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Author SHA1 Message Date
Allen Pais
1021dd010d media: Convert from tasklet to BH workqueue 
The only generic interface to execute asynchronously in the BH context is
tasklet; however, it's marked deprecated and has some design flaws. To
replace tasklets, BH workqueue support was recently added. A BH workqueue
behaves similarly to regular workqueues except that the queued work items
are executed in the BH context.

This patch converts drivers/media/* from tasklet to BH workqueue.

Based on the work done by Tejun Heo <tj@kernel.org>

Signed-off-by: Allen Pais <allen.lkml@gmail.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
 2024-06-21 08:57:09 +02:00
Jeff Johnson
29abda17fc media: pci: add missing MODULE_DESCRIPTION() macros 
With ARCH=x86, make allmodconfig && make W=1 C=1 reports:
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/media/pci/ttpci/budget-core.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/media/pci/bt8xx/bt878.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/media/pci/ivtv/ivtvfb.o

Add the missing invocations of the MODULE_DESCRIPTION() macro.

Signed-off-by: Jeff Johnson <quic_jjohnson@quicinc.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
 2024-06-15 10:49:20 +02:00
Stefan Herdler
c3224f4147 media: ttpci: coding style fixes: logging 
This patch fixes the following checkpatch warnings:

WARNING:PRINTK_WITHOUT_KERN_LEVEL: printk() should include KERN_<LEVEL> facility level
WARNING:PREFER_PR_LEVEL: Prefer [subsystem eg: netdev]_dbg([subsystem]dev, ... then dev_dbg(dev, ... then pr_debug(...  to printk(KERN_DEBUG ...
WARNING:EMBEDDED_FUNCTION_NAME: Prefer using '"%s...", __func__' to using 'ciintf_slot_ts_enable', this function's name, in a string
CHECK:MACRO_ARG_PRECEDENCE: Macro argument 'level' may be better as '(level)' to avoid precedence issues

There was no consistent style of logging functions used so far.
Convert all logging to the appropriate pr_* macros.
Add a global pr_fmt macro for the whole driver.

Signed-off-by: Stefan Herdler <herdler@nurfuerspam.de>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
 2024-04-16 00:02:53 +02:00
Stefan Herdler
22a8f8c216 media: ttpci: coding style fixes: constant_comparsation 
This patch fixes the following checkpatch warnings:

WARNING:CONSTANT_COMPARISON: Comparisons should place the constant on the right side of the test

Signed-off-by: Stefan Herdler <herdler@nurfuerspam.de>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
 2024-04-16 00:02:53 +02:00
Stefan Herdler
23aebcf131 media: ttpci: coding style fixes: assign_in_if 
This patch fixes the following checkpatch errors:

ERROR:ASSIGN_IN_IF: do not use assignment in if condition

Signed-off-by: Stefan Herdler <herdler@nurfuerspam.de>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
 2024-04-16 00:02:53 +02:00
Stefan Herdler
f126e8a44a media: ttpci: coding style fixes: export_symbol 
This patch fixes the following checkpatch warnings:

WARNING:EXPORT_SYMBOL: EXPORT_SYMBOL(foo); should immediately follow its function/variable

Signed-off-by: Stefan Herdler <herdler@nurfuerspam.de>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
 2024-04-16 00:02:53 +02:00
Stefan Herdler
004e24f9f2 media: ttpci: coding style fixes: comments 
This patch fixes the following checkpatch warnings:

WARNING:BLOCK_COMMENT_STYLE: Block comments use * on subsequent lines
WARNING:BLOCK_COMMENT_STYLE: Block comments use a trailing */ on a separate line
WARNING: It's generally not useful to have the filename in the file

Signed-off-by: Stefan Herdler <herdler@nurfuerspam.de>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
 2024-04-16 00:02:53 +02:00
Stefan Herdler
a5bc649b1e media: ttpci: coding style fixes: whitespace and newlines 
This patch fixes the following checkpatch warnings and errors:

