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1 | // ========== Copyright Header Begin ========================================== |
2 | // | |
3 | // OpenSPARC T2 Processor File: sam_rtlif.cpp | |
4 | // Copyright (C) 1995-2007 Sun Microsystems, Inc. All Rights Reserved | |
5 | // 4150 Network Circle, Santa Clara, California 95054, U.S.A. | |
6 | // | |
7 | // * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. | |
8 | // | |
9 | // This program is free software; you can redistribute it and/or modify | |
10 | // it under the terms of the GNU General Public License as published by | |
11 | // the Free Software Foundation; version 2 of the License. | |
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, MA 02111-1307 USA | |
21 | // | |
22 | // For the avoidance of doubt, and except that if any non-GPL license | |
23 | // choice is available it will apply instead, Sun elects to use only | |
24 | // the General Public License version 2 (GPLv2) at this time for any | |
25 | // software where a choice of GPL license versions is made | |
26 | // available with the language indicating that GPLv2 or any later version | |
27 | // may be used, or where a choice of which version of the GPL is applied is | |
28 | // otherwise unspecified. | |
29 | // | |
30 | // Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, | |
31 | // CA 95054 USA or visit www.sun.com if you need additional information or | |
32 | // have any questions. | |
33 | // | |
34 | // ========== Copyright Header End ============================================ | |
35 | // ========== Copyright Header Begin ========================================== | |
36 | // | |
37 | // OpenSPARC T2 Processor File: sam_rtlif.cpp | |
38 | // Copyright (C) 1995-2007 Sun Microsystems, Inc. All Rights Reserved | |
39 | // 4150 Network Circle, Santa Clara, California 95054, U.S.A. | |
40 | // | |
41 | // * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. | |
42 | // | |
43 | // This program is free software; you can redistribute it and/or modify | |
44 | // it under the terms of the GNU General Public License as published by | |
45 | // the Free Software Foundation; version 2 of the License. | |
46 | // | |
47 | // This program is distributed in the hope that it will be useful, | |
48 | // but WITHOUT ANY WARRANTY; without even the implied warranty of | |
49 | // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
50 | // GNU General Public License for more details. | |
51 | // | |
52 | // You should have received a copy of the GNU General Public License | |
53 | // along with this program; if not, write to the Free Software | |
54 | // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
55 | // | |
56 | // For the avoidance of doubt, and except that if any non-GPL license | |
57 | // choice is available it will apply instead, Sun elects to use only | |
58 | // the General Public License version 2 (GPLv2) at this time for any | |
59 | // software where a choice of GPL license versions is made | |
60 | // available with the language indicating that GPLv2 or any later version | |
61 | // may be used, or where a choice of which version of the GPL is applied is | |
62 | // otherwise unspecified. | |
63 | // | |
64 | // Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, | |
65 | // CA 95054 USA or visit www.sun.com if you need additional information or | |
66 | // have any questions. | |
67 | // | |
68 | // ========== Copyright Header End ============================================ | |
