FreeCalypso > hg > fc-magnetite
comparison src/cs/drivers/drv_app/sim/sim.c @ 662:8cd8fd15a095
SIM speed enhancement re-enabled and made configurable
TI's original code supported SIM speed enhancement, but Openmoko had it
disabled, and OM's disabling of speed enhancement somehow caused certain
SIM cards to start working which didn't work before (OM's bug #666).
Because our FC community is much smaller in year 2020 than OM's community
was in their day, we are not able to find one of those #666-affected SIMs,
thus the real issue they had encountered remains elusive. Thus our
solution is to re-enable SIM speed enhancement and simply wait for if
and when someone runs into a #666-affected SIM once again. We provide
a SIM_allow_speed_enhancement global variable that allows SIM speed
enhancement to be enabled or disabled per session, and an /etc/SIM_spenh
file in FFS that allows it to enabled or disabled on a non-volatile
basis. SIM speed enhancement is now enabled by default.
author | Mychaela Falconia <falcon@freecalypso.org> |
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date | Sun, 24 May 2020 05:02:28 +0000 |
parents | 945cf7f506b2 |
children |
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661:ba45f6514fb1 | 662:8cd8fd15a095 |
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34 #include "sim.h" | 34 #include "sim.h" |
35 #include <string.h> | 35 #include <string.h> |
36 #include "armio/armio.h" | 36 #include "armio/armio.h" |
37 #include "ind_os.h" | 37 #include "ind_os.h" |
38 #include "abb/abb.h" //controls level shifter of ABB | 38 #include "abb/abb.h" //controls level shifter of ABB |
39 #include "ffs/ffs_api.h" /* FreeCalypso addition */ | |
39 | 40 |
40 | 41 |
41 //current voltage mode 3V or 5V, or 1.8V | 42 //current voltage mode 3V or 5V, or 1.8V |
42 SYS_UWORD8 CurrentVolt; | 43 SYS_UWORD8 CurrentVolt; |
44 | |
45 /* FreeCalypso addition */ | |
46 SYS_UWORD8 SIM_allow_speed_enhancement = 1; | |
43 | 47 |
44 | 48 |
45 | 49 |
46 #ifdef SIM_DEBUG_TRACE | 50 #ifdef SIM_DEBUG_TRACE |
47 | 51 |
913 { | 917 { |
914 int n; | 918 int n; |
915 SIM_PORT *p; | 919 SIM_PORT *p; |
916 volatile SYS_UWORD32 dum; | 920 volatile SYS_UWORD32 dum; |
917 | 921 |
922 /* FreeCalypso addition */ | |
923 ffs_file_read("/etc/SIM_spenh", &SIM_allow_speed_enhancement, 1); | |
924 | |
918 // Initialize registers | 925 // Initialize registers |
919 p = &(Sim[0]); | 926 p = &(Sim[0]); |
920 p->c = (SIM_CONTROLLER *) SIM_CMD; | 927 p->c = (SIM_CONTROLLER *) SIM_CMD; |
921 | 928 |
922 p->errorSIM = 0; | 929 p->errorSIM = 0; |
2438 { | 2445 { |
2439 SIM_Calcetu (p); | 2446 SIM_Calcetu (p); |
2440 return (0); | 2447 return (0); |
2441 } | 2448 } |
2442 | 2449 |
2443 #if 0 // Dmitriy: removed by TI patch | 2450 if (TA1 >= 0x94 && SIM_allow_speed_enhancement) |
2444 if (TA1 >= 0x94) //speed enhancement | |
2445 { | 2451 { |
2446 // JYT 26/9/2003 to check correct behavior of the SIM Driver vs the PPS. | 2452 // JYT 26/9/2003 to check correct behavior of the SIM Driver vs the PPS. |
2447 //#ifdef NOTTOLOADBECAUSENOTTESTED | 2453 //#ifdef NOTTOLOADBECAUSENOTTESTED |
2448 // SIM_Calcetu (p); | 2454 // SIM_Calcetu (p); |
2449 // return (0); //temporary disabling of speed enhancement feature | 2455 // return (0); //temporary disabling of speed enhancement feature |
2454 p->xbuf[1] = 0x10; | 2460 p->xbuf[1] = 0x10; |
2455 p->xbuf[2] = 0x94; // if speed enhancement, then at least (and at most) F = 512 and D = 8 is supported | 2461 p->xbuf[2] = 0x94; // if speed enhancement, then at least (and at most) F = 512 and D = 8 is supported |
2456 } | 2462 } |
2457 //#endif | 2463 //#endif |
2458 } | 2464 } |
2459 #endif | |
2460 | 2465 |
2461 if ((TA1 == 0x11) || (TA1 == 0x01)) | 2466 if ((TA1 == 0x11) || (TA1 == 0x01)) |
2462 { | 2467 { |
2463 SIM_Calcetu (p); | 2468 SIM_Calcetu (p); |
2464 return (0); | 2469 return (0); |