X-Git-Url: https://jxself.org/git/?a=blobdiff_plain;f=carlfw%2Fsrc%2Fmain.c;h=50415fedbbb760e77ef29ec6fede2b9f1a907cb7;hb=c35adcdbad76fb1c0f657b14b8111493f9c8ed73;hp=574154bafd1faaba526feb007e3f3bbd3009d764;hpb=f47f2e5344e6a07531825af13337aee8fdd45c68;p=carl9170fw.git

diff --git a/carlfw/src/main.c b/carlfw/src/main.c
index 574154b..50415fe 100644
--- a/carlfw/src/main.c
+++ b/carlfw/src/main.c
@@ -29,35 +29,12 @@
 #include "printf.h"
 #include "gpio.h"
 #include "wl.h"
+#include "rf.h"
 #include "usb.h"
+#include "radar.h"
 
 #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));
-}
-
-void clock_set(enum cpu_clock_t _clock, bool on)
-{
-	/*
-	 * Word of Warning!
-	 * This setting does more than just mess with the CPU Clock.
-	 * So watch out, if you need _stable_ timer interrupts.
-	 */
-
-	fw.ticks_per_msec = GET_VAL(AR9170_PWR_PLL_ADDAC_DIV, get(AR9170_PWR_REG_PLL_ADDAC)) >> 1;
-
-	set(AR9170_PWR_REG_CLOCK_SEL, (uint32_t) ((on ? 0x70 : 0x600) | _clock));
-}
-
 static void init(void)
 {
 	led_init();
@@ -106,43 +83,61 @@ static void handle_fw(void)
 		reboot();
 }
 
-static void timer0_isr(void)
+static void tally_update(void)
 {
-	wlan_timer();
+	unsigned int time;
 
-#ifdef CONFIG_CARL9170FW_GPIO_INTERRUPT
-	gpio_timer();
-#endif /* CONFIG_CARL9170FW_GPIO_INTERRUPT */
+	time = get_clock_counter();
+#ifdef CONFIG_CARL9170FW_RADIO_FUNCTIONS
+	if (fw.phy.state == CARL9170_PHY_ON) {
+		unsigned int boff, delta;
 
-#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);
+		delta = (time - fw.tally_clock);
 
-	/* ACK timer interrupt */
-	set(AR9170_TIMER_REG_INTERRUPT, intr);
+		fw.tally.active += delta;
 
-#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);
+		boff = get(AR9170_MAC_REG_BACKOFF_STATUS);
+		if (boff & AR9170_MAC_BACKOFF_TX_PE)
+			fw.tally.tx_time += delta;
+		if (boff & AR9170_MAC_BACKOFF_CCA)
+			fw.tally.cca += delta;
+	}
+#endif /* CONFIG_CARL9170FW_RADIO_FUNCTIONS */
+	fw.tally_clock = time;
+	fw.counter++;
+}
 
-#undef HANDLER
+#ifdef CONFIG_CARL9170FW_RADAR
+static void radar_pattern_generator(void)
+{
+	if (fw.phy.state == CARL9170_PHY_ON) {
+		if (fw.wlan.soft_radar == NO_RADAR ||
+		    fw.wlan.soft_radar >= __CARL9170FW_NUM_RADARS)
+			return;
+
+		const struct radar_info *radar = &radars[fw.wlan.soft_radar];
+		if (radar->pulses >= fw.wlan.pattern_index) {
+			fw.wlan.pattern_index = 0;
+		}
+
+		if (radar->pulses > fw.wlan.pattern_index) {
+			const struct radar_info_pattern *pattern = &radar->pattern[fw.wlan.pattern_index];
+			if (is_after_usecs(fw.wlan.radar_last, pattern->pulse_interval)) {
+				fw.wlan.radar_last = get_clock_counter();
+				set(0x1C3BC0, pattern->pulse_pattern);
+				set(0x1C3BBC, pattern->pulse_mode);
+				udelay(pattern->pulse_width);
+				set(0x1C3BBC, ~pattern->pulse_mode);
+				fw.wlan.pattern_index++;
+			}
+		}
+	}
 }
+#else
+static void radar_pattern_generator(void)
+{
+}
+#endif /* CONFIG_CARL9170FW_RADAR */
 
 static void __noreturn main_loop(void)
 {
@@ -162,7 +157,9 @@ static void __noreturn main_loop(void)
 
 		handle_timer();
 
-		fw.counter++;
+		tally_update();
+
+		radar_pattern_generator();
 	}
 }
 
@@ -176,7 +173,7 @@ static void __noreturn main_loop(void)
  * we put _start() there with the linker script carl9170.lds.
  */
 
-void __section(boot) start(void)
+void __section(boot) __noreturn __visible start(void)
 {
 	clock_set(AHB_40MHZ_OSC, true);