add circuitpython code

1 files changed, 130 insertions, 0 deletions

diff --git a/circuitpython/lib/tinyusb/hw/bsp/f1c100s/f1c100s.c b/circuitpython/lib/tinyusb/hw/bsp/f1c100s/f1c100s.c
new file mode 100644
index 0000000..d45072e
--- /dev/null
+++ b/circuitpython/lib/tinyusb/hw/bsp/f1c100s/f1c100s.c
@@ -0,0 +1,130 @@
+/* 
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2019 Ha Thach (tinyusb.org)
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ *
+ * This file is part of the TinyUSB stack.
+ */
+
+#include <stdint.h>
+#include <malloc.h>
+#include <irqflags.h>
+#include <f1c100s-irq.h>
+#include "bsp/board.h"
+#include "board.h"
+
+extern void sys_uart_putc(char c);
+
+//--------------------------------------------------------------------+
+// Board porting API
+//--------------------------------------------------------------------+
+
+static void timer_init(void);
+
+void board_init(void)
+{
+  arch_local_irq_disable();
+	do_init_mem_pool();
+  f1c100s_intc_init();
+  timer_init();
+  printf("Timer INIT done\n");
+  arch_local_irq_enable();
+}
+
+// No LED, no button
+void board_led_write(bool state)
+{
+
+}
+
+uint32_t board_button_read(void)
+{
+  return 0;
+}
+
+int board_uart_read(uint8_t* buf, int len)
+{
+  return 0;
+}
+
+int board_uart_write(void const * buf, int len)
+{
+  int txsize = len;
+  while (txsize--) {
+    sys_uart_putc(*(uint8_t const*)buf);
+    buf++;
+  }
+  return len;
+}
+
+#if CFG_TUSB_OS  == OPT_OS_NONE
+volatile uint32_t system_ticks = 0;
+
+uint32_t board_millis(void)
+{
+  return system_ticks;
+}
+
+static void timer_handler(void)
+{
+  volatile uint32_t *temp_addr = (uint32_t *)(0x01C20C00 + 0x04);
+
+  /* clear timer */
+  *temp_addr |= 0x01;
+
+  system_ticks++;
+}
+
+static void timer_init(void) {
+  uint32_t temp;
+  volatile uint32_t *temp_addr;
+
+  /* reload value */
+  temp = 12000000 / 1000;
+  temp_addr = (uint32_t *)(0x01C20C00 + 0x14);
+  *temp_addr = temp;
+
+  /* continuous | /2 | 24Mhz |  reload*/
+  temp = (0x00 << 7) | (0x01 << 4) | (0x01 << 2) | (0x00 << 1);
+  temp_addr = (uint32_t *)(0x01C20C00 + 0x10);
+  *temp_addr &= 0xffffff00;
+  *temp_addr |= temp;
+
+  /* open timer irq */
+  temp = 0x01 << 0;
+  temp_addr = (uint32_t *)(0x01C20C00);
+  *temp_addr |= temp;
+
+  /* set init value */
+  temp_addr = (uint32_t *)(0x01C20C00 + 0x18);
+  *temp_addr = 0;
+
+  /* begin run timer */
+  temp = 0x01 << 0;
+  temp_addr = (uint32_t *)(0x01C20C00 + 0x10);
+  *temp_addr |= temp;
+
+  f1c100s_intc_set_isr(F1C100S_IRQ_TIMER0, timer_handler);
+  f1c100s_intc_enable_irq(F1C100S_IRQ_TIMER0);
+}
+#else 
+static void timer_init(void) { }
+#endif