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

/*
 * This file is part of STM32 ADC driver
 *
 * Copyright (C) 2016, STMicroelectronics - All Rights Reserved
 * Author: Fabrice Gasnier <fabrice.gasnier@st.com>.
 *
 * License type: GPLv2
 *
 * This program is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 as published by
 * the Free Software Foundation.
 *
 * This program 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 General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License along with
 * this program. If not, see <http://www.gnu.org/licenses/>.
 */

#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_ADCX_COMN_OFFSET		0x300

/**
 * 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