diff options
Diffstat (limited to 'platforms/arm_atsam')
| -rw-r--r-- | platforms/arm_atsam/bootloaders/md_boot.c (renamed from platforms/arm_atsam/bootloader.c) | 43 | ||||
| -rw-r--r-- | platforms/arm_atsam/gpio.h | 12 |
2 files changed, 34 insertions, 21 deletions
diff --git a/platforms/arm_atsam/bootloader.c b/platforms/arm_atsam/bootloaders/md_boot.c index 9015b00aab..fe07389487 100644 --- a/platforms/arm_atsam/bootloader.c +++ b/platforms/arm_atsam/bootloaders/md_boot.c @@ -15,13 +15,18 @@ */ #include "bootloader.h" + #include "samd51j18a.h" -#include "md_bootloader.h" -// Set watchdog timer to reset. Directs the bootloader to stay in programming mode. -void bootloader_jump(void) { #ifdef KEYBOARD_massdrop_ctrl - // CTRL keyboards released with bootloader version below must use RAM method. Otherwise use WDT method. +// WARNING: These are only for CTRL bootloader release "v2.18Jun 22 2018 17:28:08" for bootloader_jump support +extern uint32_t _eram; + +#define BOOTLOADER_MAGIC 0x3B9ACA00 +#define MAGIC_ADDR (uint32_t *)((intptr_t)(&_eram) - 4) + +// CTRL keyboards released with bootloader version below must use RAM method. Otherwise use WDT method. +void bootloader_jump(void) { uint8_t ver_ram_method[] = "v2.18Jun 22 2018 17:28:08"; // The version to match (NULL terminated by compiler) uint8_t *ver_check = ver_ram_method; // Pointer to version match string for traversal uint8_t *ver_rom = (uint8_t *)0x21A0; // Pointer to address in ROM where this specific bootloader version would exist @@ -34,24 +39,28 @@ void bootloader_jump(void) { if (!*ver_check) { // If check version pointer is NULL, all characters have matched *MAGIC_ADDR = BOOTLOADER_MAGIC; // Set magic number into RAM NVIC_SystemReset(); // Perform system reset - while (1) { - } // Won't get here + + while (1); // Won't get here } -#endif +} +#else + +// Set watchdog timer to reset. Directs the bootloader to stay in programming mode. +void bootloader_jump(void) { WDT->CTRLA.bit.ENABLE = 0; - while (WDT->SYNCBUSY.bit.ENABLE) { - } - while (WDT->CTRLA.bit.ENABLE) { - } + + while (WDT->SYNCBUSY.bit.ENABLE); + while (WDT->CTRLA.bit.ENABLE); + WDT->CONFIG.bit.WINDOW = 0; WDT->CONFIG.bit.PER = 0; WDT->EWCTRL.bit.EWOFFSET = 0; WDT->CTRLA.bit.ENABLE = 1; - while (WDT->SYNCBUSY.bit.ENABLE) { - } - while (!WDT->CTRLA.bit.ENABLE) { - } - while (1) { - } // Wait on timeout + + while (WDT->SYNCBUSY.bit.ENABLE); + while (!WDT->CTRLA.bit.ENABLE); + + while (1); // Wait on timeout } +#endif diff --git a/platforms/arm_atsam/gpio.h b/platforms/arm_atsam/gpio.h index 915ed0ef4f..a42aaff54d 100644 --- a/platforms/arm_atsam/gpio.h +++ b/platforms/arm_atsam/gpio.h @@ -22,9 +22,9 @@ typedef uint8_t pin_t; -#define SAMD_PORT(pin) ((pin & 0x20) >> 5) -#define SAMD_PIN(pin) (pin & 0x1f) -#define SAMD_PIN_MASK(pin) (1 << (pin & 0x1f)) +#define SAMD_PORT(pin) (((pin)&0x20) >> 5) +#define SAMD_PIN(pin) ((pin)&0x1f) +#define SAMD_PIN_MASK(pin) (1 << ((pin)&0x1f)) #define setPinInput(pin) \ do { \ @@ -48,12 +48,16 @@ typedef uint8_t pin_t; PORT->Group[SAMD_PORT(pin)].PINCFG[SAMD_PIN(pin)].bit.PULLEN = 1; \ } while (0) -#define setPinOutput(pin) \ +#define setPinOutputPushPull(pin) \ do { \ PORT->Group[SAMD_PORT(pin)].DIRSET.reg = SAMD_PIN_MASK(pin); \ PORT->Group[SAMD_PORT(pin)].OUTCLR.reg = SAMD_PIN_MASK(pin); \ } while (0) +#define setPinOutputOpenDrain(pin) _Static_assert(0, "arm_atsam platform does not implement an open-drain output") + +#define setPinOutput(pin) setPinOutputPushPull(pin) + #define writePinHigh(pin) \ do { \ PORT->Group[SAMD_PORT(pin)].OUTSET.reg = SAMD_PIN_MASK(pin); \ |