */`
176			`capimsg_setu16(s, 8, 0x0001);`
177
178			`capimsg_setu8 (s, 10, 3 + len);`
179			`capimsg_setu16(s, 11, function);`
180			`capimsg_setu8 (s, 13, len);`
181
182			`if (len > 0)`
183			`memcpy(s + 14, buf, len);`
184
185			`cmtp_send_capimsg(session, skb);`
186			`}`
187
188			`static void cmtp_recv_interopmsg(struct cmtp_session session, struct sk_buff skb)`
189			`{`
190			`struct capi_ctr *ctrl = &session->ctrl;`
191			`struct cmtp_application *application;`
192			`__u16 appl, msgnum, func, info;`
193			`__u32 controller;`
194
195			`BT_DBG("session %p skb %p len %d", session, skb, skb->len);`
196
197			`switch (CAPIMSG_SUBCOMMAND(skb->data)) {`
198			`case CAPI_CONF:`
199			`if (skb->len < CAPI_MSG_BASELEN + 10)`
200			`break;`
201
202			`func = CAPIMSG_U16(skb->data, CAPI_MSG_BASELEN + 5);`
203			`info = CAPIMSG_U16(skb->data, CAPI_MSG_BASELEN + 8);`
204
205			`switch (func) {`
206			`case CAPI_FUNCTION_REGISTER:`
207			`msgnum = CAPIMSG_MSGID(skb->data);`
208
209			`application = cmtp_application_get(session, CMTP_MSGNUM, msgnum);`
210			`if (application) {`
211			`application->state = BT_CONNECTED;`
212			`application->msgnum = 0;`
213			`application->mapping = CAPIMSG_APPID(skb->data);`
214			`wake_up_interruptible(&session->wait);`
215			`}`
216
217			`break;`
218
219			`case CAPI_FUNCTION_RELEASE:`
220			`appl = CAPIMSG_APPID(skb->data);`
221
222			`application = cmtp_application_get(session, CMTP_MAPPING, appl);`
223			`if (application) {`
224			`application->state = BT_CLOSED;`
225			`application->msgnum = 0;`
226			`wake_up_interruptible(&session->wait);`
227			`}`
228
229			`break;`
230
231			`case CAPI_FUNCTION_GET_PROFILE:`
232			`if (skb->len < CAPI_MSG_BASELEN + 11 + sizeof(capi_profile))`
233			`break;`
234
235			`controller = CAPIMSG_U16(skb->data, CAPI_MSG_BASELEN + 11);`
236			`msgnum = CAPIMSG_MSGID(skb->data);`
237
238			`if (!info && (msgnum == CMTP_INITIAL_MSGNUM)) {`
239			`session->ncontroller = controller;`
240			`wake_up_interruptible(&session->wait);`
241			`break;`
242			`}`
243
244			`if (!info && ctrl) {`
245			`memcpy(&ctrl->profile,`
246			`skb->data + CAPI_MSG_BASELEN + 11,`
247			`sizeof(capi_profile));`
248			`session->state = BT_CONNECTED;`
249			`capi_ctr_ready(ctrl);`
250			`}`
251
252			`break;`
253
254			`case CAPI_FUNCTION_GET_MANUFACTURER:`
255			`if (skb->len < CAPI_MSG_BASELEN + 15)`
256			`break;`
257
258			`controller = CAPIMSG_U32(skb->data, CAPI_MSG_BASELEN + 10);`
259
260			`if (!info && ctrl) {`
261			`int len = min_t(uint, CAPI_MANUFACTURER_LEN,`
262			`skb->data[CAPI_MSG_BASELEN + 14]);`
263
264			`memset(ctrl->manu, 0, CAPI_MANUFACTURER_LEN);`
265			`strncpy(ctrl->manu,`
266			`skb->data + CAPI_MSG_BASELEN + 15, len);`
267			`}`
268
269			`break;`
270
271			`case CAPI_FUNCTION_GET_VERSION:`
272			`if (skb->len < CAPI_MSG_BASELEN + 32)`
273			`break;`
274
275			`controller = CAPIMSG_U32(skb->data, CAPI_MSG_BASELEN + 12);`
276
277			`if (!info && ctrl) {`
278			`ctrl->version.majorversion = CAPIMSG_U32(skb->data, CAPI_MSG_BASELEN + 16);`
279			`ctrl->version.minorversion = CAPIMSG_U32(skb->data, CAPI_MSG_BASELEN + 20);`
280			`ctrl->version.majormanuversion = CAPIMSG_U32(skb->data, CAPI_MSG_BASELEN + 24);`
281			`ctrl->version.minormanuversion = CAPIMSG_U32(skb->data, CAPI_MSG_BASELEN + 28);`
282			`}`
283
284			`break;`
285
