Commit Graph

993 Commits

Author SHA1 Message Date
Antti Palosaari ce99efa53e V4L/DVB: af9013: output fw version as four digit long
Firmware version is four digit long. Print all four digits instead of
three digits used earlier.

Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2010-08-02 16:43:13 -03:00
Antti Palosaari 8af5e3813b V4L/DVB: af9013: af9013_read_status() refactoring
Function af9013_read_status() refactoring. Read lock bits in different
order to save count of register reads.

Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2010-08-02 16:43:12 -03:00
Antti Palosaari 737fabf051 V4L/DVB: af9013: program tuner before demodulator
Program tuner before demodulator in case of channel set. Earlier it was
programmed during demodulator programming. This seems to resolve weird
error where demodulator misses sometimes ability to gain lock.

Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2010-08-02 16:43:11 -03:00
Antti Palosaari 3b11f4e90d V4L/DVB: af9013: add support for firmware 5.1.0.0
Add support for new firmware version 5.1.0.0.

Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2010-08-02 16:43:09 -03:00
Andrew Morton febe2ea10e V4L/DVB: "dib3000mc: reduce large stack usage" fix
s/ENODEV/ENOMEM, per Andreas.

This fix got lost when someone merged "dib3000mc: reduce large stack
usage".  Please don't lose fixes.

Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2010-08-02 16:42:59 -03:00
Christoph Egger 9059cd4440 V4L/DVB: remove obsolete conditionalizing on DVB_DIBCOM_DEBUG
As pointed by Christoph Egger <siccegge@stud.informatik.uni-erlangen.de>,

The config Option DVB_DIBCOM_DEBUG was dropped while removing the dibusb
driver in favor of dvb-usb in 2005. However it remaind existant at some
places of the kernel config.

Instead of just removing the debug capability, the better is to just remove
the bad dependency, making the modprobe function always visible.

Thanks-to: Christoph Egger <siccegge@stud.informatik.uni-erlangen.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2010-08-02 16:42:46 -03:00
Ben Hutchings 7638699c25 V4L/DVB: lgs8gxx: remove firmware for lgs8g75
The recently added support for lgs8g75 included some 8051 machine code
without accompanying source code.  Replace this with use of the
firmware loader.

Compile-tested only.

Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2010-08-02 16:42:45 -03:00
Guillaume Audirac 82751f5679 V4L/DVB: tda10048: clear the uncorrected packet registers when saturated
Use the register CLUNC to reset the CPTU registers (LSB & MSB) when they
saturate at 0xFFFF. Fixes as well a few register typos.

Signed-off-by: Guillaume Audirac <guillaume.audirac@webag.fr>
Signed-off-by: Steven Toth <stoth@kernellabs.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2010-08-02 15:35:39 -03:00
Guillaume Audirac 10ea89d03f V4L/DVB: tda10048: fix bitmask for the transmission mode
Add a missing bit for reading the transmission mode (2K/8K) in
tda10048_get_tps

Signed-off-by: Guillaume Audirac <guillaume.audirac@webag.fr>
Signed-off-by: Steven Toth <stoth@kernellabs.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2010-08-02 15:35:26 -03:00
Guillaume Audirac 814522394c V4L/DVB: tda10048: fix the uncomplete function tda10048_read_ber
Completes the bit-error-rate read function with the CBER register (before
Viterbi decoder). The returned value is 1e8*actual_ber to be positive.
Also includes some typo mistakes.

Signed-off-by: Guillaume Audirac <guillaume.audirac@webag.fr>
Signed-off-by: Steven Toth <stoth@kernellabs.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2010-08-02 15:35:13 -03:00
Julia Lawall bd0db8c7ad V4L/DVB: drivers/media/dvb/frontends: remove duplicate structure field initialization
The read_status field is initialized twice to the same value.