ERROR:POINTER_LOCATION: "foo * bar" should be "foo *bar"
ERROR:POINTER_LOCATION: "foo* bar" should be "foo *bar"
ERROR:SPACING: space prohibited after that open parenthesis '('
ERROR:SPACING: space prohibited before that close parenthesis ')'
ERROR:SPACING: space prohibited before that ',' (ctx:WxW)
ERROR:SPACING: space required after that ',' (ctx:VxV)
ERROR:SPACING: space required before that '-' (ctx:OxV)
ERROR:SPACING: space required before the open parenthesis '('
ERROR:SPACING: spaces required around that '!=' (ctx:VxO)
ERROR:SPACING: spaces required around that '<' (ctx:VxV)
ERROR:SPACING: spaces required around that '=' (ctx:VxV)
ERROR:SPACING: spaces required around that '>=' (ctx:VxV)
WARNING:SPACING: space prohibited between function name and open parenthesis '('
WARNING:TABSTOP: Statements should start on a tabstop
WARNING:LEADING_SPACE: please, no spaces at the start of a line
WARNING:SUSPECT_CODE_INDENT: suspect code indent for conditional statements
WARNING:LINE_SPACING: Missing a blank line after declarations

Signed-off-by: Stefan Herdler <herdler@nurfuerspam.de>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
 2024-04-16 00:02:52 +02:00
Yu Zhe
778f247fae media: ttpci: remove unnecessary (void*) conversions 
Pointer variables of void * type do not require type cast.

Signed-off-by: Yu Zhe <yuzhe@nfschina.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
 2023-07-19 12:57:47 +02:00
Su Hui
17ae813654 media: pci: remove unnecessary (void*) conversions 
No need cast (void*) to (struct dst_state *),
(struct cx18_stream *), (struct saa7164_port *)
or (struct budget *).

Signed-off-by: Su Hui <suhui@nfschina.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
 2023-05-25 16:21:20 +02:00
Hans Verkuil
39d08ab979 media: Revert "media: saa7146: deprecate hexium_gemini/orion, mxb and ttpci" 
This reverts commit e33fdb5a02.

The saa7146-based devices are still in use, esp. for DVB. So move
these drivers back to mainline.

Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
 2023-02-09 09:22:36 +01:00
Hans Verkuil
e33fdb5a02 media: saa7146: deprecate hexium_gemini/orion, mxb and ttpci 
Deprecate the hexium_gemini, hexium_orion, mxb and ttpci saa7146-based
drivers: these drivers do not use the vb2 framework for video streaming,
instead it uses the old videobuf framework.

We want to get rid of these old drivers, so deprecated these for future
removal.

[hverkuil: update MAINTAINERS file]

Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
 2022-08-29 16:46:38 +02:00
Christophe JAILLET
f9c2fd3bb8 media: ttpci: switch from 'pci_' to 'dma_' API 
The wrappers in include/linux/pci-dma-compat.h should go away.

The patch has been generated with the coccinelle script below and has been
hand modified to replace GFP_ with a correct flag.
It has been compile tested.

When memory is allocated in 'ace_allocate_descriptors()' and
'ace_init()' GFP_KERNEL can be used because both functions are called from
the probe function and no lock is acquired.

@@
@@
-    PCI_DMA_BIDIRECTIONAL
+    DMA_BIDIRECTIONAL

@@
@@
-    PCI_DMA_TODEVICE
+    DMA_TO_DEVICE

@@
@@
-    PCI_DMA_FROMDEVICE
+    DMA_FROM_DEVICE

@@
@@
-    PCI_DMA_NONE
+    DMA_NONE

@@
expression e1, e2, e3;
@@
-    pci_alloc_consistent(e1, e2, e3)
+    dma_alloc_coherent(&e1->dev, e2, e3, GFP_)

@@
expression e1, e2, e3;
@@
-    pci_zalloc_consistent(e1, e2, e3)
+    dma_alloc_coherent(&e1->dev, e2, e3, GFP_)

