/* SPDX-License-Identifier: GPL-2.0-only */ #ifndef DRIVERS_I2C_NCT7802Y_H #define DRIVERS_I2C_NCT7802Y_H #include <types.h> #include <console/console.h> #include <device/device.h> #include <device/i2c_bus.h> #define BANK_SELECT 0x00 /* Bank 0 */ #define MODE_SELECTION 0x22 #define MODE_SELECTION_LTD_EN (1 << 6) #define MODE_SELECTION_RTDx(x, val) ((val) << (x) * 2) #define PECI_ENABLE 0x23 #define PECI_ENABLE_AGENTx(x) (1 << (x)) #define FAN_ENABLE 0x24 #define FANx_ENABLE(fan) (1 << (fan)) #define FAN_CTRL(fan) (0x60 + (fan)) #define CLOSE_LOOP_FAN_RPM_CTRL 0x63 #define CLOSE_LOOP_FANx_EN(fan) (1 << ((fan) + 5)) #define CLOSE_LOOP_FANx_HIGH_RPM(fan) (1 << ((fan) + 2)) #define CLOSE_LOOP_FAN_PECI_ERR_MASK (3 << 0) #define CLOSE_LOOP_FAN_PECI_ERR_CURR (0 << 0) #define CLOSE_LOOP_FAN_PECI_ERR_VALUE (1 << 0) #define CLOSE_LOOP_FAN_PECI_ERR_MAX (2 << 0) #define TEMP_SHIFT(temp) (((temp) % 2) * 4) #define TEMP_TO_FAN_MAP(temp) (0x64 + (temp) / 2) #define TEMPx_TO_FAN_MAP_MASK(temp) (7 << TEMP_SHIFT(temp)) #define TEMPx_TO_FANy_MAP(temp, fan) (1 << (TEMP_SHIFT(temp) + (fan))) #define FAN_CTRL_TEMP_SRC(temp) (0x68 + (temp) / 2) #define FAN_CTRL_TEMPx_SRC_MASK(temp) (7 << TEMP_SHIFT(temp)) #define FAN_CTRL_TEMPx_SRCy(temp, src) ((src) << TEMP_SHIFT(temp)) #define FAN_DUTY_ON_PECI_ERROR 0x7a #define TABLEx_TEMP_POINTy(fan, pt) (0x80 + (0x10 * (fan)) + (pt)) #define TABLEx_TARGET_POINTy(fan, pt) (0x85 + (0x10 * (fan)) + (pt)) /* Bank 1 */ #define PECI_CTRL_1 0x01 #define PECI_CTRL_1_EN (1 << 7) #define PECI_CTRL_1_MANUAL_EN (1 << 1) #define PECI_CTRL_1_ROUTINE_EN (1 << 0) #define PECI_CTRL_3 0x03 #define PECI_CTRL_3_EN_AGENTx(x) (1 << ((x) + 4)) #define PECI_CTRL_3_HAS_DOM1_AGENTx(x) (1 << (x)) #define PECI_REPORT_TEMP_STYLE 0x04 #define PECI_TEMP_STYLE_DOM0_AGENTx(x) (0 << ((x) + 1)) #define PECI_TEMP_STYLE_DOM1_AGENTx(x) (1 << ((x) + 1)) #define PECI_TEMP_STYLE_SINGLE (0 << 0) #define PECI_TEMP_STYLE_HIGHEST (1 << 0) #define PECI_BASE_TEMP_AGENT(x) (0x09 + (x)) #define PECI_BASE_TEMP_MAX (0x7f << 0) static inline int nct7802y_select_bank(struct device *const dev, const u8 bank) { const int ret = i2c_dev_writeb_at(dev, BANK_SELECT, bank); if (ret != CB_SUCCESS) printk(BIOS_NOTICE, "nct7802y: Select bank failed: %d\n", ret); return ret; } static inline int nct7802y_write(struct device *const dev, const u8 reg, const u8 value) { return i2c_dev_writeb_at(dev, reg, value); } static inline int nct7802y_update(struct device *const dev, const u8 reg, const u8 clear_mask, const u8 set_mask) { const int val = i2c_dev_readb_at(dev, reg); if (val < 0) return val; return i2c_dev_writeb_at(dev, reg, (val & ~clear_mask) | set_mask); } void nct7802y_init_fan(struct device *dev); void nct7802y_init_peci(struct device *dev); #endif /* DRIVERS_I2C_NCT7802Y_H */