提交 bd9999cd 编写于 作者: L Linus Torvalds

Merge tag 'media/v4.10-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media

Pull media updates from Mauro Carvalho Chehab:

 - new Mediatek drivers: mtk-mdp and mtk-vcodec

 - some additions at the media documentation

 - the CEC core and drivers were promoted from staging to mainstream

 - some cleanups at the DVB core

 - the LIRC serial driver got promoted from staging to mainstream

 - added a driver for Renesas R-Car FDP1 driver

 - add DVBv5 statistics support to mn88473 driver

 - several fixes related to printk continuation lines

 - add support for HSV encoding formats

 - lots of other cleanups, fixups and driver improvements.

* tag 'media/v4.10-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (496 commits)
  [media] v4l: tvp5150: Add missing break in set control handler
  [media] v4l: tvp5150: Don't inline the tvp5150_selmux() function
  [media] v4l: tvp5150: Compile tvp5150_link_setup out if !CONFIG_MEDIA_CONTROLLER
  [media] em28xx: don't store usb_device at struct em28xx
  [media] em28xx: use usb_interface for dev_foo() calls
  [media] em28xx: don't change the device's name
  [media] mn88472: fix chip id check on probe
  [media] mn88473: fix chip id check on probe
  [media] lirc: fix error paths in lirc_cdev_add()
  [media] s5p-mfc: Add support for MFC v8 available in Exynos 5433 SoCs
  [media] s5p-mfc: Rework clock handling
  [media] s5p-mfc: Don't keep clock prepared all the time
  [media] s5p-mfc: Kill all IS_ERR_OR_NULL in clocks management code
  [media] s5p-mfc: Remove dead conditional code
  [media] s5p-mfc: Ensure that clock is disabled before turning power off
  [media] s5p-mfc: Remove special clock rate management
  [media] s5p-mfc: Use printk_ratelimited for reporting ioctl errors
  [media] s5p-mfc: Set DMA_ATTR_ALLOC_SINGLE_PAGES
  [media] vivid: Set color_enc on HSV formats
  [media] v4l2-tpg: Init hv_enc field with a valid value
  ...
...@@ -3,7 +3,8 @@ ...@@ -3,7 +3,8 @@
G-Scaler is used for scaling and color space conversion on EXYNOS5 SoCs. G-Scaler is used for scaling and color space conversion on EXYNOS5 SoCs.
Required properties: Required properties:
- compatible: should be "samsung,exynos5-gsc" - compatible: should be "samsung,exynos5-gsc" (for Exynos 5250, 5420 and
5422 SoCs) or "samsung,exynos5433-gsc" (Exynos 5433)
- reg: should contain G-Scaler physical address location and length. - reg: should contain G-Scaler physical address location and length.
- interrupts: should contain G-Scaler interrupt number - interrupts: should contain G-Scaler interrupt number
......
...@@ -8,10 +8,11 @@ Required properties: ...@@ -8,10 +8,11 @@ Required properties:
the device. The interrupt specifier format depends on the interrupt the device. The interrupt specifier format depends on the interrupt
controller parent. controller parent.
- clocks: clock phandle and specifier pair. - clocks: clock phandle and specifier pair.
- hisilicon,power-syscon: phandle of syscon used to control power.
Optional properties: Optional properties:
- linux,rc-map-name : Remote control map name. - linux,rc-map-name : Remote control map name.
- hisilicon,power-syscon: DEPRECATED. Don't use this in new dts files.
Provide correct clocks instead.
Example node: Example node:
...@@ -19,7 +20,6 @@ Example node: ...@@ -19,7 +20,6 @@ Example node:
compatible = "hisilicon,hix5hd2-ir"; compatible = "hisilicon,hix5hd2-ir";
reg = <0xf8001000 0x1000>; reg = <0xf8001000 0x1000>;
interrupts = <0 47 4>; interrupts = <0 47 4>;
clocks = <&clock HIX5HD2_FIXED_24M>; clocks = <&clock HIX5HD2_IR_CLOCK>;
hisilicon,power-syscon = <&sysctrl>;
linux,rc-map-name = "rc-tivo"; linux,rc-map-name = "rc-tivo";
}; };
...@@ -34,6 +34,7 @@ The digital output port node must contain at least one endpoint. ...@@ -34,6 +34,7 @@ The digital output port node must contain at least one endpoint.
Optional Properties: Optional Properties:
- reset-gpios: Reference to the GPIO connected to the device's reset pin. - reset-gpios: Reference to the GPIO connected to the device's reset pin.
- default-input: Select which input is selected after reset.
Optional Endpoint Properties: Optional Endpoint Properties:
...@@ -47,8 +48,6 @@ Optional Endpoint Properties: ...@@ -47,8 +48,6 @@ Optional Endpoint Properties:
If none of hsync-active, vsync-active and pclk-sample is specified the If none of hsync-active, vsync-active and pclk-sample is specified the
endpoint will use embedded BT.656 synchronization. endpoint will use embedded BT.656 synchronization.
- default-input: Select which input is selected after reset.
Example: Example:
hdmi_receiver@4c { hdmi_receiver@4c {
......
* Mediatek Media Data Path
Media Data Path is used for scaling and color space conversion.
Required properties (controller (parent) node):
- compatible: "mediatek,mt8173-mdp"
- mediatek,vpu: the node of video processor unit, see
Documentation/devicetree/bindings/media/mediatek-vpu.txt for details.
Required properties (all function blocks, child node):
- compatible: Should be one of
"mediatek,mt8173-mdp-rdma" - read DMA
"mediatek,mt8173-mdp-rsz" - resizer
"mediatek,mt8173-mdp-wdma" - write DMA
"mediatek,mt8173-mdp-wrot" - write DMA with rotation
- reg: Physical base address and length of the function block register space
- clocks: device clocks, see
Documentation/devicetree/bindings/clock/clock-bindings.txt for details.
- power-domains: a phandle to the power domain, see
Documentation/devicetree/bindings/power/power_domain.txt for details.
Required properties (DMA function blocks, child node):
- compatible: Should be one of
"mediatek,mt8173-mdp-rdma"
"mediatek,mt8173-mdp-wdma"
"mediatek,mt8173-mdp-wrot"
- iommus: should point to the respective IOMMU block with master port as
argument, see Documentation/devicetree/bindings/iommu/mediatek,iommu.txt
for details.
- mediatek,larb: must contain the local arbiters in the current Socs, see
Documentation/devicetree/bindings/memory-controllers/mediatek,smi-larb.txt
for details.
Example:
mdp {
compatible = "mediatek,mt8173-mdp";
#address-cells = <2>;
#size-cells = <2>;
ranges;
mediatek,vpu = <&vpu>;
mdp_rdma0: rdma@14001000 {
compatible = "mediatek,mt8173-mdp-rdma";
reg = <0 0x14001000 0 0x1000>;
clocks = <&mmsys CLK_MM_MDP_RDMA0>,
<&mmsys CLK_MM_MUTEX_32K>;
power-domains = <&scpsys MT8173_POWER_DOMAIN_MM>;
iommus = <&iommu M4U_PORT_MDP_RDMA0>;
mediatek,larb = <&larb0>;
};
mdp_rdma1: rdma@14002000 {
compatible = "mediatek,mt8173-mdp-rdma";
reg = <0 0x14002000 0 0x1000>;
clocks = <&mmsys CLK_MM_MDP_RDMA1>,
<&mmsys CLK_MM_MUTEX_32K>;
power-domains = <&scpsys MT8173_POWER_DOMAIN_MM>;
iommus = <&iommu M4U_PORT_MDP_RDMA1>;
mediatek,larb = <&larb4>;
};
mdp_rsz0: rsz@14003000 {
compatible = "mediatek,mt8173-mdp-rsz";
reg = <0 0x14003000 0 0x1000>;
clocks = <&mmsys CLK_MM_MDP_RSZ0>;
power-domains = <&scpsys MT8173_POWER_DOMAIN_MM>;
};
mdp_rsz1: rsz@14004000 {
compatible = "mediatek,mt8173-mdp-rsz";
reg = <0 0x14004000 0 0x1000>;
clocks = <&mmsys CLK_MM_MDP_RSZ1>;
power-domains = <&scpsys MT8173_POWER_DOMAIN_MM>;
};
mdp_rsz2: rsz@14005000 {
compatible = "mediatek,mt8173-mdp-rsz";
reg = <0 0x14005000 0 0x1000>;
clocks = <&mmsys CLK_MM_MDP_RSZ2>;
power-domains = <&scpsys MT8173_POWER_DOMAIN_MM>;
};
mdp_wdma0: wdma@14006000 {
compatible = "mediatek,mt8173-mdp-wdma";
reg = <0 0x14006000 0 0x1000>;
clocks = <&mmsys CLK_MM_MDP_WDMA>;
power-domains = <&scpsys MT8173_POWER_DOMAIN_MM>;
iommus = <&iommu M4U_PORT_MDP_WDMA>;
mediatek,larb = <&larb0>;
};
mdp_wrot0: wrot@14007000 {
compatible = "mediatek,mt8173-mdp-wrot";
reg = <0 0x14007000 0 0x1000>;
clocks = <&mmsys CLK_MM_MDP_WROT0>;
power-domains = <&scpsys MT8173_POWER_DOMAIN_MM>;
iommus = <&iommu M4U_PORT_MDP_WROT0>;
mediatek,larb = <&larb0>;
};
mdp_wrot1: wrot@14008000 {
compatible = "mediatek,mt8173-mdp-wrot";
reg = <0 0x14008000 0 0x1000>;
clocks = <&mmsys CLK_MM_MDP_WROT1>;
power-domains = <&scpsys MT8173_POWER_DOMAIN_MM>;
iommus = <&iommu M4U_PORT_MDP_WROT1>;
mediatek,larb = <&larb4>;
};
};
Mediatek Video Codec Mediatek Video Codec
Mediatek Video Codec is the video codec hw present in Mediatek SoCs which Mediatek Video Codec is the video codec hw present in Mediatek SoCs which
supports high resolution encoding functionalities. supports high resolution encoding and decoding functionalities.
Required properties: Required properties:
- compatible : "mediatek,mt8173-vcodec-enc" for encoder - compatible : "mediatek,mt8173-vcodec-enc" for encoder
"mediatek,mt8173-vcodec-dec" for decoder.
- reg : Physical base address of the video codec registers and length of - reg : Physical base address of the video codec registers and length of
memory mapped region. memory mapped region.
- interrupts : interrupt number to the cpu. - interrupts : interrupt number to the cpu.
- mediatek,larb : must contain the local arbiters in the current Socs. - mediatek,larb : must contain the local arbiters in the current Socs.
- clocks : list of clock specifiers, corresponding to entries in - clocks : list of clock specifiers, corresponding to entries in
the clock-names property. the clock-names property.
- clock-names: encoder must contain "venc_sel_src", "venc_sel", - clock-names: encoder must contain "venc_sel_src", "venc_sel",,
- "venc_lt_sel_src", "venc_lt_sel". "venc_lt_sel_src", "venc_lt_sel", decoder must contain "vcodecpll",
"univpll_d2", "clk_cci400_sel", "vdec_sel", "vdecpll", "vencpll",
"venc_lt_sel", "vdec_bus_clk_src".
- iommus : should point to the respective IOMMU block with master port as - iommus : should point to the respective IOMMU block with master port as
argument, see Documentation/devicetree/bindings/iommu/mediatek,iommu.txt argument, see Documentation/devicetree/bindings/iommu/mediatek,iommu.txt
for details. for details.
