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/* SPDX-License-Identifier: GPL-2.0-only */
#ifndef HUDSON_SMBUS_H
#define HUDSON_SMBUS_H
#include <stdint.h>
#define SMBHSTSTAT 0x0
#define SMBSLVSTAT 0x1
#define SMBHSTCTRL 0x2
#define SMBHSTCMD 0x3
#define SMBHSTADDR 0x4
#define SMBHSTDAT0 0x5
#define SMBHSTDAT1 0x6
#define SMBHSTBLKDAT 0x7
#define SMBSLVCTRL 0x8
#define SMBSLVCMD_SHADOW 0x9
#define SMBSLVEVT 0xa
#define SMBSLVDAT 0xc
#define AX_INDXC 0
#define AX_INDXP 2
#define AXCFG 4
#define ABCFG 6
#define RC_INDXC 1
#define RC_INDXP 3
#define AB_INDX 0xcd8
#define AB_DATA (AB_INDX + 4)
/* Between 1-10 seconds, We should never timeout normally
* Longer than this is just painful when a timeout condition occurs.
*/
#define SMBUS_TIMEOUT (100 * 1000 * 10)
#define abcfg_reg(reg, mask, val) \
alink_ab_indx((ABCFG), (reg), (mask), (val))
#define axcfg_reg(reg, mask, val) \
alink_ab_indx((AXCFG), (reg), (mask), (val))
#define axindxc_reg(reg, mask, val) \
alink_ax_indx((AX_INDXC), (reg), (mask), (val))
#define axindxp_reg(reg, mask, val) \
alink_ax_indx((AX_INDXP), (reg), (mask), (val))
#define rcindxc_reg(reg, port, mask, val) \
alink_rc_indx((RC_INDXC), (reg), (port), (mask), (val))
#define rcindxp_reg(reg, port, mask, val) \
alink_rc_indx((RC_INDXP), (reg), (port), (mask), (val))
int do_smbus_read_byte(u32 smbus_io_base, u32 device, u32 address);
int do_smbus_write_byte(u32 smbus_io_base, u32 device, u32 address, u8 val);
int do_smbus_recv_byte(u32 smbus_io_base, u32 device);
int do_smbus_send_byte(u32 smbus_io_base, u32 device, u8 val);
void alink_rc_indx(u32 reg_space, u32 reg_addr, u32 port, u32 mask, u32 val);
void alink_ab_indx(u32 reg_space, u32 reg_addr, u32 mask, u32 val);
void alink_ax_indx(u32 space /*c or p? */, u32 axindc, u32 mask, u32 val);
#endif
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