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path: root/drivers/media/pci/cx23885/cx23888-ir.c
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2020-09-03media: rc: harmonize infrared durations to microsecondsSean Young
rc-core kapi uses nanoseconds for infrared durations for receiving, and microseconds for sending. The uapi already uses microseconds for both, so this patch does not change the uapi. Infrared durations do not need nanosecond resolution. IR protocols do not have durations shorter than about 100 microseconds. Some IR hardware offers 250 microseconds resolution, which is sufficient for most protocols. Better hardware has 50 microsecond resolution and is enough for every protocol I am aware off. Unify on microseconds everywhere. This simplifies the code since less conversion between microseconds and nanoseconds needs to be done. This affects: - rx_resolution member of struct rc_dev - timeout member of struct rc_dev - duration member in struct ir_raw_event Cc: "Bruno Prémont" <bonbons@linux-vserver.org> Cc: Hans Verkuil <hverkuil-cisco@xs4all.nl> Cc: Maxim Levitsky <maximlevitsky@gmail.com> Cc: Patrick Lerda <patrick9876@free.fr> Cc: Kevin Hilman <khilman@baylibre.com> Cc: Neil Armstrong <narmstrong@baylibre.com> Cc: Jerome Brunet <jbrunet@baylibre.com> Cc: Martin Blumenstingl <martin.blumenstingl@googlemail.com> Cc: Sean Wang <sean.wang@mediatek.com> Cc: Matthias Brugger <matthias.bgg@gmail.com> Cc: Patrice Chotard <patrice.chotard@st.com> Cc: Maxime Ripard <mripard@kernel.org> Cc: Chen-Yu Tsai <wens@csie.org> Cc: "David Härdeman" <david@hardeman.nu> Cc: Benjamin Valentin <benpicco@googlemail.com> Cc: Antti Palosaari <crope@iki.fi> Signed-off-by: Sean Young <sean@mess.org> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-07-04media: cx23888: remove unused functionsSean Young
Found with clang: drivers/media/pci/cx23885/cx23888-ir.c:178:19: warning: unused function 'ns_to_clock_divider' [-Wunused-function] static inline u16 ns_to_clock_divider(unsigned int ns) ^ drivers/media/pci/cx23885/cx23888-ir.c:184:28: warning: unused function 'clock_divider_to_ns' [-Wunused-function] static inline unsigned int clock_divider_to_ns(unsigned int divider) ^ drivers/media/pci/cx23885/cx23888-ir.c:202:19: warning: unused function 'freq_to_clock_divider' [-Wunused-function] static inline u16 freq_to_clock_divider(unsigned int freq, ^ Cc: Andy Walls <awalls@md.metrocast.net> Signed-off-by: Sean Young <sean@mess.org> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2019-10-07media: rc: prevent memory leak in cx23888_ir_probeNavid Emamdoost
In cx23888_ir_probe if kfifo_alloc fails the allocated memory for state should be released. Signed-off-by: Navid Emamdoost <navid.emamdoost@gmail.com> Signed-off-by: Sean Young <sean@mess.org> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2019-05-30treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 157Thomas Gleixner
Based on 3 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 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 [author] [kishon] [vijay] [abraham] [i] [kishon]@[ti] [com] 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 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 [author] [graeme] [gregory] [gg]@[slimlogic] [co] [uk] [author] [kishon] [vijay] [abraham] [i] [kishon]@[ti] [com] [based] [on] [twl6030]_[usb] [c] [author] [hema] [hk] [hemahk]@[ti] [com] 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 extracted by the scancode license scanner the SPDX license identifier GPL-2.0-or-later has been chosen to replace the boilerplate/reference in 1105 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Allison Randal <allison@lohutok.net> Reviewed-by: Richard Fontana <rfontana@redhat.com> Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190527070033.202006027@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-03-01media: pci: fix several typosMauro Carvalho Chehab
