Moved action to top level.

Removed old iterations of the project and moved the files from 02-usart
to the root directory since that's the sole place where the action is
and that subproject has outgrown its initial title.

1 files changed, 0 insertions, 96 deletions

diff --git a/02-usart/src/arch/stm32l4xxx/peripherals/irq.c b/02-usart/src/arch/stm32l4xxx/peripherals/irq.c
deleted file mode 100644
index 364b9a7..0000000
--- a/02-usart/src/arch/stm32l4xxx/peripherals/irq.c
+++ /dev/null
@@ -1,96 +0,0 @@
-#include "arch/stm32l4xxx/peripherals/irq.h"
-#include "arch/stm32l4xxx/peripherals/gpio.h"
-#include "arch/stm32l4xxx/peripherals/nvic.h"
-
-#include "arch.h"
-#include "kern/delay.h"
-#include "kern/gpio/gpio_manager.h"
-
-#define IRQ_RESERVED(n)
-#define IRQ(name, uname_, n) \
-  void WEAK name () { \
-    unhandled_isr(n); \
-  }
-#include "arch/stm32l4xxx/peripherals/isrs.inc"
-#undef IRQ_RESERVED
-#undef IRQ
-
-void isr_simple_pin_on()
-{
-  int ec;
-  gpio_pin_opts_t opts = DEFAULT_GPIO_OPTS_OUTPUT;
-  gpio_reserved_pin_t pin3 = reserve_gpio_pin(GPIO_PIN_PB3, &opts, &ec);
-
-  set_gpio_pin_high(pin3);
-}
-
-#define IRQ_RESERVED(n) 0,
-#define IRQ(name, uname_, n) name,
-const void* vectors[] __attribute__((section(".vectors"))) = {
-    (void*)0x2000c000, /* Top of stack at top of sram1. 48k */
-#include "arch/stm32l4xxx/peripherals/isrs.inc"
-};
-#undef IRQ_RESERVED
-#undef IRQ
-
-/* Encodes the provided number as a series of flashes on the on-board
- * LED. The flashes follow as such:
- *
- * Before the bits of the code are flashed, a rapid succession of 20 flashes
- * followed by a pause will occur indicating that the next 8 flashes indicate
- * the bits of the provided code.
- *
- * Eoch of the next eight flashes indicate either a 1 or 0 depending on the
- * length of flash. The first flash is the least-significant bit, the next the
- * second least, the third third least, etc.
- *
- * - A quick flash followed by a long pause indicates a 0 bit.
- * - A "long" flash followed by a equally long pause indicates a 1 bit.
- */
-void unhandled_isr(uint8_t number)
-{
-  int ec;
-  gpio_pin_opts_t opts = DEFAULT_GPIO_OPTS_OUTPUT;
-  gpio_reserved_pin_t pin3 = reserve_gpio_pin(GPIO_PIN_PB3, &opts, &ec);
-
-  for (;;) {
-    for (int i = 0; i < 20; ++ i) {
-       set_gpio_pin_high(pin3);
-       delay(1000000);
-       set_gpio_pin_low(pin3);
-       delay(1000000);
-    }
-    delay(50000000);
-
-    int n = number;
-    for (int i = 0; i < 8; ++ i) {
-      if (n & 1) {
-       // LSB is a 1
-       set_gpio_pin_high(pin3);
-       delay(15000000);
-       set_gpio_pin_low(pin3);
-       delay(15000000);
-      } else {
-       // LSB is a 0
-       set_gpio_pin_high(pin3);
-       delay(1000000);
-       set_gpio_pin_low(pin3);
-       delay(29000000);
-      }
-
-      n >>= 1;
-    }
-  }
-}
-
-void enable_interrupts(interrupt_set_t* interrupts)
-{
-  for (int i = 0; i < sizeof(NVIC.ise_r) / sizeof(uint32_t); ++ i)
-    NVIC.ise_r[i] = interrupts->irqs[i];
-}
-
-void disable_interrupts(interrupt_set_t* interrupts)
-{
-  for (int i = 0; i < sizeof(NVIC.ise_r) / sizeof(uint32_t); ++ i)
-    NVIC.ice_r[i] = interrupts->irqs[i];
-}