286			`case CAPI_FUNCTION_GET_SERIAL_NUMBER:`
287			`if (skb->len < CAPI_MSG_BASELEN + 17)`
288			`break;`
289
290			`controller = CAPIMSG_U32(skb->data, CAPI_MSG_BASELEN + 12);`
291
292			`if (!info && ctrl) {`
293			`int len = min_t(uint, CAPI_SERIAL_LEN,`
294			`skb->data[CAPI_MSG_BASELEN + 16]);`
295
296			`memset(ctrl->serial, 0, CAPI_SERIAL_LEN);`
297			`strncpy(ctrl->serial,`
298			`skb->data + CAPI_MSG_BASELEN + 17, len);`
299			`}`
300
301			`break;`
302			`}`
303
304			`break;`
305
306			`case CAPI_IND:`
307			`if (skb->len < CAPI_MSG_BASELEN + 6)`
308			`break;`
309
310			`func = CAPIMSG_U16(skb->data, CAPI_MSG_BASELEN + 3);`
311
312			`if (func == CAPI_FUNCTION_LOOPBACK) {`
313			`int len = min_t(uint, skb->len - CAPI_MSG_BASELEN - 6,`
314			`skb->data[CAPI_MSG_BASELEN + 5]);`
315			`appl = CAPIMSG_APPID(skb->data);`
316			`msgnum = CAPIMSG_MSGID(skb->data);`
317			`cmtp_send_interopmsg(session, CAPI_RESP, appl, msgnum, func,`
318			`skb->data + CAPI_MSG_BASELEN + 6, len);`
319			`}`
320
321			`break;`
322			`}`
323
324			`kfree_skb(skb);`
325			`}`
326
327			`void cmtp_recv_capimsg(struct cmtp_session session, struct sk_buff skb)`
328			`{`
329			`struct capi_ctr *ctrl = &session->ctrl;`
330			`struct cmtp_application *application;`
331			`__u16 cmd, appl;`
332			`__u32 contr;`
333
334			`BT_DBG("session %p skb %p len %d", session, skb, skb->len);`
335
336			`if (skb->len < CAPI_MSG_BASELEN)`
337			`return;`
338
339			`if (CAPIMSG_COMMAND(skb->data) == CAPI_INTEROPERABILITY) {`
340			`cmtp_recv_interopmsg(session, skb);`
341			`return;`
342			`}`
343
344			`if (session->flags & (1 << CMTP_LOOPBACK)) {`
345			`kfree_skb(skb);`
346			`return;`
347			`}`
348
349			`cmd = CAPICMD(CAPIMSG_COMMAND(skb->data), CAPIMSG_SUBCOMMAND(skb->data));`
350			`appl = CAPIMSG_APPID(skb->data);`
351			`contr = CAPIMSG_CONTROL(skb->data);`
352
353			`application = cmtp_application_get(session, CMTP_MAPPING, appl);`
354			`if (application) {`
355			`appl = application->appl;`
356			`CAPIMSG_SETAPPID(skb->data, appl);`
357			`} else {`
358			`BT_ERR("Can't find application with id %d", appl);`
359			`kfree_skb(skb);`
360			`return;`
361			`}`
362
363			`if ((contr & 0x7f) == 0x01) {`
364			`contr = (contr & 0xffffff80) \| session->num;`
365			`CAPIMSG_SETCONTROL(skb->data, contr);`
366			`}`
367
368			`if (!ctrl) {`
369			`BT_ERR("Can't find controller %d for message", session->num);`
370			`kfree_skb(skb);`
371			`return;`
372			`}`
373
374			`capi_ctr_handle_message(ctrl, appl, skb);`
375			`}`
376
377			`static int cmtp_load_firmware(struct capi_ctr ctrl, capiloaddata data)`
378			`{`
379			`BT_DBG("ctrl %p data %p", ctrl, data);`
380
381			`return 0;`
382			`}`
383
384			`static void cmtp_reset_ctr(struct capi_ctr *ctrl)`
385			`{`
386			`struct cmtp_session *session = ctrl->driverdata;`
387
388			`BT_DBG("ctrl %p", ctrl);`
389
390			`capi_ctr_reseted(ctrl);`
391
392			`atomic_inc(&session->terminate);`
393			`cmtp_schedule(session);`
394			`}`
395
396			`static void cmtp_register_appl(struct capi_ctr ctrl, __u16 appl, capi_register_params rp)`
397			`{`
398			`DECLARE_WAITQUEUE(wait, current);`
399			`struct cmtp_session *session = ctrl->driverdata;`
400			`struct cmtp_application *application;`
401			`unsigned long timeo = CMTP_INTEROP_TIMEOUT;`
402			`unsigned char buf[8];`
403			`int err = 0, nconn, want = rp->level3cnt;`
