trace: split out trace events for hw/arm/ directory

[mirror_qemu.git] / hw / timer / imx_gpt.c

diff --git a/hw/timer/imx_gpt.c b/hw/timer/imx_gpt.c
index 7257f4201afdde9f7638ae587b744481f6c54eb6..3c2f01ab99160a2568b326b9160086762517dc00 100644 (file)
--- a/hw/timer/imx_gpt.c
+++ b/hw/timer/imx_gpt.c
@@ -12,9 +12,11 @@
  *
  */
 
+#include "qemu/osdep.h"
 #include "hw/timer/imx_gpt.h"
 #include "hw/misc/imx_ccm.h"
 #include "qemu/main-loop.h"
+#include "qemu/log.h"
 
 #ifndef DEBUG_IMX_GPT
 #define DEBUG_IMX_GPT 0
@@ -80,27 +82,27 @@ static const VMStateDescription vmstate_imx_timer_gpt = {
 };
 
 static const IMXClk imx_gpt_clocks[] = {
-    NOCLK,    /* 000 No clock source */
-    IPG,      /* 001 ipg_clk, 532MHz*/
-    IPG,      /* 010 ipg_clk_highfreq */
-    NOCLK,    /* 011 not defined */
-    CLK_32k,  /* 100 ipg_clk_32k */
-    NOCLK,    /* 101 not defined */
-    NOCLK,    /* 110 not defined */
-    NOCLK,    /* 111 not defined */
+    CLK_NONE,      /* 000 No clock source */
+    CLK_IPG,       /* 001 ipg_clk, 532MHz*/
+    CLK_IPG_HIGH,  /* 010 ipg_clk_highfreq */
+    CLK_NONE,      /* 011 not defined */
+    CLK_32k,       /* 100 ipg_clk_32k */
+    CLK_NONE,      /* 101 not defined */
+    CLK_NONE,      /* 110 not defined */
+    CLK_NONE,      /* 111 not defined */
 };
 
 static void imx_gpt_set_freq(IMXGPTState *s)
 {
     uint32_t clksrc = extract32(s->cr, GPT_CR_CLKSRC_SHIFT, 3);
-    uint32_t freq = imx_clock_frequency(s->ccm, imx_gpt_clocks[clksrc])
-                    / (1 + s->pr);
-    s->freq = freq;
 
-    DPRINTF("Setting clksrc %d to frequency %d\n", clksrc, freq);
+    s->freq = imx_ccm_get_clock_frequency(s->ccm,
+                                imx_gpt_clocks[clksrc]) / (1 + s->pr);
 
-    if (freq) {
-        ptimer_set_freq(s->timer, freq);
+    DPRINTF("Setting clksrc %d to frequency %d\n", clksrc, s->freq);
+
+    if (s->freq) {
+        ptimer_set_freq(s->timer, s->freq);
     }
 }
 
@@ -133,7 +135,7 @@ static inline uint32_t imx_gpt_find_limit(uint32_t count, uint32_t reg,
 static void imx_gpt_compute_next_timeout(IMXGPTState *s, bool event)
 {
     uint32_t timeout = GPT_TIMER_MAX;
-    uint32_t count = 0;
+    uint32_t count;
     long long limit;
 
     if (!(s->cr & GPT_CR_EN)) {
@@ -141,20 +143,23 @@ static void imx_gpt_compute_next_timeout(IMXGPTState *s, bool event)
         return;
     }
 
-    if (event) {
-        /* This is a timer event  */
+    /* update the count */
+    count = imx_gpt_update_count(s);
 
-        if ((s->cr & GPT_CR_FRR)  && (s->next_timeout != GPT_TIMER_MAX)) {
-            /*
-             * if we are in free running mode and we have not reached
-             * the GPT_TIMER_MAX limit, then update the count
+    if (event) {
+        /*
+         * This is an event (the ptimer reached 0 and stopped), and the
+         * timer counter is now equal to s->next_timeout.
+         */
+        if (!(s->cr & GPT_CR_FRR) && (count == s->ocr1)) {
+            /* We are in restart mode and we crossed the compare channel 1
+             * value. We need to reset the counter to 0.
              */
-            count = imx_gpt_update_count(s);
+            count = s->cnt = s->next_timeout = 0;
+        } else if (count == GPT_TIMER_MAX) {
+            /* We reached GPT_TIMER_MAX so we need to rollover */
+            count = s->cnt = s->next_timeout = 0;
         }
-    } else {
-        /* not a timer event, then just update the count */
-
-        count = imx_gpt_update_count(s);
     }
 
     /* now, find the next timeout related to count */