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As usual, this patch is very large due to the fact that half a vb2 conversion
isn't possible. And since this affects 417, alsa, core, dvb, vbi and video the
changes are all over.
What made this more difficult was the peculiar way the risc program was setup.
The driver allowed for running out of buffers in which case the DMA would stop
and restart when the next buffer was queued. There was also a complicated
timeout system for when buffers weren't filled. This was replaced by a much
simpler scheme where there is always one buffer around and the DMA will just
cycle that buffer until a new buffer is queued. In that case the previous
buffer will be chained to the new buffer. An interrupt is generated at the
start of the new buffer telling the driver that the previous buffer can be
passed on to userspace.
Much simpler and more robust. The old code seems to be copied from the
cx88 driver. But it didn't fit the vb2 ops very well and replacing it with
the new scheme made the code easier to understand. Not to mention that this
patch removes 600 lines of code.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
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Replaced enum v4l2_field by u32, just as the prototype in the
header has.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
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Fix kbuild test robot warnings about missing vmalloc.h and string.h
includes.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
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I'm not sure how I missed this, but they should be removed.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
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Signed-off-by: Antonio Ospite <ao2@ao2.it>
Cc: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
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comment
Fix indentation of a comment, put it on the same level of the code it
refers to.
Signed-off-by: Antonio Ospite <ao2@ao2.it>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
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It is driver internal function and does not need anything from
frontend structure. Due to that change parameter type to driver
state which is better for driver internal functions.
Also remove one unused variable from state itself.
Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
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Use RegMap to cover I2C register routines.
Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
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There is no need to print module name nor function name as those
are done by kernel logging system when dev_xxx logging is used and
driver is proper I2C driver.
Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
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foo_dev seems to be most correct term for the structure holding data
of each device instance. It is most used term in Kernel and also
examples from book Linux Device Drivers, Third Edition, uses it.
Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
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Sparse is complaining about ngene's bad usage of a __user ptr:
>> drivers/media/pci/ngene/ngene-dvb.c:62:48: sparse: incorrect type in argument 2 (different address spaces)
drivers/media/pci/ngene/ngene-dvb.c:62:48: expected unsigned char const [usertype] *buf
drivers/media/pci/ngene/ngene-dvb.c:62:48: got char const [noderef] <asn:1>*buf
As this is intercepting a .write() file ops, we can't just memcpy. We need to use
copy_from_user.
Reported-by: kbuild test robot <fengguang.wu@intel.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
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drivers/media/pci/tw68/tw68-core.c:72:22: warning: symbol 'tw68_pci_tbl' was not declared. Should it be static?
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
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Refactor and clean up the tw68 driver. It's now using the proper
V4L2 core frameworks.
Tested with my Techwell tw6805a and tw6816 grabber boards.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
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This tw68 driver has been out-of-tree for many years on gitorious:
https://gitorious.org/tw68/tw68-v2.
This copies that code to the kernel as a record of that original code.
