Do some planned radio interface cleanup since adding in the LV24020LP.

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@13880 a1c6a512-1295-4272-9138-f99709370657

19 files changed, 491 insertions, 275 deletions

diff --git a/firmware/SOURCES b/firmware/SOURCES
index 7e26ca0bc4..2db8e9e568 100644
--- a/firmware/SOURCES
+++ b/firmware/SOURCES
@@ -151,17 +151,18 @@ drivers/rtc/rtc_as3514.c
 /* Tuner */
 #if CONFIG_TUNER
 #ifndef SIMULATOR
+tuner.c
+#if (CONFIG_TUNER & LV24020LP)
+drivers/tuner/lv24020lp.c
+#endif /* (CONFIG_TUNER & LV24020LP) */
 #if (CONFIG_TUNER & S1A0903X01)
 drivers/fmradio.c
-tuner_samsung.c
+drivers/tuner/s1a0903x01.c
 #endif /* (CONFIG_TUNER & S1A0903X01) */
 #if (CONFIG_TUNER & TEA5767)
 drivers/fmradio_i2c.c
-tuner_philips.c
+drivers/tuner/tea5767.c
 #endif /* (CONFIG_TUNER & TEA5767) */
-#if (CONFIG_TUNER & LV24020LP)
-tuner_sanyo.c
-#endif /* (CONFIG_TUNER & LV24020LP) */
 #endif /*SIMULATOR */
 #endif /* CONFIG_TUNER */
 
diff --git a/firmware/drivers/power.c b/firmware/drivers/power.c
index eb69fcec27..50117dd321 100644
--- a/firmware/drivers/power.c
+++ b/firmware/drivers/power.c
@@ -37,12 +37,12 @@ bool charger_enabled;
 
 static bool powered = false;
 
-bool radio_powered(void)
+bool tuner_powered(void)
 {
     return powered;
 }
 
-bool radio_power(bool status)
+bool tuner_power(bool status)
 {
     bool old_status = powered;
     powered = status;
diff --git a/firmware/tuner_sanyo.c b/firmware/drivers/tuner/lv24020lp.c
index 6e732975b6..9ec68f9a27 100644
--- a/firmware/tuner_sanyo.c
+++ b/firmware/drivers/tuner/lv24020lp.c
@@ -25,11 +25,9 @@
 #include "kernel.h"
 #include "tuner.h" /* tuner abstraction interface */
 #include "fmradio.h" /* physical interface driver */
-#include "mpeg.h"
 #include "sound.h"
 #include "pp5024.h"
 #include "system.h"
-#include "as3514.h"
 
 #ifndef BOOTLOADER
 
@@ -234,7 +232,7 @@ static int fd_log = -1;
 #define TUNER_PRESENCE_CHECKED  (1 << 3)
 static unsigned tuner_status = 0;
 
-static unsigned char sanyo_regs[0x1c];
+static unsigned char lv24020lp_regs[0x1c];
 
 static const int sw_osc_low  = 10;  /* 30; */
 static const int sw_osc_high = 240; /* 200; */
@@ -253,7 +251,7 @@ static inline bool tuner_awake(void)
 }
 
 /* send a byte to the tuner - expects write mode to be current */
-static void tuner_sanyo_send_byte(unsigned int byte)
+static void lv24020lp_send_byte(unsigned int byte)
 {
     int i;
 
@@ -274,7 +272,7 @@ static void tuner_sanyo_send_byte(unsigned int byte)
 }
 
 /* end a write cycle on the tuner */
-static void tuner_sanyo_end_write(void)
+static void lv24020lp_end_write(void)
 {
     /* switch back to read mode */
     GPIOH_OUTPUT_EN &= ~(1 << FM_DATA_PIN);
@@ -282,7 +280,7 @@ static void tuner_sanyo_end_write(void)
 }
 
 /* prepare a write cycle on the tuner */
-static unsigned int tuner_sanyo_begin_write(unsigned int address)
+static unsigned int lv24020lp_begin_write(unsigned int address)
 {
     /* Get register's block, translate address */
     unsigned int blk = (address >= BLK2_START) ?
@@ -297,29 +295,29 @@ static unsigned int tuner_sanyo_begin_write(unsigned int address)
         udelay(FM_CLK_DELAY);
 
         /* current block == register block? */
-        if (blk == sanyo_regs[BLK_SEL])
+        if (blk == lv24020lp_regs[BLK_SEL])
             return address;
 
         /* switch block */
-        sanyo_regs[BLK_SEL] = blk;
+        lv24020lp_regs[BLK_SEL] = blk;
 
         /* data first */
-        tuner_sanyo_send_byte(blk);
+        lv24020lp_send_byte(blk);
         /* then address */
-        tuner_sanyo_send_byte(BLK_SEL);
+        lv24020lp_send_byte(BLK_SEL);
 
-        tuner_sanyo_end_write();
+        lv24020lp_end_write();
 
         udelay(FM_CLK_DELAY);
     }
 }
 
 /* write a byte to a tuner register */
-static void tuner_sanyo_write(unsigned int address, unsigned int data)
+static void lv24020lp_write(unsigned int address, unsigned int data)
 {
     /* shadow logical values but do logical=>physical remappings on some
        registers' data. */
-    sanyo_regs[address] = data;
+    lv24020lp_regs[address] = data;
 
     switch (address)
     {
@@ -340,39 +338,39 @@ static void tuner_sanyo_write(unsigned int address, unsigned int data)
         break;
     }
 
-    address = tuner_sanyo_begin_write(address);
+    address = lv24020lp_begin_write(address);
 
     /* data first */
-    tuner_sanyo_send_byte(data);
+    lv24020lp_send_byte(data);
     /* then address */
-    tuner_sanyo_send_byte(address);
+    lv24020lp_send_byte(address);
 
-    tuner_sanyo_end_write();
+    lv24020lp_end_write();
 }
 
 /* helpers to set/clear register bits */
-static void tuner_sanyo_write_or(unsigned int address, unsigned int bits)
+static void lv24020lp_write_or(unsigned int address, unsigned int bits)
 {
-    tuner_sanyo_write(address, sanyo_regs[address] | bits);
+    lv24020lp_write(address, lv24020lp_regs[address] | bits);
 }
 
-static void tuner_sanyo_write_and(unsigned int address, unsigned int bits)
+static void lv24020lp_write_and(unsigned int address, unsigned int bits)
 {
-    tuner_sanyo_write(address, sanyo_regs[address] & bits);
+    lv24020lp_write(address, lv24020lp_regs[address] & bits);
 }
 
