Commit graph

11935 commits

Author SHA1 Message Date
Joe Perches
d650fc30c0 [media] gl860: Use current logging styles
Add pr_fmt.
Convert err macro use to pr_err.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2011-09-03 21:12:17 -03:00
Joe Perches
857011e4d9 [media] et61x251: Use current logging styles
Add pr_fmt and convert printks to pr_<level>
Remove explicit prefixes from logging messages.
One of the prefixes was defective, a copy/paste error.
Use ##__VA_ARGS__ for variadic macros.
Whitespace neatening.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2011-09-03 21:11:59 -03:00
Joe Perches
8af443e581 [media] bt8xx: Use current logging styles
This converts some messages that were emitted at
KERN_INFO to KERN_DEBUG.  All of these messages
were guarded by bttv_debug tests.

Add pr_fmt.
Convert printks to pr_<level>
Convert printks without KERN_<level> to appropriate pr_<level>.
Removed embedded prefixes when pr_fmt was added.
Whitespace cleanups when around other conversions.
Macros coded with if statements should be do { if... } while (0)
so the macros can be used in other if tests.
Use ##__VA_ARGS__ for variadic macro as well.
Coalesce format strings.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2011-09-03 21:02:52 -03:00
Joe Perches
d8a10ac948 [media] winbond-cir: Use current logging styles
Add pr_fmt, convert printks to pr_<level>.

Signed-off-by: Joe Perches <joe@perches.com>
Acked-by: David Härdeman <david@hardeman.nu>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2011-09-03 20:58:05 -03:00
Joe Perches
7de3461c93 [media] ene_ir: Use current logging styles
Add pr_fmt.
Convert ene_warn and ene_notice to pr_<level>.
Use pr_debug in __dbg macro and a little neatening.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2011-09-03 20:57:09 -03:00
Joe Perches
44d0b80e5f [media] saa7146: Use current logging styles
Standardize the mechanisms to emit logging messages.

A few other modules used an #include from saa7146,
convert those at the same time.

Add pr_fmt.
Convert printks to pr_<level>
Convert printks without KERN_<level> to appropriate pr_<level>.
Convert logging macros requiring multiple parentheses to normal style.
Removed embedded prefixes when pr_fmt was added.
Whitespace cleanups when around other conversions.
Use printf extension %pM to print mac address.
Coalesce format strings.

Signed-off-by: Joe Perches <joe@perches.com>
Acked-by: Michael Hunold <michael@mihu.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2011-09-03 20:54:14 -03:00
Chris Rankin
0b8bd83cf3 [media] em28xx: don't sleep on disconnect
The DVB framework will try to power-down an adapter that no-one is using
any more, but this assumes that the adapter is still connected to the
machine. That's not always true for a USB adapter, so disable the sleep
operations when the adapter has been physically unplugged.

This prevents I2C write failures with error -19 from appearing
occasionally in the dmesg log.

Signed-off-by: Chris Rankin <rankincj@yahoo.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2011-09-03 20:50:22 -03:00
Chris Rankin
76424a0a50 [media] em28xx: move printk lines outside mutex lock
There's no reason to still be holding the device list mutex for either of these
printk statements.

Signed-off-by: Chris Rankin <rankincj@yahoo.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2011-09-03 20:50:11 -03:00
Chris Rankin
6c03e38b34 [media] em28xx: clean up resources should init fail
This patch ensures that the em28xx_init_dev() function cleans up after itself,
in the event that it fails. This isimportant because the struct em28xx will be
deallocated if em28xx_init_dev() returns an error.

[mchehab@redhat.com: Fix merge conflicts and simplify the goto labels]
Signed-off-by: Chris Rankin <rankincj@yahoo.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2011-09-03 20:50:00 -03:00
Chris Rankin
38b61eb2da [media] em28xx: use atomic bit operations for devices-in-use mask
Use atomic bit operations for the em28xx_devused mask, to prevent an
unlikely race condition should two adapters be plugged in
simultaneously. The operations also clearer than explicit bit
manipulation anyway.