Note that William Brack's email address in these sources is no longer
valid and I have not been able to contact him. However, all the code is
standard GPL.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
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drivers/media/dvb-frontends/drxk_hard.c:2224:3-22: code aligned with following code on line 2227
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
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As reported by cocinelle:
drivers/media/dvb-frontends/drxd_hard.c:2632:3-51: code aligned with following code on line 2633
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
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As reported by cocinelle:
drivers/media/dvb-frontends/sp8870.c:395:2-14: code aligned with following code on line 397
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
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As reported by cocinelle:
drivers/media/tuners/tuner-xc2028.c:182:2-18: code aligned with following code on line 183
drivers/media/tuners/tuner-xc2028.c:184:2-19: code aligned with following code on line 185
drivers/media/tuners/tuner-xc2028.c:186:2-19: code aligned with following code on line 187
drivers/media/tuners/tuner-xc2028.c:188:2-17: code aligned with following code on line 189
drivers/media/tuners/tuner-xc2028.c:190:2-19: code aligned with following code on line 191
drivers/media/tuners/tuner-xc2028.c:192:2-19: code aligned with following code on line 193
drivers/media/tuners/tuner-xc2028.c:194:2-18: code aligned with following code on line 195
drivers/media/tuners/tuner-xc2028.c:196:2-17: code aligned with following code on line 197
drivers/media/tuners/tuner-xc2028.c:198:2-18: code aligned with following code on line 199
drivers/media/tuners/tuner-xc2028.c:200:2-19: code aligned with following code on line 201
drivers/media/tuners/tuner-xc2028.c:202:2-18: code aligned with following code on line 203
drivers/media/tuners/tuner-xc2028.c:204:2-16: code aligned with following code on line 205
drivers/media/tuners/tuner-xc2028.c:206:2-20: code aligned with following code on line 207
drivers/media/tuners/tuner-xc2028.c:208:2-17: code aligned with following code on line 209
drivers/media/tuners/tuner-xc2028.c:210:2-18: code aligned with following code on line 211
drivers/media/tuners/tuner-xc2028.c:212:2-18: code aligned with following code on line 213
drivers/media/tuners/tuner-xc2028.c:214:2-18: code aligned with following code on line 215
drivers/media/tuners/tuner-xc2028.c:216:2-16: code aligned with following code on line 217
drivers/media/tuners/tuner-xc2028.c:218:2-18: code aligned with following code on line 219
drivers/media/tuners/tuner-xc2028.c:220:2-20: code aligned with following code on line 221
drivers/media/tuners/tuner-xc2028.c:222:2-21: code aligned with following code on line 223
drivers/media/tuners/tuner-xc2028.c:224:2-20: code aligned with following code on line 225
drivers/media/tuners/tuner-xc2028.c:226:2-23: code aligned with following code on line 227
drivers/media/tuners/tuner-xc2028.c:228:2-23: code aligned with following code on line 229
drivers/media/tuners/tuner-xc2028.c:230:2-22: code aligned with following code on line 231
drivers/media/tuners/tuner-xc2028.c:232:2-24: code aligned with following code on line 233
drivers/media/tuners/tuner-xc2028.c:234:2-19: code aligned with following code on line 235
drivers/media/tuners/tuner-xc2028.c:236:2-19: code aligned with following code on line 237
drivers/media/tuners/tuner-xc2028.c:238:2-20: code aligned with following code on line 239
drivers/media/tuners/tuner-xc2028.c:240:2-19: code aligned with following code on line 241
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
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As reported by cocinelle:
drivers/media/tuners/xc4000.c:573:2-28: code aligned with following code on line 574
drivers/media/tuners/xc4000.c:575:2-29: code aligned with following code on line 576
drivers/media/tuners/xc4000.c:577:2-29: code aligned with following code on line 578
drivers/media/tuners/xc4000.c:579:2-27: code aligned with following code on line 580
drivers/media/tuners/xc4000.c:581:2-29: code aligned with following code on line 582
drivers/media/tuners/xc4000.c:583:2-29: code aligned with following code on line 584
drivers/media/tuners/xc4000.c:585:2-28: code aligned with following code on line 586
drivers/media/tuners/xc4000.c:587:2-27: code aligned with following code on line 588
drivers/media/tuners/xc4000.c:589:2-28: code aligned with following code on line 590
drivers/media/tuners/xc4000.c:591:2-29: code aligned with following code on line 592
drivers/media/tuners/xc4000.c:593:2-28: code aligned with following code on line 594
drivers/media/tuners/xc4000.c:595:2-26: code aligned with following code on line 596
drivers/media/tuners/xc4000.c:597:2-30: code aligned with following code on line 598
drivers/media/tuners/xc4000.c:599:2-27: code aligned with following code on line 600
drivers/media/tuners/xc4000.c:601:2-28: code aligned with following code on line 602
drivers/media/tuners/xc4000.c:603:2-28: code aligned with following code on line 604
drivers/media/tuners/xc4000.c:605:2-28: code aligned with following code on line 606
drivers/media/tuners/xc4000.c:607:2-26: code aligned with following code on line 608
drivers/media/tuners/xc4000.c:609:2-28: code aligned with following code on line 610
drivers/media/tuners/xc4000.c:611:2-30: code aligned with following code on line 612
drivers/media/tuners/xc4000.c:613:2-31: code aligned with following code on line 614
drivers/media/tuners/xc4000.c:615:2-30: code aligned with following code on line 616
drivers/media/tuners/xc4000.c:617:2-33: code aligned with following code on line 618
drivers/media/tuners/xc4000.c:619:2-33: code aligned with following code on line 620
drivers/media/tuners/xc4000.c:621:2-32: code aligned with following code on line 622
drivers/media/tuners/xc4000.c:623:2-34: code aligned with following code on line 624
drivers/media/tuners/xc4000.c:625:2-29: code aligned with following code on line 626
drivers/media/tuners/xc4000.c:627:2-29: code aligned with following code on line 628
drivers/media/tuners/xc4000.c:629:2-30: code aligned with following code on line 630
drivers/media/tuners/xc4000.c:631:2-29: code aligned with following code on line 632
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
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Instead of allocating a var to store 0 and just return it,
change the code to return 0 directly.