 /* read a byte from a tuner register */
-static unsigned int tuner_sanyo_read(unsigned int address)
+static unsigned int lv24020lp_read(unsigned int address)
 {
     int i;
     unsigned int toread;
 
-    address = tuner_sanyo_begin_write(address);
+    address = lv24020lp_begin_write(address);
 
     /* address */
-    tuner_sanyo_send_byte(address);
+    lv24020lp_send_byte(address);
 
-    tuner_sanyo_end_write();
+    lv24020lp_end_write();
 
     /* data */
     toread = 0;
@@ -392,7 +390,7 @@ static unsigned int tuner_sanyo_read(unsigned int address)
 /* enables auto frequency centering */
 static void enable_afc(bool enabled)
 {
-    unsigned int radio_ctrl1 = sanyo_regs[RADIO_CTRL1];
+    unsigned int radio_ctrl1 = lv24020lp_regs[RADIO_CTRL1];
 
     if (enabled)
     {
@@ -405,7 +403,7 @@ static void enable_afc(bool enabled)
         radio_ctrl1 &= ~EN_AFC;
     }
 
-    tuner_sanyo_write(RADIO_CTRL1, radio_ctrl1);
+    lv24020lp_write(RADIO_CTRL1, radio_ctrl1);
 }
 
 static int calculate_coef(unsigned fkhz)
@@ -439,25 +437,25 @@ static int tuner_measure(unsigned char type, int scale, int duration)
         return 0;
 
     /* enable measuring */
-    tuner_sanyo_write_or(MSRC_SEL, type);
-    tuner_sanyo_write_and(CNT_CTRL, ~CNT_SEL);
-    tuner_sanyo_write_or(RADIO_CTRL1, EN_MEAS);
+    lv24020lp_write_or(MSRC_SEL, type);
+    lv24020lp_write_and(CNT_CTRL, ~CNT_SEL);
+    lv24020lp_write_or(RADIO_CTRL1, EN_MEAS);
 
     /* reset counter */
-    tuner_sanyo_write_or(CNT_CTRL, CNT1_CLR);
-    tuner_sanyo_write_and(CNT_CTRL, ~CNT1_CLR);
+    lv24020lp_write_or(CNT_CTRL, CNT1_CLR);
+    lv24020lp_write_and(CNT_CTRL, ~CNT1_CLR);
 
     /* start counter, delay for specified time and stop it */
-    tuner_sanyo_write_or(CNT_CTRL, CNT_EN);
+    lv24020lp_write_or(CNT_CTRL, CNT_EN);
     udelay(duration*1000 - 16);
-    tuner_sanyo_write_and(CNT_CTRL, ~CNT_EN);
+    lv24020lp_write_and(CNT_CTRL, ~CNT_EN);
 
     /* read tick count */
-    finval = (tuner_sanyo_read(CNT_H) << 8) | tuner_sanyo_read(CNT_L);
+    finval = (lv24020lp_read(CNT_H) << 8) | lv24020lp_read(CNT_L);
 
     /* restore measure mode */
-    tuner_sanyo_write_and(RADIO_CTRL1, ~EN_MEAS);
-    tuner_sanyo_write_and(MSRC_SEL, ~type);
+    lv24020lp_write_and(RADIO_CTRL1, ~EN_MEAS);
+    lv24020lp_write_and(MSRC_SEL, ~type);
 
     /* convert value */
     if (type == MSS_FM)
@@ -469,7 +467,7 @@ static int tuner_measure(unsigned char type, int scale, int duration)
 }
 
 /* set the FM oscillator frequency */
-static void sanyo_set_frequency(int freq)
+static void set_frequency(int freq)
 {
     int coef, cap_value, osc_value;
     int f1, f2, x1, x2;
@@ -494,7 +492,7 @@ static void sanyo_set_frequency(int freq)
                     coef_00, coef_01);
 
     osc_value = sw_osc_low;
-    tuner_sanyo_write(FM_OSC, osc_value); 
+    lv24020lp_write(FM_OSC, osc_value); 
 
     /* Just in case - don't go into infinite loop */
     for (count = 0; count < 30; count++)
@@ -505,7 +503,7 @@ static void sanyo_set_frequency(int freq)
                                 coef_10, coef_11);
         int coef_fcur, cap_new, coef_cor, range;
          
-        tuner_sanyo_write(FM_CAP, cap_value);
+        lv24020lp_write(FM_CAP, cap_value);
 
         range     = y1 - y0;
         f1        = tuner_measure(MSS_FM, 1, 16);
@@ -554,7 +552,7 @@ static void sanyo_set_frequency(int freq)
     {
         int x2_new;
 
-        tuner_sanyo_write(FM_OSC, x2);
+        lv24020lp_write(FM_OSC, x2);
         f2 = tuner_measure(MSS_FM, 1, 16);
 
         if (abs(f2 - freq) <= 16)
@@ -632,9 +630,9 @@ static void fine_step_tune(int (*setcmp)(int regval), int regval, int step)
 
 static int if_setcmp(int regval)
 {
-    tuner_sanyo_write(IF_OSC, regval);
-    tuner_sanyo_write(IF_CENTER, regval);
-    tuner_sanyo_write(IF_BW, 65*regval/100);
+    lv24020lp_write(IF_OSC, regval);
+    lv24020lp_write(IF_CENTER, regval);
+    lv24020lp_write(IF_BW, 65*regval/100);
 
     if_set = tuner_measure(MSS_IF, 1000, 32);
 
@@ -649,7 +647,7 @@ static int if_setcmp(int regval)
 
 static int sd_setcmp(int regval)
 {
-    tuner_sanyo_write(SD_OSC, regval);
+    lv24020lp_write(SD_OSC, regval);
 
     sd_set = tuner_measure(MSS_SD, 1000, 32);
 
@@ -659,7 +657,7 @@ static int sd_setcmp(int regval)
     return sd_set < 38300 ? -1 : 1;
 }
 
-static void sanyo_sleep(bool sleep)
+static void set_sleep(bool sleep)
 {
     if (sleep || tuner_awake())
         return;
@@ -673,41 +671,41 @@ static void sanyo_sleep(bool sleep)
     enable_afc(false);
 
     /* 2. Calibrate the IF frequency at 110 kHz: */
-    tuner_sanyo_write_and(RADIO_CTRL2, ~IF_PM_L);
+    lv24020lp_write_and(RADIO_CTRL2, ~IF_PM_L);
     fine_step_tune(if_setcmp, 0x80, 8);
-    tuner_sanyo_write_or(RADIO_CTRL2, IF_PM_L);
+    lv24020lp_write_or(RADIO_CTRL2, IF_PM_L);
 
