2014-03-26 14:53:46

by Ravi kumar Veeramally

Subject: [PATCH] android: Add initial MCAP common code

The patch keeps all MCAP specific logic in mcap-lib until it receives
proper unit tests and then eventually will be used by health profile
code as well.
---
android/Android.mk | 3 +-
android/Makefile.am | 3 +-
android/mcap-lib.c | 3161 +++++++++++++++++++++++++++++++++++++++++++++++++++
android/mcap-lib.h | 439 +++++++
4 files changed, 3604 insertions(+), 2 deletions(-)
create mode 100644 android/mcap-lib.c
create mode 100644 android/mcap-lib.h

diff --git a/android/Android.mk b/android/Android.mk
index 0e0932d..a2083a7 100644
--- a/android/Android.mk
+++ b/android/Android.mk
@@ -66,7 +66,8 @@ LOCAL_SRC_FILES := \
bluez/profiles/network/bnep.c \
bluez/attrib/gattrib.c \
bluez/attrib/gatt.c \
- bluez/attrib/att.c
+ bluez/attrib/att.c \
+ bluez/android/mcap-lib.c

LOCAL_C_INCLUDES := \
$(call include-path-for, glib) \
diff --git a/android/Makefile.am b/android/Makefile.am
index 58ee3c9..3268034 100644
--- a/android/Makefile.am
+++ b/android/Makefile.am
@@ -48,7 +48,8 @@ android_bluetoothd_SOURCES = android/main.c \
attrib/gattrib.c attrib/gattrib.h \
btio/btio.h btio/btio.c \
src/sdp-client.h src/sdp-client.c \
- profiles/network/bnep.h profiles/network/bnep.c
+ profiles/network/bnep.h profiles/network/bnep.c \
+ android/mcap-lib.h android/mcap-lib.c

android_bluetoothd_LDADD = lib/libbluetooth-internal.la @GLIB_LIBS@

diff --git a/android/mcap-lib.c b/android/mcap-lib.c
new file mode 100644
index 0000000..c7e212f
--- /dev/null
+++ b/android/mcap-lib.c
@@ -0,0 +1,3161 @@
+/*
+ *
+ * BlueZ - Bluetooth protocol stack for Linux
+ *
+ * Copyright (C) 2014 Intel Corporation. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ *
+ */
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include <netinet/in.h>
+#include <stdlib.h>
+#include <errno.h>
+#include <unistd.h>
+
+#include <glib.h>
+
+#include "lib/bluetooth.h"
+#include "bluetooth/l2cap.h"
+#include "btio/btio.h"
+#include "src/log.h"
+#include "src/error.h"
+
+#include "mcap-lib.h"
+
+#define MCAP_BTCLOCK_HALF (MCAP_BTCLOCK_FIELD / 2)
+#define CLK CLOCK_MONOTONIC
+
+#define MCAP_CSP_ERROR g_quark_from_static_string("mcap-csp-error-quark")
+#define MAX_RETRIES 10
+#define SAMPLE_COUNT 20
+
+#define RESPONSE_TIMER 6 /* seconds */
+#define MAX_CACHED 10 /* 10 devices */
+
+#define MCAP_ERROR g_quark_from_static_string("mcap-error-quark")
+
+#define RELEASE_TIMER(__mcl) do { \
+ if (__mcl->tid) { \
+ g_source_remove(__mcl->tid); \
+ __mcl->tid = 0; \
+ } \
+} while(0)
+
+struct mcap_csp {
+ uint64_t base_tmstamp; /* CSP base timestamp */
+ struct timespec base_time; /* CSP base time when timestamp set */
+ guint local_caps; /* CSP-Master: have got remote caps */
+ guint remote_caps; /* CSP-Slave: remote master got caps */
+ guint rem_req_acc; /* CSP-Slave: accuracy required by master */
+ guint ind_expected; /* CSP-Master: indication expected */
+ uint8_t csp_req; /* CSP-Master: Request control flag */
+ guint ind_timer; /* CSP-Slave: indication timer */
+ guint set_timer; /* CSP-Slave: delayed set timer */
+ void *set_data; /* CSP-Slave: delayed set data */
+ void *csp_priv_data; /* CSP-Master: In-flight request data */
+};
+
+struct mcap_sync_cap_cbdata {
+ mcap_sync_cap_cb cb;
+ gpointer user_data;
+};
+
+struct mcap_sync_set_cbdata {
+ mcap_sync_set_cb cb;
+ gpointer user_data;
+};
+
+struct csp_caps {
+ int ts_acc; /* timestamp accuracy */
+ int ts_res; /* timestamp resolution */
+ int latency; /* Read BT clock latency */
+ int preempt_thresh; /* Preemption threshold for latency */
+ int syncleadtime_ms; /* SyncLeadTime in ms */
+};
+
+struct sync_set_data {
+ uint8_t update;
+ uint32_t sched_btclock;
+ uint64_t timestamp;
+ int ind_freq;
+ gboolean role;
+};
+
+struct connect_mcl {
+ struct mcap_mcl *mcl; /* MCL for this operation */
+ mcap_mcl_connect_cb connect_cb; /* Connect callback */
+ GDestroyNotify destroy; /* Destroy callback */
+ gpointer user_data; /* Callback user data */
+};
+
+typedef union {
+ mcap_mdl_operation_cb op;
+ mcap_mdl_operation_conf_cb op_conf;
+ mcap_mdl_notify_cb notify;
+} mcap_cb_type;
+
+struct mcap_mdl_op_cb {
+ struct mcap_mdl *mdl; /* MDL for this operation */
+ mcap_cb_type cb; /* Operation callback */
+ GDestroyNotify destroy; /* Destroy callback */
+ gpointer user_data; /* Callback user data */
+};
+
+/* MCAP finite state machine functions */
+static void proc_req_connected(struct mcap_mcl *mcl, uint8_t *cmd, uint32_t l);
+static void proc_req_pending(struct mcap_mcl *mcl, uint8_t *cmd, uint32_t l);
+static void proc_req_active(struct mcap_mcl *mcl, uint8_t *cmd, uint32_t l);
+
+static void (*proc_req[])(struct mcap_mcl *mcl, uint8_t *cmd, uint32_t len) = {
+ proc_req_connected,
+ proc_req_pending,
+ proc_req_active
+};
+
+static gboolean csp_caps_initialized = FALSE;
+struct csp_caps _caps;
+
+static void mcap_cache_mcl(struct mcap_mcl *mcl);
+
+static void default_mdl_connected_cb(struct mcap_mdl *mdl, gpointer data)
+{
+ DBG("MCAP Unmanaged mdl connection");
+}
+
+static void default_mdl_closed_cb(struct mcap_mdl *mdl, gpointer data)
+{
+ DBG("MCAP Unmanaged mdl closed");
+}
+
+static void default_mdl_deleted_cb(struct mcap_mdl *mdl, gpointer data)
+{
+ DBG("MCAP Unmanaged mdl deleted");
+}
+
+static void default_mdl_aborted_cb(struct mcap_mdl *mdl, gpointer data)
+{
+ DBG("MCAP Unmanaged mdl aborted");
+}
+
+static uint8_t default_mdl_conn_req_cb(struct mcap_mcl *mcl,
+ uint8_t mdepid, uint16_t mdlid,
+ uint8_t *conf, gpointer data)
+{
+ DBG("MCAP mdl remote connection aborted");
+ /* Due to this callback isn't managed this request won't be supported */
+ return MCAP_REQUEST_NOT_SUPPORTED;
+}
+
+static uint8_t default_mdl_reconn_req_cb(struct mcap_mdl *mdl,
+ gpointer data)
+{
+ DBG("MCAP mdl remote reconnection aborted");
+ /* Due to this callback isn't managed this request won't be supported */
+ return MCAP_REQUEST_NOT_SUPPORTED;
+}
+
+static void set_default_cb(struct mcap_mcl *mcl)
+{
+ if (!mcl->cb)
+ mcl->cb = g_new0(struct mcap_mdl_cb, 1);
+
+ mcl->cb->mdl_connected = default_mdl_connected_cb;
+ mcl->cb->mdl_closed = default_mdl_closed_cb;
+ mcl->cb->mdl_deleted = default_mdl_deleted_cb;
+ mcl->cb->mdl_aborted = default_mdl_aborted_cb;
+ mcl->cb->mdl_conn_req = default_mdl_conn_req_cb;
+ mcl->cb->mdl_reconn_req = default_mdl_reconn_req_cb;
+}
+
+static char *error2str(uint8_t rc)
+{
+ switch (rc) {
+ case MCAP_SUCCESS:
+ return "Success";
+ case MCAP_INVALID_OP_CODE:
+ return "Invalid Op Code";
+ case MCAP_INVALID_PARAM_VALUE:
+ return "Invalid Parameter Value";
+ case MCAP_INVALID_MDEP:
+ return "Invalid MDEP";
+ case MCAP_MDEP_BUSY:
+ return "MDEP Busy";
+ case MCAP_INVALID_MDL:
+ return "Invalid MDL";
+ case MCAP_MDL_BUSY:
+ return "MDL Busy";
+ case MCAP_INVALID_OPERATION:
+ return "Invalid Operation";
+ case MCAP_RESOURCE_UNAVAILABLE:
+ return "Resource Unavailable";
+ case MCAP_UNSPECIFIED_ERROR:
+ return "Unspecified Error";
+ case MCAP_REQUEST_NOT_SUPPORTED:
+ return "Request Not Supported";
+ case MCAP_CONFIGURATION_REJECTED:
+ return "Configuration Rejected";
+ default:
+ return "Unknown Response Code";
+ }
+}
+
+static gboolean mcap_send_std_opcode(struct mcap_mcl *mcl, void *cmd,
+ uint32_t size, GError **err)
+{
+ if (mcl->state == MCL_IDLE) {
+ g_set_error(err, MCAP_ERROR, MCAP_ERROR_FAILED,
+ "MCL is not connected");
+ return FALSE;
+ }
+
+ if (mcl->req != MCL_AVAILABLE) {
+ g_set_error(err, MCAP_ERROR, MCAP_ERROR_RESOURCE_UNAVAILABLE,
+ "Pending request");
+ return FALSE;
+ }
+
+ if (!(mcl->ctrl & MCAP_CTRL_STD_OP)) {
+ g_set_error(err, MCAP_ERROR, MCAP_ERROR_REQUEST_NOT_SUPPORTED,
+ "Remote does not support standard opcodes");
+ return FALSE;
+ }
+
+ if (mcl->state == MCL_PENDING) {
+ g_set_error(err, MCAP_ERROR, MCAP_ERROR_INVALID_OPERATION,
+ "Not Std Op. Codes can be sent in PENDING State");
+ return FALSE;
+ }
+
+ if (mcap_send_data(g_io_channel_unix_get_fd(mcl->cc), cmd, size) < 0) {
+ g_set_error(err, MCAP_ERROR, MCAP_ERROR_FAILED,
+ "Command can't be sent, write error");
+ return FALSE;
+ }
+
+ mcl->lcmd = cmd;
+ mcl->req = MCL_WAITING_RSP;
+
+ return TRUE;
+}
+
+static void update_mcl_state(struct mcap_mcl *mcl)
+{
+ GSList *l;
+ struct mcap_mdl *mdl;
+
+ if (mcl->state == MCL_PENDING)
+ return;
+
+ for (l = mcl->mdls; l; l = l->next) {
+ mdl = l->data;
+
+ if (mdl->state == MDL_CONNECTED) {
+ mcl->state = MCL_ACTIVE;
+ return;
+ }
+ }
+
+ mcl->state = MCL_CONNECTED;
+}
+
+static void shutdown_mdl(struct mcap_mdl *mdl)
+{
+ mdl->state = MDL_CLOSED;
+
+ if (mdl->wid) {
+ g_source_remove(mdl->wid);
+ mdl->wid = 0;
+ }
+
+ if (mdl->dc) {
+ g_io_channel_shutdown(mdl->dc, TRUE, NULL);
+ g_io_channel_unref(mdl->dc);
+ mdl->dc = NULL;
+ }
+}
+
+static void free_mdl(struct mcap_mdl *mdl)
+{
+ if (!mdl)
+ return;
+
+ mcap_mcl_unref(mdl->mcl);
+ g_free(mdl);
+}
+
+static int cmp_mdl_state(gconstpointer a, gconstpointer b)
+{
+ const struct mcap_mdl *mdl = a;
+ const MDLState *st = b;
+
+ if (mdl->state == *st)
+ return 0;
+ else if (mdl->state < *st)
+ return -1;
+ else
+ return 1;
+}
+
+static void free_mcap_mdl_op(struct mcap_mdl_op_cb *op)
+{
+ if (op->destroy)
+ op->destroy(op->user_data);
+
+ if (op->mdl)
+ mcap_mdl_unref(op->mdl);
+
+ g_free(op);
+}
+
+static void free_mcl_priv_data(struct mcap_mcl *mcl)
+{
+ free_mcap_mdl_op(mcl->priv_data);
+ mcl->priv_data = NULL;
+}
+
+static void mcap_notify_error(struct mcap_mcl *mcl, GError *err)
+{
+ struct mcap_mdl_op_cb *con = mcl->priv_data;
+ struct mcap_mdl *mdl;
+ MDLState st;
+ GSList *l;
+
+ if (!con || !mcl->lcmd)
+ return;
+
+ switch (mcl->lcmd[0]) {
+ case MCAP_MD_CREATE_MDL_REQ:
+ st = MDL_WAITING;
+ l = g_slist_find_custom(mcl->mdls, &st, cmp_mdl_state);
+ mdl = l->data;
+ mcl->mdls = g_slist_remove(mcl->mdls, mdl);
+ mcap_mdl_unref(mdl);
+ update_mcl_state(mcl);
+ con->cb.op_conf(NULL, 0, err, con->user_data);
+ break;
+ case MCAP_MD_ABORT_MDL_REQ:
+ st = MDL_WAITING;
+ l = g_slist_find_custom(mcl->mdls, &st, cmp_mdl_state);
+ shutdown_mdl(l->data);
+ update_mcl_state(mcl);
+ con->cb.notify(err, con->user_data);
+ break;
+ case MCAP_MD_DELETE_MDL_REQ:
+ for (l = mcl->mdls; l; l = l->next) {
+ mdl = l->data;
+ if (mdl->state == MDL_DELETING)
+ mdl->state = (mdl->dc) ? MDL_CONNECTED :
+ MDL_CLOSED;
+ }
+ update_mcl_state(mcl);
+ con->cb.notify(err, con->user_data);
+ break;
+ case MCAP_MD_RECONNECT_MDL_REQ:
+ st = MDL_WAITING;
+ l = g_slist_find_custom(mcl->mdls, &st, cmp_mdl_state);
+ shutdown_mdl(l->data);
+ update_mcl_state(mcl);
+ con->cb.op(NULL, err, con->user_data);
+ break;
+ }
+
+ free_mcl_priv_data(mcl);
+ g_free(mcl->lcmd);
+ mcl->lcmd = NULL;
+}
+
+int mcap_send_data(int sock, const void *buf, uint32_t size)
+{
+ const uint8_t *buf_b = buf;
+ uint32_t sent = 0;
+
+ while (sent < size) {
+ int n = write(sock, buf_b + sent, size - sent);
+ if (n < 0)
+ return -1;
+ sent += n;
+ }
+
+ return 0;
+}
+
+static int mcap_send_cmd(struct mcap_mcl *mcl, uint8_t oc, uint8_t rc,
+ uint16_t mdl, uint8_t *data, size_t len)
+{
+ mcap_rsp *cmd;
+ int sock, sent;
+
+ if (mcl->cc == NULL)
+ return -1;
+
+ sock = g_io_channel_unix_get_fd(mcl->cc);
+
+ cmd = g_malloc(sizeof(mcap_rsp) + len);
+ cmd->op = oc;
+ cmd->rc = rc;
+ cmd->mdl = htons(mdl);
+
+ if (data && len > 0)
+ memcpy(cmd->data, data, len);
+
+ sent = mcap_send_data(sock, cmd, sizeof(mcap_rsp) + len);
+ g_free(cmd);
+
+ return sent;
+}
+
+static struct mcap_mdl *get_mdl(struct mcap_mcl *mcl, uint16_t mdlid)
+{
+ GSList *l;
+ struct mcap_mdl *mdl;
+
+ for (l = mcl->mdls; l; l = l->next) {
+ mdl = l->data;
+ if (mdlid == mdl->mdlid)
+ return mdl;
+ }
+
+ return NULL;
+}
+
+static uint16_t generate_mdlid(struct mcap_mcl *mcl)
+{
