Return-Path: From: Sheldon Demario To: linux-bluetooth@vger.kernel.org Cc: Sheldon Demario Subject: [PATCH] Add discover characteristics by uuid to gatttool Date: Wed, 16 Mar 2011 18:51:44 -0300 Message-Id: <1300312304-13874-1-git-send-email-sheldon.demario@openbossa.org> In-Reply-To: <1300297246-11056-1-git-send-email-sheldon.demario@openbossa.org> References: <1300297246-11056-1-git-send-email-sheldon.demario@openbossa.org> Sender: linux-bluetooth-owner@vger.kernel.org List-ID: According to the spec the characteristics discover and characteristics discover by uuid use the same opcode and the result should be filtered by callback. --- attrib/client.c | 2 +- attrib/gatt.c | 16 +++++++++++----- attrib/gatt.h | 3 ++- attrib/gatttool.c | 3 ++- attrib/interactive.c | 16 ++++++++++++++-- 5 files changed, 30 insertions(+), 10 deletions(-) diff --git a/attrib/client.c b/attrib/client.c index 3237a6b..54bdc79 100644 --- a/attrib/client.c +++ b/attrib/client.c @@ -960,7 +960,7 @@ static DBusMessage *discover_char(DBusConnection *conn, DBusMessage *msg, qchr->prim = prim; qchr->msg = dbus_message_ref(msg); - gatt_discover_char(gatt->attrib, att->start, att->end, + gatt_discover_char(gatt->attrib, att->start, att->end, NULL, char_discovered_cb, qchr); return NULL; diff --git a/attrib/gatt.c b/attrib/gatt.c index 32bd4a0..1cd651c 100644 --- a/attrib/gatt.c +++ b/attrib/gatt.c @@ -40,7 +40,7 @@ struct discover_primary { struct discover_char { GAttrib *attrib; - bt_uuid_t uuid; + bt_uuid_t *uuid; uint16_t end; GSList *characteristics; gatt_cb_t cb; @@ -59,6 +59,7 @@ static void discover_char_free(struct discover_char *dc) g_slist_foreach(dc->characteristics, (GFunc) g_free, NULL); g_slist_free(dc->characteristics); g_attrib_unref(dc->attrib); + g_free(dc->uuid); g_free(dc); } @@ -281,6 +282,9 @@ static void char_discovered_cb(guint8 status, const guint8 *ipdu, guint16 iplen, goto done; } + if (dc->uuid && bt_uuid_cmp(dc->uuid, &uuid)) + break; + chars->handle = last; chars->properties = value[2]; chars->value_handle = att_get_u16(&value[3]); @@ -313,16 +317,17 @@ done: } guint gatt_discover_char(GAttrib *attrib, uint16_t start, uint16_t end, - gatt_cb_t func, gpointer user_data) + bt_uuid_t *uuid, gatt_cb_t func, + gpointer user_data) { uint8_t pdu[ATT_DEFAULT_LE_MTU]; struct discover_char *dc; + bt_uuid_t type_uuid; guint16 plen; - bt_uuid_t uuid; - bt_uuid16_create(&uuid, GATT_CHARAC_UUID); + bt_uuid16_create(&type_uuid, GATT_CHARAC_UUID); - plen = enc_read_by_type_req(start, end, &uuid, pdu, sizeof(pdu)); + plen = enc_read_by_type_req(start, end, &type_uuid, pdu, sizeof(pdu)); if (plen == 0) return 0; @@ -334,6 +339,7 @@ guint gatt_discover_char(GAttrib *attrib, uint16_t start, uint16_t end, dc->cb = func; dc->user_data = user_data; dc->end = end; + dc->uuid = g_memdup(uuid, sizeof(bt_uuid_t)); return g_attrib_send(attrib, 0, pdu[0], pdu, plen, char_discovered_cb, dc, NULL); diff --git a/attrib/gatt.h b/attrib/gatt.h index 730de7e..c6d3843 100644 --- a/attrib/gatt.h +++ b/attrib/gatt.h @@ -30,7 +30,8 @@ guint gatt_discover_primary(GAttrib *attrib, bt_uuid_t *uuid, gatt_cb_t func, gpointer user_data); guint gatt_discover_char(GAttrib *attrib, uint16_t start, uint16_t end, - gatt_cb_t func, gpointer user_data); + bt_uuid_t *uuid, gatt_cb_t func, + gpointer user_data); guint gatt_read_char(GAttrib *attrib, uint16_t handle, uint16_t offset, GAttribResultFunc func, gpointer user_data); diff --git a/attrib/gatttool.c b/attrib/gatttool.c index 729e18d..0dfbc04 100644 --- a/attrib/gatttool.c +++ b/attrib/gatttool.c @@ -206,7 +206,8 @@ static gboolean characteristics(gpointer user_data) { GAttrib *attrib = user_data; - gatt_discover_char(attrib, opt_start, opt_end, char_discovered_cb, NULL); + gatt_discover_char(attrib, opt_start, opt_end, opt_uuid, + char_discovered_cb, NULL); return FALSE; } diff --git a/attrib/interactive.c b/attrib/interactive.c index b32e9e7..a9157e7 100644 --- a/attrib/interactive.c +++ b/attrib/interactive.c @@ -431,7 +431,19 @@ static void cmd_char(int argcp, char **argvp) } } - gatt_discover_char(attrib, start, end, char_cb, NULL); + if (argcp > 3) { + bt_uuid_t uuid; + + if (bt_string_to_uuid(&uuid, argvp[3]) < 0) { + printf("Invalid UUID\n"); + return; + } + + gatt_discover_char(attrib, start, end, &uuid, char_cb, NULL); + return; + } + + gatt_discover_char(attrib, start, end, NULL, char_cb, NULL); } static void cmd_char_desc(int argcp, char **argvp) @@ -658,7 +670,7 @@ static struct { "Disconnect from a remote device" }, { "primary", cmd_primary, "[UUID]", "Primary Service Discovery" }, - { "characteristics", cmd_char, "[start hnd] [end hnd]", + { "characteristics", cmd_char, "[start hnd [end hnd [UUID]]]", "Characteristics Discovery" }, { "char-desc", cmd_char_desc, "[start hnd] [end hnd]", "Characteristics Descriptor Discovery" }, -- 1.7.1