Lines Matching refs:vi
22 static void virtinput_queue_evtbuf(struct virtio_input *vi, in virtinput_queue_evtbuf() argument
28 virtqueue_add_inbuf(vi->evt, sg, 1, evtbuf, GFP_ATOMIC); in virtinput_queue_evtbuf()
33 struct virtio_input *vi = vq->vdev->priv; in virtinput_recv_events() local
38 spin_lock_irqsave(&vi->lock, flags); in virtinput_recv_events()
39 if (vi->ready) { in virtinput_recv_events()
40 while ((event = virtqueue_get_buf(vi->evt, &len)) != NULL) { in virtinput_recv_events()
41 spin_unlock_irqrestore(&vi->lock, flags); in virtinput_recv_events()
42 input_event(vi->idev, in virtinput_recv_events()
46 spin_lock_irqsave(&vi->lock, flags); in virtinput_recv_events()
47 virtinput_queue_evtbuf(vi, event); in virtinput_recv_events()
51 spin_unlock_irqrestore(&vi->lock, flags); in virtinput_recv_events()
58 static int virtinput_send_status(struct virtio_input *vi, in virtinput_send_status() argument
75 spin_lock_irqsave(&vi->lock, flags); in virtinput_send_status()
76 if (vi->ready) { in virtinput_send_status()
77 rc = virtqueue_add_outbuf(vi->sts, sg, 1, stsbuf, GFP_ATOMIC); in virtinput_send_status()
78 virtqueue_kick(vi->sts); in virtinput_send_status()
82 spin_unlock_irqrestore(&vi->lock, flags); in virtinput_send_status()
91 struct virtio_input *vi = vq->vdev->priv; in virtinput_recv_status() local
96 spin_lock_irqsave(&vi->lock, flags); in virtinput_recv_status()
97 while ((stsbuf = virtqueue_get_buf(vi->sts, &len)) != NULL) in virtinput_recv_status()
99 spin_unlock_irqrestore(&vi->lock, flags); in virtinput_recv_status()
105 struct virtio_input *vi = input_get_drvdata(idev); in virtinput_status() local
107 return virtinput_send_status(vi, type, code, value); in virtinput_status()
110 static u8 virtinput_cfg_select(struct virtio_input *vi, in virtinput_cfg_select() argument
115 virtio_cwrite(vi->vdev, struct virtio_input_config, select, &select); in virtinput_cfg_select()
116 virtio_cwrite(vi->vdev, struct virtio_input_config, subsel, &subsel); in virtinput_cfg_select()
117 virtio_cread(vi->vdev, struct virtio_input_config, size, &size); in virtinput_cfg_select()
121 static void virtinput_cfg_bits(struct virtio_input *vi, int select, int subsel, in virtinput_cfg_bits() argument
128 bytes = virtinput_cfg_select(vi, select, subsel); in virtinput_cfg_bits()
142 virtio_cread_bytes(vi->vdev, offsetof(struct virtio_input_config, in virtinput_cfg_bits()
152 __set_bit(subsel, vi->idev->evbit); in virtinput_cfg_bits()
155 static void virtinput_cfg_abs(struct virtio_input *vi, int abs) in virtinput_cfg_abs() argument
159 virtinput_cfg_select(vi, VIRTIO_INPUT_CFG_ABS_INFO, abs); in virtinput_cfg_abs()
160 virtio_cread(vi->vdev, struct virtio_input_config, u.abs.min, &mi); in virtinput_cfg_abs()
161 virtio_cread(vi->vdev, struct virtio_input_config, u.abs.max, &ma); in virtinput_cfg_abs()
162 virtio_cread(vi->vdev, struct virtio_input_config, u.abs.res, &re); in virtinput_cfg_abs()
