FreeCalypso > hg > freecalypso-tools

annotate loadtools/old/gtapower.c @ 1014:961efadd530a default tip

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fc-shell TCH DL handler: add support for CSD modes TCH DL capture mechanism in FC Tourmaline firmware has been extended to support CSD modes in addition to speech - add the necessary support on the host tools side. It needs to be noted that this mechanism in its present state does NOT provide the debug utility value that was sought: as we learned only after the code was implemented, TI's DSP has a misfeature in that the buffer we are reading (a_dd_0[]) is zeroed out when the IDS block is enabled, i.e., we are reading all zeros and not the real DL bits we were after. But since the code has already been written, we are keeping it - perhaps we can do some tests with IDS disabled.
author Mychaela Falconia <falcon@freecalypso.org>
date Tue, 26 Nov 2024 06:27:43 +0000
parents 62a91abc0300
children
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1 /*
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2 * This module is included only when loadtools are being built to run on the
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3 * GTA0x application processor (AP). It provides automated modem power
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4 * control, i.e., coordinates modem power control with loadtools operations
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5 * for convenience.
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6 */
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7
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8 #include <sys/types.h>
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9 #include <sys/file.h>
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10 #include <stdio.h>
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11 #include <stdlib.h>
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12 #include <unistd.h>
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13
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14 /*
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15 * Check this pathname: it is correct for the kernel version I'm using
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16 * on my test GTA02, but it differs for some other kernel versions.
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17 */
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18 static char modem_powerctl_pathname[] =
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19 "/sys/bus/platform/devices/gta02-pm-gsm.0/power_on";
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20
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21 void
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22 set_gta_modem_power_ctrl(boolval)
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23 {
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24 char strbuf[16];
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25 int len, fd;
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26
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27 len = sprintf(strbuf, "%d\n", boolval);
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28 fd = open(modem_powerctl_pathname, O_WRONLY);
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29 if (fd < 0) {
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30 perror(modem_powerctl_pathname);
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31 exit(1);
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32 }
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33 write(fd, strbuf, len);
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34 close(fd);
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35 }
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36
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37 void
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38 fork_gta_modem_poweron()
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39 {
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40 int i;
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41
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42 i = fork();
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43 if (i < 0) {
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44 perror("fork");
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45 exit(1);
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46 }
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47 if (i)
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48 return;
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49 printf("Toggling %s\n", modem_powerctl_pathname);
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50 set_gta_modem_power_ctrl(0);
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51 usleep(350000);
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52 set_gta_modem_power_ctrl(1);
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53 exit(0);
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54 }