Commit Graph

752207 Commits

Author SHA1 Message Date
Mauro Carvalho Chehab
baa057e29b media: v4l2-dev: use pr_foo() for printing messages
Instead of using printk() directly, use the pr_foo()
macros.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-05-04 16:02:25 -04:00
Chris Lesiak
fd32d53496 media: platform: video-mux: propagate format from sink to source
Propagate the v4l2_mbus_framefmt to the source pad when either a sink
pad is activated or when the format of the active sink pad changes.

Signed-off-by: Chris Lesiak <chris.lesiak@licor.com>
Reviewed-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-05-04 15:56:15 -04:00
Nasser Afshin
65dc760bb4 media: i2c: tvp5150: Fix open brace placement codding style
This patch resolves the following checkpatch.pl error:
    ERROR: that open brace { should be on the previous line

Signed-off-by: Nasser Afshin <Afshin.Nasser@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-05-04 15:51:49 -04:00
Nasser Afshin
9bfd8f88dc media: i2c: tvp5150: Use the correct comment style
This patch resolves checkpatch.pl warnings:
    WARNING: Block comments use * on subsequent lines
    WARNING: Block comments use a trailing */ on a separate line

Signed-off-by: Nasser Afshin <Afshin.Nasser@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-05-04 15:51:27 -04:00
Nasser Afshin
4efcd5ed94 media: i2c: tvp5150: Add a space after commas
This patch resolves checkpatch.pl errors:
    ERROR: space required after that ',' (ctx:VxV)

Signed-off-by: Nasser Afshin <Afshin.Nasser@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-05-04 15:51:07 -04:00
Nasser Afshin
bb7a3681b2 media: i2c: tvp5150: Use parentheses for sizeof
This patch resolves a checkpatch.pl warning:
    WARNING: sizeof *cap should be sizeof(*cap)

Signed-off-by: Nasser Afshin <Afshin.Nasser@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-05-04 15:49:52 -04:00
Samuel Williams
6f7e780b7e media: bttv: Fixed oops error when capturing at yuv410p
When capturing at yuv410p, sg_next was called too many times when chroma is
false, eventually returning NULL. This patch does fix this for my hardware.

Signed-off-by: Samuel Williams <sam8641@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-05-04 15:27:31 -04:00
Akihiro Tsukada
a03e457bb1 media: tuners/qm1d1c0042: use SPDX License Identifier
Signed-off-by: Akihiro Tsukada <tskd08@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-05-04 14:45:45 -04:00
Akihiro Tsukada
f9f51c2cad media: tuners/mxl301rf: use SPDX License Identifier
Signed-off-by: Akihiro Tsukada <tskd08@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-05-04 14:45:21 -04:00
Akihiro Tsukada
a296f7bfca media: dvb/pci/pt3: use SPDX License Identifier
Signed-off-by: Akihiro Tsukada <tskd08@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-05-04 14:44:57 -04:00
Akihiro Tsukada
072cf1aafc media: dvb-frontends/tc90522: use SPDX License Identifier
Signed-off-by: Akihiro Tsukada <tskd08@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-05-04 14:44:30 -04:00
Akihiro Tsukada
a28a63b2b2 media: dvb-core/dvb_frontend: set better default for ISDB-T
DTV_ISDBT_LAYER_ENABLED parameter should be set to "All" by default,
instead of "None", as described in the API document.

Signed-off-by: Akihiro Tsukada <tskd08@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-05-04 14:44:04 -04:00
Akihiro Tsukada
1c96f3deb6 media: dvb-frontends/tc90522: fix bit shift mistakes
GIT_AUTHOR_NAME=Akihiro TSUKADA
GIT_AUTHOR_EMAIL=tskd08@gmail.com

they were obviously wrong.

Signed-off-by: Akihiro Tsukada <tskd08@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-05-04 14:43:41 -04:00
Fabio Estevam
0872f4f4f1 media: ov13858: Remove owner assignment from i2c_driver
Structure i2c_driver does not need to set the owner field, as this will
be populated by the driver core.

Generated by scripts/coccinelle/api/platform_no_drv_owner.cocci.

Cc: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-05-04 14:33:48 -04:00
Fabio Estevam
949abce61c media: ov5695: Remove owner assignment from i2c_driver
Structure i2c_driver does not need to set the owner field, as this will
be populated by the driver core.

Generated by scripts/coccinelle/api/platform_no_drv_owner.cocci.