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
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Instead of allocating a var to store 0 and just return it,
change the code to return 0 directly.
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
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Instead of allocating a var to store 0 and just return it,
change the code to return 0 directly.
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
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Instead of allocating a var to store 0 and just return it,
change the code to return 0 directly.
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
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Instead of allocating a var to store 0 and just return it,
change the code to return 0 directly.
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
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Instead of allocating a var to store 0 and just return it,
change the code to return 0 directly.
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
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Instead of allocating a var to store 0 and just return it,
change the code to return 0 directly.
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
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Instead of allocating a var to store 0 and just return it,
change the code to return 0 directly.
Acked-by: "Lad, Prabhakar" <prabhakar.csengg@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
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Instead of allocating a var to store 0 and just return it,
change the code to return 0 directly.
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
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Instead of allocating a var to store 0 and just return it,
change the code to return 0 directly.
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
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Instead of allocating a var to store 0 and just return it,
change the code to return 0 directly.
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
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Instead of allocating a var to store 0 and just return it,
change the code to return 0 directly.
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
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Instead of allocating a var to store 0 and just return it,
change the code to return 0 directly.
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
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Make sure pm_runtime_* calls does not use unnecessary
IS_ERR_VALUE().
Reported by scripts/coccinelle/api/pm_runtime.cocci script.
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
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Instead of using if (foo == false), just use
if (!foo).
That allows a faster mental parsing when analyzing the
code.
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
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Instead of using if (foo == false), just use
if (!foo).
That allows a faster mental parsing when analyzing the
code.
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
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instead of testing bools if they are false or true, just use
if (!foo) or if (foo). That makes the code easier to
read and shorter.
Also, properly initialize booleans with true or false.
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
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lml33dpatch is boolean. So, the possible values are
true or false.
Instead of using if (lml33dpath), just use
if (!lml33dpath).
That allows a faster mental parsing when analyzing the
code.
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
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Instead of using if (on == true), just use
if (on).
That allows a faster mental parsing when analyzing the
code.
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
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instead of testing if it is false or true, just use
if (!foo) or if (foo). That makes the code easier to
read and shorter.
Also, properly initialize booleans with true or false.
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
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Instead of using if (foo == false), just use
if (!foo).
That allows a faster mental parsing when analyzing the
code.
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
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Instead of using 0 or 1 for boolean, use the true/false
defines.
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
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Instead of using 0 or 1 for boolean, use the true/false
defines.
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
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Instead of using 0 or 1 for boolean, use the true/false
defines.
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
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Instead of using 0 or 1 for boolean, use the true/false
defines.
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
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Instead of using 0 or 1 for boolean, use the true/false
defines.
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
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Instead of using 0 or 1 for boolean, use the true/false
defines.
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
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Instead of using 0 or 1 for boolean, use the true/false
defines.
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
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Instead of using 0 or 1 for boolean, use the true/false
defines.
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
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Instead of using 0 or 1 for boolean, use the true/false
defines.
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
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Instead of using 0 or 1 for boolean, use the true/false
defines.
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
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