Return-Path: From: Santiago Carot-Nemesio To: linux-bluetooth@vger.kernel.org Cc: Santiago Carot-Nemesio Subject: [PATCH 6/9] Get all characteristics in thermometer service Date: Thu, 29 Sep 2011 15:46:25 +0200 Message-Id: <1317303988-26310-7-git-send-email-sancane@gmail.com> In-Reply-To: <1317303988-26310-6-git-send-email-sancane@gmail.com> References: <1317303988-26310-1-git-send-email-sancane@gmail.com> <1317303988-26310-2-git-send-email-sancane@gmail.com> <1317303988-26310-3-git-send-email-sancane@gmail.com> <1317303988-26310-4-git-send-email-sancane@gmail.com> <1317303988-26310-5-git-send-email-sancane@gmail.com> <1317303988-26310-6-git-send-email-sancane@gmail.com> Sender: linux-bluetooth-owner@vger.kernel.org List-ID: --- thermometer/thermometer.c | 110 +++++++++++++++++++++++++++++++++++++++++++++ 1 files changed, 110 insertions(+), 0 deletions(-) diff --git a/thermometer/thermometer.c b/thermometer/thermometer.c index f8c17c6..f0b977e 100644 --- a/thermometer/thermometer.c +++ b/thermometer/thermometer.c @@ -30,10 +30,15 @@ #include "gattrib.h" #include "attio.h" #include "att.h" +#include "gatt.h" #include "thermometer.h" #define THERMOMETER_INTERFACE "org.bluez.Thermometer" +#define TEMPERATURE_TYPE_UUID "00002a1d-0000-1000-8000-00805f9b34fb" +#define INTERMEDIATE_TEMPERATURE_UUID "00002a1e-0000-1000-8000-00805f9b34fb" +#define MEASUREMENT_INTERVAL_UUID "00002a21-0000-1000-8000-00805f9b34fb" + struct thermometer { DBusConnection *conn; /* The connection to the bus */ struct btd_device *dev; /* Device reference */ @@ -41,10 +46,31 @@ struct thermometer { struct att_range *svc_range; /* Thermometer range */ gint attioid; /* Att watcher id */ gint attindid; /* Att incications id */ + GSList *chars; /* Characteristics */ +}; + +struct characteristic { + struct att_char attr; /* Characteristic */ + GSList *desc; /* Descriptors */ + struct thermometer *t; /* Thermometer where the char belongs */ +}; + +struct descriptor { + struct characteristic *ch; + uint16_t handle; + bt_uuid_t uuid; }; static GSList *thermometers = NULL; +static void destroy_char(gpointer user_data) +{ + struct characteristic *c = user_data; + + g_slist_free_full(c->desc, g_free); + g_free(c); +} + static void destroy_thermometer(gpointer user_data) { struct thermometer *t = user_data; @@ -58,6 +84,9 @@ static void destroy_thermometer(gpointer user_data) if (t->attrib) g_attrib_unref(t->attrib); + if (t->chars) + g_slist_free_full(t->chars, destroy_char); + dbus_connection_unref(t->conn); btd_device_unref(t->dev); g_free(t->svc_range); @@ -75,6 +104,85 @@ static gint cmp_device(gconstpointer a, gconstpointer b) return -1; } +static void discover_desc_cb(guint8 status, const guint8 *pdu, guint16 len, + gpointer user_data) +{ + /* TODO */ +} + +static void read_temp_type_cb(guint8 status, const guint8 *pdu, guint16 len, + gpointer user_data) +{ + /* TODO */ +} + +static void read_interval_cb(guint8 status, const guint8 *pdu, guint16 len, + gpointer user_data) +{ + /* TODO */ +} + +static void process_thermometer_char(struct characteristic *ch) +{ + GAttribResultFunc func; + + if (g_strcmp0(ch->attr.uuid, INTERMEDIATE_TEMPERATURE_UUID) == 0) { + /* TODO: Change intermediate property and emit signal */ + return; + } else if (g_strcmp0(ch->attr.uuid, TEMPERATURE_TYPE_UUID) == 0) + func = read_temp_type_cb; + else if (g_strcmp0(ch->attr.uuid, MEASUREMENT_INTERVAL_UUID) == 0) + func = read_interval_cb; + else + return; + + gatt_read_char(ch->t->attrib, ch->attr.value_handle, 0, func, ch); +} + +static void configure_thermometer_cb(GSList *characteristics, guint8 status, + gpointer user_data) +{ + struct thermometer *t = user_data; + GSList *l; + + if (status) { + error("Discover thermometer characteristics: %s", + att_ecode2str(status)); + return; + } + + for (l = characteristics; l; l = l->next) { + struct att_char *c = l->data; + struct characteristic *ch; + uint16_t start, end; + + ch = g_new0(struct characteristic, 1); + ch->attr.handle = c->handle; + ch->attr.properties = c->properties; + ch->attr.value_handle = c->value_handle; + memcpy(ch->attr.uuid, c->uuid, MAX_LEN_UUID_STR + 1); + ch->t = t; + + t->chars = g_slist_append(t->chars, ch); + + process_thermometer_char(ch); + + start = c->value_handle + 1; + + if (l->next) { + struct att_char *c = l->next->data; + if (start == c->handle) + continue; + end = c->handle - 1; + } else if (c->value_handle != t->svc_range->end) + end = t->svc_range->end; + else + continue; + + gatt_find_info(t->attrib, start, end, discover_desc_cb, ch); + } +} + static DBusMessage *get_properties(DBusConnection *conn, DBusMessage *msg, void *data) { @@ -152,6 +260,8 @@ static void attio_connected_cb(GAttrib *attrib, gpointer user_data) t->attindid = g_attrib_register(t->attrib, ATT_OP_HANDLE_IND, ind_handler, t, NULL); + gatt_discover_char(t->attrib, t->svc_range->start, t->svc_range->end, + NULL, configure_thermometer_cb, t); } static void attio_disconnected_cb(gpointer user_data) -- 1.7.6.1