init

lib_xua/host_usb_mixer_control/usb_mixer.h

@@ -0,0 +1,115 @@
+// Copyright 2022-2024 XMOS LIMITED.
+// This Software is subject to the terms of the XMOS Public Licence: Version 1.
+
+#define USB_MIXER_SUCCESS 0
+#define USB_MIXER_FAILURE -1
+
+#define USB_MIXERS 1
+#define USB_MIXER_INPUTS 18
+#define USB_MIXER_OUTPUTS 8
+#define USB_MAX_CHANNEL_MAP_SIZE 40
+#define USB_MIXER_MAX_NAME_LEN 64
+
+enum usb_chan_type {
+  USB_CHAN_OUT=0,
+  USB_CHAN_IN=1,
+  USB_CHAN_MIXER=2
+};
+
+/* A.14 Audio Class-Specific Request Codes */
+#define REQUEST_CODE_UNDEFINED      0x00
+#define CUR   (1)
+#define RANGE (2)
+#define MEM   (3)
+
+#ifdef _WIN32
+#include <tchar.h>
+// GUID strings are 36 characters, plus a pair of braces and NUL-termination
+#define GUID_STR_LEN (36+2+1)
+int usb_mixer_connect(TCHAR guid[GUID_STR_LEN]);
+#else
+int usb_mixer_connect();
+#endif
+int usb_mixer_disconnect();
+
+/* MIXER UNIT(s) INTERFACE */
+
+/* Returns total number of mixers in device */
+int usb_mixer_get_num_mixers();
+
+/* Returns number of inputs and outputs for a selected mixer */
+int usb_mixer_get_layout(unsigned int mixer, unsigned int *inputs, unsigned int *outputs);
+
+/* Returns the name for a selected mixer input */
+char *usb_mixer_get_input_name(unsigned int mixer, unsigned int input);
+
+/* Returns the name for a selected mixer output */
+char *usb_mixer_get_output_name(unsigned int mixer, unsigned int output);
+
+/* Returns the current value of a selected mixer unit */
+double usb_mixer_get_value(unsigned int mixer, unsigned int mixer_unit);
+
+/* Sets the current value for a selected mixer unit */
+int usb_mixer_set_value(unsigned int mixer, unsigned int mixer_unit, double val);
+
+/* Returns the range values for a selected mixer unit */
+int usb_mixer_get_range(unsigned int mixer, unsigned int mixer_unit, double *min, double *max, double *res);
+
+/* Returns the number of bytes read from a mem request, data is stored in data */
+int usb_mixer_mem_get(unsigned int mixer, unsigned offset, unsigned char *data);
+
+
+/* INPUT / OUTPUT / MIXER MAPPING UNIT INTERFACE */
+
+/* Get the number of selectable inputs */
+int usb_mixsel_get_input_count(unsigned int mixer);
+
+/* Get the string of a input */
+char *usb_mixsel_get_input_string(unsigned int mixer, unsigned int channel);
+
+int usb_mixsel_get_output_count(unsigned int mixer);
+
+int usb_mixer_get_num_outputs(unsigned int mixer);
+
+int usb_mixer_get_num_inputs(unsigned int mixer);
+
+unsigned char usb_mixsel_get_state(unsigned int mixer, unsigned int channel);
+
+void usb_mixsel_set_state(unsigned int mixer, unsigned int dst, unsigned int src);
+
+int usb_set_usb_channel_map(int channel, int val);
+
+
+/* Get the current map for a specified input / output / mixer channel */
+int usb_get_usb_channel_map(int channel);
+int usb_get_aud_channel_map(int channel);
+
+/* Maps an input / output / mixer channel to another input / output / mixer channel */
+int usb_set_aud_channel_map(int channel, int val);
+int usb_set_usb_channel_map(int channel, int val);
+
+/* Gets the name of a specified channel */
+char *usb_get_aud_channel_map_name(int channel);
+char *usb_get_usb_channel_map_name(int channel);
+
+/* Get the type of a channel map */
+enum usb_chan_type usb_get_aud_channel_map_type(int channel);
+enum usb_chan_type usb_get_usb_channel_map_type(int channel);
+
+int usb_get_aud_channel_map_num_outputs();
+int usb_get_usb_channel_map_num_outputs();
+
+int usb_get_aud_channel_map_num_inputs();
+int usb_get_usb_channel_map_num_inputs();
+
+/* CUSTOM/GENERIC AUDIO CLASS REQUESTS */
+
+int usb_audio_class_get(unsigned char bRequest, unsigned char cs, unsigned char cn, unsigned short unitID, unsigned short wLength, unsigned char *data);
+
+int usb_audio_class_set(unsigned char bRequest, unsigned char cs, unsigned char cn, unsigned short unitID, unsigned short wLength, unsigned char *data);
+
+double usb_mixer_get_res(unsigned int mixer, unsigned int nodeId);
+
+double usb_mixer_get_min(unsigned int mixer, unsigned int nodeId) ;
+
+double usb_mixer_get_max(unsigned int mixer, unsigned int nodeId) ;