     /* 3. Calibrate the stereo decoder clock at 38.3 kHz: */
-    tuner_sanyo_write_or(STEREO_CTRL, SD_PM);
+    lv24020lp_write_or(STEREO_CTRL, SD_PM);
     fine_step_tune(sd_setcmp, 0x80, 8);
-    tuner_sanyo_write_and(STEREO_CTRL, ~SD_PM);
+    lv24020lp_write_and(STEREO_CTRL, ~SD_PM);
 
     /* calculate FM tuning coefficients */
-    tuner_sanyo_write(FM_CAP, sw_cap_low);
-    tuner_sanyo_write(FM_OSC, sw_osc_low);
+    lv24020lp_write(FM_CAP, sw_cap_low);
+    lv24020lp_write(FM_OSC, sw_osc_low);
     coef_00 = calculate_coef(tuner_measure(MSS_FM, 1, 64));
 
-    tuner_sanyo_write(FM_CAP, sw_cap_high);
+    lv24020lp_write(FM_CAP, sw_cap_high);
     coef_01 = calculate_coef(tuner_measure(MSS_FM, 1, 64));
 
-    tuner_sanyo_write(FM_CAP, sw_cap_low);
-    tuner_sanyo_write(FM_OSC, sw_osc_high);
+    lv24020lp_write(FM_CAP, sw_cap_low);
+    lv24020lp_write(FM_OSC, sw_osc_high);
     coef_10 = calculate_coef(tuner_measure(MSS_FM, 1, 64));
 
-    tuner_sanyo_write(FM_CAP, sw_cap_high);
+    lv24020lp_write(FM_CAP, sw_cap_high);
     coef_11 = calculate_coef(tuner_measure(MSS_FM, 1, 64));
 
     /* set various audio level settings */
-    tuner_sanyo_write(AUDIO_CTRL1, TONE_LVL_SET(0) | VOL_LVL_SET(0));
-    tuner_sanyo_write_or(RADIO_CTRL2, AGCSP);
-    tuner_sanyo_write_or(RADIO_CTRL3, VOLSH);
-    tuner_sanyo_write(STEREO_CTRL, FMCS_SET(7) | AUTOSSR);
-    tuner_sanyo_write(PW_SCTRL, SS_CTRL_SET(3) | SM_CTRL_SET(1) |
-                      PW_RAD);
+    lv24020lp_write(AUDIO_CTRL1, TONE_LVL_SET(0) | VOL_LVL_SET(0));
+    lv24020lp_write_or(RADIO_CTRL2, AGCSP);
+    lv24020lp_write_or(RADIO_CTRL3, VOLSH);
+    lv24020lp_write(STEREO_CTRL, FMCS_SET(7) | AUTOSSR);
+    lv24020lp_write(PW_SCTRL, SS_CTRL_SET(3) | SM_CTRL_SET(1) |
+                    PW_RAD);
 }
 
 /** Public interfaces **/
-bool radio_power(bool status)
+void lv24020lp_power(bool status)
 {
     static const unsigned char tuner_defaults[][2] =
     {
@@ -733,38 +731,13 @@ bool radio_power(bool status)
     };
 
     unsigned i;
-    bool powered = tuner_status & TUNER_POWERED;
-
-    if (status == powered)
-        return powered;
 
     if (status)
     {
-        /* init mystery amplification device */
-        outl(inl(0x70000084) | 0x1, 0x70000084);
-        udelay(5);
-
-        /* When power up, host should initialize the 3-wire bus in host read
-           mode: */
-
-        /* 1. Set direction of the DATA-line to input-mode. */
-        GPIOH_OUTPUT_EN &= ~(1 << FM_DATA_PIN); 
-        GPIOH_ENABLE |= (1 << FM_DATA_PIN); 
-
-        /* 2. Drive NR_W low */
-        GPIOH_OUTPUT_VAL &= ~(1 << FM_NRW_PIN); 
-        GPIOH_OUTPUT_EN |= (1 << FM_NRW_PIN); 
-        GPIOH_ENABLE |= (1 << FM_NRW_PIN); 
-
-        /* 3. Drive CLOCK high */
-        GPIOH_OUTPUT_VAL |= (1 << FM_CLOCK_PIN); 
-        GPIOH_OUTPUT_EN |= (1 << FM_CLOCK_PIN); 
-        GPIOH_ENABLE |= (1 << FM_CLOCK_PIN);
-
-        tuner_status |= TUNER_POWERED;
+        tuner_status |= TUNER_POWERED | TUNER_PRESENCE_CHECKED;
 
         /* if tuner is present, CHIP ID is 0x09 */
-        if (tuner_sanyo_read(CHIP_ID) == 0x09)
+        if (lv24020lp_read(CHIP_ID) == 0x09)
         {
             tuner_status |= TUNER_PRESENT;
 
@@ -772,9 +745,9 @@ bool radio_power(bool status)
                follows: */
 
             /* 1. Write default values to the registers: */
-            sanyo_regs[BLK_SEL] = 0; /* Force a switch on the first */
+            lv24020lp_regs[BLK_SEL] = 0; /* Force a switch on the first */
             for (i = 0; i < ARRAYLEN(tuner_defaults); i++)
-                tuner_sanyo_write(tuner_defaults[i][0], tuner_defaults[i][1]);
+                lv24020lp_write(tuner_defaults[i][0], tuner_defaults[i][1]);
 
             /* Complete the startup calibration if the tuner is woken */
             udelay(100000);
@@ -782,76 +755,55 @@ bool radio_power(bool status)
     }
     else
     {
-        /* Power off and set all as inputs */
+        /* Power off */
         if (tuner_status & TUNER_PRESENT)
-            tuner_sanyo_write_and(PW_SCTRL, ~PW_RAD);
-
-        GPIOH_OUTPUT_EN &= ~((1 << FM_DATA_PIN) | (1 << FM_NRW_PIN) |
-                             (1 << FM_CLOCK_PIN));
-        GPIOH_ENABLE &= ~((1 << FM_DATA_PIN) | (1 << FM_NRW_PIN) |
-                          (1 << FM_CLOCK_PIN)); 
-
-        outl(inl(0x70000084) & ~0x1, 0x70000084);
+            lv24020lp_write_and(PW_SCTRL, ~PW_RAD);
 
         tuner_status &= ~(TUNER_POWERED | TUNER_AWAKE);
     }
-
-    return powered;
-}
-
-bool radio_powered(void)
-{
-    return (tuner_status & TUNER_POWERED) != 0;
 }
 
