linux.git/drivers/media/cec, branch v5.3.2

media: cec-notifier: add new notifier functions

2019-06-27T11:19:43+00:00

In order to support multiple CEC devices for an HDMI connector,
and to support cec_connector_info, drivers should use either a
cec_notifier_conn_(un)register pair of functions (HDMI drivers)
or a cec_notifier_cec_adap_(un)register pair (CEC adapter drivers).

This replaces cec_notifier_get_conn/cec_notifier_put.

For CEC adapters it is also no longer needed to call cec_notifier_register,
cec_register_cec_notifier and cec_notifier_unregister. This is now
all handled internally by the new functions.

Signed-off-by: Hans Verkuil 
Signed-off-by: Mauro Carvalho Chehab

media: cec: add struct cec_connector_info support

2019-06-27T11:18:43+00:00

Define struct cec_connector_info in media/cec.h and define
CEC_CAP_CONNECTOR_INFO. In a later patch this will be moved to
uapi/linux/cec.h.

The CEC_CAP_CONNECTOR_INFO capability can be set by drivers, but
cec_allocate_adapter() will remove it again until the public API
for this can be enabled once all drm drivers wire this up correctly.

Also add the cec_fill_conn_info_from_drm and cec_s_conn_info functions,
which are needed by drm drivers to fill in the cec_connector info
based on a drm_connector.

The cec_notifier_(un)register and cec_register_cec_notifier
prototypes were moved from cec-notifier.h to cec.h since cec.h no longer
includes cec-notifier.h. These headers included each other before,
which caused various problems.

Due to these changes the seco-cec driver was changed as well: it
should include cec-notifier.h, not cec.h.

Signed-off-by: Dariusz Marcinkiewicz 
Signed-off-by: Hans Verkuil 
Signed-off-by: Mauro Carvalho Chehab

media: cec-notifier: rename variables, check kstrdup and n->conn_name

2019-06-27T11:17:24+00:00

dev -> hdmi_dev
conn -> conn_name

Check if n->conn_name is not NULL before calling strcmp.
Check the result of kstrdup, and clean up on error.

Signed-off-by: Hans Verkuil 
Signed-off-by: Mauro Carvalho Chehab

media: cec-adap: fix regression in ping sanity check

2019-05-29T14:38:11+00:00

Commit b6c96e156825 inadvertently also dropped the 'msg->len > 1' test
from the preceding sanity check. This caused compliance test failures.

Fixes: b6c96e156825 ("media: cec: allow any initiator for Ping and Image/Text View On")

Signed-off-by: Hans Verkuil 
Signed-off-by: Mauro Carvalho Chehab

Merge tag 'v5.2-rc2' into patchwork

2019-05-28T15:21:51+00:00

Merge back from upstream into media tree, as there are some
patches merged upstream that has pontential of causing
conflicts (one actually rised a conflict already).

Linux 5.2-rc2

* tag 'v5.2-rc2': (377 commits)
  Linux 5.2-rc2
  random: fix soft lockup when trying to read from an uninitialized blocking pool
  tracing: Silence GCC 9 array bounds warning
  ext4: fix dcache lookup of !casefolded directories
  locking/lock_events: Use this_cpu_add() when necessary
  KVM: x86: fix return value for reserved EFER
  tools/kvm_stat: fix fields filter for child events
  KVM: selftests: Wrap vcpu_nested_state_get/set functions with x86 guard
  kvm: selftests: aarch64: compile with warnings on
  kvm: selftests: aarch64: fix default vm mode
  kvm: selftests: aarch64: dirty_log_test: fix unaligned memslot size
  KVM: s390: fix memory slot handling for KVM_SET_USER_MEMORY_REGION
  KVM: x86/pmu: do not mask the value that is written to fixed PMUs
  KVM: x86/pmu: mask the result of rdpmc according to the width of the counters
  x86/kvm/pmu: Set AMD's virt PMU version to 1
  KVM: x86: do not spam dmesg with VMCS/VMCB dumps
  kvm: Check irqchip mode before assign irqfd
  kvm: svm/avic: fix off-by-one in checking host APIC ID
  KVM: selftests: do not blindly clobber registers in guest asm
  KVM: selftests: Remove duplicated TEST_ASSERT in hyperv_cpuid.c
  ...

media: cec: allow any initiator for Ping and Image/Text View On

2019-05-23T09:37:02+00:00

Some displays pull down the HPD when in standby, but CEC is still
active and the display can be woken up by sending an Image View On
or Text View On CEC command. The CEC specification doesn't tell you
what the initiator should be for such a command (without a HPD it's
unclear if the CEC adapter can claim a logical address).

This patch allows any initiator value when there is no HPD for the
Image/Text View On commands and for the Ping command.

Signed-off-by: Hans Verkuil 
Signed-off-by: Mauro Carvalho Chehab

media: cec: support CEC_MSG_FL_RAW

2019-05-23T09:34:27+00:00

If this flag is set, then check for root permissions and skip
all message checks expect for the core checks (i.e. validate the
length etc.).

Signed-off-by: Hans Verkuil 
Signed-off-by: Mauro Carvalho Chehab

media: cec: add CEC_MSG_FL_RAW flag and msg_is_raw helper function

2019-05-23T09:32:40+00:00

This adds the userspace API to send raw unchecked CEC messages.
This will require root permissions.

Signed-off-by: Hans Verkuil 
Signed-off-by: Mauro Carvalho Chehab

media: cec: move check from cec_transmit to cec_transmit_msg_fh

2019-05-23T09:31:35+00:00

This ensures all the cec_msg checks are done in the same place.

Signed-off-by: Hans Verkuil 
Signed-off-by: Mauro Carvalho Chehab

media: cec: cec_transmit_msg_fh: do sanity checks first

2019-05-23T09:30:47+00:00

The code that fills in the CEC_MSG_CDC_MESSAGE physical address
is now done after the sanity checks. It also only does this if the
message length is >= 4 (i.e. there is room for the physical address).

Signed-off-by: Hans Verkuil 
Signed-off-by: Mauro Carvalho Chehab