- mediatek,vpu : the node of video processor unit - mediatek,vpu : the node of video processor unit
Example: Example:
vcodec_enc: vcodec@0x18002000 {
vcodec_dec: vcodec@16000000 {
compatible = "mediatek,mt8173-vcodec-dec";
reg = <0 0x16000000 0 0x100>, /*VDEC_SYS*/
<0 0x16020000 0 0x1000>, /*VDEC_MISC*/
<0 0x16021000 0 0x800>, /*VDEC_LD*/
<0 0x16021800 0 0x800>, /*VDEC_TOP*/
<0 0x16022000 0 0x1000>, /*VDEC_CM*/
<0 0x16023000 0 0x1000>, /*VDEC_AD*/
<0 0x16024000 0 0x1000>, /*VDEC_AV*/
<0 0x16025000 0 0x1000>, /*VDEC_PP*/
<0 0x16026800 0 0x800>, /*VP8_VD*/
<0 0x16027000 0 0x800>, /*VP6_VD*/
<0 0x16027800 0 0x800>, /*VP8_VL*/
<0 0x16028400 0 0x400>; /*VP9_VD*/
interrupts = <GIC_SPI 204 IRQ_TYPE_LEVEL_LOW>;
mediatek,larb = <&larb1>;
iommus = <&iommu M4U_PORT_HW_VDEC_MC_EXT>,
<&iommu M4U_PORT_HW_VDEC_PP_EXT>,
<&iommu M4U_PORT_HW_VDEC_AVC_MV_EXT>,
<&iommu M4U_PORT_HW_VDEC_PRED_RD_EXT>,
<&iommu M4U_PORT_HW_VDEC_PRED_WR_EXT>,
<&iommu M4U_PORT_HW_VDEC_UFO_EXT>,
<&iommu M4U_PORT_HW_VDEC_VLD_EXT>,
<&iommu M4U_PORT_HW_VDEC_VLD2_EXT>;
mediatek,vpu = <&vpu>;
power-domains = <&scpsys MT8173_POWER_DOMAIN_VDEC>;
clocks = <&apmixedsys CLK_APMIXED_VCODECPLL>,
<&topckgen CLK_TOP_UNIVPLL_D2>,
<&topckgen CLK_TOP_CCI400_SEL>,
<&topckgen CLK_TOP_VDEC_SEL>,
<&topckgen CLK_TOP_VCODECPLL>,
<&apmixedsys CLK_APMIXED_VENCPLL>,
<&topckgen CLK_TOP_VENC_LT_SEL>,
<&topckgen CLK_TOP_VCODECPLL_370P5>;
clock-names = "vcodecpll",
"univpll_d2",
"clk_cci400_sel",
"vdec_sel",
"vdecpll",
"vencpll",
"venc_lt_sel",
"vdec_bus_clk_src";
};
vcodec_enc: vcodec@0x18002000 {
compatible = "mediatek,mt8173-vcodec-enc"; compatible = "mediatek,mt8173-vcodec-enc";
reg = <0 0x18002000 0 0x1000>, /*VENC_SYS*/ reg = <0 0x18002000 0 0x1000>, /*VENC_SYS*/
<0 0x19002000 0 0x1000>; /*VENC_LT_SYS*/ <0 0x19002000 0 0x1000>; /*VENC_LT_SYS*/
......
Renesas R-Car Fine Display Processor (FDP1)
-------------------------------------------
The FDP1 is a de-interlacing module which converts interlaced video to
progressive video. It is capable of performing pixel format conversion between
YCbCr/YUV formats and RGB formats. Only YCbCr/YUV formats are supported as
an input to the module.
Required properties:
- compatible: must be "renesas,fdp1"
- reg: the register base and size for the device registers
- interrupts : interrupt specifier for the FDP1 instance
- clocks: reference to the functional clock
Optional properties:
- power-domains: reference to the power domain that the FDP1 belongs to, if
any.
- renesas,fcp: a phandle referencing the FCP that handles memory accesses
for the FDP1. Not needed on Gen2, mandatory on Gen3.
Please refer to the binding documentation for the clock and/or power domain
providers for more details.
Device node example
-------------------
fdp1@fe940000 {
compatible = "renesas,fdp1";
reg = <0 0xfe940000 0 0x2400>;
interrupts = <GIC_SPI 262 IRQ_TYPE_LEVEL_HIGH>;
clocks = <&cpg CPG_MOD 119>;
power-domains = <&sysc R8A7795_PD_A3VP>;
renesas,fcp = <&fcpf0>;
};
...@@ -12,6 +12,7 @@ Required properties: ...@@ -12,6 +12,7 @@ Required properties:
(b) "samsung,mfc-v6" for MFC v6 present in Exynos5 SoCs (b) "samsung,mfc-v6" for MFC v6 present in Exynos5 SoCs
(c) "samsung,mfc-v7" for MFC v7 present in Exynos5420 SoC (c) "samsung,mfc-v7" for MFC v7 present in Exynos5420 SoC
(d) "samsung,mfc-v8" for MFC v8 present in Exynos5800 SoC (d) "samsung,mfc-v8" for MFC v8 present in Exynos5800 SoC
(e) "samsung,exynos5433-mfc" for MFC v8 present in Exynos5433 SoC
- reg : Physical base address of the IP registers and length of memory - reg : Physical base address of the IP registers and length of memory
mapped region. mapped region.
......
...@@ -88,7 +88,7 @@ $(BUILDDIR)/videodev2.h.rst: ${UAPI}/videodev2.h ${PARSER} $(SRC_DIR)/videodev2. ...@@ -88,7 +88,7 @@ $(BUILDDIR)/videodev2.h.rst: ${UAPI}/videodev2.h ${PARSER} $(SRC_DIR)/videodev2.
$(BUILDDIR)/media.h.rst: ${UAPI}/media.h ${PARSER} $(SRC_DIR)/media.h.rst.exceptions $(BUILDDIR)/media.h.rst: ${UAPI}/media.h ${PARSER} $(SRC_DIR)/media.h.rst.exceptions
@$($(quiet)gen_rst) @$($(quiet)gen_rst)
$(BUILDDIR)/cec.h.rst: ${KAPI}/cec.h ${PARSER} $(SRC_DIR)/cec.h.rst.exceptions $(BUILDDIR)/cec.h.rst: ${UAPI}/cec.h ${PARSER} $(SRC_DIR)/cec.h.rst.exceptions
@$($(quiet)gen_rst) @$($(quiet)gen_rst)
$(BUILDDIR)/lirc.h.rst: ${UAPI}/lirc.h ${PARSER} $(SRC_DIR)/lirc.h.rst.exceptions $(BUILDDIR)/lirc.h.rst: ${UAPI}/lirc.h ${PARSER} $(SRC_DIR)/lirc.h.rst.exceptions
......
...@@ -37,9 +37,8 @@ The struct cec_adapter represents the CEC adapter hardware. It is created by ...@@ -37,9 +37,8 @@ The struct cec_adapter represents the CEC adapter hardware. It is created by
calling cec_allocate_adapter() and deleted by calling cec_delete_adapter(): calling cec_allocate_adapter() and deleted by calling cec_delete_adapter():
.. c:function:: .. c:function::
struct cec_adapter *cec_allocate_adapter(const struct cec_adap_ops *ops, struct cec_adapter *cec_allocate_adapter(const struct cec_adap_ops *ops, void *priv,
void *priv, const char *name, u32 caps, u8 available_las, const char *name, u32 caps, u8 available_las);
struct device *parent);
.. c:function:: .. c:function::
void cec_delete_adapter(struct cec_adapter *adap); void cec_delete_adapter(struct cec_adapter *adap);
...@@ -66,20 +65,19 @@ available_las: ...@@ -66,20 +65,19 @@ available_las:
the number of simultaneous logical addresses that this the number of simultaneous logical addresses that this
adapter can handle. Must be 1 <= available_las <= CEC_MAX_LOG_ADDRS. adapter can handle. Must be 1 <= available_las <= CEC_MAX_LOG_ADDRS.
parent:
the parent device.
To register the /dev/cecX device node and the remote control device (if To register the /dev/cecX device node and the remote control device (if
CEC_CAP_RC is set) you call: CEC_CAP_RC is set) you call:
.. c:function:: .. c:function::
int cec_register_adapter(struct cec_adapter \*adap); int cec_register_adapter(struct cec_adapter *adap, struct device *parent);
where parent is the parent device.
To unregister the devices call: To unregister the devices call:
.. c:function:: .. c:function::
void cec_unregister_adapter(struct cec_adapter \*adap); void cec_unregister_adapter(struct cec_adapter *adap);
Note: if cec_register_adapter() fails, then call cec_delete_adapter() to Note: if cec_register_adapter() fails, then call cec_delete_adapter() to
clean up. But if cec_register_adapter() succeeded, then only call clean up. But if cec_register_adapter() succeeded, then only call
...@@ -106,13 +104,13 @@ your driver: ...@@ -106,13 +104,13 @@ your driver:
int (*adap_log_addr)(struct cec_adapter *adap, u8 logical_addr); int (*adap_log_addr)(struct cec_adapter *adap, u8 logical_addr);
int (*adap_transmit)(struct cec_adapter *adap, u8 attempts, int (*adap_transmit)(struct cec_adapter *adap, u8 attempts,
u32 signal_free_time, struct cec_msg *msg); u32 signal_free_time, struct cec_msg *msg);
void (\*adap_log_status)(struct cec_adapter *adap); void (*adap_status)(struct cec_adapter *adap, struct seq_file *file);
/* High-level callbacks */ /* High-level callbacks */
... ...
}; };
The three low-level ops deal with various aspects of controlling the CEC adapter The five low-level ops deal with various aspects of controlling the CEC adapter
hardware: hardware:
...@@ -238,6 +236,18 @@ When a CEC message was received: ...@@ -238,6 +236,18 @@ When a CEC message was received:
Speaks for itself. Speaks for itself.
Implementing the interrupt handler
----------------------------------
Typically the CEC hardware provides interrupts that signal when a transmit
finished and whether it was successful or not, and it provides and interrupt
when a CEC message was received.
The CEC driver should always process the transmit interrupts first before
handling the receive interrupt. The framework expects to see the cec_transmit_done
call before the cec_received_msg call, otherwise it can get confused if the
received message was in reply to the transmitted message.
Implementing the High-Level CEC Adapter Implementing the High-Level CEC Adapter
--------------------------------------- ---------------------------------------
...@@ -247,11 +257,11 @@ CEC protocol driven. The following high-level callbacks are available: ...@@ -247,11 +257,11 @@ CEC protocol driven. The following high-level callbacks are available:
.. code-block:: none .. code-block:: none
struct cec_adap_ops { struct cec_adap_ops {
/\* Low-level callbacks \*/ /* Low-level callbacks */
... ...
/\* High-level CEC message callback \*/ /* High-level CEC message callback */
int (\*received)(struct cec_adapter \*adap, struct cec_msg \*msg); int (*received)(struct cec_adapter *adap, struct cec_msg *msg);
}; };
The received() callback allows the driver to optionally handle a newly The received() callback allows the driver to optionally handle a newly
...@@ -263,7 +273,7 @@ received CEC message ...@@ -263,7 +273,7 @@ received CEC message
If the driver wants to process a CEC message, then it can implement this If the driver wants to process a CEC message, then it can implement this
callback. If it doesn't want to handle this message, then it should return callback. If it doesn't want to handle this message, then it should return
-ENOMSG, otherwise the CEC framework assumes it processed this message and -ENOMSG, otherwise the CEC framework assumes it processed this message and
it will not no anything with it. it will not do anything with it.
