diff options
Diffstat (limited to 'hw/input')
| -rw-r--r-- | hw/input/virtio-input-host.c | 46 | ||||
| -rw-r--r-- | hw/input/virtio-input.c | 6 |
2 files changed, 47 insertions, 5 deletions
diff --git a/hw/input/virtio-input-host.c b/hw/input/virtio-input-host.c index 96124f4..cb79e80 100644 --- a/hw/input/virtio-input-host.c +++ b/hw/input/virtio-input-host.c @@ -70,13 +70,39 @@ static void virtio_input_bits_config(VirtIOInputHost *vih, 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; + virtio_input_config id, *abs; struct input_id ids; - int rc, ver; + int rc, ver, i, axis; + uint8_t byte; if (!vih->evdev) { error_setg(errp, "evdev property is required"); @@ -127,6 +153,22 @@ static void virtio_input_host_realize(DeviceState *dev, Error **errp) 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; diff --git a/hw/input/virtio-input.c b/hw/input/virtio-input.c index ac019c7..f59749a 100644 --- a/hw/input/virtio-input.c +++ b/hw/input/virtio-input.c @@ -99,9 +99,9 @@ static void virtio_input_handle_sts(VirtIODevice *vdev, VirtQueue *vq) virtio_notify(vdev, vinput->sts); } -static virtio_input_config *virtio_input_find_config(VirtIOInput *vinput, - uint8_t select, - uint8_t subsel) +virtio_input_config *virtio_input_find_config(VirtIOInput *vinput, + uint8_t select, + uint8_t subsel) { VirtIOInputConfig *cfg; |