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/** @defgroup i2c_defines I2C Defines
*
* @brief <b>Defined Constants and Types for the STM32F0xx I2C</b>
*
* @ingroup STM32F0xx_defines
*
* @version 1.0.0
*
* @date 11 July 2013
*
* LGPL License Terms @ref lgpl_license
*/
/*
* This file is part of the libopencm3 project.
*
* Copyright (C) 2010 Thomas Otto <tommi@viadmin.org>
*
* This library is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this library. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef LIBOPENCM3_I2C_H
#define LIBOPENCM3_I2C_H
/*****************************************************************************/
/* Module definitions */
/*****************************************************************************/
#define I2C1 I2C1_BASE
#define I2C2 I2C2_BASE
/*****************************************************************************/
/* Register definitions */
/*****************************************************************************/
#define I2C_CR1(i2c_base) MMIO32(i2c_base + 0x00)
#define I2C1_CR1 I2C_CR1(I2C1)
#define I2C2_CR1 I2C_CR1(I2C2)
#define I2C_CR2(i2c_base) MMIO32(i2c_base + 0x04)
#define I2C1_CR2 I2C_CR2(I2C1)
#define I2C2_CR2 I2C_CR2(I2C2)
#define I2C_OAR1(i2c_base) MMIO32(i2c_base + 0x08)
#define I2C1_OAR1 I2C_OAR1(I2C1)
#define I2C2_OAR1 I2C_OAR1(I2C2)
#define I2C_OAR2(i2c_base) MMIO32(i2c_base + 0x0c)
#define I2C1_OAR2 I2C_OAR2(I2C1)
#define I2C2_OAR2 I2C_OAR2(I2C2)
#define I2C_TIMINGR(i2c_base) MMIO32(i2c_base + 0x10)
#define I2C1_TIMINGR I2C_TIMINGR(I2C1)
#define I2C2_TIMINGR I2C_TIMINGR(I2C2)
#define I2C_TIMEOUTR(i2c_base) MMIO32(i2c_base + 0x14)
#define I2C1_TIMEOUTR I2C_TIMEOUTR(I2C1)
#define I2C2_TIMEOUTR I2C_TIMEOUTR(I2C2)
#define I2C_ISR(i2c_base) MMIO32(i2c_base + 0x18)
#define I2C1_ISR I2C_ISR(I2C1)
#define I2C2_ISR I2C_ISR(I2C2)
#define I2C_ICR(i2c_base) MMIO32(i2c_base + 0x1C)
#define I2C1_ICR I2C_ICR(I2C1)
#define I2C2_ICR I2C_ICR(I2C2)
#define I2C_PECR(i2c_base) MMIO8(i2c_base + 0x20)
#define I2C1_PECR I2C_PECR(I2C1)
#define I2C2_PECR I2C_PECR(I2C2)
#define I2C_RXDR(i2c_base) MMIO8(i2c_base + 0x24)
#define I2C1_RXDR I2C_RXDR(I2C1)
#define I2C2_RXDR I2C_RXDR(I2C2)
#define I2C_TXDR(i2c_base) MMIO8(i2c_base + 0x28)
#define I2C1_TXDR I2C_TXDR(I2C1)
#define I2C2_TXDR I2C_TXDR(I2C2)
/*****************************************************************************/
/* Register values */
/*****************************************************************************/
/* I2C_CR1 values ---------------------------------------------------------- */
#define I2C_CR1_PECEN (1 << 23)
#define I2C_CR1_ALERTEN (1 << 22)
#define I2C_CR1_SMBDEN (1 << 21)
#define I2C_CR1_SMBHEN (1 << 20)
#define I2C_CR1_GCEN (1 << 19)
