[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>
diff --git a/sound/pci/ca0106/ca0106_main.c b/sound/pci/ca0106/ca0106_main.c
index a56e68e..58d9026 100644
--- a/sound/pci/ca0106/ca0106_main.c
+++ b/sound/pci/ca0106/ca0106_main.c
@@ -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: 0.0.22
+ * Version: 0.0.23
*
* FEATURES currently supported:
* Front, Rear and Center/LFE.
@@ -77,6 +77,8 @@
* Add SPDIF capture using optional digital I/O module for SB Live 24bit. (Analog capture does not yet work.)
* 0.0.22
* Add support for MSI K8N Diamond Motherboard with onboard SB Live 24bit without AC97. From kiksen, bug #901
+ * 0.0.23
+ * Implement support for Line-in capture on SB Live 24bit.
*
* BUGS:
* Some stability problems when unloading the snd-ca0106 kernel module.
@@ -173,15 +175,18 @@
/* New Sound Blaster Live! 7.1 24bit. This does not have an AC97. 53SB041000001 */
{ .serial = 0x10061102,
.name = "Live! 7.1 24bit [SB0410]",
- .gpio_type = 1 } ,
+ .gpio_type = 1,
+ .i2c_adc = 1 } ,
/* New Dell Sound Blaster Live! 7.1 24bit. This does not have an AC97. */
{ .serial = 0x10071102,
.name = "Live! 7.1 24bit [SB0413]",
- .gpio_type = 1 } ,
+ .gpio_type = 1,
+ .i2c_adc = 1 } ,
/* MSI K8N Diamond Motherboard with onboard SB Live 24bit without AC97 */
{ .serial = 0x10091462,
.name = "MSI K8N Diamond MB [SB0438]",
- .gpio_type = 1 } ,
+ .gpio_type = 1,
+ .i2c_adc = 1 } ,
{ .serial = 0,
.name = "AudigyLS [Unknown]" }
};
@@ -257,6 +262,59 @@
spin_unlock_irqrestore(&emu->emu_lock, flags);
}
+int snd_ca0106_i2c_write(ca0106_t *emu,
+ u32 reg,
+ u32 value)
+{
+ u32 tmp;
+ int timeout=0;
+ int status;
+ int retry;
+ if ((reg > 0x7f) || (value > 0x1ff))
+ {
+ snd_printk("i2c_write: invalid values.\n");
+ return -EINVAL;
+ }
+
+ tmp = reg << 25 | value << 16;
+ snd_ca0106_ptr_write(emu, I2C_D0, 0, tmp);
+ snd_ca0106_ptr_write(emu, I2C_D1, 0, tmp);
+
+ for(retry=0;retry<10;retry++)
+ {
+ /* Send the data to i2c */
+ tmp = snd_ca0106_ptr_read(emu, I2C_A, 0);
+ tmp = tmp & ~(I2C_A_ADC_READ|I2C_A_ADC_LAST|I2C_A_ADC_START|I2C_A_ADC_ADD_MASK);
+ tmp = tmp | (I2C_A_ADC_LAST|I2C_A_ADC_START|I2C_A_ADC_ADD);
+ snd_ca0106_ptr_write(emu, I2C_A, 0, tmp);
+
+ /* Wait till the transaction ends */
+ while(1)
+ {
+ status = snd_ca0106_ptr_read(emu, I2C_A, 0);
+ //snd_printk("I2C:status=0x%x\n", status);
+ timeout++;
+ if((status & I2C_A_ADC_START)==0)
+ break;
+
+ if(timeout>1000)
+ break;
+ }
+ //Read back and see if the transaction is successful
+ if((status & I2C_A_ADC_ABORT)==0)
+ break;
+ }
+
+ if(retry==10)
+ {
+ snd_printk("Writing to ADC failed!\n");
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+
static void snd_ca0106_intr_enable(ca0106_t *emu, unsigned int intrenb)
{
unsigned long flags;
@@ -1177,6 +1235,10 @@
//outl(0x00000009, chip->port+HCFG);
outl(HCFG_AC97 | HCFG_AUDIOENABLE, chip->port+HCFG); /* AC97 2.0, Enable outputs. */
+ if (chip->details->i2c_adc == 1) { /* The SB0410 and SB0413 use I2C to control ADC. */
+ snd_ca0106_i2c_write(chip, ADC_MUX, ADC_MUX_LINEIN); /* Enable Line-in capture. MIC in currently untested. */
+ }
+
if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL,
chip, &ops)) < 0) {
snd_ca0106_free(chip);