404
405			`BT_DBG("ctrl %p appl %d level3cnt %d datablkcnt %d datablklen %d",`
406			`ctrl, appl, rp->level3cnt, rp->datablkcnt, rp->datablklen);`
407
408			`application = cmtp_application_add(session, appl);`
409			`if (!application) {`
410			`BT_ERR("Can't allocate memory for new application");`
411			`return;`
412			`}`
413
414			`if (want < 0)`
415			`nconn = ctrl->profile.nbchannel * -want;`
416			`else`
417			`nconn = want;`
418
419			`if (nconn == 0)`
420			`nconn = ctrl->profile.nbchannel;`
421
422			`capimsg_setu16(buf, 0, nconn);`
423			`capimsg_setu16(buf, 2, rp->datablkcnt);`
424			`capimsg_setu16(buf, 4, rp->datablklen);`
425
426			`application->state = BT_CONFIG;`
427			`application->msgnum = cmtp_msgnum_get(session);`
428
429			`cmtp_send_interopmsg(session, CAPI_REQ, 0x0000, application->msgnum,`
430			`CAPI_FUNCTION_REGISTER, buf, 6);`
431
432			`add_wait_queue(&session->wait, &wait);`
433			`while (1) {`
434			`set_current_state(TASK_INTERRUPTIBLE);`
435
436			`if (!timeo) {`
437			`err = -EAGAIN;`
438			`break;`
439			`}`
440
441			`if (application->state == BT_CLOSED) {`
442			`err = -application->err;`
443			`break;`
444			`}`
445
446			`if (application->state == BT_CONNECTED)`
447			`break;`
448
449			`if (signal_pending(current)) {`
450			`err = -EINTR;`
451			`break;`
452			`}`
453
454			`timeo = schedule_timeout(timeo);`
455			`}`
456			`set_current_state(TASK_RUNNING);`
457			`remove_wait_queue(&session->wait, &wait);`
458
459			`if (err) {`
460			`cmtp_application_del(session, application);`
461			`return;`
462			`}`
463			`}`
464
465			`static void cmtp_release_appl(struct capi_ctr *ctrl, __u16 appl)`
466			`{`
467			`struct cmtp_session *session = ctrl->driverdata;`
468			`struct cmtp_application *application;`
469
470			`BT_DBG("ctrl %p appl %d", ctrl, appl);`
471
472			`application = cmtp_application_get(session, CMTP_APPLID, appl);`
473			`if (!application) {`
474			`BT_ERR("Can't find application");`
475			`return;`
476			`}`
477
478			`application->msgnum = cmtp_msgnum_get(session);`
479
480			`cmtp_send_interopmsg(session, CAPI_REQ, application->mapping, application->msgnum,`
481			`CAPI_FUNCTION_RELEASE, NULL, 0);`
482
483			`wait_event_interruptible_timeout(session->wait,`
484			`(application->state == BT_CLOSED), CMTP_INTEROP_TIMEOUT);`
485
486			`cmtp_application_del(session, application);`
487			`}`
488
489			`static u16 cmtp_send_message(struct capi_ctr ctrl, struct sk_buff skb)`
490			`{`
491			`struct cmtp_session *session = ctrl->driverdata;`
492			`struct cmtp_application *application;`
493			`__u16 appl;`
494			`__u32 contr;`
495
496			`BT_DBG("ctrl %p skb %p", ctrl, skb);`
497
498			`appl = CAPIMSG_APPID(skb->data);`
499			`contr = CAPIMSG_CONTROL(skb->data);`
500
501			`application = cmtp_application_get(session, CMTP_APPLID, appl);`
502			`if ((!application) \|\| (application->state != BT_CONNECTED)) {`
503			`BT_ERR("Can't find application with id %d", appl);`
504			`return CAPI_ILLAPPNR;`
505			`}`
506
507			`CAPIMSG_SETAPPID(skb->data, application->mapping);`
508
509			`if ((contr & 0x7f) == session->num) {`
510			`contr = (contr & 0xffffff80) \| 0x01;`
511			`CAPIMSG_SETCONTROL(skb->data, contr);`
512			`}`
513
514			`cmtp_send_capimsg(session, skb);`
515
516			`return CAPI_NOERROR;`
517			`}`
518