Cc: Shunqian Zheng <zhengsq@rock-chips.com>
Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-05-04 14:33:25 -04:00
Chris Mayo
0a8b9993df media: em28xx-cards: output regular messages as info
Messages expected during device probe were being marked as errors.

Signed-off-by: Chris Mayo <aklhfex@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-05-04 14:32:46 -04:00
Mauro Carvalho Chehab
59a8914011 media: pt3: no need to check if null for dvb_module_release()
Such check is already there at the routine. So, no need to
repeat it outside.

Cc: Akihiro Tsukada <tskd08@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-05-04 14:23:43 -04:00
Akihiro Tsukada
1e25101387 media: media/dvb: earth-pt3: use the new i2c binding helper
This patch slightly simplifies the binding code by introducing commit
8f569c0b4e ("media: dvb-core: add helper functions for I2C binding").

Signed-off-by: Akihiro Tsukada <tskd08@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-05-04 14:22:16 -04:00
Rainer Keller
5b1a270d22 media: dvb: add alternative USB PID for Hauppauge WinTV-soloHD
Newer DVB receivers of this type have a different USB PID.

Signed-off-by: Rainer Keller <mail@rainerkeller.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-05-04 14:20:55 -04:00
Daniel Scheller
2dc3e05046 media: ddbridge, cxd2099: include guard, fix unneeded NULL init, strings
Three really tiny minors in this single commit which all on their own
would just clutter up the commit history unnecessarily:

* ddbridge-regs.h is lacking an include guard. Add it.
* Fix an unnecessary NULL initialisation in ddbridge-ci. The declaration
  of the ci struct ptr is immediately followed by kzalloc().
* Clarify that the CXD2099AR is a Sony device in the cxd2099 driver at a
  few places including Kconfig.

Signed-off-by: Daniel Scheller <d.scheller@gmx.net>
Acked-by: Jasmin Jessich <jasmin@anw.at>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-05-04 14:20:24 -04:00
Arnd Bergmann
53dcd70eb7 media: cxd2880-spi: avoid out-of-bounds access warning
The -Warray-bounds warning in gcc-8 triggers for a newly added file:

drivers/media/spi/cxd2880-spi.c: In function 'cxd2880_write_reg':
drivers/media/spi/cxd2880-spi.c:111:3: error: 'memcpy' forming offset [133, 258] is out of the bounds [0, 132] of object 'send_data' with type 'u8[132]' {aka 'unsigned char[132]'} [-Werror=array-bounds]

The problem appears to be that we have two range checks in this function,
first comparing against BURST_WRITE_MAX (128) and then comparing against
a literal '255'. The logic checking the buffer size looks at the second
one and decides that this might be the actual maximum data length.

This is understandable behavior from the compiler, but the code is actually
safe. Since the first check is already shorter, we can remove the loop
and only leave that. To be on the safe side in case BURST_WRITE_MAX might
be increased, I'm leaving the check against U8_MAX.

Fixes: bd24fcddf6 ("media: cxd2880-spi: Add support for CXD2880 SPI interface")

Cc: Martin Sebor <msebor@gmail.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Yasunari Takiguchi <Yasunari.Takiguchi@sony.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-05-04 11:27:00 -04:00
Mauro Carvalho Chehab
89eaaf2d19 media: lgdt330x: don't use an uninitialized state
If state is not initialized or is freed, we can't use it:
	drivers/media/dvb-frontends/lgdt330x.c:920 lgdt330x_probe() error: potential null dereference 'state'.  (kzalloc returns null)
	drivers/media/dvb-frontends/lgdt330x.c:920 lgdt330x_probe() error: we previously assumed 'state' could be null (see line 878)
	drivers/media/dvb-frontends/lgdt330x.c:920 lgdt330x_probe() error: dereferencing freed memory 'state'

Fixes: 23ba635d45 ("media: lgdt330x: convert it to the new I2C binding way")
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-05-04 11:17:58 -04:00
Mauro Carvalho Chehab
5f939c36b5 media: lgdt330x: add block error counts via DVBv5
Show the UCB error counts via DVBv5.

Please notice that there's no scale indication at the driver.
As we don't have the datasheet, let's assume that it is receiving
data at a rate of 10.000 packets per second. Ideally, this should
be read or estimated.

