len0rd/rockbox
1
0
Fork 1
mirror of https://github.com/Rockbox/rockbox.git synced 2025-11-09 21:22:39 -05:00
Code Issues Projects Releases Packages Wiki Activity Actions

imx233: fix audioout for stmp3600 and stmp3700, add 3d effect

Browse source 
Although the 3D effets sound terrible, add support for it.

Change-Id: Ib24be01986a974387b592c6e291d34b196ceb884
This commit is contained in:
Amaury Pouly 2013-06-17 00:23:45 +02:00
parent f0f6aee58c
commit 63ffdc1c89
2 changed files with 29 additions and 3 deletions
Download patch file Download diff file Expand all files Collapse all files

30
firmware/target/arm/imx233/audioout-imx233.c
View file

@ -37,6 +37,7 @@ static int hp_unmute_cb(struct timeout *tmo)
void imx233_audioout_preinit(void)
{
/* Enable AUDIOOUT block */
imx233_reset_block(&HW_AUDIOOUT_CTRL);
/* Enable digital filter clock */
@ -57,7 +58,9 @@ void imx233_audioout_preinit(void)
/* change bias to -50% */
BF_WR(AUDIOOUT_TEST, HP_I1_ADJ, 1);
BF_WR(AUDIOOUT_REFCTRL, BIAS_CTRL, 1);
#if IMX233_SUBTARGET >= 3700
BF_SET(AUDIOOUT_REFCTRL, RAISE_REF);
#endif
BF_SET(AUDIOOUT_REFCTRL, XTAL_BGR_BIAS);
/* Stop holding to ground */
BF_CLR(AUDIOOUT_ANACTRL, HP_HOLD_GND);
@ -72,12 +75,12 @@ void imx233_audioout_preinit(void)
HW_AUDIOOUT_DATA = 0;
HW_AUDIOOUT_DATA = 0;
HW_AUDIOOUT_DATA = 0;
/* wait for everything to stabilize before unmuting */
timeout_register(&hp_unmute_oneshort, hp_unmute_cb, HZ / 2, 0);
}
void imx233_audioout_postinit(void)
{
/* wait for everything to stabilize before unmuting */
timeout_register(&hp_unmute_oneshort, hp_unmute_cb, HZ / 2, 0);
}
void imx233_audioout_close(void)
@ -127,7 +130,11 @@ static void set_hp_vol(int vol_l, int vol_r)
vol_l = MAX(min, MIN(vol_l, max));
vol_r = MAX(min, MIN(vol_r, max));
/* unmute, enable zero cross and set volume.*/
#if IMX233_SUBTARGET >= 3700
unsigned mstr_zcd = BM_AUDIOOUT_HPVOL_EN_MSTR_ZCD;
#else
unsigned mstr_zcd = 0;
#endif
HW_AUDIOOUT_HPVOL = mstr_zcd | BF_OR3(AUDIOOUT_HPVOL, SELECT(input_line1),
VOL_LEFT(max - vol_l), VOL_RIGHT(max - vol_r));
}
@ -183,7 +190,7 @@ void imx233_audioout_set_freq(int fsel)
HW_AUDIOOUT_DACSRR = BF_OR4(AUDIOOUT_DACSRR,
SRC_FRAC(dacssr[fsel].src_frac), SRC_INT(dacssr[fsel].src_int),
SRC_HOLD(dacssr[fsel].src_hold), BASEMULT(dacssr[fsel].base_mult));
#if 0
/* Select base_mult and src_hold depending on the audio range:
* 0 < f <= 12000 --> base_mult = 1, src_hold = 3 (div by 4)
@ -218,3 +225,20 @@ void imx233_audioout_select_hp_input(bool line1)
/* reapply volume setting */
apply_volume();
}
void imx233_audioout_set_3d_effect(int val)
{
switch(val)
{
/* 0 and 1.5dB: off */
case 0: case 1: BF_WR(AUDIOOUT_CTRL, SS3D_EFFECT, 0); break;
/* 3dB: low */
case 2: BF_WR(AUDIOOUT_CTRL, SS3D_EFFECT, 1); break;
/* 4.5dB: low */
case 3: BF_WR(AUDIOOUT_CTRL, SS3D_EFFECT, 2); break;
/* 6dB: low */
case 4: BF_WR(AUDIOOUT_CTRL, SS3D_EFFECT, 3); break;
/* others: off */
default: BF_WR(AUDIOOUT_CTRL, SS3D_EFFECT, 0); break;
}
}