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resources:tools-software:linuxdsp:docs:linux-kernel-and-drivers:mcapi:control_sharc_cores [24 Jul 2020 11:12] Sunny Feng created |
resources:tools-software:linuxdsp:docs:linux-kernel-and-drivers:mcapi:control_sharc_cores [10 Dec 2020 10:46] Sunny Feng [Example - Use corectrl device from source code] |
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| === The corectrl Device === | === The corectrl Device === | ||
| - | + | Enable the core control driver by using the below command: | |
| - | A new corectrl device has been created to allow Linux user to enable and disable the SHARC cores. See icc.h for macro values. | + | <code> |
| + | $ bitbake linux-adi -c menuconfig | ||
| + | CONFIG_CORE_CONTROL: | ||
| + | ICC core control, control the DSP devices at the side of ARM Core, which | ||
| + | provides some commands e.g. Start, Stop, and Set the vector value | ||
| + | Symbol: CORE_CONTROL [=y] | ||
| + | Type : bool | ||
| + | Prompt: icc core control | ||
| + | Location: | ||
| + | -> Device Drivers | ||
| + | -> Staging drivers (STAGING [=y]) | ||
| + | -> icc driver (ICC [=y]) | ||
| + | </code> | ||
| + | A new corectrl device would be created to allow Linux user to enable and disable the SHARC cores. See icc.h for macro values. | ||
| The device, /dev/corectrl, supports the following ioctl requests: | The device, /dev/corectrl, supports the following ioctl requests: | ||
| Line 54: | Line 67: | ||
| :The number of the core to start or stop. Values accepted are CCTRL_CORE1 and CCTRL_CORE2. | :The number of the core to start or stop. Values accepted are CCTRL_CORE1 and CCTRL_CORE2. | ||
| - | === Usage Example === | + | ==== Example: Use corectrl device from source code ==== |
| An example to enable both cores is as follows: | An example to enable both cores is as follows: | ||
| Line 86: | Line 99: | ||
| \\ | \\ | ||
| - | ==== Usage Example ==== | + | ==== Example: Use corecontrol from user space ==== |
| <code> | <code> | ||
resources/tools-software/linuxdsp/docs/linux-kernel-and-drivers/mcapi/control_sharc_cores.txt · Last modified: 10 Dec 2020 10:46 by Sunny Feng