config: USB_CHARGING_FORCE must be enabled for all iPods

If not, these devices will charge very slowly (0.07A) when plugged into a wall plug, and will all discharge slowly when docked & playing music.

Enabling this option (that is already enabled by default on some other devices like erosq and fiio m3k) make them pull between 0.20 and 0.30. They charge faster, just as fast as on Stock OS, and won't discharge when playing music while docked.

Change-Id: I90a59caaca463354772b1869f7333d8efce4f117

firmware/SOURCES

@@ -145,10 +145,12 @@ target/hosted/sonynwz/nwzlinux-codec.c
 #endif
 #endif
 
+#if !defined(BOOTLOADER)
 #if ((defined(HIBY_LINUX) || defined(FIIO_M3K_LINUX) || defined(SAMSUNG_YPR0) || defined(SAMSUNG_YPR1) || defined(SONY_NWZ_LINUX)) && !defined(SIMULATOR))
 target/hosted/pcm-alsa.c
 target/hosted/alsa-controls.c
 #endif
+#endif
 
 #if ((defined(HIBY_LINUX) || defined(FIIO_M3K_LINUX)) && !defined(SIMULATOR))
 drivers/lcd-memframe.c

firmware/export/config/ipod4g.h

@@ -153,6 +153,7 @@
 /* define this if the unit can have USB charging disabled by user -
  * if USB/MAIN power is discernable and hardware doesn't compel charging */
 #define HAVE_USB_CHARGING_ENABLE
+#define TARGET_USB_CHARGING_DEFAULT USB_CHARGING_FORCE
 
 /* define current usage levels */
 #define CURRENT_NORMAL     100  /* MP3: ~10.5h out of 1100mAh battery  */

firmware/export/config/ipodcolor.h

@@ -140,6 +140,7 @@
 /* define this if the unit can have USB charging disabled by user -
  * if USB/MAIN power is discernable and hardware doesn't compel charging */
 #define HAVE_USB_CHARGING_ENABLE
+#define TARGET_USB_CHARGING_DEFAULT USB_CHARGING_FORCE
 
 /* define current usage levels */
 #define CURRENT_NORMAL     69  /* ~10h (700mAh), see FS#9072 */

firmware/export/config/ipodmini1g.h

@@ -156,6 +156,7 @@
 :Qa
  * if USB/MAIN power is discernable and hardware doesn't compel charging */
 #define HAVE_USB_CHARGING_ENABLE
+#define TARGET_USB_CHARGING_DEFAULT USB_CHARGING_FORCE
 
 /* Define Apple remote tuner */
 #define CONFIG_TUNER IPOD_REMOTE_TUNER

firmware/export/config/ipodmini2g.h

@@ -156,7 +156,7 @@
 /* define this if the unit can have USB charging disabled by user -
  * if USB/MAIN power is discernable and hardware doesn't compel charging */
 #define HAVE_USB_CHARGING_ENABLE
-
+#define TARGET_USB_CHARGING_DEFAULT USB_CHARGING_FORCE
 
 /* Define Apple remote tuner */
 #define CONFIG_TUNER IPOD_REMOTE_TUNER

firmware/export/config/ipodnano1g.h

@@ -144,6 +144,7 @@
 /* define this if the unit can have USB charging disabled by user -
  * if USB/MAIN power is discernable and hardware doesn't compel charging */
 #define HAVE_USB_CHARGING_ENABLE
+#define TARGET_USB_CHARGING_DEFAULT USB_CHARGING_FORCE
 
 #define CURRENT_NORMAL     32  /* MP3: ~9h playback out of 300mAh battery */
 #define CURRENT_BACKLIGHT  20  /* FIXME: this needs adjusting */

firmware/export/config/ipodvideo.h

@@ -160,6 +160,7 @@
 /* define this if the unit can have USB charging disabled by user -
  * if USB/MAIN power is discernable and hardware doesn't compel charging */
 #define HAVE_USB_CHARGING_ENABLE
+#define TARGET_USB_CHARGING_DEFAULT USB_CHARGING_FORCE
 
 /* define current usage levels */
 #define CURRENT_NORMAL     24  /* 30MHz clock, LCD off, accessory supply on */

firmware/pcm_sw_volume.c

@@ -51,23 +51,29 @@ static typeof (memcpy) *pcm_scaling_fn = NULL;
 