@@
expression e1, e2, e3, e4;
@@
-    pci_free_consistent(e1, e2, e3, e4)
+    dma_free_coherent(&e1->dev, e2, e3, e4)

@@
expression e1, e2, e3, e4;
@@
-    pci_map_single(e1, e2, e3, e4)
+    dma_map_single(&e1->dev, e2, e3, e4)

@@
expression e1, e2, e3, e4;
@@
-    pci_unmap_single(e1, e2, e3, e4)
+    dma_unmap_single(&e1->dev, e2, e3, e4)

@@
expression e1, e2, e3, e4, e5;
@@
-    pci_map_page(e1, e2, e3, e4, e5)
+    dma_map_page(&e1->dev, e2, e3, e4, e5)

@@
expression e1, e2, e3, e4;
@@
-    pci_unmap_page(e1, e2, e3, e4)
+    dma_unmap_page(&e1->dev, e2, e3, e4)

@@
expression e1, e2, e3, e4;
@@
-    pci_map_sg(e1, e2, e3, e4)
+    dma_map_sg(&e1->dev, e2, e3, e4)

@@
expression e1, e2, e3, e4;
@@
-    pci_unmap_sg(e1, e2, e3, e4)
+    dma_unmap_sg(&e1->dev, e2, e3, e4)

@@
expression e1, e2, e3, e4;
@@
-    pci_dma_sync_single_for_cpu(e1, e2, e3, e4)
+    dma_sync_single_for_cpu(&e1->dev, e2, e3, e4)

@@
expression e1, e2, e3, e4;
@@
-    pci_dma_sync_single_for_device(e1, e2, e3, e4)
+    dma_sync_single_for_device(&e1->dev, e2, e3, e4)

@@
expression e1, e2, e3, e4;
@@
-    pci_dma_sync_sg_for_cpu(e1, e2, e3, e4)
+    dma_sync_sg_for_cpu(&e1->dev, e2, e3, e4)

@@
expression e1, e2, e3, e4;
@@
-    pci_dma_sync_sg_for_device(e1, e2, e3, e4)
+    dma_sync_sg_for_device(&e1->dev, e2, e3, e4)

@@
expression e1, e2;
@@
-    pci_dma_mapping_error(e1, e2)
+    dma_mapping_error(&e1->dev, e2)

@@
expression e1, e2;
@@
-    pci_set_dma_mask(e1, e2)
+    dma_set_mask(&e1->dev, e2)

@@
expression e1, e2;
@@
-    pci_set_consistent_dma_mask(e1, e2)
+    dma_set_coherent_mask(&e1->dev, e2)

Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
 2021-06-02 13:16:55 +02:00
Allen Pais
32e36ef692 media: ttpci: convert tasklets to use new tasklet_setup() API 
In preparation for unconditionally passing the
struct tasklet_struct pointer to all tasklet
callbacks, switch to using the new tasklet_setup()
and from_tasklet() to pass the tasklet pointer explicitly.

Signed-off-by: Romain Perier <romain.perier@gmail.com>
Signed-off-by: Allen Pais <allen.lkml@gmail.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
 2020-08-29 08:12:30 +02:00
Chuhong Yuan
fc0456458d media: budget-core: Improve exception handling in budget_register() 
budget_register() has no error handling after its failure.
Add the missed undo functions for error handling to fix it.

Signed-off-by: Chuhong Yuan <hslester96@gmail.com>
Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
 2020-06-23 15:10:00 +02:00
Thomas Gleixner
a0c7056fda treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 113 
Based on 1 normalized pattern(s):

  this program is free software you can redistribute it and or modify
  it under the terms of the gnu general public license as published by
  the free software foundation either version 2 of the license or at
  your option any later version this program is distributed in the
  hope that it will be useful but without any warranty without even
  the implied warranty of merchantability or fitness for a particular
  purpose see the gnu general public license for more details to
  obtain the license point your browser to http www gnu org copyleft
  gpl html

extracted by the scancode license scanner the SPDX license identifier

  GPL-2.0-or-later

has been chosen to replace the boilerplate/reference in 26 file(s).

