1 files changed, 160 insertions, 3 deletions

diff --git a/sound/pci/ice1712/aureon.c b/sound/pci/ice1712/aureon.c
index 7e6608b14abc..336dc489aee1 100644
--- a/sound/pci/ice1712/aureon.c
+++ b/sound/pci/ice1712/aureon.c
@@ -87,7 +87,151 @@
 #define CS8415_C_BUFFER 0x20
 #define CS8415_ID               0x7F
 
-static void aureon_ac97_write(struct snd_ice1712 *ice, unsigned short reg, unsigned short val) {
+/* PCA9554 registers */
+#define PCA9554_DEV     0x40            /* I2C device address */
+#define PCA9554_IN      0x00            /* input port */
+#define PCA9554_OUT     0x01            /* output port */
+#define PCA9554_INVERT  0x02            /* input invert */
+#define PCA9554_DIR     0x03            /* port directions */
+
+/*
+ * Aureon Universe additional controls using PCA9554
+ */
+
+/*
+ * Send data to pca9554
+ */
+static void aureon_pca9554_write(struct snd_ice1712 *ice, unsigned char reg,
+                                 unsigned char data)
+{
+        unsigned int tmp;
+        int i, j;
+        unsigned char dev = PCA9554_DEV;  /* ID 0100000, write */
+        unsigned char val = 0;
+
+        tmp = snd_ice1712_gpio_read(ice);
+
+        snd_ice1712_gpio_set_mask(ice, ~(AUREON_SPI_MOSI|AUREON_SPI_CLK|
+                                         AUREON_WM_RW|AUREON_WM_CS|
+                                         AUREON_CS8415_CS));
+        tmp |= AUREON_WM_RW;
+        tmp |= AUREON_CS8415_CS | AUREON_WM_CS; /* disable SPI devices */
+
+        tmp &= ~AUREON_SPI_MOSI;
+        tmp &= ~AUREON_SPI_CLK;
+        snd_ice1712_gpio_write(ice, tmp);
+        udelay(50);
+
+        /* 
+         * send i2c stop condition and start condition
+         * to obtain sane state
+         */
+        tmp |= AUREON_SPI_CLK;
+        snd_ice1712_gpio_write(ice, tmp);
+        udelay(50);
+        tmp |= AUREON_SPI_MOSI;
+        snd_ice1712_gpio_write(ice, tmp);
+        udelay(100);
+        tmp &= ~AUREON_SPI_MOSI;
+        snd_ice1712_gpio_write(ice, tmp);
+        udelay(50);
+        tmp &= ~AUREON_SPI_CLK;
+        snd_ice1712_gpio_write(ice, tmp);
+        udelay(100);
+        /*
+         * send device address, command and value,
+         * skipping ack cycles inbetween
+         */
+        for (j = 0; j < 3; j++) {
+                switch(j) {
+                case 0: val = dev; break;
+                case 1: val = reg; break;
+                case 2: val = data; break;
+                }
+                for (i = 7; i >= 0; i--) {
+                        tmp &= ~AUREON_SPI_CLK;
+                        snd_ice1712_gpio_write(ice, tmp);
+                        udelay(40);
+                        if (val & (1 << i))
+                                tmp |= AUREON_SPI_MOSI;
+                        else
+                                tmp &= ~AUREON_SPI_MOSI;
+                        snd_ice1712_gpio_write(ice, tmp);
+                        udelay(40);
+                        tmp |= AUREON_SPI_CLK;
+                        snd_ice1712_gpio_write(ice, tmp);
+                        udelay(40);
+                }
+                tmp &= ~AUREON_SPI_CLK;
+                snd_ice1712_gpio_write(ice, tmp);
+                udelay(40);
+                tmp |= AUREON_SPI_CLK;
+                snd_ice1712_gpio_write(ice, tmp);
+                udelay(40);
+                tmp &= ~AUREON_SPI_CLK;
+                snd_ice1712_gpio_write(ice, tmp);
+                udelay(40);
+        }
+        tmp &= ~AUREON_SPI_CLK;
+        snd_ice1712_gpio_write(ice, tmp);
+        udelay(40);
+        tmp &= ~AUREON_SPI_MOSI;
+        snd_ice1712_gpio_write(ice, tmp);
+        udelay(40);
+        tmp |= AUREON_SPI_CLK;
+        snd_ice1712_gpio_write(ice, tmp);
+        udelay(50);
+        tmp |= AUREON_SPI_MOSI;
+        snd_ice1712_gpio_write(ice, tmp);
+        udelay(100);
+}
+
+static int aureon_universe_inmux_info(struct snd_kcontrol *kcontrol,
+                                      struct snd_ctl_elem_info *uinfo)
+{
+        char *texts[3] = {"Internal Aux", "Wavetable", "Rear Line-In"};
+
+        uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
+        uinfo->count = 1;
+        uinfo->value.enumerated.items = 3;
+        if(uinfo->value.enumerated.item >= uinfo->value.enumerated.items)
+                uinfo->value.enumerated.item = uinfo->value.enumerated.items - 1;
+        strcpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item]);
+        return 0;
+}
+
+static int aureon_universe_inmux_get(struct snd_kcontrol *kcontrol,
+                                     struct snd_ctl_elem_value *ucontrol)
+{
+        struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);
+        ucontrol->value.integer.value[0] = ice->spec.aureon.pca9554_out;
+        return 0;
+}
+
+static int aureon_universe_inmux_put(struct snd_kcontrol *kcontrol,
+                                     struct snd_ctl_elem_value *ucontrol)
+{
+        struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);
+        unsigned char oval, nval;
+        int change;
+
+        snd_ice1712_save_gpio_status(ice);
+        
+        oval = ice->spec.aureon.pca9554_out;
+        nval = ucontrol->value.integer.value[0];
+        if ((change = (oval != nval))) {
+                aureon_pca9554_write(ice, PCA9554_OUT, nval);
+                ice->spec.aureon.pca9554_out = nval;
+        }
+        snd_ice1712_restore_gpio_status(ice);
+        
+        return change;
+}
+
+
+static void aureon_ac97_write(struct snd_ice1712 *ice, unsigned short reg,
+                              unsigned short val)
+{
         unsigned int tmp;
 
