Searched hist:"30 c53a72426366d0a4eb4aa396c37b8fd048a82a" (Results 1 – 4 of 4) sorted by relevance
| /optee_os/core/include/kernel/ |
| H A D | rpc_io_i2c.h | 30c53a72426366d0a4eb4aa396c37b8fd048a82a Mon Jun 15 13:11:31 UTC 2020 Jorge Ramirez-Ortiz <jorge@foundries.io> core: arm: rpc i2c trampoline driver
Gives OP-TEE access to the i2c buses initialized and controlled by the
REE kernel. This is done by memory mapping a buffer from the thread's
cache where the input or output data is transferred.
Using this mechanism, OP-TEE clients do not have to worry about REE
RUNTIME_PM features switching off clocks from the controllers or
collisions with other bus masters.
This driver assumes that the I2C chip is on a REE statically assigned
bus which value is known to OP-TEE (it will not query/probe the REE).
The slave address can be either seven or ten bits. When using a ten
bit address, the corresponding flag needs to be set in the command and
the REE adapter must support the requested addressing mode.
Signed-off-by: Jorge Ramirez-Ortiz <jorge@foundries.io>
Reviewed-by: Jens Wiklander <jens.wiklander@linaro.org>
Reviewed-by: Etienne Carriere <etienne.carriere@linaro.org>
|
| /optee_os/core/arch/arm/kernel/ |
| H A D | rpc_io_i2c.c | 30c53a72426366d0a4eb4aa396c37b8fd048a82a Mon Jun 15 13:11:31 UTC 2020 Jorge Ramirez-Ortiz <jorge@foundries.io> core: arm: rpc i2c trampoline driver
Gives OP-TEE access to the i2c buses initialized and controlled by the
REE kernel. This is done by memory mapping a buffer from the thread's
cache where the input or output data is transferred.
Using this mechanism, OP-TEE clients do not have to worry about REE
RUNTIME_PM features switching off clocks from the controllers or
collisions with other bus masters.
This driver assumes that the I2C chip is on a REE statically assigned
bus which value is known to OP-TEE (it will not query/probe the REE).
The slave address can be either seven or ten bits. When using a ten
bit address, the corresponding flag needs to be set in the command and
the REE adapter must support the requested addressing mode.
Signed-off-by: Jorge Ramirez-Ortiz <jorge@foundries.io>
Reviewed-by: Jens Wiklander <jens.wiklander@linaro.org>
Reviewed-by: Etienne Carriere <etienne.carriere@linaro.org>
|
| H A D | sub.mk | 30c53a72426366d0a4eb4aa396c37b8fd048a82a Mon Jun 15 13:11:31 UTC 2020 Jorge Ramirez-Ortiz <jorge@foundries.io> core: arm: rpc i2c trampoline driver
Gives OP-TEE access to the i2c buses initialized and controlled by the
REE kernel. This is done by memory mapping a buffer from the thread's
cache where the input or output data is transferred.
Using this mechanism, OP-TEE clients do not have to worry about REE
RUNTIME_PM features switching off clocks from the controllers or
collisions with other bus masters.
This driver assumes that the I2C chip is on a REE statically assigned
bus which value is known to OP-TEE (it will not query/probe the REE).
The slave address can be either seven or ten bits. When using a ten
bit address, the corresponding flag needs to be set in the command and
the REE adapter must support the requested addressing mode.
Signed-off-by: Jorge Ramirez-Ortiz <jorge@foundries.io>
Reviewed-by: Jens Wiklander <jens.wiklander@linaro.org>
Reviewed-by: Etienne Carriere <etienne.carriere@linaro.org>
|
| /optee_os/core/include/ |
| H A D | optee_rpc_cmd.h | 30c53a72426366d0a4eb4aa396c37b8fd048a82a Mon Jun 15 13:11:31 UTC 2020 Jorge Ramirez-Ortiz <jorge@foundries.io> core: arm: rpc i2c trampoline driver
Gives OP-TEE access to the i2c buses initialized and controlled by the
REE kernel. This is done by memory mapping a buffer from the thread's
cache where the input or output data is transferred.
Using this mechanism, OP-TEE clients do not have to worry about REE
RUNTIME_PM features switching off clocks from the controllers or
collisions with other bus masters.
This driver assumes that the I2C chip is on a REE statically assigned
bus which value is known to OP-TEE (it will not query/probe the REE).
The slave address can be either seven or ten bits. When using a ten
bit address, the corresponding flag needs to be set in the command and
the REE adapter must support the requested addressing mode.
Signed-off-by: Jorge Ramirez-Ortiz <jorge@foundries.io>
Reviewed-by: Jens Wiklander <jens.wiklander@linaro.org>
Reviewed-by: Etienne Carriere <etienne.carriere@linaro.org>
|