[ALSA] Implement support for Line-in capture on SB Live 24bit.

CA0106 driver
Notes: MIC capture not tested yet.

Signed-off-by: James Courtier-Dutton <James@superbug.co.uk>

1 files changed, 57 insertions, 4 deletions

diff --git a/sound/pci/ca0106/ca0106.h b/sound/pci/ca0106/ca0106.h
index c623858428cd..67e56a530b22 100644
--- a/sound/pci/ca0106/ca0106.h
+++ b/sound/pci/ca0106/ca0106.h
@@ -1,7 +1,7 @@
 /*
  *  Copyright (c) 2004 James Courtier-Dutton <James@superbug.demon.co.uk>
  *  Driver CA0106 chips. e.g. Sound Blaster Audigy LS and Live 24bit
- *  Version: 0.0.20
+ *  Version: 0.0.21
  *
  *  FEATURES currently supported:
  *    See ca0106_main.c for features.
@@ -45,6 +45,8 @@
  *    Added I2C and SPI registers. Filled in interrupt enable.
  *  0.0.20
  *    Added GPIO info for SB Live 24bit.
+ *  0.0.21
+ *   Implement support for Line-in capture on SB Live 24bit.
  *
  *
  *  This code was initally based on code from ALSA's emu10k1x.c which is:
@@ -475,9 +477,56 @@
                                                 /* Causes interrupts based on timer intervals. */
 #define SPI                     0x7a            /* SPI: Serial Interface Register */
 #define I2C_A                   0x7b            /* I2C Address. 32 bit */
-#define I2C_0                   0x7c            /* I2C Data Port 0. 32 bit */
-#define I2C_1                   0x7d            /* I2C Data Port 1. 32 bit */
-
+#define I2C_D0                  0x7c            /* I2C Data Port 0. 32 bit */
+#define I2C_D1                  0x7d            /* I2C Data Port 1. 32 bit */
+//I2C values
+#define I2C_A_ADC_ADD_MASK      0x000000fe      //The address is a 7 bit address
+#define I2C_A_ADC_RW_MASK       0x00000001      //bit mask for R/W
+#define I2C_A_ADC_TRANS_MASK    0x00000010      //Bit mask for I2c address DAC value
+#define I2C_A_ADC_ABORT_MASK    0x00000020      //Bit mask for I2C transaction abort flag
+#define I2C_A_ADC_LAST_MASK     0x00000040      //Bit mask for Last word transaction
+#define I2C_A_ADC_BYTE_MASK     0x00000080      //Bit mask for Byte Mode
+
+#define I2C_A_ADC_ADD           0x00000034      //This is the Device address for ADC 
+#define I2C_A_ADC_READ          0x00000001      //To perform a read operation
+#define I2C_A_ADC_START         0x00000100      //Start I2C transaction
+#define I2C_A_ADC_ABORT         0x00000200      //I2C transaction abort
+#define I2C_A_ADC_LAST          0x00000400      //I2C last transaction
+#define I2C_A_ADC_BYTE          0x00000800      //I2C one byte mode
+
+#define I2C_D_ADC_REG_MASK      0xfe000000      //ADC address register 
+#define I2C_D_ADC_DAT_MASK      0x01ff0000      //ADC data register
+
+#define ADC_TIMEOUT             0x00000007      //ADC Timeout Clock Disable
+#define ADC_IFC_CTRL            0x0000000b      //ADC Interface Control
+#define ADC_MASTER              0x0000000c      //ADC Master Mode Control
+#define ADC_POWER               0x0000000d      //ADC PowerDown Control
+#define ADC_ATTEN_ADCL          0x0000000e      //ADC Attenuation ADCL
+#define ADC_ATTEN_ADCR          0x0000000f      //ADC Attenuation ADCR
+#define ADC_ALC_CTRL1           0x00000010      //ADC ALC Control 1
+#define ADC_ALC_CTRL2           0x00000011      //ADC ALC Control 2
+#define ADC_ALC_CTRL3           0x00000012      //ADC ALC Control 3
+#define ADC_NOISE_CTRL          0x00000013      //ADC Noise Gate Control
+#define ADC_LIMIT_CTRL          0x00000014      //ADC Limiter Control
+#define ADC_MUX                 0x00000015      //ADC Mux offset
+
+#if 0
+/* FIXME: Not tested yet. */
+#define ADC_GAIN_MASK           0x000000ff      //Mask for ADC Gain
+#define ADC_ZERODB              0x000000cf      //Value to set ADC to 0dB
+#define ADC_MUTE_MASK           0x000000c0      //Mask for ADC mute
+#define ADC_MUTE                0x000000c0      //Value to mute ADC
+#define ADC_OSR                 0x00000008      //Mask for ADC oversample rate select
+#define ADC_TIMEOUT_DISABLE     0x00000008      //Value and mask to disable Timeout clock
+#define ADC_HPF_DISABLE         0x00000100      //Value and mask to disable High pass filter
+#define ADC_TRANWIN_MASK        0x00000070      //Mask for Length of Transient Window
+#endif
+
+#define ADC_MUX_MASK            0x0000000f      //Mask for ADC Mux
+#define ADC_MUX_MIC             0x00000002      //Value to select Mic at ADC Mux
+#define ADC_MUX_LINEIN          0x00000004      //Value to select LineIn at ADC Mux
+#define ADC_MUX_PHONE           0x00000001      //Value to select TAD at ADC Mux (Not used)
+#define ADC_MUX_AUX             0x00000008      //Value to select Aux at ADC Mux
 
 #define SET_CHANNEL 0  /* Testing channel outputs 0=Front, 1=Center/LFE, 2=Unknown, 3=Rear */
 #define PCM_FRONT_CHANNEL 0
@@ -513,6 +562,7 @@ typedef struct {
         char * name;
         int ac97;
         int gpio_type;
+        int i2c_adc;
 } ca0106_details_t;
 
 // definition of the chip-specific record
@@ -555,3 +605,6 @@ void snd_ca0106_ptr_write(ca0106_t *emu,
                                    unsigned int chn, 
                                    unsigned int data);
 
+int snd_ca0106_i2c_write(ca0106_t *emu, u32 reg, u32 value);
+
+