226 lines
5.2 KiB
Plaintext
226 lines
5.2 KiB
Plaintext
# Kconfig - I2C configuration options
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#
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# Copyright (c) 2015 Intel Corporation
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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#
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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
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prompt "I2C Drivers"
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default n
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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_DW
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bool "Design Ware I2C support"
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depends on I2C
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default n
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help
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Enable Design Ware I2C support on the selected board
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config I2C_QMSI_SS
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bool "QMSI I2C driver for the Sensor Subsystem"
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depends on I2C && QMSI
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default n
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help
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This option enable the Sensor QMSI I2C driver.
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This driver is simply a shim driver based on the I2C driver
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provided by the QMSI BSP.
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config I2C_QMSI
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bool "QMSI I2C driver"
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depends on I2C && QMSI
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default n
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help
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This option enable the QMSI I2C driver.
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This driver is simply a shim driver based on the I2C driver
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provided by the QMSI BSP.
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config I2C_ATMEL_SAM3
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bool "Atmel SAM3 I2C Driver"
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depends on I2C && SOC_ATMEL_SAM3
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default n
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help
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Enable I2C support on the Atmel SAM3 family processor.
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Says y to enable additional options to enable support
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for individual controllers.
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config I2C_KSDK
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bool "KSDK I2C driver"
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depends on I2C && HAS_KSDK
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default n
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help
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Enable the ksdk I2C driver.
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config I2C_INIT_PRIORITY
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int
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depends on I2C
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default 60
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prompt "Init priority"
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help
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I2C device driver initialization priority.
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config I2C_CLOCK_SPEED
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int "Set the clock speed for I2C"
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default 32
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depends on I2C
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config SYS_LOG_I2C_LEVEL
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int
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prompt "I2C log level"
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depends on I2C && SYS_LOG
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default 0
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help
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Sets log level for I2C connections
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Levels are:
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- 0 OFF, do not write
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- 1 ERROR, only write SYS_LOG_ERR
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- 2 WARNING, write SYS_LOG_WRN in adition to previous level
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- 3 INFO, write SYS_LOG_INF in adition to previous levels
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- 4 DEBUG, write SYS_LOG_DBG in adition to previous levels
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config I2C_SHARED_IRQ
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bool
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default n
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depends on I2C
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choice
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prompt "I2C_0 Interrupts via"
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default I2C_0_IRQ_DIRECT
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depends on I2C_0
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config I2C_0_IRQ_DIRECT
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bool "Direct Hardware Interrupt"
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help
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When interrupts fire, the driver's ISR function is being called directly.
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config I2C_0_IRQ_SHARED
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bool "Shared IRQ"
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depends on SHARED_IRQ
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select I2C_SHARED_IRQ
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help
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When interrupts fire, the shared IRQ driver is notified. Then the shared IRQ
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driver dispatches the interrupt to other drivers.
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endchoice
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config I2C_0_IRQ_SHARED_NAME
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string "Device name for Shared IRQ"
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depends on I2C_0 && I2C_0_IRQ_SHARED
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help
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Specify the device name for the shared IRQ driver. It is used to register
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this driver with the shared IRQ driver, so interrupts can be dispatched
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correctly.
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config I2C_0
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bool "Enable I2C_0"
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depends on I2C
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default n
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config I2C_0_NAME
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string "Select a name for finding the device"
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depends on I2C_0
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default "I2C_0"
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config I2C_0_DEFAULT_CFG
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hex "I2C default configuration"
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depends on I2C_0
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default 0x0
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help
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Allows the I2C port to be brought up with a default configuration.
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This is useful to set if other drivers depend upon using the I2C bus
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before the application has a chance to custom configure the port.
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Setting this value does not prohibit the application from customizing
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the values later. Refer to the I2C datasheet for proper values.
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config I2C_0_IRQ_PRI
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int "Controller interrupt priority"
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depends on I2C_0 && I2C_0_IRQ_DIRECT
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help
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IRQ priority.
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config I2C_1
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bool "Enable I2C Port 1"
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depends on I2C
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default n
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config I2C_1_NAME
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string "Select a name for finding the device"
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default "I2C_1"
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depends on I2C_1
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config I2C_1_DEFAULT_CFG
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hex "I2C default configuration"
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depends on I2C_1
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default 0x0
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help
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Allows the I2C port to be brought up with a default configuration.
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This is useful to set if other drivers depend upon using the I2C bus
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before the application has a chance to custom configure the port.
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Setting this value does not prohibit the application from customizing
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the values later. Refer to the I2C datasheet for proper values.
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config I2C_1_IRQ_PRI
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int "Controller interrupt priority"
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depends on I2C_1 && I2C_0_IRQ_DIRECT
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help
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IRQ priority.
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config I2C_SS_SDA_HOLD
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int
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depends on I2C_QMSI_SS
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help
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The hold time on the data signal after a negative edge of i2c clock.
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The unit is i2c module base clock.
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config I2C_SDA_SETUP
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int
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depends on I2C_QMSI || I2C_QMSI_SS
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help
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The delay time of clock rising edge relative to i2c data signal change.
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The unit is i2c module base clock.
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config I2C_SDA_TX_HOLD
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int
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depends on I2C_QMSI
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help
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The hold time on the data signal after a negative edge of i2c clock
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while i2c acts as transmitter.
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The unit is i2c module base clock.
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config I2C_SDA_RX_HOLD
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int
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depends on I2C_QMSI
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help
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The hold time on the data signal after a negative edge of i2c clock
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while i2c acts as receiver.
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The unit is i2c module base clock.
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endif
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