The semantic match that finds this problem is as follows:
(http://coccinelle.lip6.fr/)

// <smpl>
@r@
identifier I, s, fld;
position p0,p;
expression E;
@@

struct I s =@p0 { ... .fld@p = E, ...};

@s@
identifier I, s, r.fld;
position r.p0,p;
expression E;
@@

struct I s =@p0 { ... .fld@p = E, ...};

@script:python@
p0 << r.p0;
fld << r.fld;
ps << s.p;
pr << r.p;
@@

if int(ps[0].line)<int(pr[0].line) or int(ps[0].column)<int(pr[0].column):
  cocci.print_main(fld,p0)
// </smpl>

Signed-off-by: Julia Lawall <julia@diku.dk>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2010-08-02 15:29:18 -03:00
Michael Krufky a5ba334cda V4L/DVB: lgdt3305: enable FE_HAS_SIGNAL hack for the lgdt3304 in QAM mode
The signal bit is unreliable on the DT3304 in QAM mode, so
set FE_HAS_SIGNAL based on 'cr_lock'

Signed-off-by: Michael Krufky <mkrufky@kernellabs.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2010-08-02 14:47:41 -03:00
Michael Krufky 40ff540f3e V4L/DVB: lgdt3305: update copyright date and MODULE_VERSION
Signed-off-by: Michael Krufky <mkrufky@kernellabs.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2010-08-02 14:47:19 -03:00
Michael Krufky 132631d07f V4L/DVB: lgdt3305: Jarod Wilson gets the credit for LGDT3304 support
Signed-off-by: Michael Krufky <mkrufky@kernellabs.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2010-08-02 14:47:07 -03:00
Michael Krufky 10952a716f V4L/DVB: lgdt3305: FIXME: verify & document the LGDT3304 registers
Signed-off-by: Michael Krufky <mkrufky@kernellabs.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2010-08-02 14:46:55 -03:00
Michael Krufky d99a211822 V4L/DVB: lgdt3305: consolidate init functions
Signed-off-by: Michael Krufky <mkrufky@kernellabs.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2010-08-02 14:46:42 -03:00
Michael Krufky 241b0f4111 V4L/DVB: lgdt3305: re-write lgdt3304 ifbw hack in lgdt3305_rfagc_loop with FIXME
Signed-off-by: Michael Krufky <mkrufky@kernellabs.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2010-08-02 14:46:29 -03:00
Michael Krufky 5de82faec8 V4L/DVB: lgdt3305: update lgdt3305.h header to match the header in lgdt3305.c
Signed-off-by: Michael Krufky <mkrufky@kernellabs.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2010-08-02 14:46:11 -03:00
Michael Krufky bf37d1354f V4L/DVB: lgdt3305: remove pointless function, lgdt3304_sleep
Signed-off-by: Michael Krufky <mkrufky@kernellabs.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2010-08-02 14:45:59 -03:00
Jarod Wilson 804258c95f V4L/DVB: dvb: add lgdt3304 support to lgdt3305 driver
There's a currently-unused lgdt3304 demod driver, which leaves a lot to
be desired as far as functionality. The 3304 is unsurprisingly quite
similar to the 3305, and empirical testing yeilds far better results
and more complete functionality by merging 3304 support into the 3305
driver. (For example, the current lgdt3304 driver lacks support for
signal strength, snr, ucblocks, etc., which we get w/the lgdt3305).

For the moment, not dropping the lgdt3304 driver, and its still up to
a given device's config setup to choose which demod driver to use, but
I'd suggest dropping the 3304 driver entirely.

As a follow-up to this patch, I've got another patch that adds support
for the KWorld PlusTV 340U (ATSC) em2870-based tuner stick, driving
its lgdt3304 demod via this lgdt3305 driver, which is what I used to
successfully test this patch with both VSB_8 and QAM_256 signals.

A few pieces are still a touch crude, but I think its a solid start,
as well as much cleaner and more feature-complete than the existing
lgdt3304 driver.

Signed-off-by: Jarod Wilson <jarod@redhat.com>
Signed-off-by: Michael Krufky <mkrufky@kernellabs.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2010-08-02 14:45:34 -03:00
Julia Lawall 2ef17c9fc8 V4L/DVB: drivers/media: Use kzalloc
Use kzalloc rather than the combination of kmalloc and memset.

