Signed-off-by: NMartin Bugge <marbugge@cisco.com>
Signed-off-by: NHans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>

The method of disabling the irq-output pin caused many "empty"
interrupts. Instead, actually disable/enable the interrupts by
changing the interrupt masks.

Also enable STORE_MASKED_IRQ in INT1 configuration, otherwise when HDMI
events happen while the interrupt is masked those events will be ignored
when the interrupt is unmasked.
Signed-off-by: NMartin Bugge <marbugge@cisco.com>
Signed-off-by: NHans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>

Bit 6 of register 0x8f was cleared incorrectly (must be 1), and bit 4
of register 0x91 was set incorrectly (must be 0).

These bits are undocumented, so we shouldn't modify them to values different
from what the datasheet specifies.
Signed-off-by: NMartin Bugge <marbugge@cisco.com>
Signed-off-by: NHans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>

This simplified the code quite a bit.
Signed-off-by: NMartin Bugge <marbugge@cisco.com>
Signed-off-by: NHans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>

This timing must be supported by all HDMI equipment, so that's a
reasonable default.
Signed-off-by: NHans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>

Signed-off-by: NMartin Bugge <marbugge@cisco.com>
Signed-off-by: NHans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>

Signed-off-by: NMats Randgaard <matrandg@cisco.com>
Signed-off-by: NHans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>

Some sources are initially detected as DVI, and change to HDMI later.
This must be detected to set the right RGB quantization range.
Signed-off-by: NMats Randgaard <matrandg@cisco.com>
Signed-off-by: NHans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>

If the input signal is DVI-D and quantization range is RGB full range,
gain and offset must be adjusted to get the right range on the output.
Signed-off-by: NMats Randgaard <matrandg@cisco.com>
Signed-off-by: NHans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>

If the restart_stdi_once trick fails to find a valid
format the flag was never reset.
Signed-off-by: NMartin Bugge <marbugge@cisco.com>
Cc: Mats Randgaard <matrandg@cisco.com>
Signed-off-by: NHans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>

- Mute audio before switching inputs to avoid noise/pops
- Mute audio if audio FIFO over-/underflows (AD Recommended setting)
- Reset FIFO if it over-/underflows (AD Recommended setting)
Signed-off-by: NMats Randgaard <matrandg@cisco.com>
Signed-off-by: NHans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>

ADV7604_FMT_CHANGE events was debounced in adv7604_isr() to avoid
that a receiver with a unstable input signal would block the event
handling for other inputs. This solution was prone to errors.

A better protection agains interrupt blocking is to delay the call
of the interrupt service routine in the adv7604 driver if too many
interrupts are received within a given time.
Signed-off-by: NMats Randgaard <matrandg@cisco.com>
Signed-off-by: NHans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>

Signed-off-by: NMats Randgaard <matrandg@cisco.com>
Signed-off-by: NHans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>

May also be wrong if the receiver is connected to more than one connector.
Signed-off-by: NMats Randgaard <matrandg@cisco.com>
Signed-off-by: NHans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>

- split edid_write_block()
- do not use edid->edid before the validity check
- Return -EINVAL if edid->pad is invalid
- Save both registers for SPA port A
- Set SPA location to default value if it is not found
Signed-off-by: NMats Randgaard <matrandg@cisco.com>
Signed-off-by: NHans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>

Signed-off-by: NMats Randgaard <matrandg@cisco.com>
Signed-off-by: NHans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>

Signed-off-by: NMats Randgaard <matrandg@cisco.com>
Signed-off-by: NHans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>

If the input is ADV7604_INPUT_VGA_RGB and RGB quantization range is
set to V4L2_DV_RGB_RANGE_AUTO, video with CEA timings will be
received as RGB. For ADV7604_INPUT_VGA_COMP, automatic CSC mode
will be selected.

See table 44 on page 205 in "ADV7604 Hardware Manual, Rev. F, August 2010"
for details.
Signed-off-by: NMats Randgaard <matrandg@cisco.com>
Signed-off-by: NHans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>

Signed-off-by: NHans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>

Signed-off-by: NMartin Bugge <marbugge@cisco.com>
Signed-off-by: NHans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>

The driver strength is board dependent, so set it from the platform_data.
Signed-off-by: NMikhail Khelik <mkhelik@cisco.com>
Signed-off-by: NHans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>

The adv7604 supports four digital input ports. This patch adds support
for all of them, instead of just port A.
Signed-off-by: NMats Randgaard <matrandg@cisco.com>
Signed-off-by: NHans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>

Ignore EDID's where the header is wrong.
Signed-off-by: NMartin Bugge <marbugge@cisco.com>
Signed-off-by: NHans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>

