- 20 Mar, 2012 10 commits
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Jonathan Corbet authored
There is only one frame known to the DMA engine in scatter/gather mode, but it still tells us that any or all of frames 1-3 are done at each completion interrupt. Avoid the creation of junk frames by being sure to only "complete" one on each interrupt. Signed-off-by:
Jonathan Corbet <corbet@lwn.net> Signed-off-by:
Mauro Carvalho Chehab <mchehab@redhat.com>
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Jonathan Corbet authored
I had learned through hard experience that dinking around with the DMA descriptors while the C1_DESC_ENA enable bit was set is a recipe for all kinds of truly malicious behavior on the hardware's part, regardless of whether the DMA engine is actually operating at the time. That notwithstanding, the driver did so dink, resulting in "green frame" captures and the death of the system in random, spectacular ways. Move the tweaking of C1_DESC_ENA to the same function that sets the descriptor so we know that we'll never try to set a descriptor while that bit is set. Signed-off-by:
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Jonathan Corbet authored
Experience shows that, on the Armada platform, it can take as much as 120ms for the DMA engine to actually shut down after it has been told to. So a 40ms timeout is not adequate; use 150ms instead. Also make sure we don't leave the DMA_ACTIVE flag set once things are down. Signed-off-by:
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Jonathan Corbet authored
The marvell cam driver retained just enough of the owner-tracking logic from cafe_ccic to be broken; it could, conceivably, cause the driver to release DMA memory while the controller is still active. Simply remove the remaining pieces and ensure that the controller is stopped before we free things. Signed-off-by:
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Jonathan Corbet authored
The controller stop/restart logic could possibly restart DMA after the driver things things have stopped, with suitably ugly results. Make sure that we only restart the hardware if we're supposed to be streaming. Signed-off-by:
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Ezequiel García authored
Signed-off-by:
Ezequiel Garcia <elezegarcia@gmail.com> Signed-off-by:
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Philipp Zabel authored
This patch adds clk_prepare/clk_unprepare calls to the pxa_camera driver by using the helper functions clk_prepare_enable and clk_disable_unprepare. Signed-off-by:
Philipp Zabel <philipp.zabel@gmail.com> Cc: Mauro Carvalho Chehab <mchehab@infradead.org> Cc: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Cc: Robert Jarzmik <robert.jarzmik@free.fr> Signed-off-by:
Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by:
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Guennadi Liakhovetski authored
Newer CEU versions, e.g., the one, used on sh7372, support image sizes larger than 2560x1920. Retrieve maximum sizes from platform properties. Signed-off-by:
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Guennadi Liakhovetski authored
soc_camera_power_on() calls client's .s_power(1) method, which can try to access the client hardware. This, however, is typically only possible, after calling host's .add() method, because that's where the host driver usually turns the master clock on. Signed-off-by:
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Ezequiel García authored
This changes rc_core to not load the IR decoders at load time, postponing it to load only if a RC_DRIVER_IR_RAW device is registered via rc_register_device. We use a static boolean variable, to ensure decoders modules are only loaded once. Tested with rc-loopback device only. Signed-off-by:
Jarod Wilson <jarod@redhat.com> Signed-off-by:
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- 19 Mar, 2012 30 commits
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Malcolm Priestley authored
Remove incorrect SEC_MINI_B settings-TODO complete this section. Correct break and remove return -EINVAL within set tone. It appears there is a bug that occasionally something other than ON/OFF is sent stalling the driver. Just continue and write back registers. Set register b2 in setup. This is the set voltage pin which isn't used in lmedm04 driver but it is always set to 0x1. Correct the if statements in set_tuner_rf. Signed-off-by:
Malcolm Priestley <tvboxspy@gmail.com> Signed-off-by:
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Antti Palosaari authored
Some changes for previous patch I liked to do. Just move tuner init and sleep to own functions from the demod init and sleep functions. Functionality remains still almost the same. Signed-off-by:
Antti Palosaari <crope@iki.fi> Signed-off-by:
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Gordon Hecker authored
The i2c failures were caused by enabling both i2c gates at the same time while putting the tuners asleep. This patch removes the init() and sleep() callbacks from the tuner, to prevent frontend.c from calling i2c_gate_ctrl tuner init / sleep i2c_gate_ctrl without holding the lock. tuner init() and sleep() are instead called in frontend init() and sleep(). Signed-off-by:
Gordon Hecker <ghecker@gmx.de> Signed-off-by:
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Jean Delvare authored
Reported by kmemleak. Signed-off-by:
Jean Delvare <khali@linux-fr.org> Cc: Mauro Carvalho Chehab <mchehab@infradead.org> Cc: Devin Heitmueller <dheitmueller@kernellabs.com> Signed-off-by:
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Jean Delvare authored
struct dvb_usb_device *d can never be NULL so don't waste time checking for this. Rationale: the urb's context is set when usb_fill_bulk_urb() is called in dib0700_rc_setup(), and never changes after that. d is dereferenced unconditionally in dib0700_rc_setup() so it can't be NULL or the driver would crash right away. Signed-off-by:
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Ezequiel García authored
This patch saves 255 bytes of stack on usb_probe() by removing a char array. In some platforms this is represents a substantial save. Signed-off-by:
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Michael Krufky authored
The au8522 driver programs the tuner after programming the demodulator, but the tuner should be programmed first. This patch fixes this behavior. EDIT: Apparantly Devin created a similar patch some time ago, but hasn't submitted it for merge. I never saw his patch, but I thank him anyhow for his efforts. In addition, Devin pointed out a flaw in my patch: This newly generated patch takes Devin's comments into account. Thanks-to: Devin Heitmueller <dheitmueller@kernellabs.com> Signed-off-by:
Michael Krufky <mkrufky@linuxtv.org> Cc: stable@kernel.org Signed-off-by:
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Jarod Wilson authored
Yet another device ID that has started showing up in the wild. Signed-off-by:
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Laurent Pinchart authored
Media-related drivers living outside drivers/media/ (such as the UVC gadget driver in drivers/usb/gadget/) rely on the media core being initialized before they're probed. As drivers/usb/ is linked before drivers/media/, this is currently not the case and will lead to crashes if the drivers are not compiled as modules. Register media_devnode_init() as a subsys_initcall() instead of module_init() to fix this. Signed-off-by:
Laurent Pinchart <laurent.pinchart@ideasonboard.com> Acked-by:
Bhupesh Sharma <bhupesh.sharma@st.com> Acked-by:
Sakari Ailus <sakari.ailus@iki.fi> Tested-by:
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Bhupesh Sharma authored
As the V4L2 based UVC webcam gadget (g_webcam) expects the 'videodev' to present when the 'webcam_bind' routine is called, so 'videodev' should be available as early as possible. Now, when 'g_webcam' is built as a module (i.e. not a part of kernel) the late availability of 'videodev' is OK, but if 'g_webcam' is built statically as a part of the kernel, the kernel crashes (a sample crash dump using Designware 2.0 UDC is provided below). To solve the same, this patch makes 'videodev_init' as a subsys initcall. Kernel Crash Dump: ------------------ designware_udc designware_udc: Device Synopsys UDC probed csr 90810000: plug 90812000 g_webcam gadget: uvc_function_bind Unable to handle kernel NULL pointer dereference at virtual address 000000e4 pgd = 80004000 [000000e4] *pgd=00000000 Internal error: Oops: 5 [#1] SMP Modules linked in: CPU: 0 Not tainted (3.3.0-rc3-13888-ge774c03-dirty #20) PC is at do_raw_spin_lock+0x10/0x16c LR is at _raw_spin_lock+0x10/0x14 pc : [<8019e344>] lr : [<804095c0>] psr: 60000013 sp : 8f839d20 ip : 8f839d50 fp : 8f839d4c r10: 80760a94 r9 : 8042de98 r8 : 00000154 r7 : 80760e94 r6 : 805cfc10 r5 : 8fb6a008 r4 : 8fb6a008 r3 : 805dd0c8 r2 : 8f839d48 r1 : 805cfc08 r0 : 000000e0 Flags: nZCv IRQs on FIQs on Mode SVC_32 ISA ARM Segment kernel Control: 10c5387d Table: 0000404a DAC: 00000015 Process swapper/0 (pid: 1, stack limit = 0x8f8382f0) Stack: (0x8f839d20 to 0x8f83a000) 9d20: ffffffff ffffffff 8fb6a008 8fb6a008 805cfc10 80760e94 00000154 8042de98 9d40: 8f839d5c 8f839d50 804095c0 8019e340 8f839d7c 8f839d60 80222b28 804095bc 9d60: 8fb12b80 8fb6a008 8fb6a010 805cfc08 8f839dc4 8f839d80 80223db8 80222adc 9d80: 8f839dac 8f839d90 8022baa0 8019e2e8 8fb6a008 8075e7f4 8fb6a008 8fb6a008 9da0: 00000000 8fb6a008 80760e94 00000154 8042de98 80760a94 8f839ddc 8f839dc8 9dc0: 802242a8 80223d1c 8fb12b80 8fb6a000 8f839e1c 8f839de0 8030132c 80224298 9de0: 80223ce8 803f2ee8 00000001 804f7750 8f839e1c 8f824008 805cff20 8f824000 9e00: 8fb6a000 ffffffff 00000000 8f8d4880 8f839e4c 8f839e20 80562e3c 80301100 9e20: 00000000 8fb13140 8f824008 805cff20 8042aa68 8f824000 8042aa8c 805e4d40 9e40: 8f839e64 8f839e50 802d20c4 80562ba8 805d0058 805cff20 8f839e8c 8f839e68 9e60: 80563034 802d206c 8042aa8c 805cff20 8f8d4880 00000000 805cfc08 8fb12a40 9e80: 8f839e9c 8f839e90 805630c4 80562ec4 8f839ebc 8f839ea0 802d2364 805630b0 9ea0: 805cfeac 8f8d4880 805cfbe8 807605e8 8f839ed4 8f839ec0 80562b3c 802d22cc 9ec0: 80562ac4 8f8d4880 8f839f04 8f839ed8 802d0b40 80562ad0 8f839ef4 805cff90 9ee0: 805cff90 805cfb98 00000000 00000000 805cfbe8 805e4d40 8f839f3c 8f839f08 9f00: 802cd078 802d0a18 00000000 802d0a0c 00000000 8fb9ba00 802d0a0c 805cff90 9f20: 00000013 00000000 00000000 805e4d40 8f839f5c 8f839f40 802cf390 802ccff0 9f40: 00000003 00000003 804fb598 00000000 8f839f74 8f839f60 802d2554 802cf2a0 9f60: 8f838000 8057731c 8f839f84 8f839f78 80562b90 802d24d0 8f839fdc 8f839f88 9f80: 800085d4 80562b84 805af2ac 805af2ac 80562b78 00000000 00000013 00000000 9fa0: 00000000 00000000 8f839fc4 8f839fb8 80043dd0 8057706c 8057731c 8002875c 9fc0: 00000013 00000000 00000000 00000000 8f839ff4 8f839fe0 805468d4 800085a0 9fe0: 00000000 80546840 00000000 8f839ff8 8002875c 8054684c 51155555 55545555 Backtrace: [<8019e334>] (do_raw_spin_lock+0x0/0x16c) from [<804095c0>] (_raw_spin_lock+0x10/0x14) r9:8042de98 r8:00000154 r7:80760e94 r6:805cfc10 r5:8fb6a008 r4:8fb6a008 [<804095b0>] (_raw_spin_lock+0x0/0x14) from [<80222b28>] (get_device_parent+0x58/0x1c0) [<80222ad0>] (get_device_parent+0x0/0x1c0) from [<80223db8>] (device_add+0xa8/0x57c) r6:805cfc08 r5:8fb6a010 r4:8fb6a008 r3:8fb12b80 [<80223d10>] (device_add+0x0/0x57c) from [<802242a8>] (device_register+0x1c/0x20) [<8022428c>] (device_register+0x0/0x20) from [<8030132c>] (__video_register_device+0x238/0x484) r4:8fb6a000 r3:8fb12b80 [<803010f4>] (__video_register_device+0x0/0x484) from [<80562e3c>] (uvc_function_bind+0x2a0/0x31c) [<80562b9c>] (uvc_function_bind+0x0/0x31c) from [<802d20c4>] (usb_add_function+0x64/0x118) [<802d2060>] (usb_add_function+0x0/0x118) from [<80563034>] (uvc_bind_config+0x17c/0x1ec) r5:805cff20 r4:805d0058 [<80562eb8>] (uvc_bind_config+0x0/0x1ec) from [<805630c4>] (webcam_config_bind+0x20/0x28) r8:8fb12a40 r7:805cfc08 r6:00000000 r5:8f8d4880 r4:805cff20 r3:8042aa8c [<805630a4>] (webcam_config_bind+0x0/0x28) from [<802d2364>] (usb_add_config+0xa4/0x124) [<802d22c0>] (usb_add_config+0x0/0x124) from [<80562b3c>] (webcam_bind+0x78/0xb4) r6:807605e8 r5:805cfbe8 r4:8f8d4880 r3:805cfeac [<80562ac4>] (webcam_bind+0x0/0xb4) from [<802d0b40>] (composite_bind+0x134/0x308) r4:8f8d4880 r3:80562ac4 [<802d0a0c>] (composite_bind+0x0/0x308) from [<802cd078>] (dw_udc_start+0x94/0x2bc) [<802ccfe4>] (dw_udc_start+0x0/0x2bc) from [<802cf390>] (usb_gadget_probe_driver+0xfc/0x180) [<802cf294>] (usb_gadget_probe_driver+0x0/0x180) from [<802d2554>] (usb_composite_probe+0x90/0xb4) r6:00000000 r5:804fb598 r4:00000003 r3:00000003 [<802d24c4>] (usb_composite_probe+0x0/0xb4) from [<80562b90>] (webcam_init+0x18/0x24) r5:8057731c r4:8f838000 [<80562b78>] (webcam_init+0x0/0x24) from [<800085d4>] (do_one_initcall+0x40/0x184) [<80008594>] (do_one_initcall+0x0/0x184) from [<805468d4>] (kernel_init+0x94/0x134) [<80546840>] (kernel_init+0x0/0x134) from [<8002875c>] (do_exit+0x0/0x6f8) r5:80546840 r4:00000000 Code: e1a0c00d e92ddbf0 e24cb004 e24dd008 (e5902004) ---[ end trace 7ecca37f36fbdc06 ]--- Signed-off-by:
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Martin Hostettler authored
The MT9M032 is a parallel 1.6MP sensor from Micron controlled through I2C. The driver creates a V4L2 subdevice. It currently supports cropping, gain, exposure and v/h flipping controls in monochrome mode with an external pixel clock. [Lots of clean up, fixes and enhancements] Signed-off-by:
Martin Hostettler <martin@neutronstar.dyndns.org> Signed-off-by:
Sylwester Nawrocki <s.nawrocki@samsung.com> Acked-by:
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Laurent Pinchart authored
Compute the PLL parameters at runtime using the generic Aptina PLL helper. Signed-off-by:
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Laurent Pinchart authored
Add a generic helper function to compute PLL parameters for PLL found in several Aptina sensors. Signed-off-by:
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Laurent Pinchart authored
The fields are set but never used, remove them. Signed-off-by:
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Akihiro Tsukada authored
PT1 and PT2 do not have net functions. Signed-off-by:
Akihiro Tsukada <tskd2@yahoo.co.jp> Signed-off-by:
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Akihiro Tsukada authored
Current default value of "nr_tables" option corresponds to the DMA buffer of about 10 to 48 seconds long, which is obviously too much. Signed-off-by:
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Akihiro Tsukada authored
This patch adds a data integrity check using the sequence counter and error flags added by the bridge chip. Signed-off-by:
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Akihiro Tsukada authored
