[ALSA] ice1724 - Improved the Juli rate setting

* moving most of clock-specific code to card-specific routines
* support for ESI Juli
* to-be-researched - monitoring of analog/digital inputs

Signed-off-by: Pavel Hofman <dustin@seznam.cz>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

1 files changed, 440 insertions, 31 deletions

diff --git a/sound/pci/ice1712/juli.c b/sound/pci/ice1712/juli.c
index 4550609b4d47..b4e0c16852a6 100644
--- a/sound/pci/ice1712/juli.c
+++ b/sound/pci/ice1712/juli.c
@@ -4,6 +4,8 @@
  *   Lowlevel functions for ESI Juli@ cards
  *
  *	Copyright (c) 2004 Jaroslav Kysela <perex@perex.cz>
+ *	              2008 Pavel Hofman <dustin@seznam.cz>
+ *
  *
  *   This program is free software; you can redistribute it and/or modify
  *   it under the terms of the GNU General Public License as published by
@@ -27,11 +29,11 @@
 #include <linux/init.h>
 #include <linux/slab.h>
 #include <sound/core.h>
+#include <sound/tlv.h>
 
 #include "ice1712.h"
 #include "envy24ht.h"
 #include "juli.h"
-
 struct juli_spec {
 	struct ak4114 *ak4114;
 	unsigned int analog: 1;
@@ -44,6 +46,32 @@ struct juli_spec {
 #define AK4358_ADDR		0x22		/* DAC */
 