-int sanyo_set(int setting, int value)
+int lv24020lp_set(int setting, int value)
 {
     int val = 1;
 
     switch(setting)
     {
     case RADIO_SLEEP:
-        sanyo_sleep(value);
+        set_sleep(value);
         break;
 
     case RADIO_FREQUENCY:
-        sanyo_set_frequency(value);
+        set_frequency(value);
         break;
 
     case RADIO_SCAN_FREQUENCY:
         /* TODO: really implement this */
-        sanyo_set_frequency(value);
-        val = sanyo_get(RADIO_TUNED);
+        set_frequency(value);
+        val = lv24020lp_get(RADIO_TUNED);
         break;
 
     case RADIO_MUTE:
         if (value)
-            tuner_sanyo_write_and(RADIO_CTRL3, ~AMUTE_L);
+            lv24020lp_write_and(RADIO_CTRL3, ~AMUTE_L);
         else
-            tuner_sanyo_write_or(RADIO_CTRL3, AMUTE_L);
+            lv24020lp_write_or(RADIO_CTRL3, AMUTE_L);
         break;
 
     case RADIO_REGION:
-        switch (value)
-        {
-        case REGION_EUROPE:
-        case REGION_JAPAN:
-        case REGION_KOREA:
-            tuner_sanyo_write_and(AUDIO_CTRL2, ~DEEMP);
-            break;
-        case REGION_US_CANADA:
-            tuner_sanyo_write_or(AUDIO_CTRL2, DEEMP);
-            break;
-        default:
-            val = -1;
-        }
+    {
+        if (lv24020lp_region_data[value])
+            lv24020lp_write_or(AUDIO_CTRL2, DEEMP);
+        else
+            lv24020lp_write_and(AUDIO_CTRL2, ~DEEMP);
         break;
+        }
 
     case RADIO_FORCE_MONO:
         if (value)
-            tuner_sanyo_write_or(STEREO_CTRL, ST_M);
+            lv24020lp_write_or(STEREO_CTRL, ST_M);
         else
-            tuner_sanyo_write_and(STEREO_CTRL, ~ST_M);
+            lv24020lp_write_and(STEREO_CTRL, ~ST_M);
         break;
 
     default:
@@ -861,45 +813,55 @@ int sanyo_set(int setting, int value)
     return val;
 }
 
-int sanyo_get(int setting)
+int lv24020lp_get(int setting)
 {
     int val = -1;
 
     switch(setting)
     {
-    case RADIO_ALL:
-        return tuner_sanyo_read(CTRL_STAT);
-
     case RADIO_TUNED:
         /* TODO: really implement this */
-        val = RSS_FS(tuner_sanyo_read(RADIO_STAT)) < 0x1f;
+        val = RSS_FS(lv24020lp_read(RADIO_STAT)) < 0x1f;
         break;
 
     case RADIO_STEREO:
-        val = (tuner_sanyo_read(RADIO_STAT) & RSS_MS) != 0;
+        val = (lv24020lp_read(RADIO_STAT) & RSS_MS) != 0;
         break;
 
     case RADIO_PRESENT:
+    {
+        bool fmstatus = true;
+
+        if (!(tuner_status & TUNER_PRESENCE_CHECKED))
+            fmstatus = tuner_power(true);
+
         val = (tuner_status & TUNER_PRESENT) != 0;
+
+        if (!fmstatus)
+            tuner_power(false);
         break;
+        }
 
     /* tuner-specific debug info */
-    case RADIO_REG_STAT:
-        return tuner_sanyo_read(RADIO_STAT);
+    case LV24020LP_CTRL_STAT:
+        return lv24020lp_read(CTRL_STAT);
+
+    case LV24020LP_REG_STAT:
+        return lv24020lp_read(RADIO_STAT);
 
-    case RADIO_MSS_FM:
+    case LV24020LP_MSS_FM:
         return tuner_measure(MSS_FM, 1, 16);
 
-    case RADIO_MSS_IF:
+    case LV24020LP_MSS_IF:
         return tuner_measure(MSS_IF, 1000, 16);
 
-    case RADIO_MSS_SD:
+    case LV24020LP_MSS_SD:
         return tuner_measure(MSS_SD, 1000, 16);
 
-    case RADIO_IF_SET:
+    case LV24020LP_IF_SET:
         return if_set;
 
-    case RADIO_SD_SET:
+    case LV24020LP_SD_SET:
         return sd_set;
     }
 
diff --git a/firmware/tuner_samsung.c b/firmware/drivers/tuner/s1a0903x01.c
index 82934d7160..cdeba2b3b4 100644
--- a/firmware/tuner_samsung.c
+++ b/firmware/drivers/tuner/s1a0903x01.c
@@ -33,9 +33,10 @@
 
 static int fm_in1;
 static int fm_in2;
+static int fm_present = -1; /* unknown */
 
 /* tuner abstraction layer: set something to the tuner */
-int samsung_set(int setting, int value)
+int s1a0903x01_set(int setting, int value)
 {
     int val = 1;
 
@@ -95,12 +96,13 @@ int samsung_set(int setting, int value)
 
         case RADIO_SCAN_FREQUENCY:
             /* Tune in and delay */
-            samsung_set(RADIO_FREQUENCY, value);
+            s1a0903x01_set(RADIO_FREQUENCY, value);
             sleep(1);
             /* Start IF measurement */
-            samsung_set(RADIO_IF_MEASUREMENT, 1);
+            fm_in1 |= 4;
+            fmradio_set(1, fm_in1);
             sleep(1);
-            val = samsung_get(RADIO_TUNED);
+            val = s1a0903x01_get(RADIO_TUNED);
             break;
 
         case RADIO_MUTE:
@@ -108,20 +110,23 @@ int samsung_set(int setting, int value)
             fmradio_set(1, fm_in1);
             break;
 
-        case RADIO_IF_MEASUREMENT:
+        case RADIO_FORCE_MONO:
+            fm_in2 = (fm_in2 & 0xfffffffb) | (value?0:4);
+            fmradio_set(2, fm_in2);
+            break;
+        /* NOTE: These were only zeroed when starting the tuner from OFF
+                 but the default values already set them to 0. */
+#if 0
+        case S1A0903X01_IF_MEASUREMENT:
             fm_in1 = (fm_in1 & 0xfffffffb) | (value?4:0);
             fmradio_set(1, fm_in1);
             break;
 
