Move radio power handling from apps/ to drivers.

Remove direct calls to tuner_power(...) in apps/ and let
the driver manage tuner power with the RADIO_SLEEP setting.

Change-Id: I37cd0472e60db5d666dae1b9fe4755dd65c03edd
Reviewed-on: http://gerrit.rockbox.org/84
Reviewed-by: Amaury Pouly <amaury.pouly@gmail.com>

apps/radio/radio.c

@@ -192,9 +192,6 @@ void radio_start(void)
     /* clear flag before any yielding */
     radio_status &= ~FMRADIO_START_PAUSED;
 
-    if(radio_status == FMRADIO_OFF)
-        tuner_power(true);
-
     curr_freq = global_status.last_frequency * fmr->freq_step + fmr->freq_min;
 
     tuner_set(RADIO_SLEEP, 0); /* wake up the tuner */
@@ -246,9 +243,6 @@ void radio_pause(void)
     }
 
     tuner_set(RADIO_MUTE, 1);
-    /* For si4700: 2==this is really 'pause'. other tuners treat it
-     * like 'bool'. */
-    tuner_set(RADIO_SLEEP, 2);
 
     radio_status = FMRADIO_PAUSED;
 } /* radio_pause */
@@ -258,7 +252,6 @@ static void radio_off(void)
     tuner_set(RADIO_MUTE, 1);
     tuner_set(RADIO_SLEEP, 1); /* low power mode, if available */
     radio_status = FMRADIO_OFF;
-    tuner_power(false); /* status update, power off if avail. */
 }
 
 void radio_stop(void)

firmware/drivers/tuner/ipod_remote_tuner.c

@@ -31,8 +31,6 @@
 #include "settings.h"
 #include "power.h"
 
-static bool powered = false;
-
 static unsigned char tuner_param = 0x00, old_tuner_param = 0xFF;
 /* temp var for tests to avoid looping execution in submenus settings*/
 static int mono_mode = -1, old_region = -1;
@@ -150,7 +148,6 @@ static void rmt_tuner_scan(int param)
     iap_send_pkt(data1, sizeof(data1));
 }
 
-#if 0   /* function is not used */
 static void rmt_tuner_mute(int value)
 {
     /* mute flag off (play) */
@@ -162,7 +159,6 @@ static void rmt_tuner_mute(int value)
     }
     iap_send_pkt(data, sizeof(data));
 }
-#endif
 
 static void rmt_tuner_region(int region)
 {
@@ -362,7 +358,7 @@ int ipod_rmt_tuner_set(int setting, int value)
         case RADIO_MUTE:
         {
             /* mute flag sent to accessory */
-            /* rmt_tuner_mute(value); */
+            rmt_tuner_mute(value);
             break;
         }
 
@@ -453,10 +449,3 @@ char* ipod_get_rds_info(int setting)
     }
     return text;
 }
-
-bool tuner_power(bool status)
-{
-    bool oldstatus = powered;
-    powered = status;
-    return oldstatus;
-}

firmware/drivers/tuner/lv24020lp.c

@@ -740,6 +740,8 @@ static int sd_setcmp(int regval)
 
 static void set_sleep(bool sleep)
 {
+    if (sleep)
+        tuner_power(false);
     if (sleep || tuner_awake())
         return;
 
@@ -747,6 +749,7 @@ static void set_sleep(bool sleep)
         (TUNER_PRESENT | TUNER_POWERED))
         return;
 
+    tuner_power(true);
     enable_afc(false);
 
