linux/drivers/staging/media/cec, branch master

[media] cec: move the CEC framework out of staging and to media

2016-11-16T17:40:20Z

The last open issues have been addressed, so it is time to move this out of staging and into the mainline and to move the public cec headers to include/uapi/linux. Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab

[media] cec: add proper support for CDC-Only CEC devices

2016-11-16T17:36:03Z

CDC-Only CEC devices are CEC devices that can only handle CDC messages, all other messages are ignored. Add a flag to signal that this is a CDC-Only device and act accordingly. Also add helper functions to identify if a CEC device is configured as a CDC-Only device, a second TV, a switch or a processor, since these variations cannot be determined by the logical address alone. Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab

[media] cec: accept two replies for CEC_MSG_INITIATE_ARC

2016-11-16T17:34:55Z

The CEC_MSG_INITIATE_ARC message is special since it is the ONLY CEC message that accepts two possible valid replies: CEC_MSG_REPORT_ARC_INITIATED and CEC_MSG_REPORT_ARC_TERMINATED. So if the transmitted message is CEC_MSG_INITIATE_ARC and the remote side replied with CEC_MSG_REPORT_ARC_INITIATED or CEC_MSG_REPORT_ARC_TERMINATED, then a msg->reply value of CEC_MSG_REPORT_ARC_INITIATED or CEC_MSG_REPORT_ARC_TERMINATED will match either reply. I thought about either adding a second reply2 field, but that's ugly for all other messages that have only one reply, and what if in the future a new message is added that can have three replies? Another option would be to add a cec_msg flag, but really, the combination of CEC_MSG_REPORT_ARC_INITIATED and a reply value of one of the two possible replies already functions as a flag. Another advantage of this approach is that it is safe to re-use a cec_msg struct. No need to zero a flags field or a reply2 field. So since this really is an exception in the CEC specification, I decided to implement it as an exception as well. Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab

[media] cec: filter invalid messages

2016-11-16T17:33:44Z

As per the CEC specification: - CEC messages with a too-small payload should be ignored. - Broadcast messages that are only allowed as directed messages should be ignored. - Directed messages that are only allowed as broadcast messages should be ignored. Implement this in the core CEC framework. Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab

[media] cec: add CEC_MSG_FL_REPLY_TO_FOLLOWERS

2016-11-16T17:32:56Z

Give the caller more control over how replies to a transmit are handled. By default the reply will only go to the filehandle that called CEC_TRANSMIT. If this new flag is set, then the reply will also go to all followers. Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab

[media] cec: add flag to cec_log_addrs to enable RC passthrough

2016-11-16T17:32:07Z

By default the CEC_MSG_USER_CONTROL_PRESSED/RELEASED messages are passed on to the follower(s) only. If the new CEC_LOG_ADDRS_FL_ALLOW_RC_PASSTHRU flag is set in the flags field of struct cec_log_addrs then these messages are also passed on to the remote control input subsystem and they will appear as keystrokes. This used to be the default behavior, but now you have to explicitly enable it. This is done to force the caller to think about possible security issues (e.g. if these messages are used to enter passwords). Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab

Merge tag 'v4.8' into patchwork

2016-10-05T19:43:53Z

Linux 4.8 * tag 'v4.8': (1761 commits) Linux 4.8 ARM: 8618/1: decompressor: reset ttbcr fields to use TTBR0 on ARMv7 MIPS: CM: Fix mips_cm_max_vp_width for non-MT kernels on MT systems include/linux/property.h: fix typo/compile error ocfs2: fix deadlock on mmapped page in ocfs2_write_begin_nolock() mm: workingset: fix crash in shadow node shrinker caused by replace_page_cache_page() MAINTAINERS: Switch to kernel.org email address for Javi Merino x86/entry/64: Fix context tracking state warning when load_gs_index fails x86/boot: Initialize FPU and X86_FEATURE_ALWAYS even if we don't have CPUID x86/vdso: Fix building on big endian host x86/boot: Fix another __read_cr4() case on 486 sctp: fix the issue sctp_diag uses lock_sock in rcu_read_lock sctp: change to check peer prsctp_capable when using prsctp polices sctp: remove prsctp_param from sctp_chunk sctp: move sent_count to the memory hole in sctp_chunk tg3: Avoid NULL pointer dereference in tg3_io_error_detected() x86/init: Fix cr4_init_shadow() on CR4-less machines MIPS: Fix detection of unsupported highmem with cache aliases MIPS: Malta: Fix IOCU disable switch read for MIPS64 MIPS: Fix BUILD_ROLLBACK_PROLOGUE for microMIPS ...

[media] cec: fix Kconfig help text

2016-09-19T16:01:35Z

MEDIA_CEC is no longer a tristate option, so the user can't actually choose M. Whether the code is built-in or built as a module is decided somewhere else. Fixes: 5bb2399a4fe4 ("[media] cec: fix Kconfig dependency problems") Signed-off-by: Jean Delvare Cc: Arnd Bergmann Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab

[media] cec: fix ioctl return code when not registered

2016-09-09T13:38:33Z

Don't return the confusing -EIO error code when the device is not registered, instead return -ENODEV which is the proper thing to do in this situation. Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab

[media] cec: don't Feature Abort broadcast msgs when unregistered

2016-09-09T13:38:18Z

If the adapter is configured as 'Unregistered', then cec_receive_notify incorrectly thinks that broadcast messages are directed messages. The destination for broadcast messages is 0xf, and the logical address assigned to Unregistered devices is also 0xf and the logic didn't handle that correctly. Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab