[PATCH v17 1/7] Documentation/firmware: add imx/se to other_interfaces

[Bagas Sanjaya]

On Sat, Apr 26, 2025 at 12:31:32AM +0530, Pankaj Gupta wrote:
> +Each 'se-if' comprise of twp layers:
> +- (C_DEV Layer) User-Space software-access interface.
> +- (Service Layer) OS-level software-access interface.
> +
> +   +--------------------------------------------+
> +   |            Character Device(C_DEV)         |
> +   |                                            |
> +   |   +---------+ +---------+     +---------+  |
> +   |   | misc #1 | | misc #2 | ... | misc #n |  |
> +   |   |  dev    | |  dev    |     | dev     |  |
> +   |   +---------+ +---------+     +---------+  |
> +   |        +-------------------------+         |
> +   |        | Misc. Dev Synchr. Logic |         |
> +   |        +-------------------------+         |
> +   |                                            |
> +   +--------------------------------------------+
> +
> +   +--------------------------------------------+
> +   |               Service Layer                |
> +   |                                            |
> +   |      +-----------------------------+       |
> +   |      | Message Serialization Logic |       |
> +   |      +-----------------------------+       |
> +   |          +---------------+                 |
> +   |          |  imx-mailbox  |                 |
> +   |          |   mailbox.c   |                 |
> +   |          +---------------+                 |
> +   |                                            |
> +   +--------------------------------------------+
> +
> <snipped>
> +
> +  Misc-device(/dev/<se>_mux_chn) synchronization protocol:
> +
> +                                Non-Secure               +   Secure
> +                                                         |
> +                                                         |
> +                  +---------+      +-------------+       |
> +                  | se_fw.c +<---->+imx-mailbox.c|       |
> +                  |         |      |  mailbox.c  +<-->+------+    +------+
> +                  +---+-----+      +-------------+    | MU X +<-->+ ELE |
> +                      |                               +------+    +------+
> +                      +----------------+                 |
> +                      |                |                 |
> +                      v                v                 |
> +                  logical           logical              |
> +                  receiver          waiter               |
> +                     +                 +                 |
> +                     |                 |                 |
> +                     |                 |                 |
> +                     |            +----+------+          |
> +                     |            |           |          |
> +                     |            |           |          |
> +              device_ctx     device_ctx     device_ctx   |
> +                                                         |
> +                User 0        User 1       User Y        |
> +                +------+      +------+     +------+      |
> +                |misc.c|      |misc.c|     |misc.c|      |
> + kernel space   +------+      +------+     +------+      |
> +                                                         |
> + +------------------------------------------------------ |
> +                    |             |           |          |
> + userspace     /dev/ele_muXch0    |           |          |
> +                          /dev/ele_muXch1     |          |
> +                                        /dev/ele_muXchY  |
> +                                                         |
> +

Wrap both diagrams above in literal code block (use double-colon).

Thanks.

-- 
An old man doll... just what I always wanted! - Clara
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