     /* 2. Calibrate the IF frequency at 110 kHz: */

firmware/drivers/tuner/rda5802.c

@@ -177,9 +177,12 @@ static void rda5802_sleep(int snooze)
         rda5802_write_clear(POWERCFG, POWERCFG_ENABLE);
     }
     else {
+        tuner_power(true);
         rda5802_write_set(POWERCFG, POWERCFG_ENABLE);
     }
     rda5802_write_cache();
+    if(snooze)
+        tuner_power(false);
 }
 
 bool rda5802_detect(void)

firmware/drivers/tuner/s1a0903x01.c

@@ -47,12 +47,16 @@ int s1a0903x01_set(int setting, int value)
     {
         case RADIO_SLEEP:
             if (!value)
-            {   /* wakeup: just unit */
+            {
+                tuner_power(true);
+                /* wakeup: just unit */
                 fm_in1 = DEFAULT_IN1;
                 fm_in2 = DEFAULT_IN2;
                 fmradio_set(1, fm_in1);
                 fmradio_set(2, fm_in2);
             }
+            else
+                tuner_power(false);
             /* else we have no sleep mode? */
             break;
 

firmware/drivers/tuner/si4700.c

@@ -304,9 +304,20 @@ static void si4700_sleep(int snooze)
                          POWERCFG_DISABLE | POWERCFG_ENABLE);
         /* Bits self-clear once placed in powerdown. */
         cache[POWERCFG] &= ~(POWERCFG_DISABLE | POWERCFG_ENABLE);
+
+        tuner_power(false);
     }
     else
     {
+        tuner_power(true);
+        /* read all registers */
+        si4700_read(16);
+#ifdef SI4700_USE_INTERNAL_OSCILLATOR
+        /* Enable the internal oscillator
+          (Si4702-16 needs this register to be initialised to 0x100) */
+        si4700_write_set(TEST1, TEST1_XOSCEN | 0x100);
+        sleep(HZ/2);
+#endif
         /** power up **/
         /* ENABLE high, DISABLE low */
         si4700_write_masked(POWERCFG, POWERCFG_ENABLE,
@@ -354,26 +365,9 @@ bool si4700_detect(void)
 
 void si4700_init(void)
 {
+    mutex_init(&fmr_mutex);
     /* check device id */
     if (si4700_detect()) {
-        mutex_init(&fmr_mutex);
-        
-        tuner_power(true);
-
-        /* read all registers */
-        si4700_read(16);
-        si4700_sleep(0);
-
-#ifdef SI4700_USE_INTERNAL_OSCILLATOR
-        /* Enable the internal oscillator
-          (Si4702-16 needs this register to be initialised to 0x100) */
-        si4700_write_set(TEST1, TEST1_XOSCEN | 0x100);
-        sleep(HZ/2);
-#endif
-
-        si4700_sleep(1);
-        tuner_power(false);
-
 #ifdef HAVE_RDS_CAP
         si4700_rds_init();
 #endif
@@ -445,6 +439,9 @@ int si4700_set(int setting, int value)
 {
     int val = 1;
 
+    if(!tuner_powered() && setting != RADIO_SLEEP)
+        return -1;
+
     mutex_lock(&fmr_mutex);
 
     switch(setting)
@@ -499,12 +496,15 @@ int si4700_get(int setting)
 {
     int val = -1; /* default for unsupported query */
 
+    if(!tuner_powered() && setting != RADIO_PRESENT)
+        return -1;
+
     mutex_lock(&fmr_mutex);
 
     switch(setting)
     {
         case RADIO_PRESENT:
-            val = tuner_present ? 1 : 0;
+            val = tuner_present;
             break;
 
         case RADIO_TUNED:

firmware/drivers/tuner/tea5760uk.c

@@ -61,8 +61,10 @@ int tea5760_set(int setting, int value)
             if (value) {
                 /* sleep / standby mode */
                 tea5760_set_clear(3, (1<<6), 0);
+                tuner_power(false);
             }
             else {
+                tuner_power(true);
                 /* active mode */
                 tea5760_set_clear(3, (1<<6), 1);
                 /* disable hard mute */

firmware/drivers/tuner/tea5767.c

@@ -106,7 +106,11 @@ int tea5767_set(int setting, int value)
             return -1;
     }
 
+    if(setting == RADIO_SLEEP && !value)
+        tuner_power(true); /* wakeup */
     fmradio_i2c_write(I2C_ADR, write_bytes, sizeof(write_bytes));
+    if(setting == RADIO_SLEEP && value)
+        tuner_power(false); /* sleep */
     return 1;
 }