X-Git-Url: https://jxself.org/git/?a=blobdiff_plain;f=carlfw%2Fsrc%2Fmain.c;h=b9239c8e4969b5fcf5ca3dcc437886d8a613bb47;hb=39be7dc384e0dd45dc36b4b517fd9fae874b06f0;hp=9500c0d26720bcb4d43f409e790048669788ae01;hpb=0eb34487ee8e70ecb8e4ee2ed5092b2788eb7f26;p=carl9170fw.git

diff --git a/carlfw/src/main.c b/carlfw/src/main.c
index 9500c0d..b9239c8 100644
--- a/carlfw/src/main.c
+++ b/carlfw/src/main.c
@@ -32,6 +32,18 @@
 
 #define AR9170_WATCH_DOG_TIMER		   0x100
 
+static void timer_init(const unsigned int timer, const unsigned int interval)
+{
+	/* Set timer to periodic mode */
+	orl(AR9170_TIMER_REG_CONTROL, BIT(timer));
+
+	/* Set time interval */
+	set(AR9170_TIMER_REG_TIMER0 + (timer << 2), interval - 1);
+
+	/* Clear timer interrupt flag */
+	orl(AR9170_TIMER_REG_INTERRUPT, BIT(timer));
+}
+
 static void init(void)
 {
 	led_init();
@@ -85,6 +97,44 @@ static void handle_fw(void)
 		reboot();
 }
 
+static void timer0_isr(void)
+{
+	wlan_timer();
+
+#ifdef CONFIG_CARL9170FW_GPIO_INTERRUPT
+	gpio_timer();
+#endif /* CONFIG_CARL9170FW_GPIO_INTERRUPT */
+
+#ifdef CONFIG_CARL9170FW_DEBUG_LED_HEARTBEAT
+	set(AR9170_GPIO_REG_PORT_DATA, get(AR9170_GPIO_REG_PORT_DATA) ^ 1);
+#endif /* CONFIG_CARL9170FW_DEBUG_LED_HEARTBEAT */
+}
+
+static void handle_timer(void)
+{
+	uint32_t intr;
+
+	intr = get(AR9170_TIMER_REG_INTERRUPT);
+
+	/* ACK timer interrupt */
+	set(AR9170_TIMER_REG_INTERRUPT, intr);
+
+#define HANDLER(intr, flag, func)			\
+	do {						\
+		if ((intr & flag) != 0) {		\
+			intr &= ~flag;			\
+			func();				\
+		}					\
+	} while (0)
+
+	HANDLER(intr, BIT(0), timer0_isr);
+
+	if (intr)
+		DBG("Unhandled Timer Event %x", (unsigned int) intr);
+
+#undef HANDLER
+}
+
 static void __noreturn main_loop(void)
 {
 	/* main loop */
@@ -109,8 +159,8 @@ static void __noreturn main_loop(void)
 
 /*
  * The bootcode will work with the device driver to load the firmware
- * onto the device's Program SRAM. The Program SRAM has a size of 32 KB
- * and also contains the stack, which grows down from 0x208000.
+ * onto the device's Program SRAM. The Program SRAM has a size of 16 KB
+ * and also contains the stack, which grows down from 0x204000.
  *
  * The Program SRAM starts at address 0x200000 on the device.
  * The firmware entry point (0x200004) is located in boot.S.