xref: /kernel/linux/linux-5.10/drivers/net/ethernet/intel/ixgbe/ixgbe_phy.h

/* SPDX-License-Identifier: GPL-2.0 */
/* Copyright(c) 1999 - 2018 Intel Corporation. */

#ifndef _IXGBE_PHY_H_
#define _IXGBE_PHY_H_

#include "ixgbe_type.h"
#define IXGBE_I2C_EEPROM_DEV_ADDR    0xA0
#define IXGBE_I2C_EEPROM_DEV_ADDR2   0xA2

/* EEPROM byte offsets */
#define IXGBE_SFF_IDENTIFIER		0x0
#define IXGBE_SFF_IDENTIFIER_SFP	0x3
#define IXGBE_SFF_VENDOR_OUI_BYTE0	0x25
#define IXGBE_SFF_VENDOR_OUI_BYTE1	0x26
#define IXGBE_SFF_VENDOR_OUI_BYTE2	0x27
#define IXGBE_SFF_1GBE_COMP_CODES	0x6
#define IXGBE_SFF_10GBE_COMP_CODES	0x3
#define IXGBE_SFF_CABLE_TECHNOLOGY	0x8
#define IXGBE_SFF_CABLE_SPEC_COMP	0x3C
#define IXGBE_SFF_SFF_8472_SWAP		0x5C
#define IXGBE_SFF_SFF_8472_COMP		0x5E
#define IXGBE_SFF_SFF_8472_OSCB		0x6E
#define IXGBE_SFF_SFF_8472_ESCB		0x76
#define IXGBE_SFF_IDENTIFIER_QSFP_PLUS	0xD
#define IXGBE_SFF_QSFP_VENDOR_OUI_BYTE0	0xA5
#define IXGBE_SFF_QSFP_VENDOR_OUI_BYTE1	0xA6
#define IXGBE_SFF_QSFP_VENDOR_OUI_BYTE2	0xA7
#define IXGBE_SFF_QSFP_CONNECTOR	0x82
#define IXGBE_SFF_QSFP_10GBE_COMP	0x83
#define IXGBE_SFF_QSFP_1GBE_COMP	0x86
#define IXGBE_SFF_QSFP_CABLE_LENGTH	0x92
#define IXGBE_SFF_QSFP_DEVICE_TECH	0x93

