1 /* 2 * Copyright (c) 2020 HiSilicon (Shanghai) Technologies CO., LIMITED. 3 * Licensed under the Apache License, Version 2.0 (the "License"); 4 * you may not use this file except in compliance with the License. 5 * You may obtain a copy of the License at 6 * 7 * http://www.apache.org/licenses/LICENSE-2.0 8 * 9 * Unless required by applicable law or agreed to in writing, software 10 * distributed under the License is distributed on an "AS IS" BASIS, 11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 * See the License for the specific language governing permissions and 13 * limitations under the License. 14 */ 15 16 #ifndef __ADC_DRV_H__ 17 #define __ADC_DRV_H__ 18 #include <hi_types.h> 19 #ifdef __cplusplus 20 #if __cplusplus 21 extern "C" { 22 #endif 23 #endif /* __cplusplus */ 24 25 26 #define LS_ADC_CLK_DIV1_REG CLDO_CTL_CLK_DIV1_REG 27 #define LS_ADC_CLK_DIV1_OFFSET 9 28 29 #define HI_LS_ADC_REG_BASE 0x40070000 /* LD ADC base address */ 30 #define REG_ADC_CFG (HI_LS_ADC_REG_BASE + 0x00) 31 #define REG_ADC_FIFO_CFG (HI_LS_ADC_REG_BASE + 0x04) 32 #define REG_ADC_IMSC (HI_LS_ADC_REG_BASE + 0x08) 33 #define REG_ADC_CR (HI_LS_ADC_REG_BASE + 0x0C) 34 #define REG_ADC_SR (HI_LS_ADC_REG_BASE + 0x10) 35 #define REG_ADC_RIS (HI_LS_ADC_REG_BASE + 0x14) 36 #define REG_ADC_MIS (HI_LS_ADC_REG_BASE + 0x18) 37 #define REG_ADC_START (HI_LS_ADC_REG_BASE + 0x1C) 38 #define REG_ADC_STOP (HI_LS_ADC_REG_BASE + 0x20) 39 #define REG_ADC_DR (HI_LS_ADC_REG_BASE + 0x24) 40 #define REG_ADC_CTRL (HI_LS_ADC_REG_BASE + 0x28) 41 #define REG_ADC_EN (HI_LS_ADC_REG_BASE + 0x2C) 42 43 #define ADC_INT_FIFO_WATER_LINE (1 << 1) 44 #define ADC_INT_FIFO_OVER_FLOW (1 << 0) 45 46 #define ADC_SR_RNE (1 << 0) /* FIFO not empty flag: 0:empty 1:not empty */ 47 #define ADC_SR_RFF (1 << 1) /* FIFO full flag 0:not full 1:full */ 48 #define ADC_SR_BSY (1 << 2) /* ADC busy flag 0:idle 1:busy */ 49 50 #define ADC_SCAN_START 1 51 #define ADC_SCAN_STOP 1 52 #define ADC_POWER_ON 0 53 #define ADC_POWER_OFF 1 54 #define ADC_ISR_DISABLE 0 55 56 /* 57 * The longest time to get 1 data is ((0xfff+(18*8)+3)*334)ns 58 * The unit of this cnt is about 5us 59 */ 60 #define ADC_PER_DATA_TIMEOUT_CNT 500 61 #define ADC_LOOP_DELAY_US 5 62 hi_u32 get_average_ref_vlt(hi_u16 *voltage); 63 #ifdef __cplusplus 64 #if __cplusplus 65 } 66 #endif 67 #endif /* __cplusplus */ 68 69 #endif 70