X-Git-Url: https://jxself.org/git/?a=blobdiff_plain;f=carlfw%2Fsrc%2Fmain.c;h=55acb44792e9fe776666d6bd218d2abfc037a4c5;hb=561a9e137c373ca302c20428dc9b0f4de66e27b3;hp=f62e5ee7b6ce612a1c786ebf4a049fe990e76c53;hpb=1386db71e21e2d9eacc21b0986f1f91fb441b519;p=carl9170fw.git

diff --git a/carlfw/src/main.c b/carlfw/src/main.c
index f62e5ee..55acb44 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();
@@ -46,6 +58,7 @@ static void init(void)
 	/* USB init */
 	usb_init();
 
+	/* initialize DMA memory */
 	memset(&dma_mem, 0, sizeof(dma_mem));
 
 	/* fill DMA rings */
@@ -84,7 +97,45 @@ static void handle_fw(void)
 		reboot();
 }
 
-static void __attribute__((noreturn)) main_loop(void)
+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 */
 	while (1) {
@@ -116,13 +167,10 @@ static void __attribute__((noreturn)) main_loop(void)
  * we put _start() there with the linker script carl9170.lds.
  */
 
-void __attribute__((noreturn)) start(void)
+void start(void)
 {
 	clock_set(true, AHB_40MHZ_OSC);
 
-	/* initialize firmware context and DMA memory */
-	memset(&fw, 0, sizeof(fw));
-
 	/* watchdog magic pattern check */
 	if ((get(AR9170_PWR_REG_WATCH_DOG_MAGIC) & 0xffff0000) == 0x12340000) {
 		/* watch dog warm start */