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V4L/DVB (4219): Av7110: analog sound output of DVB-C rev 2.3
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Added support for the msp34x5 audio dac. Analog sound output of
Technotrend DVB-C 2300 (aka Hauppauge Nexus-CA) works now.

Signed-off-by: Tim Kaiser <timkaiser@t-online.de>
Signed-off-by: Marco Schluessler <marco@lordzodiac.de>
Signed-off-by: Oliver Endriss <o.endriss@gmx.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
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Tim Kaiser authored and Mauro Carvalho Chehab committed Jun 26, 2006
1 parent 4a4edcc commit 61391e0
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Showing 3 changed files with 64 additions and 19 deletions.
8 changes: 2 additions & 6 deletions drivers/media/dvb/ttpci/av7110.c
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Original file line number Diff line number Diff line change
Expand Up @@ -152,13 +152,9 @@ static void init_av7110_av(struct av7110 *av7110)
/* remaining inits according to card and frontend type */
av7110->analog_tuner_flags = 0;
av7110->current_input = 0;
if (dev->pci->subsystem_vendor == 0x13c2 && dev->pci->subsystem_device == 0x000a) {
printk("dvb-ttpci: MSP3415 audio DAC @ card %d\n",
av7110->dvb_adapter.num);
av7110->adac_type = DVB_ADAC_MSP34x5;
if (dev->pci->subsystem_vendor == 0x13c2 && dev->pci->subsystem_device == 0x000a)
av7110_fw_cmd(av7110, COMTYPE_AUDIODAC, ADSwitch, 1, 0); // SPDIF on
}
else if (i2c_writereg(av7110, 0x20, 0x00, 0x00) == 1) {
if (i2c_writereg(av7110, 0x20, 0x00, 0x00) == 1) {
printk ("dvb-ttpci: Crystal audio DAC @ card %d detected\n",
av7110->dvb_adapter.num);
av7110->adac_type = DVB_ADAC_CRYSTAL;
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25 changes: 22 additions & 3 deletions drivers/media/dvb/ttpci/av7110_av.c
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Original file line number Diff line number Diff line change
Expand Up @@ -318,7 +318,17 @@ int av7110_set_volume(struct av7110 *av7110, int volleft, int volright)
msp_writereg(av7110, MSP_WR_DSP, 0x0000, val); /* loudspeaker */
msp_writereg(av7110, MSP_WR_DSP, 0x0006, val); /* headphonesr */
return 0;

case DVB_ADAC_MSP34x5:
vol = (volleft > volright) ? volleft : volright;
val = (vol * 0x73 / 255) << 8;
if (vol > 0)
balance = ((volright - volleft) * 127) / vol;
msp_writereg(av7110, MSP_WR_DSP, 0x0001, balance << 8);
msp_writereg(av7110, MSP_WR_DSP, 0x0000, val); /* loudspeaker */
return 0;
}

return 0;
}

Expand Down Expand Up @@ -1267,23 +1277,32 @@ static int dvb_audio_ioctl(struct inode *inode, struct file *file,
switch(av7110->audiostate.channel_select) {
case AUDIO_STEREO:
ret = audcom(av7110, AUDIO_CMD_STEREO);
if (!ret)
if (!ret) {
if (av7110->adac_type == DVB_ADAC_CRYSTAL)
i2c_writereg(av7110, 0x20, 0x02, 0x49);
else if (av7110->adac_type == DVB_ADAC_MSP34x5)
msp_writereg(av7110, MSP_WR_DSP, 0x0008, 0x0220);
}
break;

case AUDIO_MONO_LEFT:
ret = audcom(av7110, AUDIO_CMD_MONO_L);
if (!ret)
if (!ret) {
if (av7110->adac_type == DVB_ADAC_CRYSTAL)
i2c_writereg(av7110, 0x20, 0x02, 0x4a);
else if (av7110->adac_type == DVB_ADAC_MSP34x5)
msp_writereg(av7110, MSP_WR_DSP, 0x0008, 0x0200);
}
break;

case AUDIO_MONO_RIGHT:
ret = audcom(av7110, AUDIO_CMD_MONO_R);
if (!ret)
if (!ret) {
if (av7110->adac_type == DVB_ADAC_CRYSTAL)
i2c_writereg(av7110, 0x20, 0x02, 0x45);
else if (av7110->adac_type == DVB_ADAC_MSP34x5)
msp_writereg(av7110, MSP_WR_DSP, 0x0008, 0x0210);
}
break;