CEC framework functions CEC framework functions
......
MIPI CSI-2
==========
CSI-2 is a data bus intended for transferring images from cameras to
the host SoC. It is defined by the `MIPI alliance`_.
.. _`MIPI alliance`: http://www.mipi.org/
Transmitter drivers
-------------------
CSI-2 transmitter, such as a sensor or a TV tuner, drivers need to
provide the CSI-2 receiver with information on the CSI-2 bus
configuration. These include the V4L2_CID_LINK_FREQ and
V4L2_CID_PIXEL_RATE controls and
(:c:type:`v4l2_subdev_video_ops`->s_stream() callback). These
interface elements must be present on the sub-device represents the
CSI-2 transmitter.
The V4L2_CID_LINK_FREQ control is used to tell the receiver driver the
frequency (and not the symbol rate) of the link. The
V4L2_CID_PIXEL_RATE is may be used by the receiver to obtain the pixel
rate the transmitter uses. The
:c:type:`v4l2_subdev_video_ops`->s_stream() callback provides an
ability to start and stop the stream.
The value of the V4L2_CID_PIXEL_RATE is calculated as follows::
pixel_rate = link_freq * 2 * nr_of_lanes / bits_per_sample
where
.. list-table:: variables in pixel rate calculation
:header-rows: 1
* - variable or constant
- description
* - link_freq
- The value of the V4L2_CID_LINK_FREQ integer64 menu item.
* - nr_of_lanes
- Number of data lanes used on the CSI-2 link. This can
be obtained from the OF endpoint configuration.
* - 2
- Two bits are transferred per clock cycle per lane.
* - bits_per_sample
- Number of bits per sample.
The transmitter drivers must configure the CSI-2 transmitter to *LP-11
mode* whenever the transmitter is powered on but not active. Some
transmitters do this automatically but some have to be explicitly
programmed to do so.
Receiver drivers
----------------
Before the receiver driver may enable the CSI-2 transmitter by using
the :c:type:`v4l2_subdev_video_ops`->s_stream(), it must have powered
the transmitter up by using the
:c:type:`v4l2_subdev_core_ops`->s_power() callback. This may take
place either indirectly by using :c:func:`v4l2_pipeline_pm_use` or
directly.
...@@ -8,14 +8,6 @@ Digital TV Common functions ...@@ -8,14 +8,6 @@ Digital TV Common functions
.. kernel-doc:: drivers/media/dvb-core/dvbdev.h .. kernel-doc:: drivers/media/dvb-core/dvbdev.h
.. kernel-doc:: drivers/media/dvb-core/dvb_math.h
:export: drivers/media/dvb-core/dvb_math.c
.. kernel-doc:: drivers/media/dvb-core/dvbdev.h
:export: drivers/media/dvb-core/dvbdev.c
Digital TV Ring buffer Digital TV Ring buffer
---------------------- ----------------------
......
...@@ -33,3 +33,4 @@ For more details see the file COPYING in the source distribution of Linux. ...@@ -33,3 +33,4 @@ For more details see the file COPYING in the source distribution of Linux.
kapi/rc-core kapi/rc-core
kapi/mc-core kapi/mc-core
kapi/cec-core kapi/cec-core
kapi/csi2
...@@ -48,41 +48,21 @@ returns the information to the application. The ioctl never fails. ...@@ -48,41 +48,21 @@ returns the information to the application. The ioctl never fails.
:stub-columns: 0 :stub-columns: 0
:widths: 1 1 16 :widths: 1 1 16
* - char
- .. row 1 - ``driver[32]``
- The name of the cec adapter driver.
- char * - char
- ``name[32]``
- ``driver[32]`` - The name of this CEC adapter. The combination ``driver`` and
``name`` must be unique.
- The name of the cec adapter driver. * - __u32
- ``capabilities``
- .. row 2 - The capabilities of the CEC adapter, see
:ref:`cec-capabilities`.
- char * - __u32
- ``version``
- ``name[32]`` - CEC Framework API version, formatted with the ``KERNEL_VERSION()``
macro.
- The name of this CEC adapter. The combination ``driver`` and
``name`` must be unique.
- .. row 3
- __u32
- ``capabilities``
- The capabilities of the CEC adapter, see
:ref:`cec-capabilities`.
- .. row 4
- __u32
- ``version``
- CEC Framework API version, formatted with the ``KERNEL_VERSION()``
macro.
.. tabularcolumns:: |p{4.4cm}|p{2.5cm}|p{10.6cm}| .. tabularcolumns:: |p{4.4cm}|p{2.5cm}|p{10.6cm}|
...@@ -94,68 +74,50 @@ returns the information to the application. The ioctl never fails. ...@@ -94,68 +74,50 @@ returns the information to the application. The ioctl never fails.
:stub-columns: 0 :stub-columns: 0
:widths: 3 1 8 :widths: 3 1 8
* .. _`CEC-CAP-PHYS-ADDR`:
- .. _`CEC-CAP-PHYS-ADDR`:
- ``CEC_CAP_PHYS_ADDR``
- ``CEC_CAP_PHYS_ADDR`` - 0x00000001
- Userspace has to configure the physical address by calling
- 0x00000001 :ref:`ioctl CEC_ADAP_S_PHYS_ADDR <CEC_ADAP_S_PHYS_ADDR>`. If
this capability isn't set, then setting the physical address is
- Userspace has to configure the physical address by calling handled by the kernel whenever the EDID is set (for an HDMI
:ref:`ioctl CEC_ADAP_S_PHYS_ADDR <CEC_ADAP_S_PHYS_ADDR>`. If receiver) or read (for an HDMI transmitter).
this capability isn't set, then setting the physical address is * .. _`CEC-CAP-LOG-ADDRS`:
handled by the kernel whenever the EDID is set (for an HDMI
receiver) or read (for an HDMI transmitter). - ``CEC_CAP_LOG_ADDRS``
- 0x00000002
- .. _`CEC-CAP-LOG-ADDRS`: - Userspace has to configure the logical addresses by calling
:ref:`ioctl CEC_ADAP_S_LOG_ADDRS <CEC_ADAP_S_LOG_ADDRS>`. If
- ``CEC_CAP_LOG_ADDRS`` this capability isn't set, then the kernel will have configured
this.
- 0x00000002 * .. _`CEC-CAP-TRANSMIT`:
- Userspace has to configure the logical addresses by calling - ``CEC_CAP_TRANSMIT``
:ref:`ioctl CEC_ADAP_S_LOG_ADDRS <CEC_ADAP_S_LOG_ADDRS>`. If - 0x00000004
this capability isn't set, then the kernel will have configured - Userspace can transmit CEC messages by calling
this. :ref:`ioctl CEC_TRANSMIT <CEC_TRANSMIT>`. This implies that
userspace can be a follower as well, since being able to transmit
- .. _`CEC-CAP-TRANSMIT`: messages is a prerequisite of becoming a follower. If this
capability isn't set, then the kernel will handle all CEC
- ``CEC_CAP_TRANSMIT`` transmits and process all CEC messages it receives.
* .. _`CEC-CAP-PASSTHROUGH`:
- 0x00000004
- ``CEC_CAP_PASSTHROUGH``
- Userspace can transmit CEC messages by calling - 0x00000008
:ref:`ioctl CEC_TRANSMIT <CEC_TRANSMIT>`. This implies that - Userspace can use the passthrough mode by calling
userspace can be a follower as well, since being able to transmit :ref:`ioctl CEC_S_MODE <CEC_S_MODE>`.
messages is a prerequisite of becoming a follower. If this * .. _`CEC-CAP-RC`:
capability isn't set, then the kernel will handle all CEC
transmits and process all CEC messages it receives. - ``CEC_CAP_RC``
- 0x00000010
- .. _`CEC-CAP-PASSTHROUGH`: - This adapter supports the remote control protocol.
* .. _`CEC-CAP-MONITOR-ALL`:
- ``CEC_CAP_PASSTHROUGH``
- ``CEC_CAP_MONITOR_ALL``
- 0x00000008 - 0x00000020
- The CEC hardware can monitor all messages, not just directed and
- Userspace can use the passthrough mode by calling broadcast messages.
:ref:`ioctl CEC_S_MODE <CEC_S_MODE>`.
- .. _`CEC-CAP-RC`:
- ``CEC_CAP_RC``
- 0x00000010
- This adapter supports the remote control protocol.
- .. _`CEC-CAP-MONITOR-ALL`:
- ``CEC_CAP_MONITOR_ALL``
- 0x00000020
- The CEC hardware can monitor all messages, not just directed and
broadcast messages.
......
...@@ -77,134 +77,79 @@ logical address types are already defined will return with error ``EBUSY``. ...@@ -77,134 +77,79 @@ logical address types are already defined will return with error ``EBUSY``.
:stub-columns: 0 :stub-columns: 0
:widths: 1 1 16 :widths: 1 1 16
* - __u8
- .. row 1 - ``log_addr[CEC_MAX_LOG_ADDRS]``
- The actual logical addresses that were claimed. This is set by the
- __u8 driver. If no logical address could be claimed, then it is set to
``CEC_LOG_ADDR_INVALID``. If this adapter is Unregistered, then
- ``log_addr[CEC_MAX_LOG_ADDRS]`` ``log_addr[0]`` is set to 0xf and all others to
``CEC_LOG_ADDR_INVALID``.
- The actual logical addresses that were claimed. This is set by the * - __u16
driver. If no logical address could be claimed, then it is set to - ``log_addr_mask``
``CEC_LOG_ADDR_INVALID``. If this adapter is Unregistered, then - The bitmask of all logical addresses this adapter has claimed. If
``log_addr[0]`` is set to 0xf and all others to this adapter is Unregistered then ``log_addr_mask`` sets bit 15
``CEC_LOG_ADDR_INVALID``. and clears all other bits. If this adapter is not configured at
all, then ``log_addr_mask`` is set to 0. Set by the driver.
- .. row 2 * - __u8
- ``cec_version``
- __u16 - The CEC version that this adapter shall use. See
:ref:`cec-versions`. Used to implement the
- ``log_addr_mask`` ``CEC_MSG_CEC_VERSION`` and ``CEC_MSG_REPORT_FEATURES`` messages.
Note that :ref:`CEC_OP_CEC_VERSION_1_3A <CEC-OP-CEC-VERSION-1-3A>` is not allowed by the CEC
- The bitmask of all logical addresses this adapter has claimed. If framework.
this adapter is Unregistered then ``log_addr_mask`` sets bit 15 * - __u8
and clears all other bits. If this adapter is not configured at - ``num_log_addrs``
all, then ``log_addr_mask`` is set to 0. Set by the driver. - Number of logical addresses to set up. Must be ≤
``available_log_addrs`` as returned by
- .. row 3 :ref:`CEC_ADAP_G_CAPS`. All arrays in
this structure are only filled up to index
- __u8 ``available_log_addrs``-1. The remaining array elements will be
ignored. Note that the CEC 2.0 standard allows for a maximum of 2
- ``cec_version`` logical addresses, although some hardware has support for more.
``CEC_MAX_LOG_ADDRS`` is 4. The driver will return the actual
- The CEC version that this adapter shall use. See number of logical addresses it could claim, which may be less than
:ref:`cec-versions`. Used to implement the what was requested. If this field is set to 0, then the CEC
``CEC_MSG_CEC_VERSION`` and ``CEC_MSG_REPORT_FEATURES`` messages. adapter shall clear all claimed logical addresses and all other
Note that :ref:`CEC_OP_CEC_VERSION_1_3A <CEC-OP-CEC-VERSION-1-3A>` is not allowed by the CEC fields will be ignored.
framework. * - __u32
- ``vendor_id``
- .. row 4 - The vendor ID is a 24-bit number that identifies the specific
vendor or entity. Based on this ID vendor specific commands may be
- __u8 defined. If you do not want a vendor ID then set it to
``CEC_VENDOR_ID_NONE``.
- ``num_log_addrs`` * - __u32
- ``flags``
- Number of logical addresses to set up. Must be ≤ - Flags. See :ref:`cec-log-addrs-flags` for a list of available flags.
``available_log_addrs`` as returned by * - char
:ref:`CEC_ADAP_G_CAPS`. All arrays in - ``osd_name[15]``
this structure are only filled up to index - The On-Screen Display name as is returned by the
``available_log_addrs``-1. The remaining array elements will be ``CEC_MSG_SET_OSD_NAME`` message.
ignored. Note that the CEC 2.0 standard allows for a maximum of 2 * - __u8
logical addresses, although some hardware has support for more. - ``primary_device_type[CEC_MAX_LOG_ADDRS]``
``CEC_MAX_LOG_ADDRS`` is 4. The driver will return the actual - Primary device type for each logical address. See
number of logical addresses it could claim, which may be less than :ref:`cec-prim-dev-types` for possible types.
what was requested. If this field is set to 0, then the CEC * - __u8
adapter shall clear all claimed logical addresses and all other - ``log_addr_type[CEC_MAX_LOG_ADDRS]``
fields will be ignored. - Logical address types. See :ref:`cec-log-addr-types` for
possible types. The driver will update this with the actual
- .. row 5 logical address type that it claimed (e.g. it may have to fallback
to :ref:`CEC_LOG_ADDR_TYPE_UNREGISTERED <CEC-LOG-ADDR-TYPE-UNREGISTERED>`).
- __u32 * - __u8
- ``all_device_types[CEC_MAX_LOG_ADDRS]``
- ``vendor_id`` - CEC 2.0 specific: the bit mask of all device types. See
:ref:`cec-all-dev-types-flags`. It is used in the CEC 2.0
- The vendor ID is a 24-bit number that identifies the specific ``CEC_MSG_REPORT_FEATURES`` message. For CEC 1.4 you can either leave
vendor or entity. Based on this ID vendor specific commands may be this field to 0, or fill it in according to the CEC 2.0 guidelines to
defined. If you do not want a vendor ID then set it to give the CEC framework more information about the device type, even
``CEC_VENDOR_ID_NONE``. though the framework won't use it directly in the CEC message.
* - __u8
- .. row 6 - ``features[CEC_MAX_LOG_ADDRS][12]``
- Features for each logical address. It is used in the CEC 2.0
- __u32 ``CEC_MSG_REPORT_FEATURES`` message. The 12 bytes include both the
RC Profile and the Device Features. For CEC 1.4 you can either leave
- ``flags`` this field to all 0, or fill it in according to the CEC 2.0 guidelines to
give the CEC framework more information about the device type, even
- Flags. See :ref:`cec-log-addrs-flags` for a list of available flags. though the framework won't use it directly in the CEC message.
- .. row 7
- char
- ``osd_name[15]``
- The On-Screen Display name as is returned by the
``CEC_MSG_SET_OSD_NAME`` message.
- .. row 8
- __u8
- ``primary_device_type[CEC_MAX_LOG_ADDRS]``
- Primary device type for each logical address. See
:ref:`cec-prim-dev-types` for possible types.
- .. row 9
- __u8
- ``log_addr_type[CEC_MAX_LOG_ADDRS]``
- Logical address types. See :ref:`cec-log-addr-types` for
possible types. The driver will update this with the actual
logical address type that it claimed (e.g. it may have to fallback
to :ref:`CEC_LOG_ADDR_TYPE_UNREGISTERED <CEC-LOG-ADDR-TYPE-UNREGISTERED>`).
- .. row 10
- __u8
- ``all_device_types[CEC_MAX_LOG_ADDRS]``
- CEC 2.0 specific: the bit mask of all device types. See
:ref:`cec-all-dev-types-flags`. It is used in the CEC 2.0
``CEC_MSG_REPORT_FEATURES`` message. For CEC 1.4 you can either leave
this field to 0, or fill it in according to the CEC 2.0 guidelines to
give the CEC framework more information about the device type, even
though the framework won't use it directly in the CEC message.
- .. row 11
- __u8
- ``features[CEC_MAX_LOG_ADDRS][12]``
- Features for each logical address. It is used in the CEC 2.0
``CEC_MSG_REPORT_FEATURES`` message. The 12 bytes include both the
RC Profile and the Device Features. For CEC 1.4 you can either leave
this field to all 0, or fill it in according to the CEC 2.0 guidelines to
give the CEC framework more information about the device type, even
though the framework won't use it directly in the CEC message.
.. _cec-log-addrs-flags: .. _cec-log-addrs-flags:
...@@ -213,17 +158,33 @@ logical address types are already defined will return with error ``EBUSY``. ...@@ -213,17 +158,33 @@ logical address types are already defined will return with error ``EBUSY``.
:stub-columns: 0 :stub-columns: 0
:widths: 3 1 4 :widths: 3 1 4
* .. _`CEC-LOG-ADDRS-FL-ALLOW-UNREG-FALLBACK`:
- ``CEC_LOG_ADDRS_FL_ALLOW_UNREG_FALLBACK``
- 1
- By default if no logical address of the requested type can be claimed, then
it will go back to the unconfigured state. If this flag is set, then it will
fallback to the Unregistered logical address. Note that if the Unregistered
logical address was explicitly requested, then this flag has no effect.
* .. _`CEC-LOG-ADDRS-FL-ALLOW-RC-PASSTHRU`:
- .. _`CEC-LOG-ADDRS-FL-ALLOW-UNREG-FALLBACK`: - ``CEC_LOG_ADDRS_FL_ALLOW_RC_PASSTHRU``
- 2
- By default the ``CEC_MSG_USER_CONTROL_PRESSED`` and ``CEC_MSG_USER_CONTROL_RELEASED``
messages are only passed on to the follower(s), if any. If this flag is set,
then these messages are also passed on to the remote control input subsystem
and will appear as keystrokes. This features needs to be enabled explicitly.
If CEC is used to enter e.g. passwords, then you may not want to enable this
to avoid trivial snooping of the keystrokes.
* .. _`CEC-LOG-ADDRS-FL-CDC-ONLY`:
- ``CEC_LOG_ADDRS_FL_ALLOW_UNREG_FALLBACK`` - `CEC_LOG_ADDRS_FL_CDC_ONLY`
- 4
- If this flag is set, then the device is CDC-Only. CDC-Only CEC devices
are CEC devices that can only handle CDC messages.
- 1 All other messages are ignored.
- By default if no logical address of the requested type can be claimed, then
it will go back to the unconfigured state. If this flag is set, then it will
fallback to the Unregistered logical address. Note that if the Unregistered
logical address was explicitly requested, then this flag has no effect.
.. tabularcolumns:: |p{6.6cm}|p{2.2cm}|p{8.7cm}| .. tabularcolumns:: |p{6.6cm}|p{2.2cm}|p{8.7cm}|
...@@ -234,30 +195,21 @@ logical address types are already defined will return with error ``EBUSY``. ...@@ -234,30 +195,21 @@ logical address types are already defined will return with error ``EBUSY``.
:stub-columns: 0 :stub-columns: 0
:widths: 3 1 4 :widths: 3 1 4
* .. _`CEC-OP-CEC-VERSION-1-3A`:
- .. _`CEC-OP-CEC-VERSION-1-3A`: - ``CEC_OP_CEC_VERSION_1_3A``
- 4
- ``CEC_OP_CEC_VERSION_1_3A`` - CEC version according to the HDMI 1.3a standard.
* .. _`CEC-OP-CEC-VERSION-1-4B`:
- 4
- CEC version according to the HDMI 1.3a standard.
- .. _`CEC-OP-CEC-VERSION-1-4B`:
- ``CEC_OP_CEC_VERSION_1_4B``
- 5 - ``CEC_OP_CEC_VERSION_1_4B``
- 5
- CEC version according to the HDMI 1.4b standard.
* .. _`CEC-OP-CEC-VERSION-2-0`:
- CEC version according to the HDMI 1.4b standard. - ``CEC_OP_CEC_VERSION_2_0``
- 6
- .. _`CEC-OP-CEC-VERSION-2-0`: - CEC version according to the HDMI 2.0 standard.
- ``CEC_OP_CEC_VERSION_2_0``
- 6
- CEC version according to the HDMI 2.0 standard.
.. tabularcolumns:: |p{6.6cm}|p{2.2cm}|p{8.7cm}| .. tabularcolumns:: |p{6.6cm}|p{2.2cm}|p{8.7cm}|
...@@ -269,62 +221,41 @@ logical address types are already defined will return with error ``EBUSY``. ...@@ -269,62 +221,41 @@ logical address types are already defined will return with error ``EBUSY``.
:stub-columns: 0 :stub-columns: 0
:widths: 3 1 4 :widths: 3 1 4
* .. _`CEC-OP-PRIM-DEVTYPE-TV`:
- .. _`CEC-OP-PRIM-DEVTYPE-TV`: - ``CEC_OP_PRIM_DEVTYPE_TV``
- 0
- ``CEC_OP_PRIM_DEVTYPE_TV`` - Use for a TV.
* .. _`CEC-OP-PRIM-DEVTYPE-RECORD`:
- 0
- Use for a TV.
- .. _`CEC-OP-PRIM-DEVTYPE-RECORD`: - ``CEC_OP_PRIM_DEVTYPE_RECORD``
- 1
- Use for a recording device.
* .. _`CEC-OP-PRIM-DEVTYPE-TUNER`:
- ``CEC_OP_PRIM_DEVTYPE_RECORD`` - ``CEC_OP_PRIM_DEVTYPE_TUNER``
- 3
- Use for a device with a tuner.
* .. _`CEC-OP-PRIM-DEVTYPE-PLAYBACK`:
- 1 - ``CEC_OP_PRIM_DEVTYPE_PLAYBACK``
- 4
- Use for a playback device.
* .. _`CEC-OP-PRIM-DEVTYPE-AUDIOSYSTEM`:
- Use for a recording device. - ``CEC_OP_PRIM_DEVTYPE_AUDIOSYSTEM``
- 5
- Use for an audio system (e.g. an audio/video receiver).
* .. _`CEC-OP-PRIM-DEVTYPE-SWITCH`:
- .. _`CEC-OP-PRIM-DEVTYPE-TUNER`: - ``CEC_OP_PRIM_DEVTYPE_SWITCH``
- 6
- Use for a CEC switch.
* .. _`CEC-OP-PRIM-DEVTYPE-VIDEOPROC`:
- ``CEC_OP_PRIM_DEVTYPE_TUNER`` - ``CEC_OP_PRIM_DEVTYPE_VIDEOPROC``
- 7
- 3 - Use for a video processor device.
- Use for a device with a tuner.
- .. _`CEC-OP-PRIM-DEVTYPE-PLAYBACK`:
- ``CEC_OP_PRIM_DEVTYPE_PLAYBACK``
- 4
- Use for a playback device.
