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drivers
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adc
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stm32-adc-core.h

stm32-adc-core.h 1.9 KB
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  1. /*
    2. 

  2.  * This file is part of STM32 ADC driver
    3. 

  3.  *
    4. 

  4.  * Copyright (C) 2016, STMicroelectronics - All Rights Reserved
    5. 

  5.  * Author: Fabrice Gasnier <fabrice.gasnier@st.com>.
    6. 

  6.  *
    7. 

  7.  * License type: GPLv2
    8. 

  8.  *
    9. 

  9.  * This program is free software; you can redistribute it and/or modify it
    10. 

  10.  * under the terms of the GNU General Public License version 2 as published by
    11. 

  11.  * the Free Software Foundation.
    12. 

  12.  *
    13. 

  13.  * This program is distributed in the hope that it will be useful, but
    14. 

  14.  * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
    15. 

  15.  * or FITNESS FOR A PARTICULAR PURPOSE.
    16. 

  16.  * See the GNU General Public License for more details.
    17. 

  17.  *
    18. 

  18.  * You should have received a copy of the GNU General Public License along with
    19. 

  19.  * this program. If not, see <http://www.gnu.org/licenses/>.
    20. 

  20.  */
    21. 

  21. 

  22. #ifndef __STM32_ADC_H
    23. 

  23. #define __STM32_ADC_H
    24. 

  24. 

  25. /*
    26. 

  26.  * STM32 - ADC global register map
    27. 

  27.  * ________________________________________________________
    28. 

  28.  * | Offset |                 Register                    |
    29. 

  29.  * --------------------------------------------------------
    30. 

  30.  * | 0x000  |                Master ADC1                  |
    31. 

  31.  * --------------------------------------------------------
    32. 

  32.  * | 0x100  |                Slave ADC2                   |
    33. 

  33.  * --------------------------------------------------------
    34. 

  34.  * | 0x200  |                Slave ADC3                   |
    35. 

  35.  * --------------------------------------------------------
    36. 

  36.  * | 0x300  |         Master & Slave common regs          |
    37. 

  37.  * --------------------------------------------------------
    38. 

  38.  */
    39. 

  39. #define STM32_ADC_MAX_ADCS		3
    40. 

  40. #define STM32_ADCX_COMN_OFFSET		0x300
    41. 

  41. 

  42. /**
    43. 

  43.  * struct stm32_adc_common - stm32 ADC driver common data (for all instances)
    44. 

  44.  * @base:		control registers base cpu addr
    45. 

  45.  * @phys_base:		control registers base physical addr
    46. 

  46.  * @rate:		clock rate used for analog circuitry
    47. 

  47.  * @vref_mv:		vref voltage (mv)
    48. 

  48.  */
    49. 

  49. struct stm32_adc_common {
    50. 

  50. 	void __iomem			*base;
    51. 

  51. 	phys_addr_t			phys_base;
    52. 

  52. 	unsigned long			rate;
    53. 

  53. 	int				vref_mv;
    54. 

  54. };
    55. 

  55. 

  56. #endif
    57.