video/fbdev/hyperv_fb.c

286 static inline int synthvid_send(struct hv_device *hdev,
295 	ret = vmbus_sendpacket(hdev->channel, msg,
308 static int synthvid_send_situ(struct hv_device *hdev)
310 	struct fb_info *info = hv_get_drvdata(hdev);
330 	synthvid_send(hdev, &msg);
336 static int synthvid_send_ptr(struct hv_device *hdev)
348 	synthvid_send(hdev, &msg);
364 	synthvid_send(hdev, &msg);
373 	struct hv_device *hdev = device_to_hv_device(info->device);
394 	synthvid_send(hdev, &msg);
457 static void synthvid_recv_sub(struct hv_device *hdev)
459 	struct fb_info *info = hv_get_drvdata(hdev);
481 			synthvid_send_ptr(hdev);
482 			synthvid_send_situ(hdev);
494 	struct hv_device *hdev = ctx;
495 	struct fb_info *info = hv_get_drvdata(hdev);
509 		ret = vmbus_recvpacket(hdev->channel, recv_buf,
514 			synthvid_recv_sub(hdev);
530 static int synthvid_negotiate_ver(struct hv_device *hdev, u32 ver)
532 	struct fb_info *info = hv_get_drvdata(hdev);
543 	synthvid_send(hdev, msg);
565 static int synthvid_get_supported_resolution(struct hv_device *hdev)
567 	struct fb_info *info = hv_get_drvdata(hdev);
581 	synthvid_send(hdev, msg);
613 static int synthvid_connect_vsp(struct hv_device *hdev)
615 	struct fb_info *info = hv_get_drvdata(hdev);
619 	ret = vmbus_open(hdev->channel, RING_BUFSIZE, RING_BUFSIZE,
620 			 NULL, 0, synthvid_receive, hdev);
630 		ret = synthvid_negotiate_ver(hdev, SYNTHVID_VERSION_WIN10);
636 		ret = synthvid_negotiate_ver(hdev, SYNTHVID_VERSION_WIN8);
639 		ret = synthvid_negotiate_ver(hdev, SYNTHVID_VERSION_WIN10);
650 		ret = synthvid_get_supported_resolution(hdev);
655 	screen_fb_size = hdev->channel->offermsg.offer.
661 	vmbus_close(hdev->channel);
666 static int synthvid_send_config(struct hv_device *hdev)
668 	struct fb_info *info = hv_get_drvdata(hdev);
681 	synthvid_send(hdev, msg);
696 	synthvid_send_ptr(hdev);
697 	synthvid_send_situ(hdev);
782 	struct hv_device *hdev;
788 	hdev = device_to_hv_device(info->device);
790 	if (hv_ringbuffer_spinlock_busy(hdev->channel))
818 	struct hv_device *hdev = device_to_hv_device(info->device);
820 	return synthvid_send_situ(hdev);
917 static phys_addr_t hvfb_get_phymem(struct hv_device *hdev,
938 		hdev->device.coherent_dma_mask = DMA_BIT_MASK(64);
940 		vmem = dma_alloc_coherent(&hdev->device,
955 static void hvfb_release_phymem(struct hv_device *hdev,
963 		dma_free_coherent(&hdev->device,
971 static int hvfb_getmem(struct hv_device *hdev, struct fb_info *info)
999 		paddr = hvfb_get_phymem(hdev, screen_fb_size);
1022 	ret = vmbus_allocate_mmio(&par->mem, hdev, 0, -1,
1077 static void hvfb_putmem(struct hv_device *hdev, struct fb_info *info)
1086 		hvfb_release_phymem(hdev, info->fix.smem_start,
1094 static int hvfb_probe(struct hv_device *hdev,
1101 	info = framebuffer_alloc(sizeof(struct hvfb_par), &hdev->device);
1118 	hv_set_drvdata(hdev, info);
1119 	ret = synthvid_connect_vsp(hdev);
1129 	ret = hvfb_getmem(hdev, info);
1171 	ret = synthvid_send_config(hdev);
1200 	hvfb_putmem(hdev, info);
1202 	vmbus_close(hdev->channel);
1205 	hv_set_drvdata(hdev, NULL);
1210 static void hvfb_remove(struct hv_device *hdev)
1212 	struct fb_info *info = hv_get_drvdata(hdev);
1226 	vmbus_close(hdev->channel);
1227 	hv_set_drvdata(hdev, NULL);
1229 	hvfb_putmem(hdev, info);
1233 static int hvfb_suspend(struct hv_device *hdev)
1235 	struct fb_info *info = hv_get_drvdata(hdev);
1250 	vmbus_close(hdev->channel);
1257 static int hvfb_resume(struct hv_device *hdev)
1259 	struct fb_info *info = hv_get_drvdata(hdev);
1265 	ret = synthvid_connect_vsp(hdev);
1269 	ret = synthvid_send_config(hdev);
1271 		vmbus_close(hdev->channel);