Use codespell to fix lots of typos over frontends. Manually verified to avoid false-positives. Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-10-04media: rc: Remove init_ir_raw_event and DEFINE_IR_RAW_EVENT macrosSean Young
This can be done with c99 initializers, which makes the code cleaner and more transparent. It does require gcc 4.6, because of this bug in earlier versions: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=10676 Since commit cafa0010cd51 ("Raise the minimum required gcc version to 4.6"), this is the case. Signed-off-by: Sean Young <sean@mess.org> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-01-04media: replace all <spaces><tab> occurrencesMauro Carvalho Chehab
There are a lot of places where sequences of space/tabs are found. Get rid of all spaces before tabs. Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2018-01-04media: fix usage of whitespaces and on indentationMauro Carvalho Chehab
On several places, whitespaces are being used for indentation, or even at the end of the line. Fix them. Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-11-18[media] cx23885: convert it to use pr_foo() macrosMauro Carvalho Chehab
Instead of calling printk() directly, use pr_foo() macros, as suggested at the Kernel's coding style. Please notice that a conversion to dev_foo() is not trivial, as several parts on this driver uses pr_cont(). Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-10-21[media] cx23885: don't break long linesMauro Carvalho Chehab
Due to the 80-cols restrictions, and latter due to checkpatch warnings, several strings were broken into multiple lines. This is not considered a good practice anymore, as it makes harder to grep for strings at the source code. As we're right now fixing other drivers due to KERN_CONT, we need to be able to identify what printk strings don't end with a "\n". It is a way easier to detect those if we don't break long lines. So, join those continuation lines. The patch was generated via the script below, and manually adjusted if needed. </script> use Text::Tabs; while (<>) { if ($next ne "") { $c=$_; if ($c =~ /^\s+\"(.*)/) { $c2=$1; $next =~ s/\"\n$//; $n = expand($next); $funpos = index($n, '('); $pos = index($c2, '",'); if ($funpos && $pos > 0) { $s1 = substr $c2, 0, $pos + 2; $s2 = ' ' x ($funpos + 1) . substr $c2, $pos + 2; $s2 =~ s/^\s+//; $s2 = ' ' x ($funpos + 1) . $s2 if ($s2 ne ""); print unexpand("$next$s1\n"); print unexpand("$s2\n") if ($s2 ne ""); } else { print "$next$c2\n"; } $next=""; next; } else { print $next; } $next=""; } else { if (m/\"$/) { if (!m/\\n\"$/) { $next=$_; next; } } } print $_; } </script> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2014-09-03[media] cx23885: remove FSF address as per checkpatchHans Verkuil
These addresses are usually out-of-date and the top-level license will always have the right address. So drop it from these sources. Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2014-08-21[media] cx23885: Spelling s/compuations/computations/Geert Uytterhoeven
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2013-06-17[media] cx23885: remove g_chip_identHans Verkuil
Replace g_chip_ident by g_chip_info. Note that the IR support is implemented as a subdev, so this part no longer needs to be handled as a 'bridge' chip. Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-05-27[media] media: pci: remove duplicate checks for EPERMLad, Prabhakar
This patch removes check for EPERM in dbg_g/s_register and vidioc_g/s_register as this check is already performed by core. Signed-off-by: Lad, Prabhakar <prabhakar.csengg@gmail.com> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-03-24[media] v4l2: add const to argument of write-only s_register ioctlHans Verkuil
This ioctl is defined as IOW, so pass the argument as const. Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Acked-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Acked-by: Lad, Prabhakar <prabhakar.csengg@gmail.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2012-12-27[media] cx23885: Replace memcpy with struct assignmentEzequiel Garcia