-        case RADIO_SENSITIVITY:
+        case S1A0903X01_SENSITIVITY:
             fm_in2 = (fm_in2 & 0xffff9fff) | ((value & 3) << 13);
             fmradio_set(2, fm_in2);
             break;
-
-        case RADIO_FORCE_MONO:
-            fm_in2 = (fm_in2 & 0xfffffffb) | (value?0:4);
-            fmradio_set(2, fm_in2);
-            break;
+#endif
         default:
             val = -1;
     }
@@ -130,14 +135,27 @@ int samsung_set(int setting, int value)
 }
 
 /* tuner abstraction layer: read something from the tuner */
-int samsung_get(int setting)
+int s1a0903x01_get(int setting)
 {
     int val = -1;
     switch(setting)
     {
         case RADIO_PRESENT:
-            fmradio_set(2, 0x140885); /* 5kHz, 7.2MHz crystal, test mode 1 */
-            val = (fmradio_read(0) == 0x140885);
+            if (fm_present == -1)
+            {
+#ifdef HAVE_TUNER_PWR_CTRL
+                bool fmstatus = tuner_power(true);
+#endif
+                /* 5kHz, 7.2MHz crystal, test mode 1 */
+                fmradio_set(2, 0x140885);
+                fm_present = (fmradio_read(0) == 0x140885);
+#ifdef HAVE_TUNER_PWR_CTRL
+                if (!fmstatus)
+                    tuner_power(false);
+#endif
+            }
+
+            val = fm_present;
             break;
 
         case RADIO_TUNED:
@@ -148,6 +166,7 @@ int samsung_get(int setting)
         case RADIO_STEREO:
             val = fmradio_read(3);
             val = ((val & 0x100000) ? true : false);
+            break;
     }
     return val;
 }
diff --git a/firmware/tuner_philips.c b/firmware/drivers/tuner/tea5767.c
index 8520fdbae9..da7cdfb65a 100644
--- a/firmware/tuner_philips.c
+++ b/firmware/drivers/tuner/tea5767.c
@@ -23,13 +23,21 @@
 #include <stdlib.h>
 #include "kernel.h"
 #include "tuner.h" /* tuner abstraction interface */
+#include "fmradio.h"
 #include "fmradio_i2c.h" /* physical interface driver */
 
 #define I2C_ADR 0xC0
 static unsigned char write_bytes[5] = { 0x00, 0x00, 0x00, 0x00, 0x00 };
 
+static void tea5767_set_clear(int byte, unsigned char bits, int set)
+{
+    write_bytes[byte] &= ~bits;
+    if (set)
+        write_bytes[byte] |= bits;
+}
+
 /* tuner abstraction layer: set something to the tuner */
-int philips_set(int setting, int value)
+int tea5767_set(int setting, int value)
 {
     switch(setting)
     {
@@ -44,7 +52,7 @@ int philips_set(int setting, int value)
             write_bytes[3] |= (1<<3) | (1<<1); 
 #endif
             /* sleep / standby mode */
-            write_bytes[3] &= ~(1<<6) | (value ? (1<<6) : 0);
+            tea5767_set_clear(3, (1<<6), value);
             break;
 
         case RADIO_FREQUENCY:
@@ -56,38 +64,41 @@ int philips_set(int setting, int value)
                 n = (4 * (value - 225000)) / 50000;
 #endif
                 write_bytes[0] = (write_bytes[0] & 0xC0) | (n >> 8);
-                write_bytes[1] = n & 0xFF;
+                write_bytes[1] = n;
             }
             break;
 
         case RADIO_SCAN_FREQUENCY:
-            philips_set(RADIO_FREQUENCY, value);
+            tea5767_set(RADIO_FREQUENCY, value);
             sleep(HZ/30);
-            return philips_get(RADIO_TUNED);
+            return tea5767_get(RADIO_TUNED);
 
         case RADIO_MUTE:
-            write_bytes[0] = (write_bytes[0] & 0x7F) | (value ? 0x80 : 0);
+            tea5767_set_clear(0, 0x80, value);
             break;
 
-        case RADIO_FORCE_MONO:
-            write_bytes[2] = (write_bytes[2] & 0xF7) | (value ? 0x08 : 0);
-            break;
+        case RADIO_REGION:
+        {
+            const struct tea5767_region_data *rd =
+                &tea5767_region_data[value];
 
-        case RADIO_SET_DEEMPHASIS:
-            write_bytes[4] = (write_bytes[4] & ~(1<<6)) | (value ? (1<<6) : 0);
+            tea5767_set_clear(4, (1<<6), rd->deemphasis);
+            tea5767_set_clear(3, (1<<5), rd->band);
+            break;
+            }
+        case RADIO_FORCE_MONO:
+            tea5767_set_clear(2, 0x08, value);
             break;
-
-        case RADIO_SET_BAND:
-            write_bytes[3] = (write_bytes[3] & ~(1<<5)) | (value ? (1<<5) : 0);
         default:
             return -1;
     }
+
     fmradio_i2c_write(I2C_ADR, write_bytes, sizeof(write_bytes));
     return 1;
 }
 
 /* tuner abstraction layer: read something from the tuner */
-int philips_get(int setting)
+int tea5767_get(int setting)
 {
     unsigned char read_bytes[5];
     int val = -1; /* default for unsupported query */
@@ -113,10 +124,11 @@ int philips_get(int setting)
             val = read_bytes[2] >> 7;
             break;
     }
+
     return val;
 }
 
-void philips_dbg_info(struct philips_dbg_info *info)
+void tea5767_dbg_info(struct tea5767_dbg_info *info)
 {
     fmradio_i2c_read(I2C_ADR, info->read_regs, 5);
     memcpy(info->write_regs, write_bytes, 5);
diff --git a/firmware/export/config.h b/firmware/export/config.h
index 86e27d0031..056b9857bc 100644
--- a/firmware/export/config.h
+++ b/firmware/export/config.h
@@ -245,6 +245,11 @@
 #define CONFIG_REMOTE_DEFAULT_ICON_WIDTH 6
 #endif
 
+#if (CONFIG_TUNER & (CONFIG_TUNER - 1)) != 0
+/* Multiple possible tuners */
+#define CONFIG_TUNER_MULTI
+#endif
+
 /* Enable the directory cache and tagcache in RAM if we have
  * plenty of RAM. Both features can be enabled independently. */
 #if ((defined(MEMORYSIZE) && (MEMORYSIZE > 8)) || MEM > 8) && \
diff --git a/firmware/export/hwcompat.h b/firmware/export/hwcompat.h
index bffb76e3ef..bebca68a6c 100644
--- a/firmware/export/hwcompat.h
+++ b/firmware/export/hwcompat.h
@@ -46,4 +46,11 @@
 bool is_new_player(void);
 #endif
 
