/* SPDX-License-Identifier: GPL-2.0 */ /* * This file is part of STM32 ADC driver * * Copyright (C) 2016, STMicroelectronics - All Rights Reserved * Author: Fabrice Gasnier . * */ #ifndef __STM32_ADC_H #define __STM32_ADC_H /* * STM32 - ADC global register map * ________________________________________________________ * | Offset | Register | * -------------------------------------------------------- * | 0x000 | Master ADC1 | * -------------------------------------------------------- * | 0x100 | Slave ADC2 | * -------------------------------------------------------- * | 0x200 | Slave ADC3 | * -------------------------------------------------------- * | 0x300 | Master & Slave common regs | * -------------------------------------------------------- */ #define STM32_ADC_MAX_ADCS 3 #define STM32_ADC_OFFSET 0x100 #define STM32_ADCX_COMN_OFFSET 0x300 /* STM32F4 - Registers for each ADC instance */ #define STM32F4_ADC_SR 0x00 #define STM32F4_ADC_CR1 0x04 #define STM32F4_ADC_CR2 0x08 #define STM32F4_ADC_SMPR1 0x0C #define STM32F4_ADC_SMPR2 0x10 #define STM32F4_ADC_HTR 0x24 #define STM32F4_ADC_LTR 0x28 #define STM32F4_ADC_SQR1 0x2C #define STM32F4_ADC_SQR2 0x30 #define STM32F4_ADC_SQR3 0x34 #define STM32F4_ADC_JSQR 0x38 #define STM32F4_ADC_JDR1 0x3C #define STM32F4_ADC_JDR2 0x40 #define STM32F4_ADC_JDR3 0x44 #define STM32F4_ADC_JDR4 0x48 #define STM32F4_ADC_DR 0x4C /* STM32F4 - common registers for all ADC instances: 1, 2 & 3 */ #define STM32F4_ADC_CSR (STM32_ADCX_COMN_OFFSET + 0x00) #define STM32F4_ADC_CCR (STM32_ADCX_COMN_OFFSET + 0x04) /* STM32F4_ADC_SR - bit fields */ #define STM32F4_STRT BIT(4) #define STM32F4_EOC BIT(1) /* STM32F4_ADC_CR1 - bit fields */ #define STM32F4_RES_SHIFT 24 #define STM32F4_RES_MASK GENMASK(25, 24) #define STM32F4_SCAN BIT(8) #define STM32F4_EOCIE BIT(5) /* STM32F4_ADC_CR2 - bit fields */ #define STM32F4_SWSTART BIT(30) #define STM32F4_EXTEN_SHIFT 28 #define STM32F4_EXTEN_MASK GENMASK(29, 28) #define STM32F4_EXTSEL_SHIFT 24 #define STM32F4_EXTSEL_MASK GENMASK(27, 24) #define STM32F4_EOCS BIT(10) #define STM32F4_DDS BIT(9) #define STM32F4_DMA BIT(8) #define STM32F4_ADON BIT(0) /* STM32F4_ADC_CSR - bit fields */ #define STM32F4_EOC3 BIT(17) #define STM32F4_EOC2 BIT(9) #define STM32F4_EOC1 BIT(1) /* STM32F4_ADC_CCR - bit fields */ #define STM32F4_ADC_ADCPRE_SHIFT 16 #define STM32F4_ADC_ADCPRE_MASK GENMASK(17, 16) /* STM32H7 - Registers for each ADC instance */ #define STM32H7_ADC_ISR 0x00 #define STM32H7_ADC_IER 0x04 #define STM32H7_ADC_CR 0x08 #define STM32H7_ADC_CFGR 0x0C #define STM32H7_ADC_SMPR1 0x14 #define STM32H7_ADC_SMPR2 0x18 #define STM32H7_ADC_PCSEL 0x1C #define STM32H7_ADC_SQR1 