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--- development:sound:wm8960 [2017/04/12 00:10] – 바깥 편집 127.0.0.1
+++ development:sound:wm8960 [2020/09/25 10:12] (현재) – 바깥 편집 127.0.0.1
@@ 줄 3: / 줄 3: @@
 ==== resolve pop noise problem ====
-<code c>
+<sxh c>
 static void wm8960_work_func(struct work_struct *work)
 {
@@ 줄 9: / 줄 9: @@
     struct snd_soc_codec *codec = NULL;
     int flag = -1;
-	int status = SND_JACK_HEADPHONE;
+    int status = SND_JACK_HEADPHONE;
-	int jack_type = 0;
+    int jack_type = 0;
     pdata = container_of(work, struct wm8960_private_data, work);
@@ 줄 16: / 줄 16: @@
     flag = wm8960_detect_hp();
     if(pdata->detect_flag != flag) {
-		if(!use_antipop)
+        if(!use_antipop)
-		{
+        {
-			/* Enable anti pop mode */
+            /* Enable anti pop mode */
-			snd_soc_update_bits(codec, WM8960_APOP1,
+            snd_soc_update_bits(codec, WM8960_APOP1,
-					    WM8960_POBCTRL | WM8960_SOFT_ST |
+                        WM8960_POBCTRL | WM8960_SOFT_ST |
-					    WM8960_BUFDCOPEN,
+                        WM8960_BUFDCOPEN,
-					    WM8960_POBCTRL | WM8960_SOFT_ST |
+                        WM8960_POBCTRL | WM8960_SOFT_ST |
-					    WM8960_BUFDCOPEN);
+                        WM8960_BUFDCOPEN);
+            /* Enable VMID at 2*50k */
+            snd_soc_update_bits(codec, WM8960_POWER1,
+                        WM8960_VMID_MASK, 0x80);
-			/* Enable VMID at 2*50k */
+            /* Ramp */
-			snd_soc_update_bits(codec, WM8960_POWER1,
+            msleep(100);
-					    WM8960_VMID_MASK, 0x80);
-			/* Ramp */
+            /* Enable VREF */
-			msleep(100);
+            snd_soc_update_bits(codec, WM8960_POWER1,
+                        WM8960_VREF, WM8960_VREF);
-			/* Enable VREF */
+            msleep(100);
-			snd_soc_update_bits(codec, WM8960_POWER1,
-					    WM8960_VREF, WM8960_VREF);
-			msleep(100);
+        }
-		}
         if (flag == 1) {
 #ifdef CONFIG_V2_HDMI_AUDIO
             printk(KERN_INFO "wm8960 hp pluged\n");
             /* Speaker */
@@ 줄 55: / 줄 52: @@
             snd_soc_update_bits(codec, WM8960_ROUT1, 0x7f, 0x7f);
             /* DAC Mono Mix clear */
             snd_soc_update_bits(codec, WM8960_ADDCTL1, 1 << 4, 0);
             printk(" 1 === USYS_KKJ clear DAC Mono ===\n");
@@ 줄 62: / 줄 59: @@
             snd_soc_jack_report(&pdata->jack, status, SND_JACK_HEADSET);
 #else
-			snd_soc_update_bits(codec, WM8960_POWER1, 2, 2);
+            snd_soc_update_bits(codec, WM8960_POWER1, 2, 2);
-			msleep(100);
+            msleep(100);
-			jack_type = wm8960_detect_hp();
+            jack_type = wm8960_detect_hp();
-			if(jack_type == 1){
+            if(jack_type == 1){
-				printk("wm8960 3 ports hp pluged\n");
+                printk("wm8960 3 ports hp pluged\n");
-            	/* jack report */
+                /* jack report */
-            	snd_soc_jack_report(&pdata->jack, SND_JACK_HEADPHONE, SND_JACK_HEADPHONE);
+                snd_soc_jack_report(&pdata->jack, SND_JACK_HEADPHONE, SND_JACK_HEADPHONE);
-				switch_set_state(&pdata->sdev, 2);
+                switch_set_state(&pdata->sdev, 2);
-			}else{
+            }else{
-				printk("wm8960 4 ports hs pluged\n");
+                printk("wm8960 4 ports hs pluged\n");
-            	/* jack report */
+                /* jack report */
-            	snd_soc_jack_report(&pdata->jack, status, SND_JACK_HEADSET);
+                snd_soc_jack_report(&pdata->jack, status, SND_JACK_HEADSET);
-				switch_set_state(&pdata->sdev, 1);
+                switch_set_state(&pdata->sdev, 1);
-			}
+            }
 #endif
         } else {
@@ 줄 98: / 줄 95: @@
             snd_soc_update_bits(codec, WM8960_LOUT1, 0x70, 0);
             snd_soc_update_bits(codec, WM8960_ROUT1, 0x70, 0);
             /* DAC Mono Mix set */
             snd_soc_update_bits(codec, WM8960_ADDCTL1, 1 << 4, 1 << 4);
 #endif
-			switch_set_state(&pdata->sdev, 0);
+            switch_set_state(&pdata->sdev, 0);
 #endif
             /* jack report */
@@ 줄 111: / 줄 107: @@
         pdata->detect_flag = flag;
-		if(!use_antipop)
+        if(!use_antipop)
-		{
+        {
-			/* Disable VMID and VREF */
+            /* Disable VMID and VREF */
-			snd_soc_update_bits(codec, WM8960_POWER1,
+            snd_soc_update_bits(codec, WM8960_POWER1,
-					    WM8960_VREF | WM8960_VMID_MASK, 0);
+                        WM8960_VREF | WM8960_VMID_MASK, 0);
-			/* Disable HP discharge */
-			snd_soc_update_bits(codec, WM8960_APOP2,
-						WM8960_DISOP | WM8960_DRES_MASK,
-);
-			/* Disable anti-pop features */
-			snd_soc_update_bits(codec, WM8960_APOP1,
-						WM8960_POBCTRL | WM8960_SOFT_ST |
-						WM8960_BUFDCOPEN,
-						WM8960_POBCTRL | WM8960_SOFT_ST |
-						WM8960_BUFDCOPEN);
-			use_antipop = 1;
+            /* Disable HP discharge */
-		}
+            snd_soc_update_bits(codec, WM8960_APOP2,
-    }
+                        WM8960_DISOP | WM8960_DRES_MASK,
+);
+            /* Disable anti-pop features */
+            snd_soc_update_bits(codec, WM8960_APOP1,
+                        WM8960_POBCTRL | WM8960_SOFT_ST |
+                        WM8960_BUFDCOPEN,
+                        WM8960_POBCTRL | WM8960_SOFT_ST |
+                        WM8960_BUFDCOPEN);
+            use_antipop = 1;
+        }
+    }
 }
-</code>
+</sxh>