The semantic patch that makes this change is as follows:
(http://coccinelle.lip6.fr/)

// <smpl>
@@
expression x,size,flags;
statement S;
@@

-x = kmalloc(size,flags);
+x = kzalloc(size,flags);
 if (x == NULL) S
-memset(x, 0, size);
// </smpl>

Signed-off-by: Julia Lawall <julia@diku.dk>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2010-06-01 01:23:16 -03:00
Guy Martin e65f8c4e3e V4L/DVB: stv6110x: Fix kernel null pointer deref
The following OOPS happened when plugging two TT s2-1600:

[   96.521023] saa7146: register extension 'budget dvb'.
[   96.521052] budget dvb 0000:05:00.0: PCI INT A -> GSI 16 (level, low) -> IRQ 16
[   96.521070] IRQ 16/: IRQF_DISABLED is not guaranteed on shared IRQs
[   96.521076] saa7146: found saa7146 @ mem ffffc90011182c00 (revision 1, irq 16) (0x13c2,0x101c).
[   96.521080] saa7146 (0): dma buffer size 192512
[   96.521081] DVB: registering new adapter (TT-Budget S2-1600 PCI)
[   96.539929] adapter has MAC addr = 00:d0:5c:cc:b0:a2
[   96.890149] stv6110x_attach: Attaching STV6110x
[   96.912516] DVB: registering adapter 0 frontend 0 (STV090x Multistandard)...
[   96.912600] budget dvb 0000:05:01.0: PCI INT A -> GSI 17 (level, low) -> IRQ 17
[   96.912639] IRQ 17/: IRQF_DISABLED is not guaranteed on shared IRQs
[   96.912667] saa7146: found saa7146 @ mem ffffc90011314800 (revision 1, irq 17) (0x13c2,0x101c).
[   96.912673] saa7146 (1): dma buffer size 192512
[   96.912676] DVB: registering new adapter (TT-Budget S2-1600 PCI)
[   96.930893] adapter has MAC addr = 00:d0:5c:cc:b0:a3
[   97.233478] BUG: unable to handle kernel NULL pointer dereference at 0000000000000010
[   97.233647] IP: [<ffffffffa029c450>] stv6110x_set_mode+0x70/0x80 [stv6110x]
[   97.233753] PGD 3c16f067 PUD 3c383067 PMD 0
[   97.234147] CPU 0
[   97.234246] Pid: 5200, comm: modprobe Not tainted 2.6.33.2 #1 P5QSE/P5Q SE
[   97.234317] RIP: 0010:[<ffffffffa029c450>]  [<ffffffffa029c450>] stv6110x_set_mode+0x70/0x80 [stv6110x]
[   97.234456] RSP: 0018:ffff88003c125c98  EFLAGS: 00010246
[   97.234461] RAX: ffffffffa029c460 RBX: ffff88003f84d800 RCX: ffff88003a19e140
[   97.234461] RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000
[   97.234461] RBP: ffff88003f84d828 R08: 0000000000000002 R09: 0000000000000004
[   97.234461] R10: 0000000000000003 R11: 0000000000000010 R12: ffff88003f84d800
[   97.234461] R13: ffff88003f84d828 R14: ffff88003f84d828 R15: 0000000000000001
[   97.234461] FS:  00007f9f7253e6f0(0000) GS:ffff880001800000(0000) knlGS:0000000000000000
[   97.234461] CS:  0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[   97.234461] CR2: 0000000000000010 CR3: 000000003c382000 CR4: 00000000000006b0
[   97.234461] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   97.234461] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
[   97.234461] Process modprobe (pid: 5200, threadinfo ffff88003c124000, task ffff88003e893ac0)
[   97.234461]  ffff88003f84d800 ffff88003f84d828 ffff88003f84d800 ffffffffa0292343
[   97.234461] <0> ffff88003f84d828 ffff88003ef70ae0 ffffffffa0280800 ffffffffa02934d2
[   97.234461] <0> ffffffffa0295260 0000000000000000 ffffffffa02948b0 ffff88003df79800
[   97.234461]  [<ffffffffa0292343>] ? stv090x_sleep+0x33/0x120 [stv090x]
[   97.234461]  [<ffffffffa02934d2>] ? stv090x_attach+0x1e2/0x73c [stv090x]
[   97.234461]  [<ffffffff81007cc5>] ? dma_generic_alloc_coherent+0xa5/0x160
[   97.234461]  [<ffffffffa026e1f5>] ? saa7146_init_one+0x7d5/0x910 [saa7146]
[   97.234461]  [<ffffffff811b84b2>] ? local_pci_probe+0x12/0x20
[   97.234461]  [<ffffffff811b87d0>] ? pci_device_probe+0x110/0x120
[   97.234461]  [<ffffffff81221788>] ? driver_probe_device+0x98/0x1b0
[   97.234461]  [<ffffffff81221933>] ? __driver_attach+0x93/0xa0
[   97.234461]  [<ffffffff812218a0>] ? __driver_attach+0x0/0xa0
[   97.234461]  [<ffffffff81220f18>] ? bus_for_each_dev+0x58/0x80
[   97.234461]  [<ffffffff8122079d>] ? bus_add_driver+0x14d/0x280
[   97.234461]  [<ffffffffa0284000>] ? budget_init+0x0/0xc [budget]
[   97.234461]  [<ffffffff81221c29>] ? driver_register+0x79/0x170
[   97.234461]  [<ffffffffa0284000>] ? budget_init+0x0/0xc [budget]
[   97.234461]  [<ffffffff811b8a48>] ? __pci_register_driver+0x58/0xe0
[   97.234461]  [<ffffffffa0284000>] ? budget_init+0x0/0xc [budget]
[   97.234461]  [<ffffffff810001d5>] ? do_one_initcall+0x35/0x190
[   97.234461]  [<ffffffff81063d37>] ? sys_init_module+0xe7/0x260
[   97.234461]  [<ffffffff8100256b>] ? system_call_fastpath+0x16/0x1b
[   97.234461] RIP  [<ffffffffa029c450>] stv6110x_set_mode+0x70/0x80 [stv6110x]
[   97.234461]  RSP <ffff88003c125c98>
[   97.240074] ---[ end trace b53ecbbbbef15e99 ]---