#define I2C_CR1_WUPEN (1 << 18)
#define I2C_CR1_NOSTRETCH (1 << 17)
#define I2C_CR1_SBC (1 << 16)
#define I2C_CR1_RXDMAEN (1 << 15)
#define I2C_CR1_TXDMAEN (1 << 14)
#define I2C_CR1_ANFOFF (1 << 12)
#define I2C_CR1_DNF_SHIFT 8
#define I2C_CR1_DNF (0x0F << I2C_CR1_DNF_SHIFT)
#define I2C_CR1_DNF_VAL(x) ((x) << I2C_CR1_DNF_SHIFT)
#define I2C_CR1_ERRIE (1 << 7)
#define I2C_CR1_TCIE (1 << 6)
#define I2C_CR1_STOPIE (1 << 5)
#define I2C_CR1_NACKIE (1 << 4)
#define I2C_CR1_ADDRIE (1 << 3)
#define I2C_CR1_RXIE (1 << 2)
#define I2C_CR1_TXIE (1 << 1)
#define I2C_CR1_PE (1 << 0)
/* I2C_CR2 values ---------------------------------------------------------- */
#define I2C_CR2_PECBYTE (1 << 26)
#define I2C_CR2_AUTOEND (1 << 25)
#define I2C_CR2_RELOAD (1 << 24)
#define I2C_CR2_NBYTES_SHIFT 16
#define I2C_CR2_NBYTES (0xFF << I2C_CR2_NBYTES_SHIFT)
#define I2C_CR2_NBYTES_VAL(x) ((x) << I2C_CR2_NBYTES_SHIFT)
#define I2C_CR2_NACK (1 << 15)
#define I2C_CR2_STOP (1 << 14)
#define I2C_CR2_START (1 << 13)
#define I2C_CR2_HEAD10R (1 << 12)
#define I2C_CR2_ADD10 (1 << 11)
#define I2C_CR2_RD_WRN (1 << 10)
#define I2C_CR2_SADD_SHIFT 0
#define I2C_CR2_SADD (0x3FF << I2C_CR2_SADD_SHIFT)
#define I2C_CR2_SADD_VAL(x) ((x) << I2C_CR2_SADD_SHIFT)
/* I2C_OAR1 values --------------------------------------------------------- */
#define I2C_OAR1_OA1EN (1 << 15)
#define I2C_OAR1_OA1MODE (1 << 10)
#define I2C_OAR1_OA1_SHIFT 0
#define I2C_OAR1_OA1 (0x3FF << I2C_OAR1_OA1_SHIFT)
#define I2C_OAR1_OA1_VAL(x) ((x) << I2C_OAR1_OA1_SHIFT)
/* I2C_OAR2 values --------------------------------------------------------- */
#define I2C_OAR2_OA1EN (1 << 15)
#define I2C_OAR2_OA2MSK_SHIFT 8
#define I2C_OAR2_OA2MSK (7 << I2C_OAR2_OA2MSK_SHIFT)
#define I2C_OAR2_OA2MSK_NOMASK (0 << I2C_OAR2_OA2MSK_SHIFT)
#define I2C_OAR2_OA2MSK_1_BIT (1 << I2C_OAR2_OA2MSK_SHIFT)
#define I2C_OAR2_OA2MSK_2_BIT (2 << I2C_OAR2_OA2MSK_SHIFT)
#define I2C_OAR2_OA2MSK_3_BIT (3 << I2C_OAR2_OA2MSK_SHIFT)
#define I2C_OAR2_OA2MSK_4_BIT (4 << I2C_OAR2_OA2MSK_SHIFT)
#define I2C_OAR2_OA2MSK_5_BIT (5 << I2C_OAR2_OA2MSK_SHIFT)
#define I2C_OAR2_OA2MSK_6_BIT (6 << I2C_OAR2_OA2MSK_SHIFT)
#define I2C_OAR2_OA2MSK_ALL (7 << I2C_OAR2_OA2MSK_SHIFT)
#define I2C_OAR2_OA2_SHIFT 1
#define I2C_OAR2_OA2 (0x7F << I2C_OAR2_OA2_SHIFT)
#define I2C_OAR2_OA2_VAL(x) ((x) << I2C_OAR2_OA2_SHIFT)
/* I2C_TIMINGR values ------------------------------------------------------ */
#define I2C_TIMINGR_PRESC_SHIFT 28
#define I2C_TIMINGR_PRESC (0x0F << I2C_TIMINGR_PRESC_SHIFT)
#define I2C_TIMINGR_PRESC_VAL(x) ((x) << I2C_TIMINGR_PRESC_SHIFT)
#define I2C_TIMINGR_SCLDEL_SHIFT 20
#define I2C_TIMINGR_SCLDEL (0x0F << I2C_TIMINGR_SCLDEL_SHIFT)
