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hog: Discover all characteristics declaration

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HID service supports multiple report characteristic. Each report
characteristic has a reference descriptor containing ID and type.
This commit is contained in:
João Paulo Rechi Vita 2012-07-03 15:42:57 -03:00 committed by Johan Hedberg
parent 563f970a56
commit bc464376d0
1 changed files with 52 additions and 0 deletions
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52
input/hog_device.c
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@ -47,21 +47,65 @@
#include "attio.h" #include "attio.h"
#include "gatt.h" #include "gatt.h"
#define HOG_REPORT_UUID 0x2A4D
struct report {
struct gatt_char *decl;
};
struct hog_device { struct hog_device {
char *path; char *path;
struct btd_device *device; struct btd_device *device;
GAttrib *attrib; GAttrib *attrib;
guint attioid; guint attioid;
struct gatt_primary *hog_primary; struct gatt_primary *hog_primary;
GSList *reports;
}; };
static GSList *devices = NULL; static GSList *devices = NULL;
static void char_discovered_cb(GSList *chars, guint8 status, gpointer user_data)
{
struct hog_device *hogdev = user_data;
bt_uuid_t report_uuid;
struct report *report;
GSList *l;
if (status != 0) {
const char *str = att_ecode2str(status);
DBG("Discover all characteristics failed: %s", str);
return;
}
bt_uuid16_create(&report_uuid, HOG_REPORT_UUID);
for (l = chars; l; l = g_slist_next(l)) {
struct gatt_char *chr = l->data;
bt_uuid_t uuid;
DBG("0x%04x UUID: %s properties: %02x",
chr->handle, chr->uuid, chr->properties);
bt_string_to_uuid(&uuid, chr->uuid);
if (bt_uuid_cmp(&uuid, &report_uuid) != 0)
continue;
report = g_new0(struct report, 1);
report->decl = g_memdup(chr, sizeof(*chr));
hogdev->reports = g_slist_append(hogdev->reports, report);
}
}
static void attio_connected_cb(GAttrib *attrib, gpointer user_data) static void attio_connected_cb(GAttrib *attrib, gpointer user_data)
{ {
struct hog_device *hogdev = user_data; struct hog_device *hogdev = user_data;
struct gatt_primary *prim = hogdev->hog_primary;
hogdev->attrib = g_attrib_ref(attrib); hogdev->attrib = g_attrib_ref(attrib);
gatt_discover_char(hogdev->attrib, prim->range.start, prim->range.end,
NULL, char_discovered_cb, hogdev);
} }
static void attio_disconnected_cb(gpointer user_data) static void attio_disconnected_cb(gpointer user_data)
@ -148,9 +192,17 @@ int hog_device_register(struct btd_device *device, const char *path)
return 0; return 0;
} }
static void report_free(void *data)
{
struct report *report = data;
g_free(report->decl);
g_free(report);
}
static void hog_device_free(struct hog_device *hogdev) static void hog_device_free(struct hog_device *hogdev)
{ {
btd_device_unref(hogdev->device); btd_device_unref(hogdev->device);
g_slist_free_full(hogdev->reports, report_free);
g_free(hogdev->path); g_free(hogdev->path);
g_free(hogdev->hog_primary); g_free(hogdev->hog_primary);
g_free(hogdev); g_free(hogdev);