+ uint16_t mdlid = mcl->next_mdl;
+ struct mcap_mdl *mdl;
+
+ do {
+ mdl = get_mdl(mcl, mdlid);
+ if (!mdl) {
+ mcl->next_mdl = (mdlid % MCAP_MDLID_FINAL) + 1;
+ return mdlid;
+ } else
+ mdlid = (mdlid % MCAP_MDLID_FINAL) + 1;
+ } while (mdlid != mcl->next_mdl);
+
+ /* No more mdlids availables */
+ return 0;
+}
+
+static mcap_md_req *create_req(uint8_t op, uint16_t mdl_id)
+{
+ mcap_md_req *req_cmd;
+
+ req_cmd = g_new0(mcap_md_req, 1);
+
+ req_cmd->op = op;
+ req_cmd->mdl = htons(mdl_id);
+
+ return req_cmd;
+}
+
+static mcap_md_create_mdl_req *create_mdl_req(uint16_t mdl_id, uint8_t mdep,
+ uint8_t conf)
+{
+ mcap_md_create_mdl_req *req_mdl;
+
+ req_mdl = g_new0(mcap_md_create_mdl_req, 1);
+
+ req_mdl->op = MCAP_MD_CREATE_MDL_REQ;
+ req_mdl->mdl = htons(mdl_id);
+ req_mdl->mdep = mdep;
+ req_mdl->conf = conf;
+
+ return req_mdl;
+}
+
+static int compare_mdl(gconstpointer a, gconstpointer b)
+{
+ const struct mcap_mdl *mdla = a;
+ const struct mcap_mdl *mdlb = b;
+
+ if (mdla->mdlid == mdlb->mdlid)
+ return 0;
+ else if (mdla->mdlid < mdlb->mdlid)
+ return -1;
+ else
+ return 1;
+}
+
+static gboolean wait_response_timer(gpointer data)
+{
+ struct mcap_mcl *mcl = data;
+
+ GError *gerr = NULL;
+
+ RELEASE_TIMER(mcl);
+
+ g_set_error(&gerr, MCAP_ERROR, MCAP_ERROR_FAILED,
+ "Timeout waiting response");
+
+ mcap_notify_error(mcl, gerr);
+
+ g_error_free(gerr);
+ mcl->mi->mcl_disconnected_cb(mcl, mcl->mi->user_data);
+ mcap_cache_mcl(mcl);
+
+ return FALSE;
+}
+
+gboolean mcap_create_mdl(struct mcap_mcl *mcl,
+ uint8_t mdepid,
+ uint8_t conf,
+ mcap_mdl_operation_conf_cb connect_cb,
+ gpointer user_data,
+ GDestroyNotify destroy,
+ GError **err)
+{
+ struct mcap_mdl *mdl;
+ struct mcap_mdl_op_cb *con;
+ mcap_md_create_mdl_req *cmd;
+ uint16_t id;
+
+ id = generate_mdlid(mcl);
+ if (!id) {
+ g_set_error(err, MCAP_ERROR, MCAP_ERROR_FAILED,
+ "Not more mdlids available");
+ return FALSE;
+ }
+
+ mdl = g_new0(struct mcap_mdl, 1);
+ mdl->mcl = mcap_mcl_ref(mcl);
+ mdl->mdlid = id;
+ mdl->mdep_id = mdepid;
+ mdl->state = MDL_WAITING;
+
+ con = g_new0(struct mcap_mdl_op_cb, 1);
+ con->mdl = mcap_mdl_ref(mdl);
+ con->cb.op_conf = connect_cb;
+ con->destroy = destroy;
+ con->user_data = user_data;
+
+ cmd = create_mdl_req(id, mdepid, conf);
+ if (!mcap_send_std_opcode(mcl, cmd, sizeof(mcap_md_create_mdl_req),
+ err)) {
+ mcap_mdl_unref(con->mdl);
+ g_free(con);
+ g_free(cmd);
+ return FALSE;
+ }
+
+ mcl->state = MCL_ACTIVE;
+ mcl->priv_data = con;
+
+ mcl->mdls = g_slist_insert_sorted(mcl->mdls, mcap_mdl_ref(mdl),
+ compare_mdl);
+ mcl->tid = g_timeout_add_seconds(RESPONSE_TIMER, wait_response_timer,
+ mcl);
+ return TRUE;
+}
+
+gboolean mcap_reconnect_mdl(struct mcap_mdl *mdl,
+ mcap_mdl_operation_cb reconnect_cb,
+ gpointer user_data,
+ GDestroyNotify destroy,
+ GError **err)
+{
+ struct mcap_mdl_op_cb *con;
+ struct mcap_mcl *mcl = mdl->mcl;
+ mcap_md_req *cmd;
+
+ if (mdl->state != MDL_CLOSED) {
+ g_set_error(err, MCAP_ERROR, MCAP_ERROR_FAILED,
+ "MDL is not closed");
+ return FALSE;
+ }
+
+ cmd = create_req(MCAP_MD_RECONNECT_MDL_REQ, mdl->mdlid);
+ if (!mcap_send_std_opcode(mcl, cmd, sizeof(mcap_md_req), err)) {
+ g_free(cmd);
+ return FALSE;
+ }
+
+ mdl->state = MDL_WAITING;
+
+ con = g_new0(struct mcap_mdl_op_cb, 1);
+ con->mdl = mcap_mdl_ref(mdl);
+ con->cb.op = reconnect_cb;
+ con->destroy = destroy;
+ con->user_data = user_data;
+
+ mcl->state = MCL_ACTIVE;
+ mcl->priv_data = con;
+
+ mcl->tid = g_timeout_add_seconds(RESPONSE_TIMER, wait_response_timer,
+ mcl);
+ return TRUE;
+}
+
+static gboolean send_delete_req(struct mcap_mcl *mcl,
+ struct mcap_mdl_op_cb *con,
+ uint16_t mdlid,
+ GError **err)
+{
+ mcap_md_req *cmd;
+
+ cmd = create_req(MCAP_MD_DELETE_MDL_REQ, mdlid);
+ if (!mcap_send_std_opcode(mcl, cmd, sizeof(mcap_md_req), err)) {
+ g_free(cmd);
+ return FALSE;
+ }
+
+ mcl->priv_data = con;
+
+ mcl->tid = g_timeout_add_seconds(RESPONSE_TIMER, wait_response_timer,
+ mcl);
+ return TRUE;
+}
+
+gboolean mcap_delete_all_mdls(struct mcap_mcl *mcl,
+ mcap_mdl_notify_cb delete_cb,
+ gpointer user_data,
+ GDestroyNotify destroy,
+ GError **err)
+{
+ GSList *l;
+ struct mcap_mdl *mdl;
+ struct mcap_mdl_op_cb *con;
+
+ DBG("MCL in state: %d", mcl->state);
+ if (!mcl->mdls) {
+ g_set_error(err, MCAP_ERROR, MCAP_ERROR_FAILED,
+ "There are not MDLs created");
+ return FALSE;
+ }
+
+ for (l = mcl->mdls; l; l = l->next) {
+ mdl = l->data;
+ if (mdl->state != MDL_WAITING)
+ mdl->state = MDL_DELETING;
+ }
+
+ con = g_new0(struct mcap_mdl_op_cb, 1);
+ con->mdl = NULL;
+ con->cb.notify = delete_cb;
+ con->destroy = destroy;
+ con->user_data = user_data;
+
+
+ if (!send_delete_req(mcl, con, MCAP_ALL_MDLIDS, err)) {
+ g_free(con);
+ return FALSE;
+ }
+
+ return TRUE;
+}
+
+gboolean mcap_delete_mdl(struct mcap_mdl *mdl, mcap_mdl_notify_cb delete_cb,
+ gpointer user_data,
+ GDestroyNotify destroy,
+ GError **err)
+{
+ struct mcap_mcl *mcl= mdl->mcl;
+ struct mcap_mdl_op_cb *con;
+ GSList *l;
+
+ l = g_slist_find(mcl->mdls, mdl);
+
+ if (!l) {
+ g_set_error(err, MCAP_ERROR, MCAP_ERROR_INVALID_MDL,
+ "%s" , error2str(MCAP_INVALID_MDEP));
+ return FALSE;
+ }
+
+ if (mdl->state == MDL_WAITING) {
+ g_set_error(err, MCAP_ERROR, MCAP_ERROR_FAILED,
+ "Mdl is not created");
+ return FALSE;
+ }
+
+ mdl->state = MDL_DELETING;
+
+ con = g_new0(struct mcap_mdl_op_cb, 1);
+ con->mdl = mcap_mdl_ref(mdl);
+ con->cb.notify = delete_cb;
+ con->destroy = destroy;
+ con->user_data = user_data;
+
+ if (!send_delete_req(mcl, con, mdl->mdlid, err)) {
+ mcap_mdl_unref(con->mdl);
+ g_free(con);
+ return FALSE;
+ }
+
+ return TRUE;
+}
+
+gboolean mcap_mdl_abort(struct mcap_mdl *mdl, mcap_mdl_notify_cb abort_cb,
+ gpointer user_data,
+ GDestroyNotify destroy,
+ GError **err)
+{
+ struct mcap_mdl_op_cb *con;
+ struct mcap_mcl *mcl = mdl->mcl;
+ mcap_md_req *cmd;
+
+ if (mdl->state != MDL_WAITING) {
+ g_set_error(err, MCAP_ERROR, MCAP_ERROR_FAILED,
+ "Mdl in invalid state");
+ return FALSE;
+ }
+
+ cmd = create_req(MCAP_MD_ABORT_MDL_REQ, mdl->mdlid);
+ if (!mcap_send_std_opcode(mcl, cmd, sizeof(mcap_md_req), err)) {
+ g_free(cmd);
+ return FALSE;
+ }
+
+ con = g_new0(struct mcap_mdl_op_cb, 1);
+ con->mdl = mcap_mdl_ref(mdl);
+ con->cb.notify = abort_cb;
+ con->destroy = destroy;
+ con->user_data = user_data;
+
+ mcl->priv_data = con;
+ mcl->tid = g_timeout_add_seconds(RESPONSE_TIMER, wait_response_timer,
+ mcl);
+ return TRUE;
+}
+
+static struct mcap_mcl *find_mcl(GSList *list, const bdaddr_t *addr)
+{
+ struct mcap_mcl *mcl;
+
+ for (; list; list = list->next) {
+ mcl = list->data;
+
+ if (!bacmp(&mcl->addr, addr))
+ return mcl;
+ }
+
+ return NULL;
+}
+
+int mcap_mdl_get_fd(struct mcap_mdl *mdl)
+{
+ if (!mdl || mdl->state != MDL_CONNECTED)
+ return -ENOTCONN;
+
+ return g_io_channel_unix_get_fd(mdl->dc);
+}
+
+uint16_t mcap_mdl_get_mdlid(struct mcap_mdl *mdl)
+{
+ if (!mdl)
+ return MCAP_MDLID_RESERVED;
+
+ return mdl->mdlid;
+}
+
+static void close_mcl(struct mcap_mcl *mcl, gboolean cache_requested)
+{
+ gboolean save = ((!(mcl->ctrl & MCAP_CTRL_FREE)) && cache_requested);
+
+ RELEASE_TIMER(mcl);
+
+ if (mcl->cc) {
+ g_io_channel_shutdown(mcl->cc, TRUE, NULL);
+ g_io_channel_unref(mcl->cc);
+ mcl->cc = NULL;
+ }
+
+ if (mcl->wid) {
+ g_source_remove(mcl->wid);
+ mcl->wid = 0;
+ }
+
+ if (mcl->lcmd) {
+ g_free(mcl->lcmd);
+ mcl->lcmd = NULL;
+ }
+
+ if (mcl->priv_data)
+ free_mcl_priv_data(mcl);
+
+ g_slist_foreach(mcl->mdls, (GFunc) shutdown_mdl, NULL);
+
+ mcap_sync_stop(mcl);
+
+ mcl->state = MCL_IDLE;
+
+ if (save)
+ return;
+
+ g_slist_foreach(mcl->mdls, (GFunc) mcap_mdl_unref, NULL);
+ g_slist_free(mcl->mdls);
+ mcl->mdls = NULL;
+}
+
+static void mcap_mcl_shutdown(struct mcap_mcl *mcl)
+{
+ close_mcl(mcl, TRUE);
+}
+
+static void mcap_mcl_release(struct mcap_mcl *mcl)
+{
+ close_mcl(mcl, FALSE);
+}
+
+static void mcap_cache_mcl(struct mcap_mcl *mcl)
+{
+ GSList *l;
+ struct mcap_mcl *last;
+ int len;
+
+ if (mcl->ctrl & MCAP_CTRL_CACHED)
+ return;
+
+ mcl->mi->mcls = g_slist_remove(mcl->mi->mcls, mcl);
+
+ if (mcl->ctrl & MCAP_CTRL_NOCACHE) {
+ mcl->mi->cached = g_slist_remove(mcl->mi->cached, mcl);
+ mcap_mcl_release(mcl);
+ mcap_mcl_unref(mcl);
+ return;
+ }
+
+ DBG("Caching MCL");
+
+ len = g_slist_length(mcl->mi->cached);
+ if (len == MAX_CACHED) {
+ /* Remove the latest cached mcl */
+ l = g_slist_last(mcl->mi->cached);
+ last = l->data;
+ mcl->mi->cached = g_slist_remove(mcl->mi->cached, last);
+ last->ctrl &= ~MCAP_CTRL_CACHED;
+ if (last->ctrl & MCAP_CTRL_CONN) {
+ /* We have to release this MCL if */
+ /* connection is not successful */
+ last->ctrl |= MCAP_CTRL_FREE;
+ } else {
+ mcap_mcl_release(last);
+ last->mi->mcl_uncached_cb(last, last->mi->user_data);
+ }
+ mcap_mcl_unref(last);
+ }
+
+ mcl->mi->cached = g_slist_prepend(mcl->mi->cached, mcl);
+ mcl->ctrl |= MCAP_CTRL_CACHED;
+ mcap_mcl_shutdown(mcl);
+}
+
+static void mcap_uncache_mcl(struct mcap_mcl *mcl)
+{
+ if (!(mcl->ctrl & MCAP_CTRL_CACHED))
+ return;
+
+ DBG("Got MCL from cache");
+
+ mcl->mi->cached = g_slist_remove(mcl->mi->cached, mcl);
+ mcl->mi->mcls = g_slist_prepend(mcl->mi->mcls, mcl);
+ mcl->ctrl &= ~MCAP_CTRL_CACHED;
+ mcl->ctrl &= ~MCAP_CTRL_FREE;
+}
+
+void mcap_close_mcl(struct mcap_mcl *mcl, gboolean cache)
+{
+ if (!mcl)
+ return;
+
+ if (mcl->ctrl & MCAP_CTRL_FREE) {
+ mcap_mcl_release(mcl);
+ return;
+ }
+
+ if (!cache)
+ mcl->ctrl |= MCAP_CTRL_NOCACHE;
+
+ if (mcl->cc) {
+ g_io_channel_shutdown(mcl->cc, TRUE, NULL);
+ g_io_channel_unref(mcl->cc);
+ mcl->cc = NULL;
+ mcl->state = MCL_IDLE;
+ } else if ((mcl->ctrl & MCAP_CTRL_CACHED) &&
+ (mcl->ctrl & MCAP_CTRL_NOCACHE)) {
+ mcl->ctrl &= ~MCAP_CTRL_CACHED;
+ mcl->mi->cached = g_slist_remove(mcl->mi->cached, mcl);
+ mcap_mcl_release(mcl);
+ mcap_mcl_unref(mcl);
+ }
+}
+
+struct mcap_mcl *mcap_mcl_ref(struct mcap_mcl *mcl)
+{
+ mcl->ref++;
+
+ DBG("mcap_mcl_ref(%p): ref=%d", mcl, mcl->ref);
+
+ return mcl;
+}
+
+void mcap_mcl_unref(struct mcap_mcl *mcl)
+{
+ mcl->ref--;
+
+ DBG("mcap_mcl_unref(%p): ref=%d", mcl, mcl->ref);
+
+ if (mcl->ref > 0)
+ return;
+
+ mcap_mcl_release(mcl);
+ mcap_instance_unref(mcl->mi);
+ g_free(mcl->cb);
+ g_free(mcl);
+}
+
+static gboolean parse_set_opts(struct mcap_mdl_cb *mdl_cb, GError **err,
+ McapMclCb cb1, va_list args)
+{
+ McapMclCb cb = cb1;
+ struct mcap_mdl_cb *c;
+
+ c = g_new0(struct mcap_mdl_cb, 1);
+
+ while (cb != MCAP_MDL_CB_INVALID) {
+ switch (cb) {
+ case MCAP_MDL_CB_CONNECTED:
+ c->mdl_connected = va_arg(args, mcap_mdl_event_cb);
+ break;
+ case MCAP_MDL_CB_CLOSED:
+ c->mdl_closed = va_arg(args, mcap_mdl_event_cb);
+ break;
+ case MCAP_MDL_CB_DELETED:
+ c->mdl_deleted = va_arg(args, mcap_mdl_event_cb);
+ break;
+ case MCAP_MDL_CB_ABORTED:
+ c->mdl_aborted = va_arg(args, mcap_mdl_event_cb);
+ break;
+ case MCAP_MDL_CB_REMOTE_CONN_REQ:
+ c->mdl_conn_req = va_arg(args,
+ mcap_remote_mdl_conn_req_cb);
+ break;
+ case MCAP_MDL_CB_REMOTE_RECONN_REQ:
+ c->mdl_reconn_req = va_arg(args,
+ mcap_remote_mdl_reconn_req_cb);
+ break;
+ default:
+ g_set_error(err, MCAP_ERROR, MCAP_ERROR_INVALID_ARGS,
+ "Unknown option %d", cb);
+ g_free(c);
+ return FALSE;
+ }
+ cb = va_arg(args, int);
+ }
+
+ /* Set new callbacks */
+ if (c->mdl_connected)
+ mdl_cb->mdl_connected = c->mdl_connected;
+ if (c->mdl_closed)
+ mdl_cb->mdl_closed = c->mdl_closed;
+ if (c->mdl_deleted)
+ mdl_cb->mdl_deleted = c->mdl_deleted;
+ if (c->mdl_aborted)
+ mdl_cb->mdl_aborted = c->mdl_aborted;
+ if (c->mdl_conn_req)
+ mdl_cb->mdl_conn_req = c->mdl_conn_req;
+ if (c->mdl_reconn_req)
+ mdl_cb->mdl_reconn_req = c->mdl_reconn_req;
+
+ g_free(c);
+
+ return TRUE;
+}
+
+gboolean mcap_mcl_set_cb(struct mcap_mcl *mcl, gpointer user_data,
+ GError **gerr, McapMclCb cb1, ...)