#define I2C_TIMINGR_SCLDEL_VAL(x) ((x) << I2C_TIMINGR_SCLDEL_SHIFT)
#define I2C_TIMINGR_SDADEL_SHIFT 16
#define I2C_TIMINGR_SDADEL (0x0F << I2C_TIMINGR_SDADEL_SHIFT)
#define I2C_TIMINGR_SDADEL_VAL(x) ((x) << I2C_TIMINGR_SDADEL_SHIFT)
#define I2C_TIMINGR_SCLH_SHIFT 8
#define I2C_TIMINGR_SCLH (0xFF << I2C_TIMINGR_SCLH_SHIFT)
#define I2C_TIMINGR_SCLH_VAL(x) ((x) << I2C_TIMINGR_SCLH_SHIFT)
#define I2C_TIMINGR_SCLL_SHIFT 0
#define I2C_TIMINGR_SCLL (0xFF << I2C_TIMINGR_SCLL_SHIFT)
#define I2C_TIMINGR_SCLL_VAL(x) ((x) << I2C_TIMINGR_SCLL_SHIFT)
/* I2C_TIMEOUTR values ----------------------------------------------------- */
#define I2C_TIMEOUTR_TETXEN (1 << 31)
#define I2C_TIMEOUTR_TIMEOUTB_SHIFT 16
#define I2C_TIMEOUTR_TIMEOUTB (0xFFF << I2C_TIMEOUTR_TIMEOUTB_SHIFT)
#define I2C_TIMEOUTR_TIMEOUTB_VAL(x) ((x) << I2C_TIMEOUTR_TIMEOUTB_SHIFT)
#define I2C_TIMEOUTR_TIMOUTEN (1 << 15)
#define I2C_TIMEOUTR_TIDLE (1 << 12)
#define I2C_TIMEOUTR_TIMEOUTA_SHIFT 0
#define I2C_TIMEOUTR_TIMEOUTA (0xFFF << I2C_TIMEOUTR_TIMEOUTA_SHIFT)
#define I2C_TIMEOUTR_TIMEOUTA_VAL(x) ((x) << I2C_TIMEOUTR_TIMEOUTA_SHIFT)
/* I2C_ISR values ---------------------------------------------------------- */
#define I2C_ISR_ADDCODE_SHIFT 17
#define I2C_ISR_ADDCODE (0x7F << I2C_ISR_ADDCODE_SHIFT)
#define I2C_ISR_ADDCODE_VAL(x) ((x) << I2C_ISR_ADDCODE_SHIFT)
#define I2C_ISR_ADDCODE_VALG(reg) (((reg) & I2C_ISR_ADDCODE) >> \
I2C_ISR_ADDCODE_SHIFT)
#define I2C_ISR_DIR (1 << 16)
#define I2C_ISR_BUSY (1 << 15)
#define I2C_ISR_ALERT (1 << 13)
#define I2C_ISR_TIMEOUT (1 << 12)
#define I2C_ISR_PECERR (1 << 11)
#define I2C_ISR_OVR (1 << 10)
#define I2C_ISR_ARLO (1 << 9)
#define I2C_ISR_BERR (1 << 8)
#define I2C_ISR_TCR (1 << 7)
#define I2C_ISR_TC (1 << 6)
#define I2C_ISR_STOPF (1 << 5)
#define I2C_ISR_NACKF (1 << 4)
#define I2C_ISR_ADDR (1 << 3)
#define I2C_ISR_RXNE (1 << 2)
#define I2C_ISR_TXIS (1 << 1)
#define I2C_ISR_TXE (1 << 0)
/* I2C_ICR values ---------------------------------------------------------- */
#define I2C_ICR_ALERTCF (1 << 13)
#define I2C_ICR_TIMEOUTCF (1 << 12)
#define I2C_ICR_PECCF (1 << 11)
#define I2C_ICR_OVRCF (1 << 10)
#define I2C_ICR_ARLOCF (1 << 9)
#define I2C_ICR_BERRCF (1 << 8)
#define I2C_ICR_STOPCF (1 << 5)
#define I2C_ICR_NACKCF (1 << 4)
#define I2C_ICR_ADDRCF (1 << 3)
/*****************************************************************************/
/* API definitions */
/*****************************************************************************/
/*****************************************************************************/
/* API Functions */
/*****************************************************************************/
BEGIN_DECLS
END_DECLS
#endif
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