In order to avoid flooding I2C bus with data, the maximum
polling rate for those stats was set to 1 second.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-05-04 11:13:20 -04:00
Mauro Carvalho Chehab
ea2d7611fa media: lgdt330x: get rid of read_ber stub
This routine does nothing. Remove it.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-05-04 11:11:46 -04:00
Mauro Carvalho Chehab
19bdd0d661 media: lgdt330x: provide DVBv5 Carrier S/N measurements
Change the logic at the driver to provide CNR stats via
DVBv5 API.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-05-04 11:11:25 -04:00
Mauro Carvalho Chehab
53d41728f2 media: lgdt330x: move *read_status functions
In preparation to implement DVBv5 stats on this driver, move
the *read_status functions to happen after SNR and signal
strength routines.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-05-04 11:10:57 -04:00
Mauro Carvalho Chehab
1334a7dc5f media: lgdt330x: constify several register init arrays
There are several register init arrays there that can be
constified.

The change reduced a little bit the amount of initialized
data:

   text	   data	    bss	    dec	    hex	filename
   6372	    360	      4	   6736	   1a50	old/drivers/media/dvb-frontends/lgdt330x.o
   6500	    264	      4	   6768	   1a70	new/drivers/media/dvb-frontends/lgdt330x.o

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-05-04 11:10:28 -04:00
Mauro Carvalho Chehab
db9c1007bc media: lgdt330x: do some cleanups at status logic
Simplify a few ifs there.

While here, add debug messages for the 8-vsb and qam log status
flags.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-05-04 11:09:54 -04:00
Mauro Carvalho Chehab
23ba635d45 media: lgdt330x: convert it to the new I2C binding way
Convert the driver to allow its usage with the new I2C
binding way.

Please notice that this patch doesn't convert the
callers to bind to it using the new way.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-05-04 11:09:26 -04:00
Mauro Carvalho Chehab
ff093612b0 media: lgdt330x: print info when device gets probed
It is useful to know if the driver load succeded. So,
add a printk info there.

While here, improve the .init debug printed message.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-05-04 11:06:48 -04:00
Mauro Carvalho Chehab
6752c79719 media: lgdt330x: use pr_foo() macros
Cleanup the usecases of dprintk() by using pr_fmt() and replace
printk by pr_foo().

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-05-04 11:06:12 -04:00
Mauro Carvalho Chehab
467845a1a8 media: lgdt330x: fix coding style issues
As we're about to convert this driver to use the new i2c
binding way, let's first solve most coding style issues,
in order to avoid mixing coding style changes with code
changes.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-05-04 11:05:38 -04:00
Mauro Carvalho Chehab
7129d31484 media: lgdt330x: use kernel-doc instead of inlined comments
Change the lgdt330x_config documentation to use kernel-doc
style.

No functional changes.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-05-04 11:03:38 -04:00
Mauro Carvalho Chehab
509f89652f media: em28xx: fix a regression with HVR-950
Commit be7fd3c3a8 ("media: em28xx: Hauppauge DualHD second tuner
functionality") removed the logic with sets the alternate for the DVB
device. Without setting the right alternate, the device won't be
able to submit URBs, and userspace fails with -EMSGSIZE:

	ERROR     DMX_SET_PES_FILTER failed (PID = 0x2000): 90 Message too long

Tested with Hauppauge HVR-950 model A1C0.

Fixes: be7fd3c3a8 ("media: em28xx: Hauppauge DualHD second tuner functionality")

Cc: Brad Love <brad@nextdimension.cc>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-05-04 11:00:54 -04:00
Mauro Carvalho Chehab
adafae6229 media: v4l2-core: get rid of videobuf-dvb
Videobuf has been replaced by videobuf2. Now, no drivers use
the videobuf-dvb helper module anymore. So, get rid of it.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-05-04 10:57:31 -04:00
Mauro Carvalho Chehab
b2c20f2f3e media: cx231xx: get rid of videobuf-dvb dependency
This driver doesn't use videobuf-dvb. So, stop adding an
unused struct and unused header on it.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-05-04 10:56:57 -04:00
Mauro Carvalho Chehab
1a0c10ed7b media: dvb-usb-v2: stop using coherent memory for URBs
There's no need to use coherent buffers there. So, let the
DVB core do the allocation. That should give some performance
gain outside x86.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-05-04 10:56:19 -04:00
Mauro Carvalho Chehab
14f4eaedda media: dvbsky: fix driver unregister logic
There's a user-after-free there, if the frontend is attached
via the new I2C way:

[  112.539806] usbcore: deregistering interface driver dvb_usb_dvbsky
[  112.568489] ==================================================================
[  112.568600] BUG: KASAN: use-after-free in dvb_unregister_frontend+0x18/0xb0 [dvb_core]
[  112.568610] Read of size 8 at addr ffff8803a6f61530 by task rmmod/2246

