* 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
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.
+ */
+#ifdef CONFIG_CARL9170FW_RADIO_FUNCTIONS
+ if (fw.phy.frequency < 3000000)
+ set(AR9170_PWR_REG_PLL_ADDAC, 0x5163);
+ else
+ set(AR9170_PWR_REG_PLL_ADDAC, 0x5143);
+#else
+ set(AR9170_PWR_REG_PLL_ADDAC, 0x5163);
+#endif /* CONFIG_CARL9170FW_RADIO_FUNCTIONS */
+
+ fw.ticks_per_usec = GET_VAL(AR9170_PWR_PLL_ADDAC_DIV,
+ get(AR9170_PWR_REG_PLL_ADDAC));
+
+ set(AR9170_PWR_REG_CLOCK_SEL, (uint32_t) ((on ? 0x70 : 0x600) | clock_));
+
+ switch (clock_) {
+ case AHB_20_22MHZ:
+ fw.ticks_per_usec >>= 1;
+ case AHB_40MHZ_OSC:
+ case AHB_40_44MHZ:
+ fw.ticks_per_usec >>= 1;
+ case AHB_80_88MHZ:
+ break;
+ }
+}
+
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) &
#undef HANDLER
}
+static void tally_update(void)
+{
+ unsigned int boff, time, delta;
+
+ time = get_clock_counter();
+ if (fw.phy.state == CARL9170_PHY_ON) {
+ delta = (time - fw.tally_clock);
+
+ fw.tally.active += delta;
+
+ 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;
+ }
+
+ fw.tally_clock = time;
+ fw.counter++;
+}
+
static void __noreturn main_loop(void)
{
/* main loop */
handle_timer();
- fw.counter++;
+ tally_update();
}
}
/*
* 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) 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) {