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Generalize SIM switching code and allow local/remote switching via USB

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This commit is contained in:
Harald Welte
2017-05-09 06:46:47 +02:00
parent 114e74d322
commit 5c583d3535
5 changed files with 93 additions and 32 deletions
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64
firmware/libboard/common/source/sim_switch.c Normal file
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/* Code to switch between local (physical) and remote (emulated) SIM */
#include "board.h"
#include "trace.h"
#include "sim_switch.h"
#ifdef PIN_SIM_SWITCH1
static const Pin pin_conn_usim1 = {PIO_PA20, PIOA, ID_PIOA, PIO_OUTPUT_0, PIO_DEFAULT};
#endif
#ifdef PIN_SIM_SWITCH2
static const Pin pin_conn_usim2 = {PIO_PA28, PIOA, ID_PIOA, PIO_OUTPUT_0, PIO_DEFAULT};
#endif
static int initialized = 0;
int sim_switch_use_physical(unsigned int nr, int physical)
{
const Pin *pin;
if (!initialized) {
TRACE_ERROR("Somebody forgot to call sim_switch_init()\r\n");
sim_switch_init();
}
TRACE_INFO("Modem %d: %s SIM\n\r", nr,
physical ? "physical" : "virtual");
switch (nr) {
#ifdef PIN_SIM_SWITCH1
case 1:
pin = &pin_conn_usim1;
break;
#endif
#ifdef PIN_SIM_SWITCH2
case 2:
pin = &pin_conn_usim2;
break;
#endif
default:
TRACE_ERROR("Invalid SIM%u\n\r", nr);
return -1;
}
if (physical)
PIO_Clear(pin);
else
PIO_Set(pin);
return 0;
}
int sim_switch_init(void)
{
int num_switch = 0;
#ifdef PIN_SIM_SWITCH1
PIO_Configure(&pin_conn_usim1, 1);
num_switch++;
#endif
#ifdef PIN_SIM_SWITCH2
PIO_Configure(&pin_conn_usim2, 1);
num_switch++;
#endif
return num_switch;
}