+{
+ va_list args;
+ gboolean ret;
+
+ va_start(args, cb1);
+ ret = parse_set_opts(mcl->cb, gerr, cb1, args);
+ va_end(args);
+
+ if (!ret)
+ return FALSE;
+
+ mcl->cb->user_data = user_data;
+ return TRUE;
+}
+
+void mcap_mcl_get_addr(struct mcap_mcl *mcl, bdaddr_t *addr)
+{
+ bacpy(addr, &mcl->addr);
+}
+
+static void mcap_del_mdl(gpointer elem, gpointer user_data)
+{
+ struct mcap_mdl *mdl = elem;
+ gboolean notify = *(gboolean *) user_data;
+
+ shutdown_mdl(mdl);
+ if (notify)
+ mdl->mcl->cb->mdl_deleted(mdl, mdl->mcl->cb->user_data);
+
+ mcap_mdl_unref(mdl);
+}
+
+static gboolean check_cmd_req_length(struct mcap_mcl *mcl, void *cmd,
+ uint32_t rlen, uint32_t explen, uint8_t rspcod)
+{
+ mcap_md_req *req;
+ uint16_t mdl_id;
+
+ if (rlen != explen) {
+ if (rlen >= sizeof(mcap_md_req)) {
+ req = cmd;
+ mdl_id = ntohs(req->mdl);
+ } else {
+ /* We can't get mdlid */
+ mdl_id = MCAP_MDLID_RESERVED;
+ }
+ mcap_send_cmd(mcl, rspcod, MCAP_INVALID_PARAM_VALUE, mdl_id,
+ NULL, 0);
+ return FALSE;
+ }
+ return TRUE;
+}
+
+static void process_md_create_mdl_req(struct mcap_mcl *mcl, void *cmd,
+ uint32_t len)
+{
+ mcap_md_create_mdl_req *req;
+ struct mcap_mdl *mdl;
+ uint16_t mdl_id;
+ uint8_t mdep_id;
+ uint8_t cfga, conf;
+ uint8_t rsp;
+
+ if (!check_cmd_req_length(mcl, cmd, len, sizeof(mcap_md_create_mdl_req),
+ MCAP_MD_CREATE_MDL_RSP))
+ return;
+
+ req = cmd;
+ mdl_id = ntohs(req->mdl);
+ if (mdl_id < MCAP_MDLID_INITIAL || mdl_id > MCAP_MDLID_FINAL) {
+ mcap_send_cmd(mcl, MCAP_MD_CREATE_MDL_RSP, MCAP_INVALID_MDL,
+ mdl_id, NULL, 0);
+ return;
+ }
+
+ mdep_id = req->mdep;
+ if (mdep_id > MCAP_MDEPID_FINAL) {
+ mcap_send_cmd(mcl, MCAP_MD_CREATE_MDL_RSP, MCAP_INVALID_MDEP,
+ mdl_id, NULL, 0);
+ return;
+ }
+
+ mdl = get_mdl(mcl, mdl_id);
+ if (mdl && (mdl->state == MDL_WAITING || mdl->state == MDL_DELETING )) {
+ /* Creation request arrives for a MDL that is being managed
+ * at current moment */
+ mcap_send_cmd(mcl, MCAP_MD_CREATE_MDL_RSP, MCAP_MDL_BUSY,
+ mdl_id, NULL, 0);
+ return;
+ }
+
+ cfga = conf = req->conf;
+ /* Callback to upper layer */
+ rsp = mcl->cb->mdl_conn_req(mcl, mdep_id, mdl_id, &conf,
+ mcl->cb->user_data);
+ if (mcl->state == MCL_IDLE) {
+ /* MCL has been closed int the callback */
+ return;
+ }
+
+ if (cfga != 0 && cfga != conf) {
+ /* Remote device set default configuration but upper profile */
+ /* has changed it. Protocol Error: force closing the MCL by */
+ /* remote device using UNSPECIFIED_ERROR response */
+ mcap_send_cmd(mcl, MCAP_MD_CREATE_MDL_RSP,
+ MCAP_UNSPECIFIED_ERROR, mdl_id, NULL, 0);
+ return;
+ }
+ if (rsp != MCAP_SUCCESS) {
+ mcap_send_cmd(mcl, MCAP_MD_CREATE_MDL_RSP, rsp, mdl_id,
+ NULL, 0);
+ return;
+ }
+
+ if (!mdl) {
+ mdl = g_new0(struct mcap_mdl, 1);
+ mdl->mcl = mcap_mcl_ref(mcl);
+ mdl->mdlid = mdl_id;
+ mcl->mdls = g_slist_insert_sorted(mcl->mdls, mcap_mdl_ref(mdl),
+ compare_mdl);
+ } else if (mdl->state == MDL_CONNECTED) {
+ /* MCAP specification says that we should close the MCL if
+ * it is open when we receive a MD_CREATE_MDL_REQ */
+ shutdown_mdl(mdl);
+ }
+
+ mdl->mdep_id = mdep_id;
+ mdl->state = MDL_WAITING;
+
+ mcl->state = MCL_PENDING;
+ mcap_send_cmd(mcl, MCAP_MD_CREATE_MDL_RSP, MCAP_SUCCESS, mdl_id,
+ &conf, 1);
+}
+
+static void process_md_reconnect_mdl_req(struct mcap_mcl *mcl, void *cmd,
+ uint32_t len)
+{
+ mcap_md_req *req;
+ struct mcap_mdl *mdl;
+ uint16_t mdl_id;
+ uint8_t rsp;
+
+ if (!check_cmd_req_length(mcl, cmd, len, sizeof(mcap_md_req),
+ MCAP_MD_RECONNECT_MDL_RSP))
+ return;
+
+ req = cmd;
+ mdl_id = ntohs(req->mdl);
+
+ mdl = get_mdl(mcl, mdl_id);
+ if (!mdl) {
+ mcap_send_cmd(mcl, MCAP_MD_RECONNECT_MDL_RSP, MCAP_INVALID_MDL,
+ mdl_id, NULL, 0);
+ return;
+ } else if (mdl->state == MDL_WAITING || mdl->state == MDL_DELETING ) {
+ /* Creation request arrives for a MDL that is being managed
+ * at current moment */
+ mcap_send_cmd(mcl, MCAP_MD_RECONNECT_MDL_RSP, MCAP_MDL_BUSY,
+ mdl_id, NULL, 0);
+ return;
+ }
+
+ /* Callback to upper layer */
+ rsp = mcl->cb->mdl_reconn_req(mdl, mcl->cb->user_data);
+ if (mcl->state == MCL_IDLE)
+ return;
+
+ if (rsp != MCAP_SUCCESS) {
+ mcap_send_cmd(mcl, MCAP_MD_RECONNECT_MDL_RSP, rsp, mdl_id,
+ NULL, 0);
+ return;
+ }
+
+ if (mdl->state == MDL_CONNECTED)
+ shutdown_mdl(mdl);
+
+ mdl->state = MDL_WAITING;
+ mcl->state = MCL_PENDING;
+ mcap_send_cmd(mcl, MCAP_MD_RECONNECT_MDL_RSP, MCAP_SUCCESS, mdl_id,
+ NULL, 0);
+}
+
+static void process_md_abort_mdl_req(struct mcap_mcl *mcl, void *cmd,
+ uint32_t len)
+{
+ mcap_md_req *req;
+ GSList *l;
+ struct mcap_mdl *mdl, *abrt;
+ uint16_t mdl_id;
+
+ if (!check_cmd_req_length(mcl, cmd, len, sizeof(mcap_md_req),
+ MCAP_MD_ABORT_MDL_RSP))
+ return;
+
+ req = cmd;
+ mdl_id = ntohs(req->mdl);
+ mcl->state = MCL_CONNECTED;
+ abrt = NULL;
+ for (l = mcl->mdls; l; l = l->next) {
+ mdl = l->data;
+ if (mdl_id == mdl->mdlid && mdl->state == MDL_WAITING) {
+ abrt = mdl;
+ if (mcl->state != MCL_CONNECTED)
+ break;
+ continue;
+ }
+ if (mdl->state == MDL_CONNECTED && mcl->state != MCL_ACTIVE)
+ mcl->state = MCL_ACTIVE;
+
+ if (abrt && mcl->state == MCL_ACTIVE)
+ break;
+ }
+
+ if (!abrt) {
+ mcap_send_cmd(mcl, MCAP_MD_ABORT_MDL_RSP, MCAP_INVALID_MDL,
+ mdl_id, NULL, 0);
+ return;
+ }
+
+ mcl->cb->mdl_aborted(abrt, mcl->cb->user_data);
+ abrt->state = MDL_CLOSED;
+ mcap_send_cmd(mcl, MCAP_MD_ABORT_MDL_RSP, MCAP_SUCCESS, mdl_id,
+ NULL, 0);
+}
+
+static void process_md_delete_mdl_req(struct mcap_mcl *mcl, void *cmd,
+ uint32_t len)
+{
+ mcap_md_req *req;
+ struct mcap_mdl *mdl, *aux;
+ uint16_t mdlid;
+ gboolean notify;
+ GSList *l;
+
+ if (!check_cmd_req_length(mcl, cmd, len, sizeof(mcap_md_req),
+ MCAP_MD_DELETE_MDL_RSP))
+ return;
+
+ req = cmd;
+ mdlid = ntohs(req->mdl);
+ if (mdlid == MCAP_ALL_MDLIDS) {
+ notify = FALSE;
+ g_slist_foreach(mcl->mdls, mcap_del_mdl, &notify);
+ g_slist_free(mcl->mdls);
+ mcl->mdls = NULL;
+ mcl->state = MCL_CONNECTED;
+ /* NULL mdl means ALL_MDLS */
+ mcl->cb->mdl_deleted(NULL, mcl->cb->user_data);
+ goto resp;
+ }
+
+ if (mdlid < MCAP_MDLID_INITIAL || mdlid > MCAP_MDLID_FINAL) {
+ mcap_send_cmd(mcl, MCAP_MD_DELETE_MDL_RSP, MCAP_INVALID_MDL,
+ mdlid, NULL, 0);
+ return;
+ }
+
+ for (l = mcl->mdls, mdl = NULL; l; l = l->next) {
+ aux = l->data;
+ if (aux->mdlid == mdlid) {
+ mdl = aux;
+ break;
+ }
+ }
+
+ if (!mdl || mdl->state == MDL_WAITING) {
+ mcap_send_cmd(mcl, MCAP_MD_DELETE_MDL_RSP, MCAP_INVALID_MDL,
+ mdlid, NULL, 0);
+ return;
+ }
+
+ mcl->mdls = g_slist_remove(mcl->mdls, mdl);
+ update_mcl_state(mcl);
+ notify = TRUE;
+ mcap_del_mdl(mdl, &notify);
+
+resp:
+ mcap_send_cmd(mcl, MCAP_MD_DELETE_MDL_RSP, MCAP_SUCCESS, mdlid,
+ NULL, 0);
+}
+
+static void invalid_req_state(struct mcap_mcl *mcl, uint8_t *cmd, uint32_t len)
+{
+ uint16_t mdlr;
+
+ error("Invalid cmd received (op code = %d) in state %d", cmd[0],
+ mcl->state);
+ /* Get previously mdlid sent to generate an appropriate
+ * response if it is possible */
+ mdlr = len < sizeof(mcap_md_req) ? MCAP_MDLID_RESERVED :
+ ntohs(((mcap_md_req *) cmd)->mdl);
+ mcap_send_cmd(mcl, cmd[0]+1, MCAP_INVALID_OPERATION, mdlr, NULL, 0);
+}
+
+/* Function used to process commands depending of MCL state */
+static void proc_req_connected(struct mcap_mcl *mcl, uint8_t *cmd, uint32_t len)
+{
+ switch (cmd[0]) {
+ case MCAP_MD_CREATE_MDL_REQ:
+ process_md_create_mdl_req(mcl, cmd, len);
+ break;
+ case MCAP_MD_RECONNECT_MDL_REQ:
+ process_md_reconnect_mdl_req(mcl, cmd, len);
+ break;
+ case MCAP_MD_DELETE_MDL_REQ:
+ process_md_delete_mdl_req(mcl, cmd, len);
+ break;
+ default:
+ invalid_req_state(mcl, cmd, len);
+ }
+}
+
+static void proc_req_pending(struct mcap_mcl *mcl, uint8_t *cmd, uint32_t len)
+{
+ if (cmd[0] == MCAP_MD_ABORT_MDL_REQ)
+ process_md_abort_mdl_req(mcl, cmd, len);
+ else
+ invalid_req_state(mcl, cmd, len);
+}
+
+static void proc_req_active(struct mcap_mcl *mcl, uint8_t *cmd, uint32_t len)
+{
+ switch (cmd[0]) {
+ case MCAP_MD_CREATE_MDL_REQ:
+ process_md_create_mdl_req(mcl, cmd, len);
+ break;
+ case MCAP_MD_RECONNECT_MDL_REQ:
+ process_md_reconnect_mdl_req(mcl, cmd, len);
+ break;
+ case MCAP_MD_DELETE_MDL_REQ:
+ process_md_delete_mdl_req(mcl, cmd, len);
+ break;
+ default:
+ invalid_req_state(mcl, cmd, len);
+ }
+}
+
+/* Function used to process replies */
+static gboolean check_err_rsp(struct mcap_mcl *mcl, mcap_rsp *rsp,
+ uint32_t rlen, uint32_t len, GError **gerr)
+{
+ mcap_md_req *cmdlast = (mcap_md_req *) mcl->lcmd;
+ int err = MCAP_ERROR_FAILED;
+ gboolean close = FALSE;
+ char *msg;
+
+ if (rsp->op == MCAP_ERROR_RSP) {
+ msg = "MCAP_ERROR_RSP received";
+ close = FALSE;
+ goto fail;
+ }
+
+ /* Check if the response matches with the last request */
+ if (rlen < sizeof(mcap_rsp) || (mcl->lcmd[0] + 1) != rsp->op) {
+ msg = "Protocol error";
+ close = FALSE;
+ goto fail;
+ }
+
+ if (rlen < len) {
+ msg = "Protocol error";
+ close = FALSE;
+ goto fail;
+ }
+
+ if (rsp->mdl != cmdlast->mdl) {
+ msg = "MDLID received doesn't match with MDLID sent";
+ close = TRUE;
+ goto fail;
+ }
+
+ if (rsp->rc == MCAP_REQUEST_NOT_SUPPORTED) {
+ msg = "Remote does not support opcodes";
+ mcl->ctrl &= ~MCAP_CTRL_STD_OP;
+ goto fail;
+ }
+
+ if (rsp->rc == MCAP_UNSPECIFIED_ERROR) {
+ msg = "Unspecified error";
+ close = TRUE;
+ goto fail;
+ }
+
+ if (rsp->rc != MCAP_SUCCESS) {
+ msg = error2str(rsp->rc);
+ err = rsp->rc;
+ goto fail;
+ }
+
+ return FALSE;
+
+fail:
+ g_set_error(gerr, MCAP_ERROR, err, "%s", msg);
+ return close;
+}
+
+static gboolean process_md_create_mdl_rsp(struct mcap_mcl *mcl,
+ mcap_rsp *rsp, uint32_t len)
+{
+ mcap_md_create_mdl_req *cmdlast = (mcap_md_create_mdl_req *) mcl->lcmd;
+ struct mcap_mdl_op_cb *conn = mcl->priv_data;
+ mcap_mdl_operation_conf_cb connect_cb = conn->cb.op_conf;
+ gpointer user_data = conn->user_data;
+ struct mcap_mdl *mdl = conn->mdl;
+ uint8_t conf = cmdlast->conf;
+ gboolean close;
+ GError *gerr = NULL;
+
+ close = check_err_rsp(mcl, rsp, len, sizeof(mcap_rsp) + 1, &gerr);
+ g_free(mcl->lcmd);
+ mcl->lcmd = NULL;
+ mcl->req = MCL_AVAILABLE;
+
+ if (gerr)
+ goto fail;
+
+ /* Check if preferences changed */
+ if (conf != 0x00 && rsp->data[0] != conf) {
+ g_set_error(&gerr, MCAP_ERROR, MCAP_ERROR_FAILED,
+ "Configuration changed");
+ close = TRUE;
+ goto fail;
+ }
+
+ connect_cb(mdl, rsp->data[0], gerr, user_data);
+ return close;
+
+fail:
+ connect_cb(NULL, 0, gerr, user_data);
+ mcl->mdls = g_slist_remove(mcl->mdls, mdl);
