| /* 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 |