- .. _`CEC-OP-PRIM-DEVTYPE-AUDIOSYSTEM`:
- ``CEC_OP_PRIM_DEVTYPE_AUDIOSYSTEM``
- 5
- Use for an audio system (e.g. an audio/video receiver).
- .. _`CEC-OP-PRIM-DEVTYPE-SWITCH`:
- ``CEC_OP_PRIM_DEVTYPE_SWITCH``
- 6
- Use for a CEC switch.
- .. _`CEC-OP-PRIM-DEVTYPE-VIDEOPROC`:
- ``CEC_OP_PRIM_DEVTYPE_VIDEOPROC``
- 7
- Use for a video processor device.
.. tabularcolumns:: |p{6.6cm}|p{2.2cm}|p{8.7cm}| .. tabularcolumns:: |p{6.6cm}|p{2.2cm}|p{8.7cm}|
...@@ -336,64 +267,43 @@ logical address types are already defined will return with error ``EBUSY``. ...@@ -336,64 +267,43 @@ logical address types are already defined will return with error ``EBUSY``.
:stub-columns: 0 :stub-columns: 0
:widths: 3 1 16 :widths: 3 1 16
* .. _`CEC-LOG-ADDR-TYPE-TV`:
- .. _`CEC-LOG-ADDR-TYPE-TV`: - ``CEC_LOG_ADDR_TYPE_TV``
- 0
- ``CEC_LOG_ADDR_TYPE_TV`` - Use for a TV.
* .. _`CEC-LOG-ADDR-TYPE-RECORD`:
- 0
- Use for a TV.
- .. _`CEC-LOG-ADDR-TYPE-RECORD`:
- ``CEC_LOG_ADDR_TYPE_RECORD``
- 1
- Use for a recording device.
- .. _`CEC-LOG-ADDR-TYPE-TUNER`:
- ``CEC_LOG_ADDR_TYPE_TUNER``
- 2
- Use for a tuner device.
- .. _`CEC-LOG-ADDR-TYPE-PLAYBACK`: - ``CEC_LOG_ADDR_TYPE_RECORD``
- 1
- Use for a recording device.
* .. _`CEC-LOG-ADDR-TYPE-TUNER`:
- ``CEC_LOG_ADDR_TYPE_PLAYBACK`` - ``CEC_LOG_ADDR_TYPE_TUNER``
- 2
- Use for a tuner device.
* .. _`CEC-LOG-ADDR-TYPE-PLAYBACK`:
- 3 - ``CEC_LOG_ADDR_TYPE_PLAYBACK``
- 3
- Use for a playback device.
* .. _`CEC-LOG-ADDR-TYPE-AUDIOSYSTEM`:
- Use for a playback device. - ``CEC_LOG_ADDR_TYPE_AUDIOSYSTEM``
- 4
- Use for an audio system device.
* .. _`CEC-LOG-ADDR-TYPE-SPECIFIC`:
- .. _`CEC-LOG-ADDR-TYPE-AUDIOSYSTEM`: - ``CEC_LOG_ADDR_TYPE_SPECIFIC``
- 5
- Use for a second TV or for a video processor device.
* .. _`CEC-LOG-ADDR-TYPE-UNREGISTERED`:
- ``CEC_LOG_ADDR_TYPE_AUDIOSYSTEM`` - ``CEC_LOG_ADDR_TYPE_UNREGISTERED``
- 6
- 4 - Use this if you just want to remain unregistered. Used for pure
CEC switches or CDC-only devices (CDC: Capability Discovery and
- Use for an audio system device. Control).
- .. _`CEC-LOG-ADDR-TYPE-SPECIFIC`:
- ``CEC_LOG_ADDR_TYPE_SPECIFIC``
- 5
- Use for a second TV or for a video processor device.
- .. _`CEC-LOG-ADDR-TYPE-UNREGISTERED`:
- ``CEC_LOG_ADDR_TYPE_UNREGISTERED``
- 6
- Use this if you just want to remain unregistered. Used for pure
CEC switches or CDC-only devices (CDC: Capability Discovery and
Control).
...@@ -406,54 +316,36 @@ logical address types are already defined will return with error ``EBUSY``. ...@@ -406,54 +316,36 @@ logical address types are already defined will return with error ``EBUSY``.
:stub-columns: 0 :stub-columns: 0
:widths: 3 1 4 :widths: 3 1 4
* .. _`CEC-OP-ALL-DEVTYPE-TV`:
- .. _`CEC-OP-ALL-DEVTYPE-TV`: - ``CEC_OP_ALL_DEVTYPE_TV``
- 0x80
- ``CEC_OP_ALL_DEVTYPE_TV`` - This supports the TV type.
* .. _`CEC-OP-ALL-DEVTYPE-RECORD`:
- 0x80
- This supports the TV type.
- .. _`CEC-OP-ALL-DEVTYPE-RECORD`:
- ``CEC_OP_ALL_DEVTYPE_RECORD``
- 0x40
- This supports the Recording type.
- .. _`CEC-OP-ALL-DEVTYPE-TUNER`:
- ``CEC_OP_ALL_DEVTYPE_TUNER``
- 0x20
- This supports the Tuner type.
- .. _`CEC-OP-ALL-DEVTYPE-PLAYBACK`:
- ``CEC_OP_ALL_DEVTYPE_PLAYBACK``
- 0x10
- This supports the Playback type.
- .. _`CEC-OP-ALL-DEVTYPE-AUDIOSYSTEM`:
- ``CEC_OP_ALL_DEVTYPE_AUDIOSYSTEM``
- 0x08
- This supports the Audio System type. - ``CEC_OP_ALL_DEVTYPE_RECORD``
- 0x40
- This supports the Recording type.
* .. _`CEC-OP-ALL-DEVTYPE-TUNER`:
- .. _`CEC-OP-ALL-DEVTYPE-SWITCH`: - ``CEC_OP_ALL_DEVTYPE_TUNER``
- 0x20
- This supports the Tuner type.
* .. _`CEC-OP-ALL-DEVTYPE-PLAYBACK`:
- ``CEC_OP_ALL_DEVTYPE_SWITCH`` - ``CEC_OP_ALL_DEVTYPE_PLAYBACK``
- 0x10
- This supports the Playback type.
* .. _`CEC-OP-ALL-DEVTYPE-AUDIOSYSTEM`:
- 0x04 - ``CEC_OP_ALL_DEVTYPE_AUDIOSYSTEM``
- 0x08
- This supports the Audio System type.
* .. _`CEC-OP-ALL-DEVTYPE-SWITCH`:
- This supports the CEC Switch or Video Processing type. - ``CEC_OP_ALL_DEVTYPE_SWITCH``
- 0x04
- This supports the CEC Switch or Video Processing type.
......
...@@ -58,26 +58,16 @@ it is guaranteed that the state did change in between the two events. ...@@ -58,26 +58,16 @@ it is guaranteed that the state did change in between the two events.
:stub-columns: 0 :stub-columns: 0
:widths: 1 1 8 :widths: 1 1 8
* - __u16
- .. row 1 - ``phys_addr``
- The current physical address. This is ``CEC_PHYS_ADDR_INVALID`` if no
- __u16
- ``phys_addr``
- The current physical address. This is ``CEC_PHYS_ADDR_INVALID`` if no
valid physical address is set. valid physical address is set.
* - __u16
- .. row 2 - ``log_addr_mask``
- The current set of claimed logical addresses. This is 0 if no logical
- __u16 addresses are claimed or if ``phys_addr`` is ``CEC_PHYS_ADDR_INVALID``.
If bit 15 is set (``1 << CEC_LOG_ADDR_UNREGISTERED``) then this device
- ``log_addr_mask`` has the unregistered logical address. In that case all other bits are 0.
- The current set of claimed logical addresses. This is 0 if no logical
addresses are claimed or if ``phys_addr`` is ``CEC_PHYS_ADDR_INVALID``.
If bit 15 is set (``1 << CEC_LOG_ADDR_UNREGISTERED``) then this device
has the unregistered logical address. In that case all other bits are 0.
.. c:type:: cec_event_lost_msgs .. c:type:: cec_event_lost_msgs
...@@ -89,22 +79,17 @@ it is guaranteed that the state did change in between the two events. ...@@ -89,22 +79,17 @@ it is guaranteed that the state did change in between the two events.
:stub-columns: 0 :stub-columns: 0
:widths: 1 1 16 :widths: 1 1 16
* - __u32
- .. row 1 - ``lost_msgs``
- Set to the number of lost messages since the filehandle was opened
- __u32 or since the last time this event was dequeued for this
filehandle. The messages lost are the oldest messages. So when a
- ``lost_msgs`` new message arrives and there is no more room, then the oldest
message is discarded to make room for the new one. The internal
- Set to the number of lost messages since the filehandle was opened size of the message queue guarantees that all messages received in
or since the last time this event was dequeued for this the last two seconds will be stored. Since messages should be
filehandle. The messages lost are the oldest messages. So when a replied to within a second according to the CEC specification,
new message arrives and there is no more room, then the oldest this is more than enough.
message is discarded to make room for the new one. The internal
size of the message queue guarantees that all messages received in
the last two seconds will be stored. Since messages should be
replied to within a second according to the CEC specification,
this is more than enough.
.. tabularcolumns:: |p{1.0cm}|p{4.2cm}|p{2.5cm}|p{8.8cm}| .. tabularcolumns:: |p{1.0cm}|p{4.2cm}|p{2.5cm}|p{8.8cm}|
...@@ -116,62 +101,32 @@ it is guaranteed that the state did change in between the two events. ...@@ -116,62 +101,32 @@ it is guaranteed that the state did change in between the two events.
:stub-columns: 0 :stub-columns: 0
:widths: 1 1 1 8 :widths: 1 1 1 8
* - __u64
- .. row 1 - ``ts``
- :cspan:`1` Timestamp of the event in ns.
- __u64
The timestamp has been taken from the ``CLOCK_MONOTONIC`` clock. To access
- ``ts`` the same clock from userspace use :c:func:`clock_gettime`.
* - __u32
- :cspan:`1` Timestamp of the event in ns. - ``event``
- :cspan:`1` The CEC event type, see :ref:`cec-events`.
The timestamp has been taken from the ``CLOCK_MONOTONIC`` clock. To access * - __u32
the same clock from userspace use :c:func:`clock_gettime`. - ``flags``
- :cspan:`1` Event flags, see :ref:`cec-event-flags`.
- .. row 2 * - union
- (anonymous)
- __u32 -
-
- ``event`` * -
- struct cec_event_state_change
- :cspan:`1` The CEC event type, see :ref:`cec-events`. - ``state_change``
- The new adapter state as sent by the :ref:`CEC_EVENT_STATE_CHANGE <CEC-EVENT-STATE-CHANGE>`
- .. row 3 event.
* -
- __u32 - struct cec_event_lost_msgs
- ``lost_msgs``
- ``flags`` - The number of lost messages as sent by the :ref:`CEC_EVENT_LOST_MSGS <CEC-EVENT-LOST-MSGS>`
event.
- :cspan:`1` Event flags, see :ref:`cec-event-flags`.
- .. row 4
- union
- (anonymous)
-
-
- .. row 5
-
- struct cec_event_state_change
- ``state_change``
- The new adapter state as sent by the :ref:`CEC_EVENT_STATE_CHANGE <CEC-EVENT-STATE-CHANGE>`
event.
- .. row 6
-
- struct cec_event_lost_msgs
- ``lost_msgs``
- The number of lost messages as sent by the :ref:`CEC_EVENT_LOST_MSGS <CEC-EVENT-LOST-MSGS>`
event.