Signed-off-by: Chris Rankin <rankincj@yahoo.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2011-09-03 20:49:51 -03:00
Chris Rankin
f38f333952 [media] em28xx: pass correct buffer size to snprintf
snprintf()'s size parameter includes space for the terminating '\0' character.

Signed-off-by: Chris Rankin <rankincj@yahoo.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2011-09-03 20:49:41 -03:00
Andreas Oberritter
674ce34333 [media] DVB: dvb_frontend: remove static assignments from dtv_property_cache_sync()
dtv_property_cache_init().
  dtv_property_process_get().
  overwritten with invalid values, leading to partially incorrect
  results when calling FE_GET_PROPERTY.

Signed-off-by: Andreas Oberritter <obi@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2011-09-03 19:06:58 -03:00
Arnaud Lacombe
3f5c14d3d3 [media] drivers/media: do not use EXTRA_CFLAGS
Usage of these flags has been deprecated for nearly 4 years by:

    commit f77bf01425
    Author: Sam Ravnborg <sam@neptun.(none)>
    Date:   Mon Oct 15 22:25:06 2007 +0200

        kbuild: introduce ccflags-y, asflags-y and ldflags-y

Moreover, these flags (at least EXTRA_CFLAGS) have been documented for command
line use. By default, gmake(1) do not override command line setting, so this is
likely to result in build failure or unexpected behavior.

Replace their usage by Kbuild's `{as,cc,ld}flags-y'.

Cc: Sam Ravnborg <sam@ravnborg.org>
Cc: Mauro Carvalho Chehab <mchehab@infradead.org>
Cc: linux-media@vger.kernel.org
Signed-off-by: Arnaud Lacombe <lacombar@gmail.com>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2011-09-03 18:50:59 -03:00
Chris Rankin
63f409a444 [media] Add missing OK key to PCTV IR keymap
Hi,

The following patch adds the IR code for the missing "OK" key to the Pinnacle
PCTV HD map. This map is now used by the PCTV 290e DVB-T2 device, whose remote
control has 26 buttons.

Signed-off-by: Chris Rankin <rankincj@yahoo.com>
Reviewed-by: Devin Heitmueller <dheitmueller@kernellabs.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2011-09-03 18:48:27 -03:00
Julia Lawall
0163b924c5 [media] drivers/media/video/zr364xx.c: add missing cleanup code
It seems just as necessary to free cam->vdev and cam in this error case as
in the next one.

Signed-off-by: Julia Lawall <julia@diku.dk>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2011-09-03 18:43:58 -03:00
Dan Carpenter
e9013fb6eb [media] ddbridge: fix ddb_ioctl()
There were a several problems in this function:

1) Potential integer overflow in the comparison:
	if (fio.write_len + fio.read_len > 1028) {

2) If the user gave bogus values for write_len and read_len then
   returning -EINVAL is more appropriate than returning -ENOMEM.

3) wbuf was set to the address of an array and could never be NULL
   so I removed the pointless NULL check.

4) The call to vfree(wbuf) was improper.  That array is part of a
   larger struct and isn't allocated by itself.

5) flashio() can't actually fail, but we may as well add error
   handling in case this changes later.

6) In the default case where an ioctl is not implemented then
   returning -ENOTTY is more appropriate than returning -EFAULT.

Signed-off-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2011-09-03 18:23:42 -03:00
Steve Kerrison
0db4bf42ba [media] CXD2820R: Replace i2c message translation with repeater gate control
This patch implements an i2c_gate_ctrl op for the cxd2820r. Thanks to Robert
Schlabbach for identifying the register address and field to set.

The old i2c intercept code that prefixed messages with a passthrough byte has
been removed and the PCTV nanoStick T2 290e entry in em28xx-dvb has been
updated appropriately.

Tested for DVB-T2 use; I would appreciate it if somebody with DVB-C capabilities
could test it as well - from inspection I cannot see any problems.

