1 files changed, 0 insertions, 177 deletions
diff --git a/stm32/app/ot_phy_rx.c b/stm32/app/ot_phy_rx.c
deleted file mode 100644
index 9348d24..0000000
--- a/stm32/app/ot_phy_rx.c
+++ /dev/null
@@ -1,177 +0,0 @@
-#include "project.h"
-
-#define OT_THM_IN       GPIO6
-#define OT_THM_IN_PORT    GPIOB
-
-#define OT_BLR_IN       GPIO7
-#define OT_BLR_IN_PORT    GPIOB
-
-
-#define OT_RX_IRQ     NVIC_EXTI9_5_IRQ
-
-
-typedef struct rx_phy  {
-  uint32_t last_cycle;
-  int last_v;
-  unsigned half_bits;
-  unsigned data_bits;
-  int frame_error;
-  uint8_t data[10];
-  int parity;
-} RX_Phy;
-
-
-static RX_Phy p_thm, p_blr;
-
-
-static uint32_t
-cycle_diff (uint32_t a, uint32_t b)
-{
-  return b - a;
-}
-
-
-
-
-static void ot_phy_rx_bit (RX_Phy *p)
-{
-
-
-  if (p->half_bits & 1)
-    p->frame_error = 1;
-
-  if (!p->half_bits) {
-    if (!p->last_v)
-      p->frame_error = 1;
-
-    return;
-  }
-
-  if (p->data_bits < 32) {
-    if (p->last_v) p->data[p->data_bits >> 3] |= 0x80 >> (p->data_bits & 7);
-
-    p->parity ^= p->last_v;
-  } else if (p->data_bits == 32) {
-    if ((!p->last_v) || (p->parity))
-      p->frame_error = 1;
-
-    led_blink();
-
-    if (p == &p_thm)
-      ot_rx_thm (p->data, p->frame_error);
-    else
-      ot_rx_blr (p->data, p->frame_error);
-  }
-
-
-  p->data_bits++;
-
-}
-
-
-static void ot_phy_rx_worker (RX_Phy *p, int v)
-{
-  uint32_t now, diff;
-
-  if (v == p->last_v) return;
-
-
-  now = dwt_read_cycle_counter();
-  diff = cycle_diff (p->last_cycle, now);
-
-
-  if (diff < 10000) return;
-
-  if (diff < 50000) {
-    if (! (p->half_bits & 1)) ot_phy_rx_bit (p);
-
-    p->half_bits++;
-  } else if (diff < 85000) {
-    p->half_bits++;
-    ot_phy_rx_bit (p);
-    p->half_bits++;
-  } else {
-    p->parity = 0;
-    p->half_bits = 0;
-    p->frame_error = 0;
-    p->data_bits = 0;
-    memset (p->data, 0, sizeof (p->data));
-  }
-
-  p->last_cycle = now;
-  p->last_v = v;
-}
-
-
-
-void
-exti9_5_isr (void)
-{
-  int v;
-
-  if (EXTI_PR & OT_THM_IN) {
-    EXTI_PR = OT_THM_IN;
-    v = !GET (OT_THM_IN);
-
-#if 0
-
-    if (v)
-      CLEAR (OT_BLR_OUT);
-    else
-      SET (OT_BLR_OUT);
-
-#endif
-
-    ot_phy_rx_worker (&p_thm, v);
-
-
-  }
-
-  if (EXTI_PR & OT_BLR_IN) {
-    EXTI_PR = OT_BLR_IN;
-    v = !GET (OT_BLR_IN);
-
-#if 0
-
-    if (v)
-      CLEAR (OT_THM_OUT);
-    else
-      SET (OT_THM_OUT);
-
-#endif
-
-    ot_phy_rx_worker (&p_blr, v);
-  }
-
-  return;
-}
-
-
-void ot_phy_rx_tick (void)
-{
-}
-
-
-
-void ot_phy_rx_init (void)
-{
-  MAP_INPUT_PU (OT_THM_IN);
-  MAP_INPUT_PU (OT_BLR_IN);
-
-
-  exti_select_source (OT_THM_IN, OT_THM_IN_PORT);
-  exti_set_trigger (OT_THM_IN, EXTI_TRIGGER_BOTH);
-  exti_enable_request (OT_THM_IN);
-  exti_reset_request (OT_THM_IN);
-
-  exti_select_source (OT_BLR_IN, OT_BLR_IN_PORT);
-  exti_set_trigger (OT_BLR_IN, EXTI_TRIGGER_BOTH);
-  exti_enable_request (OT_BLR_IN);
-  exti_reset_request (OT_BLR_IN);
-
-  nvic_enable_irq (OT_RX_IRQ);
-
-}
-
-
-