The driver started a kthread to poll the DMA buffers soon after probing, which relsuleted in 1000/sec sleeps and wakeups of the thread doing nothing useful until someone started feeding. This patch changes the creation and destruction of the kthread depending on the number of users. Signed-off-by:
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Ezequiel García authored
These arrays were embedded in the struct itself, but they weren't used by anyone, since urbs are now dinamically allocated at em28xx_usb_isoc_ctl struct. Tested by compilation only. Signed-off-by:
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Dan Carpenter authored
There are couple places where we check unsigned values for negative. I changed ->gpin_nr to signed because in gpio_ir_recv_probe() we do: if (pdata->gpio_nr < 0) return -EINVAL; I also change gval to a signed int in gpio_ir_recv_irq() because that's the type that gpio_get_value_cansleep() returns and we test for negative returns. Signed-off-by:Dan Carpenter <dan.carpenter@oracle.com> Reviewed-by:
Trilok Soni <tsoni@codeaurora.org> Signed-off-by:
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Andrew Miller authored
Replaced spaces with tabs Signed-off-by:
Andrew Miller <amiller@amilx.com> Signed-off-by:
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Sylwester Nawrocki authored
Fix following compilation error when CONFIG_PM_SLEEP is disabled: CC drivers/media/video/s5p-fimc/mipi-csis.o drivers/media/video/s5p-fimc/mipi-csis.c: In function ‘s5pcsis_remove’: drivers/media/video/s5p-fimc/mipi-csis.c:956: error: implicit declaration of function ‘s5pcsis_suspend’ Reported-by:
Marek Szyprowski <m.szyprowski@samsung.com> Signed-off-by:
Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by:
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Mauro Carvalho Chehab authored
drivers/media/video/w9966.c: In function ‘__check_pardev’: drivers/media/video/w9966.c:136:1: warning: return from incompatible pointer type [enabled by default] Signed-off-by: -
Fabio Estevam authored
Fix the following build error: LD .tmp_vmlinux1 drivers/built-in.o: In function `mx2_camera_init_videobuf': clkdev.c:(.text+0xcfaf4): undefined reference to `vb2_dma_contig_memops' drivers/built-in.o: In function `mx2_camera_probe': clkdev.c:(.devinit.text+0x5734): undefined reference to `vb2_dma_contig_init_ctx' clkdev.c:(.devinit.text+0x5778): undefined reference to `vb2_dma_contig_cleanup_ctx' drivers/built-in.o: In function `mx2_camera_remove': clkdev.c:(.devexit.text+0x89c): undefined reference to `vb2_dma_contig_cleanup_ctx' commit c6a41e32 ([media] media i.MX27 camera: migrate driver to videobuf2) missed to select VIDEOBUF2_DMA_CONTIG in Kconfig. Signed-off-by:
Fabio Estevam <fabio.estevam@freescale.com> Signed-off-by:
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Sylwester Nawrocki authored
Make the VIDIOC_G/S_SELECTION ioctls documentation more consistent with the rest of media Docbook, use capital letters where necessary and correct few minor errors. Signed-off-by:
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Malcolm Priestley authored
Signed-off-by:
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Scott Jiang authored
This is a v4l2 bridge driver for Blackfin video capture device, support ppi and eppi interface. Signed-off-by:
Scott Jiang <scott.jiang.linux@gmail.com> Signed-off-by:
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Scott Jiang authored
This is a v4l2 sensor-level driver for the ST VS6624 camera. Signed-off-by:
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Scott Jiang authored
This driver is a v4l2 subdevice driver to support Analog Devices ADV7183 SDTV video decoder. Signed-off-by:
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Malcolm Priestley authored
Signed-off-by:
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