This is patch v2. It fixes some schoolboy style errors and removes superfluous
i2c entries in cxd2820r.h.

Signed-off-by: Steve Kerrison <steve@stevekerrison.com>
Acked-by: Antti Palosaari <crope@iki.fi>
Tested-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2011-09-03 18:13:41 -03:00
Andreas Oberritter
8fc74fdb0f [media] DVB: gp8psk-fe: use SYS_TURBO
Signed-off-by: Andreas Oberritter <obi@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2011-09-03 18:07:20 -03:00
Andreas Oberritter
14f55794b2 [media] DVB: dvb_frontend: Fix compatibility criteria for satellite receivers
identify a satellite receiver by its 'delivery_system' instead of
  'modulation', which may overlap between different delivery systems.

Signed-off-by: Andreas Oberritter <obi@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2011-09-03 18:07:18 -03:00
Dan Carpenter
2f098cb1c8 [media] dib9000: return error code on failure
The ret = -EIO needs to be before the goto.

Signed-off-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2011-09-03 13:08:20 -03:00
Dan Carpenter
0c61cc3ba4 [media] dib7000p: return error code on allocation failure
The goto needs to be moved after the assignment.

Signed-off-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2011-09-03 13:03:52 -03:00
Mauro Carvalho Chehab
8513e14457 [media] dvb-core, tda18271c2dd: define get_if_frequency() callback
Tuners in general convert a high frequency carrier into an Intermediate
Frequency (IF).

Digital tuners like tda18271, xc3028, etc. generally allow changing the IF
frequency, although they generally have recommented settings for the IF.
Analog tuners, have a fixed IF frequency, that depends on the physical
characteristics of some analog components.

For digital tuners, it makes sense to have ways to configure IF,
via the tuner's configuration structure, like what's done inside the
tda18271-fe maps.

The demods need to know what IF is used by the tuner, as it will need
to convert internally from IF into baseband. Currently, the bridge driver
needs to fill a per-demod configuration struct for it, or pass it via
a dvb_attach parameter.

The tda18271 datasheet recommends to use different IF's for different
delivery system types and for different bandwidths.

The DRX-K demod also needs to know the IF frequency in order to work,
just like all other demods. However, as it accepts different delivery
systems (DVB-C and DVB-T), the IF may change if the standard and/or
bandwidth is changed.

So, the usual procedure of passing it via a config struct doesn't work.

One might try to code it as two separate IF frequencies, or even as a
table in function of the delivery system and the bandwidth, but this
will be messy.

So, it is better and simpler to just add a new callback for it and
require the tuners that can be used with MFE frontends like drx-k
to implement a new callback to return the used IF.

Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Acked-by: Antti Palosaari <crope@iki.fi>
2011-09-03 12:46:33 -03:00
Jarod Wilson
f2d0c1c625 [media] em28xx: add em28xx_ prefix to functions
Makes it more straight-forward to follow stack traces if the functions
don't have generic names. Using this as a crutch while trying to better
understand the lockdep warnings I get when loading the em28xx driver.

CC: Devin Heitmueller <dheitmueller@kernellabs.com>
Signed-off-by: Jarod Wilson <jarod@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2011-09-03 11:17:39 -03:00
Jarod Wilson
2f00e158b5 [media] redrat3: remove unused dev struct members
Signed-off-by: Jarod Wilson <jarod@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2011-09-03 10:58:26 -03:00
Jonathan Corbet
297875b6a1 [media] videobuf2: Do not unconditionally map S/G buffers into kernel space
The one in-tree videobuf2-dma-sg driver (mmp-camera) has no need for a
kernel-space mapping of the buffers; one suspects that most other drivers
would not either.  The videobuf2-dma-sg module does the right thing if
buf->vaddr == NULL - it maps the buffer on demand if somebody needs it.  So
let's not map the buffer at allocation time; that will save a little CPU
time and a lot of address space in the vmalloc range.

Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Acked-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2011-09-03 10:57:33 -03:00
Andreas Oberritter
77b1e2fbbd [media] DVB: dvb_frontend: update locking in dvb_frontend_{add, get_event}
- fepriv->parameters_out isn't protected by events->mtx, so
    move the call to fe->ops.get_frontend out of the locked area.
  - move the assignment of e->status into the locked area.

  - use direct assignment instead of memcpy.

  - use mutex_lock instead of mutex_lock_interruptible, because
    all code paths protected by this mutex won't block.

Signed-off-by: Andreas Oberritter <obi@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2011-09-03 08:49:07 -03:00
Andreas Oberritter
20640bea87 [media] DVB: dvb_frontend: clear stale events on FE_SET_FRONTEND
the first event after an attempt to tune.

Signed-off-by: Andreas Oberritter <obi@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2011-09-03 08:48:12 -03:00
Andreas Oberritter
5c9f480bdb [media] DVB: dvb_frontend: avoid possible race condition on first event
enqueued before the frontend thread wakes up.

Signed-off-by: Andreas Oberritter <obi@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2011-09-03 08:47:33 -03:00
Andreas Oberritter
56ce5ac41a [media] DVB: dvb_frontend: fix stale parameters on initial frontend event
Modify it to use the data given by the user.

Signed-off-by: Andreas Oberritter <obi@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2011-09-03 08:46:59 -03:00
Julia Lawall
f00fd919ef [media] drivers/media/video/hexium_gemini.c: delete useless initialization
Delete nontrivial initialization that is immediately overwritten by the
result of an allocation function.

The semantic match that makes this change is as follows:

// <smpl>
@@
type T;
identifier i;
expression e;
@@

(
T i = \(0\|NULL\|ERR_PTR(...)\);
|
-T i = e;
+T i;
)
... when != i
i = \(kzalloc\|kcalloc\|kmalloc\)(...);

// </smpl>

Signed-off-by: Julia Lawall <julia@diku.dk>
Acked-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2011-09-03 08:43:14 -03:00
Mauro Carvalho Chehab
fd34cb08ba [media] tuner/xc2028: Fix frequency offset for radio mode
In radio mode, no frequency offset should be used.

Instead of taking Thierry's patch that creates a separate function
to calculate the digital offset, it seemed better to just keep
everything at the same place.

Reported-by: Thierry Reding <thierry.reding@avionic-design.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2011-08-31 15:16:00 -03:00
Thierry Reding
4d37ece757 [media] tuner/xc2028: Add I2C flush callback
When loading the firmware, complete each chunk by sending an I2C flush
command to the frontend. Some devices like the tm6000 seem to require
this to properly flush the I2C buffers.

The current code in tm6000 executes the flush command once after each
I2C transfer, which slows down the firmware loading especially when
loading large BASE type images.

Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2011-08-31 15:03:22 -03:00
Sakari Ailus
69d232ae8e [media] omap3isp: ccdc: Use generic frame sync event instead of private HS_VS event
The ccdc block in the omap3isp produces events whenever it starts receiving
a new frame. A private HS_VS event was used for this previously. Now, the
generic V4L2_EVENT_FRAME_SYNC event is being used for the purpose.

This patch also provides the frame sequence number to user space.

Signed-off-by: Sakari Ailus <sakari.ailus@iki.fi>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2011-08-29 12:38:51 -03:00
Jose Alberto Reguero
c9f88aa976 [media] ttusb2: add support for the dvb-t part of CT-3650 v3
Signed-off-by: Jose Alberto Reguero <jareguero@telefonica.net>
Reviewed-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2011-08-27 11:44:49 -03:00
istvan_v@mailbox.hu
84b271488d [media] cx88: notch filter control fixes
This patch reduces the number of available choices for the notch filter type control
so that the standard-specific filter types cannot be selected. It is now limited to
being either 0 (4xFsc, the default) or 1 (square pixel optimized).
The patch also removes the initialization of this control from cx88_reset(), since
that is already done by init_controls(), which is called by cx8800_initdev().

