FreeCalypso > hg > freecalypso-tools

annotate libpwon/etmoff.c @ 995:74024eb17e04

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fc-loadtool help: improve language regarding 16 MiB flash chips In FC project history, 16 MiB flash originally meant Pirelli DP-L10. Then we got FCDEV3B with the same flash (our own design), but now we are discovering more Calypso devices that used such large flash, both late Calypso era (Sony Ericsson K2x0) as well as much earlier ones (FIC FLUID devices.txt file with 2004 dates, Leonardo+ rev 5). Hence we need to migrate to more generic or neutral language in associated documentation, without giving elevated status to specific examples that drove our early project history.
author Mychaela Falconia <falcon@freecalypso.org>
date Sun, 03 Dec 2023 21:11:12 +0000
parents ab54957dbe35
children
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ab54957dbe35 libpwon: implement -Petmoff mode
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1 /*
ab54957dbe35 libpwon: implement -Petmoff mode
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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.
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6 */
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7
ab54957dbe35 libpwon: implement -Petmoff mode
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8 #include <sys/types.h>
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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;
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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};
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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");
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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 }