core: serial: add rx_intr_{enable,disable}() callbacks

Add optional callbacks to enable and disable receive interrupts from a
serial device.

Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org

core: serial: add rx_intr_{enable,disable}() callbacks

Add optional callbacks to enable and disable receive interrupts from a
serial device.

Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>
Reviewed-by: Jerome Forissier <jerome.forissier@linaro.org>

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drivers: struct serial_ops: make all functions optional except putc()

Many platforms only use the putc() function pointer in struct
serial_ops. Therefore, explicitly make the others optional (flush(

drivers: struct serial_ops: make all functions optional except putc()

Many platforms only use the putc() function pointer in struct
serial_ops. Therefore, explicitly make the others optional (flush(),
have_rx_data() and getchar()) by adding comments to the struct and
making sure the code checks the pointer before using them.

With this it should be clear that drivers do not need to provide
stub functions.

Signed-off-by: Jerome Forissier <jerome.forissier@linaro.org>
Acked-by: Jens Wiklander <jens.wiklander@linaro.org>
Reviewed-by: Etienne Carriere <etienne.carriere@linaro.org>

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core: move io_pa_va support out of serial drivers

io_pa_or_va() is generic enough to be useful for non serial driver
matters. Move it to core_mem_prot.h.

Signed-off-by: Etienne Carriere <etienne.ca

core: move io_pa_va support out of serial drivers

io_pa_or_va() is generic enough to be useful for non serial driver
matters. Move it to core_mem_prot.h.

Signed-off-by: Etienne Carriere <etienne.carriere@st.com>
Acked-by: Jerome Forissier <jerome.forissier@linaro.org>

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Remove 'All rights reserved' from Linaro files

The text 'All rights reserved' is useless [1]. The Free Software
Foundation's REUSE Initiative best practices document [2] does not
contain these words

Remove 'All rights reserved' from Linaro files

The text 'All rights reserved' is useless [1]. The Free Software
Foundation's REUSE Initiative best practices document [2] does not
contain these words. Therefore, we can safely remove the text from the
files that are owned by Linaro.

Generated by:
spdxify.py --linaro-only --strip-arr optee_os/

Link: [1] https://en.wikipedia.org/wiki/All_rights_reserved
Link: [2] https://reuse.software/practices/
Link: [3] https://github.com/jforissier/misc/blob/f7b56c8/spdxify.py
Signed-off-by: Jerome Forissier <jerome.forissier@linaro.org>
Acked-by: Joakim Bech <joakim.bech@linaro.org>

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Remove license notice from Linaro files

Now that we have added SPDX identifiers, we can safely remove the
verbose license text from the files that are owned by Linaro.

Generated by [1]:
spdxify.p

Remove license notice from Linaro files

Now that we have added SPDX identifiers, we can safely remove the
verbose license text from the files that are owned by Linaro.

Generated by [1]:
spdxify.py --linaro-only --strip-license-text optee_os/

Link: [1] https://github.com/jforissier/misc/blob/f7b56c8/spdxify.py
Signed-off-by: Jerome Forissier <jerome.forissier@linaro.org>
Acked-by: Joakim Bech <joakim.bech@linaro.org>

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Add SPDX license identifiers

Adds one SPDX-License-Identifier line [1] to each source files that
contains license text.

Generated by [2]:
spdxify.py --add-spdx optee_os/

The scancode tool [3] wa

Add SPDX license identifiers

Adds one SPDX-License-Identifier line [1] to each source files that
contains license text.

Generated by [2]:
spdxify.py --add-spdx optee_os/

The scancode tool [3] was used to double check the license matching
code in the Python script. All the licenses detected by scancode are
either detected by spdxify.py, or have no SPDX identifier, or are false
matches.

Link: [1] https://spdx.org/licenses/
Link: [2] https://github.com/jforissier/misc/blob/f7b56c8/spdxify.py
Link: [3] https://github.com/nexB/scancode-toolkit
Signed-off-by: Jerome Forissier <jerome.forissier@linaro.org>
Acked-by: Joakim Bech <joakim.bech@linaro.org>

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dt: Introduce struct serial_driver

Add struct serial_driver which will be useful to UART drivers that
want to create devices from a DT node.

Signed-off-by: Jerome Forissier <jerome.forissier@linaro

dt: Introduce struct serial_driver

Add struct serial_driver which will be useful to UART drivers that
want to create devices from a DT node.

Signed-off-by: Jerome Forissier <jerome.forissier@linaro.org>
Reviewed-by: Etienne Carriere <etienne.carriere@linaro.org>
Reviewed-by: Jens Wiklander <jens.wiklander@linaro.org>

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drivers: serial: introduce struct io_pa_va

UART drivers typically need to be able to work with the MMU enabled or
disabled (for instance, to support the early console). Introduce a
structure that co

drivers: serial: introduce struct io_pa_va

UART drivers typically need to be able to work with the MMU enabled or
disabled (for instance, to support the early console). Introduce a
structure that contains both a PA and a VA, as well as a helper
function to better abstract a device address.

Signed-off-by: Jerome Forissier <jerome.forissier@linaro.org>
Reviewed-by: Jens Wiklander <jens.wiklander@linaro.org>
Reviewed-by: Etienne Carriere <etienne.carriere@linaro.org>

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serial.h: add missing #include <stdbool.h>

Signed-off-by: Jerome Forissier <jerome.forissier@linaro.org>
Reviewed-by: Jens Wiklander <jens.wiklander@linaro.org>
Reviewed-by: Etienne Carriere <etienn

serial.h: add missing #include <stdbool.h>

Signed-off-by: Jerome Forissier <jerome.forissier@linaro.org>
Reviewed-by: Jens Wiklander <jens.wiklander@linaro.org>
Reviewed-by: Etienne Carriere <etienne.carriere@linaro.org>

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core: add serial abstraction

Adds an abstraction for a serial device.

Reviewed-by: etienne carriere <etienne.carriere@linaro.org>
Reviewed-by: David Brown <david.brown@linaro.org>
Signed-off-by: Je

core: add serial abstraction

Adds an abstraction for a serial device.

Reviewed-by: etienne carriere <etienne.carriere@linaro.org>
Reviewed-by: David Brown <david.brown@linaro.org>
Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>

show more ...