+ mcap_mdl_unref(mdl);
+ g_error_free(gerr);
+ update_mcl_state(mcl);
+ return close;
+}
+
+static gboolean process_md_reconnect_mdl_rsp(struct mcap_mcl *mcl,
+ mcap_rsp *rsp, uint32_t len)
+{
+ struct mcap_mdl_op_cb *reconn = mcl->priv_data;
+ mcap_mdl_operation_cb reconn_cb = reconn->cb.op;
+ gpointer user_data = reconn->user_data;
+ struct mcap_mdl *mdl = reconn->mdl;
+ GError *gerr = NULL;
+ gboolean close;
+
+ close = check_err_rsp(mcl, rsp, len, sizeof(mcap_rsp), &gerr);
+
+ g_free(mcl->lcmd);
+ mcl->lcmd = NULL;
+ mcl->req = MCL_AVAILABLE;
+
+ reconn_cb(mdl, gerr, user_data);
+ if (!gerr)
+ return close;
+
+ g_error_free(gerr);
+ shutdown_mdl(mdl);
+ update_mcl_state(mcl);
+
+ if (rsp->rc != MCAP_INVALID_MDL)
+ return close;
+
+ /* Remove cached mdlid */
+ mcl->mdls = g_slist_remove(mcl->mdls, mdl);
+ mcl->cb->mdl_deleted(mdl, mcl->cb->user_data);
+ mcap_mdl_unref(mdl);
+
+ return close;
+}
+
+static gboolean process_md_abort_mdl_rsp(struct mcap_mcl *mcl,
+ mcap_rsp *rsp, uint32_t len)
+{
+ struct mcap_mdl_op_cb *abrt = mcl->priv_data;
+ mcap_mdl_notify_cb abrt_cb = abrt->cb.notify;
+ gpointer user_data = abrt->user_data;
+ struct mcap_mdl *mdl = abrt->mdl;
+ GError *gerr = NULL;
+ gboolean close;
+
+ close = check_err_rsp(mcl, rsp, len, sizeof(mcap_rsp), &gerr);
+
+ g_free(mcl->lcmd);
+ mcl->lcmd = NULL;
+ mcl->req = MCL_AVAILABLE;
+
+ abrt_cb(gerr, user_data);
+ shutdown_mdl(mdl);
+
+ if (len >= sizeof(mcap_rsp) && rsp->rc == MCAP_INVALID_MDL) {
+ mcl->mdls = g_slist_remove(mcl->mdls, mdl);
+ mcl->cb->mdl_deleted(mdl, mcl->cb->user_data);
+ mcap_mdl_unref(mdl);
+ }
+
+ if (gerr)
+ g_error_free(gerr);
+
+ update_mcl_state(mcl);
+
+ return close;
+}
+
+static void restore_mdl(gpointer elem, gpointer data)
+{
+ struct mcap_mdl *mdl = elem;
+
+ if (mdl->state == MDL_DELETING) {
+ if (mdl->dc)
+ mdl->state = MDL_CONNECTED;
+ else
+ mdl->state = MDL_CLOSED;
+ } else if (mdl->state == MDL_CLOSED)
+ mdl->mcl->cb->mdl_closed(mdl, mdl->mcl->cb->user_data);
+}
+
+static void check_mdl_del_err(struct mcap_mdl *mdl, mcap_rsp *rsp)
+{
+ if (rsp->rc != MCAP_ERROR_INVALID_MDL) {
+ restore_mdl(mdl, NULL);
+ return;
+ }
+
+ /* MDL does not exist in remote side, we can delete it */
+ mdl->mcl->mdls = g_slist_remove(mdl->mcl->mdls, mdl);
+ mcap_mdl_unref(mdl);
+}
+
+static gboolean process_md_delete_mdl_rsp(struct mcap_mcl *mcl, mcap_rsp *rsp,
+ uint32_t len)
+{
+ struct mcap_mdl_op_cb *del = mcl->priv_data;
+ struct mcap_mdl *mdl = del->mdl;
+ mcap_mdl_notify_cb deleted_cb = del->cb.notify;
+ gpointer user_data = del->user_data;
+ mcap_md_req *cmdlast = (mcap_md_req *) mcl->lcmd;
+ uint16_t mdlid = ntohs(cmdlast->mdl);
+ GError *gerr = NULL;
+ gboolean close;
+ gboolean notify = FALSE;
+
+ close = check_err_rsp(mcl, rsp, len, sizeof(mcap_rsp), &gerr);
+
+ g_free(mcl->lcmd);
+ mcl->lcmd = NULL;
+ mcl->req = MCL_AVAILABLE;
+
+ if (gerr) {
+ if (mdl)
+ check_mdl_del_err(mdl, rsp);
+ else
+ g_slist_foreach(mcl->mdls, restore_mdl, NULL);
+ deleted_cb(gerr, user_data);
+ g_error_free(gerr);
+ return close;
+ }
+
+ if (mdlid == MCAP_ALL_MDLIDS) {
+ g_slist_foreach(mcl->mdls, mcap_del_mdl, &notify);
+ g_slist_free(mcl->mdls);
+ mcl->mdls = NULL;
+ mcl->state = MCL_CONNECTED;
+ } else {
+ mcl->mdls = g_slist_remove(mcl->mdls, mdl);
+ update_mcl_state(mcl);
+ mcap_del_mdl(mdl, &notify);
+ }
+
+ deleted_cb(gerr, user_data);
+
+ return close;
+}
+
+static void post_process_rsp(struct mcap_mcl *mcl, struct mcap_mdl_op_cb *op)
+{
+ if (mcl->priv_data != op) {
+ /* Queued MCAP request in some callback. */
+ /* We should not delete the mcl private data */
+ free_mcap_mdl_op(op);
+ } else {
+ /* This is not a queued request. It's safe */
+ /* delete the mcl private data here. */
+ free_mcl_priv_data(mcl);
+ }
+}
+
+static void proc_response(struct mcap_mcl *mcl, void *buf, uint32_t len)
+{
+ struct mcap_mdl_op_cb *op = mcl->priv_data;
+ mcap_rsp *rsp = buf;
+ gboolean close;
+
+ RELEASE_TIMER(mcl);
+
+ switch (mcl->lcmd[0] + 1) {
+ case MCAP_MD_CREATE_MDL_RSP:
+ close = process_md_create_mdl_rsp(mcl, rsp, len);
+ post_process_rsp(mcl, op);
+ break;
+ case MCAP_MD_RECONNECT_MDL_RSP:
+ close = process_md_reconnect_mdl_rsp(mcl, rsp, len);
+ post_process_rsp(mcl, op);
+ break;
+ case MCAP_MD_ABORT_MDL_RSP:
+ close = process_md_abort_mdl_rsp(mcl, rsp, len);
+ post_process_rsp(mcl, op);
+ break;
+ case MCAP_MD_DELETE_MDL_RSP:
+ close = process_md_delete_mdl_rsp(mcl, rsp, len);
+ post_process_rsp(mcl, op);
+ break;
+ default:
+ DBG("Unknown cmd response received (op code = %d)", rsp->op);
+ close = TRUE;
+ break;
+ }
+
+ if (close) {
+ mcl->mi->mcl_disconnected_cb(mcl, mcl->mi->user_data);
+ mcap_cache_mcl(mcl);
+ }
+}
+
+static void proc_cmd(struct mcap_mcl *mcl, uint8_t *cmd, uint32_t len)
+{
+ GError *gerr = NULL;
+
+ if (cmd[0] > MCAP_MD_SYNC_INFO_IND ||
+ (cmd[0] > MCAP_MD_DELETE_MDL_RSP &&
+ cmd[0] < MCAP_MD_SYNC_CAP_REQ)) {
+ error("Unknown cmd received (op code = %d)", cmd[0]);
+ mcap_send_cmd(mcl, MCAP_ERROR_RSP, MCAP_INVALID_OP_CODE,
+ MCAP_MDLID_RESERVED, NULL, 0);
+ return;
+ }
+
+ if (cmd[0] >= MCAP_MD_SYNC_CAP_REQ &&
+ cmd[0] <= MCAP_MD_SYNC_INFO_IND) {
+ proc_sync_cmd(mcl, cmd, len);
+ return;
+ }
+
+ if (!(mcl->ctrl & MCAP_CTRL_STD_OP)) {
+ /* In case the remote device doesn't work correctly */
+ error("Remote device does not support opcodes, cmd ignored");
+ return;
+ }
+
+ if (mcl->req == MCL_WAITING_RSP) {
+ if (cmd[0] & 0x01) {
+ /* Request arrived when a response is expected */
+ if (mcl->role == MCL_INITIATOR)
+ /* ignore */
+ return;
+ /* Initiator will ignore our last request */
+ RELEASE_TIMER(mcl);
+ mcl->req = MCL_AVAILABLE;
+ g_set_error(&gerr, MCAP_ERROR, MCAP_ERROR_REQ_IGNORED,
+ "Initiator sent a request with more priority");
+ mcap_notify_error(mcl, gerr);
+ proc_req[mcl->state](mcl, cmd, len);
+ return;
+ }
+ proc_response(mcl, cmd, len);
+ } else if (cmd[0] & 0x01)
+ proc_req[mcl->state](mcl, cmd, len);
+}
+
+static gboolean mdl_event_cb(GIOChannel *chan, GIOCondition cond, gpointer data)
+{
+
+ struct mcap_mdl *mdl = data;
+ gboolean notify;
+
+ DBG("Close MDL %d", mdl->mdlid);
+
+ notify = (mdl->state == MDL_CONNECTED);
+ shutdown_mdl(mdl);
+
+ update_mcl_state(mdl->mcl);
+
+ if (notify) {
+ /*Callback to upper layer */
+ mdl->mcl->cb->mdl_closed(mdl, mdl->mcl->cb->user_data);
+ }
+
+ return FALSE;
+}
+
+static void mcap_connect_mdl_cb(GIOChannel *chan, GError *conn_err,
+ gpointer data)
+{
+ struct mcap_mdl_op_cb *con = data;
+ struct mcap_mdl *mdl = con->mdl;
+ mcap_mdl_operation_cb cb = con->cb.op;
+ gpointer user_data = con->user_data;
+
+ DBG("mdl connect callback");
+
+ if (conn_err) {
+ DBG("ERROR: mdl connect callback");
+ mdl->state = MDL_CLOSED;
+ g_io_channel_unref(mdl->dc);
+ mdl->dc = NULL;
+ cb(mdl, conn_err, user_data);
+ return;
+ }
+
+ mdl->state = MDL_CONNECTED;
+ mdl->wid = g_io_add_watch_full(mdl->dc, G_PRIORITY_DEFAULT,
+ G_IO_ERR | G_IO_HUP | G_IO_NVAL,
+ (GIOFunc) mdl_event_cb,
+ mcap_mdl_ref(mdl),
+ (GDestroyNotify) mcap_mdl_unref);
+
+ cb(mdl, conn_err, user_data);
+}
+
+gboolean mcap_connect_mdl(struct mcap_mdl *mdl, uint8_t mode,
+ uint16_t dcpsm,
+ mcap_mdl_operation_cb connect_cb,
+ gpointer user_data,
+ GDestroyNotify destroy,
+ GError **err)
+{
+ struct mcap_mdl_op_cb *con;
+
+ if (mdl->state != MDL_WAITING) {
+ g_set_error(err, MCAP_ERROR, MCAP_ERROR_INVALID_MDL,
+ "%s", error2str(MCAP_INVALID_MDL));
+ return FALSE;
+ }
+
+ if ((mode != L2CAP_MODE_ERTM) && (mode != L2CAP_MODE_STREAMING)) {
+ g_set_error(err, MCAP_ERROR, MCAP_ERROR_INVALID_ARGS,
+ "Invalid MDL configuration");
+ return FALSE;
+ }
+
+ con = g_new0(struct mcap_mdl_op_cb, 1);
+ con->mdl = mcap_mdl_ref(mdl);
+ con->cb.op = connect_cb;
+ con->destroy = destroy;
+ con->user_data = user_data;
+
+ mdl->dc = bt_io_connect(mcap_connect_mdl_cb, con,
+ (GDestroyNotify) free_mcap_mdl_op, err,
+ BT_IO_OPT_SOURCE_BDADDR, &mdl->mcl->mi->src,
+ BT_IO_OPT_DEST_BDADDR, &mdl->mcl->addr,
+ BT_IO_OPT_PSM, dcpsm,
+ BT_IO_OPT_MTU, MCAP_DC_MTU,
+ BT_IO_OPT_SEC_LEVEL, mdl->mcl->mi->sec,
+ BT_IO_OPT_MODE, mode,
+ BT_IO_OPT_INVALID);
+ if (!mdl->dc) {
+ DBG("MDL Connection error");
+ mdl->state = MDL_CLOSED;
+ mcap_mdl_unref(con->mdl);
+ g_free(con);
+ return FALSE;
+ }
+
+ return TRUE;
+}
+
+static gboolean mcl_control_cb(GIOChannel *chan, GIOCondition cond,
+ gpointer data)
+{
+ GError *gerr = NULL;
+ struct mcap_mcl *mcl = data;
+ int sk, len;
+ uint8_t buf[MCAP_CC_MTU];
+
+ if (cond & (G_IO_ERR | G_IO_HUP | G_IO_NVAL))
+ goto fail;
+
+ sk = g_io_channel_unix_get_fd(chan);
+ len = read(sk, buf, sizeof(buf));
+ if (len < 0)
+ goto fail;
+
+ proc_cmd(mcl, buf, (uint32_t) len);
+ return TRUE;
+
+fail:
+ if (mcl->state != MCL_IDLE) {
+ if (mcl->req == MCL_WAITING_RSP) {
+ /* notify error in pending callback */
+ g_set_error(&gerr, MCAP_ERROR, MCAP_ERROR_MCL_CLOSED,
+ "MCL closed");
+ mcap_notify_error(mcl, gerr);
+ g_error_free(gerr);
+ }
+ mcl->mi->mcl_disconnected_cb(mcl, mcl->mi->user_data);
+ }
+ mcap_cache_mcl(mcl);
+ return FALSE;
+}
+
+static void mcap_connect_mcl_cb(GIOChannel *chan, GError *conn_err,
+ gpointer user_data)
+{
+ char dstaddr[18];
+ struct connect_mcl *con = user_data;
+ struct mcap_mcl *aux, *mcl = con->mcl;
+ mcap_mcl_connect_cb connect_cb = con->connect_cb;
+ gpointer data = con->user_data;
+ GError *gerr = NULL;
+
+ mcl->ctrl &= ~MCAP_CTRL_CONN;
+
+ if (conn_err) {
+ if (mcl->ctrl & MCAP_CTRL_FREE) {
+ mcap_mcl_release(mcl);
+ mcl->mi->mcl_uncached_cb(mcl, mcl->mi->user_data);
+ }
+ connect_cb(NULL, conn_err, data);
+ return;
+ }
+
+ ba2str(&mcl->addr, dstaddr);
+
+ aux = find_mcl(mcl->mi->mcls, &mcl->addr);
+ if (aux) {
+ /* Double MCL connection case */
+ error("MCL error: Device %s is already connected", dstaddr);
+ g_set_error(&gerr, MCAP_ERROR, MCAP_ERROR_ALREADY_EXISTS,
+ "MCL %s is already connected", dstaddr);
+ connect_cb(NULL, gerr, data);
+ g_error_free(gerr);
+ return;
+ }
+
+ mcl->state = MCL_CONNECTED;
+ mcl->role = MCL_INITIATOR;
+ mcl->req = MCL_AVAILABLE;
+ mcl->ctrl |= MCAP_CTRL_STD_OP;
+
+ mcap_sync_init(mcl);
+
+ if (mcl->ctrl & MCAP_CTRL_CACHED)
+ mcap_uncache_mcl(mcl);
+ else {
+ mcl->ctrl &= ~MCAP_CTRL_FREE;
+ mcl->mi->mcls = g_slist_prepend(mcl->mi->mcls,
+ mcap_mcl_ref(mcl));
+ }
+
+ mcl->wid = g_io_add_watch_full(mcl->cc, G_PRIORITY_DEFAULT,
+ G_IO_IN | G_IO_ERR | G_IO_HUP | G_IO_NVAL,
+ (GIOFunc) mcl_control_cb,
+ mcap_mcl_ref(mcl),
+ (GDestroyNotify) mcap_mcl_unref);
