| /* SPDX-License-Identifier: GPL-2.0 */ |
| #ifndef _VBUTIL_ |
| #define _VBUTIL_ |
| static inline void xgifb_reg_set(unsigned long port, u8 index, u8 data) |
| { |
| outb(index, port); |
| outb(data, port + 1); |
| } |
| |
| static inline u8 xgifb_reg_get(unsigned long port, u8 index) |
| { |
| outb(index, port); |
| return inb(port + 1); |
| } |
| |
| static inline void xgifb_reg_and_or(unsigned long port, u8 index, |
| unsigned int data_and, unsigned int data_or) |
| { |
| u8 temp; |
| |
| temp = xgifb_reg_get(port, index); |
| temp = (u8)((temp & data_and) | data_or); |
| xgifb_reg_set(port, index, temp); |
| } |
| |
| static inline void xgifb_reg_and(unsigned long port, u8 index, |
| unsigned int data_and) |
| { |
| u8 temp; |
| |
| temp = xgifb_reg_get(port, index); |
| temp = (u8)(temp & data_and); |
| xgifb_reg_set(port, index, temp); |
| } |
| |
| static inline void xgifb_reg_or(unsigned long port, u8 index, |
| unsigned int data_or) |
| { |
| u8 temp; |
| |
| temp = xgifb_reg_get(port, index); |
| temp |= data_or; |
| xgifb_reg_set(port, index, temp); |
| } |
| #endif |
| |
