* 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
#include "printf.h"
#include "gpio.h"
#include "wl.h"
+#include "rf.h"
+#include "usb.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();
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) &
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 */
-}
+ delta = (time - fw.tally_clock);
-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)
+ fw.tally.active += delta;
- HANDLER(intr, BIT(0), timer0_isr);
-
- if (intr)
- DBG("Unhandled Timer Event %x", (unsigned int) intr);
-
-#undef HANDLER
+ 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++;
}
static void __noreturn main_loop(void)
handle_timer();
- fw.counter++;
+ tally_update();
}
}
* 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) {