 /*
+ * Juli does not use the standard ICE1724 clock scheme. Juli's ice1724 chip is
+ * supplied by external clock provided by Xilinx array and MK73-1 PLL frequency
+ * multiplier. Actual frequency is set by ice1724 GPIOs hooked to the Xilinx.
+ *
+ * The clock circuitry is supplied by the two ice1724 crystals. This
+ * arrangement allows to generate independent clock signal for AK4114's input
+ * rate detection circuit. As a result, Juli, unlike most other
+ * ice1724+ak4114-based cards, detects spdif input rate correctly.
+ * This fact is applied in the driver, allowing to modify PCM stream rate
+ * parameter according to the actual input rate.
+ *
+ * Juli uses the remaining three stereo-channels of its DAC to optionally
+ * monitor analog input, digital input, and digital output. The corresponding
+ * I2S signals are routed by Xilinx, controlled by GPIOs.
+ *
+ * The master mute is implemented using output muting transistors (GPIO) in
+ * combination with smuting the DAC.
+ *
+ * The card itself has no HW master volume control, implemented using the
+ * vmaster control.
+ *
+ * TODO:
+ * researching and fixing the input monitors
+ */
+
+/*
  * GPIO pins
  */
 #define GPIO_FREQ_MASK		(3<<0)
@@ -55,17 +83,82 @@ struct juli_spec {
 #define GPIO_MULTI_2X		(1<<2)
 #define GPIO_MULTI_1X		(2<<2)		/* also external */
 #define GPIO_MULTI_HALF		(3<<2)
-#define GPIO_INTERNAL_CLOCK	(1<<4)
+#define GPIO_INTERNAL_CLOCK	(1<<4)		/* 0 = external, 1 = internal */
+#define GPIO_CLOCK_MASK		(1<<4)
 #define GPIO_ANALOG_PRESENT	(1<<5)		/* RO only: 0 = present */
 #define GPIO_RXMCLK_SEL		(1<<7)		/* must be 0 */
 #define GPIO_AK5385A_CKS0	(1<<8)
-#define GPIO_AK5385A_DFS0	(1<<9)		/* swapped with DFS1 according doc? */
-#define GPIO_AK5385A_DFS1	(1<<10)
+#define GPIO_AK5385A_DFS1	(1<<9)
+#define GPIO_AK5385A_DFS0	(1<<10)
 #define GPIO_DIGOUT_MONITOR	(1<<11)		/* 1 = active */
 #define GPIO_DIGIN_MONITOR	(1<<12)		/* 1 = active */
 #define GPIO_ANAIN_MONITOR	(1<<13)		/* 1 = active */
-#define GPIO_AK5385A_MCLK	(1<<14)		/* must be 0 */
-#define GPIO_MUTE_CONTROL	(1<<15)		/* 0 = off, 1 = on */
+#define GPIO_AK5385A_CKS1	(1<<14)		/* must be 0 */
+#define GPIO_MUTE_CONTROL	(1<<15)		/* output mute, 1 = muted */