.. tabularcolumns:: |p{5.6cm}|p{0.9cm}|p{11.0cm}| .. tabularcolumns:: |p{5.6cm}|p{0.9cm}|p{11.0cm}|
...@@ -183,25 +138,19 @@ it is guaranteed that the state did change in between the two events. ...@@ -183,25 +138,19 @@ it is guaranteed that the state did change in between the two events.
:stub-columns: 0 :stub-columns: 0
:widths: 3 1 16 :widths: 3 1 16
* .. _`CEC-EVENT-STATE-CHANGE`:
- .. _`CEC-EVENT-STATE-CHANGE`: - ``CEC_EVENT_STATE_CHANGE``
- 1
- ``CEC_EVENT_STATE_CHANGE`` - Generated when the CEC Adapter's state changes. When open() is
called an initial event will be generated for that filehandle with
- 1 the CEC Adapter's state at that time.
* .. _`CEC-EVENT-LOST-MSGS`:
- Generated when the CEC Adapter's state changes. When open() is
called an initial event will be generated for that filehandle with
the CEC Adapter's state at that time.
- .. _`CEC-EVENT-LOST-MSGS`:
- ``CEC_EVENT_LOST_MSGS`` - ``CEC_EVENT_LOST_MSGS``
- 2
- 2 - Generated if one or more CEC messages were lost because the
application didn't dequeue CEC messages fast enough.
- Generated if one or more CEC messages were lost because the
application didn't dequeue CEC messages fast enough.
.. tabularcolumns:: |p{6.0cm}|p{0.6cm}|p{10.9cm}| .. tabularcolumns:: |p{6.0cm}|p{0.6cm}|p{10.9cm}|
...@@ -213,17 +162,14 @@ it is guaranteed that the state did change in between the two events. ...@@ -213,17 +162,14 @@ it is guaranteed that the state did change in between the two events.
:stub-columns: 0 :stub-columns: 0
:widths: 3 1 8 :widths: 3 1 8
* .. _`CEC-EVENT-FL-INITIAL-VALUE`:
- .. _`CEC-EVENT-FL-INITIAL-VALUE`: - ``CEC_EVENT_FL_INITIAL_VALUE``
- 1
- ``CEC_EVENT_FL_INITIAL_VALUE`` - Set for the initial events that are generated when the device is
opened. See the table above for which events do this. This allows
- 1 applications to learn the initial state of the CEC adapter at
open() time.
- Set for the initial events that are generated when the device is
opened. See the table above for which events do this. This allows
applications to learn the initial state of the CEC adapter at
open() time.
......
...@@ -83,37 +83,28 @@ Available initiator modes are: ...@@ -83,37 +83,28 @@ Available initiator modes are:
:stub-columns: 0 :stub-columns: 0
:widths: 3 1 16 :widths: 3 1 16
* .. _`CEC-MODE-NO-INITIATOR`:
- .. _`CEC-MODE-NO-INITIATOR`:
- ``CEC_MODE_NO_INITIATOR``
- ``CEC_MODE_NO_INITIATOR`` - 0x0
- This is not an initiator, i.e. it cannot transmit CEC messages or
- 0x0 make any other changes to the CEC adapter.
* .. _`CEC-MODE-INITIATOR`:
- This is not an initiator, i.e. it cannot transmit CEC messages or
make any other changes to the CEC adapter. - ``CEC_MODE_INITIATOR``
- 0x1
- .. _`CEC-MODE-INITIATOR`: - This is an initiator (the default when the device is opened) and
it can transmit CEC messages and make changes to the CEC adapter,
- ``CEC_MODE_INITIATOR`` unless there is an exclusive initiator.
* .. _`CEC-MODE-EXCL-INITIATOR`:
- 0x1
- ``CEC_MODE_EXCL_INITIATOR``
- This is an initiator (the default when the device is opened) and - 0x2
it can transmit CEC messages and make changes to the CEC adapter, - This is an exclusive initiator and this file descriptor is the
unless there is an exclusive initiator. only one that can transmit CEC messages and make changes to the
CEC adapter. If someone else is already the exclusive initiator
- .. _`CEC-MODE-EXCL-INITIATOR`: then an attempt to become one will return the ``EBUSY`` error code
error.
- ``CEC_MODE_EXCL_INITIATOR``
- 0x2
- This is an exclusive initiator and this file descriptor is the
only one that can transmit CEC messages and make changes to the
CEC adapter. If someone else is already the exclusive initiator
then an attempt to become one will return the ``EBUSY`` error code
error.
Available follower modes are: Available follower modes are:
...@@ -127,86 +118,68 @@ Available follower modes are: ...@@ -127,86 +118,68 @@ Available follower modes are:
:stub-columns: 0 :stub-columns: 0
:widths: 3 1 16 :widths: 3 1 16
* .. _`CEC-MODE-NO-FOLLOWER`:
- .. _`CEC-MODE-NO-FOLLOWER`:
- ``CEC_MODE_NO_FOLLOWER``
- ``CEC_MODE_NO_FOLLOWER`` - 0x00
- This is not a follower (the default when the device is opened).
- 0x00 * .. _`CEC-MODE-FOLLOWER`:
- This is not a follower (the default when the device is opened). - ``CEC_MODE_FOLLOWER``
- 0x10
- .. _`CEC-MODE-FOLLOWER`: - This is a follower and it will receive CEC messages unless there
is an exclusive follower. You cannot become a follower if
- ``CEC_MODE_FOLLOWER`` :ref:`CEC_CAP_TRANSMIT <CEC-CAP-TRANSMIT>` is not set or if :ref:`CEC_MODE_NO_INITIATOR <CEC-MODE-NO-INITIATOR>`
was specified, the ``EINVAL`` error code is returned in that case.
- 0x10 * .. _`CEC-MODE-EXCL-FOLLOWER`:
- This is a follower and it will receive CEC messages unless there - ``CEC_MODE_EXCL_FOLLOWER``
is an exclusive follower. You cannot become a follower if - 0x20
:ref:`CEC_CAP_TRANSMIT <CEC-CAP-TRANSMIT>` is not set or if :ref:`CEC_MODE_NO_INITIATOR <CEC-MODE-NO-INITIATOR>` - This is an exclusive follower and only this file descriptor will
was specified, the ``EINVAL`` error code is returned in that case. receive CEC messages for processing. If someone else is already
the exclusive follower then an attempt to become one will return
- .. _`CEC-MODE-EXCL-FOLLOWER`: the ``EBUSY`` error code. You cannot become a follower if
:ref:`CEC_CAP_TRANSMIT <CEC-CAP-TRANSMIT>` is not set or if :ref:`CEC_MODE_NO_INITIATOR <CEC-MODE-NO-INITIATOR>`
- ``CEC_MODE_EXCL_FOLLOWER`` was specified, the ``EINVAL`` error code is returned in that case.
* .. _`CEC-MODE-EXCL-FOLLOWER-PASSTHRU`:
- 0x20
- ``CEC_MODE_EXCL_FOLLOWER_PASSTHRU``
- This is an exclusive follower and only this file descriptor will - 0x30
receive CEC messages for processing. If someone else is already - This is an exclusive follower and only this file descriptor will
the exclusive follower then an attempt to become one will return receive CEC messages for processing. In addition it will put the
the ``EBUSY`` error code. You cannot become a follower if CEC device into passthrough mode, allowing the exclusive follower
:ref:`CEC_CAP_TRANSMIT <CEC-CAP-TRANSMIT>` is not set or if :ref:`CEC_MODE_NO_INITIATOR <CEC-MODE-NO-INITIATOR>` to handle most core messages instead of relying on the CEC
was specified, the ``EINVAL`` error code is returned in that case. framework for that. If someone else is already the exclusive
follower then an attempt to become one will return the ``EBUSY`` error
- .. _`CEC-MODE-EXCL-FOLLOWER-PASSTHRU`: code. You cannot become a follower if :ref:`CEC_CAP_TRANSMIT <CEC-CAP-TRANSMIT>`
is not set or if :ref:`CEC_MODE_NO_INITIATOR <CEC-MODE-NO-INITIATOR>` was specified,
- ``CEC_MODE_EXCL_FOLLOWER_PASSTHRU`` the ``EINVAL`` error code is returned in that case.
* .. _`CEC-MODE-MONITOR`:
- 0x30
- ``CEC_MODE_MONITOR``
- This is an exclusive follower and only this file descriptor will - 0xe0
receive CEC messages for processing. In addition it will put the - Put the file descriptor into monitor mode. Can only be used in
CEC device into passthrough mode, allowing the exclusive follower combination with :ref:`CEC_MODE_NO_INITIATOR <CEC-MODE-NO-INITIATOR>`, otherwise EINVAL error
to handle most core messages instead of relying on the CEC code will be returned. In monitor mode all messages this CEC
framework for that. If someone else is already the exclusive device transmits and all messages it receives (both broadcast
follower then an attempt to become one will return the ``EBUSY`` error messages and directed messages for one its logical addresses) will
code. You cannot become a follower if :ref:`CEC_CAP_TRANSMIT <CEC-CAP-TRANSMIT>` be reported. This is very useful for debugging. This is only
is not set or if :ref:`CEC_MODE_NO_INITIATOR <CEC-MODE-NO-INITIATOR>` was specified, allowed if the process has the ``CAP_NET_ADMIN`` capability. If
the ``EINVAL`` error code is returned in that case. that is not set, then the ``EPERM`` error code is returned.
* .. _`CEC-MODE-MONITOR-ALL`:
- .. _`CEC-MODE-MONITOR`:
- ``CEC_MODE_MONITOR_ALL``
- ``CEC_MODE_MONITOR`` - 0xf0
- Put the file descriptor into 'monitor all' mode. Can only be used
- 0xe0 in combination with :ref:`CEC_MODE_NO_INITIATOR <CEC-MODE-NO-INITIATOR>`, otherwise
the ``EINVAL`` error code will be returned. In 'monitor all' mode all messages
- Put the file descriptor into monitor mode. Can only be used in this CEC device transmits and all messages it receives, including
combination with :ref:`CEC_MODE_NO_INITIATOR <CEC-MODE-NO-INITIATOR>`, otherwise EINVAL error directed messages for other CEC devices will be reported. This is
code will be returned. In monitor mode all messages this CEC very useful for debugging, but not all devices support this. This
device transmits and all messages it receives (both broadcast mode requires that the :ref:`CEC_CAP_MONITOR_ALL <CEC-CAP-MONITOR-ALL>` capability is set,
messages and directed messages for one its logical addresses) will otherwise the ``EINVAL`` error code is returned. This is only allowed if
be reported. This is very useful for debugging. This is only the process has the ``CAP_NET_ADMIN`` capability. If that is not
allowed if the process has the ``CAP_NET_ADMIN`` capability. If set, then the ``EPERM`` error code is returned.
that is not set, then the ``EPERM`` error code is returned.
- .. _`CEC-MODE-MONITOR-ALL`:
- ``CEC_MODE_MONITOR_ALL``
- 0xf0
- Put the file descriptor into 'monitor all' mode. Can only be used
in combination with :ref:`CEC_MODE_NO_INITIATOR <CEC-MODE-NO-INITIATOR>`, otherwise
the ``EINVAL`` error code will be returned. In 'monitor all' mode all messages
this CEC device transmits and all messages it receives, including
directed messages for other CEC devices will be reported. This is
very useful for debugging, but not all devices support this. This
mode requires that the :ref:`CEC_CAP_MONITOR_ALL <CEC-CAP-MONITOR-ALL>` capability is set,
otherwise the ``EINVAL`` error code is returned. This is only allowed if
the process has the ``CAP_NET_ADMIN`` capability. If that is not
set, then the ``EPERM`` error code is returned.