default:
Expand Down
50 changes: 40 additions & 10 deletions drivers/media/dvb/ttpci/av7110_v4l.c
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Original file line number Diff line number Diff line change
Expand Up @@ -42,7 +42,18 @@
int msp_writereg(struct av7110 *av7110, u8 dev, u16 reg, u16 val)
{
u8 msg[5] = { dev, reg >> 8, reg & 0xff, val >> 8 , val & 0xff };
struct i2c_msg msgs = { .flags = 0, .addr = 0x40, .len = 5, .buf = msg };
struct i2c_msg msgs = { .flags = 0, .len = 5, .buf = msg };

switch (av7110->adac_type) {
case DVB_ADAC_MSP34x0:
msgs.addr = 0x40;
break;
case DVB_ADAC_MSP34x5:
msgs.addr = 0x42;
break;
default:
return 0;
}

if (i2c_transfer(&av7110->i2c_adap, &msgs, 1) != 1) {
dprintk(1, "dvb-ttpci: failed @ card %d, %u = %u\n",
Expand All @@ -57,10 +68,23 @@ static int msp_readreg(struct av7110 *av7110, u8 dev, u16 reg, u16 *val)
u8 msg1[3] = { dev, reg >> 8, reg & 0xff };
u8 msg2[2];
struct i2c_msg msgs[2] = {
{ .flags = 0, .addr = 0x40, .len = 3, .buf = msg1 },
{ .flags = I2C_M_RD, .addr = 0x40, .len = 2, .buf = msg2 }
{ .flags = 0 , .len = 3, .buf = msg1 },
{ .flags = I2C_M_RD, .len = 2, .buf = msg2 }
};

switch (av7110->adac_type) {
case DVB_ADAC_MSP34x0:
msgs[0].addr = 0x40;
msgs[1].addr = 0x40;
break;
case DVB_ADAC_MSP34x5:
msgs[0].addr = 0x42;
msgs[1].addr = 0x42;
break;
default:
return 0;
}

if (i2c_transfer(&av7110->i2c_adap, &msgs[0], 2) != 2) {
dprintk(1, "dvb-ttpci: failed @ card %d, %u\n",
av7110->dvb_adapter.num, reg);
Expand Down Expand Up @@ -678,17 +702,23 @@ int av7110_init_analog_module(struct av7110 *av7110)
{
u16 version1, version2;

if (i2c_writereg(av7110, 0x80, 0x0, 0x80) != 1
|| i2c_writereg(av7110, 0x80, 0x0, 0) != 1)
if (i2c_writereg(av7110, 0x80, 0x0, 0x80) == 1 &&
i2c_writereg(av7110, 0x80, 0x0, 0) == 1) {
printk("dvb-ttpci: DVB-C analog module @ card %d detected, initializing MSP3400\n",
av7110->dvb_adapter.num);
av7110->adac_type = DVB_ADAC_MSP34x0;
} else if (i2c_writereg(av7110, 0x84, 0x0, 0x80) == 1 &&
i2c_writereg(av7110, 0x84, 0x0, 0) == 1) {
printk("dvb-ttpci: DVB-C analog module @ card %d detected, initializing MSP3415\n",
av7110->dvb_adapter.num);
av7110->adac_type = DVB_ADAC_MSP34x5;
} else
return -ENODEV;

printk("dvb-ttpci: DVB-C analog module @ card %d detected, initializing MSP3400\n",
av7110->dvb_adapter.num);
av7110->adac_type = DVB_ADAC_MSP34x0;
msleep(100); // the probing above resets the msp...
msp_readreg(av7110, MSP_RD_DSP, 0x001e, &version1);
msp_readreg(av7110, MSP_RD_DSP, 0x001f, &version2);
dprintk(1, "dvb-ttpci: @ card %d MSP3400 version 0x%04x 0x%04x\n",
dprintk(1, "dvb-ttpci: @ card %d MSP34xx version 0x%04x 0x%04x\n",
av7110->dvb_adapter.num, version1, version2);
msp_writereg(av7110, MSP_WR_DSP, 0x0013, 0x0c00);
msp_writereg(av7110, MSP_WR_DSP, 0x0000, 0x7f00); // loudspeaker + headphone
Expand All @@ -697,7 +727,7 @@ int av7110_init_analog_module(struct av7110 *av7110)
msp_writereg(av7110, MSP_WR_DSP, 0x0004, 0x7f00); // loudspeaker volume
msp_writereg(av7110, MSP_WR_DSP, 0x000a, 0x0220); // SCART 1 source
msp_writereg(av7110, MSP_WR_DSP, 0x0007, 0x7f00); // SCART 1 volume
msp_writereg(av7110, MSP_WR_DSP, 0x000d, 0x4800); // prescale SCART
msp_writereg(av7110, MSP_WR_DSP, 0x000d, 0x1900); // prescale SCART

if (i2c_writereg(av7110, 0x48, 0x01, 0x00)!=1) {
INFO(("saa7113 not accessible.\n"));
Expand Down

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