+
+#define GPIO_RATE_MASK		(GPIO_FREQ_MASK | GPIO_MULTI_MASK | \
+		GPIO_CLOCK_MASK)
+#define GPIO_AK5385A_MASK	(GPIO_AK5385A_CKS0 | GPIO_AK5385A_DFS0 | \
+		GPIO_AK5385A_DFS1 | GPIO_AK5385A_CKS1)
+
+#define JULI_PCM_RATE	(SNDRV_PCM_RATE_16000 | SNDRV_PCM_RATE_22050 | \
+		SNDRV_PCM_RATE_32000 | SNDRV_PCM_RATE_44100 | \
+		SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_64000 | \
+		SNDRV_PCM_RATE_88200 | SNDRV_PCM_RATE_96000 | \
+		SNDRV_PCM_RATE_176400 | SNDRV_PCM_RATE_192000)
+
+#define GPIO_RATE_16000		(GPIO_FREQ_32KHZ | GPIO_MULTI_HALF | \
+		GPIO_INTERNAL_CLOCK)
+#define GPIO_RATE_22050		(GPIO_FREQ_44KHZ | GPIO_MULTI_HALF | \
+		GPIO_INTERNAL_CLOCK)
+#define GPIO_RATE_24000		(GPIO_FREQ_48KHZ | GPIO_MULTI_HALF | \
+		GPIO_INTERNAL_CLOCK)
+#define GPIO_RATE_32000		(GPIO_FREQ_32KHZ | GPIO_MULTI_1X | \
+		GPIO_INTERNAL_CLOCK)
+#define GPIO_RATE_44100		(GPIO_FREQ_44KHZ | GPIO_MULTI_1X | \
+		GPIO_INTERNAL_CLOCK)
+#define GPIO_RATE_48000		(GPIO_FREQ_48KHZ | GPIO_MULTI_1X | \
+		GPIO_INTERNAL_CLOCK)
+#define GPIO_RATE_64000		(GPIO_FREQ_32KHZ | GPIO_MULTI_2X | \
+		GPIO_INTERNAL_CLOCK)
+#define GPIO_RATE_88200		(GPIO_FREQ_44KHZ | GPIO_MULTI_2X | \
+		GPIO_INTERNAL_CLOCK)
+#define GPIO_RATE_96000		(GPIO_FREQ_48KHZ | GPIO_MULTI_2X | \
+		GPIO_INTERNAL_CLOCK)
+#define GPIO_RATE_176400	(GPIO_FREQ_44KHZ | GPIO_MULTI_4X | \
+		GPIO_INTERNAL_CLOCK)
+#define GPIO_RATE_192000	(GPIO_FREQ_48KHZ | GPIO_MULTI_4X | \
+		GPIO_INTERNAL_CLOCK)
+
+/*
+ * Initial setup of the conversion array GPIO <-> rate
+ */
+static unsigned int juli_rates[] = {
+	16000, 22050, 24000, 32000,
+	44100, 48000, 64000, 88200,
+	96000, 176400, 192000,
+};
+
+static unsigned int gpio_vals[] = {
+	GPIO_RATE_16000, GPIO_RATE_22050, GPIO_RATE_24000, GPIO_RATE_32000,
+	GPIO_RATE_44100, GPIO_RATE_48000, GPIO_RATE_64000, GPIO_RATE_88200,
+	GPIO_RATE_96000, GPIO_RATE_176400, GPIO_RATE_192000,
+};
+
+static struct snd_pcm_hw_constraint_list juli_rates_info = {
+	.count = ARRAY_SIZE(juli_rates),
+	.list = juli_rates,
+	.mask = 0,
+};
+
+static int get_gpio_val(int rate)
+{
+	int i;
+	for (i = 0; i < ARRAY_SIZE(juli_rates); i++)
+		if (juli_rates[i] == rate)
+			return gpio_vals[i];
+	return 0;
+}
 