Core message processing details: Core message processing details:
...@@ -220,76 +193,58 @@ Core message processing details: ...@@ -220,76 +193,58 @@ Core message processing details:
:stub-columns: 0 :stub-columns: 0
:widths: 1 8 :widths: 1 8
* .. _`CEC-MSG-GET-CEC-VERSION`:
- .. _`CEC-MSG-GET-CEC-VERSION`:
- ``CEC_MSG_GET_CEC_VERSION``
- ``CEC_MSG_GET_CEC_VERSION`` - When in passthrough mode this message has to be handled by
userspace, otherwise the core will return the CEC version that was
- When in passthrough mode this message has to be handled by set with :ref:`ioctl CEC_ADAP_S_LOG_ADDRS <CEC_ADAP_S_LOG_ADDRS>`.
userspace, otherwise the core will return the CEC version that was * .. _`CEC-MSG-GIVE-DEVICE-VENDOR-ID`:
set with :ref:`ioctl CEC_ADAP_S_LOG_ADDRS <CEC_ADAP_S_LOG_ADDRS>`.
- ``CEC_MSG_GIVE_DEVICE_VENDOR_ID``
- .. _`CEC-MSG-GIVE-DEVICE-VENDOR-ID`: - When in passthrough mode this message has to be handled by
userspace, otherwise the core will return the vendor ID that was
- ``CEC_MSG_GIVE_DEVICE_VENDOR_ID`` set with :ref:`ioctl CEC_ADAP_S_LOG_ADDRS <CEC_ADAP_S_LOG_ADDRS>`.
* .. _`CEC-MSG-ABORT`:
- When in passthrough mode this message has to be handled by
userspace, otherwise the core will return the vendor ID that was - ``CEC_MSG_ABORT``
set with :ref:`ioctl CEC_ADAP_S_LOG_ADDRS <CEC_ADAP_S_LOG_ADDRS>`. - When in passthrough mode this message has to be handled by
userspace, otherwise the core will return a feature refused
- .. _`CEC-MSG-ABORT`: message as per the specification.
* .. _`CEC-MSG-GIVE-PHYSICAL-ADDR`:
- ``CEC_MSG_ABORT``
- ``CEC_MSG_GIVE_PHYSICAL_ADDR``
- When in passthrough mode this message has to be handled by - When in passthrough mode this message has to be handled by
userspace, otherwise the core will return a feature refused userspace, otherwise the core will report the current physical
message as per the specification. address.
* .. _`CEC-MSG-GIVE-OSD-NAME`:
- .. _`CEC-MSG-GIVE-PHYSICAL-ADDR`:
- ``CEC_MSG_GIVE_OSD_NAME``
- ``CEC_MSG_GIVE_PHYSICAL_ADDR`` - When in passthrough mode this message has to be handled by
userspace, otherwise the core will report the current OSD name as
- When in passthrough mode this message has to be handled by was set with :ref:`ioctl CEC_ADAP_S_LOG_ADDRS <CEC_ADAP_S_LOG_ADDRS>`.
userspace, otherwise the core will report the current physical * .. _`CEC-MSG-GIVE-FEATURES`:
address.
- ``CEC_MSG_GIVE_FEATURES``
- .. _`CEC-MSG-GIVE-OSD-NAME`: - When in passthrough mode this message has to be handled by
userspace, otherwise the core will report the current features as
- ``CEC_MSG_GIVE_OSD_NAME`` was set with :ref:`ioctl CEC_ADAP_S_LOG_ADDRS <CEC_ADAP_S_LOG_ADDRS>`
or the message is ignored if the CEC version was older than 2.0.
- When in passthrough mode this message has to be handled by * .. _`CEC-MSG-USER-CONTROL-PRESSED`:
userspace, otherwise the core will report the current OSD name as
was set with :ref:`ioctl CEC_ADAP_S_LOG_ADDRS <CEC_ADAP_S_LOG_ADDRS>`. - ``CEC_MSG_USER_CONTROL_PRESSED``
- If :ref:`CEC_CAP_RC <CEC-CAP-RC>` is set, then generate a remote control key
- .. _`CEC-MSG-GIVE-FEATURES`: press. This message is always passed on to userspace.
* .. _`CEC-MSG-USER-CONTROL-RELEASED`:
- ``CEC_MSG_GIVE_FEATURES``
- ``CEC_MSG_USER_CONTROL_RELEASED``
- When in passthrough mode this message has to be handled by - If :ref:`CEC_CAP_RC <CEC-CAP-RC>` is set, then generate a remote control key
userspace, otherwise the core will report the current features as release. This message is always passed on to userspace.
was set with :ref:`ioctl CEC_ADAP_S_LOG_ADDRS <CEC_ADAP_S_LOG_ADDRS>` * .. _`CEC-MSG-REPORT-PHYSICAL-ADDR`:
or the message is ignored if the CEC version was older than 2.0.
- ``CEC_MSG_REPORT_PHYSICAL_ADDR``
- .. _`CEC-MSG-USER-CONTROL-PRESSED`: - The CEC framework will make note of the reported physical address
and then just pass the message on to userspace.
- ``CEC_MSG_USER_CONTROL_PRESSED``
- If :ref:`CEC_CAP_RC <CEC-CAP-RC>` is set, then generate a remote control key
press. This message is always passed on to userspace.
- .. _`CEC-MSG-USER-CONTROL-RELEASED`:
- ``CEC_MSG_USER_CONTROL_RELEASED``
- If :ref:`CEC_CAP_RC <CEC-CAP-RC>` is set, then generate a remote control key
release. This message is always passed on to userspace.
- .. _`CEC-MSG-REPORT-PHYSICAL-ADDR`:
- ``CEC_MSG_REPORT_PHYSICAL_ADDR``
- The CEC framework will make note of the reported physical address
and then just pass the message on to userspace.
......
...@@ -312,21 +312,20 @@ more menu type controls. ...@@ -312,21 +312,20 @@ more menu type controls.
.. _enum_all_controls: .. _enum_all_controls:
Example: Enumerating all user controls Example: Enumerating all controls
====================================== =================================
.. code-block:: c .. code-block:: c
struct v4l2_queryctrl queryctrl; struct v4l2_queryctrl queryctrl;
struct v4l2_querymenu querymenu; struct v4l2_querymenu querymenu;
static void enumerate_menu(void) static void enumerate_menu(__u32 id)
{ {
printf(" Menu items:\\n"); printf(" Menu items:\\n");
memset(&querymenu, 0, sizeof(querymenu)); memset(&querymenu, 0, sizeof(querymenu));
querymenu.id = queryctrl.id; querymenu.id = id;
for (querymenu.index = queryctrl.minimum; for (querymenu.index = queryctrl.minimum;
querymenu.index <= queryctrl.maximum; querymenu.index <= queryctrl.maximum;
...@@ -337,6 +336,55 @@ Example: Enumerating all user controls ...@@ -337,6 +336,55 @@ Example: Enumerating all user controls
} }
} }
memset(&queryctrl, 0, sizeof(queryctrl));
queryctrl.id = V4L2_CTRL_FLAG_NEXT_CTRL;
while (0 == ioctl(fd, VIDIOC_QUERYCTRL, &queryctrl)) {
if (!(queryctrl.flags & V4L2_CTRL_FLAG_DISABLED)) {
printf("Control %s\\n", queryctrl.name);
if (queryctrl.type == V4L2_CTRL_TYPE_MENU)
enumerate_menu(queryctrl.id);
}
queryctrl.id |= V4L2_CTRL_FLAG_NEXT_CTRL;
}
if (errno != EINVAL) {
perror("VIDIOC_QUERYCTRL");
exit(EXIT_FAILURE);
}
Example: Enumerating all controls including compound controls
=============================================================
.. code-block:: c
struct v4l2_query_ext_ctrl query_ext_ctrl;
memset(&query_ext_ctrl, 0, sizeof(query_ext_ctrl));
query_ext_ctrl.id = V4L2_CTRL_FLAG_NEXT_CTRL | V4L2_CTRL_FLAG_NEXT_COMPOUND;
while (0 == ioctl(fd, VIDIOC_QUERY_EXT_CTRL, &query_ext_ctrl)) {
if (!(query_ext_ctrl.flags & V4L2_CTRL_FLAG_DISABLED)) {
printf("Control %s\\n", query_ext_ctrl.name);
if (query_ext_ctrl.type == V4L2_CTRL_TYPE_MENU)
enumerate_menu(query_ext_ctrl.id);
}
query_ext_ctrl.id |= V4L2_CTRL_FLAG_NEXT_CTRL | V4L2_CTRL_FLAG_NEXT_COMPOUND;
}
if (errno != EINVAL) {
perror("VIDIOC_QUERY_EXT_CTRL");
exit(EXIT_FAILURE);
}
Example: Enumerating all user controls (old style)
==================================================
.. code-block:: c
memset(&queryctrl, 0, sizeof(queryctrl)); memset(&queryctrl, 0, sizeof(queryctrl));
for (queryctrl.id = V4L2_CID_BASE; for (queryctrl.id = V4L2_CID_BASE;
...@@ -349,7 +397,7 @@ Example: Enumerating all user controls ...@@ -349,7 +397,7 @@ Example: Enumerating all user controls
printf("Control %s\\n", queryctrl.name); printf("Control %s\\n", queryctrl.name);
if (queryctrl.type == V4L2_CTRL_TYPE_MENU) if (queryctrl.type == V4L2_CTRL_TYPE_MENU)
enumerate_menu(); enumerate_menu(queryctrl.id);
} else { } else {
if (errno == EINVAL) if (errno == EINVAL)
continue; continue;
...@@ -368,7 +416,7 @@ Example: Enumerating all user controls ...@@ -368,7 +416,7 @@ Example: Enumerating all user controls
printf("Control %s\\n", queryctrl.name); printf("Control %s\\n", queryctrl.name);
if (queryctrl.type == V4L2_CTRL_TYPE_MENU) if (queryctrl.type == V4L2_CTRL_TYPE_MENU)
enumerate_menu(); enumerate_menu(queryctrl.id);
} else { } else {
if (errno == EINVAL) if (errno == EINVAL)
break; break;
...@@ -379,32 +427,6 @@ Example: Enumerating all user controls ...@@ -379,32 +427,6 @@ Example: Enumerating all user controls
} }
Example: Enumerating all user controls (alternative)
====================================================
.. code-block:: c
memset(&queryctrl, 0, sizeof(queryctrl));
queryctrl.id = V4L2_CTRL_CLASS_USER | V4L2_CTRL_FLAG_NEXT_CTRL;
while (0 == ioctl(fd, VIDIOC_QUERYCTRL, &queryctrl)) {
if (V4L2_CTRL_ID2CLASS(queryctrl.id) != V4L2_CTRL_CLASS_USER)
break;
if (queryctrl.flags & V4L2_CTRL_FLAG_DISABLED)
continue;
printf("Control %s\\n", queryctrl.name);
if (queryctrl.type == V4L2_CTRL_TYPE_MENU)
enumerate_menu();
queryctrl.id |= V4L2_CTRL_FLAG_NEXT_CTRL;
}
if (errno != EINVAL) {
perror("VIDIOC_QUERYCTRL");
exit(EXIT_FAILURE);
}
Example: Changing controls Example: Changing controls
========================== ==========================
......