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
Reviewed-by: Richard Fontana <rfontana@redhat.com>
Reviewed-by: Allison Randal <allison@lohutok.net>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190523091650.572604764@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 2019-05-24 17:39:01 +02:00
Mauro Carvalho Chehab
cc1e6315e8 media: replace strcpy() by strscpy() 
The strcpy() function is being deprecated upstream. Replace
it by the safer strscpy().

Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Reviewed-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
 2018-09-11 13:32:17 -04:00
Mauro Carvalho Chehab
c0decac19d media: use strscpy() instead of strlcpy() 
The implementation of strscpy() is more robust and safer.

That's now the recommended way to copy NUL terminated strings.

Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Reviewed-by: Kees Cook <keescook@chromium.org>
Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
 2018-09-11 13:32:17 -04:00
Mauro Carvalho Chehab
2c53275c1e media: dvb_demux: dvb_demux_feed.pusi_seen is boolean 
Instead of using an integer to represent it, use boolean,
as this better describes what this field really means.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
 2017-10-11 13:10:59 -04:00
Sakari Ailus
bcb63314e2 [media] media: Drop FSF's postal address from the source code files 
Drop the FSF's postal address from the source code files that typically
contain mostly the license text. Of the 628 removed instances, 578 are
outdated.

The patch has been created with the following command without manual edits:

git grep -l "675 Mass Ave\|59 Temple Place\|51 Franklin St" -- \
	drivers/media/ include/media|while read i; do i=$i perl -e '
open(F,"< $ENV{i}");
$a=join("", <F>);
$a =~ s/[ \t]*\*\n.*You should.*\n.*along with.*\n.*(\n.*USA.*$)?\n//m
	&& $a =~ s/(^.*)Or, (point your browser to) /$1To obtain the license, $2\n$1/m;
close(F);
open(F, "> $ENV{i}");
print F $a;
close(F);'; done

Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
 2017-01-27 11:38:09 -02:00
Mauro Carvalho Chehab
991ce92f8d [media] use https://linuxtv.org for LinuxTV URLs 
While https was always supported on linuxtv.org, only in
Dec 3 2015 the website is using valid certificates.

As we're planning to drop pure http support on some
future, change all references at the media subsystem
to point to the https URL instead.

Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
 2015-12-04 10:38:59 -02:00
Mauro Carvalho Chehab
0df289a209 [media] dvb: Get rid of typedev usage for enums 
The DVB API was originally defined using typedefs. This is against
Kernel CodingStyle, and there's no good usage here. While we can't
remove its usage on userspace, we can avoid its usage in Kernelspace.

So, let's do it.

This patch was generated by this shell script:

	for j in $(grep typedef include/uapi/linux/dvb/frontend.h |cut -d' ' -f 3); do for i in $(find drivers/media -name '*.[ch]' -type f) $(find drivers/staging/media -name '*.[ch]' -type f); do sed "s,${j}_t,enum $j," <$i >a && mv a $i; done; done

While here, make CodingStyle fixes on the affected lines.

Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Acked-by: Stefan Richter <stefanr@s5r6.in-berlin.de> # for drivers/media/firewire/*
 2015-06-09 17:47:35 -03:00
Hans Verkuil
65adb86d61 [media] budget-core: fix sparse warnings 
Fixes these sparse warnings.

drivers/media/pci/ttpci/budget-core.c:250:17: warning: context imbalance in 'ttpci_budget_debiread' - different lock contexts for basic block
drivers/media/pci/ttpci/budget-core.c:289:17: warning: context imbalance in 'ttpci_budget_debiwrite' - different lock contexts for basic block

To be honest, the new code does look better than the old.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
 2014-12-23 10:40:01 -02:00
Mauro Carvalho Chehab
25aee3debe [media] Rename media/dvb as media/pci 
The remaining dvb drivers are pci, so rename them to match the
bus.

Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
 2012-08-13 23:30:06 -03:00
Renamed from drivers/media/dvb/ttpci/budget-core.c (Browse further)