8974c248cf
Use the RTIO work queue to fake the i2c submit calls for drivers which haven't yet implemented the API. Applications can change the size of the work queue pool depending on how much traffic they have on the buses. Signed-off-by: Yuval Peress <peress@google.com>
230 lines
5.9 KiB
Plaintext
230 lines
5.9 KiB
Plaintext
# I2C configuration options
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# Copyright (c) 2015 Intel Corporation
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# SPDX-License-Identifier: Apache-2.0
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#
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# I2C options
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#
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menuconfig I2C
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bool "Inter-Integrated Circuit (I2C) bus drivers"
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help
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Enable I2C Driver Configuration
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if I2C
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config I2C_SHELL
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bool "I2C Shell"
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depends on SHELL
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help
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Enable I2C Shell.
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The I2C shell supports scanning, bus recovery, I2C read and write
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operations.
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config I2C_STATS
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bool "I2C device Stats"
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depends on STATS
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help
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Enable I2C Stats.
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config I2C_DUMP_MESSAGES
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bool "Log I2C transactions"
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depends on LOG
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depends on I2C_LOG_LEVEL_DBG
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help
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Dump every I2C transaction to the system log as debug level log messages.
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config I2C_DUMP_MESSAGES_ALLOWLIST
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bool "Use allowlist for logging of I2C transactions"
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depends on I2C_DUMP_MESSAGES
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depends on DT_HAS_ZEPHYR_I2C_DUMP_ALLOWLIST_ENABLED
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help
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Use allowlist to specify which devices transactions should be logged.
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The allowlist is defined in the devicetree using the compatible string of
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"zephyr,i2c-dump-allowlist" and phandles to the devices that need to be traced.
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Example of devicetree node:
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i2c-dump-allowlist {
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compatible = "zephyr,i2c-dump-allowlist";
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devices = < &display0 >, < &sensor3 >;
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};
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config I2C_CALLBACK
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bool "I2C asynchronous callback API"
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help
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API and implementations of i2c_transfer_cb.
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config I2C_RTIO
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bool "I2C RTIO API"
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select EXPERIMENTAL
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select RTIO
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select RTIO_WORKQ
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help
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API and implementations of I2C for RTIO
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if I2C_RTIO
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config I2C_RTIO_SQ_SIZE
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int "Submission queue size for blocking calls"
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default 4
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help
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Blocking i2c calls when I2C_RTIO is enabled are copied into a per driver
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submission queue. The queue depth determines the number of possible i2c_msg
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structs that may be in the array given to i2c_transfer. A sensible default
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is going to be 4 given the device address, register address, and a value
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to be read or written.
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config I2C_RTIO_CQ_SIZE
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int "Completion queue size for blocking calls"
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default 4
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help
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Blocking i2c calls when I2C_RTIO is enabled are copied into a per driver
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submission queue. The queue depth determines the number of possible i2c_msg
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structs that may be in the array given to i2c_transfer. A sensible default
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is going to be 4 given the device address, register address, and a value
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to be read or written.
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endif # I2C_RTIO
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# Include these first so that any properties (e.g. defaults) below can be
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# overridden (by defining symbols in multiple locations)
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source "drivers/i2c/Kconfig.b91"
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source "drivers/i2c/Kconfig.bcm_iproc"
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source "drivers/i2c/Kconfig.cc13xx_cc26xx"
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source "drivers/i2c/Kconfig.dw"
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source "drivers/i2c/Kconfig.esp32"
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source "drivers/i2c/target/Kconfig"
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source "drivers/i2c/Kconfig.gpio"
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source "drivers/i2c/Kconfig.xec"
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source "drivers/i2c/Kconfig.nrfx"
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source "drivers/i2c/Kconfig.i2c_emul"
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source "drivers/i2c/Kconfig.it8xxx2"
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source "drivers/i2c/Kconfig.sbcon"
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source "drivers/i2c/Kconfig.sifive"
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source "drivers/i2c/Kconfig.stm32"
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source "drivers/i2c/Kconfig.sam0"
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source "drivers/i2c/Kconfig.sam_twihs"
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source "drivers/i2c/Kconfig.litex"
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source "drivers/i2c/Kconfig.lpc11u6x"
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source "drivers/i2c/Kconfig.npcx"
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source "drivers/i2c/Kconfig.test"
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source "drivers/i2c/Kconfig.rcar"
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source "drivers/i2c/Kconfig.renesas_ra"
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source "drivers/i2c/Kconfig.tca954x"
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source "drivers/i2c/Kconfig.gd32"
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source "drivers/i2c/Kconfig.ifx_cat1"
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source "drivers/i2c/Kconfig.ifx_xmc4"
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source "drivers/i2c/Kconfig.andes_atciic100"
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source "drivers/i2c/Kconfig.sc18im704"
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source "drivers/i2c/Kconfig.smartbond"
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source "drivers/i2c/Kconfig.xilinx_axi"
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source "drivers/i2c/Kconfig.mchp_mss"
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source "drivers/i2c/Kconfig.sedi"
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source "drivers/i2c/Kconfig.ambiq"
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source "drivers/i2c/Kconfig.numaker"
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source "drivers/i2c/Kconfig.mcux"
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source "drivers/i2c/Kconfig.ene"
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source "drivers/i2c/Kconfig.max32"
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config I2C_INIT_PRIORITY
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int "Init priority"
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default KERNEL_INIT_PRIORITY_DEVICE
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help
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I2C device driver initialization priority.