...@@ -26,7 +26,7 @@ parameters ...@@ -26,7 +26,7 @@ parameters
The MPEG controls actually support many more codecs than The MPEG controls actually support many more codecs than
just MPEG. See :ref:`mpeg-controls`. just MPEG. See :ref:`mpeg-controls`.
Memory-to-memory devices can often be used as a shared resource: you can Memory-to-memory devices function as a shared resource: you can
open the video node multiple times, each application setting up their open the video node multiple times, each application setting up their
own codec properties that are local to the file handle, and each can use own codec properties that are local to the file handle, and each can use
it independently from the others. The driver will arbitrate access to it independently from the others. The driver will arbitrate access to
......
...@@ -2846,7 +2846,7 @@ JPEG Control IDs ...@@ -2846,7 +2846,7 @@ JPEG Control IDs
input image is sampled, in respect to maximum sample rate in each input image is sampled, in respect to maximum sample rate in each
spatial dimension. See :ref:`itu-t81`, clause A.1.1. for more spatial dimension. See :ref:`itu-t81`, clause A.1.1. for more
details. The ``V4L2_CID_JPEG_CHROMA_SUBSAMPLING`` control determines details. The ``V4L2_CID_JPEG_CHROMA_SUBSAMPLING`` control determines
how Cb and Cr components are downsampled after coverting an input how Cb and Cr components are downsampled after converting an input
image from RGB to Y'CbCr color space. image from RGB to Y'CbCr color space.
.. tabularcolumns:: |p{7.0cm}|p{10.5cm}| .. tabularcolumns:: |p{7.0cm}|p{10.5cm}|
...@@ -3017,6 +3017,10 @@ Image Process Control IDs ...@@ -3017,6 +3017,10 @@ Image Process Control IDs
test pattern images. These hardware specific test patterns can be test pattern images. These hardware specific test patterns can be
used to test if a device is working properly. used to test if a device is working properly.
``V4L2_CID_DEINTERLACING_MODE (menu)``
The video deinterlacing mode (such as Bob, Weave, ...). The menu items are
driver specific and are documented in :ref:`v4l-drivers`.
.. _dv-controls: .. _dv-controls:
......
.. -*- coding: utf-8; mode: rst -*-
.. _hsv-formats:
***********
HSV Formats
***********
These formats store the color information of the image
in a geometrical representation. The colors are mapped into a
cylinder, where the angle is the HUE, the height is the VALUE
and the distance to the center is the SATURATION. This is a very
useful format for image segmentation algorithms.
.. toctree::
:maxdepth: 1
pixfmt-packed-hsv
...@@ -121,6 +121,11 @@ Single-planar format structure ...@@ -121,6 +121,11 @@ Single-planar format structure
- This information supplements the ``colorspace`` and must be set by - This information supplements the ``colorspace`` and must be set by
the driver for capture streams and by the application for output the driver for capture streams and by the application for output
streams, see :ref:`colorspaces`. streams, see :ref:`colorspaces`.
* - enum :c:type:`v4l2_hsv_encoding`
- ``hsv_enc``
- This information supplements the ``colorspace`` and must be set by
the driver for capture streams and by the application for output
streams, see :ref:`colorspaces`.
* - enum :c:type:`v4l2_quantization` * - enum :c:type:`v4l2_quantization`
- ``quantization`` - ``quantization``
- This information supplements the ``colorspace`` and must be set by - This information supplements the ``colorspace`` and must be set by
......
...@@ -78,6 +78,11 @@ describing all planes of that format. ...@@ -78,6 +78,11 @@ describing all planes of that format.
- This information supplements the ``colorspace`` and must be set by - This information supplements the ``colorspace`` and must be set by
the driver for capture streams and by the application for output the driver for capture streams and by the application for output
streams, see :ref:`colorspaces`. streams, see :ref:`colorspaces`.
* - enum :c:type:`v4l2_hsv_encoding`
- ``hsv_enc``
- This information supplements the ``colorspace`` and must be set by
the driver for capture streams and by the application for output
streams, see :ref:`colorspaces`.
* - enum :c:type:`v4l2_quantization` * - enum :c:type:`v4l2_quantization`
- ``quantization`` - ``quantization``
- This information supplements the ``colorspace`` and must be set by - This information supplements the ``colorspace`` and must be set by
......
...@@ -19,9 +19,16 @@ colorspace field of struct :c:type:`v4l2_pix_format` ...@@ -19,9 +19,16 @@ colorspace field of struct :c:type:`v4l2_pix_format`
or struct :c:type:`v4l2_pix_format_mplane` or struct :c:type:`v4l2_pix_format_mplane`
needs to be filled in. needs to be filled in.
.. note:: .. _hsv-colorspace:
The default R'G'B' quantization is full range for all On :ref:`HSV formats <hsv-formats>` the *Hue* is defined as the angle on
the cylindrical color representation. Usually this angle is measured in
degrees, i.e. 0-360. When we map this angle value into 8 bits, there are
two basic ways to do it: Divide the angular value by 2 (0-179), or use the
whole range, 0-255, dividing the angular value by 1.41. The enum
:c:type:`v4l2_hsv_encoding` specifies which encoding is used.
.. note:: The default R'G'B' quantization is full range for all
colorspaces except for BT.2020 which uses limited range R'G'B' colorspaces except for BT.2020 which uses limited range R'G'B'
quantization. quantization.
...@@ -123,6 +130,24 @@ needs to be filled in. ...@@ -123,6 +130,24 @@ needs to be filled in.
.. c:type:: v4l2_hsv_encoding
.. tabularcolumns:: |p{6.5cm}|p{11.0cm}|
.. flat-table:: V4L2 HSV Encodings
:header-rows: 1
:stub-columns: 0
* - Identifier
- Details
* - ``V4L2_HSV_ENC_180``
- For the Hue, each LSB is two degrees.
* - ``V4L2_HSV_ENC_256``
- For the Hue, the 360 degrees are mapped into 8 bits, i.e. each
LSB is roughly 1.41 degrees.
.. c:type:: v4l2_quantization .. c:type:: v4l2_quantization
.. tabularcolumns:: |p{6.5cm}|p{11.0cm}| .. tabularcolumns:: |p{6.5cm}|p{11.0cm}|
...@@ -136,7 +161,7 @@ needs to be filled in. ...@@ -136,7 +161,7 @@ needs to be filled in.
* - ``V4L2_QUANTIZATION_DEFAULT`` * - ``V4L2_QUANTIZATION_DEFAULT``
- Use the default quantization encoding as defined by the - Use the default quantization encoding as defined by the
colorspace. This is always full range for R'G'B' (except for the colorspace. This is always full range for R'G'B' (except for the
BT.2020 colorspace) and usually limited range for Y'CbCr. BT.2020 colorspace) and HSV. It is usually limited range for Y'CbCr.
* - ``V4L2_QUANTIZATION_FULL_RANGE`` * - ``V4L2_QUANTIZATION_FULL_RANGE``
- Use the full range quantization encoding. I.e. the range [0…1] is - Use the full range quantization encoding. I.e. the range [0…1] is
mapped to [0…255] (with possible clipping to [1…254] to avoid the mapped to [0…255] (with possible clipping to [1…254] to avoid the
......
...@@ -85,3 +85,8 @@ Compressed Formats ...@@ -85,3 +85,8 @@ Compressed Formats
- ``V4L2_PIX_FMT_VP8`` - ``V4L2_PIX_FMT_VP8``
- 'VP80' - 'VP80'
- VP8 video elementary stream. - VP8 video elementary stream.
* .. _V4L2-PIX-FMT-VP9:
- ``V4L2_PIX_FMT_VP9``
- 'VP90'
- VP9 video elementary stream.
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...@@ -234,7 +234,15 @@ please make a proposal on the linux-media mailing list. ...@@ -234,7 +234,15 @@ please make a proposal on the linux-media mailing list.
repeated for each line, i.e. the number of entries in the pointer repeated for each line, i.e. the number of entries in the pointer
array. Anything what's in between the UYVY lines is JPEG data and array. Anything what's in between the UYVY lines is JPEG data and
should be concatenated to form the JPEG stream. should be concatenated to form the JPEG stream.
* .. _V4L2-PIX-FMT-MT21C:
- ``V4L2_PIX_FMT_MT21C``
- 'MT21'
- Compressed two-planar YVU420 format used by Mediatek MT8173.
The compression is lossless.
It is an opaque intermediate format and the MDP hardware must be
used to convert ``V4L2_PIX_FMT_MT21C`` to ``V4L2_PIX_FMT_NV12M``,
``V4L2_PIX_FMT_YUV420M`` or ``V4L2_PIX_FMT_YVU420``.
.. tabularcolumns:: |p{6.6cm}|p{2.2cm}|p{8.7cm}| .. tabularcolumns:: |p{6.6cm}|p{2.2cm}|p{8.7cm}|
......
...@@ -12,9 +12,9 @@ RGB Formats ...@@ -12,9 +12,9 @@ RGB Formats
pixfmt-packed-rgb pixfmt-packed-rgb
pixfmt-srggb8 pixfmt-srggb8
pixfmt-sbggr16
pixfmt-srggb10 pixfmt-srggb10
pixfmt-srggb10p pixfmt-srggb10p
pixfmt-srggb10alaw8 pixfmt-srggb10alaw8
pixfmt-srggb10dpcm8 pixfmt-srggb10dpcm8
pixfmt-srggb12 pixfmt-srggb12
pixfmt-srggb16
...@@ -28,7 +28,7 @@ bits of each pixel, in the same order. ...@@ -28,7 +28,7 @@ bits of each pixel, in the same order.
Each n-pixel row contains n/2 green samples and n/2 blue or red samples, Each n-pixel row contains n/2 green samples and n/2 blue or red samples,
with alternating green-red and green-blue rows. They are conventionally with alternating green-red and green-blue rows. They are conventionally
described as GRGR... BGBG..., RGRG... GBGB..., etc. Below is an example described as GRGR... BGBG..., RGRG... GBGB..., etc. Below is an example
of one of these formats: of a small V4L2_PIX_FMT_SBGGR10P image:
**Byte Order.** **Byte Order.**
Each cell is one byte. Each cell is one byte.
......
...@@ -26,7 +26,7 @@ high bits filled with zeros. Each n-pixel row contains n/2 green samples ...@@ -26,7 +26,7 @@ high bits filled with zeros. Each n-pixel row contains n/2 green samples
and n/2 blue or red samples, with alternating red and blue rows. Bytes and n/2 blue or red samples, with alternating red and blue rows. Bytes
are stored in memory in little endian order. They are conventionally are stored in memory in little endian order. They are conventionally
described as GRGR... BGBG..., RGRG... GBGB..., etc. Below is an example described as GRGR... BGBG..., RGRG... GBGB..., etc. Below is an example
of one of these formats: of a small V4L2_PIX_FMT_SBGGR12 image:
**Byte Order.** **Byte Order.**
Each cell is one byte, the 4 most significant bits in the high bytes are Each cell is one byte, the 4 most significant bits in the high bytes are
......
...@@ -29,6 +29,7 @@ see also :ref:`VIDIOC_G_FBUF <VIDIOC_G_FBUF>`.) ...@@ -29,6 +29,7 @@ see also :ref:`VIDIOC_G_FBUF <VIDIOC_G_FBUF>`.)
pixfmt-indexed pixfmt-indexed
pixfmt-rgb pixfmt-rgb
yuv-formats yuv-formats
hsv-formats
depth-formats depth-formats
pixfmt-013 pixfmt-013
sdr-formats sdr-formats
......
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