- 06 Jun, 2017 40 commits
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David Härdeman authored
These two functions only make the logic in lirc_register_driver() harder to follow. (Note that almost no other driver calls kobject_set_name() on their cdev so I simply removed that part). Signed-off-by:
David Härdeman <david@hardeman.nu> Signed-off-by:
Sean Young <sean@mess.org> Signed-off-by:
Mauro Carvalho Chehab <mchehab@s-opensource.com>
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David Härdeman authored
Always let the kernel decide what minor the lirc chardev gets. Signed-off-by:
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David Härdeman authored
Merging the two means that lirc_allocate_buffer() is called before device_add() and cdev_add() which makes more sense. This also simplifies the locking slightly because lirc_allocate_buffer() will always be called with lirc_dev_lock held. Signed-off-by:
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David Härdeman authored
Every caller of lirc_register_driver() passes their own fops and there are no users of lirc_dev_fop_write() in the kernel tree. Thus we can make fops mandatory and remove lirc_dev_fop_write(). Signed-off-by:
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David Härdeman authored
out_sysfs is misleading, sysfs only comes into play after device_add(). Also, calling device_init() before the rest of struct dev is filled out is clearer. Signed-off-by:
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David Härdeman authored
There are no drivers which use this functionality. Signed-off-by:
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David Härdeman authored
Since there are no users of this functionality, it can be removed altogether. Signed-off-by:
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David Härdeman authored
drv->set_use_inc and drv->set_use_dec are already optional so we can remove all dummy functions. Signed-off-by:
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A Sun authored
Once IR blasting or mceusb device commands fail with mce_async_callback() TX -EPIPE error, all subsequent TX to device then fail with the same error. ... [ 249.986174] mceusb 1-1.2:1.0: requesting 38000 HZ carrier [ 249.986210] mceusb 1-1.2:1.0: send request called (size=0x4) [ 249.986256] mceusb 1-1.2:1.0: send request complete (res=0) [ 249.986403] mceusb 1-1.2:1.0: Error: request urb status = -32 (TX HALT) [ 249.999885] mceusb 1-1.2:1.0: send request called (size=0x3) [ 249.999929] mceusb 1-1.2:1.0: send request complete (res=0) [ 250.000013] mceusb 1-1.2:1.0: Error: request urb status = -32 (TX HALT) [ 250.019830] mceusb 1-1.2:1.0: send request called (size=0x21) [ 250.019868] mceusb 1-1.2:1.0: send request complete (res=0) [ 250.020007] mceusb 1-1.2:1.0: Error: request urb status = -32 (TX HALT) ... Fault simulation/injection is by executing the following USB operation in a mceusb instrumented driver, prior to TX I/O. retval = usb_control_msg(ir->usbdev, usb_sndctrlpipe(ir->usbdev, 0), USB_REQ_SET_FEATURE, USB_RECIP_ENDPOINT, USB_ENDPOINT_HALT, usb_pipeendpoint(ir->pipe_out), NULL, 0, USB_CTRL_SET_TIMEOUT); dev_dbg(ir->dev, "set halt retval, %d", retval); After setting halt state for the TX endpoint, perform an lirc "irsend" to generate TX traffic to device. After the TX HALT, the patch restores subsequent TX to working state. ... [ 508.009638] mceusb 1-1.2:1.0: send request called (size=0x3) [ 508.009697] mceusb 1-1.2:1.0: send request complete (res=0) [ 508.009847] mce_async_callback() [ 508.009864] mceusb 1-1.2:1.0: Error: request urb status = -32 (TX HALT) [ 508.009890] mceusb 1-1.2:1.0: kevent 0 scheduled [ 508.021552] mceusb 1-1.2:1.0: send request called (size=0x21) [ 508.021598] mceusb 1-1.2:1.0: send request complete (res=0) [ 508.021963] mce_async_callback() [ 508.021981] mceusb 1-1.2:1.0: tx data: 84 b0 0c 8c 0c 84 8c 0c 8c 0c 84 8c 0c 8c 0c 84 98 0c 98 0c 84 98 0c 8c 0c 84 8c 0c 8c 0c 81 8c 80 (length=33) [ 508.021997] mceusb 1-1.2:1.0: Raw IR data, 0 pulse/space samples [ 508.066627] mceusb 1-1.2:1.0: send request called (size=0x3) [ 508.066669] mceusb 1-1.2:1.0: send request complete (res=0) [ 508.066841] mce_async_callback() [ 508.066858] mceusb 1-1.2:1.0: tx data: 9f 08 03 (length=3) ... Signed-off-by:A Sun <as1033x@comcast.net> Signed-off-by:
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A Sun authored
RX -EPIPE failure with infinite loop and flooding of [ 2851.966506] mceusb 1-1.2:1.0: Error: urb status = -32 log message at 8000 messages per second. Bug trigger appears to be normal, but heavy, IR receiver use. Driver and Linux host become unusable after error. Also seen at https://sourceforge.net/p/lirc/mailman/message/34886165/ Fix: Message reports RX usb halt (stall) condition requiring usb_clear_halt() call in non-interrupt context to recover. Add driver workqueue call to perform this recovery based on method in use for the usbnet device driver. Signed-off-by:
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Alex Deryskyba authored
