devs/foxbox
1
0
Fork 0
forked from len0rd/rockbox
Code Pull requests Activity

Fixed tlv320 mute problem at least for digital audio path. Analog bypass muting (during FM Radio listening) will require more drastic measures like powering down of part of the chip afaict.

Browse source 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@11065 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Michael Sevakis 2006-09-26 18:57:31 +00:00
parent 7d1dcd118d
commit 2dbe428abc
1 changed files with 16 additions and 7 deletions
Download patch file Download diff file Expand all files Collapse all files

23
firmware/drivers/tlv320.c
View file

@ -102,20 +102,25 @@ void tlv320_reset(void)
*/
void tlv320_set_headphone_vol(int vol_l, int vol_r)
{
unsigned value_l = tlv320_regs[REG_LHV];
unsigned value_r = tlv320_regs[REG_RHV];
unsigned value_dap = tlv320_regs[REG_DAP];
unsigned value_dap_last = value_dap;
unsigned value_l = LHV_LHV(vol_l);
unsigned value_r = RHV_RHV(vol_r);
/* keep track of current setting */
tlv320.vol_l = vol_l;
tlv320.vol_r = vol_r;
/* set new values in local register holders */
value_l = LHV_LHV(vol_l);
value_r = RHV_RHV(vol_r);
if (value_l > HEADPHONE_MUTE || value_r > HEADPHONE_MUTE)
value_dap &= ~DAP_DACM;
else
value_dap |= DAP_DACM;
/* update */
tlv320_write_reg(REG_LHV, LHV_LZC | value_l);
tlv320_write_reg(REG_RHV, RHV_RZC | value_r);
if (value_dap != value_dap_last)
tlv320_write_reg(REG_DAP, value_dap);
}
/**
@ -152,22 +157,26 @@ void tlv320_set_recvol(int left, int right, int type)
*/
void tlv320_mute(bool mute)
{
unsigned value_l = tlv320_regs[REG_LHV];
unsigned value_r = tlv320_regs[REG_RHV];
unsigned value_dap = tlv320_regs[REG_DAP];
unsigned value_l, value_r;
if (mute)
{
value_l = LHV_LHV(HEADPHONE_MUTE);
value_r = RHV_RHV(HEADPHONE_MUTE);
value_dap |= DAP_DACM;
}
else
{
value_l = LHV_LHV(tlv320.vol_l);
value_r = RHV_RHV(tlv320.vol_r);
if (value_l > HEADPHONE_MUTE || value_r > HEADPHONE_MUTE)
value_dap &= ~DAP_DACM;
}
tlv320_write_reg(REG_LHV, LHV_LZC | value_l);
tlv320_write_reg(REG_RHV, RHV_RZC | value_r);
tlv320_write_reg(REG_DAP, value_dap);
}
/* Nice shutdown of TLV320 codec */