| /* pic.h - public Intel 8259 PIC APIs */ |
| |
| /* |
| * Copyright (c) 2015 Wind River Systems, Inc. |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| #ifndef __INCpich |
| #define __INCpich |
| |
| #ifdef __cplusplus |
| extern "C" { |
| #endif |
| |
| #if defined(CONFIG_PIC_DISABLE) |
| |
| /* programmable interrupt controller info (pair of cascaded 8259A devices) */ |
| |
| #define PIC_MASTER_BASE_ADRS 0x20 |
| #define PIC_SLAVE_BASE_ADRS 0xa0 |
| #define PIC_REG_ADDR_INTERVAL 1 |
| |
| /* register definitions */ |
| #define PIC_ADRS(baseAdrs, reg) (baseAdrs + (reg * PIC_REG_ADDR_INTERVAL)) |
| |
| #define PIC_PORT2(base) PIC_ADRS(base, 0x01) /* port 2 */ |
| |
| #ifndef _ASMLANGUAGE |
| |
| extern int _i8259_init(struct device *unused); |
| |
| #endif /* _ASMLANGUAGE */ |
| |
| #endif /* CONFIG_PIC_DISABLE */ |
| |
| #ifdef __cplusplus |
| } |
| #endif |
| |
| #endif /* __INCpich */ |
