X-Git-Url: https://jxself.org/git/?a=blobdiff_plain;f=carlfw%2Fsrc%2Fmain.c;h=50415fedbbb760e77ef29ec6fede2b9f1a907cb7;hb=c35adcdbad76fb1c0f657b14b8111493f9c8ed73;hp=55acb44792e9fe776666d6bd218d2abfc037a4c5;hpb=561a9e137c373ca302c20428dc9b0f4de66e27b3;p=carl9170fw.git

diff --git a/carlfw/src/main.c b/carlfw/src/main.c
index 55acb44..50415fe 100644
--- a/carlfw/src/main.c
+++ b/carlfw/src/main.c
@@ -6,7 +6,7 @@
  * Copyright (c) 2000-2005 ZyDAS Technology Corporation
  * Copyright (c) 2007-2009 Atheros Communications, Inc.
  * Copyright	2009	Johannes Berg <johannes@sipsolutions.net>
- * Copyright 2009, 2010 Christian Lamparter <chunkeey@googlemail.com>
+ * Copyright 2009-2011	Christian Lamparter <chunkeey@googlemail.com>
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -29,21 +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));
-}
-
 static void init(void)
 {
 	led_init();
@@ -70,14 +61,9 @@ static void init(void)
 	orl(AR9170_MAC_REG_AFTER_PNP, 1);
 
 	/* Init watch dog control flag */
-#ifdef CONFIG_CARL9170FW_WATCHDOG
 	fw.watchdog_enable = 1;
 
 	set(AR9170_TIMER_REG_WATCH_DOG, AR9170_WATCH_DOG_TIMER);
-#else
-	fw.watchdog_enable = 0;
-	set(AR9170_TIMER_REG_WATCH_DOG, 0xffff);
-#endif /* CONFIG_CARL9170FW_WATCHDOG */
 
 #ifdef CONFIG_CARL9170FW_GPIO_INTERRUPT
 	fw.cached_gpio_state.gpio = get(AR9170_GPIO_REG_PORT_DATA) &
@@ -97,43 +83,61 @@ 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)
+static void tally_update(void)
 {
-	uint32_t intr;
-
-	intr = get(AR9170_TIMER_REG_INTERRUPT);
+	unsigned int time;
 
-	/* ACK timer interrupt */
-	set(AR9170_TIMER_REG_INTERRUPT, intr);
+	time = get_clock_counter();
+#ifdef CONFIG_CARL9170FW_RADIO_FUNCTIONS
+	if (fw.phy.state == CARL9170_PHY_ON) {
+		unsigned int boff, delta;
 
-#define HANDLER(intr, flag, func)			\
-	do {						\
-		if ((intr & flag) != 0) {		\
-			intr &= ~flag;			\
-			func();				\
-		}					\
-	} while (0)
+		delta = (time - fw.tally_clock);
 
-	HANDLER(intr, BIT(0), timer0_isr);
+		fw.tally.active += delta;
 
-	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)
 {
@@ -153,23 +157,25 @@ static void __noreturn main_loop(void)
 
 		handle_timer();
 
-		fw.counter++;
+		tally_update();
+
+		radar_pattern_generator();
 	}
 }
 
 /*
  * 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.
  * we put _start() there with the linker script carl9170.lds.
  */
 
-void start(void)
+void __section(boot) __noreturn __visible start(void)
 {
-	clock_set(true, AHB_40MHZ_OSC);
+	clock_set(AHB_40MHZ_OSC, true);
 
 	/* watchdog magic pattern check */
 	if ((get(AR9170_PWR_REG_WATCH_DOG_MAGIC) & 0xffff0000) == 0x12340000) {