+ connect_cb(mcl, gerr, data);
+}
+
+static void set_mdl_properties(GIOChannel *chan, struct mcap_mdl *mdl)
+{
+ struct mcap_mcl *mcl = mdl->mcl;
+
+ mdl->state = MDL_CONNECTED;
+ mdl->dc = g_io_channel_ref(chan);
+ mdl->wid = g_io_add_watch_full(mdl->dc, G_PRIORITY_DEFAULT,
+ G_IO_ERR | G_IO_HUP | G_IO_NVAL,
+ (GIOFunc) mdl_event_cb,
+ mcap_mdl_ref(mdl),
+ (GDestroyNotify) mcap_mdl_unref);
+
+ mcl->state = MCL_ACTIVE;
+ mcl->cb->mdl_connected(mdl, mcl->cb->user_data);
+}
+
+static void mcl_io_destroy(gpointer data)
+{
+ struct connect_mcl *con = data;
+
+ mcap_mcl_unref(con->mcl);
+ if (con->destroy)
+ con->destroy(con->user_data);
+ g_free(con);
+}
+
+gboolean mcap_create_mcl(struct mcap_instance *mi,
+ const bdaddr_t *addr,
+ uint16_t ccpsm,
+ mcap_mcl_connect_cb connect_cb,
+ gpointer user_data,
+ GDestroyNotify destroy,
+ GError **err)
+{
+ struct mcap_mcl *mcl;
+ struct connect_mcl *con;
+
+ mcl = find_mcl(mi->mcls, addr);
+ if (mcl) {
+ g_set_error(err, MCAP_ERROR, MCAP_ERROR_ALREADY_EXISTS,
+ "MCL is already connected.");
+ return FALSE;
+ }
+
+ mcl = find_mcl(mi->cached, addr);
+ if (!mcl) {
+ mcl = g_new0(struct mcap_mcl, 1);
+ mcl->mi = mcap_instance_ref(mi);
+ mcl->state = MCL_IDLE;
+ bacpy(&mcl->addr, addr);
+ set_default_cb(mcl);
+ mcl->next_mdl = (rand() % MCAP_MDLID_FINAL) + 1;
+ }
+
+ mcl->ctrl |= MCAP_CTRL_CONN;
+
+ con = g_new0(struct connect_mcl, 1);
+ con->mcl = mcap_mcl_ref(mcl);
+ con->connect_cb = connect_cb;
+ con->destroy = destroy;
+ con->user_data = user_data;
+
+ mcl->cc = bt_io_connect(mcap_connect_mcl_cb, con,
+ mcl_io_destroy, err,
+ BT_IO_OPT_SOURCE_BDADDR, &mi->src,
+ BT_IO_OPT_DEST_BDADDR, addr,
+ BT_IO_OPT_PSM, ccpsm,
+ BT_IO_OPT_MTU, MCAP_CC_MTU,
+ BT_IO_OPT_SEC_LEVEL, mi->sec,
+ BT_IO_OPT_MODE, L2CAP_MODE_ERTM,
+ BT_IO_OPT_INVALID);
+ if (!mcl->cc) {
+ mcl->ctrl &= ~MCAP_CTRL_CONN;
+ if (mcl->ctrl & MCAP_CTRL_FREE) {
+ mcap_mcl_release(mcl);
+ mcl->mi->mcl_uncached_cb(mcl, mcl->mi->user_data);
+ }
+ mcap_mcl_unref(con->mcl);
+ g_free(con);
+ return FALSE;
+ }
+
+ return TRUE;
+}
+
+static void connect_dc_event_cb(GIOChannel *chan, GError *gerr,
+ gpointer user_data)
+{
+ struct mcap_instance *mi = user_data;
+ struct mcap_mcl *mcl;
+ struct mcap_mdl *mdl;
+ GError *err = NULL;
+ bdaddr_t dst;
+ GSList *l;
+
+ if (gerr)
+ return;
+
+ bt_io_get(chan, &err, BT_IO_OPT_DEST_BDADDR, &dst, BT_IO_OPT_INVALID);
+ if (err) {
+ error("%s", err->message);
+ g_error_free(err);
+ goto drop;
+ }
+
+ mcl = find_mcl(mi->mcls, &dst);
+ if (!mcl || mcl->state != MCL_PENDING)
+ goto drop;
+
+ for (l = mcl->mdls; l; l = l->next) {
+ mdl = l->data;
+ if (mdl->state == MDL_WAITING) {
+ set_mdl_properties(chan, mdl);
+ return;
+ }
+ }
+
+drop:
+ g_io_channel_shutdown(chan, TRUE, NULL);
+}
+
+static void set_mcl_conf(GIOChannel *chan, struct mcap_mcl *mcl)
+{
+ gboolean reconn;
+
+ mcl->state = MCL_CONNECTED;
+ mcl->role = MCL_ACCEPTOR;
+ mcl->req = MCL_AVAILABLE;
+ mcl->cc = g_io_channel_ref(chan);
+ mcl->ctrl |= MCAP_CTRL_STD_OP;
+
+ mcap_sync_init(mcl);
+
+ reconn = (mcl->ctrl & MCAP_CTRL_CACHED);
+ if (reconn)
+ mcap_uncache_mcl(mcl);
+ else
+ mcl->mi->mcls = g_slist_prepend(mcl->mi->mcls,
+ mcap_mcl_ref(mcl));
+
+ mcl->wid = g_io_add_watch_full(mcl->cc, G_PRIORITY_DEFAULT,
+ G_IO_IN | G_IO_ERR | G_IO_HUP | G_IO_NVAL,
+ (GIOFunc) mcl_control_cb,
+ mcap_mcl_ref(mcl),
+ (GDestroyNotify) mcap_mcl_unref);
+
+ /* Callback to report new MCL */
+ if (reconn)
+ mcl->mi->mcl_reconnected_cb(mcl, mcl->mi->user_data);
+ else
+ mcl->mi->mcl_connected_cb(mcl, mcl->mi->user_data);
+}
+
+static void connect_mcl_event_cb(GIOChannel *chan, GError *gerr,
+ gpointer user_data)
+{
+ struct mcap_instance *mi = user_data;
+ struct mcap_mcl *mcl;
+ bdaddr_t dst;
+ char address[18], srcstr[18];
+ GError *err = NULL;
+
+ if (gerr)
+ return;
+
+ bt_io_get(chan, &err,
+ BT_IO_OPT_DEST_BDADDR, &dst,
+ BT_IO_OPT_DEST, address,
+ BT_IO_OPT_INVALID);
+ if (err) {
+ error("%s", err->message);
+ g_error_free(err);
+ goto drop;
+ }
+
+ ba2str(&mi->src, srcstr);
+ mcl = find_mcl(mi->mcls, &dst);
+ if (mcl) {
+ error("Control channel already created with %s on adapter %s",
+ address, srcstr);
+ goto drop;
+ }
+
+ mcl = find_mcl(mi->cached, &dst);
+ if (!mcl) {
+ mcl = g_new0(struct mcap_mcl, 1);
+ mcl->mi = mcap_instance_ref(mi);
+ bacpy(&mcl->addr, &dst);
+ set_default_cb(mcl);
+ mcl->next_mdl = (rand() % MCAP_MDLID_FINAL) + 1;
+ }
+
+ set_mcl_conf(chan, mcl);
+
+ return;
+drop:
+ g_io_channel_shutdown(chan, TRUE, NULL);
+}
+
+struct mcap_instance *mcap_create_instance(const bdaddr_t *src,
+ BtIOSecLevel sec,
+ uint16_t ccpsm,
+ uint16_t dcpsm,
+ mcap_mcl_event_cb mcl_connected,
+ mcap_mcl_event_cb mcl_reconnected,
+ mcap_mcl_event_cb mcl_disconnected,
+ mcap_mcl_event_cb mcl_uncached,
+ mcap_info_ind_event_cb mcl_sync_info_ind,
+ gpointer user_data,
+ GError **gerr)
+{
+ struct mcap_instance *mi;
+
+ if (sec < BT_IO_SEC_MEDIUM) {
+ g_set_error(gerr, MCAP_ERROR, MCAP_ERROR_INVALID_ARGS,
+ "Security level can't be minor of %d",
+ BT_IO_SEC_MEDIUM);
+ return NULL;
+ }
+
+ if (!(mcl_connected && mcl_reconnected &&
+ mcl_disconnected && mcl_uncached)) {
+ g_set_error(gerr, MCAP_ERROR, MCAP_ERROR_INVALID_ARGS,
+ "The callbacks can't be null");
+ return NULL;
+ }
+
+ mi = g_new0(struct mcap_instance, 1);
+
+ bacpy(&mi->src, src);
+
+ mi->sec = sec;
+ mi->mcl_connected_cb = mcl_connected;
+ mi->mcl_reconnected_cb = mcl_reconnected;
+ mi->mcl_disconnected_cb = mcl_disconnected;
+ mi->mcl_uncached_cb = mcl_uncached;
+ mi->mcl_sync_infoind_cb = mcl_sync_info_ind;
+ mi->user_data = user_data;
+ mi->csp_enabled = FALSE;
+
+ /* Listen incoming connections in control channel */
+ mi->ccio = bt_io_listen(connect_mcl_event_cb, NULL, mi,
+ NULL, gerr,
+ BT_IO_OPT_SOURCE_BDADDR, &mi->src,
+ BT_IO_OPT_PSM, ccpsm,
+ BT_IO_OPT_MTU, MCAP_CC_MTU,
+ BT_IO_OPT_SEC_LEVEL, sec,
+ BT_IO_OPT_MODE, L2CAP_MODE_ERTM,
+ BT_IO_OPT_INVALID);
+ if (!mi->ccio) {
+ error("%s", (*gerr)->message);
+ g_free(mi);
+ return NULL;
+ }
+
+ /* Listen incoming connections in data channels */
+ mi->dcio = bt_io_listen(connect_dc_event_cb, NULL, mi,
+ NULL, gerr,
+ BT_IO_OPT_SOURCE_BDADDR, &mi->src,
+ BT_IO_OPT_PSM, dcpsm,
+ BT_IO_OPT_MTU, MCAP_DC_MTU,
+ BT_IO_OPT_SEC_LEVEL, sec,
+ BT_IO_OPT_INVALID);
+ if (!mi->dcio) {
+ g_io_channel_shutdown(mi->ccio, TRUE, NULL);
+ g_io_channel_unref(mi->ccio);
+ mi->ccio = NULL;
+ error("%s", (*gerr)->message);
+ g_free(mi);
+ return NULL;
+ }
+
+ /* Initialize random seed to generate mdlids for this instance */
+ srand(time(NULL));
+
+ return mcap_instance_ref(mi);
+}
+
+void mcap_release_instance(struct mcap_instance *mi)
+{
+ GSList *l;
+
+ if (!mi)
+ return;
+
+ if (mi->ccio) {
+ g_io_channel_shutdown(mi->ccio, TRUE, NULL);
+ g_io_channel_unref(mi->ccio);
+ mi->ccio = NULL;
+ }
+
+ if (mi->dcio) {
+ g_io_channel_shutdown(mi->dcio, TRUE, NULL);
+ g_io_channel_unref(mi->dcio);
+ mi->dcio = NULL;
+ }
+
+ for (l = mi->mcls; l; l = l->next) {
+ mcap_mcl_release(l->data);
+ mcap_mcl_unref(l->data);
+ }
+
+ g_slist_free(mi->mcls);
+ mi->mcls = NULL;
+
+ for (l = mi->cached; l; l = l->next) {
+ mcap_mcl_release(l->data);
+ mcap_mcl_unref(l->data);
+ }
+
+ g_slist_free(mi->cached);
+ mi->cached = NULL;
+}
+
+struct mcap_instance *mcap_instance_ref(struct mcap_instance *mi)
+{
+ mi->ref++;
+
+ DBG("mcap_instance_ref(%p): ref=%d", mi, mi->ref);
+
+ return mi;
+}
+
+void mcap_instance_unref(struct mcap_instance *mi)
+{
+ mi->ref--;
+
+ DBG("mcap_instance_unref(%p): ref=%d", mi, mi->ref);
+
+ if (mi->ref > 0)
+ return;
+
+ mcap_release_instance(mi);
+ g_free(mi);
+}
+
+uint16_t mcap_get_ctrl_psm(struct mcap_instance *mi, GError **err)
+{
+ uint16_t lpsm;
+
+ if (!(mi && mi->ccio)) {
+ g_set_error(err, MCAP_ERROR, MCAP_ERROR_INVALID_ARGS,
+ "Invalid MCAP instance");
+ return 0;
+ }
+
+ if (!bt_io_get(mi->ccio, err, BT_IO_OPT_PSM, &lpsm, BT_IO_OPT_INVALID))
+ return 0;
+
+ return lpsm;
+}
+
+uint16_t mcap_get_data_psm(struct mcap_instance *mi, GError **err)
+{
+ uint16_t lpsm;
+
+ if (!(mi && mi->dcio)) {
+ g_set_error(err, MCAP_ERROR, MCAP_ERROR_INVALID_ARGS,
+ "Invalid MCAP instance");
+ return 0;
+ }
+
+ if (!bt_io_get(mi->dcio, err, BT_IO_OPT_PSM, &lpsm, BT_IO_OPT_INVALID))
+ return 0;
+
+ return lpsm;
+}
+
+gboolean mcap_set_data_chan_mode(struct mcap_instance *mi, uint8_t mode,
+ GError **err)
+{
+ if (!(mi && mi->dcio)) {
+ g_set_error(err, MCAP_ERROR, MCAP_ERROR_INVALID_ARGS,
+ "Invalid MCAP instance");
+ return FALSE;
+ }
+
+ return bt_io_set(mi->dcio, err, BT_IO_OPT_MODE, mode,
+ BT_IO_OPT_INVALID);
+}
+
+struct mcap_mdl *mcap_mdl_ref(struct mcap_mdl *mdl)
+{
+ mdl->ref++;
+
+ DBG("mcap_mdl_ref(%p): ref=%d", mdl, mdl->ref);
+
+ return mdl;
+}
+
+void mcap_mdl_unref(struct mcap_mdl *mdl)
+{
+ mdl->ref--;
+
+ DBG("mcap_mdl_unref(%p): ref=%d", mdl, mdl->ref);
+
+ if (mdl->ref > 0)
+ return;
+
+ free_mdl(mdl);
+}
+
+
+static int send_sync_cmd(struct mcap_mcl *mcl, const void *buf, uint32_t size)
+{
+ int sock;
+
+ if (mcl->cc == NULL)
+ return -1;
+
+ sock = g_io_channel_unix_get_fd(mcl->cc);
+ return mcap_send_data(sock, buf, size);
+}
+
+static int send_unsupported_cap_req(struct mcap_mcl *mcl)
+{
+ mcap_md_sync_cap_rsp *cmd;
+ int sent;
+
+ cmd = g_new0(mcap_md_sync_cap_rsp, 1);
+ cmd->op = MCAP_MD_SYNC_CAP_RSP;
+ cmd->rc = MCAP_REQUEST_NOT_SUPPORTED;
+
+ sent = send_sync_cmd(mcl, cmd, sizeof(*cmd));
+ g_free(cmd);
+
+ return sent;
+}
+
+static int send_unsupported_set_req(struct mcap_mcl *mcl)
+{
+ mcap_md_sync_set_rsp *cmd;
+ int sent;
+
+ cmd = g_new0(mcap_md_sync_set_rsp, 1);
+ cmd->op = MCAP_MD_SYNC_SET_RSP;
+ cmd->rc = MCAP_REQUEST_NOT_SUPPORTED;
+
+ sent = send_sync_cmd(mcl, cmd, sizeof(*cmd));
+ g_free(cmd);
+
+ return sent;
+}
+
+static void reset_tmstamp(struct mcap_csp *csp, struct timespec *base_time,
+ uint64_t new_tmstamp)
+{
+ csp->base_tmstamp = new_tmstamp;
+ if (base_time)
+ csp->base_time = *base_time;
+ else
+ clock_gettime(CLK, &csp->base_time);
+}
+
+void mcap_sync_init(struct mcap_mcl *mcl)
+{
+ if (!mcl->mi->csp_enabled) {
+ mcl->csp = NULL;
+ return;
+ }
+
+ mcl->csp = g_new0(struct mcap_csp, 1);
+
+ mcl->csp->rem_req_acc = 10000; /* safe divisor */
+ mcl->csp->set_data = NULL;
+ mcl->csp->csp_priv_data = NULL;
+
+ reset_tmstamp(mcl->csp, NULL, 0);
+}
+
+void mcap_sync_stop(struct mcap_mcl *mcl)
+{
+ if (!mcl->csp)
+ return;
+
+ if (mcl->csp->ind_timer)
+ g_source_remove(mcl->csp->ind_timer);
