- 根目录:
- drivers
- media
- pci
- bt8xx
- bttv-audio-hook.c
/*
* Handlers for board audio hooks, splitted from bttv-cards
*
* Copyright (c) 2006 Mauro Carvalho Chehab (mchehab@infradead.org)
* This code is placed under the terms of the GNU General Public License
*/
#include "bttv-audio-hook.h"
#include <linux/delay.h>
/* ----------------------------------------------------------------------- */
/* winview */
void winview_volume(struct bttv *btv, __u16 volume)
{
/* PT2254A programming Jon Tombs, jon@gte.esi.us.es */
int bits_out, loops, vol, data;
/* 32 levels logarithmic */
vol = 32 - ((volume>>11));
/* units */
bits_out = (PT2254_DBS_IN_2>>(vol%5));
/* tens */
bits_out |= (PT2254_DBS_IN_10>>(vol/5));
bits_out |= PT2254_L_CHANNEL | PT2254_R_CHANNEL;
data = gpio_read();
data &= ~(WINVIEW_PT2254_CLK| WINVIEW_PT2254_DATA|
WINVIEW_PT2254_STROBE);
for (loops = 17; loops >= 0 ; loops--) {
if (bits_out & (1<<loops))
data |= WINVIEW_PT2254_DATA;
else
data &= ~WINVIEW_PT2254_DATA;
gpio_write(data);
udelay(5);
data |= WINVIEW_PT2254_CLK;
gpio_write(data);
udelay(5);
data &= ~WINVIEW_PT2254_CLK;
gpio_write(data);
}
data |= WINVIEW_PT2254_STROBE;
data &= ~WINVIEW_PT2254_DATA;
gpio_write(data);
udelay(10);
data &= ~WINVIEW_PT2254_STROBE;
gpio_write(data);
}
/* ----------------------------------------------------------------------- */
/* mono/stereo control for various cards (which don't use i2c chips but */
/* connect something to the GPIO pins */
void gvbctv3pci_audio(struct bttv *btv, struct v4l2_tuner *t, int set)
{
unsigned int con = 0;
if (set) {
gpio_inout(0x300, 0x300);
if (t->audmode & V4L2_TUNER_MODE_LANG1)
con = 0x000;
if (t->audmode & V4L2_TUNER_MODE_LANG2)
con = 0x300;
if (t->audmode & V4L2_TUNER_MODE_STEREO)
con = 0x200;
/* if (t->audmode & V4L2_TUNER_MODE_MONO)
* con = 0x100; */
gpio_bits(0x300, con);
} else {
t->audmode = V4L2_TUNER_MODE_STEREO |
V4L2_TUNER_MODE_LANG1 | V4L2_TUNER_MODE_LANG2;
}
}
void gvbctv5pci_audio(struct bttv *btv, struct v4l2_tuner *t, int set)
{
unsigned int val, con;
if (btv->radio_user)
return;
val = gpio_read();
if (set) {
con = 0x000;
if (t->audmode & V4L2_TUNER_MODE_LANG2) {
if (t->audmode & V4L2_TUNER_MODE_LANG1) {
/* LANG1 + LANG2 */
con = 0x100;
}
else {
/* LANG2 */
con = 0x300;
}
}
if (con != (val & 0x300)) {
gpio_bits(0x300, con);
if (bttv_gpio)
bttv_gpio_tracking(btv,"gvbctv5pci");
}
} else {
switch (val & 0x70) {
case 0x10:
t->rxsubchans = V4L2_TUNER_SUB_LANG1 | V4L2_TUNER_SUB_LANG2;
break;
case 0x30:
t->rxsubchans = V4L2_TUNER_SUB_LANG2;
break;
case 0x50:
t->rxsubchans = V4L2_TUNER_SUB_LANG1;
break;
case 0x60:
t->rxsubchans = V4L2_TUNER_SUB_STEREO;
break;
case 0x70:
t->rxsubchans = V4L2_TUNER_SUB_MONO;
break;
default:
t->rxsubchans = V4L2_TUNER_SUB_MONO |
V4L2_TUNER_SUB_STEREO |
V4L2_TUNER_SUB_LANG1 |
V4L2_TUNER_SUB_LANG2;
}
t->audmode = V4L2_TUNER_MODE_STEREO |
V4L2_TUNER_MODE_LANG1 | V4L2_TUNER_MODE_LANG2;
}
}
/*
* Mario Medina Nussbaum <medisoft@alohabbs.org.mx>
* I discover that on BT848_GPIO_DATA address a byte 0xcce enable stereo,
* 0xdde enables mono and 0xccd enables sap
*
* Petr Vandrovec <VANDROVE@vc.cvut.cz>
* P.S.: At least mask in line above is wrong - GPIO pins 3,2 select
* input/output sound connection, so both must be set for output mode.
