FreeCalypso > hg > freecalypso-tools

annotate libpwon/etmoff.c @ 1012:11391cb6bdc0

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patch from fixeria: doc change from SE K2x0 to K2xx Since their discovery in late 2022, Sony Ericsson K200 and K220 phones were collectively referred to as SE K2x0 in FreeCalypso documentation. However, now that SE K205 has been discovered as yet another member of the same family (same PCBA in different case), it makes more sense to refer to the whole family as SE K2xx.
author Mychaela Falconia <falcon@freecalypso.org>
date Mon, 23 Sep 2024 12:23:20 +0000
parents ab54957dbe35
children
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ab54957dbe35 libpwon: implement -Petmoff mode
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1 /*
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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
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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];
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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);
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23 usleep(100000);
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24 write(target_fd, etm_devoff_pkt, sizeof etm_devoff_pkt);
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25 }