zephyr: Move all I2C configs into a separate file

Move the I2C related Kconfigs to a separate file.

BUG=none
BRANCH=none
TEST=zmake testall

Signed-off-by: Keith Short <keithshort@chromium.org>
Change-Id: Ic5518c7209217e88677a8818d3793ddc58c2d41f
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/3575081
Reviewed-by: Sam Hurst <shurst@google.com>

1 files changed, 86 insertions, 0 deletions

diff --git a/zephyr/Kconfig.i2c b/zephyr/Kconfig.i2c
new file mode 100644
index 0000000000..ca1e39914c
--- /dev/null
+++ b/zephyr/Kconfig.i2c
@@ -0,0 +1,86 @@
+# Copyright 2022 The Chromium OS Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+config PLATFORM_EC_I2C
+	bool "I2C shim"
+	default n if ARCH_POSIX
+	default y
+	imply I2C
+	help
+	  Enable compilation of the EC i2c module. Once enabled, it will be
+	  possible to make calls using the old platform/ec i2c APIs defined
+	  in include/i2c.h and implemented in common/i2c_controller.c. Doing so
+	  should make shimming other platform/ec modules which rely on i2c
+	  communication "just work" without requiring any further code changes.
+
+config PLATFORM_EC_I2C_DEBUG
+	bool "I2C Tracing"
+	default n if ARCH_POSIX
+	depends on PLATFORM_EC_I2C
+	help
+	  This option enables I2C bus communication tracing. Use the console
+	  command "i2ctrace" to enable and disable tracing on specific I2C
+	  peripherals.
+
+	  Please see the I2C debugging documentation for more details:
+
+	  https://source.chromium.org/chromiumos/chromiumos/codesearch/+/main:src/platform/ec/docs/i2c-debugging.md
+
+config PLATFORM_EC_I2C_PASSTHRU_RESTRICTED
+	bool "Restrict I2C PASSTHRU command"
+	depends on PLATFORM_EC_I2C
+	help
+	  Enables board-specific restrictions for the I2C PASSTHRU host command.
+	  Once enabled, board_allow_i2c_passthru function has to be implemented,
+	  which defines the allowed usage of the command.
+
+config PLATFORM_EC_I2C_DEBUG_PASSTHRU
+	bool "I2C Passthru Debug"
+	default n if ARCH_POSIX
+	depends on PLATFORM_EC_I2C
+	help
+	  This option enables extra debug for I2C passthru operations initiated
+	  by the AP.
+
+config PLATFORM_EC_CONSOLE_CMD_I2C_PORTMAP
+	bool "Console command: i2c_portmap"
+	default y
+	depends on PLATFORM_EC_I2C
+	help
+	  Enable the 'i2c_portmap' console command. This comamnd is used to
+	  display the mapping of the I2C ports defined by the named-i2c-ports
+	  node to the physical port and remote port indexes.
+
+config PLATFORM_EC_CONSOLE_CMD_I2C_SPEED
+	bool "Console command: i2cspeed"
+	default n
+	depends on PLATFORM_EC_I2C
+	help
+	  Enable the 'i2cspeed' console command. This comamnd is used to
+	  display an I2C port's bus speed. Additionally, for ports with
+	  the DYNAMIC_SPEED port flag set, the speed can be set. In all
+	  cases, the bus speed is in units of kHz.
+
+config PLATFORM_EC_HOSTCMD_I2C_CONTROL
+	bool "Host command: i2c_control"
+	default n
+	depends on PLATFORM_EC_I2C
+	help
+	  Enable the I2C_CONTROL host command. This comamnd is used to
+	  display an I2C port's bus speed. Additionally, for ports with
+	  the DYNAMIC_SPEED port flag set, the speed can be set. In all
+	  cases, the bus speed is in units of kHz. More functionality of
+	  the command may be added in the future.
+
+config PLATFORM_EC_SMBUS_PEC
+	bool "Packet error checking support for SMBus"
+	help
+	  If enabled, adds error checking support for i2c_readN, i2c_writeN,
+	  i2c_read_string and i2c_write_block. Where
+	  - write operation appends an error checking byte at end of transfer, and
+	  - read operatoin verifies the correctness of error checking byte from the
+	  peripheral.
+	  Set I2C_FLAG on addr_flags parameter to use this feature.
+
+	  This option also enables error checking function on smart batteries.