Prevents calling stv6110x_set_mode() if fe->tuner_priv is not defined,
in order to avoid the above bug.

Signed-off-by: Guy Martin <gmsoft@tuxicoman.be>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2010-06-01 01:21:50 -03:00
Hans Verkuil cf69b808ca V4L/DVB: au8522_decoder: g/s_fmt doesn't do anything: remove
g/s_fmt is going to disappear, so if it is not doing anything, then
just remove it.

Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2010-06-01 01:21:37 -03:00
Dan Carpenter 83b6601c88 V4L/DVB: dvb/stv6110x: cleanup error handling
The "stv6110x" is NULL so we can just return directly without calling
kfree().  Also I changed the printk() to make checkpatch.pl happy.

Signed-off-by: Dan Carpenter <error27@gmail.com>
Reviewed-by: Manu Abraham <manu@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2010-05-19 12:59:12 -03:00
Randy Dunlap 0de8e3533e V4L/DVB: dib3000mc: reduce large stack usage
This patch reduces static stack usage of one of the 2 top offenders
as listed by 'make checkstack':

Building with CONFIG_FRAME_WARN=2048 produces:

drivers/media/dvb/frontends/dib3000mc.c:853: warning: the frame size of 2224 bytes is larger than 2048 bytes

and in 'make checkstack', the stack usage goes from:
0x00000bbd dib3000mc_i2c_enumeration [dib3000mc]:	2232
to unlisted with this patch.

I don't have the hardware that is needed to test this patch.

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Acked-by: Patrick Boettcher <pboettcher@kernellabs.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2010-05-19 12:58:31 -03:00
Andrew Morton 0b42760a75 V4L/DVB: dib7000p: reduce large stack usage fix
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2010-05-19 12:58:31 -03:00
Randy Dunlap 30d81bb086 V4L/DVB: dib7000p: reduce large stack usage
This patch reduces static stack usage of one of the 2 top offenders
as listed by 'make checkstack':

Building with CONFIG_FRAME_WARN=2048 produces:

drivers/media/dvb/frontends/dib7000p.c:1367: warning: the frame size of 2320 bytes is larger than 2048 bytes

and in 'make checkstack', the stack usage goes from:
0x00002409 dib7000p_i2c_enumeration [dib7000p]:		2328
to unlisted with this patch.

Also change one caller of dib7000p_i2c_enumeration() to check its
return value.

I don't have the hardware that is needed to test this patch.

