From 44dd4196806ef015e7df3c671ca986b0b5ca0f73 Mon Sep 17 00:00:00 2001 From: Bandan Date: Fri, 7 Sep 2018 18:08:49 -0400 Subject: [PATCH 1/5] usb-mtp: fix error conditions for write operation Return STORE_FULL if we can't write all the bytes but return incomplete transfer if data received is less then what was specified in the metadata. Also, use d->offset as the file size which is valid for all file sizes. Signed-off-by: Bandan Message-id: 20180907220851.9658-2-bsd@redhat.com Signed-off-by: Gerd Hoffmann --- hw/usb/dev-mtp.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/hw/usb/dev-mtp.c b/hw/usb/dev-mtp.c index 3fdc4b0da1..15edf3bb82 100644 --- a/hw/usb/dev-mtp.c +++ b/hw/usb/dev-mtp.c @@ -1665,13 +1665,14 @@ static void usb_mtp_write_data(MTPState *s) goto success; } - rc = write_retry(d->fd, d->data, s->dataset.size); - if (!rc) { + rc = write_retry(d->fd, d->data, d->offset); + if (rc != d->offset) { usb_mtp_queue_result(s, RES_STORE_FULL, d->trans, 0, 0, 0, 0); goto done; } - if (rc != s->dataset.size) { + /* Only for < 4G file sizes */ + if (s->dataset.size != 0xFFFFFFFF && rc != s->dataset.size) { usb_mtp_queue_result(s, RES_INCOMPLETE_TRANSFER, d->trans, 0, 0, 0, 0); goto done; From 1ee53067f849506042193a9fd57f857583536eca Mon Sep 17 00:00:00 2001 From: Bandan Date: Fri, 7 Sep 2018 18:08:50 -0400 Subject: [PATCH 2/5] doc: replace x-root with rootdir for usb-mtp Signed-off-by: Bandan Message-id: 20180907220851.9658-3-bsd@redhat.com Signed-off-by: Gerd Hoffmann --- qemu-doc.texi | 2 +- scripts/device-crash-test | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) diff --git a/qemu-doc.texi b/qemu-doc.texi index 7bd449f398..f7ad1dfe4b 100644 --- a/qemu-doc.texi +++ b/qemu-doc.texi @@ -943,7 +943,7 @@ for details Bulk-only transport storage device, see @url{https://git.qemu.org/?p=qemu.git;a=blob_plain;f=docs/usb-storage.txt,usb-storage.txt} for details here, too -@item usb-mtp,x-root=@var{dir} +@item usb-mtp,rootdir=@var{dir} Media transfer protocol device, using @var{dir} as root of the file tree that is presented to the guest. @item usb-host,hostbus=@var{bus},hostaddr=@var{addr} diff --git a/scripts/device-crash-test b/scripts/device-crash-test index e6c233e9bf..7045594bd4 100755 --- a/scripts/device-crash-test +++ b/scripts/device-crash-test @@ -125,7 +125,7 @@ ERROR_WHITELIST = [ {'device':'tpm-tis', 'expected':True}, # tpm_tis: backend driver with id (null) could not be found {'device':'unimplemented-device', 'expected':True}, # property 'size' not specified or zero {'device':'usb-braille', 'expected':True}, # Property chardev is required - {'device':'usb-mtp', 'expected':True}, # x-root property must be configured + {'device':'usb-mtp', 'expected':True}, # rootdir property must be configured {'device':'usb-redir', 'expected':True}, # Parameter 'chardev' is missing {'device':'usb-serial', 'expected':True}, # Property chardev is required {'device':'usb-storage', 'expected':True}, # drive property not set From f7c36a754c0a597e6c397e6e21e03798fc2eee69 Mon Sep 17 00:00:00 2001 From: Bandan Das Date: Fri, 7 Sep 2018 18:08:51 -0400 Subject: [PATCH 3/5] usb-mtp: reset ObjectInfo dataset size on cleanup Stale values in this field may result in qemu expecting more data on the next operation Signed-off-by: Bandan Das Message-id: 20180907220851.9658-4-bsd@redhat.com Signed-off-by: Gerd Hoffmann --- hw/usb/dev-mtp.