| /* 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 */ |