         /* Send address to XILINX chip */
@@ -146,7 +290,8 @@ static unsigned short aureon_ac97_read(struct snd_ice1712 *ice, unsigned short r
 /*
  * Initialize STAC9744 chip
  */
-static int aureon_ac97_init (struct snd_ice1712 *ice) {
+static int aureon_ac97_init (struct snd_ice1712 *ice)
+{
         int i;
         static unsigned short ac97_defaults[] = {
                 0x00, 0x9640,
@@ -1598,7 +1743,15 @@ static struct snd_kcontrol_new universe_ac97_controls[] __devinitdata = {
                 .get = aureon_ac97_vol_get,
                 .put = aureon_ac97_vol_put,
                 .private_value = AC97_VIDEO|AUREON_AC97_STEREO
-        }
+        },
+        {
+                .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+                .name = "Aux Source",
+                .info = aureon_universe_inmux_info,
+                .get = aureon_universe_inmux_get,
+                .put = aureon_universe_inmux_put
+        }
+
 };
 
         
@@ -1856,6 +2009,10 @@ static int __devinit aureon_init(struct snd_ice1712 *ice)
         }
 
         snd_ice1712_restore_gpio_status(ice);
+
+        /* initialize PCA9554 pin directions & set default input*/
+        aureon_pca9554_write(ice, PCA9554_DIR, 0x00);
+        aureon_pca9554_write(ice, PCA9554_OUT, 0x00);   /* internal AUX */
         
         ice->spec.aureon.master[0] = WM_VOL_MUTE;
         ice->spec.aureon.master[1] = WM_VOL_MUTE;