/* Copyright (c) 2012-2016 Ben Croston Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */ #include #include #include #include "cpuinfo.h" int get_rpi_info(rpi_info *info) { FILE *fp; char buffer[1024]; char hardware[1024]; char revision[1024]; char *rev; int found = 0; int len; if ((fp = fopen("/proc/cpuinfo", "r")) == NULL) return -1; while(!feof(fp)) { fgets(buffer, sizeof(buffer), fp); sscanf(buffer, "Hardware : %s", hardware); if (strcmp(hardware, "BCM2708") == 0 || strcmp(hardware, "BCM2709") == 0 || strcmp(hardware, "BCM2835") == 0 || strcmp(hardware, "BCM2836") == 0 || strcmp(hardware, "BCM2837") == 0 ) { found = 1; } sscanf(buffer, "Revision : %s", revision); } fclose(fp); if (!found) return -1; if ((len = strlen(revision)) == 0) return -1; if (len >= 6 && strtol((char[]){revision[len-6],0}, NULL, 16) & 8) { // new scheme //info->rev = revision[len-1]-'0'; strcpy(info->revision, revision); switch (revision[len-2]) { case '0': info->type = "Model A"; info->p1_revision = 2; break; case '1': info->type = "Model B"; info->p1_revision = 2; break; case '2': info->type = "Model A+"; info->p1_revision = 3; break; case '3': info->type = "Model B+"; info->p1_revision = 3; break; case '4': info->type = "Pi 2 Model B"; info->p1_revision = 3; break; case '5': info->type = "Alpha"; info->p1_revision = 3; break; case '6': info->type = "Compute"; info->p1_revision = 0; break; case '8': info->type = "Pi 3 Model B"; info->p1_revision = 3; break; case '9': info->type = "Zero"; info->p1_revision = 3; break; default : info->type = "Unknown"; info->p1_revision = 3; break; } switch (revision[len-4]) { case '0': info->processor = "BCM2835"; break; case '1': info->processor = "BCM2836"; break; case '2': info->processor = "BCM2837"; break; default : info->processor = "Unknown"; break; } switch (revision[len-5]) { case '0': info->manufacturer = "Sony"; break; case '1': info->manufacturer = "Egoman"; break; case '2': info->manufacturer = "Embest"; break; case '4': info->manufacturer = "Embest"; break; default : info->manufacturer = "Unknown"; break; } switch (strtol((char[]){revision[len-6],0}, NULL, 16) & 7) { case 0: info->ram = "256M"; break; case 1: info->ram = "512M"; break; case 2: info->ram = "1024M"; break; default: info->ram = "Unknown"; break; } } else { // old scheme info->ram = "Unknown"; info->manufacturer = "Unknown"; info->processor = "Unknown"; info->type = "Unknown"; strcpy(info->revision, revision); // get last four characters (ignore preceeding 1000 for overvolt) if (len > 4) rev = (char *)&revision+len-4; else rev = revision; if ((strcmp(rev, "0002") == 0) || (strcmp(rev, "0003") == 0)) { info->type = "Model B"; info->p1_revision = 1; info->ram = "256M"; info->processor = "BCM2835"; } else if (strcmp(rev, "0004") == 0) { info->type = "Model B"; info->p1_revision = 2; info->ram = "256M"; info->manufacturer = "Sony"; info->processor = "BCM2835"; } else if (strcmp(rev, "0005") == 0) { info->type = "Model B"; info->p1_revision = 2; info->ram = "256M"; info->manufacturer = "Qisda"; info->processor = "BCM2835"; } else if (strcmp(rev, "0006") == 0) { info->type = "Model B"; info->p1_revision = 2; info->ram = "256M"; info->manufacturer = "Egoman"; info->processor = "BCM2835"; } else if (strcmp(rev, "0007") == 0) { info->type = "Model A"; info->p1_revision = 2; info->ram = "256M"; info->manufacturer = "Egoman"; info->processor = "BCM2835"; } else if (strcmp(rev, "0008") == 0) { info->type = "Model A"; info->p1_revision = 2; info->ram = "256M"; info->manufacturer = "Sony"; info->processor = "BCM2835"; } else if (strcmp(rev, "0009") == 0) { info->type = "Model A"; info->p1_revision = 2; info->ram = "256M"; info->manufacturer = "Qisda"; info->processor = "BCM2835"; } else if (strcmp(rev, "000d") == 0) { info->type = "Model B"; info->p1_revision = 2; info->ram = "512M"; info->manufacturer = "Egoman"; info->processor = "BCM2835"; } else if (strcmp(rev, "000e") == 0) { info->type = "Model B"; info->p1_revision = 2; info->ram = "512M"; info->manufacturer = "Sony"; info->processor = "BCM2835"; } else if (strcmp(rev, "000f") == 0) { info->type = "Model B"; info->p1_revision = 2; info->ram = "512M"; info->manufacturer = "Qisda"; info->processor = "BCM2835"; } else if ((strcmp(rev, "0011") == 0) || (strcmp(rev, "0014") == 0)) { info->type = "Compute Module"; info->p1_revision = 0; info->ram = "512M"; info->processor = "BCM2835"; } else if (strcmp(rev, "0012") == 0) { info->type = "Model A+"; info->p1_revision = 3; info->ram = "256M"; info->processor = "BCM2835"; } else if ((strcmp(rev, "0010") == 0) || (strcmp(rev, "0013") == 0)) { info->type = "Model B+"; info->p1_revision = 3; info->ram = "512M"; info->processor = "BCM2835"; } else { // don't know - assume revision 3 p1 connector info->p1_revision = 3; } } return 0; } /* 32 bits NEW 23: will be 1 for the new scheme, 0 for the old scheme MEMSIZE 20: 0=256M 1=512M 2=1G MANUFACTURER 16: 0=SONY 1=EGOMAN PROCESSOR 12: 0=2835 1=2836 TYPE 04: 0=MODELA 1=MODELB 2=MODELA+ 3=MODELB+ 4=Pi2 MODEL B 5=ALPHA 6=CM REV 00: 0=REV0 1=REV1 2=REV2 pi2 = 1<<23 | 2<<20 | 1<<12 | 4<<4 = 0xa01040 -------------------- SRRR MMMM PPPP TTTT TTTT VVVV S scheme (0=old, 1=new) R RAM (0=256, 1=512, 2=1024) M manufacturer (0='SONY',1='EGOMAN',2='EMBEST',3='UNKNOWN',4='EMBEST') P processor (0=2835, 1=2836 2=2837) T type (0='A', 1='B', 2='A+', 3='B+', 4='Pi 2 B', 5='Alpha', 6='Compute Module') V revision (0-15) */