/* Bitmasks */
#define IXGBE_SFF_DA_PASSIVE_CABLE		0x4
#define IXGBE_SFF_DA_ACTIVE_CABLE		0x8
#define IXGBE_SFF_DA_SPEC_ACTIVE_LIMITING	0x4
#define IXGBE_SFF_1GBASESX_CAPABLE		0x1
#define IXGBE_SFF_1GBASELX_CAPABLE		0x2
#define IXGBE_SFF_1GBASET_CAPABLE		0x8
#define IXGBE_SFF_10GBASESR_CAPABLE		0x10
#define IXGBE_SFF_10GBASELR_CAPABLE		0x20
#define IXGBE_SFF_SOFT_RS_SELECT_MASK		0x8
#define IXGBE_SFF_SOFT_RS_SELECT_10G		0x8
#define IXGBE_SFF_SOFT_RS_SELECT_1G		0x0
#define IXGBE_SFF_ADDRESSING_MODE		0x4
#define IXGBE_SFF_DDM_IMPLEMENTED		0x40
#define IXGBE_SFF_QSFP_DA_ACTIVE_CABLE		0x1
#define IXGBE_SFF_QSFP_DA_PASSIVE_CABLE		0x8
#define IXGBE_SFF_QSFP_CONNECTOR_NOT_SEPARABLE	0x23
#define IXGBE_SFF_QSFP_TRANSMITER_850NM_VCSEL	0x0
#define IXGBE_I2C_EEPROM_READ_MASK		0x100
#define IXGBE_I2C_EEPROM_STATUS_MASK		0x3
#define IXGBE_I2C_EEPROM_STATUS_NO_OPERATION	0x0
#define IXGBE_I2C_EEPROM_STATUS_PASS		0x1
#define IXGBE_I2C_EEPROM_STATUS_FAIL		0x2
#define IXGBE_I2C_EEPROM_STATUS_IN_PROGRESS	0x3
#define IXGBE_CS4227				0xBE    /* CS4227 address */
#define IXGBE_CS4227_GLOBAL_ID_LSB		0
#define IXGBE_CS4227_GLOBAL_ID_MSB		1
#define IXGBE_CS4227_SCRATCH			2
#define IXGBE_CS4227_EFUSE_PDF_SKU		0x19F
#define IXGBE_CS4223_SKU_ID			0x0010  /* Quad port */
#define IXGBE_CS4227_SKU_ID			0x0014  /* Dual port */
#define IXGBE_CS4227_RESET_PENDING		0x1357
#define IXGBE_CS4227_RESET_COMPLETE		0x5AA5
#define IXGBE_CS4227_RETRIES			15
#define IXGBE_CS4227_EFUSE_STATUS		0x0181
#define IXGBE_CS4227_LINE_SPARE22_MSB		0x12AD	/* Reg to set speed */
#define IXGBE_CS4227_LINE_SPARE24_LSB		0x12B0	/* Reg to set EDC */
#define IXGBE_CS4227_HOST_SPARE22_MSB		0x1AAD	/* Reg to set speed */
#define IXGBE_CS4227_HOST_SPARE24_LSB		0x1AB0	/* Reg to program EDC */
#define IXGBE_CS4227_EEPROM_STATUS		0x5001
#define IXGBE_CS4227_EEPROM_LOAD_OK		0x0001
#define IXGBE_CS4227_SPEED_1G			0x8000
#define IXGBE_CS4227_SPEED_10G			0
#define IXGBE_CS4227_EDC_MODE_CX1		0x0002
#define IXGBE_CS4227_EDC_MODE_SR		0x0004
#define IXGBE_CS4227_EDC_MODE_DIAG		0x0008
#define IXGBE_CS4227_RESET_HOLD			500	/* microseconds */
#define IXGBE_CS4227_RESET_DELAY		500	/* milliseconds */
#define IXGBE_CS4227_CHECK_DELAY		30	/* milliseconds */
#define IXGBE_PE				0xE0	/* Port expander addr */
#define IXGBE_PE_OUTPUT				1	/* Output reg offset */
#define IXGBE_PE_CONFIG				3	/* Config reg offset */
#define IXGBE_PE_BIT1				BIT(1)

/* Flow control defines */
#define IXGBE_TAF_SYM_PAUSE                  0x400
#define IXGBE_TAF_ASM_PAUSE                  0x800

/* Bit-shift macros */
#define IXGBE_SFF_VENDOR_OUI_BYTE0_SHIFT    24
#define IXGBE_SFF_VENDOR_OUI_BYTE1_SHIFT    16
#define IXGBE_SFF_VENDOR_OUI_BYTE2_SHIFT    8

/* Vendor OUIs: format of OUI is 0x[byte0][byte1][byte2][00] */
#define IXGBE_SFF_VENDOR_OUI_TYCO     0x00407600
#define IXGBE_SFF_VENDOR_OUI_FTL      0x00906500
#define IXGBE_SFF_VENDOR_OUI_AVAGO    0x00176A00
#define IXGBE_SFF_VENDOR_OUI_INTEL    0x001B2100

/* I2C SDA and SCL timing parameters for standard mode */
#define IXGBE_I2C_T_HD_STA  4
#define IXGBE_I2C_T_LOW     5
#define IXGBE_I2C_T_HIGH    4
#define IXGBE_I2C_T_SU_STA  5
#define IXGBE_I2C_T_HD_DATA 5
#define IXGBE_I2C_T_SU_DATA 1
#define IXGBE_I2C_T_RISE    1
#define IXGBE_I2C_T_FALL    1
#define IXGBE_I2C_T_SU_STO  4
#define IXGBE_I2C_T_BUF     5