163 virtio_cread(vi->vdev, struct virtio_input_config, u.abs.fuzz, &fu); in virtinput_cfg_abs()
164 virtio_cread(vi->vdev, struct virtio_input_config, u.abs.flat, &fl); in virtinput_cfg_abs()
165 input_set_abs_params(vi->idev, abs, mi, ma, fu, fl); in virtinput_cfg_abs()
166 input_abs_set_res(vi->idev, abs, re); in virtinput_cfg_abs()
169 static int virtinput_init_vqs(struct virtio_input *vi) in virtinput_init_vqs() argument
177 err = virtio_find_vqs(vi->vdev, 2, vqs, cbs, names, NULL); in virtinput_init_vqs()
180 vi->evt = vqs[0]; in virtinput_init_vqs()
181 vi->sts = vqs[1]; in virtinput_init_vqs()
186 static void virtinput_fill_evt(struct virtio_input *vi) in virtinput_fill_evt() argument
191 spin_lock_irqsave(&vi->lock, flags); in virtinput_fill_evt()
192 size = virtqueue_get_vring_size(vi->evt); in virtinput_fill_evt()
193 if (size > ARRAY_SIZE(vi->evts)) in virtinput_fill_evt()
194 size = ARRAY_SIZE(vi->evts); in virtinput_fill_evt()
196 virtinput_queue_evtbuf(vi, &vi->evts[i]); in virtinput_fill_evt()
197 virtqueue_kick(vi->evt); in virtinput_fill_evt()
198 spin_unlock_irqrestore(&vi->lock, flags); in virtinput_fill_evt()
203 struct virtio_input *vi; in virtinput_probe() local
211 vi = kzalloc(sizeof(*vi), GFP_KERNEL); in virtinput_probe()
212 if (!vi) in virtinput_probe()
215 vdev->priv = vi; in virtinput_probe()
216 vi->vdev = vdev; in virtinput_probe()
217 spin_lock_init(&vi->lock); in virtinput_probe()
219 err = virtinput_init_vqs(vi); in virtinput_probe()
223 vi->idev = input_allocate_device(); in virtinput_probe()
224 if (!vi->idev) { in virtinput_probe()
228 input_set_drvdata(vi->idev, vi); in virtinput_probe()
230 size = virtinput_cfg_select(vi, VIRTIO_INPUT_CFG_ID_NAME, 0); in virtinput_probe()
231 virtio_cread_bytes(vi->vdev, offsetof(struct virtio_input_config, in virtinput_probe()
233 vi->name, min(size, sizeof(vi->name))); in virtinput_probe()
234 size = virtinput_cfg_select(vi, VIRTIO_INPUT_CFG_ID_SERIAL, 0); in virtinput_probe()
235 virtio_cread_bytes(vi->vdev, offsetof(struct virtio_input_config, in virtinput_probe()
237 vi->serial, min(size, sizeof(vi->serial))); in virtinput_probe()
238 snprintf(vi->phys, sizeof(vi->phys), in virtinput_probe()
240 vi->idev->name = vi->name; in virtinput_probe()
241 vi->idev->phys = vi->phys; in virtinput_probe()
242 vi->idev->uniq = vi->serial; in virtinput_probe()
244 size = virtinput_cfg_select(vi, VIRTIO_INPUT_CFG_ID_DEVIDS, 0); in virtinput_probe()
246 virtio_cread(vi->vdev, struct virtio_input_config, in virtinput_probe()
247 u.ids.bustype, &vi->idev->id.bustype); in virtinput_probe()
248 virtio_cread(vi->vdev, struct virtio_input_config, in virtinput_probe()
249 u.ids.vendor, &vi->idev->id.vendor); in virtinput_probe()
250 virtio_cread(vi->vdev, struct virtio_input_config, in virtinput_probe()
251 u.ids.product, &vi->idev->id.product); in virtinput_probe()
252 virtio_cread(vi->vdev, struct virtio_input_config, in virtinput_probe()