 /* take care of some defines for 32-bit software vol */
 #if (PCM_NATIVE_BITDEPTH > 16) /* >16-bit */
-
 # define HAVE_SWVOL_32
-# define PCM_VOL_SAMPLE_SIZE     (2 * sizeof (int32_t))
+# define PCM_VOL_SAMPLE_SIZE    (2 * sizeof (int32_t))
-# define PCM_DBL_BUF_SIZE_T int32_t
+# define PCM_DBL_BUF_SIZE_T     int32_t
-
-# if !defined(PCM_DC_OFFSET_VALUE)
-/* PCM_DC_OFFSET_VALUE is only needed due to hardware quirk on Eros Q */
-#  define PCM_DC_OFFSET_VALUE 0
-# endif
-
 #else /* 16-BIT */
-
+# define PCM_VOL_SAMPLE_SIZE    (2 * sizeof (int16_t))
-# define PCM_VOL_SAMPLE_SIZE     PCM_SAMPLE_SIZE
+# define PCM_DBL_BUF_SIZE_T     int16_t
-# define PCM_DBL_BUF_SIZE_T int16_t
-
 #endif /* 16-BIT */
 
+#if !defined(PCM_DC_OFFSET_VALUE)
+/* PCM_DC_OFFSET_VALUE is only needed due to hardware quirk on Eros Q */
+# define PCM_DC_OFFSET_VALUE 0
+#endif
+
+/*
+ * 16-bit samples are scaled up to an effective bit depth
+ * of (16+fracbits) bits and must be shifted to produce a
+ * native bit depth sample. Positive values correspond to
+ * right shifts (throwing away bits of the scaled result)
+ * while negative values correspond to left shifts (where
+ * the scaled result completely fits in the native sample).
+ */
+#define PCM_SCALE_SHIFT (16 + PCM_SW_VOLUME_FRACBITS - PCM_NATIVE_BITDEPTH)
+
 /***
  ** Volume scaling routines
  ** If unbuffered, called externally by pcm driver
@@ -83,10 +89,10 @@ static typeof (memcpy) *pcm_scaling_fn = NULL;
 /* Scale sample by PCM factor */
 static inline int32_t pcm_scale_sample(PCM_F_T f, int32_t s)
 {
-#if defined(HAVE_SWVOL_32)
+#if PCM_SCALE_SHIFT > 0
-    return (f * s + PCM_DC_OFFSET_VALUE) >> (32 - PCM_NATIVE_BITDEPTH);
+    return (f * s + PCM_DC_OFFSET_VALUE) >> PCM_SCALE_SHIFT;
 #else
-    return (f * s) >> PCM_SW_VOLUME_FRACBITS;
+    return (f * s + PCM_DC_OFFSET_VALUE) << (-PCM_SCALE_SHIFT);
 #endif
 }
 
@@ -347,28 +353,10 @@ static uint32_t pcm_centibels_to_factor(int volume)
 {
     if (volume == PCM_MUTE_LEVEL)
         return 0; /* mute */
-#if defined(HAVE_SWVOL_32)
+
-    /*
-     * 32-bit software volume taken from pcm-alsa.c
-     */
-    volume += 48; /* -42dB .. 0dB => 5dB .. 48dB */
-    /* NOTE if vol_dB = 5 then vol_shift = 1 but r = 1 so we do vol_shift - 1 >= 0
-     * otherwise vol_dB >= 0 implies vol_shift >= 2 so vol_shift - 2 >= 0 */
-    int vol_shift = volume / 3;
-    int r = volume % 3;
-    int32_t dig_vol_mult;
-    if(r == 0)
-        dig_vol_mult = 1 << vol_shift;
-    else if(r == 1)
-        dig_vol_mult = 1 << vol_shift | 1 << (vol_shift - 2);
-    else
-        dig_vol_mult = 1 << vol_shift | 1 << (vol_shift - 1);
-    return dig_vol_mult;
-#else /* standard software volume */
     /* Centibels -> fixedpoint */
     return (uint32_t)fp_factor(fp_div(volume, 10, PCM_SW_VOLUME_FRACBITS),
                                PCM_SW_VOLUME_FRACBITS);
-#endif /* HAVE_SWVOL_32 */
 }
 