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module = I2C
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module-str = i2c
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source "subsys/logging/Kconfig.template.log_config"
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config I2C_GECKO
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bool "Gecko I2C driver"
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default y
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depends on DT_HAS_SILABS_GECKO_I2C_ENABLED
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select SOC_GECKO_I2C
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help
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Enable the SiLabs Gecko I2C bus driver.
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config I2C_SAM_TWIM
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bool "Atmel SAM (TWIM) I2C driver"
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default y
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depends on DT_HAS_ATMEL_SAM_I2C_TWIM_ENABLED
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help
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Enable Atmel SAM MCU Family (TWIM) I2C bus driver.
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config I2C_SAM_TWI
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bool "Atmel SAM (TWI) I2C driver"
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default y
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depends on DT_HAS_ATMEL_SAM_I2C_TWI_ENABLED
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help
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Enable Atmel SAM MCU Family (TWI) I2C bus driver.
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config I2C_MCUX
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bool "MCUX I2C driver"
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default y
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depends on DT_HAS_NXP_KINETIS_I2C_ENABLED
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select PINCTRL
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help
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Enable the mcux I2C driver.
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config I2C_MCUX_LPI2C
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bool "MCUX LPI2C driver"
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default y
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depends on DT_HAS_NXP_IMX_LPI2C_ENABLED
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depends on CLOCK_CONTROL
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select PINCTRL
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help
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Enable the mcux LPI2C driver.
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config I2C_MCUX_LPI2C_BUS_RECOVERY
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bool "Bus recovery support"
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depends on I2C_MCUX_LPI2C && PINCTRL
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select I2C_BITBANG
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help
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Enable LPI2C driver bus recovery support via GPIO bitbanging.
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config I2C_IMX
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bool "i.MX I2C driver"
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default y
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depends on DT_HAS_FSL_IMX21_I2C_ENABLED
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help
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Enable the i.MX I2C driver.
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config I2C_CC32XX
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bool "CC32XX I2C driver"
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default y
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depends on DT_HAS_TI_CC32XX_I2C_ENABLED
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select PINCTRL
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help
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Enable the CC32XX I2C driver.
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config I2C_BITBANG
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bool
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help
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Enable library used for software driven (bit banging) I2C support
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config I2C_NIOS2
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bool "Nios-II I2C driver"
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default y
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depends on DT_HAS_ALTR_NIOS2_I2C_ENABLED
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help
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Enable the Nios-II I2C driver.
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config I2C_RV32M1_LPI2C
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bool "RV32M1 LPI2C driver"
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default y
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depends on DT_HAS_OPENISA_RV32M1_LPI2C_ENABLED
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depends on CLOCK_CONTROL
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select PINCTRL
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help
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Enable the RV32M1 LPI2C driver.
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config GPIO_I2C_SWITCH
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bool "GPIO controlled I2C bus switch"
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default y
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depends on DT_HAS_GPIO_I2C_SWITCH_ENABLED
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help
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Enable GPIO controlled I2C bus switch driver.
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endif # I2C
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