evie/android_kernel_oneplus_msm8998
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

btfm: set watermark level to 3 for wcn3990 slimbus FM slave ports

Browse source 
Without this, we hear silence or delay in sound during FM playback in
following use cases -
1. Switching between FM and media applications like YouTube
2. Changing volume during FM FTM

Change-Id: I51072ab70e6bc34e1ed10222ee289d987ed9ffbf
Signed-off-by: Rupesh Tatiya <rtatiya@codeaurora.org>
This commit is contained in:
Rupesh Tatiya 2017-04-18 19:25:11 +05:30
parent 048c70075f
commit 6737311d22
1 changed files with 17 additions and 7 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

22
drivers/bluetooth/btfm_slim_wcn3990.c
View file

@ -69,6 +69,14 @@ error:
return ret;
}
static inline int is_fm_port(uint8_t port_num)
{
if (port_num == CHRK_SB_PGD_PORT_TX1_FM ||
port_num == CHRK_SB_PGD_PORT_TX2_FM)
return 1;
else
return 0;
}
int btfm_slim_chrk_enable_port(struct btfmslim *btfmslim, uint8_t port_num,
uint8_t rxport, uint8_t enable)
@ -88,9 +96,7 @@ int btfm_slim_chrk_enable_port(struct btfmslim *btfmslim, uint8_t port_num,
goto enable_disable_txport;
/* Multiple Channel Setting - only for FM Tx */
if (port_num == CHRK_SB_PGD_PORT_TX1_FM ||
port_num == CHRK_SB_PGD_PORT_TX2_FM) {
if (is_fm_port(port_num)) {
reg_val = (0x1 << CHRK_SB_PGD_PORT_TX1_FM) |
(0x1 << CHRK_SB_PGD_PORT_TX2_FM);
reg = CHRK_SB_PGD_TX_PORTn_MULTI_CHNL_0(port_num);
@ -116,10 +122,14 @@ enable_disable_txport:
reg = CHRK_SB_PGD_PORT_TX_CFGN(port_num);
enable_disable_rxport:
if (enable)
/* Set water mark to 1 and enable the port */
reg_val = CHRK_SB_PGD_PORT_ENABLE | CHRK_SB_PGD_PORT_WM_LB;
if (enable) {
if (is_fm_port(port_num))
reg_val = CHRK_SB_PGD_PORT_ENABLE |
CHRK_SB_PGD_PORT_WM_L3;
else
reg_val = CHRK_SB_PGD_PORT_ENABLE |
CHRK_SB_PGD_PORT_WM_LB;
} else
reg_val = CHRK_SB_PGD_PORT_DISABLE;
ret = btfm_slim_write(btfmslim, reg, 1, &reg_val, IFD);