/** * @file * @ingroup stm32_i2c * @brief STM32 I2C support. */ /* * Copyright (c) 2013 Christian Mauderer. All rights reserved. * * embedded brains GmbH * Obere Lagerstr. 30 * 82178 Puchheim * Germany * * * The license and distribution terms for this file may be * found in the file LICENSE in this distribution or at * http://www.rtems.org/license/LICENSE. */ #ifndef LIBBSP_ARM_STM32F4_STM32_I2C_H #define LIBBSP_ARM_STM32F4_STM32_I2C_H #include /** * @defgroup stm32_i2c STM32 I2C Support * @ingroup stm32f4_i2c * @brief STM32 I2C Support * @{ */ typedef struct { uint32_t cr1; #define STM32F4_I2C_CR1_SWRST BSP_BIT32(15) #define STM32F4_I2C_CR1_ALERT BSP_BIT32(13) #define STM32F4_I2C_CR1_PEC BSP_BIT32(12) #define STM32F4_I2C_CR1_POS BSP_BIT32(11) #define STM32F4_I2C_CR1_ACK BSP_BIT32(10) #define STM32F4_I2C_CR1_STOP BSP_BIT32(9) #define STM32F4_I2C_CR1_START BSP_BIT32(8) #define STM32F4_I2C_CR1_NOSTRETCH BSP_BIT32(7) #define STM32F4_I2C_CR1_ENGC BSP_BIT32(6) #define STM32F4_I2C_CR1_ENPEC BSP_BIT32(5) #define STM32F4_I2C_CR1_ENARP BSP_BIT32(4) #define STM32F4_I2C_CR1_SMBTYPE BSP_BIT32(3) #define STM32F4_I2C_CR1_SMBUS BSP_BIT32(1) #define STM32F4_I2C_CR1_PE BSP_BIT32(0) uint32_t cr2; #define STM32F4_I2C_CR2_LAST BSP_BIT32(12) #define STM32F4_I2C_CR2_DMAEN BSP_BIT32(11) #define STM32F4_I2C_CR2_ITBUFEN BSP_BIT32(10) #define STM32F4_I2C_CR2_ITEVTEN BSP_BIT32(9) #define STM32F4_I2C_CR2_ITERREN BSP_BIT32(8) #define STM32F4_I2C_CR2_FREQ(val) BSP_FLD32(val, 0, 5) #define STM32F4_I2C_CR2_FREQ_GET(reg) BSP_FLD32GET(reg, 0, 5) #define STM32F4_I2C_CR2_FREQ_SET(reg, val) BSP_FLD32SET(reg, val, 0, 5) uint32_t oar1; #define STM32F4_I2C_OAR1_ADDMODE BSP_BIT32(15) #define STM32F4_I2C_OAR1_ADD(val) BSP_FLD32(val, 0, 9) #define STM32F4_I2C_OAR1_ADD_GET(reg) BSP_FLD32GET(reg, 0, 9) #define STM32F4_I2C_OAR1_ADD_SET(reg, val) BSP_FLD32SET(reg, val, 0, 9) uint32_t oar2; #define STM32F4_I2C_OAR2_ADD2(val) BSP_FLD32(val, 1, 7) #define STM32F4_I2C_OAR2_ADD2_GET(reg) BSP_FLD32GET(reg, 1, 7) #define STM32F4_I2C_OAR2_ADD2_SET(reg, val) BSP_FLD32SET(reg, val, 1, 7) #define STM32F4_I2C_OAR2_ENDUAL BSP_BIT32(0) uint32_t dr; #define STM32F4_I2C_DR(val) BSP_FLD32(val, 0, 7) #define STM32F4_I2C_DR_GET(reg) BSP_FLD32GET(reg, 0, 7) #define STM32F4_I2C_DR_SET(reg, val) BSP_FLD32SET(reg, val, 0, 7) uint32_t sr1; #define STM32F4_I2C_SR1_SMBALERT BSP_BIT32(15) #define STM32F4_I2C_SR1_TIMEOUT BSP_BIT32(14) #define STM32F4_I2C_SR1_PECERR BSP_BIT32(12) #define STM32F4_I2C_SR1_OVR BSP_BIT32(11) #define STM32F4_I2C_SR1_AF BSP_BIT32(10) #define STM32F4_I2C_SR1_ARLO BSP_BIT32(9) #define STM32F4_I2C_SR1_BERR BSP_BIT32(8) #define STM32F4_I2C_SR1_TxE BSP_BIT32(7) #define STM32F4_I2C_SR1_RxNE BSP_BIT32(6) #define STM32F4_I2C_SR1_STOPF BSP_BIT32(4) #define STM32F4_I2C_SR1_ADD10 BSP_BIT32(3) #define STM32F4_I2C_SR1_BTF BSP_BIT32(2) #define STM32F4_I2C_SR1_ADDR BSP_BIT32(1) #define STM32F4_I2C_SR1_SB BSP_BIT32(0) uint32_t sr2; #define STM32F4_I2C_SR2_PEC(val) BSP_FLD32(val, 8, 15) #define STM32F4_I2C_SR2_PEC_GET(reg) BSP_FLD32GET(reg, 8, 15) #define STM32F4_I2C_SR2_PEC_SET(reg, val) BSP_FLD32SET(reg, val, 8, 15) #define STM32F4_I2C_SR2_DUALF BSP_BIT32(7) #define STM32F4_I2C_SR2_SMBHOST BSP_BIT32(6) #define STM32F4_I2C_SR2_SMBDEFAULT BSP_BIT32(5) #define STM32F4_I2C_SR2_GENCALL BSP_BIT32(4) #define STM32F4_I2C_SR2_TRA BSP_BIT32(2) #define STM32F4_I2C_SR2_BUSY BSP_BIT32(1) #define STM32F4_I2C_SR2_MSL BSP_BIT32(0) uint32_t ccr; #define STM32F4_I2C_CCR_FS BSP_BIT32(15) #define STM32F4_I2C_CCR_DUTY BSP_BIT32(14) #define STM32F4_I2C_CCR_CCR(val) BSP_FLD32(val, 0, 11) #define STM32F4_I2C_CCR_CCR_GET(reg) BSP_FLD32GET(reg, 0, 11) #define STM32F4_I2C_CCR_CCR_SET(reg, val) BSP_FLD32SET(reg, val, 0, 11) #define STM32F4_I2C_CCR_CCR_MAX STM32F4_I2C_CCR_CCR_GET(BSP_MSK32(0, 11)) uint32_t trise; #define STM32F4_I2C_TRISE(val) BSP_FLD32(val, 0, 5) #define STM32F4_I2C_TRISE_GET(reg) BSP_FLD32GET(reg, 0, 5) #define STM32F4_I2C_TRISE_SET(reg, val) BSP_FLD32SET(reg, val, 0, 5) } stm32f4_i2c; /** @} */ #endif /* LIBBSP_ARM_STM32F4_STM32_I2C_H */