On the Amlogic SoCs, the bootloader firmware can handle the IR hardware in order to Wake up or Power back the system when in suspend on shutdown mode. This patch switches the hardware configuration in a state usable by the firmware to permit powering the system back. Some vendor bootloader firmware were modified to switch to this configuration but it may not be the case for all available products. This patch was originally posted at [1]. [1] https://github.com/LibreELEC/linux-amlogic/pull/27Signed-off-by:
Alex Deryskyba <alex@codesnake.com> Signed-off-by:
Neil Armstrong <narmstrong@baylibre.com> Signed-off-by:
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Jonas Karlman authored
This patch fixes meson-it driver by storing event without processing to avoid losing key pressed events when system is loaded and events are occurring too fast. This issue was reported at [1] [1] https://github.com/LibreELEC/linux-amlogic/pull/42Signed-off-by:
Jonas Karlman <jonas@kwiboo.se> Signed-off-by:
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Devin Heitmueller authored
The Kconfig format is strict enough where if the indentation isn't correct then the "make menuconfig" will break. Fix the indentation to match all the other entries. Signed-off-by:
Devin Heitmueller <dheitmueller@kernellabs.com> Signed-off-by:
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Heiner Kallweit authored
Switch the interrupt description to the default which is the of node name. This is more in line with the interrupt descriptions in other meson drivers. Signed-off-by:
Heiner Kallweit <hkallweit1@gmail.com> Signed-off-by:
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Heiner Kallweit authored
We don't need the memory barriers here and an interrupt handler should be as fast as possible. Therefore switch to readl_relaxed. Signed-off-by:
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Heiner Kallweit authored
Switch to the managed versions of rc_allocate_device/rc_register_device, thus simplifying the code. Signed-off-by:
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Heiner Kallweit authored
Make use of the bitfield macros thus partially hiding the complexity of dealing with bitfields. The patch also includes a minor fix to REG0_RATE_MASK, so far it was set to bit 0..10, but according to the spec it's bit 0..11. [mchehab@s-opensource.com: readd REG1_MODE_SHIFT and REG2_MODE_SHIFT that got removed on the original patch, as this will be used on another patch] Signed-off-by:
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Heiner Kallweit authored
The irq number is used in the probe function only, therefore just use a local variable. Signed-off-by:
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Andi Shyti authored
Signed-off-by:
Andi Shyti <andi.shyti@samsung.com> Signed-off-by:
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A Sun authored
Some dev_dbg messages are misleading. Some dev_dbg messages have inconsistent formatting. mceusb_dev_printdata() prints incorrect range of bytes (0 to len) in buffer which the driver will actually process next. Signed-off-by:
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A Sun authored
Intermittent RX truncation and loss of IR received data. This resulted in receive stream synchronization errors where driver attempted to incorrectly parse IR data (eg 0x90 below) as command response. [ 3969.139898] mceusb 1-1.2:1.0: processed IR data [ 3969.151315] mceusb 1-1.2:1.0: rx data: 00 90 (length=2) [ 3969.151321] mceusb 1-1.2:1.0: Unknown command 0x00 0x90 [ 3969.151336] mceusb 1-1.2:1.0: rx data: 98 0a 8d 0a 8e 0a 8e 0a 8e 0a 8e 0a 9a 0a 8e 0a 0b 3a 8e 00 80 41 59 00 00 (length=25) [ 3969.151341] mceusb 1-1.2:1.0: Raw IR data, 24 pulse/space samples [ 3969.151348] mceusb 1-1.2:1.0: Storing space with duration 500000 Bug trigger appears to be normal, but heavy, IR receiver use. Signed-off-by:
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Colin Ian King authored
Trivial fix to spelling mistake in dev_err message Signed-off-by:
Colin Ian King <colin.king@canonical.com> Signed-off-by:
Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by:
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Gustavo A. R. Silva authored
Initialize scalar variables _pid_ and _ver_ to avoid a possible misbehavior. Addresses-Coverity-ID: 1324239 Addresses-Coverity-ID: 1324240 Signed-off-by:
Gustavo A. R. Silva <garsilva@embeddedor.com> Signed-off-by:
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Philipp Zabel authored
As of commit bb475230 ("reset: make optional functions really optional"), the reset framework API calls use NULL pointers to describe optional, non-present reset controls. This allows to return errors from devm_reset_control_get_optional without special cases and to call reset_control_reset unconditionally. Signed-off-by:
Philipp Zabel <p.zabel@pengutronix.de> Signed-off-by:
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Oleh Kravchenko authored
This patch provide only digital support; The device is based on 24C02N EEPROM, Panasonic MN88473 demodulator, Rafael Micro R828D tuner and CX23102-11Z chipset; USB id: 15f4:0135. Status: - DVB-T/T2 works fine; - Composite works fine; - Analog not implemented. Signed-off-by:
Oleh Kravchenko <oleg@kaa.org.ua> Signed-off-by:
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Devin Heitmueller authored