+#ifdef CONFIG_TUNER_MULTI
+static inline int tuner_detect_type(void)
+{
+    return (HW_MASK & TUNER_MODEL) ? TEA5767 : S1A0903X01;
+}
+#endif
+
 #endif /* HWCOMPAT_H */
diff --git a/firmware/export/lv24020lp.h b/firmware/export/lv24020lp.h
new file mode 100644
index 0000000000..0fc39b18df
--- /dev/null
+++ b/firmware/export/lv24020lp.h
@@ -0,0 +1,51 @@
+/***************************************************************************
+ *             __________               __   ___.
+ *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
+ *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
+ *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
+ *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
+ *                     \/            \/     \/    \/            \/
+ * $Id$
+ * Tuner header for the Sanyo LV24020LP
+ *
+ * Copyright (C) 2007 Michael Sevakis
+ *
+ * All files in this archive are subject to the GNU General Public License.
+ * See the file COPYING in the source tree root for full license agreement.
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
+ * KIND, either express or implied.
+ *
+ ****************************************************************************/
+
+#ifndef _LV24020LP_H_
+#define _LV24020LP_H_
+
+/* Define additional tuner messages here */
+#define HAVE_RADIO_REGION
+
+#define LV24020LP_CTRL_STAT (RADIO_GET_CHIP_FIRST+0)
+#define LV24020LP_REG_STAT  (RADIO_GET_CHIP_FIRST+1)
+#define LV24020LP_MSS_FM    (RADIO_GET_CHIP_FIRST+2)
+#define LV24020LP_MSS_IF    (RADIO_GET_CHIP_FIRST+3)
+#define LV24020LP_MSS_SD    (RADIO_GET_CHIP_FIRST+4)
+#define LV24020LP_IF_SET    (RADIO_GET_CHIP_FIRST+5)
+#define LV24020LP_SD_SET    (RADIO_GET_CHIP_FIRST+6)
+
+struct lv24020lp_region_data
+{
+    unsigned char deemphasis;
+} __attribute__((packed));
+
+const unsigned char lv24020lp_region_data[TUNER_NUM_REGIONS];
+
+int lv24020lp_set(int setting, int value);
+int lv24020lp_get(int setting);
+void lv24020lp_power(bool status);
+
+#ifndef CONFIG_TUNER_MULTI
+#define tuner_set lv24020lp_set
+#define tuner_get lv24020lp_get
+#endif
+
+#endif /* _LV24020LP_H_ */
diff --git a/firmware/export/power.h b/firmware/export/power.h
index cafd6f87c8..8ecff6c51e 100644
--- a/firmware/export/power.h
+++ b/firmware/export/power.h
@@ -48,8 +48,8 @@ bool spdif_powered(void);
 #endif
 
 #if CONFIG_TUNER
-extern bool radio_power(bool status);
-extern bool radio_powered(void);
+extern bool tuner_power(bool status);
+extern bool tuner_powered(void);
 #endif
 
 #endif
diff --git a/firmware/export/s1a0903x01.h b/firmware/export/s1a0903x01.h
new file mode 100644
index 0000000000..bf497628b7
--- /dev/null
+++ b/firmware/export/s1a0903x01.h
@@ -0,0 +1,40 @@
+/***************************************************************************
+ *             __________               __   ___.
+ *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
+ *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
+ *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
+ *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
+ *                     \/            \/     \/    \/            \/
+ * $Id$
+ * Tuner header for the Samsung S1A0903X01
+ *
+ * Copyright (C) 2007 Michael Sevakis
+ *
+ * All files in this archive are subject to the GNU General Public License.
+ * See the file COPYING in the source tree root for full license agreement.
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
+ * KIND, either express or implied.
+ *
+ ****************************************************************************/
+
+#ifndef _S1A0903X01_H_
+#define _S1A0903X01_H_
+
+/* Define additional tuner messages here */
+#define HAVE_RADIO_MUTE_TIMEOUT
+
+#if 0
+#define S1A0903X01_IF_MEASUREMENT (RADIO_SET_CHIP_FIRST+0)
+#define S1A0903X01_SENSITIVITY    (RADIO_SET_CHIP_FIRST+1)
+#endif
+
+int s1a0903x01_set(int setting, int value);
+int s1a0903x01_get(int setting);
+
+#ifndef CONFIG_TUNER_MULTI
+#define tuner_set s1a0903x01_get
+#define tuner_get s1a0903x01_set
+#endif
+
+#endif /* _S1A0903X01_H_ */
diff --git a/firmware/export/tea5767.h b/firmware/export/tea5767.h
new file mode 100644
index 0000000000..dfa6149f20
--- /dev/null
+++ b/firmware/export/tea5767.h
@@ -0,0 +1,50 @@
+/***************************************************************************
+ *             __________               __   ___.
+ *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
+ *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
+ *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
+ *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
+ *                     \/            \/     \/    \/            \/
+ * $Id$
+ * Tuner header for the Philips TEA5767
+ *
+ * Copyright (C) 2007 Michael Sevakis
+ *
+ * All files in this archive are subject to the GNU General Public License.
+ * See the file COPYING in the source tree root for full license agreement.
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
+ * KIND, either express or implied.
+ *
+ ****************************************************************************/
+
+#ifndef _TEA5767_H_
+#define _TEA5767_H_
+
+#define HAVE_RADIO_REGION
+#define HAVE_RADIO_MUTE_TIMEOUT
+
+struct tea5767_region_data
+{
+    unsigned char deemphasis; /* 0: 50us, 1: 75us */
+    unsigned char band; /* 0: europe, 1: japan (BL in TEA spec)*/
+} __attribute__((packed));
+
+const struct tea5767_region_data tea5767_region_data[TUNER_NUM_REGIONS];
+
+struct tea5767_dbg_info
+{
+    unsigned char read_regs[5];
+    unsigned char write_regs[5];
+};
+
+int tea5767_set(int setting, int value);
+int tea5767_get(int setting);
+void tea5767_dbg_info(struct tea5767_dbg_info *info);
+
+#ifndef CONFIG_TUNER_MULTI
+#define tuner_set tea5767_set
+#define tuner_get tea5767_get
+#endif
+
+#endif /* _TEA5767_H_ */
diff --git a/firmware/export/tuner.h b/firmware/export/tuner.h
index 9f6d29f697..cf18102744 100644
--- a/firmware/export/tuner.h
+++ b/firmware/export/tuner.h
@@ -22,101 +22,112 @@
 