69 | // These are functions that must be implement for RTL | |
70 | ||
71 | #include "loader.h" | |
72 | #include "sharedmem.h" | |
73 | ||
74 | #include "niu_debug_functions.h" | |
75 | ||
76 | extern sharedmem *shmem; | |
77 | ||
78 | unsigned int compute_crc(unsigned char *buf, int len) { | |
79 | static unsigned int poly = 0xedb88320; | |
80 | unsigned int crc = 0xffffffff; | |
81 | for(int i=0;i<len;i++) { | |
82 | crc = crc ^ buf[i]; | |
83 | for(int j=0;j<8; j++) | |
84 | crc = (crc >> 1) ^ ((crc & 0x1) ? poly : 0); | |
85 | } | |
86 | return ~crc; | |
87 | } | |
88 | ||
89 | /// MMI APIs | |
90 | ||
91 | int mmi_map_physio(uint64_t base, uint64_t size, void* obj, mmi_access access) { | |
92 | // For testing | |
93 | module_info.base = base; | |
94 | module_info.size = size; | |
95 | module_info.access_fn = access; | |
96 | //////// | |
97 | ||
98 | // RTL stuff goes here. | |
99 | printf("mmi_map_physio called!\n"); | |
100 | ||
101 | return 0; | |
102 | } | |
103 | ||
104 | void mmi_memread(uint64_t paddr, uint8_t * data, uint64_t size, SAM_DeviceId sam_id) { | |
105 | printf("mmi_memread: %llx %llx\n", paddr, size); | |
106 | shmem->sii_read_req(paddr, data, size); | |
107 | printf("MMI_MEMREAD: ADDR:%llx\n", paddr); | |
108 | niu_debug_hex_dump("MMI_MEMREAD", data, size); | |
109 | fflush(stdout); | |
110 | } | |
111 | ||
112 | void mmi_memwrite(uint64_t paddr, const uint8_t * data, uint64_t size, SAM_DeviceId sam_id) { | |
113 | printf("mmi_memwrite: %llx %llx\n", paddr, size); | |
114 | niu_debug_hex_dump("MMI_MEMWRITE", data, size); | |
115 | shmem->sii_write_req(paddr, (unsigned char*)data, size); | |
116 | } | |
117 | ||
118 | int netsim_connect(const char *netswitch) { | |
119 | printf("netsim_connect: %s\n", netswitch); | |
120 | // RTL stuff | |
121 | return 0; | |
122 | } | |
123 | ||
124 | int netsim_close(int fd) { | |
125 | printf("netsim_close: %d\n", fd); | |
126 | // RTL stuff | |
127 | return 0; | |
128 | } | |
129 | ||
130 | extern "C" int netsim_getmsg (int fd, char * buf, int maxlen, swtchdr * hdr) { | |
131 | // RTL stuff | |
132 | fd--; | |
133 | int size; | |
134 | ||
135 | if(fd == 0) | |
136 | shmem->rx0_wait_packet(size, (unsigned char*) buf); | |
137 | else | |
138 | shmem->rx1_wait_packet(size, (unsigned char*) buf); | |
139 | ||
140 | hdr->pkt_type = 0; | |
141 | hdr->pkt_len = size; | |
142 | ||
143 | if(fd == 0) | |
144 | niu_debug_hex_dump("NETSIM_GETMSG P0", (unsigned char *)buf, size); | |
145 | else | |
146 | niu_debug_hex_dump("NETSIM_GETMSG P1", (unsigned char *)buf, size); | |
147 | ||
148 | return size; | |
149 | } | |
150 | ||
151 | extern "C" int netsim_putmsg (int fd, char * buf, int len, swtchdr * hdr) { | |
152 | // RTL stuff | |
153 | fd--; | |
154 | printf("NETSIM_PUTMSG: Port %d \n", fd); | |
155 | ||
156 | //Add CRC ; sam does not compute CRC | |
157 | unsigned int crc = compute_crc((unsigned char*)buf, len-4); | |
158 | for(int i=0;i<4;i++) | |
159 | buf[len+i-4] = (crc >> (i*8)) & 0xff; | |
160 | ||
161 | niu_debug_hex_dump("NETSIM_PUTMSG", (unsigned char *)buf, len); | |
162 | ||
163 | if(fd == 0) | |
164 | shmem->tx0_send_packet(len,(unsigned char *)buf); | |
165 | else | |
166 | shmem->tx1_send_packet(len,(unsigned char *)buf); | |
167 | ||
168 | return len; | |
169 | } | |
170 | ||
171 | int ncu_interrupt(uint32_t cpuid, uint32_t data) { | |
172 | printf("ncu_interrup: %x %x \n", cpuid, data); | |
173 | shmem->deliverInterrupt(data); | |
174 | return 0; | |
175 | } | |
176 | ||
177 |