 static void juli_ak4114_write(void *private_data, unsigned char reg, unsigned char val)
 {
@@ -77,6 +170,10 @@ static unsigned char juli_ak4114_read(void *private_data, unsigned char reg)
 	return snd_vt1724_read_i2c((struct snd_ice1712 *)private_data, AK4114_ADDR, reg);
 }
 
+/*
+ * If SPDIF capture and slaved to SPDIF-IN, setting runtime rate
+ * to the external rate
+ */
 static void juli_spdif_in_open(struct snd_ice1712 *ice,
 			       struct snd_pcm_substream *substream)
 {
@@ -84,7 +181,8 @@ static void juli_spdif_in_open(struct snd_ice1712 *ice,
 	struct snd_pcm_runtime *runtime = substream->runtime;
 	int rate;
 
-	if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
+	if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK ||
+			!ice->is_spdif_master(ice))
 		return;
 	rate = snd_ak4114_external_rate(spec->ak4114);
 	if (rate >= runtime->hw.rate_min && rate <= runtime->hw.rate_max) {
@@ -115,57 +213,285 @@ static void juli_akm_write(struct snd_akm4xxx *ak, int chip,
 }
 
 /*
- * change the rate of envy24HT, AK4358
+ * change the rate of envy24HT, AK4358, AK5385
  */
 static void juli_akm_set_rate_val(struct snd_akm4xxx *ak, unsigned int rate)
 {
-	unsigned char old, tmp, dfs;
+	unsigned char old, tmp, ak4358_dfs;
+	unsigned int ak5385_pins, old_gpio, new_gpio;
+	struct snd_ice1712 *ice = ak->private_data[0];
+	struct juli_spec *spec = ice->spec;
 
-	if (rate == 0)  /* no hint - S/PDIF input is master, simply return */
+	if (rate == 0)  /* no hint - S/PDIF input is master or the new spdif
+			   input rate undetected, simply return */
 		return;
-	
+
 	/* adjust DFS on codecs */
-	if (rate > 96000) 
-		dfs = 2;
-	else if (rate > 48000)
-		dfs = 1;
-	else
-		dfs = 0;
-	
+	if (rate > 96000)  {
+		ak4358_dfs = 2;
+		ak5385_pins = GPIO_AK5385A_DFS1 | GPIO_AK5385A_CKS0;
+	} else if (rate > 48000) {
+		ak4358_dfs = 1;
+		ak5385_pins = GPIO_AK5385A_DFS0;
+	} else {
+		ak4358_dfs = 0;
+		ak5385_pins = 0;
+	}
+	/* AK5385 first, since it requires cold reset affecting both codecs */
+	old_gpio = ice->gpio.get_data(ice);
+	new_gpio =  (old_gpio & ~GPIO_AK5385A_MASK) | ak5385_pins;
+	/* printk(KERN_DEBUG "JULI - ak5385 set_rate_val: new gpio 0x%x\n",
+		new_gpio); */
+	ice->gpio.set_data(ice, new_gpio);
+
+	/* cold reset */
+	old = inb(ICEMT1724(ice, AC97_CMD));
+	outb(old | VT1724_AC97_COLD, ICEMT1724(ice, AC97_CMD));
+	udelay(1);
+	outb(old & ~VT1724_AC97_COLD, ICEMT1724(ice, AC97_CMD));
+
+	/* AK4358 */
+	/* set new value, reset DFS */
 	tmp = snd_akm4xxx_get(ak, 0, 2);
-	old = (tmp >> 4) & 0x03;
-	if (old == dfs)
-		return;
-	/* reset DFS */
 	snd_akm4xxx_reset(ak, 1);
 	tmp = snd_akm4xxx_get(ak, 0, 2);
 	tmp &= ~(0x03 << 4);
-	tmp |= dfs << 4;
+	tmp |= ak4358_dfs << 4;
 	snd_akm4xxx_set(ak, 0, 2, tmp);
 	snd_akm4xxx_reset(ak, 0);
+
+	/* reinit ak4114 */
+	snd_ak4114_reinit(spec->ak4114);
 }
 