#define IXGBE_SFP_DETECT_RETRIES	2

#define IXGBE_TN_LASI_STATUS_REG        0x9005
#define IXGBE_TN_LASI_STATUS_TEMP_ALARM 0x0008

/* SFP+ SFF-8472 Compliance code */
#define IXGBE_SFF_SFF_8472_UNSUP      0x00

s32 ixgbe_mii_bus_init(struct ixgbe_hw *hw);

s32 ixgbe_identify_phy_generic(struct ixgbe_hw *hw);
s32 ixgbe_reset_phy_generic(struct ixgbe_hw *hw);
s32 ixgbe_read_phy_reg_generic(struct ixgbe_hw *hw, u32 reg_addr,
			       u32 device_type, u16 *phy_data);
s32 ixgbe_write_phy_reg_generic(struct ixgbe_hw *hw, u32 reg_addr,
				u32 device_type, u16 phy_data);
s32 ixgbe_read_phy_reg_mdi(struct ixgbe_hw *hw, u32 reg_addr,
			   u32 device_type, u16 *phy_data);
s32 ixgbe_write_phy_reg_mdi(struct ixgbe_hw *hw, u32 reg_addr,
			    u32 device_type, u16 phy_data);
s32 ixgbe_setup_phy_link_generic(struct ixgbe_hw *hw);
s32 ixgbe_setup_phy_link_speed_generic(struct ixgbe_hw *hw,
				       ixgbe_link_speed speed,
				       bool autoneg_wait_to_complete);
s32 ixgbe_get_copper_link_capabilities_generic(struct ixgbe_hw *hw,
					       ixgbe_link_speed *speed,
					       bool *autoneg);
bool ixgbe_check_reset_blocked(struct ixgbe_hw *hw);

/* PHY specific */
s32 ixgbe_check_phy_link_tnx(struct ixgbe_hw *hw,
			     ixgbe_link_speed *speed,
			     bool *link_up);
s32 ixgbe_setup_phy_link_tnx(struct ixgbe_hw *hw);

s32 ixgbe_reset_phy_nl(struct ixgbe_hw *hw);
s32 ixgbe_set_copper_phy_power(struct ixgbe_hw *hw, bool on);
s32 ixgbe_identify_module_generic(struct ixgbe_hw *hw);
s32 ixgbe_identify_sfp_module_generic(struct ixgbe_hw *hw);
s32 ixgbe_get_sfp_init_sequence_offsets(struct ixgbe_hw *hw,
					u16 *list_offset,
					u16 *data_offset);
bool ixgbe_tn_check_overtemp(struct ixgbe_hw *hw);
s32 ixgbe_read_i2c_byte_generic(struct ixgbe_hw *hw, u8 byte_offset,
				u8 dev_addr, u8 *data);
s32 ixgbe_read_i2c_byte_generic_unlocked(struct ixgbe_hw *hw, u8 byte_offset,
					 u8 dev_addr, u8 *data);
s32 ixgbe_write_i2c_byte_generic(struct ixgbe_hw *hw, u8 byte_offset,
				 u8 dev_addr, u8 data);
s32 ixgbe_write_i2c_byte_generic_unlocked(struct ixgbe_hw *hw, u8 byte_offset,
					  u8 dev_addr, u8 data);
s32 ixgbe_read_i2c_eeprom_generic(struct ixgbe_hw *hw, u8 byte_offset,
				  u8 *eeprom_data);
s32 ixgbe_read_i2c_sff8472_generic(struct ixgbe_hw *hw, u8 byte_offset,
				   u8 *sff8472_data);
s32 ixgbe_write_i2c_eeprom_generic(struct ixgbe_hw *hw, u8 byte_offset,
				   u8 eeprom_data);
s32 ixgbe_read_i2c_combined_generic_int(struct ixgbe_hw *, u8 addr, u16 reg,
					u16 *val, bool lock);
s32 ixgbe_write_i2c_combined_generic_int(struct ixgbe_hw *, u8 addr, u16 reg,
					 u16 val, bool lock);
#endif /* _IXGBE_PHY_H_ */