 

firmware/target/hosted/aigo/erosqlinux_codec.c

@@ -204,7 +204,7 @@ static void audiohw_set_volume_v1(int vol_l, int vol_r)
 
     int sw_volume_l = l <= min_pcm ? min_pcm : MIN(l, max_pcm);
     int sw_volume_r = r <= min_pcm ? min_pcm : MIN(r, max_pcm);
-    pcm_set_mixer_volume(sw_volume_l / 20, sw_volume_r / 20);
+    pcm_set_mixer_volume(sw_volume_l, sw_volume_r);
 }
 
 static void audiohw_set_volume_v2(int vol_l, int vol_r)
@@ -236,7 +236,7 @@ static void audiohw_set_volume_v2(int vol_l, int vol_r)
     alsa_controls_set_ints("Right Playback Volume", 1, &r);
 
     /* Dial back PCM mixer to avoid compression */
-    pcm_set_mixer_volume(global_settings.volume_limit / 2, global_settings.volume_limit / 2);
+    pcm_set_mixer_volume(global_settings.volume_limit, global_settings.volume_limit);
 }
 
 void audiohw_set_volume(int vol_l, int vol_r)
@@ -274,7 +274,7 @@ void audiohw_set_lineout_volume(int vol_l, int vol_r)
             } else {
                 int sw_volume_l = l <= min_pcm ? min_pcm : MIN(l, max_pcm);
                 int sw_volume_r = r <= min_pcm ? min_pcm : MIN(r, max_pcm);
-                pcm_set_mixer_volume(sw_volume_l / 20, sw_volume_r / 20);
+                pcm_set_mixer_volume(sw_volume_l, sw_volume_r);
             }
         }
     }

firmware/target/hosted/fiio/fiiolinux_codec.c

@@ -95,21 +95,21 @@ void audiohw_set_volume(int vol_l, int vol_r)
     if (ak_hw < 0)
        return;
 
-    vol[0] = vol_l / 20;
+    vol[0] = vol_l;
-    vol[1] = vol_r / 20;
+    vol[1] = vol_r;
 
     for (int i = 0; i < 2; i++)
     {
-        if (vol[i] > -56)
+        if (vol[i] > -1120)
         {
-            if (vol[i] < -12)
+            if (vol[i] < -240)
             {
                 vol_hw[i] = 1;
-                vol_sw[i] = vol[i] + 12;
+                vol_sw[i] = vol[i] + 240;
             }
             else
             {
-                vol_hw[i] = 25 - (-vol[i] * 2);
+                vol_hw[i] = 25 - (-vol[i] / 10);
                 vol_sw[i] = 0;
             }
         }

firmware/target/hosted/pcm-alsa.c

@@ -50,6 +50,7 @@
 #include "pcm_sampr.h"
 #include "audiohw.h"
 #include "pcm-alsa.h"
+#include "fixedpoint.h"
 
 #include "logf.h"
 