This kind of memcpy() is error-prone. Its replacement with a struct assignment is prefered because it's type-safe and much easier to read. Found by coccinelle. Hand patched and reviewed. Tested by compilation only. A simplified version of the semantic match that finds this problem is as follows: (http://coccinelle.lip6.fr/) // <smpl> @@ identifier struct_name; struct struct_name to; struct struct_name from; expression E; @@ -memcpy(&(to), &(from), E); +to = from; // </smpl> Signed-off-by: Peter Senna Tschudin <peter.senna@gmail.com> Signed-off-by: Ezequiel Garcia <elezegarcia@gmail.com> Reviewed-by: Andy Walls <awalls@md.metrocast.net> Signed-off-by: Andy Walls <awalls@md.metrocast.net> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2012-10-27[media] cx23885: get rid of warning: no previous prototypeMauro Carvalho Chehab
drivers/media/pci/cx23885/altera-ci.c:266:5: warning: no previous prototype for 'altera_ci_op_cam' [-Wmissing-prototypes] drivers/media/pci/cx23885/altera-ci.c:301:5: warning: no previous prototype for 'altera_ci_read_attribute_mem' [-Wmissing-prototypes] drivers/media/pci/cx23885/altera-ci.c:307:5: warning: no previous prototype for 'altera_ci_write_attribute_mem' [-Wmissing-prototypes] drivers/media/pci/cx23885/altera-ci.c:313:5: warning: no previous prototype for 'altera_ci_read_cam_ctl' [-Wmissing-prototypes] drivers/media/pci/cx23885/altera-ci.c:319:5: warning: no previous prototype for 'altera_ci_write_cam_ctl' [-Wmissing-prototypes] drivers/media/pci/cx23885/altera-ci.c:325:5: warning: no previous prototype for 'altera_ci_slot_reset' [-Wmissing-prototypes] drivers/media/pci/cx23885/altera-ci.c:368:5: warning: no previous prototype for 'altera_ci_slot_shutdown' [-Wmissing-prototypes] drivers/media/pci/cx23885/altera-ci.c:374:5: warning: no previous prototype for 'altera_ci_slot_ts_ctl' [-Wmissing-prototypes] drivers/media/pci/cx23885/altera-ci.c:451:5: warning: no previous prototype for 'altera_poll_ci_slot_status' [-Wmissing-prototypes] drivers/media/pci/cx23885/altera-ci.c:462:6: warning: no previous prototype for 'altera_hw_filt_release' [-Wmissing-prototypes] drivers/media/pci/cx23885/altera-ci.c:584:5: warning: no previous prototype for 'altera_pid_feed_control' [-Wmissing-prototypes] drivers/media/pci/cx23885/altera-ci.c:606:5: warning: no previous prototype for 'altera_ci_start_feed' [-Wmissing-prototypes] drivers/media/pci/cx23885/altera-ci.c:613:5: warning: no previous prototype for 'altera_ci_stop_feed' [-Wmissing-prototypes] drivers/media/pci/cx23885/altera-ci.c:620:5: warning: no previous prototype for 'altera_ci_start_feed_1' [-Wmissing-prototypes] drivers/media/pci/cx23885/altera-ci.c:625:5: warning: no previous prototype for 'altera_ci_stop_feed_1' [-Wmissing-prototypes] drivers/media/pci/cx23885/altera-ci.c:630:5: warning: no previous prototype for 'altera_ci_start_feed_2' [-Wmissing-prototypes] drivers/media/pci/cx23885/altera-ci.c:635:5: warning: no previous prototype for 'altera_ci_stop_feed_2' [-Wmissing-prototypes] drivers/media/pci/cx23885/altera-ci.c:640:5: warning: no previous prototype for 'altera_hw_filt_init' [-Wmissing-prototypes] drivers/media/pci/cx23885/cimax2.c:123:5: warning: no previous prototype for 'netup_write_i2c' [-Wmissing-prototypes] drivers/media/pci/cx23885/cimax2.c:150:5: warning: no previous prototype for 'netup_ci_get_mem' [-Wmissing-prototypes] drivers/media/pci/cx23885/cimax2.c:169:5: warning: no previous prototype for 'netup_ci_op_cam' [-Wmissing-prototypes] drivers/media/pci/cx23885/cimax2.c:239:5: warning: no previous prototype for 'netup_ci_read_attribute_mem' [-Wmissing-prototypes] drivers/media/pci/cx23885/cimax2.c:245:5: warning: no previous prototype for 'netup_ci_write_attribute_mem' [-Wmissing-prototypes] drivers/media/pci/cx23885/cimax2.c:251:5: warning: no previous prototype for 'netup_ci_read_cam_ctl' [-Wmissing-prototypes] drivers/media/pci/cx23885/cimax2.c:257:5: warning: no previous prototype for 'netup_ci_write_cam_ctl' [-Wmissing-prototypes] drivers/media/pci/cx23885/cimax2.c:263:5: warning: no previous prototype for 'netup_ci_slot_reset' [-Wmissing-prototypes] drivers/media/pci/cx23885/cimax2.c:292:5: warning: no previous prototype for 'netup_ci_slot_shutdown' [-Wmissing-prototypes] drivers/media/pci/cx23885/cimax2.c:298:5: warning: no previous prototype for 'netup_ci_set_irq' [-Wmissing-prototypes] drivers/media/pci/cx23885/cimax2.c:319:5: warning: no previous prototype for 'netup_ci_slot_ts_ctl' [-Wmissing-prototypes] drivers/media/pci/cx23885/cimax2.c:375:5: warning: no previous prototype for 'netup_ci_slot_status' [-Wmissing-prototypes] drivers/media/pci/cx23885/cimax2.c:402:5: warning: no previous prototype for 'netup_poll_ci_slot_status' [-Wmissing-prototypes] drivers/media/pci/cx23885/cimax2.c:415:5: warning: no previous prototype for 'netup_ci_init' [-Wmissing-prototypes] drivers/media/pci/cx23885/cimax2.c:520:6: warning: no previous prototype for 'netup_ci_exit' [-Wmissing-prototypes] drivers/media/pci/cx23885/cimax2.c:90:5: warning: no previous prototype for 'netup_read_i2c' [-Wmissing-prototypes] drivers/media/pci/cx23885/cx23885-av.c:26:6: warning: no previous prototype for 'cx23885_av_work_handler' [-Wmissing-prototypes] drivers/media/pci/cx23885/cx23885-cards.c:1430:5: warning: no previous prototype for 'netup_jtag_io' [-Wmissing-prototypes] drivers/media/pci/cx23885/cx23885-core.c:306:6: warning: no previous prototype for 'cx23885_irq_add' [-Wmissing-prototypes] drivers/media/pci/cx23885/cx23885-dvb.c:662:5: warning: no previous prototype for 'netup_altera_fpga_rw' [-Wmissing-prototypes] drivers/media/pci/cx23885/cx23885-f300.c:150:5: warning: no previous prototype for 'f300_set_voltage' [-Wmissing-prototypes] drivers/media/pci/cx23885/cx23885-input.c:249:5: warning: no previous prototype for 'cx23885_input_init' [-Wmissing-prototypes] drivers/media/pci/cx23885/cx23885-input.c:353:6: warning: no previous prototype for 'cx23885_input_fini' [-Wmissing-prototypes] drivers/media/pci/cx23885/cx23885-input.c:76:6: warning: no previous prototype for 'cx23885_input_rx_work_handler' [-Wmissing-prototypes] drivers/media/pci/cx23885/cx23885-ioctl.c:134:5: warning: no previous prototype for 'cx23885_g_register' [-Wmissing-prototypes] drivers/media/pci/cx23885/cx23885-ioctl.c:185:5: warning: no previous prototype for 'cx23885_s_register' [-Wmissing-prototypes] drivers/media/pci/cx23885/cx23885-ioctl.c:27:5: warning: no previous prototype for 'cx23885_g_chip_ident' [-Wmissing-prototypes] drivers/media/pci/cx23885/cx23885-ir.c:101:6: warning: no previous prototype for 'cx23885_ir_tx_v4l2_dev_notify' [-Wmissing-prototypes] drivers/media/pci/cx23885/cx23885-ir.c:37:6: warning: no previous prototype for 'cx23885_ir_rx_work_handler' [-Wmissing-prototypes] drivers/media/pci/cx23885/cx23885-ir.c:60:6: warning: no previous prototype for 'cx23885_ir_tx_work_handler' [-Wmissing-prototypes] drivers/media/pci/cx23885/cx23885-ir.c:76:6: warning: no previous prototype for 'cx23885_ir_rx_v4l2_dev_notify' [-Wmissing-prototypes] drivers/media/pci/cx23885/cx23888-ir.c:1203:5: warning: no previous prototype for 'cx23888_ir_probe' [-Wmissing-prototypes] drivers/media/pci/cx23885/cx23888-ir.c:1253:5: warning: no previous prototype for 'cx23888_ir_remove' [-Wmissing-prototypes] drivers/media/pci/cx23885/netup-init.c:109:6: warning: no previous prototype for 'netup_initialize' [-Wmissing-prototypes] Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2012-08-15[media] rename most media/video pci drivers to media/pciMauro Carvalho Chehab
Rename all PCI drivers with their own directory under drivers/media/video into drivers/media/pci and update the building system. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>