+#define AK_DAC(xname, xch)	{ .name = xname, .num_channels = xch }
+#define PCM_VOLUME		"PCM Playback Volume"
+#define MONITOR_AN_IN_VOLUME	"Monitor Analog In Volume"
+#define MONITOR_DIG_IN_VOLUME	"Monitor Digital In Volume"
+#define MONITOR_DIG_OUT_VOLUME	"Monitor Digital Out Volume"
+
+static const struct snd_akm4xxx_dac_channel juli_dac[] = {
+	AK_DAC(PCM_VOLUME, 2),
+	AK_DAC(MONITOR_AN_IN_VOLUME, 2),
+	AK_DAC(MONITOR_DIG_OUT_VOLUME, 2),
+	AK_DAC(MONITOR_DIG_IN_VOLUME, 2),
+};
+
+
 static struct snd_akm4xxx akm_juli_dac __devinitdata = {
 	.type = SND_AK4358,
-	.num_dacs = 2,
+	.num_dacs = 8,	/* DAC1 - analog out
+			   DAC2 - analog in monitor
+			   DAC3 - digital out monitor
+			   DAC4 - digital in monitor
+			 */
 	.ops = {
 		.lock = juli_akm_lock,
 		.unlock = juli_akm_unlock,
 		.write = juli_akm_write,
 		.set_rate_val = juli_akm_set_rate_val
+	},
+	.dac_info = juli_dac,
+};
+
+#define juli_mute_info		snd_ctl_boolean_mono_info
+
+static int juli_mute_get(struct snd_kcontrol *kcontrol,
+		struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);
+	unsigned int val;
+	val = ice->gpio.get_data(ice) & (unsigned int) kcontrol->private_value;
+	if (kcontrol->private_value == GPIO_MUTE_CONTROL)
+		/* val 0 = signal on */
+		ucontrol->value.integer.value[0] = (val) ? 0 : 1;
+	else
+		/* val 1 = signal on */
+		ucontrol->value.integer.value[0] = (val) ? 1 : 0;
+	return 0;
+}
+
+static int juli_mute_put(struct snd_kcontrol *kcontrol,
+		struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);
+	unsigned int old_gpio, new_gpio;
+	old_gpio = ice->gpio.get_data(ice);
+	if (ucontrol->value.integer.value[0]) {
+		/* unmute */
+		if (kcontrol->private_value == GPIO_MUTE_CONTROL) {
+			/* 0 = signal on */
+			new_gpio = old_gpio & ~GPIO_MUTE_CONTROL;
+			/* un-smuting DAC */
+			snd_akm4xxx_write(ice->akm, 0, 0x01, 0x01);
+		} else
+			/* 1 = signal on */
+			new_gpio =  old_gpio |
+				(unsigned int) kcontrol->private_value;
+	} else {
+		/* mute */
+		if (kcontrol->private_value == GPIO_MUTE_CONTROL) {
+			/* 1 = signal off */
+			new_gpio = old_gpio | GPIO_MUTE_CONTROL;
+			/* smuting DAC */
+			snd_akm4xxx_write(ice->akm, 0, 0x01, 0x03);
+		} else
+			/* 0 = signal off */
+			new_gpio =  old_gpio &
+				~((unsigned int) kcontrol->private_value);
+	}
+	/* printk("JULI - mute/unmute: control_value: 0x%x, old_gpio: 0x%x, \
+		new_gpio 0x%x\n",
+		(unsigned int)ucontrol->value.integer.value[0], old_gpio,
+		new_gpio); */
+	if (old_gpio != new_gpio) {
+		ice->gpio.set_data(ice, new_gpio);
+		return 1;
+	}
+	/* no change */
+	return 0;
+}
+
+static struct snd_kcontrol_new juli_mute_controls[] __devinitdata = {
+	{
+		.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+		.name = "Master Playback Switch",
+		.info = juli_mute_info,
+		.get = juli_mute_get,
+		.put = juli_mute_put,
+		.private_value = GPIO_MUTE_CONTROL,
+	},
+	/* Although the following functionality respects the succint NDA'd
+	 * documentation from the card manufacturer, and the same way of
+	 * operation is coded in OSS Juli driver, only Digital Out monitor
+	 * seems to work. Surprisingly, Analog input monitor outputs Digital
+	 * output data. The two are independent, as enabling both doubles
+	 * volume of the monitor sound.
+	 *
+	 * Checking traces on the board suggests the functionality described
+	 * by the manufacturer is correct - I2S from ADC and AK4114
+	 * go to ICE as well as to Xilinx, I2S inputs of DAC2,3,4 (the monitor
+	 * inputs) are fed from Xilinx.
+	 *
+	 * I even checked traces on board and coded a support in driver for
+	 * an alternative possiblity - the unused I2S ICE output channels
+	 * switched to HW-IN/SPDIF-IN and providing the monitoring signal to
+	 * the DAC - to no avail. The I2S outputs seem to be unconnected.
+	 *
+	 * The windows driver supports the monitoring correctly.
+	 */
+	{
+		.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+		.name = "Monitor Analog In Switch",
+		.info = juli_mute_info,
+		.get = juli_mute_get,
+		.put = juli_mute_put,
+		.private_value = GPIO_ANAIN_MONITOR,
+	},
+	{
+		.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+		.name = "Monitor Digital Out Switch",
+		.info = juli_mute_info,
+		.get = juli_mute_get,
+		.put = juli_mute_put,
+		.private_value = GPIO_DIGOUT_MONITOR,
+	},
+	{
+		.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+		.name = "Monitor Digital In Switch",
+		.info = juli_mute_info,
+		.get = juli_mute_get,
+		.put = juli_mute_put,
+		.private_value = GPIO_DIGIN_MONITOR,
+	},
+};
+
+
+static void ak4358_proc_regs_read(struct snd_info_entry *entry,
+		struct snd_info_buffer *buffer)
+{
+	struct snd_ice1712 *ice = (struct snd_ice1712 *)entry->private_data;
+	int reg, val;
+	for (reg = 0; reg <= 0xf; reg++) {
+		val =  snd_akm4xxx_get(ice->akm, 0, reg);
+		snd_iprintf(buffer, "0x%02x = 0x%02x\n", reg, val);
 	}
+}
+
+static void ak4358_proc_init(struct snd_ice1712 *ice)
+{
+	struct snd_info_entry *entry;
+	if (!snd_card_proc_new(ice->card, "ak4358_codec", &entry))
+		snd_info_set_text_ops(entry, ice, ak4358_proc_regs_read);
+}
+
+static char *slave_vols[] __devinitdata = {
+	PCM_VOLUME,
+	MONITOR_AN_IN_VOLUME,
+	MONITOR_DIG_IN_VOLUME,
+	MONITOR_DIG_OUT_VOLUME,
+	NULL
 };
 
