diff options
Diffstat (limited to 'tmk_core/protocol/arm_atsam/d51_util.c')
| -rw-r--r-- | tmk_core/protocol/arm_atsam/d51_util.c | 165 |
1 files changed, 165 insertions, 0 deletions
diff --git a/tmk_core/protocol/arm_atsam/d51_util.c b/tmk_core/protocol/arm_atsam/d51_util.c new file mode 100644 index 000000000..91b58757c --- /dev/null +++ b/tmk_core/protocol/arm_atsam/d51_util.c @@ -0,0 +1,165 @@ +#include "d51_util.h" + +//Display unsigned 32-bit number through m15 +//Read as follows: 1230 = || ||| |||| | (note always ending toggle) +void m15_print(uint32_t x) +{ + int8_t t; + uint32_t n; + uint32_t p, p2; + + if (x < 10) t = 0; + else if (x < 100) t = 1; + else if (x < 1000) t = 2; + else if (x < 10000) t = 3; + else if (x < 100000) t = 4; + else if (x < 1000000) t = 5; + else if (x < 10000000) t = 6; + else if (x < 100000000) t = 7; + else if (x < 1000000000) t = 8; + else t = 9; + + while (t >= 0) + { + p2 = t; + p = 1; + while (p2--) p *= 10; + n = x / p; + x -= n * p; + while (n > 0) + { + m15_on; + n--; + m15_off; + } + //Will always end with an extra toggle + m15_on; + t--; + m15_off; + } +} + +//Display unsigned 32-bit number through debug led +//Read as follows: 1230 = [*] [* *] [* * *] [**] (note zero is fast double flash) +#define DLED_ONTIME 600000 +#define DLED_PAUSE 1000000 +volatile uint32_t w; +void dled_print(uint32_t x, uint8_t long_pause) +{ + int8_t t; + uint32_t n; + uint32_t p, p2; + + if (x < 10) t = 0; + else if (x < 100) t = 1; + else if (x < 1000) t = 2; + else if (x < 10000) t = 3; + else if (x < 100000) t = 4; + else if (x < 1000000) t = 5; + else if (x < 10000000) t = 6; + else if (x < 100000000) t = 7; + else if (x < 1000000000) t = 8; + else t = 9; + + while (t >= 0) + { + p2 = t; + p = 1; + while (p2--) p *= 10; + n = x / p; + x -= n * p; + if (!n) + { + led_on; + for (w = DLED_ONTIME / 4; w; w--); + led_off; + for (w = DLED_ONTIME / 4; w; w--); + led_on; + for (w = DLED_ONTIME / 4; w; w--); + led_off; + for (w = DLED_ONTIME / 4; w; w--); + n--; + } + else + { + while (n > 0) + { + led_on; + for (w = DLED_ONTIME; w; w--); + led_off; + for (w = DLED_ONTIME / 2; w; w--); + n--; + } + } + + for (w = DLED_PAUSE; w; w--); + t--; + } + + if (long_pause) + { + for (w = DLED_PAUSE * 4; w; w--); + } +} + +#ifdef DEBUG_BOOT_TRACING + +volatile uint32_t debug_code; + +void EIC_15_Handler() +{ + //This is only for non-functional keyboard troubleshooting and should be disabled after boot + //Intention is to lock up the keyboard here with repeating debug led code + while (1) + { + dled_print(debug_code, 1); + } +} + +void debug_code_init(void) +{ + DBGC(DC_UNSET); + + //Configure Ports for EIC on PB31 + PORT->Group[1].DIRCLR.reg = 1 << 31; //Input + PORT->Group[1].OUTSET.reg = 1 << 31; //High + PORT->Group[1].PINCFG[31].bit.INEN = 1; //Input Enable + PORT->Group[1].PINCFG[31].bit.PULLEN = 1; //Pull Enable + PORT->Group[1].PINCFG[31].bit.PMUXEN = 1; //Mux Enable + PORT->Group[1].PMUX[15].bit.PMUXO = 0; //Mux A + + //Enable CLK_EIC_APB + MCLK->APBAMASK.bit.EIC_ = 1; + + //Configure EIC + EIC->CTRLA.bit.SWRST = 1; + while (EIC->SYNCBUSY.bit.SWRST) {} + EIC->ASYNCH.reg = 1 << 15; + EIC->INTENSET.reg = 1 << 15; + EIC->CONFIG[1].bit.SENSE7 = 2; + EIC->CTRLA.bit.ENABLE = 1; + while (EIC->SYNCBUSY.bit.ENABLE) {} + + //Enable EIC IRQ + NVIC_EnableIRQ(EIC_15_IRQn); +} + +void debug_code_disable(void) +{ + //Disable EIC IRQ + NVIC_DisableIRQ(EIC_15_IRQn); + + //Disable EIC + EIC->CTRLA.bit.ENABLE = 0; + while (EIC->SYNCBUSY.bit.ENABLE) {} + + //Disable CLK_EIC_APB + MCLK->APBAMASK.bit.EIC_ = 0; +} + +#else + +void debug_code_init(void) {} +void debug_code_disable(void) {} + +#endif //DEBUG_BOOT_TRACING |