- 10 Oct, 2007 40 commits
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Trent Piepho authored
The driver kepts a static global array of snd_card pointers for each card probed, which was never used. Signed-off-by:
Trent Piepho <xyzzy@speakeasy.org> Signed-off-by:
Mauro Carvalho Chehab <mchehab@infradead.org>
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Trent Piepho authored
Rework the way the DMA buffer is handled and IRQs are generated. ALSA uses a ring-buffer of multiple periods. Each period is supposed to corrispond to one IRQ. The existing driver was generating one interrupt per ring-buffer, as opposed to per period. This meant that as soon as the IRQ was generated, the hardware was already starting to re-write the beginning of the buffer. Since the DMA happens on a per-line basis, there was only a narrow window to copy the data out before the buffer was overwritten. The cx88 core RISC program generator is modified so that it can set the IRQ and counter flags to count every X lines of DMA transfer. This way we can generate an interrupt every period instead of every full ring-buffer. Right now only period of one line are supported, but it should be possible to support longer periods. Note that a WRITE instruction generates an IRQ when it starts, not when the transfer is finished. Thus to generate an IRQ when line X is done, one must set the IRQ flag on the instruction that starts line X+1, not the one that ends line X. Change the line size so that there are four lines in the SRAM FIFO. If there are not four lines, the analog output from the cx88's internal DACs is full of clicks and pops. Try to handle FIFO sync errors. Sometimes the chip generates many of these errors before audio data starts. Up to 50 sync errors will be ignored and the counter reset. Have the IRQ handler save the RISC counter to the chip struct, and then have the pointer callback use this to calculate the pointer position. We could read the counter from the pointer callback, but sometimes the sync errors on start up cause the counter to go crazy. ALSA sees this and thinks there has been an overrun. The IRQ hander can avoid saving the counter position on sync errors. The chip "opened" flag wasn't necessary. ALSA won't try to open the same substream multiple times. Probably this code was cut&pasted from the bt87x driver, which has multiple sub-streams for one chip. Do error checking for the videobuf mapping functions. snd_card_cx88_runtime_free() is useless and can be deleted. Signed-off-by:
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Trent Piepho authored
When the risc instrunctions from the CMDS were printed, instruction arguments weren't taken into account. This changes output like: cx88[0]: risc0: 0x1d010400 [ write sol eol irq1 cnt0 count=1024 ] cx88[0]: risc1: 0x0cac2800 [ INVALID sol eol 23 21 19 18 13 count=2048 ] cx88[0]: risc2: 0x1d010400 [ write sol eol irq1 cnt0 count=1024 ] cx88[0]: risc3: 0x0cac2c00 [ INVALID sol eol 23 21 19 18 13 count=3072 ] cx88[0]: risc0: 0x1d010400 [ write sol eol irq1 cnt0 count=1024 ] cx88[0]: risc1: 0x0cac2800 [ arg #1 ] cx88[0]: risc2: 0x1d010400 [ write sol eol irq1 cnt0 count=1024 ] cx88[0]: risc3: 0x0cac2c00 [ arg #1 ] Signed-off-by:
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Jean Delvare authored
Convert the initialization of ivtv_i2c_algo_template to C99-style. Otherwise a future change to struct i2c_algo_bit_data would break this code. Also declared that structure const - it's a template after all. Signed-off-by:
Jean Delvare <khali@linux-fr.org> Signed-off-by:
Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by:
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Mauro Carvalho Chehab authored
Since at least kernel 2.6.12-rc2, module.h includes moduleparm.h. This patch removes all occurences of moduleparm.h from drivers/media files. Signed-off-by: -
Michal Piotrowski authored
Signed-off-by:
Michal Piotrowski <michal.k.k.piotrowski@gmail.com> Signed-off-by:
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Michal Piotrowski authored
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Michal Piotrowski authored
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Michael Krufky authored
Signed-off-by:
Michael Krufky <mkrufky@linuxtv.org> Signed-off-by:
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Michael Krufky authored
The file, tuner-driver.h was originally named tuner-hw.h, but we decided to rename it. At the time, I had forgotten to change the #ifdef __TUNER_HW_H__ to #ifdef __TUNER_DRIVER_H__ . This patch corrects that. Signed-off-by:
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Edgar Simo authored
Add DVB-T support for Avermedia Super 007 Analog television is untested. The device lacks input adapters for radio, svideo & composite -- seems to be a DVB-T ONLY device. Signed-off-by:
Edgar Simo <bobbens@gmail.com> Acked-by:
Hermann Pitton <hermann-pitton@arcor.de> Signed-off-by:
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Edgar Simo authored
This is a simple whitespace cleanup. Signed-off-by:
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Trent Piepho authored
The revision is part of the pci_dev struct, so there is no need to read it in. Stop storing the revision and latency in the chip struct, since they're never used after being printed out when the driver loads. linux/pci.h wasn't included. It was getting picked up something else, probably cx88.h, but this file uses struct pci_dev so it should include pci.h. Signed-off-by:
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Trent Piepho authored
channels_min should be 2, not 1. The hardware only supports stereo. Signed-off-by:
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Trent Piepho authored
Currently the driver turns on audio interrupts, then sets the audio interrupt mask to select which interrupts to get. One could received unwanted interrupts since the mask is set _after_ interrupts have already been turned on. Change the order of the operations, and clear any audio interrupt status bits that are already set for good measure. Before changing the SRAM FIFO parameters, make sure the FIFO isn't being used. This shouldn't happen with just the ALSA driver, as it should never try to turn on FIFO/RISC/DMA while they are already on. However, the V4L driver needs to turn the audio FIFO on for analog audio output to work (undocumented cx88 bug). The FIFO parameters are in an inconsistent state while they are updated, and this results in many FIFO sync error IRQs if the FIFO is in use while it's in this inconsistent state. Also create and use a bunch of symbolic constants for audio interrupt mask bits. Signed-off-by:
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Trent Piepho authored