Improve status logging.
Signed-off-by: NMartin Bugge <marbugge@cisco.com>
Signed-off-by: NHans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>

Whenever the hotplug pin is pulled low the chip resets a whole bunch
of registers. It turns out that this can be turned off on the adv7511.
Do so, as this 'feature' introduces race conditions in setting up
registers, particular when the hotplug pin bounces a lot.
Signed-off-by: NMartin Bugge <marbugge@cisco.com>
Signed-off-by: NHans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>

Retry setup if the device is powered off when it should be powered on. This
state can be caused by rapid hotplug toggles.
Signed-off-by: NMartin Bugge <marbugge@cisco.com>
Signed-off-by: NHans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>

Removed dependency on rx-sense interrupt, it's a leftover from obsolete
code. Removing this simplifies the code.
Signed-off-by: NMartin Bugge <marbugge@cisco.com>
Signed-off-by: NHans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>

Signed-off-by: NMartin Bugge <marbugge@cisco.com>
Signed-off-by: NHans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>

Ignore EDIDs where the header is wrong.
Signed-off-by: NMats Randgaard <matrandg@cisco.com>
Signed-off-by: NHans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>

For devices with a separated audio-only interface (em2860), call
em28xx_init_extension() only once.

That fixes a bug with Kworld 305U (eb1a:e305):

    [  658.730715] em2860 #0: V4L2 video device registered as video1
    [  658.730728] em2860 #0: V4L2 VBI device registered as vbi0
    [  658.736907] em2860 #0: Remote control support is not available for this card.
    [  658.736965] em2860 #1: Remote control support is not available for this card.
    [  658.737230] ------------[ cut here ]------------
    [  658.737246] WARNING: CPU: 2 PID: 60 at lib/list_debug.c:36 __list_add+0x8a/0xc0()
    [  658.737256] list_add double add: new=ffff8800a9a40410, prev=ffff8800a9a40410, next=ffffffffa08720d0.
    [  658.737266] Modules linked in: tuner_xc2028 netconsole rc_hauppauge em28xx_rc rc_core tuner_simple tuner_types tda9887 tda8290 tuner tvp5150 msp3400 em28xx_v4l em28xx tveeprom
 v4l2_common fuse ccm nf_conntrack_netbios_ns nf_conntrack_broadcast ipt_MASQUERADE ip6t_REJECT xt_conntrack ebtable_nat ebtable_broute bridge stp llc ebtable_filter ebtables ip6tabl
e_nat nf_conntrack_ipv6 nf_defrag_ipv6 nf_nat_ipv6 ip6table_mangle ip6table_security ip6table_raw ip6table_filter ip6_tables iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4
nf_nat nf_conntrack iptable_mangle iptable_security bnep iptable_raw vfat fat arc4 iwldvm mac80211 x86_pkg_temp_thermal coretemp kvm_intel nfsd iwlwifi snd_hda_codec_hdmi kvm snd_hda
_codec_realtek snd_hda_intel snd_hda_codec auth_rpcgss nfs_acl cfg80211 lockd snd_hwdep snd_seq btusb sunrpc crc32_pclmul bluetooth crc32c_intel snd_seq_device snd_pcm uvcvideo r8169
 ghash_clmulni_intel videobuf2_vmalloc videobuf2_memops videobuf2_core snd_page_alloc snd_timer snd videodev mei_me iTCO_wdt mii shpchp joydev mei media iTCO_vendor_support lpc_ich m
icrocode soundcore rfkill serio_raw i2c_i801 mfd_core nouveau i915 ttm i2c_algo_bit drm_kms_helper drm i2c_core mxm_wmi wmi video
    [  658.738601] CPU: 2 PID: 60 Comm: kworker/2:1 Not tainted 3.13.0-rc1+ #18
    [  658.738611] Hardware name: SAMSUNG ELECTRONICS CO., LTD. 550P5C/550P7C/SAMSUNG_NP1234567890, BIOS P04ABI.013.130220.dg 02/20/2013
    [  658.738624] Workqueue: events request_module_async [em28xx]
    [  658.738646]  0000000000000009 ffff8802209dfc68 ffffffff816a3c96 ffff8802209dfcb0
    [  658.738700]  ffff8802209dfca0 ffffffff8106aaad ffff8800a9a40410 ffffffffa08720d0
    [  658.738754]  ffff8800a9a40410 0000000000000000 0000000000000080 ffff8802209dfd00
    [  658.738814] Call Trace:
    [  658.738836]  [<ffffffff816a3c96>] dump_stack+0x45/0x56
    [  658.738851]  [<ffffffff8106aaad>] warn_slowpath_common+0x7d/0xa0
    [  658.738864]  [<ffffffff8106ab1c>] warn_slowpath_fmt+0x4c/0x50
    [  658.738880]  [<ffffffffa0868a7d>] ? em28xx_init_extension+0x1d/0x80 [em28xx]
    [  658.738898]  [<ffffffff81343b8a>] __list_add+0x8a/0xc0
    [  658.738911]  [<ffffffffa0868a98>] em28xx_init_extension+0x38/0x80 [em28xx]
    [  658.738927]  [<ffffffffa086a059>] request_module_async+0x19/0x110 [em28xx]
    [  658.738942]  [<ffffffff810873b5>] process_one_work+0x1f5/0x510
    [  658.738954]  [<ffffffff81087353>] ? process_one_work+0x193/0x510
    [  658.738967]  [<ffffffff810880bb>] worker_thread+0x11b/0x3a0
    [  658.738979]  [<ffffffff81087fa0>] ? manage_workers.isra.24+0x2b0/0x2b0
    [  658.738992]  [<ffffffff8108ea2f>] kthread+0xff/0x120
    [  658.739005]  [<ffffffff8108e930>] ? kthread_create_on_node+0x250/0x250
    [  658.739017]  [<ffffffff816b517c>] ret_from_fork+0x7c/0xb0
    [  658.739029]  [<ffffffff8108e930>] ? kthread_create_on_node+0x250/0x250
    [  658.739040] ---[ end trace c1acd24b354108de ]---
    [  658.739051] em2860 #1: Remote control support is not available for this card.
    [  658.742407] em28xx-audio.c: probing for em28xx Audio Vendor Class
    [  658.742429] em28xx-audio.c: Copyright (C) 2006 Markus Rechberger
    [  658.742440] em28xx-audio.c: Copyright (C) 2007-2011 Mauro Carvalho Chehab
    [  658.744798] em28xx-audio.c: probing for em28xx Audio Vendor Class
    [  658.744823] em28xx-audio.c: Copyright (C) 2006 Markus Rechberger
    [  658.744836] em28xx-audio.c: Copyright (C) 2007-2011 Mauro Carvalho Chehab
    [  658.746849] em28xx-audio.c: probing for em28xx Audio Vendor Class
    [  658.746863] em28xx-audio.c: Copyright (C) 2006 Markus Rechberger
    [  658.746874] em28xx-audio.c: Copyright (C) 2007-2011 Mauro Carvalho Chehab
    ...
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>