+
+ if (mcl->csp->set_timer)
+ g_source_remove(mcl->csp->set_timer);
+
+ if (mcl->csp->set_data)
+ g_free(mcl->csp->set_data);
+
+ if (mcl->csp->csp_priv_data)
+ g_free(mcl->csp->csp_priv_data);
+
+ mcl->csp->ind_timer = 0;
+ mcl->csp->set_timer = 0;
+ mcl->csp->set_data = NULL;
+ mcl->csp->csp_priv_data = NULL;
+
+ g_free(mcl->csp);
+ mcl->csp = NULL;
+}
+
+static uint64_t time_us(struct timespec *tv)
+{
+ return tv->tv_sec * 1000000 + tv->tv_nsec / 1000;
+}
+
+static int64_t bt2us(int bt)
+{
+ return bt * 312.5;
+}
+
+static int bt2ms(int bt)
+{
+ return bt * 312.5 / 1000;
+}
+
+static int btoffset(uint32_t btclk1, uint32_t btclk2)
+{
+ int offset = btclk2 - btclk1;
+
+ if (offset <= -MCAP_BTCLOCK_HALF)
+ offset += MCAP_BTCLOCK_FIELD;
+ else if (offset > MCAP_BTCLOCK_HALF)
+ offset -= MCAP_BTCLOCK_FIELD;
+
+ return offset;
+}
+
+static int btdiff(uint32_t btclk1, uint32_t btclk2)
+{
+ return btoffset(btclk1, btclk2);
+}
+
+static gboolean valid_btclock(uint32_t btclk)
+{
+ return btclk <= MCAP_BTCLOCK_MAX;
+}
+
+/* This call may fail; either deal with retry or use read_btclock_retry */
+static gboolean read_btclock(struct mcap_mcl *mcl, uint32_t *btclock,
+ uint16_t *btaccuracy)
+{
+/* int which = 1;
+ struct btd_adapter *adapter;
+
+ adapter = adapter_find(&mcl->mi->src);
+ if (!adapter)
+ return FALSE;
+
+ if (btd_adapter_read_clock(adapter, &mcl->addr, which, 1000,
+ btclock, btaccuracy) < 0)
+ return FALSE;
+
+ return TRUE;
+*/
+ return FALSE;
+}
+
+static gboolean read_btclock_retry(struct mcap_mcl *mcl, uint32_t *btclock,
+ uint16_t *btaccuracy)
+{
+ int retries = 5;
+
+ while (--retries >= 0) {
+ if (read_btclock(mcl, btclock, btaccuracy))
+ return TRUE;
+ DBG("CSP: retrying to read bt clock...");
+ }
+
+ return FALSE;
+}
+
+static gboolean get_btrole(struct mcap_mcl *mcl)
+{
+ int sock, flags;
+ socklen_t len;
+
+ if (mcl->cc == NULL)
+ return -1;
+
+ sock = g_io_channel_unix_get_fd(mcl->cc);
+ len = sizeof(flags);
+
+ if (getsockopt(sock, SOL_L2CAP, L2CAP_LM, &flags, &len))
+ DBG("CSP: could not read role");
+
+ return flags & L2CAP_LM_MASTER;
+}
+
+uint64_t mcap_get_timestamp(struct mcap_mcl *mcl,
+ struct timespec *given_time)
+{
+ struct timespec now;
+ uint64_t tmstamp;
+
+ if (!mcl->csp)
+ return MCAP_TMSTAMP_DONTSET;
+
+ if (given_time)
+ now = *given_time;
+ else
+ clock_gettime(CLK, &now);
+
+ tmstamp = time_us(&now) - time_us(&mcl->csp->base_time)
+ + mcl->csp->base_tmstamp;
+
+ return tmstamp;
+}
+
+uint32_t mcap_get_btclock(struct mcap_mcl *mcl)
+{
+ uint32_t btclock;
+ uint16_t accuracy;
+
+ if (!mcl->csp)
+ return MCAP_BTCLOCK_IMMEDIATE;
+
+ if (!read_btclock_retry(mcl, &btclock, &accuracy))
+ btclock = 0xffffffff;
+
+ return btclock;
+}
+
+static gboolean initialize_caps(struct mcap_mcl *mcl)
+{
+ struct timespec t1, t2;
+ int latencies[SAMPLE_COUNT];
+ int latency, avg, dev;
+ uint32_t btclock;
+ uint16_t btaccuracy;
+ int i;
+ int retries;
+
+ clock_getres(CLK, &t1);
+
+ _caps.ts_res = time_us(&t1);
+ if (_caps.ts_res < 1)
+ _caps.ts_res = 1;
+
+ _caps.ts_acc = 20; /* ppm, estimated */
+
+ /* A little exercise before measuing latency */
+ clock_gettime(CLK, &t1);
+ read_btclock_retry(mcl, &btclock, &btaccuracy);
+
+ /* Read clock a number of times and measure latency */
+ avg = 0;
+ i = 0;
+ retries = MAX_RETRIES;
+ while (i < SAMPLE_COUNT && retries > 0) {
+ clock_gettime(CLK, &t1);
+ if (!read_btclock(mcl, &btclock, &btaccuracy)) {
+ retries--;
+ continue;
+ }
+ clock_gettime(CLK, &t2);
+
+ latency = time_us(&t2) - time_us(&t1);
+ latencies[i] = latency;
+ avg += latency;
+ i++;
+ }
+
+ if (retries <= 0)
+ return FALSE;
+
+ /* Calculate average and deviation */
+ avg /= SAMPLE_COUNT;
+ dev = 0;
+ for (i = 0; i < SAMPLE_COUNT; ++i)
+ dev += abs(latencies[i] - avg);
+ dev /= SAMPLE_COUNT;
+
+ /* Calculate corrected average, without 'freak' latencies */
+ latency = 0;
+ for (i = 0; i < SAMPLE_COUNT; ++i) {
+ if (latencies[i] > (avg + dev * 6))
+ latency += avg;
+ else
+ latency += latencies[i];
+ }
+ latency /= SAMPLE_COUNT;
+
+ _caps.latency = latency;
+ _caps.preempt_thresh = latency * 4;
+ _caps.syncleadtime_ms = latency * 50 / 1000;
+
+ csp_caps_initialized = TRUE;
+ return TRUE;
+}
+
+static struct csp_caps *caps(struct mcap_mcl *mcl)
+{
+ if (!csp_caps_initialized)
+ if (!initialize_caps(mcl)) {
+ /* Temporary failure in reading BT clock */
+ return NULL;
+ }
+
+ return &_caps;
+}
+
+static int send_sync_cap_rsp(struct mcap_mcl *mcl, uint8_t rspcode,
+ uint8_t btclockres, uint16_t synclead,
+ uint16_t tmstampres, uint16_t tmstampacc)
+{
+ mcap_md_sync_cap_rsp *rsp;
+ int sent;
+
+ rsp = g_new0(mcap_md_sync_cap_rsp, 1);
+
+ rsp->op = MCAP_MD_SYNC_CAP_RSP;
+ rsp->rc = rspcode;
+
+ rsp->btclock = btclockres;
+ rsp->sltime = htons(synclead);
+ rsp->timestnr = htons(tmstampres);
+ rsp->timestna = htons(tmstampacc);
+
+ sent = send_sync_cmd(mcl, rsp, sizeof(*rsp));
+ g_free(rsp);
+
+ return sent;
+}
+
+static void proc_sync_cap_req(struct mcap_mcl *mcl, uint8_t *cmd, uint32_t len)
+{
+ mcap_md_sync_cap_req *req;
+ uint16_t required_accuracy;
+ uint16_t our_accuracy;
+ uint32_t btclock;
+ uint16_t btres;
+
+ if (len != sizeof(mcap_md_sync_cap_req)) {
+ send_sync_cap_rsp(mcl, MCAP_INVALID_PARAM_VALUE,
+ 0, 0, 0, 0);
+ return;
+ }
+
+ if (!caps(mcl)) {
+ send_sync_cap_rsp(mcl, MCAP_RESOURCE_UNAVAILABLE,
+ 0, 0, 0, 0);
+ return;
+ }
+
+ req = (mcap_md_sync_cap_req *) cmd;
+ required_accuracy = ntohs(req->timest);
+ our_accuracy = caps(mcl)->ts_acc;
+ btres = 0;
+
+ if (required_accuracy < our_accuracy || required_accuracy < 1) {
+ send_sync_cap_rsp(mcl, MCAP_RESOURCE_UNAVAILABLE,
+ 0, 0, 0, 0);
+ return;
+ }
+
+ if (!read_btclock_retry(mcl, &btclock, &btres)) {
+ send_sync_cap_rsp(mcl, MCAP_RESOURCE_UNAVAILABLE,
+ 0, 0, 0, 0);
+ return;
+ }
+
+ mcl->csp->remote_caps = 1;
+ mcl->csp->rem_req_acc = required_accuracy;
+
+ send_sync_cap_rsp(mcl, MCAP_SUCCESS, btres,
+ caps(mcl)->syncleadtime_ms,
+ caps(mcl)->ts_res, our_accuracy);
+}
+
+static int send_sync_set_rsp(struct mcap_mcl *mcl, uint8_t rspcode,
+ uint32_t btclock, uint64_t timestamp,
+ uint16_t tmstampres)
+{
+ mcap_md_sync_set_rsp *rsp;
+ int sent;
+
+ rsp = g_new0(mcap_md_sync_set_rsp, 1);
+
+ rsp->op = MCAP_MD_SYNC_SET_RSP;
+ rsp->rc = rspcode;
+ rsp->btclock = htonl(btclock);
+ rsp->timestst = hton64(timestamp);
+ rsp->timestsa = htons(tmstampres);
+
+ sent = send_sync_cmd(mcl, rsp, sizeof(*rsp));
+ g_free(rsp);
+
+ return sent;
+}
+
+static gboolean get_all_clocks(struct mcap_mcl *mcl, uint32_t *btclock,
+ struct timespec *base_time,
+ uint64_t *timestamp)
+{
+ int latency;
+ int retry = 5;
+ uint16_t btres;
+ struct timespec t0;
+
+ if (!caps(mcl))
+ return FALSE;
+
+ latency = caps(mcl)->preempt_thresh + 1;
+
+ while (latency > caps(mcl)->preempt_thresh && --retry >= 0) {
+
+ clock_gettime(CLK, &t0);
+
+ if (!read_btclock(mcl, btclock, &btres))
+ continue;
+
+ clock_gettime(CLK, base_time);
+
+ /* Tries to detect preemption between clock_gettime
+ * and read_btclock by measuring transaction time
+ */
+ latency = time_us(base_time) - time_us(&t0);
+ }
+
+ *timestamp = mcap_get_timestamp(mcl, base_time);
+
+ return TRUE;
+}
+
+static gboolean sync_send_indication(gpointer user_data)
+{
+ struct mcap_mcl *mcl;
+ mcap_md_sync_info_ind *cmd;
+ uint32_t btclock;
+ uint64_t tmstamp;
+ struct timespec base_time;
+ int sent;
+
+ if (!user_data)
+ return FALSE;
+
+ mcl = user_data;
+
+ if (!caps(mcl))
+ return FALSE;
+
+ if (!get_all_clocks(mcl, &btclock, &base_time, &tmstamp))
+ return FALSE;
+
+ cmd = g_new0(mcap_md_sync_info_ind, 1);
+
+ cmd->op = MCAP_MD_SYNC_INFO_IND;
+ cmd->btclock = htonl(btclock);
+ cmd->timestst = hton64(tmstamp);
+ cmd->timestsa = htons(caps(mcl)->latency);
+
+ sent = send_sync_cmd(mcl, cmd, sizeof(*cmd));
+ g_free(cmd);
+
+ return !sent;
+}
+
+static gboolean proc_sync_set_req_phase2(gpointer user_data)
+{
+ struct mcap_mcl *mcl;
+ struct sync_set_data *data;
+ uint8_t update;
+ uint32_t sched_btclock;
+ uint64_t new_tmstamp;
+ int ind_freq;
+ int role;
+ uint32_t btclock;
+ uint64_t tmstamp;
+ struct timespec base_time;
+ uint16_t tmstampacc;
+ gboolean reset;
+ int delay;
+
+ if (!user_data)
+ return FALSE;
+
+ mcl = user_data;
+
+ if (!mcl->csp->set_data)
+ return FALSE;
+
+ btclock = 0;
+ data = mcl->csp->set_data;
+ update = data->update;
+ sched_btclock = data->sched_btclock;
+ new_tmstamp = data->timestamp;
+ ind_freq = data->ind_freq;
+ role = data->role;
+
+ if (!caps(mcl)) {
+ send_sync_set_rsp(mcl, MCAP_UNSPECIFIED_ERROR, 0, 0, 0);
+ return FALSE;
+ }
+
+ if (!get_all_clocks(mcl, &btclock, &base_time, &tmstamp)) {
+ send_sync_set_rsp(mcl, MCAP_UNSPECIFIED_ERROR, 0, 0, 0);
+ return FALSE;
+ }
+
+ if (get_btrole(mcl) != role) {
+ send_sync_set_rsp(mcl, MCAP_INVALID_OPERATION, 0, 0, 0);
+ return FALSE;
+ }
+
+ reset = (new_tmstamp != MCAP_TMSTAMP_DONTSET);
+
+ if (reset) {
+ if (sched_btclock != MCAP_BTCLOCK_IMMEDIATE) {
+ delay = bt2us(btdiff(sched_btclock, btclock));
+ if (delay >= 0 || ((new_tmstamp - delay) > 0)) {
+ new_tmstamp += delay;
+ DBG("CSP: reset w/ delay %dus, compensated",
+ delay);
+ } else
+ DBG("CSP: reset w/ delay %dus, uncompensated",
+ delay);
+ }
+
+ reset_tmstamp(mcl->csp, &base_time, new_tmstamp);
+ tmstamp = new_tmstamp;
+ }
+
+ tmstampacc = caps(mcl)->latency + caps(mcl)->ts_acc;
+
+ if (mcl->csp->ind_timer) {
+ g_source_remove(mcl->csp->ind_timer);
+ mcl->csp->ind_timer = 0;
+ }
+
+ if (update) {
+ int when = ind_freq + caps(mcl)->syncleadtime_ms;
+ mcl->csp->ind_timer = g_timeout_add(when,
+ sync_send_indication,
+ mcl);
+ }
+
+ send_sync_set_rsp(mcl, MCAP_SUCCESS, btclock, tmstamp, tmstampacc);
+
+ /* First indication after set is immediate */
+ if (update)
+ sync_send_indication(mcl);
+
+ return FALSE;
+}
+
+static void proc_sync_set_req(struct mcap_mcl *mcl, uint8_t *cmd, uint32_t len)
+{
+ mcap_md_sync_set_req *req;
+ uint32_t sched_btclock, cur_btclock;
+ uint16_t btres;
+ uint8_t update;
+ uint64_t timestamp;
+ struct sync_set_data *set_data;
+ int phase2_delay, ind_freq, when;
+
+ if (len != sizeof(mcap_md_sync_set_req)) {
+ send_sync_set_rsp(mcl, MCAP_INVALID_PARAM_VALUE, 0, 0, 0);
+ return;
+ }
+
+ req = (mcap_md_sync_set_req *) cmd;
+ sched_btclock = ntohl(req->btclock);
+ update = req->timestui;
+ timestamp = ntoh64(req->timestst);
+ cur_btclock = 0;
+
+ if (sched_btclock != MCAP_BTCLOCK_IMMEDIATE &&
+ !valid_btclock(sched_btclock)) {
