static struct snd_pt2258 ptc_revo51_volume;
 
+/* AK4358 for AP192 DAC, AK5385A for ADC */
+static void ap192_set_rate_val(struct snd_akm4xxx *ak, unsigned int rate)
+{
+       struct snd_ice1712 *ice = ak->private_data[0];
+
+       revo_set_rate_val(ak, rate);
+
+#if 1 /* FIXME: do we need this procedure? */
+       /* reset DFS pin of AK5385A for ADC, too */
+       /* DFS0 (pin 18) -- GPIO10 pin 77 */
+       snd_ice1712_save_gpio_status(ice);
+       snd_ice1712_gpio_write_bits(ice, 1 << 10,
+                                   rate > 48000 ? (1 << 10) : 0);
+       snd_ice1712_restore_gpio_status(ice);
+#endif
+}
+
+static struct snd_akm4xxx_dac_channel ap192_dac[] = {
+       AK_DAC("PCM Playback Volume", 2)
+};
+
+static struct snd_akm4xxx akm_ap192 __devinitdata = {
+       .type = SND_AK4358,
+       .num_dacs = 2,
+       .ops = {
+               .set_rate_val = ap192_set_rate_val
+       },
+       .dac_info = ap192_dac,
+};
+
+static struct snd_ak4xxx_private akm_ap192_priv __devinitdata = {
+       .caddr = 2,
+       .cif = 0,
+       .data_mask = VT1724_REVO_CDOUT,
+       .clk_mask = VT1724_REVO_CCLK,
+       .cs_mask = VT1724_REVO_CS0 | VT1724_REVO_CS3,
+       .cs_addr = VT1724_REVO_CS3,
+       .cs_none = VT1724_REVO_CS0 | VT1724_REVO_CS3,
+       .add_flags = VT1724_REVO_CCLK, /* high at init */
+       .mask_flags = 0,
+};
+
+#if 0
+/* FIXME: ak4114 makes the sound much lower due to some confliction,
+ *        so let's disable it right now...
+ */
+#define BUILD_AK4114_AP192
+#endif
+
+#ifdef BUILD_AK4114_AP192
+/* AK4114 support on Audiophile 192 */
+/* CDTO (pin 32) -- GPIO2 pin 52
+ * CDTI (pin 33) -- GPIO3 pin 53 (shared with AK4358)
+ * CCLK (pin 34) -- GPIO1 pin 51 (shared with AK4358)
+ * CSN  (pin 35) -- GPIO7 pin 59
+ */
+#define AK4114_ADDR    0x00
+
+static void write_data(struct snd_ice1712 *ice, unsigned int gpio,
+                      unsigned int data, int idx)
+{
+       for (; idx >= 0; idx--) {
+               /* drop clock */
+               gpio &= ~VT1724_REVO_CCLK;
+               snd_ice1712_gpio_write(ice, gpio);
+               udelay(1);
+               /* set data */
+               if (data & (1 << idx))
+                       gpio |= VT1724_REVO_CDOUT;
+               else
+                       gpio &= ~VT1724_REVO_CDOUT;
+               snd_ice1712_gpio_write(ice, gpio);
+               udelay(1);
+               /* raise clock */
+               gpio |= VT1724_REVO_CCLK;
+               snd_ice1712_gpio_write(ice, gpio);
+               udelay(1);
+       }
+}
+
+static unsigned char read_data(struct snd_ice1712 *ice, unsigned int gpio,
+                              int idx)
+{
+       unsigned char data = 0;
+
+       for (; idx >= 0; idx--) {
+               /* drop clock */
+               gpio &= ~VT1724_REVO_CCLK;
+               snd_ice1712_gpio_write(ice, gpio);
+               udelay(1);
+               /* read data */
+               if (snd_ice1712_gpio_read(ice) & VT1724_REVO_CDIN)
+                       data |= (1 << idx);
+               udelay(1);
+               /* raise clock */
+               gpio |= VT1724_REVO_CCLK;
+               snd_ice1712_gpio_write(ice, gpio);
+               udelay(1);
+       }
+       return data;
+}
+
+static unsigned char ap192_4wire_start(struct snd_ice1712 *ice)
+{
+       unsigned int tmp;
+
+       snd_ice1712_save_gpio_status(ice);
+       tmp = snd_ice1712_gpio_read(ice);
+       tmp |= VT1724_REVO_CCLK; /* high at init */
+       tmp |= VT1724_REVO_CS0;
+       tmp &= ~VT1724_REVO_CS3;
+       snd_ice1712_gpio_write(ice, tmp);
+       udelay(1);
+       return tmp;
+}
+