[  112.568622] CPU: 0 PID: 2246 Comm: rmmod Not tainted 4.16.0-rc4+ #103
[  112.568624] Hardware name:  /NUC5i7RYB, BIOS RYBDWi35.86A.0364.2017.0511.0949 05/11/2017
[  112.568625] Call Trace:
[  112.568631]  dump_stack+0x5c/0x7c
[  112.568636]  print_address_description+0x6a/0x270
[  112.568640]  kasan_report+0x258/0x380
[  112.568657]  ? dvb_unregister_frontend+0x18/0xb0 [dvb_core]
[  112.568673]  dvb_unregister_frontend+0x18/0xb0 [dvb_core]
[  112.568681]  dvb_usbv2_exit+0x156/0x4a0 [dvb_usb_v2]
[  112.568689]  dvb_usbv2_disconnect+0xa0/0x140 [dvb_usb_v2]
[  112.568694]  usb_unbind_interface+0xd8/0x3f0
[  112.568700]  device_release_driver_internal+0x1ce/0x2f0
[  112.568705]  driver_detach+0x66/0xc0
[  112.568709]  bus_remove_driver+0x86/0x150
[  112.568713]  usb_deregister+0x90/0x180
[  112.568718]  SyS_delete_module+0x293/0x330
[  112.568721]  ? free_module+0x330/0x330
[  112.568725]  ? _cond_resched+0x16/0x50
[  112.568729]  ? task_work_run+0x7d/0xd0
[  112.568732]  ? mem_cgroup_handle_over_high+0x1c/0xc0
[  112.568736]  ? free_module+0x330/0x330
[  112.568740]  do_syscall_64+0xe7/0x250
[  112.568744]  entry_SYSCALL_64_after_hwframe+0x3d/0xa2
[  112.568747] RIP: 0033:0x7facafa272a7
[  112.568749] RSP: 002b:00007fffdea14cc8 EFLAGS: 00000206 ORIG_RAX: 00000000000000b0
[  112.568753] RAX: ffffffffffffffda RBX: 00007fffdea14d28 RCX: 00007facafa272a7
[  112.568755] RDX: 000000000000000a RSI: 0000000000000800 RDI: 00005599557337c8
[  112.568756] RBP: 0000559955733760 R08: 000000000000000a R09: 0000000000000000
[  112.568758] R10: 00007facafaa0280 R11: 0000000000000206 R12: 00007fffdea14ef0
[  112.568761] R13: 00007fffdea16eac R14: 0000559955733260 R15: 0000559955733760

[  112.568808] Allocated by task 638:
[  112.568816]  kasan_kmalloc+0xa0/0xd0
[  112.568820]  kmem_cache_alloc_trace+0x114/0x230
[  112.568826]  m88ds3103_probe+0x9a/0x643 [m88ds3103]
[  112.568830]  i2c_device_probe+0x2e9/0x3c0
[  112.568833]  driver_probe_device+0x46e/0x6a0
[  112.568836]  bus_for_each_drv+0xd6/0x130
[  112.568838]  __device_attach+0x166/0x1f0
[  112.568841]  bus_probe_device+0xea/0x110
[  112.568844]  device_add+0x6a3/0x9f0
[  112.568847]  i2c_new_device+0x28f/0x5c0
[  112.568861]  dvb_module_probe+0x91/0x110 [dvb_core]
[  112.568867]  dvbsky_s960c_attach+0x1c4/0x460 [dvb_usb_dvbsky]
[  112.568873]  dvb_usbv2_probe+0x1191/0x1950 [dvb_usb_v2]
[  112.568877]  usb_probe_interface+0x1b3/0x430
[  112.568880]  driver_probe_device+0x46e/0x6a0
[  112.568882]  __driver_attach+0xeb/0x110
[  112.568885]  bus_for_each_dev+0xe4/0x140
[  112.568888]  bus_add_driver+0x249/0x380
[  112.568891]  driver_register+0xc6/0x170
[  112.568893]  usb_register_driver+0xec/0x200
[  112.568896]  do_one_initcall+0x8f/0x1ee
[  112.568900]  do_init_module+0xde/0x320
[  112.568902]  load_module+0x3ed0/0x4850
[  112.568905]  SYSC_finit_module+0x192/0x1c0
[  112.568908]  do_syscall_64+0xe7/0x250
[  112.568911]  entry_SYSCALL_64_after_hwframe+0x3d/0xa2