When an irq handled by the cx88 core driver (currently IR and errors) occurs and the cx88-alsa irq handler is the first called, it will claim to have handled the irq but it doesn't call cx88_core_irq() to handle it. The means loading cx88-alsa can disable the IR remote. Signed-off-by:
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Trent Piepho authored
Used for the PCI_INTMSK and PCI_INT_STAT registers. Signed-off-by:
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Hans Verkuil authored
Add VIDIOC_OVERLAY to enable/disable the OSD. Also add the OSD state to the log status report. Signed-off-by:
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Hans Verkuil authored
The return value of ivtv_udma_fill_sg_list() was changed by the highmem bugfix, but that return value was still used in ivtv-yuv.c. Revert to the old return value, but in addition return -1 in case of a memory allocation error. Signed-off-by:
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Hans Verkuil authored
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Hans Verkuil authored
When trying to DMA userspace buffers to the cx23415 you need to check whether the page is in highmem. If this is the case, then bounce buffers have to be used to allow DMA. Signed-off-by:
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Hans Verkuil authored
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Hans Verkuil authored
Serialization is now done on the open/close/ioctl level and also when the read/write/poll start an encoder/decoder stream. Signed-off-by:
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Hans Verkuil authored
- add FILE debug flag for open/close/read/write/poll. - show cmd for encoder/decoder command ioctl. Signed-off-by:
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Hans Verkuil authored
Some streams (PCM, VBI decoding) do not need that much memory, so specify the allocated memory in kB instead of MB to limit memory usage. E.g. 1 MB is overkill for the VBI decoding stream, 64 kB is enough. Signed-off-by:
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Hans Verkuil authored
The TV output standard was set only on first use, which meant that the saa7127 was set to NTSC until then, leading to flickering on PAL systems. Since the saa7127 has no firmware it is OK to initialize it immediately. Signed-off-by:
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Hans Verkuil authored
Whenever the 0x80b register is used the microcontroller should be reset. Signed-off-by:
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Hans Verkuil authored
- Give up frame after three retries. - When the last capture/decode ends, make sure to delete the dma_timer. Signed-off-by:
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Hans Verkuil authored
- Invalid VBI packets should result in an empty VBI frame, not in an zero-sized frame that causes the reader to incorrectly return a 0 (EOF) value. - PIO completion should not reset the sg_pending_size field. - The DMA offset detection code should be ignored for PIO transfers: it somehow messes up the data on the card and is not needed anyway for PIO. Signed-off-by:
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Hans Verkuil authored
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Hans Verkuil authored
It turns out that the cx23415/6 DMA engine cannot do scatter/gather DMA reliably. Every so often depending on the phase of the moon and your hardware configuration the cx2341x DMA engine simply chokes on it and you have to reboot to get it working again. This change replaced the scatter/gather DMA by single transfers at a time, where the driver is now responsible for DMA-ing each buffer. UDMA is still done using scatter/gather DMA, that will be fixed soon. Many thanks to Mark Bryars <mark.bryars@etvinteractive.com> for discovering the link between scatter/gather and the DMA timeouts. Signed-off-by:
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Hans Verkuil authored
When there are no more free buffers, then buffers are stolen from the predma queue. Buffers should be stolen from the head of that queue (which is where the most recently added buffers are) and all buffers belonging to a frame should be stolen. Otherwise 'half-frames' would remain in the queue, which leads to ugly playback and complete sync failure for YUV buffers. Signed-off-by:
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Hans Verkuil authored
The CX2341X_ENC_INITIALIZE_INPUT firmware call requires careful handling, otherwise the computer can freeze or the top-third of the screen can start flickering. This patch ensures that CX2341X_ENC_INITIALIZE_INPUT is called at the right time and in the right way. In addition the stop capture handling was improved so that the last pending DMA transfer is also processed. Otherwise this would be the first data that arrived when a new capture was started which is not what you want. Signed-off-by:
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Kazuhiko Kawakami authored
Signed-off-by:
Kazuhiko Kawakami <kazz-0@mail.goo.ne.jp> Signed-off-by:
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Hans Verkuil authored
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Darren Salt authored
Working with Nova-T Stick (70001) with remote control model A415. Untested with other dib0700m/dib0700p devices. Signed-off-by:
Darren Salt <linux@youmustbejoking.demon.co.uk> Signed-off-by:
Patrick Boettcher <pb@linuxtv.org> Signed-off-by:
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Darren Salt authored
Typo fix in Nova-TD description Signed-off-by:
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Michael Mauch authored
Repair modinfo parameter descriptions for force_pid_filter_usage and disable_rc_polling. Signed-off-by:
Michael Mauch <michael.mauch@gmx.de> Signed-off-by:
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Alan Nisota authored
There are now 4 different versions of the GENPIX USB adapter. The newest 'Skywalker' models are fully self-contained, and need no additional hardware to be used. A very reliable DVB-S card even without using any of the alternate modulatations (which this kernel module does not currently support) The following patch adds support for all 4 versions of the genpix adapter (www.genpix-electronics.com). Signed-off-by: Alan Nisota alannisota@gmail.com Signed-off-by:
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Trent Piepho authored
FM radio transmission use a preemphasis/deemphasis scheme to reduce high-frequency noise. The cx88 audio decoder is supposedly set to no deemphasis by the current driver. However, the "no deemphasis" setting doesn't work. On my chip, cx23883, it produces the same result as the 75 us time constant. Maybe the default settings on the cx23881 are for 50 us? Since the deemphasis time constant varies by country, allow setting it via a module parameter. Signed-off-by:
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