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Feature/gpio host control (EHM-101) #98

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9719295
host/api: add esp_hosted_gpio.h
ytarkhan Aug 28, 2025
e58c061
host/port: add GPIO implementation (rename for consistency)
ytarkhan Aug 28, 2025
6ac0bae
proto: add GPIO RPC messages; regenerate pb-c stubs
ytarkhan Aug 28, 2025
09ef279
host/rpc: add GPIO request/response plumbing + wrappers
ytarkhan Aug 28, 2025
5fc2f3e
slave_control.c
ytarkhan Aug 28, 2025
a2d3e07
+ #include "driver/gpio.h" in rpc_slave_if.h
ytarkhan Aug 29, 2025
0544bbc
+transport_gpio_pin_guard
ytarkhan Aug 29, 2025
47a5b55
+ Controlled esp_hosted_gpio exposure with Kconfig
ytarkhan Aug 29, 2025
be57682
added port_esp_hosted_host_gpio.c to CMakeLists
ytarkhan Aug 29, 2025
97dc207
rebuilt with protobuf-c version 1.4.1
ytarkhan Sep 2, 2025
b8c821d
removed #ifdef ESP_PLATFORM
ytarkhan Sep 2, 2025
c102455
fixed typo
ytarkhan Sep 2, 2025
8845a6c
fixed white space
ytarkhan Sep 2, 2025
78c166b
Merge remote-tracking branch 'upstream/main' into
Oct 16, 2025
25ae4fc
Added #ifdefs
Oct 16, 2025
4a01be1
compiles again
Oct 16, 2025
e273a11
Fixed Kconfig on slave
Oct 16, 2025
1e15cc4
Fixed esp_hosted_rpc.proto
Oct 16, 2025
2ad1f22
Merge branch 'main' of https://github.com/espressif/esp-hosted-mcu in…
Oct 17, 2025
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3 changes: 2 additions & 1 deletion CMakeLists.txt
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Original file line number Diff line number Diff line change
Expand Up @@ -70,7 +70,8 @@ if(CONFIG_ESP_HOSTED_ENABLED)

# host ESP32 specific files
list(APPEND srcs "${host_dir}/port/esp/freertos/src/port_esp_hosted_host_ota.c")

list(APPEND srcs "${host_dir}/port/esp/freertos/src/port_esp_hosted_host_gpio.c")

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@SohKamYung-Espressif SohKamYung-Espressif Sep 1, 2025

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As with the co-processor, a compilation define can be added on the host side to only compile GPIO related code if needed.

Add this to the top level Kconfig, below config ESP_HOSTED_ENABLE_ITWT:

	config ESP_HOSTED_ENABLE_GPIO_CONTROL
		bool "Enable GPIO control on co-processor"
		default n
		help
			Enable RPC methods that allow the HOST MCU to configure and control GPIOs
			on the co-processor. Leave disabled unless you really need it.
			GPIO requests that target pins used by the active transport will be rejected.

This is then used to enable code compilation of the GPIO code:

  1. Modify CMakeLists.txt to conditionally compile GPIO related code:
	if(CONFIG_ESP_HOSTED_ENABLE_GPIO_CONTROL)
		list(APPEND srcs "${host_dir}/port/esp/freertos/src/port_esp_hosted_host_gpio.c")
    endif()
  1. Add a config option at the bottom of host/port/esp/freertos/include/port_esp_hosted_host_config.h:
#if CONFIG_ESP_HOSTED_ENABLE_GPIO_CONTROL
#define H_ENABLE_GPIO_CONTROL 1
#else
#define H_ENABLE_GPIO_CONTROL 0
#endif
  1. Surround GPIO related code with #if H_ENABLE_GPIO_CONTROL ... #endif

# cli
list(APPEND srcs "${common_dir}/utils/esp_hosted_cli.c")
list(APPEND priv_include "${common_dir}/utils")
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10,633 changes: 6,128 additions & 4,505 deletions common/proto/esp_hosted_rpc.pb-c.c
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