253 u.ids.version, &vi->idev->id.version); in virtinput_probe()
255 vi->idev->id.bustype = BUS_VIRTUAL; in virtinput_probe()
258 virtinput_cfg_bits(vi, VIRTIO_INPUT_CFG_PROP_BITS, 0, in virtinput_probe()
259 vi->idev->propbit, INPUT_PROP_CNT); in virtinput_probe()
260 size = virtinput_cfg_select(vi, VIRTIO_INPUT_CFG_EV_BITS, EV_REP); in virtinput_probe()
262 __set_bit(EV_REP, vi->idev->evbit); in virtinput_probe()
264 vi->idev->dev.parent = &vdev->dev; in virtinput_probe()
265 vi->idev->event = virtinput_status; in virtinput_probe()
268 virtinput_cfg_bits(vi, VIRTIO_INPUT_CFG_EV_BITS, EV_KEY, in virtinput_probe()
269 vi->idev->keybit, KEY_CNT); in virtinput_probe()
270 virtinput_cfg_bits(vi, VIRTIO_INPUT_CFG_EV_BITS, EV_REL, in virtinput_probe()
271 vi->idev->relbit, REL_CNT); in virtinput_probe()
272 virtinput_cfg_bits(vi, VIRTIO_INPUT_CFG_EV_BITS, EV_ABS, in virtinput_probe()
273 vi->idev->absbit, ABS_CNT); in virtinput_probe()
274 virtinput_cfg_bits(vi, VIRTIO_INPUT_CFG_EV_BITS, EV_MSC, in virtinput_probe()
275 vi->idev->mscbit, MSC_CNT); in virtinput_probe()
276 virtinput_cfg_bits(vi, VIRTIO_INPUT_CFG_EV_BITS, EV_SW, in virtinput_probe()
277 vi->idev->swbit, SW_CNT); in virtinput_probe()
280 virtinput_cfg_bits(vi, VIRTIO_INPUT_CFG_EV_BITS, EV_LED, in virtinput_probe()
281 vi->idev->ledbit, LED_CNT); in virtinput_probe()
282 virtinput_cfg_bits(vi, VIRTIO_INPUT_CFG_EV_BITS, EV_SND, in virtinput_probe()
283 vi->idev->sndbit, SND_CNT); in virtinput_probe()
285 if (test_bit(EV_ABS, vi->idev->evbit)) { in virtinput_probe()
287 if (!test_bit(abs, vi->idev->absbit)) in virtinput_probe()
289 virtinput_cfg_abs(vi, abs); in virtinput_probe()
294 vi->ready = true; in virtinput_probe()
295 err = input_register_device(vi->idev); in virtinput_probe()
299 virtinput_fill_evt(vi); in virtinput_probe()
303 spin_lock_irqsave(&vi->lock, flags); in virtinput_probe()
304 vi->ready = false; in virtinput_probe()
305 spin_unlock_irqrestore(&vi->lock, flags); in virtinput_probe()
306 input_free_device(vi->idev); in virtinput_probe()
310 kfree(vi); in virtinput_probe()
316 struct virtio_input *vi = vdev->priv; in virtinput_remove() local
320 spin_lock_irqsave(&vi->lock, flags); in virtinput_remove()
321 vi->ready = false; in virtinput_remove()
322 spin_unlock_irqrestore(&vi->lock, flags); in virtinput_remove()
324 input_unregister_device(vi->idev); in virtinput_remove()
326 while ((buf = virtqueue_detach_unused_buf(vi->sts)) != NULL) in virtinput_remove()
329 kfree(vi); in virtinput_remove()
335 struct virtio_input *vi = vdev->priv; in virtinput_freeze() local
338 spin_lock_irqsave(&vi->lock, flags); in virtinput_freeze()
339 vi->ready = false; in virtinput_freeze()
340 spin_unlock_irqrestore(&vi->lock, flags); in virtinput_freeze()
348 struct virtio_input *vi = vdev->priv; in virtinput_restore() local
351 err = virtinput_init_vqs(vi); in virtinput_restore()
356 vi->ready = true; in virtinput_restore()
357 virtinput_fill_evt(vi); in virtinput_restore()