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2010-05-19 12:58:30 -03:00
Mauro Carvalho Chehab c683357236 Revert "V4L/DVB: Add FE_CAN_PSK_8 to allow apps to identify PSK_8 capable DVB devices"
Patch reverted per Andreas Oberritter <obi@linuxtv.org> request. It is basically
not ready yet for upstream merge.

This reverts commit 77b2ad374a82e3d740cb1780ff4caedc3e051b37.

Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2010-05-19 12:57:48 -03:00
Klaus Schmidinger b187913c77 V4L/DVB: Add FE_CAN_PSK_8 to allow apps to identify PSK_8 capable DVB devices
The enum fe_caps provides flags that allow an application to detect
whether a device is capable of handling various modulation types etc.
A flag for detecting PSK_8, however, is missing.
This patch adds the flag FE_CAN_PSK_8 to frontend.h and implements
it for the gp8psk-fe.c and cx24116.c driver (apparently the only ones
with PSK_8). Only the gp8psk-fe.c has been explicitly tested, though.

Signed-off-by: Klaus Schmidinger <Klaus.Schmidinger@tvdr.de>
Tested-by: Derek Kelly <user.vdr@gmail.com>
Acked-by: Manu Abraham <manu@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2010-05-19 12:57:47 -03:00
Nicolas Noirbent 450df22286 V4L/DVB: ds3000: fix divide-by-zero error in ds3000_read_snr()
Fix a divide-by-zero error in ds3000's ds3000_read_snr(), when getting
a very low signal reading (dvbs2_signal_reading >= 1). This prevents
some nasty EIPs when running szap-s2 with a very low signal strength.

Signed-off-by: Nicolas Noirbent <nicolas.noirbent@smartjog.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2010-05-19 12:57:15 -03:00
Wolfram Sang 2b0691cfc7 V4L/DVB: dvb/dib8000: fix build warning
In file included from drivers/media/dvb/dvb-usb/dib0700_devices.c:14:
  drivers/media/dvb/frontends/dib8000.h: In function 'dib8000_get_adc_power':
  drivers/media/dvb/frontends/dib8000.h:112: warning: no return statement in function returning non-void

Fixed by adding a return to the dummy function.

Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2010-05-19 12:57:11 -03:00
Mauro Carvalho Chehab a824375102 V4L/DVB: stv0900: Whitespace cleanup
Fixes sync with -hg tree

Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2010-05-18 00:50:20 -03:00
Mauro Carvalho Chehab 000f64efc7 V4L/DVB: Fix bad whitespacing
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2010-05-18 00:47:01 -03:00
Manu Abraham c8382c8e32 V4L/DVB: stv090x: Add some notes about the internal tuner I/O control
Signed-off-by: Manu Abraham <manu@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2010-05-18 00:46:51 -03:00
Andreas Regel 5817ea0c83 V4L/DVB: Budget/STV090x/STV6110x: Initialize the demodulator immediately after the tuner is attached
Signed-off-by: Andreas Regel <andreas.regel@gmx.de>
Signed-off-by: Manu Abraham <manu@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2010-05-18 00:46:49 -03:00
Manu Abraham 85532d1454 V4L/DVB: [STV090x] Use gate control, while tuner is being accessed
Signed-off-by: Manu Abraham <manu@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2010-05-18 00:46:48 -03:00
Manu Abraham c5b74b0f5e V4L/DVB: [STV090x, STV6110x] Use tuner sleep within the demodulator control
Oliver Endriss <o.endriss@gmx.de> pointed out:
Imho not a good idea, as the frontend thread calls
- fe->ops.tuner_ops.init
- fe->ops.tuner_ops.sleep

If you remove fe->ops.i2c_gate_ctrl, init and sleep will fail,
because gate_ctrl was never called...

--

Signed-off-by: Manu Abraham <manu@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2010-05-18 00:46:47 -03:00
Manu Abraham 19c4ee5832 V4L/DVB: [STV090x] Code simplification
- Remove a redundant exported gate control function

Signed-off-by: Manu Abraham <manu@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2010-05-18 00:46:47 -03:00
Abylay Ospan 403c34f6bb V4L/DVB: get_frontend for STV0900
Signed-off-by: Abylay Ospan <aospan@netup.ru>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2010-05-18 00:46:41 -03:00
Devin Heitmueller b628a2a3d4 V4L/DVB: au8522: fix case where we don't perform the first tune after going digital
Address a problem found in MythTV where if we are in digital mode, switch to
analog mode, and the switch back to digital mode, the first tuning request
after switching back to digital mode gets dropped.  This is because the au8522
maintains internal state, and would think the demod was already tuned to the
target frequency.