 #include "hwcompat.h"
 
-/* settings to the tuner layer */
-#define RADIO_ALL               -1 /* debug */
-#define RADIO_SLEEP             0
-#define RADIO_FREQUENCY         1
-#define RADIO_MUTE              2
-#define RADIO_IF_MEASUREMENT    3
-#define RADIO_SENSITIVITY       4
-#define RADIO_FORCE_MONO        5
-#define RADIO_SCAN_FREQUENCY    6
-#if (CONFIG_TUNER & TEA5767)
-#define RADIO_SET_DEEMPHASIS    7
-#define RADIO_SET_BAND          8
-#endif
-#if (CONFIG_TUNER & LV24020LP)
-#define RADIO_REGION            9 /* to be used for all tuners */
-#define RADIO_REG_STAT          100
-#define RADIO_MSS_FM            101
-#define RADIO_MSS_IF            102
-#define RADIO_MSS_SD            103
-#define RADIO_IF_SET            104
-#define RADIO_SD_SET            105
-#endif
-/* readback from the tuner layer */
-#define RADIO_PRESENT           0
-#define RADIO_TUNED             1
-#define RADIO_STEREO            2
+/** Settings to the tuner layer **/
+enum
+{
+    RADIO_ALL = -1, /* debug */
+    RADIO_SLEEP,
+    RADIO_FREQUENCY,
+    RADIO_MUTE,
+    RADIO_FORCE_MONO,
+    RADIO_SCAN_FREQUENCY,
+
+    /* Put new general-purpose settings above this line */
+    __RADIO_SET_STANDARD_LAST
+};
+
+/** Readback from the tuner layer **/
+enum
+{
+    RADIO_PRESENT = 0,
+    RADIO_TUNED,
+    RADIO_STEREO,
+
+    /* Put new general-purpose readback values above this line */
+    __RADIO_GET_STANDARD_LAST
+};
+
+/** Tuner regions **/
+
+/* Basic region information */
+enum
+{
+    REGION_EUROPE = 0,
+    REGION_US_CANADA,
+    REGION_JAPAN,
+    REGION_KOREA,
+
+    /* Add new regions above this line */
+    TUNER_NUM_REGIONS
+};
 
-#define REGION_EUROPE           0
-#define REGION_US_CANADA        1
-#define REGION_JAPAN            2
-#define REGION_KOREA            3
+struct fm_region_data
+{
+    int freq_min;
+    int freq_max;
+    int freq_step;
+};
+
+extern const struct fm_region_data fm_region_data[TUNER_NUM_REGIONS];
 
 #if CONFIG_TUNER
 
 #ifdef SIMULATOR
-int radio_set(int setting, int value);
-int radio_get(int setting);
+int tuner_set(int setting, int value);
+int tuner_get(int setting);
 #else
-#if CONFIG_TUNER == S1A0903X01 /* FM recorder */
-#define radio_set samsung_set
-#define radio_get samsung_get
-#elif CONFIG_TUNER == LV24020LP  /* Sansa */
-#define radio_set sanyo_set
-#define radio_get sanyo_get
-#elif CONFIG_TUNER == TEA5767  /* iRiver, iAudio */
-#define radio_set philips_set
-#define radio_get philips_get
-#elif CONFIG_TUNER == (S1A0903X01 | TEA5767) /* OndioFM */
-#define radio_set _radio_set
-#define radio_get _radio_get
-int (*_radio_set)(int setting, int value);
-int (*_radio_get)(int setting);
-#endif /* CONFIG_TUNER == */
-#endif /* SIMULATOR */
 
-#if (CONFIG_TUNER & S1A0903X01)
-int samsung_set(int setting, int value);
-int samsung_get(int setting);
-#endif /* CONFIG_TUNER & S1A0903X01 */
+#ifdef CONFIG_TUNER_MULTI
+extern int (*tuner_set)(int setting, int value);
+extern int (*tuner_get)(int setting);
+#endif /* CONFIG_TUNER_MULTI */
 
+/** Sanyo LV24020LP **/
 #if (CONFIG_TUNER & LV24020LP)
-int sanyo_set(int setting, int value);
-int sanyo_get(int setting);
-#endif /* CONFIG_TUNER & LV24020LP */
+/* Sansa e200 Series */
+#include "lv24020lp.h"
+#endif
+
+/** Samsung S1A0903X01 **/
+#if (CONFIG_TUNER & S1A0903X01)
+/* Ondio FM, FM Recorder */
+#include "s1a0903x01.h"
+#endif
 
+/** Philips TEA5767 **/
 #if (CONFIG_TUNER & TEA5767)
-struct philips_dbg_info
+/* Ondio FM, FM Recorder, Recorder V2, iRiver h100/h300, iAudio x5 */
+#include "tea5767.h"
+#endif
+
+#endif /* SIMULATOR */
+
+/* Additional messages that get enumerated after tuner driver headers */
+
+/* for tuner_set */
+enum
 {
-    unsigned char read_regs[5];
-    unsigned char write_regs[5];
+    __RADIO_SET_ADDITIONAL_START = __RADIO_SET_STANDARD_LAST-1,
+#ifdef HAVE_RADIO_REGION
+    RADIO_REGION,
+#endif
+
+    RADIO_SET_CHIP_FIRST
 };
-int philips_set(int setting, int value);
-int philips_get(int setting);
-void philips_dbg_info(struct philips_dbg_info *info);
-#endif /* CONFIG_TUNER & TEA5767 */
-
-/* Just inline here since only radio screen needs this atm and
-   there's no tuner.c. */
-static inline void tuner_init(void)
+
+/* for tuner_get */
+enum
 {
-#ifndef SIMULATOR
-#if CONFIG_TUNER == (S1A0903X01 | TEA5767)
-    if (HW_MASK & TUNER_MODEL)
-    {
-        _radio_set = philips_set;
-        _radio_get = philips_get;
-    }
-    else
-    {
-        _radio_set = samsung_set;
-        _radio_get = samsung_get;
-    }
-#endif
-#endif
-}
+    __RADIO_GET_ADDITIONAL_START = __RADIO_SET_STANDARD_LAST-1,
+
+    RADIO_GET_CHIP_FIRST
+};
+
+/** **/
+
+void tuner_init(void);
+bool tuner_power(bool power);
+bool tuner_powered(void);
 