+static __devinitdata
+DECLARE_TLV_DB_SCALE(juli_master_db_scale, -6350, 50, 1);
+
+static struct snd_kcontrol __devinit *ctl_find(struct snd_card *card,
+		const char *name)
+{
+	struct snd_ctl_elem_id sid;
+	memset(&sid, 0, sizeof(sid));
+	/* FIXME: strcpy is bad. */
+	strcpy(sid.name, name);
+	sid.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
+	return snd_ctl_find_id(card, &sid);
+}
+
+static void __devinit add_slaves(struct snd_card *card,
+				 struct snd_kcontrol *master, char **list)
+{
+	for (; *list; list++) {
+		struct snd_kcontrol *slave = ctl_find(card, *list);
+		/* printk(KERN_DEBUG "add_slaves - %s\n", *list); */
+		if (slave) {
+			/* printk(KERN_DEBUG "slave %s found\n", *list); */
+			snd_ctl_add_slave(master, slave);
+		}
+	}
+}
+
 static int __devinit juli_add_controls(struct snd_ice1712 *ice)
 {
 	struct juli_spec *spec = ice->spec;
 	int err;
+	unsigned int i;
+	struct snd_kcontrol *vmaster;
+
 	err = snd_ice1712_akm4xxx_build_controls(ice);
 	if (err < 0)
 		return err;
+
+	for (i = 0; i < ARRAY_SIZE(juli_mute_controls); i++) {
+		err = snd_ctl_add(ice->card,
+				snd_ctl_new1(&juli_mute_controls[i], ice));
+		if (err < 0)
+			return err;
+	}
+	/* Create virtual master control */
+	vmaster = snd_ctl_make_virtual_master("Master Playback Volume",
+					      juli_master_db_scale);
+	if (!vmaster)
+		return -ENOMEM;
+	add_slaves(ice->card, vmaster, slave_vols);
+	err = snd_ctl_add(ice->card, vmaster);
+	if (err < 0)
+		return err;
+
 	/* only capture SPDIF over AK4114 */
 	err = snd_ak4114_build(spec->ak4114, NULL,
-			       ice->pcm_pro->streams[SNDRV_PCM_STREAM_CAPTURE].substream);
+			ice->pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream);
+
+	ak4358_proc_init(ice);
 	if (err < 0)
 		return err;
 	return 0;
@@ -174,6 +500,74 @@ static int __devinit juli_add_controls(struct snd_ice1712 *ice)
 /*
  * initialize the chip
  */
+
+static inline int juli_is_spdif_master(struct snd_ice1712 *ice)
+{
+	return (ice->gpio.get_data(ice) & GPIO_INTERNAL_CLOCK) ? 0 : 1;
+}
+
+static unsigned int juli_get_rate(struct snd_ice1712 *ice)
+{
+	int i;
+	unsigned char result;
+
+	result =  ice->gpio.get_data(ice) & GPIO_RATE_MASK;
+	for (i = 0; i < ARRAY_SIZE(gpio_vals); i++)
+		if (gpio_vals[i] == result)
+			return juli_rates[i];
+	return 0;
+}
+
+/* setting new rate */
+static void juli_set_rate(struct snd_ice1712 *ice, unsigned int rate)
+{
+	unsigned int old, new;
+	unsigned char val;
+
+	old = ice->gpio.get_data(ice);
+	new =  (old & ~GPIO_RATE_MASK) | get_gpio_val(rate);
+	/* printk(KERN_DEBUG "JULI - set_rate: old %x, new %x\n",
+			old & GPIO_RATE_MASK,
+			new & GPIO_RATE_MASK); */
+
+	ice->gpio.set_data(ice, new);
+	/* switching to external clock - supplied by external circuits */
+	val = inb(ICEMT1724(ice, RATE));
+	outb(val | VT1724_SPDIF_MASTER, ICEMT1724(ice, RATE));
+}
+
+static inline unsigned char juli_set_mclk(struct snd_ice1712 *ice,
+					  unsigned int rate)
+{
+	/* no change in master clock */
+	return 0;
+}
+
+/* setting clock to external - SPDIF */
+static void juli_set_spdif_clock(struct snd_ice1712 *ice)
+{
+	unsigned int old;
+	old = ice->gpio.get_data(ice);
+	/* external clock (= 0), multiply 1x, 48kHz */
+	ice->gpio.set_data(ice, (old & ~GPIO_RATE_MASK) | GPIO_MULTI_1X |
+			GPIO_FREQ_48KHZ);
+}
+
+/* Called when ak4114 detects change in the input SPDIF stream */
+static void juli_ak4114_change(struct ak4114 *ak4114, unsigned char c0,
+			       unsigned char c1)
+{
+	struct snd_ice1712 *ice = ak4114->change_callback_private;
+	int rate;
+	if (ice->is_spdif_master(ice) && c1) {
+		/* only for SPDIF master mode, rate was changed */
+		rate = snd_ak4114_external_rate(ak4114);
+		/* printk(KERN_DEBUG "ak4114 - input rate changed to %d\n",
+				rate); */
+		juli_akm_set_rate_val(ice->akm, rate);
+	}
+}
+
 static int __devinit juli_init(struct snd_ice1712 *ice)
 {
 	static const unsigned char ak4114_init_vals[] = {
@@ -203,6 +597,11 @@ static int __devinit juli_init(struct snd_ice1712 *ice)
 				ice, &spec->ak4114);
 	if (err < 0)
 		return err;
+	/* callback for codecs rate setting */
+	spec->ak4114->change_callback = juli_ak4114_change;
+	spec->ak4114->change_callback_private = ice;
+	/* AK4114 in Juli can detect external rate correctly */
+	spec->ak4114->check_flags = 0;
 