*
* Looks like it's needed only for the "tvphone", the "tvphone 98"
* handles this with a tda9840
*
*/
void avermedia_tvphone_audio(struct bttv *btv, struct v4l2_tuner *t, int set)
{
int val = 0;
if (set) {
if (t->audmode & V4L2_TUNER_MODE_LANG2) /* SAP */
val = 0x02;
if (t->audmode & V4L2_TUNER_MODE_STEREO)
val = 0x01;
if (val) {
gpio_bits(0x03,val);
if (bttv_gpio)
bttv_gpio_tracking(btv,"avermedia");
}
} else {
t->audmode = V4L2_TUNER_MODE_MONO | V4L2_TUNER_MODE_STEREO |
V4L2_TUNER_MODE_LANG1;
return;
}
}
void avermedia_tv_stereo_audio(struct bttv *btv, struct v4l2_tuner *t, int set)
{
int val = 0;
if (set) {
if (t->audmode & V4L2_TUNER_MODE_LANG2) /* SAP */
val = 0x01;
if (t->audmode & V4L2_TUNER_MODE_STEREO) /* STEREO */
val = 0x02;
btaor(val, ~0x03, BT848_GPIO_DATA);
if (bttv_gpio)
bttv_gpio_tracking(btv,"avermedia");
} else {
t->audmode = V4L2_TUNER_MODE_MONO | V4L2_TUNER_MODE_STEREO |
V4L2_TUNER_MODE_LANG1 | V4L2_TUNER_MODE_LANG2;
return;
}
}
/* Lifetec 9415 handling */
void lt9415_audio(struct bttv *btv, struct v4l2_tuner *t, int set)
{
int val = 0;
if (gpio_read() & 0x4000) {
t->audmode = V4L2_TUNER_MODE_MONO;
return;
}
if (set) {
if (t->audmode & V4L2_TUNER_MODE_LANG2) /* A2 SAP */
val = 0x0080;
if (t->audmode & V4L2_TUNER_MODE_STEREO) /* A2 stereo */
val = 0x0880;
if ((t->audmode & V4L2_TUNER_MODE_LANG1) ||
(t->audmode & V4L2_TUNER_MODE_MONO))
val = 0;
gpio_bits(0x0880, val);
if (bttv_gpio)
bttv_gpio_tracking(btv,"lt9415");
} else {
/* autodetect doesn't work with this card :-( */
t->audmode = V4L2_TUNER_MODE_MONO | V4L2_TUNER_MODE_STEREO |
V4L2_TUNER_MODE_LANG1 | V4L2_TUNER_MODE_LANG2;
return;
}
}
/* TDA9821 on TerraTV+ Bt848, Bt878 */
void terratv_audio(struct bttv *btv, struct v4l2_tuner *t, int set)
{
unsigned int con = 0;
if (set) {
gpio_inout(0x180000,0x180000);
if (t->audmode & V4L2_TUNER_MODE_LANG2)
con = 0x080000;
if (t->audmode & V4L2_TUNER_MODE_STEREO)
con = 0x180000;
gpio_bits(0x180000, con);
if (bttv_gpio)
bttv_gpio_tracking(btv,"terratv");
} else {
t->audmode = V4L2_TUNER_MODE_MONO | V4L2_TUNER_MODE_STEREO |
V4L2_TUNER_MODE_LANG1 | V4L2_TUNER_MODE_LANG2;
}
}
void winfast2000_audio(struct bttv *btv, struct v4l2_tuner *t, int set)
{
unsigned long val = 0;
if (set) {
/*btor (0xc32000, BT848_GPIO_OUT_EN);*/
if (t->audmode & V4L2_TUNER_MODE_MONO) /* Mono */
val = 0x420000;
if (t->audmode & V4L2_TUNER_MODE_LANG1) /* Mono */
val = 0x420000;
if (t->audmode & V4L2_TUNER_MODE_LANG2) /* SAP */
val = 0x410000;
if (t->audmode & V4L2_TUNER_MODE_STEREO) /* Stereo */
val = 0x020000;
if (val) {
gpio_bits(0x430000, val);
if (bttv_gpio)
bttv_gpio_tracking(btv,"winfast2000");
}
} else {
t->audmode = V4L2_TUNER_MODE_MONO | V4L2_TUNER_MODE_STEREO |
V4L2_TUNER_MODE_LANG1 | V4L2_TUNER_MODE_LANG2;
}
}
/*
* Dariusz Kowalewski <darekk@automex.pl>
* sound control for Prolink PV-BT878P+9B (PixelView PlayTV Pro FM+NICAM
* revision 9B has on-board TDA9874A sound decoder).
