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annotate libpwon/etmoff.c @ 1011:6d9b10633f10 default tip

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etmsync Pirelli IMEI retrieval: fix poor use of printf() Bug reported by Vadim Yanitskiy <fixeria@osmocom.org>: the construct where a static-allocated string was passed to printf() without any format arguments causes newer compilers to report a security problem. Given that formatted output is not needed here, just fixed string output, change printf() to fputs(), and direct the error message to stderr while at it.
author Mychaela Falconia <falcon@freecalypso.org>
date Thu, 23 May 2024 17:29:57 +0000
parents ab54957dbe35
children
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ab54957dbe35 libpwon: implement -Petmoff mode
Mychaela Falconia <falcon@freecalypso.org>
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1 /*
ab54957dbe35 libpwon: implement -Petmoff mode
Mychaela Falconia <falcon@freecalypso.org>
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2 * This libpwon module implements -Petmoff mode: set the baud rate to 115200
ab54957dbe35 libpwon: implement -Petmoff mode
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3 * and send out ETM command doing Iota poweroff, triggering a VRPC reboot cycle
ab54957dbe35 libpwon: implement -Petmoff mode
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4 * on the USB-charging phone. The "wakeup shot" logic is a copy of what we do
ab54957dbe35 libpwon: implement -Petmoff mode
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5 * in rvinterf.
ab54957dbe35 libpwon: implement -Petmoff mode
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6 */
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7
ab54957dbe35 libpwon: implement -Petmoff mode
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8 #include <sys/types.h>
ab54957dbe35 libpwon: implement -Petmoff mode
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9 #include <unistd.h>
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10
ab54957dbe35 libpwon: implement -Petmoff mode
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11 extern int target_fd;
ab54957dbe35 libpwon: implement -Petmoff mode
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12
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13 static u_char wakeup_shot[64];
ab54957dbe35 libpwon: implement -Petmoff mode
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14 static u_char etm_devoff_pkt[9] =
ab54957dbe35 libpwon: implement -Petmoff mode
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15 {0x02, 0x14, 0x01, 0x67, 0x1E, 0x01, 0x00, 0x79, 0x02};
ab54957dbe35 libpwon: implement -Petmoff mode
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16
ab54957dbe35 libpwon: implement -Petmoff mode
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17 void
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18 bootctrl_do_etmoff()
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19 {
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20 set_fixed_baudrate("115200");
ab54957dbe35 libpwon: implement -Petmoff mode
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21 set_serial_nonblock(0);
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22 write(target_fd, wakeup_shot, sizeof wakeup_shot);
ab54957dbe35 libpwon: implement -Petmoff mode
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23 usleep(100000);
ab54957dbe35 libpwon: implement -Petmoff mode
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24 write(target_fd, etm_devoff_pkt, sizeof etm_devoff_pkt);
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25 }