[  112.568916] Freed by task 2246:
[  112.568923]  __kasan_slab_free+0x136/0x180
[  112.568925]  kfree+0xa5/0x1e0
[  112.568931]  m88ds3103_remove+0x42/0x60 [m88ds3103]
[  112.568934]  i2c_device_remove+0x72/0xd0
[  112.568937]  device_release_driver_internal+0x1ce/0x2f0
[  112.568940]  bus_remove_device+0x197/0x270
[  112.568942]  device_del+0x239/0x550
[  112.568945]  device_unregister+0x16/0x70
[  112.568949]  dvbsky_exit+0x4c/0x70 [dvb_usb_dvbsky]
[  112.568955]  dvb_usbv2_disconnect+0x98/0x140 [dvb_usb_v2]
[  112.568958]  usb_unbind_interface+0xd8/0x3f0
[  112.568961]  device_release_driver_internal+0x1ce/0x2f0
[  112.568964]  driver_detach+0x66/0xc0
[  112.568967]  bus_remove_driver+0x86/0x150
[  112.568970]  usb_deregister+0x90/0x180
[  112.568973]  SyS_delete_module+0x293/0x330
[  112.568976]  do_syscall_64+0xe7/0x250
[  112.568979]  entry_SYSCALL_64_after_hwframe+0x3d/0xa2

[  112.568985] The buggy address belongs to the object at ffff8803a6f61100
                which belongs to the cache kmalloc-2048 of size 2048
[  112.568998] The buggy address is located 1072 bytes inside of
                2048-byte region [ffff8803a6f61100, ffff8803a6f61900)
[  112.569008] The buggy address belongs to the page:
[  112.569015] page:ffffea000e9bd800 count:1 mapcount:0 mapping:0000000000000000 index:0x0 compound_mapcount: 0
[  112.569025] flags: 0x17ffe000008100(slab|head)
[  112.569034] raw: 0017ffe000008100 0000000000000000 0000000000000000 00000001000f000f
[  112.569044] raw: ffffea000ee2d000 0000000500000005 ffff880407002a80 0000000000000000
[  112.569053] page dumped because: kasan: bad access detected

[  112.569062] Memory state around the buggy address:
[  112.569070]  ffff8803a6f61400: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[  112.569079]  ffff8803a6f61480: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[  112.569088] >ffff8803a6f61500: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[  112.569095]                                      ^
[  112.569103]  ffff8803a6f61580: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[  112.569112]  ffff8803a6f61600: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[  112.569119] ==================================================================
[  112.569127] Disabling lock debugging due to kernel taint
[  112.571161] dvb_usb_v2: 'DVBSky S960CI:2-2' successfully deinitialized and disconnected

Fix it by letting the dvb-usb-v2 core to know that the frontend
was already removed.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-05-04 10:55:12 -04:00
Mauro Carvalho Chehab
2c7e3ca8fb media: dvbsky: use the new dvb_module_probe() API
Instead of repeating countless times a complex logic, use
the new dvb_module_probe()/dvb_module_release(), simplifying
the module.

That reduced about 15% at the module's size:

   text	   data	    bss	    dec	    hex	filename
   7083	   1108	     12	   8203	   200b	old/drivers/media/usb/dvb-usb-v2/dvbsky.o
   5817	   1108	     12	   6937	   1b19	new/drivers/media/usb/dvb-usb-v2/dvbsky.o

Tested with a DVBSky S960C DVB-S2 tuner (0572:960c)

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-05-04 10:54:39 -04:00
Daniel Scheller
edcc30820b media: ddbridge: set driver version to 0.9.33-integrated
Set DDBRIDGE_VERSION in ddbridge.h to 0.9.33-integrated to reflect the
updated driver.

Signed-off-by: Daniel Scheller <d.scheller@gmx.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-05-04 10:51:55 -04:00
Daniel Scheller
879973e5d6 media: ddbridge: recognize and attach the MaxSX8 cards
Add needed logic into dvb_input_attach(), ddb_port_probe() and
ddb_ports_init() to initialize and support these new cards.

Picked up from the upstream dddvb-0.9.33 release.

Signed-off-by: Daniel Scheller <d.scheller@gmx.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-05-04 10:51:33 -04:00
Daniel Scheller
c3eda33026 media: ddbridge: add hardware defs and PCI IDs for MCI cards
Add PCI IDs and ddb_info for the new MCI-based MaxSX8 cards. Also add
needed defines so the cards can be hooked up into ddbridge's probe and
attach handling.

Picked up from the upstream dddvb-0.9.33 release.

