V4L/DVB (4219): Av7110: analog sound output of DVB-C rev 2.3

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>

diff --git a/drivers/media/dvb/ttpci/av7110.c b/drivers/media/dvb/ttpci/av7110.c
index 8832f80..7a5c99c 100644 (file)
--- a/drivers/media/dvb/ttpci/av7110.c
+++ b/drivers/media/dvb/ttpci/av7110.c
@@ -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;

diff --git a/drivers/media/dvb/ttpci/av7110_av.c b/drivers/media/dvb/ttpci/av7110_av.c
index 2eff09f..0f3a044 100644 (file)
--- a/drivers/media/dvb/ttpci/av7110_av.c
+++ b/drivers/media/dvb/ttpci/av7110_av.c
@@ -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;
 }
 
@@ -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:

diff --git a/drivers/media/dvb/ttpci/av7110_v4l.c b/drivers/media/dvb/ttpci/av7110_v4l.c
index 603a22e..6405546 100644 (file)
--- a/drivers/media/dvb/ttpci/av7110_v4l.c
+++ b/drivers/media/dvb/ttpci/av7110_v4l.c
@@ -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",
@@ -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);
@@ -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
@@ -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"));