For reasons unclear, we intermittently see a case where the tune is successful but the bulk stream fails to deliver any packets. Add a timer to automatically stop/start the data pump if we encounter such a case. Signed-off-by:
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Devin Heitmueller authored
We need to set the initial modulation on driver setup, or else any calls to GET_FRONTEND prior to the first SET_FRONTEND call will get back garbage. Signed-off-by:
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Devin Heitmueller authored
The xc5000 driver should not be spinning waiting for an analog lock. The ioctl() should be returning immediately and the application is responsible for polling for lock status. This behavior isn't very visible in cases where you tune to a valid channel, since lock is usually achieved much faster than 400ms. However it is highly visible where doing things like changing video standards, which sends tuning request for a frequency that is almost never going to have an actual channel on it. Also fixup the return values to treat zero as success and an actual error code on error (to be consistent with other functions). Note this change has no practical effect at this time as none of the callers inspect the return value. Signed-off-by:
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Devin Heitmueller authored
Only looking at the lock register causes the status to float between locked and not locked when there is no signal. So improve the logic to also examine the state of the FSC PLL, which results in the lock status being consistently reported. Signed-off-by:
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Devin Heitmueller authored
The second highest bit in the register value is an indicator to do a register read, so remove it since now au8522_regread() inserts the bit automatically. Also remove a stray instance where we were actually trying to write to the I2C status register, which was actually a read. Signed-off-by:
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Devin Heitmueller authored
The leading bit in register values is actually an indicator as to whether to perform a read or write, so remove the bit from the register values, since the au8522_writereg() is now responsible for adding this bit automatically. Signed-off-by:
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Devin Heitmueller authored
I got this working a couple of years ago. Remove it from the list of known issues. Signed-off-by:
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Devin Heitmueller authored
The original code was based on my reverse engineering of an I2C trace of the Windows driver. Now that I know what the registers actually do, restructure the code a bit, removing some unneeded register programming and fixing the sequencing of operations. This reduces the time it takes to change inputs from 1300ms down to 600ms (as measured by "time v4l2-ctl -i 0") Note this does not address outstanding issues related to the management of the module clocks and power control for the various blocks, which will be done in a separate patch. Signed-off-by:
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Devin Heitmueller authored
Some stray lines got inserted into the driver when I reverse engineered the I2C traffic (at the time I didn't know what the registers did). It turns up these registers muck with the onboard I2C master, which we don't use since we instead use the I2C gate. Remove the lines which can actually interfere with the operation of the bus. Signed-off-by:
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Devin Heitmueller authored
Since we don't suppoort sliced VBI with the au0828/au8522, there is no need to configure the au8522 VBI slicer, which because of the coefficients requires a large amount of i2c traffic. Remove the relevant code. Note that this has no effect on raw VBI support, which is currently the only supported way to access VBI on this device. Signed-off-by:
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Rene Hickersberger authored
Fixed spelling mistake of "successfully" Signed-off-by:
Rene Hickersberger <renehickersberger@gmx.net> Signed-off-by:
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Benjamin Gaignard authored
Minor fixes in comments Signed-off-by:
Benjamin Gaignard <benjamin.gaignard@linaro.org> Signed-off-by:
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Benjamin Gaignard authored
Hardware could support up to 16 logical addresses which is more than needed by CEC specifications. Let use CEC_MAX_LOG_ADDRS instead of limited it on one. stih_cec_adap_log_addr() function was alredy written to support multiple addresses requests. Signed-off-by:
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Gustavo A. R. Silva authored
Remove variable self assignment. Addresses-Coverity-ID: 1408817 Signed-off-by:
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Johan Hovold authored
Add the missing endianness conversions to a debug call printing the USB device-descriptor idVendor and idProduct fields during probe. Signed-off-by:
Johan Hovold <johan@kernel.org> Signed-off-by:
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