Thanks to Zaphod Beeblebrox for reporting this issue.

Signed-off-by: Devin Heitmueller <dheitmueller@kernellabs.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2010-05-18 00:46:22 -03:00
Devin Heitmueller 7f2c983cf5 V4L/DVB: au8522: fix race condition in switching from digital to analog mode
With applications like MythTV, switching inputs results in closing the digital
side and then immediately opening the analog side.  This exposes a race
condition where the dvb_frontend kernel thread powers down the chip and closes
the i2c gate even though we're in the middle of bringing up the analog part
of the chip (since the shutdown of the dvb_frontend kernel thread occurs
asychronously).

Introduce a construct to keep track of what mode we're in, and drop requests
to power down or management the gate if we've already switched to analog mode.

Thanks to Zaphod Beeblebrox for reporting this issue.

Signed-off-by: Devin Heitmueller <dheitmueller@kernellabs.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2010-05-18 00:46:21 -03:00
Oliver Endriss 5dd92c1ff1 V4L/DVB: ngene: Workaround for stuck DiSEqC pin
Send one DiSEqC byte to make sure that the pin is set to low level.

Signed-off-by: Oliver Endriss <o.endriss@gmx.de>
Reviewed-by: Manu Abraham <abraham.manu@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2010-05-06 19:20:51 -03:00
Tejun Heo 5a0e3ad6af include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h
percpu.h is included by sched.h and module.h and thus ends up being
included when building most .c files.  percpu.h includes slab.h which
in turn includes gfp.h making everything defined by the two files
universally available and complicating inclusion dependencies.

percpu.h -> slab.h dependency is about to be removed.  Prepare for
this change by updating users of gfp and slab facilities include those
headers directly instead of assuming availability.  As this conversion
needs to touch large number of source files, the following script is
used as the basis of conversion.

  http://userweb.kernel.org/~tj/misc/slabh-sweep.py

The script does the followings.

* Scan files for gfp and slab usages and update includes such that
  only the necessary includes are there.  ie. if only gfp is used,
  gfp.h, if slab is used, slab.h.

* When the script inserts a new include, it looks at the include
  blocks and try to put the new include such that its order conforms
  to its surrounding.  It's put in the include block which contains
  core kernel includes, in the same order that the rest are ordered -
  alphabetical, Christmas tree, rev-Xmas-tree or at the end if there
  doesn't seem to be any matching order.

* If the script can't find a place to put a new include (mostly
  because the file doesn't have fitting include block), it prints out
  an error message indicating which .h file needs to be added to the
  file.

The conversion was done in the following steps.

1. The initial automatic conversion of all .c files updated slightly
   over 4000 files, deleting around 700 includes and adding ~480 gfp.h
   and ~3000 slab.h inclusions.  The script emitted errors for ~400
   files.

2. Each error was manually checked.  Some didn't need the inclusion,
   some needed manual addition while adding it to implementation .h or
   embedding .c file was more appropriate for others.  This step added
   inclusions to around 150 files.

3. The script was run again and the output was compared to the edits
   from #2 to make sure no file was left behind.

4. Several build tests were done and a couple of problems were fixed.
   e.g. lib/decompress_*.c used malloc/free() wrappers around slab
   APIs requiring slab.h to be added manually.

5. The script was run on all .h files but without automatically
   editing them as sprinkling gfp.h and slab.h inclusions around .h
   files could easily lead to inclusion dependency hell.  Most gfp.h
   inclusion directives were ignored as stuff from gfp.h was usually
   wildly available and often used in preprocessor macros.  Each
   slab.h inclusion directive was examined and added manually as
   necessary.

6. percpu.h was updated not to include slab.h.

7. Build test were done on the following configurations and failures
   were fixed.  CONFIG_GCOV_KERNEL was turned off for all tests (as my
   distributed build env didn't work with gcov compiles) and a few
   more options had to be turned off depending on archs to make things
   build (like ipr on powerpc/64 which failed due to missing writeq).