Signed-off-by: Istvan Varga <istvan_v@mailbox.hu>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2011-08-27 11:21:16 -03:00
Joe Perches
2b50763a0b [media] tda18212: Use standard logging, remove tda18212_priv.h
Use the more current logging styles with pr_fmt.
Remove now unnecessary private include.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2011-08-27 11:20:45 -03:00
Joe Perches
be85fefecb [media] tda18271: Use printk extension %pV
Deduplicate printk formats to save ~20KB text.

$ size drivers/media/common/tuners/tda18271*o.*
   text	   data	    bss	    dec	    hex	filename
  10747	     56	   1920	  12723	   31b3	drivers/media/common/tuners/tda18271-common.o.new
  18889	     56	   3112	  22057	   5629	drivers/media/common/tuners/tda18271-common.o.old
  20561	    204	   4264	  25029	   61c5	drivers/media/common/tuners/tda18271-fe.o.new
  31093	    204	   6000	  37297	   91b1	drivers/media/common/tuners/tda18271-fe.o.old
   3681	   6760	    440	  10881	   2a81	drivers/media/common/tuners/tda18271-maps.o.new
   5631	   6760	    680	  13071	   330f	drivers/media/common/tuners/tda18271-maps.o.old

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2011-08-27 11:19:43 -03:00
Antti Palosaari
f68baeff45 [media] af9015: use logic or instead of sum numbers
Style issue.

Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2011-08-27 11:14:43 -03:00
Antti Palosaari
4c0cfa24f7 [media] af9015: map remote for Leadtek WinFast DTV2000DS
Thanks to Thomas Gutzler for reporting this.

Signed-off-by: Antti Palosaari <crope@iki.fi>
Cc: Thomas Gutzler <thomas.gutzler@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2011-08-27 11:14:32 -03:00
Antti Palosaari
e36454376a [media] em28xx: use MFE lock for PCTV nanoStick T2 290e
Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2011-08-27 11:14:22 -03:00
Julia Lawall
eb28dc39d3 [media] drivers/media/dvb/dvb-usb/usb-urb.c: adjust array index
Convert array index from the loop bound to the loop index.

A simplified version of the semantic patch that fixes this problem is as

// <smpl>
@@
expression e1,e2,ar;
@@

for(e1 = 0; e1 < e2; e1++) { <...
  ar[
- e2
+ e1
  ]
  ...> }
// </smpl>

Signed-off-by: Julia Lawall <julia@diku.dk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2011-08-27 11:14:15 -03:00
Julian Scheel
93165b7774 [media] Add support for new revision of KNC 1 DVB-C cards. Using tda10024 instead of tda10023, which is compatible to tda10023 driver
Signed-off-by: Julian Scheel <julian@jusst.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2011-08-27 10:41:46 -03:00
Malcolm Priestley
f6d8735493 [media] it913x: Driver for Kworld UB499-2T (id 1b80:e409) v1.05
Driver for Kworld UB499-2T (id 1b80:e409)

The device driver has been named it913x, so that support for other family members
can be added later.

TODOs
Firmware support for other it913x devices.
Remote control support, there are two known types.

Signed-off-by: Malcolm Priestley <tvboxspy@gmail.com>
[mchehab@redhat.com: Fix a merge conflict]
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2011-08-27 10:35:21 -03:00
Malcolm Priestley
3dbbf82f49 [media] it913x_fe: frontend and tuner driver v1.05
Fronted and Tuner Driver for ITE IT913x Series with inital support for
IT9137 integrated demodulator and tuner device.

The driver is loosely based on AF9035 series. However, support is not intended for
this device specificity.

The IT9137 tuner has been tested on UHF bands, but VHF has only been simulated.

Possible TODO the tuner sections may be separated from the main driver. All future devices
should use the it913x_fe_script_loader for other tuner devices.