*
* Note: There are card variants without tda9874a. Forcing the "stereo sound route"
* will mute this cards.
*/
void pvbt878p9b_audio(struct bttv *btv, struct v4l2_tuner *t, int set)
{
unsigned int val = 0;
if (btv->radio_user)
return;
if (set) {
if (t->audmode & V4L2_TUNER_MODE_MONO) {
val = 0x01;
}
if ((t->audmode & (V4L2_TUNER_MODE_LANG1 | V4L2_TUNER_MODE_LANG2))
|| (t->audmode & V4L2_TUNER_MODE_STEREO)) {
val = 0x02;
}
if (val) {
gpio_bits(0x03,val);
if (bttv_gpio)
bttv_gpio_tracking(btv,"pvbt878p9b");
}
} else {
t->audmode = V4L2_TUNER_MODE_MONO | V4L2_TUNER_MODE_STEREO |
V4L2_TUNER_MODE_LANG1 | V4L2_TUNER_MODE_LANG2;
}
}
/*
* Dariusz Kowalewski <darekk@automex.pl>
* sound control for FlyVideo 2000S (with tda9874 decoder)
* based on pvbt878p9b_audio() - this is not tested, please fix!!!
*/
void fv2000s_audio(struct bttv *btv, struct v4l2_tuner *t, int set)
{
unsigned int val = 0xffff;
if (btv->radio_user)
return;
if (set) {
if (t->audmode & V4L2_TUNER_MODE_MONO) {
val = 0x0000;
}
if ((t->audmode & (V4L2_TUNER_MODE_LANG1 | V4L2_TUNER_MODE_LANG2))
|| (t->audmode & V4L2_TUNER_MODE_STEREO)) {
val = 0x1080; /*-dk-???: 0x0880, 0x0080, 0x1800 ... */
}
if (val != 0xffff) {
gpio_bits(0x1800, val);
if (bttv_gpio)
bttv_gpio_tracking(btv,"fv2000s");
}
} else {
t->audmode = V4L2_TUNER_MODE_MONO | V4L2_TUNER_MODE_STEREO |
V4L2_TUNER_MODE_LANG1 | V4L2_TUNER_MODE_LANG2;
}
}
/*
* sound control for Canopus WinDVR PCI
* Masaki Suzuki <masaki@btree.org>
*/
void windvr_audio(struct bttv *btv, struct v4l2_tuner *t, int set)
{
unsigned long val = 0;
if (set) {
if (t->audmode & V4L2_TUNER_MODE_MONO)
val = 0x040000;
if (t->audmode & V4L2_TUNER_MODE_LANG1)
val = 0;
if (t->audmode & V4L2_TUNER_MODE_LANG2)
val = 0x100000;
if (t->audmode & V4L2_TUNER_MODE_STEREO)
val = 0;
if (val) {
gpio_bits(0x140000, val);
if (bttv_gpio)
bttv_gpio_tracking(btv,"windvr");
}
} else {
t->audmode = V4L2_TUNER_MODE_MONO | V4L2_TUNER_MODE_STEREO |
V4L2_TUNER_MODE_LANG1 | V4L2_TUNER_MODE_LANG2;
}
}
/*
* sound control for AD-TVK503
* Hiroshi Takekawa <sian@big.or.jp>
*/
void adtvk503_audio(struct bttv *btv, struct v4l2_tuner *t, int set)
{
unsigned int con = 0xffffff;
/* btaor(0x1e0000, ~0x1e0000, BT848_GPIO_OUT_EN); */
if (set) {
/* btor(***, BT848_GPIO_OUT_EN); */
if (t->audmode & V4L2_TUNER_MODE_LANG1)
con = 0x00000000;
if (t->audmode & V4L2_TUNER_MODE_LANG2)
con = 0x00180000;
if (t->audmode & V4L2_TUNER_MODE_STEREO)
con = 0x00000000;
if (t->audmode & V4L2_TUNER_MODE_MONO)
con = 0x00060000;
if (con != 0xffffff) {
gpio_bits(0x1e0000,con);
if (bttv_gpio)
bttv_gpio_tracking(btv, "adtvk503");
}
} else {
t->audmode = V4L2_TUNER_MODE_MONO | V4L2_TUNER_MODE_STEREO |
V4L2_TUNER_MODE_LANG1 | V4L2_TUNER_MODE_LANG2;
}
}