| # Kconfig - I2C configuration options |
| |
| # |
| # Copyright (c) 2015 Intel Corporation |
| # |
| # Licensed under the Apache License, Version 2.0 (the "License"); |
| # you may not use this file except in compliance with the License. |
| # You may obtain a copy of the License at |
| # |
| # http://www.apache.org/licenses/LICENSE-2.0 |
| # |
| # Unless required by applicable law or agreed to in writing, software |
| # distributed under the License is distributed on an "AS IS" BASIS, |
| # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| # See the License for the specific language governing permissions and |
| # limitations under the License. |
| # |
| |
| # |
| # I2C options |
| # |
| menuconfig I2C |
| bool |
| prompt "I2C Drivers" |
| default n |
| help |
| Enable I2C Driver Configuration |
| |
| if I2C |
| |
| config I2C_DW |
| bool "Design Ware I2C support" |
| depends on I2C |
| default n |
| help |
| Enable Design Ware I2C support on the selected board |
| |
| config I2C_QMSI_SS |
| bool "QMSI I2C driver for the Sensor Subsystem" |
| depends on I2C && QMSI |
| default n |
| help |
| This option enable the Sensor QMSI I2C driver. |
| |
| This driver is simply a shim driver based on the I2C driver |
| provided by the QMSI BSP. |
| |
| config I2C_QMSI |
| bool "QMSI I2C driver" |
| depends on I2C && QMSI |
| default n |
| help |
| This option enable the QMSI I2C driver. |
| |
| This driver is simply a shim driver based on the I2C driver |
| provided by the QMSI BSP. |
| |
| config I2C_ATMEL_SAM3 |
| bool "Atmel SAM3 I2C Driver" |
| depends on I2C && SOC_ATMEL_SAM3 |
| default n |
| help |
| Enable I2C support on the Atmel SAM3 family processor. |
| |
| Says y to enable additional options to enable support |
| for individual controllers. |
| |
| config I2C_KSDK |
| bool "KSDK I2C driver" |
| depends on I2C && HAS_KSDK |
| default n |
| help |
| Enable the ksdk I2C driver. |
| |
| config I2C_INIT_PRIORITY |
| int |
| depends on I2C |
| default 60 |
| prompt "Init priority" |
| help |
| I2C device driver initialization priority. |
| |
| config I2C_CLOCK_SPEED |
| int "Set the clock speed for I2C" |
| default 32 |
| depends on I2C |
| |
| config SYS_LOG_I2C_LEVEL |
| int |
| prompt "I2C log level" |
| depends on I2C && SYS_LOG |
| default 0 |
| help |
| Sets log level for I2C connections |
| |
| Levels are: |
| |
| - 0 OFF, do not write |
| |
| - 1 ERROR, only write SYS_LOG_ERR |
| |
| - 2 WARNING, write SYS_LOG_WRN in adition to previous level |
| |
| - 3 INFO, write SYS_LOG_INF in adition to previous levels |
| |
| - 4 DEBUG, write SYS_LOG_DBG in adition to previous levels |
| |
| config I2C_SHARED_IRQ |
| bool |
| default n |
| depends on I2C |
| |
| choice |
| prompt "I2C_0 Interrupts via" |
| default I2C_0_IRQ_DIRECT |
| depends on I2C_0 |
| |
| config I2C_0_IRQ_DIRECT |
| bool "Direct Hardware Interrupt" |
| help |
| When interrupts fire, the driver's ISR function is being called directly. |
| |
| config I2C_0_IRQ_SHARED |
| bool "Shared IRQ" |
| depends on SHARED_IRQ |
| select I2C_SHARED_IRQ |
| help |
| When interrupts fire, the shared IRQ driver is notified. Then the shared IRQ |
| driver dispatches the interrupt to other drivers. |
| |
| endchoice |
| |
| config I2C_0_IRQ_SHARED_NAME |
| string "Device name for Shared IRQ" |
| depends on I2C_0 && I2C_0_IRQ_SHARED |
| help |
| Specify the device name for the shared IRQ driver. It is used to register |
| this driver with the shared IRQ driver, so interrupts can be dispatched |
| correctly. |
| |
| config I2C_0 |
| bool "Enable I2C_0" |
| depends on I2C |
| default n |
| |
| config I2C_0_NAME |
| string "Select a name for finding the device" |
| depends on I2C_0 |
| default "I2C_0" |
| |
| config I2C_0_DEFAULT_CFG |
| hex "I2C default configuration" |
| depends on I2C_0 |
| default 0x0 |
| help |
| Allows the I2C port to be brought up with a default configuration. |
| This is useful to set if other drivers depend upon using the I2C bus |
| before the application has a chance to custom configure the port. |
| Setting this value does not prohibit the application from customizing |
| the values later. Refer to the I2C datasheet for proper values. |
| |
| config I2C_0_IRQ_PRI |
| int "Controller interrupt priority" |
| depends on I2C_0 && I2C_0_IRQ_DIRECT |
| help |
| IRQ priority. |
| |
| config I2C_1 |
| bool "Enable I2C Port 1" |
| depends on I2C |
| default n |
| |
| config I2C_1_NAME |
| string "Select a name for finding the device" |
| default "I2C_1" |
| depends on I2C_1 |
| |
| config I2C_1_DEFAULT_CFG |
| hex "I2C default configuration" |
| depends on I2C_1 |
| default 0x0 |
| help |
| Allows the I2C port to be brought up with a default configuration. |
| This is useful to set if other drivers depend upon using the I2C bus |
| before the application has a chance to custom configure the port. |
| Setting this value does not prohibit the application from customizing |
| the values later. Refer to the I2C datasheet for proper values. |
| |
| config I2C_1_IRQ_PRI |
| int "Controller interrupt priority" |
| depends on I2C_1 && I2C_0_IRQ_DIRECT |
| help |
| IRQ priority. |
| |
| config I2C_SS_SDA_HOLD |
| int |
| depends on I2C_QMSI_SS |
| help |
| The hold time on the data signal after a negative edge of i2c clock. |
| The unit is i2c module base clock. |
| |
| config I2C_SDA_SETUP |
| int |
| depends on I2C_QMSI || I2C_QMSI_SS |
| help |
| The delay time of clock rising edge relative to i2c data signal change. |
| The unit is i2c module base clock. |
| |
| config I2C_SDA_TX_HOLD |
| int |
| depends on I2C_QMSI |
| help |
| The hold time on the data signal after a negative edge of i2c clock |
| while i2c acts as transmitter. |
| The unit is i2c module base clock. |
| |
| config I2C_SDA_RX_HOLD |
| int |
| depends on I2C_QMSI |
| help |
| The hold time on the data signal after a negative edge of i2c clock |
| while i2c acts as receiver. |
| The unit is i2c module base clock. |
| |
| endif |