   * x86 and x86_64 UP and SMP allmodconfig and a custom test config.
   * powerpc and powerpc64 SMP allmodconfig
   * sparc and sparc64 SMP allmodconfig
   * ia64 SMP allmodconfig
   * s390 SMP allmodconfig
   * alpha SMP allmodconfig
   * um on x86_64 SMP allmodconfig

8. percpu.h modifications were reverted so that it could be applied as
   a separate patch and serve as bisection point.

Given the fact that I had only a couple of failures from tests on step
6, I'm fairly confident about the coverage of this conversion patch.
If there is a breakage, it's likely to be something in one of the arch
headers which should be easily discoverable easily on most builds of
the specific arch.

Signed-off-by: Tejun Heo <tj@kernel.org>
Guess-its-ok-by: Christoph Lameter <cl@linux-foundation.org>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Lee Schermerhorn <Lee.Schermerhorn@hp.com>
2010-03-30 22:02:32 +09:00
Randy Dunlap 7ccf1eea97 V4L/DVB: dvb: fix sparse warnings
Fix sparse warnings in media/dvb/frontends:

drivers/media/dvb/frontends/dibx000_common.c:177:13: warning: non-ANSI function declaration of function 'systime'
drivers/media/dvb/frontends/tda665x.c:136:55: warning: right shift by bigger than source value

[mchehab@redhat.com: removed the change at dib0090 since it got fixed by a previous patch]
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2010-02-26 15:11:02 -03:00
Antti Palosaari 8ef4c21130 V4L/DVB: af901x: inform NXP TDA18218 tuner as know but not supported
There is no driver for new NXP TDA18218	tuner which is used by few recent
af9015 designs. af9015 uses number 179 as ID for that tuner. Inform this
tuner is not supported when device using that tuner is meet.

Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2010-02-26 15:10:58 -03:00
Julia Lawall 62bdbb735c V4L/DVB: drivers/media: Correct NULL test
In each case, the NULL test has been performed already.

A simplified version of the semantic match that finds this problem is as
follows: (http://coccinelle.lip6.fr/)

// <smpl>
@r@
expression *x;
expression e;
identifier l;
@@

if (x == NULL || ...) {
    ... when forall
    return ...; }
... when != goto l;
    when != x = e
    when != &x
*x == NULL
// </smpl>

Signed-off-by: Julia Lawall <julia@diku.dk>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2010-02-26 15:10:57 -03:00
Abylay Ospan fad93fdb14 V4L/DVB: STV0900 Cut 3.0 AGC2 fix for NetUP Dual DVB-S2-CI card
if the AGC2 > 1400 then no signal on this frequency for STV0900 Cut 3.0. For
Cut 2.0 this value is 700.

Signed-off-by: Abylay Ospan <aospan@netup.ru>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2010-02-26 15:10:56 -03:00
Andrew Morton 08c45cd585 V4L/DVB: drivers/media/dvb/frontends/stv090x.c: fix use-uninitlalised
Mad guess.

Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Reviewed-by: Manu Abraham <manu@linuxtv.org>
Acked-by: Manu Abraham <manu@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2010-02-26 15:10:51 -03:00
Andrew Morton 690c79ae7a V4L/DVB: drivers/media/dvb/frontends/stv090x.c: fix use-uninitialised
drivers/media/dvb/frontends/stv090x.c: In function 'stv090x_blind_search':
drivers/media/dvb/frontends/stv090x.c:1967: warning: 'coarse_fail' may be used uninitialized in this function

Cc: Manu Abraham <manu@linuxtv.org>
Cc: Mauro Carvalho Chehab <mchehab@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Reviewed-by: Manu Abraham <manu@linuxtv.org>
Acked-by: Manu Abraham <manu@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2010-02-26 15:10:51 -03:00
Roel Kluin fb3ab105a5 V4L/DVB: stv0900: dereference of state->internal in fe_stv0900_error stv0900_init_internal()
state->internal allocation may fail as well as the allocation of
stv0900_first_inode or new_node->next_inode in append_internal().

Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2010-02-26 15:10:50 -03:00