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1/* SPDX-License-Identifier: GPL-2.0-only */2/*3 * 1-Wire implementation for the ds2780 chip4 *5 * Author: Renata Sayakhova <renata@oktetlabs.ru>6 *7 * Based on w1-ds2760 driver8 */9 10#ifndef _W1_DS2781_H11#define _W1_DS2781_H12 13/* Function commands */14#define W1_DS2781_READ_DATA 0x6915#define W1_DS2781_WRITE_DATA 0x6C16#define W1_DS2781_COPY_DATA 0x4817#define W1_DS2781_RECALL_DATA 0xB818#define W1_DS2781_LOCK 0x6A19 20/* Register map */21/* Register 0x00 Reserved */22#define DS2781_STATUS 0x0123#define DS2781_RAAC_MSB 0x0224#define DS2781_RAAC_LSB 0x0325#define DS2781_RSAC_MSB 0x0426#define DS2781_RSAC_LSB 0x0527#define DS2781_RARC 0x0628#define DS2781_RSRC 0x0729#define DS2781_IAVG_MSB 0x0830#define DS2781_IAVG_LSB 0x0931#define DS2781_TEMP_MSB 0x0A32#define DS2781_TEMP_LSB 0x0B33#define DS2781_VOLT_MSB 0x0C34#define DS2781_VOLT_LSB 0x0D35#define DS2781_CURRENT_MSB 0x0E36#define DS2781_CURRENT_LSB 0x0F37#define DS2781_ACR_MSB 0x1038#define DS2781_ACR_LSB 0x1139#define DS2781_ACRL_MSB 0x1240#define DS2781_ACRL_LSB 0x1341#define DS2781_AS 0x1442#define DS2781_SFR 0x1543#define DS2781_FULL_MSB 0x1644#define DS2781_FULL_LSB 0x1745#define DS2781_AE_MSB 0x1846#define DS2781_AE_LSB 0x1947#define DS2781_SE_MSB 0x1A48#define DS2781_SE_LSB 0x1B49/* Register 0x1C - 0x1E Reserved */50#define DS2781_EEPROM 0x1F51#define DS2781_EEPROM_BLOCK0_START 0x2052/* Register 0x20 - 0x2F User EEPROM */53#define DS2781_EEPROM_BLOCK0_END 0x2F54/* Register 0x30 - 0x5F Reserved */55#define DS2781_EEPROM_BLOCK1_START 0x6056#define DS2781_CONTROL 0x6057#define DS2781_AB 0x6158#define DS2781_AC_MSB 0x6259#define DS2781_AC_LSB 0x6360#define DS2781_VCHG 0x6461#define DS2781_IMIN 0x6562#define DS2781_VAE 0x6663#define DS2781_IAE 0x6764#define DS2781_AE_40 0x6865#define DS2781_RSNSP 0x6966#define DS2781_FULL_40_MSB 0x6A67#define DS2781_FULL_40_LSB 0x6B68#define DS2781_FULL_4_SLOPE 0x6C69#define DS2781_FULL_3_SLOPE 0x6D70#define DS2781_FULL_2_SLOPE 0x6E71#define DS2781_FULL_1_SLOPE 0x6F72#define DS2781_AE_4_SLOPE 0x7073#define DS2781_AE_3_SLOPE 0x7174#define DS2781_AE_2_SLOPE 0x7275#define DS2781_AE_1_SLOPE 0x7376#define DS2781_SE_4_SLOPE 0x7477#define DS2781_SE_3_SLOPE 0x7578#define DS2781_SE_2_SLOPE 0x7679#define DS2781_SE_1_SLOPE 0x7780#define DS2781_RSGAIN_MSB 0x7881#define DS2781_RSGAIN_LSB 0x7982#define DS2781_RSTC 0x7A83#define DS2781_COB 0x7B84#define DS2781_TBP34 0x7C85#define DS2781_TBP23 0x7D86#define DS2781_TBP12 0x7E87#define DS2781_EEPROM_BLOCK1_END 0x7F88/* Register 0x7D - 0xFF Reserved */89 90#define DS2781_FSGAIN_MSB 0xB091#define DS2781_FSGAIN_LSB 0xB192 93/* Number of valid register addresses */94#define DS2781_DATA_SIZE 0xB295 96/* Status register bits */97#define DS2781_STATUS_CHGTF (1 << 7)98#define DS2781_STATUS_AEF (1 << 6)99#define DS2781_STATUS_SEF (1 << 5)100#define DS2781_STATUS_LEARNF (1 << 4)101/* Bit 3 Reserved */102#define DS2781_STATUS_UVF (1 << 2)103#define DS2781_STATUS_PORF (1 << 1)104/* Bit 0 Reserved */105 106/* Control register bits */107/* Bit 7 Reserved */108#define DS2781_CONTROL_NBEN (1 << 7)109#define DS2781_CONTROL_UVEN (1 << 6)110#define DS2781_CONTROL_PMOD (1 << 5)111#define DS2781_CONTROL_RNAOP (1 << 4)112#define DS1781_CONTROL_UVTH (1 << 3)113/* Bit 0 - 2 Reserved */114 115/* Special feature register bits */116/* Bit 1 - 7 Reserved */117#define DS2781_SFR_PIOSC (1 << 0)118 119/* EEPROM register bits */120#define DS2781_EEPROM_EEC (1 << 7)121#define DS2781_EEPROM_LOCK (1 << 6)122/* Bit 2 - 6 Reserved */123#define DS2781_EEPROM_BL1 (1 << 1)124#define DS2781_EEPROM_BL0 (1 << 0)125 126extern int w1_ds2781_io(struct device *dev, char *buf, int addr, size_t count,127 int io);128extern int w1_ds2781_eeprom_cmd(struct device *dev, int addr, int cmd);129 130#endif /* !_W1_DS2781_H */131