#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.
- */
- if (fw.phy.frequency < 3000000)
- set(AR9170_PWR_REG_PLL_ADDAC, 0x5163);
- else
- set(AR9170_PWR_REG_PLL_ADDAC, 0x5143);
-
- 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;
- }
-
- timer_init(1, (fw.ticks_per_usec * 25) >> 1);
-
- INFO("SET CLOCK c:%d t:%d tt:%d f:%d\n", clock_, fw.ticks_per_usec, (fw.ticks_per_usec * 25) >> 1, fw.phy.frequency);
-}
-
static void init(void)
{
led_init();
reboot();
}
-static void timer0_isr(void)
+static void tally_update(void)
{
- wlan_timer();
+ unsigned int boff, time, delta;
-#ifdef CONFIG_CARL9170FW_GPIO_INTERRUPT
- gpio_timer();
-#endif /* CONFIG_CARL9170FW_GPIO_INTERRUPT */
+ 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;
+ }
-#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 */
+ fw.tally_clock = time;
+ fw.counter++;
}
-static void timer1_isr(void)
+#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++;
+ }
+ }
+ }
}
-
-static void handle_timer(void)
+#else
+static void radar_pattern_generator(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);
-
- HANDLER(intr, BIT(1), timer1_isr);
-
- if (intr)
- DBG("Unhandled Timer Event %x", (unsigned int) intr);
-
-#undef HANDLER
}
+#endif /* CONFIG_CARL9170FW_RADAR */
static void __noreturn main_loop(void)
{
handle_timer();
- fw.counter++;
+ tally_update();
+
+ radar_pattern_generator();
}
}
* 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);