hosted: Make sure we don't call mixer/etc controls when we're not ready

(Might fix the rocker crash-on-shutdown bug)

Change-Id: Id375fc5053adef18d7ec812bdba36ee002e706ef

firmware/drivers/audio/erosqlinux_codec.c

@@ -37,8 +37,7 @@
 
 #include "logf.h"
 
-static int fd_hw;
+static int fd_hw = -1;
-static int inited = 0;
 
 static long int vol_l_hw = 255;
 static long int vol_r_hw = 255;
@@ -54,6 +53,7 @@ static void hw_open(void)
 static void hw_close(void)
 {
     close(fd_hw);
+    fd_hw = -1;
 }
 
 static int muted = -1;
@@ -62,7 +62,7 @@ void audiohw_mute(int mute)
 {
     logf("mute %d", mute);
 
-    if (muted == mute)
+    if (fd_hw < 0 || muted == mute)
        return;
 
     muted = mute;
@@ -84,7 +84,7 @@ int erosq_get_outputs(void) {
 
     int status = 0;
 
-    if (!inited) return ps;
+    if (fd_hw < 0) return ps;
 
     const char * const sysfs_lo_switch = "/sys/class/switch/lineout/state";
     const char * const sysfs_hs_switch = "/sys/class/switch/headset/state";
@@ -102,7 +102,7 @@ int erosq_get_outputs(void) {
 
 void erosq_set_output(int ps)
 {
-    if (!inited || muted) return;
+    if (fd_hw < 0 || muted) return;
 
     if (last_ps != ps)
     {
@@ -119,9 +119,7 @@ void audiohw_preinit(void)
     logf("hw preinit");
     alsa_controls_init();
     hw_open();
-//    audiohw_mute(true);  /* Start muted to avoid the POP */
+    audiohw_mute(false);  /* No need to stay muted */
-    audiohw_mute(false);
-    inited = 1;
 }
 
 void audiohw_postinit(void)
@@ -132,7 +130,6 @@ void audiohw_postinit(void)
 void audiohw_close(void)
 {
     logf("hw close");
-    inited = 0;
     hw_close();
     alsa_controls_close();
 }

firmware/drivers/audio/fiiolinux_codec.c

@@ -32,8 +32,8 @@
 #include "pcm-alsa.h"
 #include <sys/ioctl.h>
 
-static int fd_hw;
+static int fd_hw = -1;
-static int ak_hw;
+static int ak_hw = -1;
 
 static      int vol_sw[2] = {0};
 static long int vol_hw[2] = {0};
@@ -61,8 +61,8 @@ static void hw_close(void)
         panicf("Call cmd AK4376_POWER_OFF fail");
     }
     close(ak_hw);
-
     close(fd_hw);
+    ak_hw = fd_hw = -1;
 }
 
 void audiohw_preinit(void)
@@ -91,10 +91,15 @@ void audiohw_set_frequency(int fsel)
     (void)fsel;
 }
 
+static int muted = -1;
+
 void audiohw_set_volume(int vol_l, int vol_r)
 {
     int vol[2];
 
+    if (fd_hw < 0)
+       return;
+
     vol[0] = vol_l / 20;
     vol[1] = vol_r / 20;
 
@@ -121,15 +126,20 @@ void audiohw_set_volume(int vol_l, int vol_r)
         }
     }
 
+    if (!muted) {
        alsa_controls_set_ints("DACL Playback Volume", 1, &vol_hw[0]);
        alsa_controls_set_ints("DACR Playback Volume", 1, &vol_hw[1]);
        pcm_alsa_set_digital_volume(vol_sw[0], vol_sw[1]);
     }
+}
 
 void audiohw_mute(int mute)
 {
     long int vol0 = 0;
 
+    if (fd_hw < 0 || muted == mute)
+       return;
+
     if(mute)
     {
         alsa_controls_set_ints("DACL Playback Volume", 1, &vol0);
@@ -146,6 +156,9 @@ void audiohw_mute(int mute)
 
 void audiohw_set_filter_roll_off(int value)
 {
+    if (fd_hw < 0)
+       return;
+
     /* 0 = Sharp;
        1 = Slow;
        2 = Short Sharp

firmware/drivers/audio/rocker_codec.c

@@ -27,7 +27,7 @@
 #include "panic.h"
 #include "alsa-controls.h"
 
-static int fd_hw;
+static int fd_hw = -1;
 
 static long int vol_l_hw = 255;
 static long int vol_r_hw = 255;
@@ -44,11 +44,13 @@ static void hw_open(void)
 static void hw_close(void)
 {
     close(fd_hw);
+    fd_hw = -1;
+    muted = -1;
 }
 
 void audiohw_mute(int mute)
 {
-    if (muted == mute)
+    if (fd_hw < 0 || muted == mute)
        return;
 
     muted = mute;
@@ -92,6 +94,9 @@ void audiohw_set_volume(int vol_l, int vol_r)
     vol_l_hw = -vol_l/5;
     vol_r_hw = -vol_r/5;
 
+    if (fd_hw < 0)
+       return;
+
     alsa_controls_set_ints("Left Playback Volume", 1, &vol_l_hw);
     alsa_controls_set_ints("Right Playback Volume", 1, &vol_r_hw);
 }

firmware/drivers/audio/xduoolinux_codec.c

@@ -36,8 +36,7 @@
 
 #include "logf.h"
 
-static int fd_hw;
+static int fd_hw = -1;
-static int inited = 0;
 
 static long int vol_l_hw = 255;
 static long int vol_r_hw = 255;
@@ -53,6 +52,7 @@ static void hw_open(void)
 static void hw_close(void)
 {
     close(fd_hw);
+    fd_hw = -1;
 }
 
 static int muted = -1;
@@ -61,7 +61,7 @@ void audiohw_mute(int mute)
 {
     logf("mute %d", mute);
 
-    if (muted == mute)
+    if (fd_hw < 0 || muted == mute)
        return;
 
     muted = mute;
@@ -83,7 +83,7 @@ int xduoo_get_outputs(void){
 
     int status = 0;
 
-    if (!inited) return ps;
+    if (fd_hw < 0) return ps;
 
     const char * const sysfs_lo_switch = "/sys/class/switch/lineout/state";
     const char * const sysfs_hs_switch = "/sys/class/switch/headset/state";
@@ -109,7 +109,7 @@ int xduoo_get_outputs(void){
 
 void xduoo_set_output(int ps)
 {
-    if (!inited || muted) return;
+    if (fd_hw < 0 || muted) return;
 
     if (last_ps != ps)
     {
@@ -127,7 +127,6 @@ void audiohw_preinit(void)
     alsa_controls_init();
     hw_open();
     audiohw_mute(true);  /* Start muted to avoid the POP */
-    inited = 1;
 //    const char * const codec_pmdown = "/sys/devices/platform/ingenic-x3ii.0/x3ii-ak4490-i2s/pmdown_time";  // in ms, defaults 5000
 }
 
@@ -139,7 +138,6 @@ void audiohw_postinit(void)
 void audiohw_close(void)
 {
     logf("hw close");
-    inited = 0;
     hw_close();
     alsa_controls_close();
 }
@@ -166,6 +164,9 @@ void audiohw_set_volume(int vol_l, int vol_r)
         r = -vol_r/5;
     }
 
+    if (fd_hw < 0)
+       return;
+
     alsa_controls_set_ints("Left Playback Volume", 1, &l);
     alsa_controls_set_ints("Right Playback Volume", 1, &r);
 }