Signed-off-by: Daniel Scheller <d.scheller@gmx.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-05-04 10:51:05 -04:00
Daniel Scheller
b4b5b8dc10 media: ddbridge/max: implement MCI/MaxSX8 attach function
Implement frontend attachment as ddb_fe_attach_mci() into the
ddbridge-max module. The MaxSX8 MCI cards are part of the Max card series
and make use of the LNB controller driven by the already existing lnb
functionality, so here's where this code belongs to.

Picked up from the upstream dddvb-0.9.33 release.

Signed-off-by: Daniel Scheller <d.scheller@gmx.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-05-04 10:49:57 -04:00
Daniel Scheller
daeeb1319e media: ddbridge: initial support for MCI-based MaxSX8 cards
This adds initial support for the new MCI-based (micro-code interface)
DD cards, with the first one being the MaxSX8 eight-tuner DVB-S/S2/S2X
PCIe card. The MCI is basically a generalized interface implemented in
the card's FPGA firmware and usable for all kind of cards, without the
need to implement any demod/tuner drivers as this interface "hides" any
I2C interface to the actual ICs, in other words any required driver is
implemented in the card firmware.

At this stage, the MCI interface is quite rudimentary with things like
signal statistics reporting missing, but is already working to serve
DVB streams to DVB applications. Missing functionality will be enabled
over time.

This implements only the ddbridge-mci sub-object and hooks it up to the
Makefile so the object gets build. The upcoming commits hook this module
into all other ddbridge parts where required, including device IDs etc.

Picked up from the upstream dddvb-0.9.33 release.

Signed-off-by: Daniel Scheller <d.scheller@gmx.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-05-04 10:49:20 -04:00
Daniel Scheller
ab12397f7c media: ddbridge: support dummy tuners with 125MByte/s dummy data stream
The Octopus V3 and Octopus Mini devices support set up of a dummy tuner
mode on port 0 that will deliver a continuous data stream of 125MBytes
per second while raising IRQs and filling the DMA buffers, which comes
handy for some stress, PCIe link and IRQ handling testing. The dummy
frontend is registered using dvb_dummy_fe's QAM dummy frontend. Set
ddbridge.dummy_tuner to 1 to enable this on the supported cards.

Picked up from the upstream dddvb-0.9.33 release.

Signed-off-by: Daniel Scheller <d.scheller@gmx.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-05-04 10:43:48 -04:00
Daniel Scheller
0a68fc44d8 media: ddbridge: make DMA buffer count and size modparam-configurable
Make the number of DMA buffers and their size configurable using module
parameters. Being able to set these to a higher number might help on
busy systems when handling overall high data rates without having to
edit the driver sources and recompile things.

Picked up from the upstream dddvb-0.9.33 release.

Signed-off-by: Daniel Scheller <d.scheller@gmx.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-05-04 10:41:17 -04:00
Daniel Scheller
60586360f1 media: ddbridge: set devid entry for link 0
Currently, /sys/class/ddbridgeX/devid always reports 0 due to devid not
being set at all. Set the devid field alongside while storing all other
hardware ID data.

Picked up from the upstream dddvb-0.9.33 release.

Signed-off-by: Daniel Scheller <d.scheller@gmx.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-05-04 10:40:30 -04:00
Daniel Scheller
28473a197a media: ddbridge: fix output buffer check
A 188 byte gap has to be left between the writer and the consumer. This
requires 2*188 bytes available to be able to write to the output buffers.
So, change ddb_output_free() to report free bytes according to this rule.

Picked up from the upstream dddvb-0.9.33 release.

Signed-off-by: Daniel Scheller <d.scheller@gmx.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-05-04 10:39:59 -04:00
Daniel Scheller
e415eec458 media: ddbridge: use spin_lock_irqsave() in output_work()
Make sure to save IRQ states before taking the dma lock, as already done
in it's input_work() counterpart.

Picked up from the upstream dddvb-0.9.33 release.

Signed-off-by: Daniel Scheller <d.scheller@gmx.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-05-04 10:39:30 -04:00
Daniel Scheller
285d490c31 media: ddbridge: improve separated MSI IRQ handling
Improve IRQ handling in the separated MSG/I2C and IO/TSDATA handlers by
applying a mask for recognized bits immediately upon reading the IRQ mask
from the hardware, so only the bits/IRQs that actually were set will be
acked.

Picked up from the upstream dddvb-0.9.33 release.

Signed-off-by: Daniel Scheller <d.scheller@gmx.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-05-04 10:38:57 -04:00