@@ -267,46 +268,14 @@ error:
 }
 
 #if defined(HAVE_ALSA_32BIT)
-/* Digital volume explanation:
+/* Multiplicative factors applied to each sample */
- * with very good approximation (<0.1dB) the convertion from dB to multiplicative
+static int32_t dig_vol_mult_l = 0;
- * factor, for dB>=0, is 2^(dB/3). We can then notice that if we write dB=3*k+r
+static int32_t dig_vol_mult_r = 0;
- * then this is 2^k*2^(r/3) so we only need to look at r=0,1,2. For r=0 this is
+
- * 1, for r=1 we have 2^(1/3)~=1.25 so we approximate by 1+1/4, and 2^(2/3)~=1.5
- * so we approximate by 1+1/2. To go from negative to nonnegative we notice that
- * 48 dB => 63095 factor ~= 2^16 so we virtually pre-multiply everything by 2^(-16)
- * and add 48dB to the input volume. We cannot go lower -43dB because several
- * values between -48dB and -43dB would require a fractional multiplier, which is
- * stupid to implement for such very low volume. */
-static int dig_vol_mult_l = 2 << 16; /* multiplicative factor to apply to each sample */
-static int dig_vol_mult_r = 2 << 16; /* multiplicative factor to apply to each sample */
 void pcm_set_mixer_volume(int vol_db_l, int vol_db_r)
 {
-    if(vol_db_l > 0 || vol_db_r > 0 || vol_db_l < -43 || vol_db_r < -43)
+    dig_vol_mult_l = fp_factor(fp_div(vol_db_l, 10, 16), 16);
-        panicf("invalid pcm alsa volume %d %d",   vol_db_l, vol_db_r);
+    dig_vol_mult_r = fp_factor(fp_div(vol_db_r, 10, 16), 16);
-    if(format != SND_PCM_FORMAT_S32_LE)
-        panicf("this function assumes 32-bit sample size");
-    vol_db_l += 48; /* -42dB .. 0dB => 5dB .. 48dB */
-    vol_db_r += 48; /* -42dB .. 0dB => 5dB .. 48dB */
-    /* NOTE if vol_dB = 5 then vol_shift = 1 but r = 1 so we do vol_shift - 1 >= 0
-     * otherwise vol_dB >= 0 implies vol_shift >= 2 so vol_shift - 2 >= 0 */
-    int vol_shift_l = vol_db_l / 3;
-    int vol_shift_r = vol_db_r / 3;
-    int r_l = vol_db_l % 3;
-    int r_r = vol_db_r % 3;
-    if(r_l == 0)
-        dig_vol_mult_l = 1 << vol_shift_l;
-    else if(r_l == 1)
-        dig_vol_mult_l = 1 << vol_shift_l | 1 << (vol_shift_l - 2);
-    else
-        dig_vol_mult_l = 1 << vol_shift_l | 1 << (vol_shift_l - 1);
-    logf("l: %d dB -> factor = %d", vol_db_l - 48, dig_vol_mult_l);
-    if(r_r == 0)
-        dig_vol_mult_r = 1 << vol_shift_r;
-    else if(r_r == 1)
-        dig_vol_mult_r = 1 << vol_shift_r | 1 << (vol_shift_r - 2);
-    else
-        dig_vol_mult_r = 1 << vol_shift_r | 1 << (vol_shift_r - 1);
-    logf("r: %d dB -> factor = %d", vol_db_r - 48, dig_vol_mult_r);
 }
 #endif
 

firmware/target/hosted/pcm-alsa.h

@@ -21,10 +21,12 @@
 #define __PCM_ALSA_RB_H__
 
 #include <config.h>
+#include <limits.h>
 
 #if defined(HAVE_ALSA_32BIT)
+
 /* Set the PCM volume in dB: each sample with have this volume applied digitally
- * before being sent to ALSA. Volume must satisfy -43 <= dB <= 0 */
+ * before being sent to ALSA. Effective range -79 dB to 0 dB */
 void pcm_set_mixer_volume(int vol_db_l, int vol_db_r);
 #endif
 

firmware/target/hosted/sonynwz/nwzlinux-codec.c

@@ -415,7 +415,7 @@ void audiohw_set_volume(int vol_l, int vol_r)
     printf(" set driver volume %d (%d dB)\n", drv_vol, curve->level[drv_vol] / 10);
     nwz_set_driver_vol(drv_vol);
     printf(" set digital volume %d dB\n", vol / 10);
-    pcm_set_mixer_volume(vol / 10, vol / 10);
+    pcm_set_mixer_volume(vol, vol);
 }
 
 void audiohw_close(void)

firmware/target/mips/ingenic_x1000/erosqnative/audiohw-erosqnative.c

@@ -200,8 +200,8 @@ void audiohw_set_volume(int vol_l, int vol_r)
     }
     else /* PCM5102A */
     {
-        l = l <= PCM5102A_VOLUME_MIN ? PCM_MUTE_LEVEL : (l / 20);
+        l = l <= PCM5102A_VOLUME_MIN ? PCM_MUTE_LEVEL : l;
-        r = r <= PCM5102A_VOLUME_MIN ? PCM_MUTE_LEVEL : (r / 20);
+        r = r <= PCM5102A_VOLUME_MIN ? PCM_MUTE_LEVEL : r;
 
         pcm_set_master_volume(l, r);
     }
@@ -214,4 +214,4 @@ void audiohw_set_filter_roll_off(int value)
         es9018k2m_set_filter_roll_off(value);
     }
 }
-#endif /* !defined(BOOTLOADER) */
+#endif /* !defined(BOOTLOADER) */