+static void ap192_4wire_finish(struct snd_ice1712 *ice, unsigned int tmp)
+{
+       tmp |= VT1724_REVO_CS3;
+       tmp |= VT1724_REVO_CS0;
+       snd_ice1712_gpio_write(ice, tmp);
+       udelay(1);
+       snd_ice1712_restore_gpio_status(ice);
+}
+
+static void ap192_ak4114_write(void *private_data, unsigned char addr,
+                              unsigned char data)
+{
+       struct snd_ice1712 *ice = private_data;
+       unsigned int tmp, addrdata;
+
+       tmp = ap192_4wire_start(ice);
+       addrdata = (AK4114_ADDR << 6) | 0x20 | (addr & 0x1f);
+       addrdata = (addrdata << 8) | data;
+       write_data(ice, tmp, addrdata, 15);
+       ap192_4wire_finish(ice, tmp);
+}
+
+static unsigned char ap192_ak4114_read(void *private_data, unsigned char addr)
+{
+       struct snd_ice1712 *ice = private_data;
+       unsigned int tmp;
+       unsigned char data;
+
+       tmp = ap192_4wire_start(ice);
+       write_data(ice, tmp, (AK4114_ADDR << 6) | (addr & 0x1f), 7);
+       data = read_data(ice, tmp, 7);
+       ap192_4wire_finish(ice, tmp);
+       return data;
+}
+
+static int ap192_ak4114_init(struct snd_ice1712 *ice)
+{
+       static unsigned char ak4114_init_vals[] = {
+               AK4114_RST | AK4114_PWN | AK4114_OCKS0 | AK4114_OCKS1,
+               AK4114_DIF_I24I2S,
+               AK4114_TX1E,
+               AK4114_EFH_1024 | AK4114_DIT | AK4114_IPS(1),
+               0,
+               0
+       };
+       static unsigned char ak4114_init_txcsb[] = {
+               0x41, 0x02, 0x2c, 0x00, 0x00
+       };
+       struct ak4114 *ak;
+       int err;
+
+       return snd_ak4114_create(ice->card,
+                                ap192_ak4114_read,
+                                ap192_ak4114_write,
+                                ak4114_init_vals, ak4114_init_txcsb,
+                                ice, &ak);
+}
+#endif /* BUILD_AK4114_AP192 */
+
 static int __devinit revo_init(struct snd_ice1712 *ice)
 {
        struct snd_akm4xxx *ak;
                ice->num_total_dacs = 6;
                ice->num_total_adcs = 2;
                break;
+       case VT1724_SUBDEVICE_AUDIOPHILE192:
+               ice->num_total_dacs = 2;
+               ice->num_total_adcs = 2;
+               break;
        default:
                snd_BUG();
                return -EINVAL;
                snd_ice1712_gpio_write_bits(ice, VT1724_REVO_MUTE,
                                            VT1724_REVO_MUTE);
                break;
+       case VT1724_SUBDEVICE_AUDIOPHILE192:
+               ice->akm_codecs = 1;
+               err = snd_ice1712_akm4xxx_init(ak, &akm_ap192, &akm_ap192_priv,
+                                              ice);
+               if (err < 0)
+                       return err;
+               
+               break;
        }
 
        return 0;
                if (err < 0)
                        return err;
                break;
+       case VT1724_SUBDEVICE_AUDIOPHILE192:
+               err = snd_ice1712_akm4xxx_build_controls(ice);
+               if (err < 0)
+                       return err;
+#ifdef BUILD_AK4114_AP192
+               err = ap192_ak4114_init(ice);
+               if (err < 0)
+                       return err;
+#endif
+               break;
        }
        return 0;
 }
                .chip_init = revo_init,
                .build_controls = revo_add_controls,
        },
+       {
+               .subvendor = VT1724_SUBDEVICE_AUDIOPHILE192,
+               .name = "M Audio Audiophile192",
+               .model = "ap192",
+               .chip_init = revo_init,
+               .build_controls = revo_add_controls,
+       },
        { } /* terminator */
 };