 #if 0
         /* it seems that the analog doughter board detection does not work
@@ -226,6 +625,14 @@ static int __devinit juli_init(struct snd_ice1712 *ice)
 			return err;
 	}
 	
+	/* juli is clocked by Xilinx array */
+	ice->hw_rates = &juli_rates_info;
+	ice->is_spdif_master = juli_is_spdif_master;
+	ice->get_rate = juli_get_rate;
+	ice->set_rate = juli_set_rate;
+	ice->set_mclk = juli_set_mclk;
+	ice->set_spdif_clock = juli_set_spdif_clock;
+
 	ice->spdif.ops.open = juli_spdif_in_open;
 	return 0;
 }
@@ -237,18 +644,20 @@ static int __devinit juli_init(struct snd_ice1712 *ice)
  */
 
 static unsigned char juli_eeprom[] __devinitdata = {
-	[ICE_EEP2_SYSCONF]     = 0x20,	/* clock 512, mpu401, 1xADC, 1xDACs */
+	[ICE_EEP2_SYSCONF]     = 0x2b,	/* clock 512, mpu401, 1xADC, 1xDACs,
+					   SPDIF in */
 	[ICE_EEP2_ACLINK]      = 0x80,	/* I2S */
 	[ICE_EEP2_I2S]         = 0xf8,	/* vol, 96k, 24bit, 192k */
 	[ICE_EEP2_SPDIF]       = 0xc3,	/* out-en, out-int, spdif-in */
-	[ICE_EEP2_GPIO_DIR]    = 0x9f,
+	[ICE_EEP2_GPIO_DIR]    = 0x9f,	/* 5, 6:inputs; 7, 4-0 outputs*/
 	[ICE_EEP2_GPIO_DIR1]   = 0xff,
 	[ICE_EEP2_GPIO_DIR2]   = 0x7f,
-	[ICE_EEP2_GPIO_MASK]   = 0x9f,
-	[ICE_EEP2_GPIO_MASK1]  = 0xff,
+	[ICE_EEP2_GPIO_MASK]   = 0x60,	/* 5, 6: locked; 7, 4-0 writable */
+	[ICE_EEP2_GPIO_MASK1]  = 0x00,  /* 0-7 writable */
 	[ICE_EEP2_GPIO_MASK2]  = 0x7f,
-	[ICE_EEP2_GPIO_STATE]  = 0x16,	/* internal clock, multiple 1x, 48kHz */
-	[ICE_EEP2_GPIO_STATE1] = 0x80,	/* mute */
+	[ICE_EEP2_GPIO_STATE]  = GPIO_FREQ_48KHZ | GPIO_MULTI_1X |
+	       GPIO_INTERNAL_CLOCK,	/* internal clock, multiple 1x, 48kHz*/
+	[ICE_EEP2_GPIO_STATE1] = 0x00,	/* unmuted */
 	[ICE_EEP2_GPIO_STATE2] = 0x00,
 };