diff options
Diffstat (limited to 'qemu/hw/input/virtio-input-host.c')
| -rw-r--r-- | qemu/hw/input/virtio-input-host.c | 257 |
1 files changed, 0 insertions, 257 deletions
diff --git a/qemu/hw/input/virtio-input-host.c b/qemu/hw/input/virtio-input-host.c deleted file mode 100644 index cb79e8002..000000000 --- a/qemu/hw/input/virtio-input-host.c +++ /dev/null @@ -1,257 +0,0 @@ -/* - * This work is licensed under the terms of the GNU GPL, version 2 or - * (at your option) any later version. See the COPYING file in the - * top-level directory. - */ - -#include "qemu/osdep.h" -#include "qapi/error.h" -#include "qemu-common.h" -#include "qemu/sockets.h" - -#include "hw/qdev.h" -#include "hw/virtio/virtio.h" -#include "hw/virtio/virtio-input.h" - -#include <sys/ioctl.h> -#include "standard-headers/linux/input.h" - -/* ----------------------------------------------------------------- */ - -static struct virtio_input_config virtio_input_host_config[] = { - { /* empty list */ }, -}; - -static void virtio_input_host_event(void *opaque) -{ - VirtIOInputHost *vih = opaque; - VirtIOInput *vinput = VIRTIO_INPUT(vih); - struct virtio_input_event virtio; - struct input_event evdev; - int rc; - - for (;;) { - rc = read(vih->fd, &evdev, sizeof(evdev)); - if (rc != sizeof(evdev)) { - break; - } - - virtio.type = cpu_to_le16(evdev.type); - virtio.code = cpu_to_le16(evdev.code); - virtio.value = cpu_to_le32(evdev.value); - virtio_input_send(vinput, &virtio); - } -} - -static void virtio_input_bits_config(VirtIOInputHost *vih, - int type, int count) -{ - virtio_input_config bits; - int rc, i, size = 0; - - memset(&bits, 0, sizeof(bits)); - rc = ioctl(vih->fd, EVIOCGBIT(type, count/8), bits.u.bitmap); - if (rc < 0) { - return; - } - - for (i = 0; i < count/8; i++) { - if (bits.u.bitmap[i]) { - size = i+1; - } - } - if (size == 0) { - return; - } - - bits.select = VIRTIO_INPUT_CFG_EV_BITS; - bits.subsel = type; - bits.size = size; - virtio_input_add_config(VIRTIO_INPUT(vih), &bits); -} - -static void virtio_input_abs_config(VirtIOInputHost *vih, int axis) -{ - virtio_input_config config; - struct input_absinfo absinfo; - int rc; - - rc = ioctl(vih->fd, EVIOCGABS(axis), &absinfo); - if (rc < 0) { - return; - } - - memset(&config, 0, sizeof(config)); - config.select = VIRTIO_INPUT_CFG_ABS_INFO; - config.subsel = axis; - config.size = sizeof(virtio_input_absinfo); - - config.u.abs.min = cpu_to_le32(absinfo.minimum); - config.u.abs.max = cpu_to_le32(absinfo.maximum); - config.u.abs.fuzz = cpu_to_le32(absinfo.fuzz); - config.u.abs.flat = cpu_to_le32(absinfo.flat); - config.u.abs.res = cpu_to_le32(absinfo.resolution); - - virtio_input_add_config(VIRTIO_INPUT(vih), &config); -} - -static void virtio_input_host_realize(DeviceState *dev, Error **errp) -{ - VirtIOInputHost *vih = VIRTIO_INPUT_HOST(dev); - VirtIOInput *vinput = VIRTIO_INPUT(dev); - virtio_input_config id, *abs; - struct input_id ids; - int rc, ver, i, axis; - uint8_t byte; - - if (!vih->evdev) { - error_setg(errp, "evdev property is required"); - return; - } - - vih->fd = open(vih->evdev, O_RDWR); - if (vih->fd < 0) { - error_setg_file_open(errp, errno, vih->evdev); - return; - } - qemu_set_nonblock(vih->fd); - - rc = ioctl(vih->fd, EVIOCGVERSION, &ver); - if (rc < 0) { - error_setg(errp, "%s: is not an evdev device", vih->evdev); - goto err_close; - } - - rc = ioctl(vih->fd, EVIOCGRAB, 1); - if (rc < 0) { - error_setg_errno(errp, errno, "%s: failed to get exclusive