519			`static char cmtp_procinfo(struct capi_ctr ctrl)`
520			`{`
521			`return "CAPI Message Transport Protocol";`
522			`}`
523
524			`static int cmtp_ctr_read_proc(char page, char start, off_t off, int count, int eof, struct capi_ctr *ctrl)`
525			`{`
526			`struct cmtp_session *session = ctrl->driverdata;`
527			`struct cmtp_application *app;`
528			`struct list_head p, n;`
529			`int len = 0;`
530
531			`len += sprintf(page + len, "%s\n\n", cmtp_procinfo(ctrl));`
532			`len += sprintf(page + len, "addr %s\n", session->name);`
533			`len += sprintf(page + len, "ctrl %d\n", session->num);`
534
535			`list_for_each_safe(p, n, &session->applications) {`
536			`app = list_entry(p, struct cmtp_application, list);`
537			`len += sprintf(page + len, "appl %d -> %d\n", app->appl, app->mapping);`
538			`}`
539
540			`if (off + count >= len)`
541			`*eof = 1;`
542
543			`if (len < off)`
544			`return 0;`
545
546			`*start = page + off;`
547
548			`return ((count < len - off) ? count : len - off);`
549			`}`
550
551
552			`int cmtp_attach_device(struct cmtp_session *session)`
553			`{`
554			`unsigned char buf[4];`
555			`long ret;`
556
557			`BT_DBG("session %p", session);`
558
559			`capimsg_setu32(buf, 0, 0);`
560
561			`cmtp_send_interopmsg(session, CAPI_REQ, 0xffff, CMTP_INITIAL_MSGNUM,`
562			`CAPI_FUNCTION_GET_PROFILE, buf, 4);`
563
564			`ret = wait_event_interruptible_timeout(session->wait,`
565			`session->ncontroller, CMTP_INTEROP_TIMEOUT);`
566
567			`BT_INFO("Found %d CAPI controller(s) on device %s", session->ncontroller, session->name);`
568
569			`if (!ret)`
570			`return -ETIMEDOUT;`
571
572			`if (!session->ncontroller)`
573			`return -ENODEV;`
574
575			`if (session->ncontroller > 1)`
576			`BT_INFO("Setting up only CAPI controller 1");`
577
578			`session->ctrl.owner = THIS_MODULE;`
579			`session->ctrl.driverdata = session;`
580			`strcpy(session->ctrl.name, session->name);`
581
582			`session->ctrl.driver_name = "cmtp";`
583			`session->ctrl.load_firmware = cmtp_load_firmware;`
584			`session->ctrl.reset_ctr = cmtp_reset_ctr;`
585			`session->ctrl.register_appl = cmtp_register_appl;`
586			`session->ctrl.release_appl = cmtp_release_appl;`
587			`session->ctrl.send_message = cmtp_send_message;`
588
589			`session->ctrl.procinfo = cmtp_procinfo;`
590			`session->ctrl.ctr_read_proc = cmtp_ctr_read_proc;`
591
592			`if (attach_capi_ctr(&session->ctrl) < 0) {`
593			`BT_ERR("Can't attach new controller");`
594			`return -EBUSY;`
595			`}`
596
597			`session->num = session->ctrl.cnr;`
598
599			`BT_DBG("session %p num %d", session, session->num);`
600
601			`capimsg_setu32(buf, 0, 1);`
602
603			`cmtp_send_interopmsg(session, CAPI_REQ, 0xffff, cmtp_msgnum_get(session),`
604			`CAPI_FUNCTION_GET_MANUFACTURER, buf, 4);`
605
606			`cmtp_send_interopmsg(session, CAPI_REQ, 0xffff, cmtp_msgnum_get(session),`
607			`CAPI_FUNCTION_GET_VERSION, buf, 4);`
608
609			`cmtp_send_interopmsg(session, CAPI_REQ, 0xffff, cmtp_msgnum_get(session),`
610			`CAPI_FUNCTION_GET_SERIAL_NUMBER, buf, 4);`
611
612			`cmtp_send_interopmsg(session, CAPI_REQ, 0xffff, cmtp_msgnum_get(session),`
613			`CAPI_FUNCTION_GET_PROFILE, buf, 4);`
614
615			`return 0;`
616			`}`
617
618			`void cmtp_detach_device(struct cmtp_session *session)`
619			`{`
620			`BT_DBG("session %p", session);`
621
622			`detach_capi_ctr(&session->ctrl);`
623			`}`