+ send_sync_set_rsp(mcl, MCAP_INVALID_PARAM_VALUE, 0, 0, 0);
+ return;
+ }
+
+ if (update > 1) {
+ send_sync_set_rsp(mcl, MCAP_INVALID_PARAM_VALUE, 0, 0, 0);
+ return;
+ }
+
+ if (!mcl->csp->remote_caps) {
+ /* Remote side did not ask our capabilities yet */
+ send_sync_set_rsp(mcl, MCAP_INVALID_PARAM_VALUE, 0, 0, 0);
+ return;
+ }
+
+ if (!caps(mcl)) {
+ send_sync_set_rsp(mcl, MCAP_UNSPECIFIED_ERROR, 0, 0, 0);
+ return;
+ }
+
+ if (!read_btclock_retry(mcl, &cur_btclock, &btres)) {
+ send_sync_set_rsp(mcl, MCAP_UNSPECIFIED_ERROR, 0, 0, 0);
+ return;
+ }
+
+ if (sched_btclock == MCAP_BTCLOCK_IMMEDIATE)
+ phase2_delay = 0;
+ else {
+ phase2_delay = btdiff(cur_btclock, sched_btclock);
+
+ if (phase2_delay < 0) {
+ /* can not reset in the past tense */
+ send_sync_set_rsp(mcl, MCAP_INVALID_PARAM_VALUE,
+ 0, 0, 0);
+ return;
+ }
+
+ /* Convert to miliseconds */
+ phase2_delay = bt2ms(phase2_delay);
+
+ if (phase2_delay > 61*1000) {
+ /* More than 60 seconds in the future */
+ send_sync_set_rsp(mcl, MCAP_INVALID_PARAM_VALUE,
+ 0, 0, 0);
+ return;
+ } else if (phase2_delay < caps(mcl)->latency / 1000) {
+ /* Too fast for us to do in time */
+ send_sync_set_rsp(mcl, MCAP_INVALID_PARAM_VALUE,
+ 0, 0, 0);
+ return;
+ }
+ }
+
+ if (update) {
+ /* Indication frequency: required accuracy divided by ours */
+ /* Converted to milisseconds */
+ ind_freq = (1000 * mcl->csp->rem_req_acc) / caps(mcl)->ts_acc;
+
+ if (ind_freq < MAX(caps(mcl)->latency * 2 / 1000, 100)) {
+ /* Too frequent, we can't handle */
+ send_sync_set_rsp(mcl, MCAP_INVALID_PARAM_VALUE,
+ 0, 0, 0);
+ return;
+ }
+
+ DBG("CSP: indication every %dms", ind_freq);
+ } else
+ ind_freq = 0;
+
+ if (mcl->csp->ind_timer) {
+ /* Old indications are no longer sent */
+ g_source_remove(mcl->csp->ind_timer);
+ mcl->csp->ind_timer = 0;
+ }
+
+ if (!mcl->csp->set_data)
+ mcl->csp->set_data = g_new0(struct sync_set_data, 1);
+
+ set_data = (struct sync_set_data *) mcl->csp->set_data;
+
+ set_data->update = update;
+ set_data->sched_btclock = sched_btclock;
+ set_data->timestamp = timestamp;
+ set_data->ind_freq = ind_freq;
+ set_data->role = get_btrole(mcl);
+
+ /* TODO is there some way to schedule a call based directly on
+ * a BT clock value, instead of this estimation that uses
+ * the SO clock? */
+
+ if (phase2_delay > 0) {
+ when = phase2_delay + caps(mcl)->syncleadtime_ms;
+ mcl->csp->set_timer = g_timeout_add(when,
+ proc_sync_set_req_phase2,
+ mcl);
+ } else
+ proc_sync_set_req_phase2(mcl);
+
+ /* First indication is immediate */
+ if (update)
+ sync_send_indication(mcl);
+}
+
+static void proc_sync_cap_rsp(struct mcap_mcl *mcl, uint8_t *cmd, uint32_t len)
+{
+ mcap_md_sync_cap_rsp *rsp;
+ uint8_t mcap_err;
+ uint8_t btclockres;
+ uint16_t synclead;
+ uint16_t tmstampres;
+ uint16_t tmstampacc;
+ struct mcap_sync_cap_cbdata *cbdata;
+ mcap_sync_cap_cb cb;
+ gpointer user_data;
+
+ if (mcl->csp->csp_req != MCAP_MD_SYNC_CAP_REQ) {
+ DBG("CSP: got unexpected cap respose");
+ return;
+ }
+
+ if (!mcl->csp->csp_priv_data) {
+ DBG("CSP: no priv data for cap respose");
+ return;
+ }
+
+ cbdata = mcl->csp->csp_priv_data;
+ cb = cbdata->cb;
+ user_data = cbdata->user_data;
+ g_free(cbdata);
+
+ mcl->csp->csp_priv_data = NULL;
+ mcl->csp->csp_req = 0;
+
+ if (len != sizeof(mcap_md_sync_cap_rsp)) {
+ DBG("CSP: got corrupted cap respose");
+ return;
+ }
+
+ rsp = (mcap_md_sync_cap_rsp *) cmd;
+ mcap_err = rsp->rc;
+ btclockres = rsp->btclock;
+ synclead = ntohs(rsp->sltime);
+ tmstampres = ntohs(rsp->timestnr);
+ tmstampacc = ntohs(rsp->timestna);
+
+ if (!mcap_err)
+ mcl->csp->local_caps = TRUE;
+
+ cb(mcl, mcap_err, btclockres, synclead, tmstampres, tmstampacc, NULL,
+ user_data);
+}
+
+static void proc_sync_set_rsp(struct mcap_mcl *mcl, uint8_t *cmd, uint32_t len)
+{
+ mcap_md_sync_set_rsp *rsp;
+ uint8_t mcap_err;
+ uint32_t btclock;
+ uint64_t timestamp;
+ uint16_t accuracy;
+ struct mcap_sync_set_cbdata *cbdata;
+ mcap_sync_set_cb cb;
+ gpointer user_data;
+
+ if (mcl->csp->csp_req != MCAP_MD_SYNC_SET_REQ) {
+ DBG("CSP: got unexpected set respose");
+ return;
+ }
+
+ if (!mcl->csp->csp_priv_data) {
+ DBG("CSP: no priv data for set respose");
+ return;
+ }
+
+ cbdata = mcl->csp->csp_priv_data;
+ cb = cbdata->cb;
+ user_data = cbdata->user_data;
+ g_free(cbdata);
+
+ mcl->csp->csp_priv_data = NULL;
+ mcl->csp->csp_req = 0;
+
+ if (len != sizeof(mcap_md_sync_set_rsp)) {
+ DBG("CSP: got corrupted set respose");
+ return;
+ }
+
+ rsp = (mcap_md_sync_set_rsp *) cmd;
+ mcap_err = rsp->rc;
+ btclock = ntohl(rsp->btclock);
+ timestamp = ntoh64(rsp->timestst);
+ accuracy = ntohs(rsp->timestsa);
+
+ if (!mcap_err && !valid_btclock(btclock))
+ mcap_err = MCAP_ERROR_INVALID_ARGS;
+
+ cb(mcl, mcap_err, btclock, timestamp, accuracy, NULL, user_data);
+}
+
+static void proc_sync_info_ind(struct mcap_mcl *mcl, uint8_t *cmd, uint32_t len)
+{
+ mcap_md_sync_info_ind *req;
+ struct sync_info_ind_data data;
+ uint32_t btclock;
+
+ if (!mcl->csp->ind_expected) {
+ DBG("CSP: received unexpected info indication");
+ return;
+ }
+
+ if (len != sizeof(mcap_md_sync_info_ind))
+ return;
+
+ req = (mcap_md_sync_info_ind *) cmd;
+
+ btclock = ntohl(req->btclock);
+
+ if (!valid_btclock(btclock))
+ return;
+
+ data.btclock = btclock;
+ data.timestamp = ntoh64(req->timestst);
+ data.accuracy = ntohs(req->timestsa);
+
+ if (mcl->mi->mcl_sync_infoind_cb)
+ mcl->mi->mcl_sync_infoind_cb(mcl, &data);
+}
+
+void proc_sync_cmd(struct mcap_mcl *mcl, uint8_t *cmd, uint32_t len)
+{
+ if (!mcl->mi->csp_enabled || !mcl->csp) {
+ switch (cmd[0]) {
+ case MCAP_MD_SYNC_CAP_REQ:
+ send_unsupported_cap_req(mcl);
+ break;
+ case MCAP_MD_SYNC_SET_REQ:
+ send_unsupported_set_req(mcl);
+ break;
+ }
+ return;
+ }
+
+ switch (cmd[0]) {
+ case MCAP_MD_SYNC_CAP_REQ:
+ proc_sync_cap_req(mcl, cmd, len);
+ break;
+ case MCAP_MD_SYNC_CAP_RSP:
+ proc_sync_cap_rsp(mcl, cmd, len);
+ break;
+ case MCAP_MD_SYNC_SET_REQ:
+ proc_sync_set_req(mcl, cmd, len);
+ break;
+ case MCAP_MD_SYNC_SET_RSP:
+ proc_sync_set_rsp(mcl, cmd, len);
+ break;
+ case MCAP_MD_SYNC_INFO_IND:
+ proc_sync_info_ind(mcl, cmd, len);
+ break;
+ }
+}
+
+void mcap_sync_cap_req(struct mcap_mcl *mcl, uint16_t reqacc,
+ mcap_sync_cap_cb cb, gpointer user_data,
+ GError **err)
+{
+ struct mcap_sync_cap_cbdata *cbdata;
+ mcap_md_sync_cap_req *cmd;
+
+ if (!mcl->mi->csp_enabled || !mcl->csp) {
+ g_set_error(err,
+ MCAP_CSP_ERROR,
+ MCAP_ERROR_RESOURCE_UNAVAILABLE,
+ "CSP not enabled for the instance");
+ return;
+ }
+
+ if (mcl->csp->csp_req) {
+ g_set_error(err,
+ MCAP_CSP_ERROR,
+ MCAP_ERROR_RESOURCE_UNAVAILABLE,
+ "Pending CSP request");
+ return;
+ }
+
+ mcl->csp->csp_req = MCAP_MD_SYNC_CAP_REQ;
+ cmd = g_new0(mcap_md_sync_cap_req, 1);
+
+ cmd->op = MCAP_MD_SYNC_CAP_REQ;
+ cmd->timest = htons(reqacc);
+
+ cbdata = g_new0(struct mcap_sync_cap_cbdata, 1);
+ cbdata->cb = cb;
+ cbdata->user_data = user_data;
+ mcl->csp->csp_priv_data = cbdata;
+
+ send_sync_cmd(mcl, cmd, sizeof(*cmd));
+
+ g_free(cmd);
+}
+
+void mcap_sync_set_req(struct mcap_mcl *mcl, uint8_t update, uint32_t btclock,
+ uint64_t timestamp, mcap_sync_set_cb cb,
+ gpointer user_data, GError **err)
+{
+ mcap_md_sync_set_req *cmd;
+ struct mcap_sync_set_cbdata *cbdata;
+
+ if (!mcl->mi->csp_enabled || !mcl->csp) {
+ g_set_error(err,
+ MCAP_CSP_ERROR,
+ MCAP_ERROR_RESOURCE_UNAVAILABLE,
+ "CSP not enabled for the instance");
+ return;
+ }
+
+ if (!mcl->csp->local_caps) {
+ g_set_error(err,
+ MCAP_CSP_ERROR,
+ MCAP_ERROR_RESOURCE_UNAVAILABLE,
+ "Did not get CSP caps from slave yet");
+ return;
+ }
+
+ if (mcl->csp->csp_req) {
+ g_set_error(err,
+ MCAP_CSP_ERROR,
+ MCAP_ERROR_RESOURCE_UNAVAILABLE,
+ "Pending CSP request");
+ return;
+ }
+
+ mcl->csp->csp_req = MCAP_MD_SYNC_SET_REQ;
+ cmd = g_new0(mcap_md_sync_set_req, 1);
+
+ cmd->op = MCAP_MD_SYNC_SET_REQ;
+ cmd->timestui = update;
+ cmd->btclock = htonl(btclock);
+ cmd->timestst = hton64(timestamp);
+
+ mcl->csp->ind_expected = update;
+
+ cbdata = g_new0(struct mcap_sync_set_cbdata, 1);
+ cbdata->cb = cb;
+ cbdata->user_data = user_data;
+ mcl->csp->csp_priv_data = cbdata;
+
+ send_sync_cmd(mcl, cmd, sizeof(*cmd));
+
+ g_free(cmd);
+}
+
+void mcap_enable_csp(struct mcap_instance *mi)
+{
+ mi->csp_enabled = TRUE;
+}
+
+void mcap_disable_csp(struct mcap_instance *mi)
+{
+ mi->csp_enabled = FALSE;
+}
diff --git a/android/mcap-lib.h b/android/mcap-lib.h
new file mode 100644
index 0000000..6d131bd
--- /dev/null
+++ b/android/mcap-lib.h
@@ -0,0 +1,439 @@
+/*
+ *
+ * BlueZ - Bluetooth protocol stack for Linux
+ *
+ * Copyright (C) 2014 Intel Corporation. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ *
+ */
+
+#define MCAP_VERSION 0x0100 /* current version 01.00 */
+
+/* bytes to get MCAP Supported Procedures */
+#define MCAP_SUP_PROC 0x06
+
+/* maximum transmission unit for channels */
+#define MCAP_CC_MTU 48
+#define MCAP_DC_MTU 65535
+
+/* MCAP Standard Op Codes */
+#define MCAP_ERROR_RSP 0x00
+#define MCAP_MD_CREATE_MDL_REQ 0x01
+#define MCAP_MD_CREATE_MDL_RSP 0x02
+#define MCAP_MD_RECONNECT_MDL_REQ 0x03
+#define MCAP_MD_RECONNECT_MDL_RSP 0x04
+#define MCAP_MD_ABORT_MDL_REQ 0x05
+#define MCAP_MD_ABORT_MDL_RSP 0x06
+#define MCAP_MD_DELETE_MDL_REQ 0x07
+#define MCAP_MD_DELETE_MDL_RSP 0x08
+
+/* MCAP Clock Sync Op Codes */
+#define MCAP_MD_SYNC_CAP_REQ 0x11
+#define MCAP_MD_SYNC_CAP_RSP 0x12
+#define MCAP_MD_SYNC_SET_REQ 0x13
+#define MCAP_MD_SYNC_SET_RSP 0x14
+#define MCAP_MD_SYNC_INFO_IND 0x15
+
+/* MCAP Response codes */
+#define MCAP_SUCCESS 0x00
+#define MCAP_INVALID_OP_CODE 0x01
+#define MCAP_INVALID_PARAM_VALUE 0x02
+#define MCAP_INVALID_MDEP 0x03
+#define MCAP_MDEP_BUSY 0x04
+#define MCAP_INVALID_MDL 0x05
+#define MCAP_MDL_BUSY 0x06
+#define MCAP_INVALID_OPERATION 0x07
+#define MCAP_RESOURCE_UNAVAILABLE 0x08
+#define MCAP_UNSPECIFIED_ERROR 0x09
+#define MCAP_REQUEST_NOT_SUPPORTED 0x0A
+#define MCAP_CONFIGURATION_REJECTED 0x0B
+
+/* MDL IDs */
+#define MCAP_MDLID_RESERVED 0x0000
+#define MCAP_MDLID_INITIAL 0x0001
+#define MCAP_MDLID_FINAL 0xFEFF
+#define MCAP_ALL_MDLIDS 0xFFFF
+
+/* MDEP IDs */
+#define MCAP_MDEPID_INITIAL 0x00
+#define MCAP_MDEPID_FINAL 0x7F
+
+/* CSP special values */
+#define MCAP_BTCLOCK_IMMEDIATE 0xffffffffUL
+#define MCAP_TMSTAMP_DONTSET 0xffffffffffffffffULL
+#define MCAP_BTCLOCK_MAX 0x0fffffff
+#define MCAP_BTCLOCK_FIELD (MCAP_BTCLOCK_MAX + 1)
+
+#define MCAP_CTRL_CACHED 0x01 /* MCL is cached */
