ALSA: ice1712 - working M-Audio Delta 66E support
Rev. E of the M-Audio Delta 66 is partially supported (commit
ef2cd2ccad66b4aba518eca7514eface267ee0f3), but the layout of the GPIO
pins was still unclear. This patch adds the GPIO definitions so that
communication to the CS8247 & 2x AK4524 works correctly.
ALSA bug#3327 has more details; users cap & jhunt report there that the
GPIO wiring is similar to the Digigram VX442 (chip select: pin 4 =
CS8427, pin 5 = AK4524 #0, pin 6 = AK4524 #1). There has been a lot of
conflicting information in the bug, but given these definitions, my
Delta 66E works; I tested analog in&out at 44.1kHz & 96kHz, analog gain
settings, S/PDIF clock sync, and S/PDIF in&out at 44.1kHz.
Signed-off-by: Brian Bloniarz <brian.bloniarz@gmail.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
diff --git a/sound/pci/ice1712/delta.h b/sound/pci/ice1712/delta.h
index 1a0ac6c..11a9c3a 100644
--- a/sound/pci/ice1712/delta.h
+++ b/sound/pci/ice1712/delta.h
@@ -144,6 +144,17 @@
#define ICE1712_DELTA_1010LT_CS_NONE 0x50 /* nothing */
#define ICE1712_DELTA_1010LT_WORDCLOCK 0x80 /* sample clock source: 0 = Word Clock Input, 1 = S/PDIF Input ??? */
+/* M-Audio Delta 66 rev. E definitions.
+ * Newer revisions of Delta 66 have CS8427 over SPI for
+ * S/PDIF transceiver instead of CS8404/CS8414. */
+/* 0x01 = DFS */
+#define ICE1712_DELTA_66E_CCLK 0x02 /* SPI clock */
+#define ICE1712_DELTA_66E_DIN 0x04 /* data input */
+#define ICE1712_DELTA_66E_DOUT 0x08 /* data output */
+#define ICE1712_DELTA_66E_CS_CS8427 0x10 /* chip select, low = CS8427 */
+#define ICE1712_DELTA_66E_CS_CHIP_A 0x20 /* AK4524 #0 */
+#define ICE1712_DELTA_66E_CS_CHIP_B 0x40 /* AK4524 #1 */
+
/* Digigram VX442 definitions */
#define ICE1712_VX442_CCLK 0x02 /* SPI clock */
#define ICE1712_VX442_DIN 0x04 /* data input */