Signed-off-by: Malcolm Priestley <tvboxspy@gmail.com>
[mchehab@redhat.com: Fix an issue at the Kconfig help]
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2011-08-27 10:29:20 -03:00
Doron Cohen
ea3709435c [media] siano: apply debug flag to module level
Siano modules already had sms_dbg flag which is a module parameter which
sets the debug mode so module prints messages to dmesg for debugging.
The variable was static therefore apply only to the file which defines
the module. In modules as smsmdtv.ko that contain a few files, the debug
flag applied only for functions in that main file.
flag was changed to be non-static and therefore can be accessed by all
module files (although it is still not exported out of the module).

Signed-off-by: Doron Cohen <doronc@siano-ms.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2011-08-27 09:56:06 -03:00
Jarod Wilson
fda516b72a [media] mceusb: update version, copyright, author
Add note about recent updates coming from Microsoft's publicly available
specs on Windows Media Center remotes and receivers/transmitters.

Signed-off-by: Jarod Wilson <jarod@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2011-08-27 08:57:01 -03:00
Jarod Wilson
e217fb43c4 [media] mceusb: report actual tx frequencies
Rather than dumping out hex values, lets print the actual calculated
frequency and period the hardware has been configured for. After this

[ 2643.276215] mceusb 3-1:1.0: tx data: 9f 07 (length=2)
[ 2643.276218] mceusb 3-1:1.0: Get carrier mode and freq
[ 2643.277206] mceusb 3-1:1.0: rx data: 9f 06 01 42 (length=4)
[ 2643.277209] mceusb 3-1:1.0: Got carrier of 37037 Hz (period 27us)

Matches up perfectly with the table in Microsoft's docs.

Of course, I've noticed on one of my devices that the MS-recommended
default value of 1 for carrier pre-scaler and 66 for carrier period was
butchered, and instead of converting 66 to hex (0x42 like above), they
put in 0x66, so the hardware reports a default carrier of 24390Hz.
Fortunately, I guess, this particular device is rx-only, but I wouldn't
put it past other hw to screw up here too.

Signed-off-by: Jarod Wilson <jarod@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2011-08-27 08:56:39 -03:00
Jarod Wilson
b71969bee2 [media] mceusb: flash LED (emu v2+ only) to signal end of init
Signed-off-by: Jarod Wilson <jarod@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2011-08-27 08:55:33 -03:00
Jarod Wilson
a411e83944 [media] mceusb: get misc port data from hardware
According to the specs, you can read the number of tx ports, number of
rx sensors, which tx ports have cables plugged into them, and which rx
sensors are active. In practice, most of my devices do seem to report
sane values for tx ports and rx sensors (but not all -- one without any
tx ports reports having them), and most report the active sensor
correctly, but only one of eight reports cabled tx ports correctly. So
for the most part, this is just for informational purposes.

Signed-off-by: Jarod Wilson <jarod@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2011-08-27 08:55:02 -03:00
Jarod Wilson
ab1072eba9 [media] mceusb: query device for firmware emulator version
Supposedly, there are essentially three different classes of devices
that are compatible with Microsoft's specs. First are the "legacy"
devices, which are built using Microsoft-provided hardware specs and
firmware. Second are "emulator" devices, which are built using custom
hardware and firmware, written to emulate Microsoft's firmware. Third
are "port" devices, which have their own device driver and firmware,
which provides compatible data to higher levels of the stack.

>From what I can tell, things like nuvoton-cir and fintek-cir are
essentially "port" devices -- their raw IR buffer format is very similar
to that of the mceusb devices. Now, within the mceusb driver, we have
three different "generations", which at first, seemed like maybe they
mapped to emulator versions. Unfortuantely, every single device I have
responds "illegal command" to the query to get firmware emulator version
from the hardware, which means they're either all emulator version 1, or
they're legacy devices, and our different "generations" aren't at all
related here. Though in theory, its possible the gen1 devices are
"legacy" devices and the rest are emulator v1. There are some useful
features of the v2 interface I was hoping to play with, but alas...

Signed-off-by: Jarod Wilson <jarod@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2011-08-27 08:53:15 -03:00