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author | Linus Torvalds <torvalds@linux-foundation.org> | 2020-06-04 06:59:38 +0300 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2020-06-04 06:59:38 +0300 |
commit | a98f670e41a99f53acb1fb33cee9c6abbb2e6f23 (patch) | |
tree | f8ae10a4cb91758ad7f9422053753a8c5d0f04dc /drivers/staging/media/atomisp/pci/base/refcount/interface/ia_css_refcount.h | |
parent | ee01c4d72adffb7d424535adf630f2955748fa8b (diff) | |
parent | 938b29db3aa9c293c7c1366b16e55e308f1a1ddd (diff) | |
download | linux-a98f670e41a99f53acb1fb33cee9c6abbb2e6f23.tar.xz |
Merge tag 'media/v5.8-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media
Pull media updates from Mauro Carvalho Chehab:
- Media documentation is now split into admin-guide, driver-api and
userspace-api books (a longstanding request from Jon);
- The media Kconfig was reorganized, in order to make easier to select
drivers and their dependencies;
- The testing drivers now has a separate directory;
- added a new driver for Rockchip Video Decoder IP;
- The atomisp staging driver was resurrected. It is meant to work with
4 generations of cameras on Atom-based laptops, tablets and cell
phones. So, it seems worth investing time to cleanup this driver and
making it in good shape.
- Added some V4L2 core ancillary routines to help with h264 codecs;
- Added an ov2740 image sensor driver;
- The si2157 gained support for Analog TV, which, in turn, added
support for some cx231xx and cx23885 boards to also support analog
standards;
- Added some V4L2 controls (V4L2_CID_CAMERA_ORIENTATION and
V4L2_CID_CAMERA_SENSOR_ROTATION) to help identifying where the camera
is located at the device;
- VIDIOC_ENUM_FMT was extended to support MC-centric devices;
- Lots of drivers improvements and cleanups.
* tag 'media/v5.8-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (503 commits)
media: Documentation: media: Refer to mbus format documentation from CSI-2 docs
media: s5k5baf: Replace zero-length array with flexible-array
media: i2c: imx219: Drop <linux/clk-provider.h> and <linux/clkdev.h>
media: i2c: Add ov2740 image sensor driver
media: ov8856: Implement sensor module revision identification
media: ov8856: Add devicetree support
media: dt-bindings: ov8856: Document YAML bindings
media: dvb-usb: Add Cinergy S2 PCIe Dual Port support
media: dvbdev: Fix tuner->demod media controller link
media: dt-bindings: phy: phy-rockchip-dphy-rx0: move rockchip dphy rx0 bindings out of staging
media: staging: dt-bindings: phy-rockchip-dphy-rx0: remove non-used reg property
media: atomisp: unify the version for isp2401 a0 and b0 versions
media: atomisp: update TODO with the current data
media: atomisp: adjust some code at sh_css that could be broken
media: atomisp: don't produce errs for ignored IRQs
media: atomisp: print IRQ when debugging
media: atomisp: isp_mmu: don't use kmem_cache
media: atomisp: add a notice about possible leak resources
media: atomisp: disable the dynamic and reserved pools
media: atomisp: turn on camera before setting it
...
Diffstat (limited to 'drivers/staging/media/atomisp/pci/base/refcount/interface/ia_css_refcount.h')
-rw-r--r-- | drivers/staging/media/atomisp/pci/base/refcount/interface/ia_css_refcount.h | 83 |
1 files changed, 83 insertions, 0 deletions
diff --git a/drivers/staging/media/atomisp/pci/base/refcount/interface/ia_css_refcount.h b/drivers/staging/media/atomisp/pci/base/refcount/interface/ia_css_refcount.h new file mode 100644 index 000000000000..8cf3b0e0cc39 --- /dev/null +++ b/drivers/staging/media/atomisp/pci/base/refcount/interface/ia_css_refcount.h @@ -0,0 +1,83 @@ +/* + * Support for Intel Camera Imaging ISP subsystem. + * Copyright (c) 2015, Intel Corporation. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms and conditions of the GNU General Public License, + * version 2, as published by the Free Software Foundation. + * + * This program is distributed in the hope it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + */ + +#ifndef _IA_CSS_REFCOUNT_H_ +#define _IA_CSS_REFCOUNT_H_ + +#include <type_support.h> +#include <system_types.h> +#include <ia_css_err.h> + +typedef void (*clear_func)(hrt_vaddress ptr); + +/*! \brief Function for initializing refcount list + * + * \param[in] size Size of the refcount list. + * \return ia_css_err + */ +enum ia_css_err ia_css_refcount_init(uint32_t size); + +/*! \brief Function for de-initializing refcount list + * + * \return None + */ +void ia_css_refcount_uninit(void); + +/*! \brief Function for increasing reference by 1. + * + * \param[in] id ID of the object. + * \param[in] ptr Data of the object (ptr). + * \return hrt_vaddress (saved address) + */ +hrt_vaddress ia_css_refcount_increment(s32 id, hrt_vaddress ptr); + +/*! \brief Function for decrease reference by 1. + * + * \param[in] id ID of the object. + * \param[in] ptr Data of the object (ptr). + * + * - true, if it is successful. + * - false, otherwise. + */ +bool ia_css_refcount_decrement(s32 id, hrt_vaddress ptr); + +/*! \brief Function to check if reference count is 1. + * + * \param[in] ptr Data of the object (ptr). + * + * - true, if it is successful. + * - false, otherwise. + */ +bool ia_css_refcount_is_single(hrt_vaddress ptr); + +/*! \brief Function to clear reference list objects. + * + * \param[in] id ID of the object. + * \param[in] clear_func function to be run to free reference objects. + * + * return None + */ +void ia_css_refcount_clear(s32 id, + clear_func clear_func_ptr); + +/*! \brief Function to verify if object is valid + * + * \param[in] ptr Data of the object (ptr) + * + * - true, if valid + * - false, if invalid + */ +bool ia_css_refcount_is_valid(hrt_vaddress ptr); + +#endif /* _IA_CSS_REFCOUNT_H_ */ |