carl9170 firmware: set radar pattern and tx mode setup

[carl9170fw.git] / carlfw / src / main.c

diff --git a/carlfw/src/main.c b/carlfw/src/main.c
index 92b74a0a12a37316d930fccb3ecef19746940cbd..b5f26f9ee33e72764207166bf85ee336fa7ddcbf 100644 (file)
--- a/carlfw/src/main.c
+++ b/carlfw/src/main.c
@@ -31,6 +31,7 @@
 #include "wl.h"
 #include "rf.h"
 #include "usb.h"
+#include "radar.h"
 
 #define AR9170_WATCH_DOG_TIMER            0x100
 
@@ -54,10 +55,10 @@ void clock_set(enum cpu_clock_t clock_, bool on)
         * So watch out, if you need _stable_ timer interrupts.
         */
 #ifdef CONFIG_CARL9170FW_RADIO_FUNCTIONS
-        if (fw.phy.frequency < 3000000)
+       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, 0x5143);
 #else
        set(AR9170_PWR_REG_PLL_ADDAC, 0x5163);
 #endif /* CONFIG_CARL9170FW_RADIO_FUNCTIONS */
@@ -134,10 +135,6 @@ static void timer0_isr(void)
        gpio_timer();
 #endif /* CONFIG_CARL9170FW_GPIO_INTERRUPT */
 
-#ifdef CONFIG_CARL9170FW_RADIO_FUNCTIONS
-       tally_update();
-#endif /* CONFIG_CARL9170FW_RADIO_FUNCTIONS */
-
 #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 */
@@ -168,6 +165,59 @@ static void handle_timer(void)
 #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++;
+}
+
+#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)
 {
        /* main loop */
@@ -186,7 +236,9 @@ static void __noreturn main_loop(void)
 
                handle_timer();
 
-               fw.counter++;
+               tally_update();
+
+               radar_pattern_generator();
        }
 }
 
@@ -200,7 +252,7 @@ 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);