drivers/iio/adc/stm32-adc-core.h

   1 /*
   2  * This file is part of STM32 ADC driver
   3  *
   4  * Copyright (C) 2016, STMicroelectronics - All Rights Reserved
   5  * Author: Fabrice Gasnier <fabrice.gasnier@st.com>.
   6  *
   7  * License type: GPLv2
   8  *
   9  * This program is free software; you can redistribute it and/or modify it
  10  * under the terms of the GNU General Public License version 2 as published by
  11  * the Free Software Foundation.
  12  *
  13  * This program is distributed in the hope that it will be useful, but
  14  * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
  15  * or FITNESS FOR A PARTICULAR PURPOSE.
  16  * See the GNU General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU General Public License along with
  19  * this program. If not, see <http://www.gnu.org/licenses/>.
  20  */
  21
  22 #ifndef __STM32_ADC_H
  23 #define __STM32_ADC_H
  24
  25 /*
  26  * STM32 - ADC global register map
  27  * ________________________________________________________
  28  * | Offset |                 Register                    |
  29  * --------------------------------------------------------
  30  * | 0x000  |                Master ADC1                  |
  31  * --------------------------------------------------------
  32  * | 0x100  |                Slave ADC2                   |
  33  * --------------------------------------------------------
  34  * | 0x200  |                Slave ADC3                   |
  35  * --------------------------------------------------------
  36  * | 0x300  |         Master & Slave common regs          |
  37  * --------------------------------------------------------
  38  */
  39 #define STM32_ADC_MAX_ADCS              3
  40 #define STM32_ADCX_COMN_OFFSET          0x300
  41
  42 /**
  43  * struct stm32_adc_common - stm32 ADC driver common data (for all instances)
  44  * @base:               control registers base cpu addr
  45  * @vref_mv:            vref voltage (mv)
  46  */
  47 struct stm32_adc_common {
  48         void __iomem                    *base;
  49         int                             vref_mv;
  50 };
  51
  52 #endif