diff options
Diffstat (limited to 'firmware/src/simtrace/main_simtrace.c')
| -rw-r--r-- | firmware/src/simtrace/main_simtrace.c | 62 |
1 files changed, 46 insertions, 16 deletions
diff --git a/firmware/src/simtrace/main_simtrace.c b/firmware/src/simtrace/main_simtrace.c index 733f060..0f2bfc5 100644 --- a/firmware/src/simtrace/main_simtrace.c +++ b/firmware/src/simtrace/main_simtrace.c @@ -52,6 +52,46 @@ enum simtrace_md { SIMTRACE_PIO_IO | \ SIMTRACE_PIO_IO_T) +enum simtrace_power_mode { + SIMTRACE_PWR_OFF, + SIMTRACE_PWR_PASS, + SIMTRACE_PWR_LDO +}; + +void simtrace_set_power(enum simtrace_power_mode mode) +{ + switch (mode) { + case SIMTRACE_PWR_PASS: + /* switch VCC_SIM pin into output mode, as in the first + * generation prototype we use it directly to supply Vcc + * to the SIM. Pin unused in v1.0(p) and v1.1p */ + AT91F_PIO_SetOutput(AT91C_BASE_PIOA, SIMTRACE_PIO_VCC_SIM); + /* v1.0/1.1: pass-throguh power from the reader/phone (FPC) */ + AT91F_PIO_ClearOutput(AT91C_BASE_PIOA, SIMTRACE_PIO_SIM_LDOEN); + AT91F_PIO_ClearOutput(AT91C_BASE_PIOA, SIMTRACE_PIO_SIM_nPWRFWD); + break; + case SIMTRACE_PWR_LDO: + /* switch VCC_SIM pin into output mode, as in the first + * generation prototype we use it directly to supply Vcc + * to the SIM. Pin unused in v1.0(p) and v1.1p */ + AT91F_PIO_SetOutput(AT91C_BASE_PIOA, SIMTRACE_PIO_VCC_SIM); + /* v1.0/1.1: power from the internal 3.3V LDO */ + AT91F_PIO_SetOutput(AT91C_BASE_PIOA, SIMTRACE_PIO_SIM_nPWRFWD); + AT91F_PIO_SetOutput(AT91C_BASE_PIOA, SIMTRACE_PIO_SIM_LDOEN); + break; + default: + case SIMTRACE_PWR_OFF: + /* switch VCC_SIM pin into output mode, as in the first + * generation prototype we use it directly to supply Vcc + * to the SIM. Pin unused in v1.0(p) and v1.1p */ + AT91F_PIO_ClearOutput(AT91C_BASE_PIOA, SIMTRACE_PIO_VCC_SIM); + /* switch all power paths off */ + AT91F_PIO_ClearOutput(AT91C_BASE_PIOA, SIMTRACE_PIO_SIM_LDOEN); + AT91F_PIO_SetOutput(AT91C_BASE_PIOA, SIMTRACE_PIO_SIM_nPWRFWD); + break; + } +} + static void simtrace_set_mode(enum simtrace_md mode) { switch (mode) { @@ -62,22 +102,6 @@ static void simtrace_set_mode(enum simtrace_md mode) AT91F_PIO_CfgInput(AT91C_BASE_PIOA, UART1_PINS); AT91F_PIO_CfgPullupDis(AT91C_BASE_PIOA, UART1_PINS); - /* switch VCC_SIM pin into output mode, as in the first - * generation prototype we use it directly to supply Vcc - * to the SIM */ - - /* pin unused in v1.0(p) and v1.1p */ - AT91F_PIO_CfgOutput(AT91C_BASE_PIOA, SIMTRACE_PIO_VCC_SIM); - AT91F_PIO_SetOutput(AT91C_BASE_PIOA, SIMTRACE_PIO_VCC_SIM); - /* for v1.0(p) and v1.1p, VCC_SIM can either be powered by - * VCC_PHONE using SIM_PWRFWD, or by the LDO using - * SIM_PWREN. they should be set exclusive. per default - * use VCC_PHONE */ - AT91F_PIO_CfgOutput(AT91C_BASE_PIOA, SIMTRACE_PIO_SIM_PWRFWD); - AT91F_PIO_SetOutput(AT91C_BASE_PIOA, SIMTRACE_PIO_SIM_PWRFWD); - AT91F_PIO_CfgOutput(AT91C_BASE_PIOA, SIMTRACE_PIO_SIM_PWREN); - AT91F_PIO_ClearOutput(AT91C_BASE_PIOA, SIMTRACE_PIO_SIM_PWREN); - /* switch UART0 pins to 'ISO7816 card mode' */ AT91F_PIO_CfgInput(AT91C_BASE_PIOA, UART0_PINS); AT91F_PIO_CfgPullupDis(AT91C_BASE_PIOA, UART0_PINS); @@ -108,6 +132,12 @@ void _init_func(void) led_switch(1, 0); led_switch(2, 1); + AT91F_PIO_CfgOutput(AT91C_BASE_PIOA, SIMTRACE_PIO_VCC_SIM); + AT91F_PIO_CfgOutput(AT91C_BASE_PIOA, SIMTRACE_PIO_SIM_nPWRFWD); + AT91F_PIO_CfgOutput(AT91C_BASE_PIOA, SIMTRACE_PIO_SIM_LDOEN); + /* default: use local LDO to supply power */ + simtrace_set_power(SIMTRACE_PWR_LDO); + iso_uart_rx_mode(); simtrace_set_mode(SIMTRACE_MD_SNIFFER); } |