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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 1999 | decky | 1 | /* |
| 2071 | jermar | 2 | * Copyright (c) 2006 Martin Decky |
| 1999 | decky | 3 | * All rights reserved. |
| 4 | * |
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| 5 | * Redistribution and use in source and binary forms, with or without |
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| 6 | * modification, are permitted provided that the following conditions |
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| 7 | * are met: |
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| 8 | * |
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| 9 | * - Redistributions of source code must retain the above copyright |
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| 10 | * notice, this list of conditions and the following disclaimer. |
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| 11 | * - Redistributions in binary form must reproduce the above copyright |
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| 12 | * notice, this list of conditions and the following disclaimer in the |
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| 13 | * documentation and/or other materials provided with the distribution. |
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| 14 | * - The name of the author may not be used to endorse or promote products |
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| 15 | * derived from this software without specific prior written permission. |
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| 16 | * |
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| 17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
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| 18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
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| 19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
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| 20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
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| 21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
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| 22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
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| 23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
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| 24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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| 25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
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| 26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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| 27 | */ |
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| 28 | |||
| 29 | /** @addtogroup rd |
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| 30 | * @{ |
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| 31 | */ |
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| 32 | |||
| 33 | /** |
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| 34 | * @file rd.c |
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| 35 | * @brief Initial RAM disk for HelenOS. |
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| 36 | */ |
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| 37 | |||
| 38 | #include <ipc/ipc.h> |
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| 39 | #include <ipc/services.h> |
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| 40 | #include <ipc/ns.h> |
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| 2005 | decky | 41 | #include <sysinfo.h> |
| 42 | #include <as.h> |
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| 43 | #include <ddi.h> |
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| 44 | #include <align.h> |
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| 45 | #include <bool.h> |
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| 1999 | decky | 46 | #include <errno.h> |
| 47 | #include <async.h> |
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| 2248 | jelen | 48 | #include <stdlib.h> |
| 49 | #include <unistd.h> |
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| 50 | #include <align.h> |
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| 51 | #include <async.h> |
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| 52 | #include <ddi.h> |
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| 53 | #include <sysinfo.h> |
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| 54 | #include <libarch/ddi.h> |
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| 1999 | decky | 55 | |
| 2248 | jelen | 56 | #include "rd.h" |
| 1999 | decky | 57 | |
| 2248 | jelen | 58 | #define EOK 0 |
| 59 | |||
| 60 | static void * rd_addr; |
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| 61 | |||
| 1999 | decky | 62 | static void rd_connection(ipc_callid_t iid, ipc_call_t *icall) |
| 63 | { |
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| 64 | ipc_callid_t callid; |
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| 65 | ipc_call_t call; |
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| 66 | int retval; |
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| 67 | |||
| 68 | ipc_answer_fast(iid, 0, 0, 0); |
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| 2248 | jelen | 69 | int block_size = 512; |
| 70 | ipcarg_t dst, offset; |
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| 1999 | decky | 71 | |
| 72 | while (1) { |
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| 73 | callid = async_get_call(&call); |
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| 74 | switch (IPC_GET_METHOD(call)) { |
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| 75 | case IPC_M_PHONE_HUNGUP: |
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| 76 | ipc_answer_fast(callid, 0,0,0); |
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| 77 | return; |
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| 2248 | jelen | 78 | case BD_READ_BLOCK: |
| 79 | //returnt the block data |
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| 80 | dst = IPC_GET_ARG1(call); |
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| 81 | offset = IPC_GET_ARG2(call); |
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| 82 | //copy_from_uspace(dst, rd_addr+offset,block_size); |
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| 83 | memcpy((void *) dst, rd_addr+offset, block_size); |
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| 84 | retval = EOK; |
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| 85 | break; |
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| 1999 | decky | 86 | default: |
| 87 | retval = EINVAL; |
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| 88 | } |
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| 89 | ipc_answer_fast(callid, retval, 0, 0); |
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| 90 | } |
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| 91 | } |
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| 92 | |||
| 93 | |||
| 2005 | decky | 94 | static bool rd_init(void) |
| 1999 | decky | 95 | { |
| 2005 | decky | 96 | size_t rd_size = sysinfo_value("rd.size"); |
| 97 | void * rd_ph_addr = (void *) sysinfo_value("rd.address.physical"); |
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| 2015 | jermar | 98 | int rd_color = (int) sysinfo_value("rd.address.color"); |
| 1999 | decky | 99 | |
| 2005 | decky | 100 | if (rd_size == 0) |
| 101 | return false; |
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| 1999 | decky | 102 | |
| 2248 | jelen | 103 | rd_addr = as_get_mappable_page(rd_size, rd_color); |
| 2005 | decky | 104 | |
| 2012 | jermar | 105 | physmem_map(rd_ph_addr, rd_addr, ALIGN_UP(rd_size, PAGE_SIZE) >> PAGE_WIDTH, AS_AREA_READ | AS_AREA_WRITE); |
| 2005 | decky | 106 | |
| 107 | return true; |
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| 108 | } |
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| 1999 | decky | 109 | |
| 110 | |||
| 2005 | decky | 111 | int main(int argc, char **argv) |
| 112 | { |
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| 113 | if (rd_init()) { |
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| 114 | ipcarg_t phonead; |
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| 115 | |||
| 116 | async_set_client_connection(rd_connection); |
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| 117 | |||
| 118 | /* Register service at nameserver */ |
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| 119 | if (ipc_connect_to_me(PHONE_NS, SERVICE_RD, 0, &phonead) != 0) |
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| 120 | return -1; |
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| 121 | |||
| 122 | async_manager(); |
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| 123 | |||
| 124 | /* Never reached */ |
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| 125 | return 0; |
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| 126 | } |
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| 127 | |||
| 128 | return -1; |
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| 1999 | decky | 129 | } |
| 130 | |||
| 131 | /** |
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| 132 | * @} |
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| 133 | */ |