--- zzzz-none-000/linux-3.10.107/sound/pci/oxygen/xonar_dg.h	2017-06-27 09:49:32.000000000 +0000
+++ scorpion-7490-727/linux-3.10.107/sound/pci/oxygen/xonar_dg.h	2021-02-04 17:41:59.000000000 +0000
@@ -3,6 +3,54 @@
 
 #include "oxygen.h"
 
+#define GPIO_MAGIC		0x0008
+#define GPIO_HP_DETECT		0x0010
+#define GPIO_INPUT_ROUTE	0x0060
+#define GPIO_HP_REAR		0x0080
+#define GPIO_OUTPUT_ENABLE	0x0100
+
+#define CAPTURE_SRC_MIC		0
+#define CAPTURE_SRC_FP_MIC	1
+#define CAPTURE_SRC_LINE	2
+#define CAPTURE_SRC_AUX		3
+
+#define PLAYBACK_DST_HP		0
+#define PLAYBACK_DST_HP_FP	1
+#define PLAYBACK_DST_MULTICH	2
+
+enum cs4245_shadow_operation {
+	CS4245_SAVE_TO_SHADOW,
+	CS4245_LOAD_FROM_SHADOW
+};
+
+struct dg {
+	/* shadow copy of the CS4245 register space */
+	unsigned char cs4245_shadow[17];
+	/* output select: headphone/speakers */
+	unsigned char output_sel;
+	/* volumes for all capture sources */
+	char input_vol[4][2];
+	/* input select: mic/fp mic/line/aux */
+	unsigned char input_sel;
+};
+
+/* Xonar DG control routines */
+int cs4245_write_spi(struct oxygen *chip, u8 reg);
+int cs4245_read_spi(struct oxygen *chip, u8 reg);
+int cs4245_shadow_control(struct oxygen *chip, enum cs4245_shadow_operation op);
+void dg_init(struct oxygen *chip);
+void set_cs4245_dac_params(struct oxygen *chip,
+				  struct snd_pcm_hw_params *params);
+void set_cs4245_adc_params(struct oxygen *chip,
+				  struct snd_pcm_hw_params *params);
+unsigned int adjust_dg_dac_routing(struct oxygen *chip,
+					  unsigned int play_routing);
+void dump_cs4245_registers(struct oxygen *chip,
+				struct snd_info_buffer *buffer);
+void dg_suspend(struct oxygen *chip);
+void dg_resume(struct oxygen *chip);
+void dg_cleanup(struct oxygen *chip);
+
 extern struct oxygen_model model_xonar_dg;
 
 #endif