A few devices (em2860) use a separate interface for audio only
Audio Vendor Class USB. That interface should not be used by
Remote Controller, Analog TV or Digital TV.

Prevents initializing all non-audio extensions for the audio
only interface.
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>

Use the same module version on all em28xx sub-modules, and use
the same naming convention to describe the driver.
Reviewed-by: NFrank Schäfer <fschaefer.oss@googlemail.com>
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>

Better to split chipset detection from the audio setup. So, move the
detection code to em28xx_init_dev().
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>

Add a message with consistent prints before and after each
extension initialization, and provide a better text for module
load.

While here, add a missing sanity check for extension finish
code at em28xx-v4l extension.
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>

Now that all analog-specific code are at em28xx-video, convert
it into an em28xx extension and load it as a separate module.
Reviewed-by: NFrank Schäfer <fschaefer.oss@googlemail.com>
Tested-by: NFrank Schäfer <fschaefer.oss@googlemail.com>
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>

Fix the error handling logic, making it to unregister i2c bus 0, in
case of a failure to register the second bus.
Reported-by: NFrank Schäfer <fschaefer.oss@googlemail.com>
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>

There are several init code inside em28xx-cards that are actually
part of analog initialization. Move the code to em28x-video, in
order to remove part of the mess.

In thesis, no functional changes so far.
Reviewed-by: NFrank Schäfer <fschaefer.oss@googlemail.com>
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>

When em28xx extensions are loaded/removed, there are two locks:

a single static em28xx_devlist_mutex that registers each extension
and the struct em28xx dev->lock.

When extensions are registered, em28xx_devlist_mutex is taken first,
and then dev->lock.

Be sure that, when extensions are being removed, the same order
will be used.
Reviewed-by: NFrank Schäfer <fschaefer.oss@googlemail.com>
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>

In order to make easier for the next patches, do some
cosmetic changes.

No functional changes.
Reviewed-by: NFrank Schäfer <fschaefer.oss@googlemail.com>
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>

Now that we want to split the video handling to a separate
module, move all video-specific functions to em28xx-video.

No functional changes.
Reviewed-by: NFrank Schäfer <fschaefer.oss@googlemail.com>
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>