access", - vih->evdev); - goto err_close; - } - - memset(&id, 0, sizeof(id)); - ioctl(vih->fd, EVIOCGNAME(sizeof(id.u.string)-1), id.u.string); - id.select = VIRTIO_INPUT_CFG_ID_NAME; - id.size = strlen(id.u.string); - virtio_input_add_config(vinput, &id); - - if (ioctl(vih->fd, EVIOCGID, &ids) == 0) { - memset(&id, 0, sizeof(id)); - id.select = VIRTIO_INPUT_CFG_ID_DEVIDS; - id.size = sizeof(struct virtio_input_devids); - id.u.ids.bustype = cpu_to_le16(ids.bustype); - id.u.ids.vendor = cpu_to_le16(ids.vendor); - id.u.ids.product = cpu_to_le16(ids.product); - id.u.ids.version = cpu_to_le16(ids.version); - virtio_input_add_config(vinput, &id); - } - - virtio_input_bits_config(vih, EV_KEY, KEY_CNT); - virtio_input_bits_config(vih, EV_REL, REL_CNT); - virtio_input_bits_config(vih, EV_ABS, ABS_CNT); - virtio_input_bits_config(vih, EV_MSC, MSC_CNT); - virtio_input_bits_config(vih, EV_SW, SW_CNT); - virtio_input_bits_config(vih, EV_LED, LED_CNT); - - abs = virtio_input_find_config(VIRTIO_INPUT(vih), - VIRTIO_INPUT_CFG_EV_BITS, EV_ABS); - if (abs) { - for (i = 0; i < abs->size; i++) { - byte = abs->u.bitmap[i]; - axis = 8 * i; - while (byte) { - if (byte & 1) { - virtio_input_abs_config(vih, axis); - } - axis++; - byte >>= 1; - } - } - } - - qemu_set_fd_handler(vih->fd, virtio_input_host_event, NULL, vih); - return; - -err_close: - close(vih->fd); - vih->fd = -1; - return; -} - -static void virtio_input_host_unrealize(DeviceState *dev, Error **errp) -{ - VirtIOInputHost *vih = VIRTIO_INPUT_HOST(dev); - - if (vih->fd > 0) { - qemu_set_fd_handler(vih->fd, NULL, NULL, NULL); - close(vih->fd); - } -} - -static void virtio_input_host_handle_status(VirtIOInput *vinput, - virtio_input_event *event) -{ - VirtIOInputHost *vih = VIRTIO_INPUT_HOST(vinput); - struct input_event evdev; - int rc; - - if (gettimeofday(&evdev.time, NULL)) { - perror("virtio_input_host_handle_status: gettimeofday"); - return; - } - - evdev.type = le16_to_cpu(event->type); - evdev.code = le16_to_cpu(event->code); - evdev.value = le32_to_cpu(event->value); - - rc = write(vih->fd, &evdev, sizeof(evdev)); - if (rc == -1) { - perror("virtio_input_host_handle_status: write"); - } -} - -static const VMStateDescription vmstate_virtio_input_host = { - .name = "virtio-input-host", - .unmigratable = 1, -}; - -static Property virtio_input_host_properties[] = { - DEFINE_PROP_STRING("evdev", VirtIOInputHost, evdev), - DEFINE_PROP_END_OF_LIST(), -}; - -static void virtio_input_host_class_init(ObjectClass *klass, void *data) -{ - VirtIOInputClass *vic = VIRTIO_INPUT_CLASS(klass); - DeviceClass *dc = DEVICE_CLASS(klass); - - dc->vmsd = &vmstate_virtio_input_host; - dc->props = virtio_input_host_properties; - vic->realize = virtio_input_host_realize; - vic->unrealize = virtio_input_host_unrealize; - vic->handle_status = virtio_input_host_handle_status; -} - -static void virtio_input_host_init(Object *obj) -{ - VirtIOInput *vinput = VIRTIO_INPUT(obj); - - virtio_input_init_config(vinput, virtio_input_host_config); -} - -static const TypeInfo virtio_input_host_info = { - .name = TYPE_VIRTIO_INPUT_HOST, - .parent = TYPE_VIRTIO_INPUT, - .instance_size = sizeof(VirtIOInputHost), - .instance_init = virtio_input_host_init, - .class_init = virtio_input_host_class_init, -}; - -/* ----------------------------------------------------------------- */ - -static void virtio_register_types(void) -{ - type_register_static(&virtio_input_host_info); -} - -type_init(virtio_register_types) |