From: Rob Bradford <r...@linux.intel.com>

Thie will allow us to instantiate multiple seats.
---
 src/udev-seat.c | 86 ++++++++++++++++++++++++++++++++++++++++-----------------
 src/udev-seat.h |  8 +++++-
 2 files changed, 68 insertions(+), 26 deletions(-)

diff --git a/src/udev-seat.c b/src/udev-seat.c
index 4091088..5c289c4 100644
--- a/src/udev-seat.c
+++ b/src/udev-seat.c
@@ -32,6 +32,11 @@
 
 static const char default_seat[] = "seat0";
 
+static struct udev_seat *
+udev_seat_create(struct weston_compositor *c);
+static void
+udev_seat_destroy(struct udev_seat *seat);
+
 static int
 device_added(struct udev_device *udev_device, struct udev_input *input)
 {
@@ -41,6 +46,7 @@ device_added(struct udev_device *udev_device, struct 
udev_input *input)
        const char *device_seat;
        const char *calibration_values;
        int fd;
+       struct udev_seat *seat;
 
        device_seat = udev_device_get_property_value(udev_device, "ID_SEAT");
        if (!device_seat)
@@ -49,9 +55,18 @@ device_added(struct udev_device *udev_device, struct 
udev_input *input)
        if (strcmp(device_seat, input->seat_id))
                return 0;
 
-       c = input->base.compositor;
+       c = input->compositor;
        devnode = udev_device_get_devnode(udev_device);
 
+       /* Single default seat for now */
+       if (!input->seat)
+               input->seat = udev_seat_create(c);
+
+       if (!input->seat)
+               return -1;
+
+       seat = input->seat;
+
        /* Use non-blocking mode so that we can loop on read on
         * evdev_device_data() until all events on the fd are
         * read.  mtdev_get() also expects this. */
@@ -61,7 +76,7 @@ device_added(struct udev_device *udev_device, struct 
udev_input *input)
                return -1;
        }
 
-       device = evdev_device_create(&input->base, devnode, fd);
+       device = evdev_device_create(&seat->base, devnode, fd);
        if (device == EVDEV_UNHANDLED_DEVICE) {
                close(fd);
                weston_log("not using input device '%s'.\n", devnode);
@@ -94,7 +109,7 @@ device_added(struct udev_device *udev_device, struct 
udev_input *input)
                            device->abs.calibration[5]);
        }
 
-       wl_list_insert(input->devices_list.prev, &device->link);
+       wl_list_insert(seat->devices_list.prev, &device->link);
 
        return 0;
 }
@@ -130,9 +145,9 @@ udev_input_add_devices(struct udev_input *input, struct 
udev *udev)
        }
        udev_enumerate_unref(e);
 
-       evdev_notify_keyboard_focus(&input->base, &input->devices_list);
+       evdev_notify_keyboard_focus(&input->seat->base, 
&input->seat->devices_list);
 
-       if (wl_list_empty(&input->devices_list)) {
+       if (wl_list_empty(&input->seat->devices_list)) {
                weston_log(
                        "warning: no input devices on entering Weston. "
                        "Possible causes:\n"
@@ -170,7 +185,7 @@ evdev_udev_handler(int fd, uint32_t mask, void *data)
        }
        else if (!strcmp(action, "remove")) {
                devnode = udev_device_get_devnode(udev_device);
-               wl_list_for_each_safe(device, next, &input->devices_list, link)
+               wl_list_for_each_safe(device, next, &input->seat->devices_list, 
link)
                        if (!strcmp(device->devnode, devnode)) {
                                weston_log("input device %s, %s removed\n",
                                           device->devname, device->devnode);
@@ -189,7 +204,7 @@ int
 udev_input_enable(struct udev_input *input, struct udev *udev)
 {
        struct wl_event_loop *loop;
-       struct weston_compositor *c = input->base.compositor;
+       struct weston_compositor *c = input->compositor;
        int fd;
 
        input->udev_monitor = udev_monitor_new_from_netlink(udev, "udev");
@@ -228,11 +243,11 @@ udev_input_remove_devices(struct udev_input *input)
 {
        struct evdev_device *device, *next;
 
-       wl_list_for_each_safe(device, next, &input->devices_list, link)
+       wl_list_for_each_safe(device, next, &input->seat->devices_list, link)
                evdev_device_destroy(device);
 
-       if (input->base.keyboard)
-               notify_keyboard_focus_out(&input->base);
+       if (input->seat->base.keyboard)
+               notify_keyboard_focus_out(&input->seat->base);
 }
 
 void
@@ -249,26 +264,14 @@ udev_input_disable(struct udev_input *input)
        udev_input_remove_devices(input);
 }
 
-static void
-drm_led_update(struct weston_seat *seat_base, enum weston_led leds)
-{
-       struct udev_input *seat = (struct udev_input *) seat_base;
-       struct evdev_device *device;
-
-       wl_list_for_each(device, &seat->devices_list, link)
-               evdev_led_update(device, leds);
-}
 
 int
 udev_input_init(struct udev_input *input, struct weston_compositor *c, struct 
udev *udev,
                const char *seat_id)
 {
        memset(input, 0, sizeof *input);
-       weston_seat_init(&input->base, c, "default");
-       input->base.led_update = drm_led_update;
-
-       wl_list_init(&input->devices_list);
        input->seat_id = strdup(seat_id);
+       input->compositor = c;
        if (udev_input_enable(input, udev) < 0)
                goto err;
 
@@ -283,7 +286,40 @@ void
 udev_input_destroy(struct udev_input *input)
 {
        udev_input_disable(input);
-
-       weston_seat_release(&input->base);
+       udev_seat_destroy(input->seat);
        free(input->seat_id);
 }
+
+static void
+drm_led_update(struct weston_seat *seat_base, enum weston_led leds)
+{
+       struct udev_seat *seat = (struct udev_seat *) seat_base;
+       struct evdev_device *device;
+
+       wl_list_for_each(device, &seat->devices_list, link)
+               evdev_led_update(device, leds);
+}
+
+static struct udev_seat *
+udev_seat_create(struct weston_compositor *c)
+{
+       struct udev_seat *seat;
+
+       seat = malloc(sizeof *seat);
+
+       if (!seat)
+               return NULL;
+       memset(seat, 0, sizeof *seat);
+       weston_seat_init(&seat->base, c, "default");
+       seat->base.led_update = drm_led_update;
+
+       wl_list_init(&seat->devices_list);
+       return seat;
+}
+
+static void
+udev_seat_destroy(struct udev_seat *seat)
+{
+       weston_seat_release(&seat->base);
+       free(seat);
+}
diff --git a/src/udev-seat.h b/src/udev-seat.h
index e19a93d..60aef68 100644
--- a/src/udev-seat.h
+++ b/src/udev-seat.h
@@ -27,14 +27,20 @@
 
 #include "compositor.h"
 
-struct udev_input {
+struct udev_seat {
        struct weston_seat base;
        struct wl_list devices_list;
+};
+
+struct udev_input {
        struct udev_monitor *udev_monitor;
        struct wl_event_source *udev_monitor_source;
        char *seat_id;
+       struct weston_compositor *compositor;
+       struct udev_seat *seat;
 };
 
+
 int udev_input_enable(struct udev_input *input, struct udev *udev);
 void udev_input_disable(struct udev_input *input);
 int udev_input_init(struct udev_input *input,
-- 
1.8.1.4

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