0x30 #define STM32H7_ADC_SQR2 0x34 #define STM32H7_ADC_SQR3 0x38 #define STM32H7_ADC_SQR4 0x3C #define STM32H7_ADC_DR 0x40 #define STM32H7_ADC_DIFSEL 0xC0 #define STM32H7_ADC_CALFACT 0xC4 #define STM32H7_ADC_CALFACT2 0xC8 /* STM32H7 - common registers for all ADC instances */ #define STM32H7_ADC_CSR (STM32_ADCX_COMN_OFFSET + 0x00) #define STM32H7_ADC_CCR (STM32_ADCX_COMN_OFFSET + 0x08) /* STM32H7_ADC_ISR - bit fields */ #define STM32MP1_VREGREADY BIT(12) #define STM32H7_EOC BIT(2) #define STM32H7_ADRDY BIT(0) /* STM32H7_ADC_IER - bit fields */ #define STM32H7_EOCIE STM32H7_EOC /* STM32H7_ADC_CR - bit fields */ #define STM32H7_ADCAL BIT(31) #define STM32H7_ADCALDIF BIT(30) #define STM32H7_DEEPPWD BIT(29) #define STM32H7_ADVREGEN BIT(28) #define STM32H7_LINCALRDYW6 BIT(27) #define STM32H7_LINCALRDYW5 BIT(26) #define STM32H7_LINCALRDYW4 BIT(25) #define STM32H7_LINCALRDYW3 BIT(24) #define STM32H7_LINCALRDYW2 BIT(23) #define STM32H7_LINCALRDYW1 BIT(22) #define STM32H7_ADCALLIN BIT(16) #define STM32H7_BOOST BIT(8) #define STM32H7_ADSTP BIT(4) #define STM32H7_ADSTART BIT(2) #define STM32H7_ADDIS BIT(1) #define STM32H7_ADEN BIT(0) /* STM32H7_ADC_CFGR bit fields */ #define STM32H7_EXTEN_SHIFT 10 #define STM32H7_EXTEN_MASK GENMASK(11, 10) #define STM32H7_EXTSEL_SHIFT 5 #define STM32H7_EXTSEL_MASK GENMASK(9, 5) #define STM32H7_RES_SHIFT 2 #define STM32H7_RES_MASK GENMASK(4, 2) #define STM32H7_DMNGT_SHIFT 0 #define STM32H7_DMNGT_MASK GENMASK(1, 0) enum stm32h7_adc_dmngt { STM32H7_DMNGT_DR_ONLY, /* Regular data in DR only */ STM32H7_DMNGT_DMA_ONESHOT, /* DMA one shot mode */ STM32H7_DMNGT_DFSDM, /* DFSDM mode */ STM32H7_DMNGT_DMA_CIRC, /* DMA circular mode */ }; /* STM32H7_ADC_CALFACT - bit fields */ #define STM32H7_CALFACT_D_SHIFT 16 #define STM32H7_CALFACT_D_MASK GENMASK(26, 16) #define STM32H7_CALFACT_S_SHIFT 0 #define STM32H7_CALFACT_S_MASK GENMASK(10, 0) /* STM32H7_ADC_CALFACT2 - bit fields */ #define STM32H7_LINCALFACT_SHIFT 0 #define STM32H7_LINCALFACT_MASK GENMASK(29, 0) /* STM32H7_ADC_CSR - bit fields */ #define STM32H7_EOC_SLV BIT(18) #define STM32H7_EOC_MST BIT(2) /* STM32H7_ADC_CCR - bit fields */ #define STM32H7_PRESC_SHIFT 18 #define STM32H7_PRESC_MASK GENMASK(21, 18) #define STM32H7_CKMODE_SHIFT 16 #define STM32H7_CKMODE_MASK GENMASK(17, 16) /** * struct stm32_adc_common - stm32 ADC driver common data (for all instances) * @base: control registers base cpu addr * @phys_base: control registers base physical addr * @rate: clock rate used for analog circuitry * @vref_mv: vref voltage (mv) */ struct stm32_adc_common { void __iomem *base; phys_addr_t phys_base; unsigned long rate; int vref_mv; }; #endif