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/hw/usb/dev-mtp.c b/hw/usb/dev-mtp.c index 15edf3bb82..00a3691bae 100644 --- a/hw/usb/dev-mtp.c +++ b/hw/usb/dev-mtp.c @@ -1568,6 +1568,7 @@ static void usb_mtp_handle_control(USBDevice *dev, USBPacket *p, if (s->write_pending) { g_free(s->dataset.filename); s->write_pending = false; + s->dataset.size = 0; } usb_mtp_data_free(s->data_out); s->data_out = NULL; @@ -1693,6 +1694,7 @@ done: } free: g_free(s->dataset.filename); + s->dataset.size = 0; g_free(path); s->write_pending = false; } From 3e9191acb797e4298adb853bf6c75cd31af47ef9 Mon Sep 17 00:00:00 2001 From: Gerd Hoffmann Date: Wed, 12 Sep 2018 13:40:12 +0200 Subject: [PATCH 4/5] usb-hub: clear suspend on detach Signed-off-by: Gerd Hoffmann Message-id: 20180912114012.6034-1-kraxel@redhat.com --- hw/usb/dev-hub.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/hw/usb/dev-hub.c b/hw/usb/dev-hub.c index 5d9743ef93..dc368179d1 100644 --- a/hw/usb/dev-hub.c +++ b/hw/usb/dev-hub.c @@ -191,6 +191,10 @@ static void usb_hub_detach(USBPort *port1) port->wPortStatus &= ~PORT_STAT_ENABLE; port->wPortChange |= PORT_STAT_C_ENABLE; } + if (port->wPortStatus & PORT_STAT_SUSPEND) { + port->wPortStatus &= ~PORT_STAT_SUSPEND; + port->wPortChange |= PORT_STAT_C_SUSPEND; + } usb_wakeup(s->intr, 0); } From a60f39a4681b369bdcc78a9d1a1067d4a6bb8736 Mon Sep 17 00:00:00 2001 From: Miguel GAIO Date: Thu, 27 Sep 2018 17:19:36 +0200 Subject: [PATCH 5/5] ohci: set effectively usb frame rate to 1kHz USB frame rate is slightly lower than 1kHz: ie. ~950Hz. Thus usb-audio device is not able to perform a simple audio playback without underruns on audio backend. eg. "-device pci-ohci,id=ohci -device usb-audio,bus=ohci.0" vs PulseAudio backend. more than 50 underruns are observed per second. Update ohci_sof_time computation, using QEMU_CLOCK_VIRTUAL in ohci_usb_start(), and increment by usb_frame_time in ohci_sof() makes USB frame rate close to 1kHz. This way, no audio underrun are observed during audio playback. Signed-off-by: Miguel GAIO Message-Id: <20180927151936.3647-1-mgaio35@gmail.com> Signed-off-by: Gerd Hoffmann --- hw/usb/hcd-ohci.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/hw/usb/hcd-ohci.c b/hw/usb/hcd-ohci.c index 98da5f0f04..66656a1133 100644 --- a/hw/usb/hcd-ohci.c +++ b/hw/usb/hcd-ohci.c @@ -1253,12 +1253,12 @@ static int ohci_service_ed_list(OHCIState *ohci, uint32_t head, int completion) /* set a timer for EOF */ static void ohci_eof_timer(OHCIState *ohci) { - ohci->sof_time = qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL); timer_mod(ohci->eof_timer, ohci->sof_time + usb_frame_time); } /* Set a timer for EOF and generate a SOF event */ static void ohci_sof(OHCIState *ohci) { + ohci->sof_time += usb_frame_time; ohci_eof_timer(ohci); ohci_set_interrupt(ohci, OHCI_INTR_SF); } @@ -1362,6 +1362,7 @@ static int ohci_bus_start(OHCIState *ohci) * can meet some race conditions */ + ohci->sof_time = qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL); ohci_eof_timer(ohci); return 1; @@ -1476,6 +1477,9 @@ static uint32_t ohci_get_frame_remaining(OHCIState *ohci) * set already. */ tks = qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL) - ohci->sof_time; + if (tks < 0) { + tks = 0; + } /* avoid muldiv if possible */ if (tks >= usb_frame_time)