 #endif /* #if CONFIG_TUNER */
 
diff --git a/firmware/target/arm/archos/av300/power-av300.c b/firmware/target/arm/archos/av300/power-av300.c
index cfdce69b13..6cc8b4f7c7 100644
--- a/firmware/target/arm/archos/av300/power-av300.c
+++ b/firmware/target/arm/archos/av300/power-av300.c
@@ -84,12 +84,12 @@ void ide_power_enable(bool on)
 
 static bool powered = false;
 
-bool radio_powered()
+bool tuner_powered()
 {
     return powered;
 }
 
-bool radio_power(bool status)
+bool tuner_power(bool status)
 {
     bool old_status = powered;
     powered = status;
diff --git a/firmware/target/arm/iriver/h10/power-h10.c b/firmware/target/arm/iriver/h10/power-h10.c
index 63eb2dc189..d0d3ce59d1 100644
--- a/firmware/target/arm/iriver/h10/power-h10.c
+++ b/firmware/target/arm/iriver/h10/power-h10.c
@@ -40,12 +40,12 @@ bool charger_enabled;
 
 static bool powered = false;
 
-bool radio_powered()
+bool tuner_powered()
 {
     return powered;
 }
 
-bool radio_power(bool status)
+bool tuner_power(bool status)
 {
     bool old_status = powered;
     powered = status;
diff --git a/firmware/target/arm/pnx0101/iriver-ifp7xx/power-ifp7xx.c b/firmware/target/arm/pnx0101/iriver-ifp7xx/power-ifp7xx.c
index 4e4f585298..dfdcb1d27a 100644
--- a/firmware/target/arm/pnx0101/iriver-ifp7xx/power-ifp7xx.c
+++ b/firmware/target/arm/pnx0101/iriver-ifp7xx/power-ifp7xx.c
@@ -30,12 +30,12 @@
 
 static bool powered = false;
 
-bool radio_powered(void)
+bool tuner_powered(void)
 {
     return powered;
 }
 
-bool radio_power(bool status)
+bool tuner_power(bool status)
 {
     bool old_status = powered;
     powered = status;
diff --git a/firmware/target/arm/sandisk/sansa-e200/power-e200.c b/firmware/target/arm/sandisk/sansa-e200/power-e200.c
index dfa4211a91..002dcb8407 100644
--- a/firmware/target/arm/sandisk/sansa-e200/power-e200.c
+++ b/firmware/target/arm/sandisk/sansa-e200/power-e200.c
@@ -21,6 +21,7 @@
 #include "system.h"
 #include "cpu.h"
 #include "i2c-pp.h"
+#include "tuner.h"
 
 void power_init(void)
 {
@@ -61,3 +62,60 @@ void ide_power_enable(bool on)
 {
     (void)on;
 }
+
+/** Tuner **/
+static bool powered = false;
+
+bool tuner_power(bool status)
+{
+    bool old_status = powered;
+
+    if (status != old_status)
+    {
+        if (status)
+        {
+            /* init mystery amplification device */
+            outl(inl(0x70000084) | 0x1, 0x70000084);
+            udelay(5);
+
+            /* When power up, host should initialize the 3-wire bus
+               in host read mode: */
+
+            /* 1. Set direction of the DATA-line to input-mode. */
+            GPIOH_OUTPUT_EN &= ~(1 << 5); 
+            GPIOH_ENABLE |= (1 << 5); 
+
+            /* 2. Drive NR_W low */
+            GPIOH_OUTPUT_VAL &= ~(1 << 3); 
+            GPIOH_OUTPUT_EN |= (1 << 3); 
+            GPIOH_ENABLE |= (1 << 3); 
+
+            /* 3. Drive CLOCK high */
+            GPIOH_OUTPUT_VAL |= (1 << 4); 
+            GPIOH_OUTPUT_EN |= (1 << 4); 
+            GPIOH_ENABLE |= (1 << 4);
+
+            lv24020lp_power(true);
+        }
+        else
+        {
+            lv24020lp_power(false);
+
+            /* set all as inputs */
+            GPIOH_OUTPUT_EN &= ~((1 << 5) | (1 << 3) | (1 << 4));
+            GPIOH_ENABLE &= ~((1 << 5) | (1 << 3) | (1 << 4)); 
+
+            /* turn off mystery amplification device */
+            outl(inl(0x70000084) & ~0x1, 0x70000084);
+        }
+
+        powered = status;
+    }
+
+    return old_status;
+}
+
+bool tuner_powered(void)
+{
+    return powered;
+}
diff --git a/firmware/target/coldfire/iaudio/x5/power-x5.c b/firmware/target/coldfire/iaudio/x5/power-x5.c
index c646570821..5c6c388a71 100644
--- a/firmware/target/coldfire/iaudio/x5/power-x5.c
+++ b/firmware/target/coldfire/iaudio/x5/power-x5.c
@@ -90,12 +90,12 @@ void ide_power_enable(bool on)
 
 static bool powered = false;
 
-bool radio_powered()
+bool tuner_powered()
 {
     return powered;
 }
 
-bool radio_power(bool status)
+bool tuner_power(bool status)
 {
     bool old_status = powered;
     powered = status;
diff --git a/firmware/target/coldfire/iriver/h100/power-h100.c b/firmware/target/coldfire/iriver/h100/power-h100.c
index 943168967f..c1841264a2 100644
--- a/firmware/target/coldfire/iriver/h100/power-h100.c
+++ b/firmware/target/coldfire/iriver/h100/power-h100.c
@@ -29,12 +29,12 @@
 
 static bool powered = false;
 
-bool radio_powered(void)
+bool tuner_powered(void)
 {
     return powered;
 }
 
-bool radio_power(bool status)
+bool tuner_power(bool status)
 {
     bool old_status = powered;
     powered = status;
diff --git a/firmware/target/coldfire/iriver/h300/power-h300.c b/firmware/target/coldfire/iriver/h300/power-h300.c
index 5e57326c36..b687b29cba 100644
--- a/firmware/target/coldfire/iriver/h300/power-h300.c
+++ b/firmware/target/coldfire/iriver/h300/power-h300.c
@@ -29,12 +29,12 @@
 
 static bool powered = false;
 
-bool radio_powered(void)
+bool tuner_powered(void)
 {
     return powered;
 }
 
-bool radio_power(bool status)
+bool tuner_power(bool status)
 {
     bool old_status = powered;
     powered = status;