projects / thirdparty / binutils-gdb.git / blame
| Commit | Line | Data |
|---|---|---|
| b34f6357 | 1 | /* frv device support |
| 32d0add0 | 2 | Copyright (C) 1998-2015 Free Software Foundation, Inc. |
| b34f6357 DB |
3 | Contributed by Red Hat. |
| 4 | ||
| 5 | This file is part of the GNU simulators. | |
| 6 | ||
| 7 | This program is free software; you can redistribute it and/or modify | |
| 8 | it under the terms of the GNU General Public License as published by | |
| 4744ac1b JB |
9 | the Free Software Foundation; either version 3 of the License, or |
| 10 | (at your option) any later version. | |
| b34f6357 DB |
11 | |
| 12 | This program is distributed in the hope that it will be useful, | |
| 13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 15 | GNU General Public License for more details. | |
| 16 | ||
| 4744ac1b JB |
17 | You should have received a copy of the GNU General Public License |
| 18 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ | |
| b34f6357 DB |
19 | |
| 20 | /* ??? All of this is just to get something going. wip! */ | |
| 21 | ||
| 22 | #include "sim-main.h" | |
| 23 | ||
| 24 | #ifdef HAVE_DV_SOCKSER | |
| 25 | #include "dv-sockser.h" | |
| 26 | #endif | |
| 27 | ||
| 28 | device frv_devices; | |
| 29 | ||
| 30 | int | |
| 31 | device_io_read_buffer (device *me, void *source, int space, | |
| 32 | address_word addr, unsigned nr_bytes, | |
| 33 | SIM_DESC sd, SIM_CPU *cpu, sim_cia cia) | |
| 34 | { | |
| 35 | if (STATE_ENVIRONMENT (sd) != OPERATING_ENVIRONMENT) | |
| 36 | return nr_bytes; | |
| 37 | ||
| 38 | #ifdef HAVE_DV_SOCKSER | |
| 39 | if (addr == UART_INCHAR_ADDR) | |
| 40 | { | |
| 41 | int c = dv_sockser_read (sd); | |
| 42 | if (c == -1) | |
| 43 | return 0; | |
| 44 | *(char *) source = c; | |
| 45 | return 1; | |
| 46 | } | |
| 47 | if (addr == UART_STATUS_ADDR) | |
| 48 | { | |
| 49 | int status = dv_sockser_status (sd); | |
| 50 | unsigned char *p = source; | |
| 51 | p[0] = 0; | |
| 52 | p[1] = (((status & DV_SOCKSER_INPUT_EMPTY) | |
| 53 | #ifdef UART_INPUT_READY0 | |
| 54 | ? UART_INPUT_READY : 0) | |
| 55 | #else | |
| 56 | ? 0 : UART_INPUT_READY) | |
| 57 | #endif | |
| 58 | + ((status & DV_SOCKSER_OUTPUT_EMPTY) ? UART_OUTPUT_READY : 0)); | |
| 59 | return 2; | |
| 60 | } | |
| 61 | #endif | |
| 62 | ||
| 63 | return nr_bytes; | |
| 64 | } | |
| 65 | ||
| 66 | int | |
| 67 | device_io_write_buffer (device *me, const void *source, int space, | |
| 68 | address_word addr, unsigned nr_bytes, | |
| 69 | SIM_DESC sd, SIM_CPU *cpu, sim_cia cia) | |
| 70 | { | |
| 71 | ||
| 72 | #if WITH_SCACHE | |
| 73 | if (addr == MCCR_ADDR) | |
| 74 | { | |
| 75 | if ((*(const char *) source & MCCR_CP) != 0) | |
| 76 | scache_flush (sd); | |
| 77 | return nr_bytes; | |
| 78 | } | |
| 79 | #endif | |
| 80 | ||
| 81 | if (STATE_ENVIRONMENT (sd) != OPERATING_ENVIRONMENT) | |
| 82 | return nr_bytes; | |
| 83 | ||
| 84 | #if HAVE_DV_SOCKSER | |
| 85 | if (addr == UART_OUTCHAR_ADDR) | |
| 86 | { | |
| 87 | int rc = dv_sockser_write (sd, *(char *) source); | |
| 88 | return rc == 1; | |
| 89 | } | |
| 90 | #endif | |
| 91 | ||
| 92 | return nr_bytes; | |
| 93 | } | |
| 94 | ||
| fb0cc53e | 95 | void device_error (device *me, const char *message, ...) {} |