+#define MCAP_CTRL_STD_OP 0x02 /* Support for standard op codes */
+#define MCAP_CTRL_SYNC_OP 0x04 /* Support for synchronization commands */
+#define MCAP_CTRL_CONN 0x08 /* MCL is in connecting process */
+#define MCAP_CTRL_FREE 0x10 /* MCL is marked as releasable */
+#define MCAP_CTRL_NOCACHE 0x20 /* MCL is marked as not cacheable */
+
+/*
+ * MCAP Request Packet Format
+ */
+
+typedef struct {
+ uint8_t op;
+ uint16_t mdl;
+ uint8_t mdep;
+ uint8_t conf;
+} __attribute__ ((packed)) mcap_md_create_mdl_req;
+
+typedef struct {
+ uint8_t op;
+ uint16_t mdl;
+} __attribute__ ((packed)) mcap_md_req;
+
+/*
+ * MCAP Response Packet Format
+ */
+
+typedef struct {
+ uint8_t op;
+ uint8_t rc;
+ uint16_t mdl;
+ uint8_t data[0];
+} __attribute__ ((packed)) mcap_rsp;
+
+/*
+ * MCAP Clock Synchronization Protocol
+ */
+
+typedef struct {
+ uint8_t op;
+ uint16_t timest;
+} __attribute__ ((packed)) mcap_md_sync_cap_req;
+
+typedef struct {
+ uint8_t op;
+ uint8_t rc;
+} __attribute__ ((packed)) mcap_md_sync_rsp;
+
+typedef struct {
+ uint8_t op;
+ uint8_t rc;
+ uint8_t btclock;
+ uint16_t sltime;
+ uint16_t timestnr;
+ uint16_t timestna;
+} __attribute__ ((packed)) mcap_md_sync_cap_rsp;
+
+typedef struct {
+ uint8_t op;
+ uint8_t timestui;
+ uint32_t btclock;
+ uint64_t timestst;
+} __attribute__ ((packed)) mcap_md_sync_set_req;
+
+typedef struct {
+ int8_t op;
+ uint8_t rc;
+ uint32_t btclock;
+ uint64_t timestst;
+ uint16_t timestsa;
+} __attribute__ ((packed)) mcap_md_sync_set_rsp;
+
+typedef struct {
+ uint8_t op;
+ uint32_t btclock;
+ uint64_t timestst;
+ uint16_t timestsa;
+} __attribute__ ((packed)) mcap_md_sync_info_ind;
+
+typedef enum {
+/* MCAP Error Response Codes */
+ MCAP_ERROR_INVALID_OP_CODE = 1,
+ MCAP_ERROR_INVALID_PARAM_VALUE,
+ MCAP_ERROR_INVALID_MDEP,
+ MCAP_ERROR_MDEP_BUSY,
+ MCAP_ERROR_INVALID_MDL,
+ MCAP_ERROR_MDL_BUSY,
+ MCAP_ERROR_INVALID_OPERATION,
+ MCAP_ERROR_RESOURCE_UNAVAILABLE,
+ MCAP_ERROR_UNSPECIFIED_ERROR,
+ MCAP_ERROR_REQUEST_NOT_SUPPORTED,
+ MCAP_ERROR_CONFIGURATION_REJECTED,
+/* MCAP Internal Errors */
+ MCAP_ERROR_INVALID_ARGS,
+ MCAP_ERROR_ALREADY_EXISTS,
+ MCAP_ERROR_REQ_IGNORED,
+ MCAP_ERROR_MCL_CLOSED,
+ MCAP_ERROR_FAILED
+} McapError;
+
+typedef enum {
+ MCAP_MDL_CB_INVALID,
+ MCAP_MDL_CB_CONNECTED, /* mcap_mdl_event_cb */
+ MCAP_MDL_CB_CLOSED, /* mcap_mdl_event_cb */
+ MCAP_MDL_CB_DELETED, /* mcap_mdl_event_cb */
+ MCAP_MDL_CB_ABORTED, /* mcap_mdl_event_cb */
+ MCAP_MDL_CB_REMOTE_CONN_REQ, /* mcap_remote_mdl_conn_req_cb */
+ MCAP_MDL_CB_REMOTE_RECONN_REQ /* mcap_remote_mdl_reconn_req_cb */
+} McapMclCb;
+
+typedef enum {
+ MCL_CONNECTED,
+ MCL_PENDING,
+ MCL_ACTIVE,
+ MCL_IDLE
+} MCLState;
+
+typedef enum {
+ MCL_ACCEPTOR,
+ MCL_INITIATOR
+} MCLRole;
+
+typedef enum {
+ MCL_AVAILABLE,
+ MCL_WAITING_RSP
+} MCAPCtrl;
+
+typedef enum {
+ MDL_WAITING,
+ MDL_CONNECTED,
+ MDL_DELETING,
+ MDL_CLOSED
+} MDLState;
+
+struct mcap_csp;
+struct mcap_mdl_op_cb;
+struct mcap_instance;
+struct mcap_mcl;
+struct mcap_mdl;
+struct sync_info_ind_data;
+
+/************ Callbacks ************/
+
+/* MDL callbacks */
+
+typedef void (* mcap_mdl_event_cb) (struct mcap_mdl *mdl, gpointer data);
+typedef void (* mcap_mdl_operation_conf_cb) (struct mcap_mdl *mdl, uint8_t conf,
+ GError *err, gpointer data);
+typedef void (* mcap_mdl_operation_cb) (struct mcap_mdl *mdl, GError *err,
+ gpointer data);
+typedef void (* mcap_mdl_notify_cb) (GError *err, gpointer data);
+
+/* Next function should return an MCAP appropriate response code */
+typedef uint8_t (* mcap_remote_mdl_conn_req_cb) (struct mcap_mcl *mcl,
+ uint8_t mdepid, uint16_t mdlid,
+ uint8_t *conf, gpointer data);
+typedef uint8_t (* mcap_remote_mdl_reconn_req_cb) (struct mcap_mdl *mdl,
+ gpointer data);
+
+/* MCL callbacks */
+
+typedef void (* mcap_mcl_event_cb) (struct mcap_mcl *mcl, gpointer data);
+typedef void (* mcap_mcl_connect_cb) (struct mcap_mcl *mcl, GError *err,
+ gpointer data);
+
+/* CSP callbacks */
+
+typedef void (* mcap_info_ind_event_cb) (struct mcap_mcl *mcl,
+ struct sync_info_ind_data *data);
+
+typedef void (* mcap_sync_cap_cb) (struct mcap_mcl *mcl,
+ uint8_t mcap_err,
+ uint8_t btclockres,
+ uint16_t synclead,
+ uint16_t tmstampres,
+ uint16_t tmstampacc,
+ GError *err,
+ gpointer data);
+
+typedef void (* mcap_sync_set_cb) (struct mcap_mcl *mcl,
+ uint8_t mcap_err,
+ uint32_t btclock,
+ uint64_t timestamp,
+ uint16_t accuracy,
+ GError *err,
+ gpointer data);
+
+struct mcap_mdl_cb {
+ mcap_mdl_event_cb mdl_connected; /* Remote device has created a MDL */
+ mcap_mdl_event_cb mdl_closed; /* Remote device has closed a MDL */
+ mcap_mdl_event_cb mdl_deleted; /* Remote device requested deleting a MDL */
+ mcap_mdl_event_cb mdl_aborted; /* Remote device aborted the mdl creation */
+ mcap_remote_mdl_conn_req_cb mdl_conn_req; /* Remote device requested creating a MDL */
+ mcap_remote_mdl_reconn_req_cb mdl_reconn_req; /* Remote device requested reconnecting a MDL */
+ gpointer user_data; /* User data */
+};
+
+struct mcap_instance {
+ bdaddr_t src; /* Source address */
+ GIOChannel *ccio; /* Control Channel IO */
+ GIOChannel *dcio; /* Data Channel IO */
+ GSList *mcls; /* MCAP instance list */
+ GSList *cached; /* List with all cached MCLs (MAX_CACHED macro) */
+ BtIOSecLevel sec; /* Security level */
+ mcap_mcl_event_cb mcl_connected_cb; /* New MCL connected */
+ mcap_mcl_event_cb mcl_reconnected_cb; /* Old MCL has been reconnected */
+ mcap_mcl_event_cb mcl_disconnected_cb; /* MCL disconnected */
+ mcap_mcl_event_cb mcl_uncached_cb; /* MCL has been removed from MCAP cache */
+ mcap_info_ind_event_cb mcl_sync_infoind_cb; /* (CSP Master) Received info indication */
+ gpointer user_data; /* Data to be provided in callbacks */
+ int ref; /* Reference counter */
+
+ gboolean csp_enabled; /* CSP: functionality enabled */
+};
+
+struct mcap_mcl {
+ struct mcap_instance *mi; /* MCAP instance where this MCL belongs */
+ bdaddr_t addr; /* Device address */
+ GIOChannel *cc; /* MCAP Control Channel IO */
+ guint wid; /* MCL Watcher id */
+ GSList *mdls; /* List of Data Channels shorted by mdlid */
+ MCLState state; /* Current MCL State */
+ MCLRole role; /* Initiator or acceptor of this MCL */
+ MCAPCtrl req; /* Request control flag */
+ struct mcap_mdl_op_cb *priv_data; /* Temporal data to manage responses */
+ struct mcap_mdl_cb *cb; /* MDL callbacks */
+ guint tid; /* Timer id for waiting for a response */
+ uint8_t *lcmd; /* Last command sent */
+ int ref; /* References counter */
+ uint8_t ctrl; /* MCL control flag */
+ uint16_t next_mdl; /* id used to create next MDL */
+ struct mcap_csp *csp; /* CSP control structure */
+};
+
+struct mcap_mdl {
+ struct mcap_mcl *mcl; /* MCL where this MDL belongs */
+ GIOChannel *dc; /* MCAP Data Channel IO */
+ guint wid; /* MDL Watcher id */
+ uint16_t mdlid; /* MDL id */
+ uint8_t mdep_id; /* MCAP Data End Point */
+ MDLState state; /* MDL state */
+ int ref; /* References counter */
+};
+
+struct sync_info_ind_data {
+ uint32_t btclock;
+ uint64_t timestamp;
+ uint16_t accuracy;
+};
+
+/************ Operations ************/
+
+/* MDL operations */
+
+gboolean mcap_create_mdl(struct mcap_mcl *mcl,
+ uint8_t mdepid,
+ uint8_t conf,
+ mcap_mdl_operation_conf_cb connect_cb,
+ gpointer user_data,
+ GDestroyNotify destroy,
+ GError **err);
+gboolean mcap_reconnect_mdl(struct mcap_mdl *mdl,
+ mcap_mdl_operation_cb reconnect_cb,
+ gpointer user_data,
+ GDestroyNotify destroy,
+ GError **err);
+gboolean mcap_delete_all_mdls(struct mcap_mcl *mcl,
+ mcap_mdl_notify_cb delete_cb,
+ gpointer user_data,
+ GDestroyNotify destroy,
+ GError **err);
+gboolean mcap_delete_mdl(struct mcap_mdl *mdl,
+ mcap_mdl_notify_cb delete_cb,
+ gpointer user_data,
+ GDestroyNotify destroy,
+ GError **err);
+gboolean mcap_connect_mdl(struct mcap_mdl *mdl,
+ uint8_t mode,
+ uint16_t dcpsm,
+ mcap_mdl_operation_cb connect_cb,
+ gpointer user_data,
+ GDestroyNotify destroy,
+ GError **err);
+gboolean mcap_mdl_abort(struct mcap_mdl *mdl,
+ mcap_mdl_notify_cb abort_cb,
+ gpointer user_data,
+ GDestroyNotify destroy,
+ GError **err);
+
+int mcap_mdl_get_fd(struct mcap_mdl *mdl);
+uint16_t mcap_mdl_get_mdlid(struct mcap_mdl *mdl);
+struct mcap_mdl *mcap_mdl_ref(struct mcap_mdl *mdl);
+void mcap_mdl_unref(struct mcap_mdl *mdl);
+
+/* MCL operations */
+
+gboolean mcap_create_mcl(struct mcap_instance *mi,
+ const bdaddr_t *addr,
+ uint16_t ccpsm,
+ mcap_mcl_connect_cb connect_cb,
+ gpointer user_data,
+ GDestroyNotify destroy,
+ GError **err);
+void mcap_close_mcl(struct mcap_mcl *mcl, gboolean cache);
+gboolean mcap_mcl_set_cb(struct mcap_mcl *mcl, gpointer user_data,
+ GError **gerr, McapMclCb cb1, ...);
+void mcap_mcl_get_addr(struct mcap_mcl *mcl, bdaddr_t *addr);
+struct mcap_mcl *mcap_mcl_ref(struct mcap_mcl *mcl);
+void mcap_mcl_unref(struct mcap_mcl *mcl);
+
+/* CSP operations */
+
+void mcap_enable_csp(struct mcap_instance *mi);
+void mcap_disable_csp(struct mcap_instance *mi);
+uint64_t mcap_get_timestamp(struct mcap_mcl *mcl,
+ struct timespec *given_time);
+uint32_t mcap_get_btclock(struct mcap_mcl *mcl);
+
+void mcap_sync_cap_req(struct mcap_mcl *mcl,
+ uint16_t reqacc,
+ mcap_sync_cap_cb cb,
+ gpointer user_data,
+ GError **err);
+
+void mcap_sync_set_req(struct mcap_mcl *mcl,
+ uint8_t update,
+ uint32_t btclock,
+ uint64_t timestamp,
+ mcap_sync_set_cb cb,
+ gpointer user_data,
+ GError **err);
+
+/* MCAP main operations */
+
+struct mcap_instance *mcap_create_instance(const bdaddr_t *src,
+ BtIOSecLevel sec, uint16_t ccpsm,
+ uint16_t dcpsm,
+ mcap_mcl_event_cb mcl_connected,
+ mcap_mcl_event_cb mcl_reconnected,
+ mcap_mcl_event_cb mcl_disconnected,
+ mcap_mcl_event_cb mcl_uncached,
+ mcap_info_ind_event_cb mcl_sync_info_ind,
+ gpointer user_data,
+ GError **gerr);
+void mcap_release_instance(struct mcap_instance *mi);
+
+struct mcap_instance *mcap_instance_ref(struct mcap_instance *mi);
+void mcap_instance_unref(struct mcap_instance *mi);
+
+uint16_t mcap_get_ctrl_psm(struct mcap_instance *mi, GError **err);
+uint16_t mcap_get_data_psm(struct mcap_instance *mi, GError **err);
+
+gboolean mcap_set_data_chan_mode(struct mcap_instance *mi, uint8_t mode,
+ GError **err);
+
+int mcap_send_data(int sock, const void *buf, uint32_t size);
+
+void proc_sync_cmd(struct mcap_mcl *mcl, uint8_t *cmd, uint32_t len);
+void mcap_sync_init(struct mcap_mcl *mcl);
+void mcap_sync_stop(struct mcap_mcl *mcl);
--
1.8.3.2