| wdenk | 4a55170 | 2003-10-08 23:26:14 +0000 | [diff] [blame] | 1 | /* |
| 2 | * (C) Copyright 2003, Psyent Corporation <www.psyent.com> |
| 3 | * Scott McNutt <smcnutt@psyent.com> |
| 4 | * |
| 5 | * See file CREDITS for list of people who contributed to this |
| 6 | * project. |
| 7 | * |
| 8 | * This program is free software; you can redistribute it and/or |
| 9 | * modify it under the terms of the GNU General Public License as |
| 10 | * published by the Free Software Foundation; either version 2 of |
| 11 | * the License, or (at your option) any later version. |
| 12 | * |
| 13 | * This program is distributed in the hope that it will be useful, |
| 14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 16 | * GNU General Public License for more details. |
| 17 | * |
| 18 | * You should have received a copy of the GNU General Public License |
| 19 | * along with this program; if not, write to the Free Software |
| 20 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, |
| 21 | * MA 02111-1307 USA |
| 22 | */ |
| 23 | |
| 24 | /************************************************************************* |
| 25 | * Altera Nios Standard Peripherals |
| 26 | ************************************************************************/ |
| 27 | |
| 28 | #ifndef __NIOSIO_H__ |
| 29 | #define __NIOSIO_H__ |
| 30 | |
| 31 | /*------------------------------------------------------------------------ |
| 32 | * UART |
| 33 | *----------------------------------------------------------------------*/ |
| 34 | typedef volatile struct nios_uart_t { |
| 35 | unsigned rxdata; /* Rx data reg */ |
| 36 | unsigned txdata; /* Tx data reg */ |
| 37 | unsigned status; /* Status reg */ |
| 38 | unsigned control; /* Control reg */ |
| 39 | unsigned divisor; /* Baud rate divisor reg */ |
| 40 | unsigned endofpacket; /* End-of-packet reg */ |
| 41 | }nios_uart_t; |
| 42 | |
| 43 | /* status register */ |
| 44 | #define NIOS_UART_PE (1 << 0) /* parity error */ |
| 45 | #define NIOS_UART_FE (1 << 1) /* frame error */ |
| 46 | #define NIOS_UART_BRK (1 << 2) /* break detect */ |
| 47 | #define NIOS_UART_ROE (1 << 3) /* rx overrun */ |
| 48 | #define NIOS_UART_TOE (1 << 4) /* tx overrun */ |
| 49 | #define NIOS_UART_TMT (1 << 5) /* tx empty */ |
| 50 | #define NIOS_UART_TRDY (1 << 6) /* tx ready */ |
| 51 | #define NIOS_UART_RRDY (1 << 7) /* rx ready */ |
| 52 | #define NIOS_UART_E (1 << 8) /* exception */ |
| 53 | #define NIOS_UART_DCTS (1 << 10) /* cts change */ |
| 54 | #define NIOS_UART_CTS (1 << 11) /* cts */ |
| 55 | #define NIOS_UART_EOP (1 << 12) /* eop detected */ |
| 56 | |
| 57 | /* control register */ |
| 58 | #define NIOS_UART_IPE (1 << 0) /* parity error int ena*/ |
| 59 | #define NIOS_UART_IFE (1 << 1) /* frame error int ena */ |
| 60 | #define NIOS_UART_IBRK (1 << 2) /* break detect int ena */ |
| 61 | #define NIOS_UART_IROE (1 << 3) /* rx overrun int ena */ |
| 62 | #define NIOS_UART_ITOE (1 << 4) /* tx overrun int ena */ |
| 63 | #define NIOS_UART_ITMT (1 << 5) /* tx empty int ena */ |
| 64 | #define NIOS_UART_ITRDY (1 << 6) /* tx ready int ena */ |
| 65 | #define NIOS_UART_IRRDY (1 << 7) /* rx ready int ena */ |
| 66 | #define NIOS_UART_IE (1 << 8) /* exception int ena */ |
| 67 | #define NIOS_UART_TBRK (1 << 9) /* transmit break */ |
| 68 | #define NIOS_UART_IDCTS (1 << 10) /* cts change int ena */ |
| 69 | #define NIOS_UART_RTS (1 << 11) /* rts */ |
| 70 | #define NIOS_UART_IEOP (1 << 12) /* eop detected int ena */ |
| 71 | |
| 72 | |
| 73 | /*------------------------------------------------------------------------ |
| 74 | * TIMER |
| 75 | *----------------------------------------------------------------------*/ |
| 76 | typedef volatile struct nios_timer_t { |
| 77 | unsigned status; /* Timer status reg */ |
| 78 | unsigned control; /* Timer control reg */ |
| 79 | unsigned periodl; /* Timeout period low */ |
| 80 | unsigned periodh; /* Timeout period high */ |
| 81 | unsigned snapl; /* Snapshot low */ |
| 82 | unsigned snaph; /* Snapshot high */ |
| 83 | }nios_timer_t; |
| 84 | |
| 85 | /* status register */ |
| 86 | #define NIOS_TIMER_TO (1 << 0) /* Timeout */ |
| 87 | #define NIOS_TIMER_RUN (1 << 1) /* Timer running */ |
| 88 | |
| 89 | /* control register */ |
| 90 | #define NIOS_TIMER_ITO (1 << 0) /* Timeout int ena */ |
| 91 | #define NIOS_TIMER_CONT (1 << 1) /* Continuous mode */ |
| 92 | #define NIOS_TIMER_START (1 << 2) /* Start timer */ |
| 93 | #define NIOS_TIMER_STOP (1 << 3) /* Stop timer */ |
| 94 | |
| 95 | #endif /* __NIOSIO_H__ */ |