diff --git a/host_usb_mixer_control/OSX/usb_mixer.cpp b/host_usb_mixer_control/OSX/usb_mixer.cpp deleted file mode 100644 index 7cb5e712..00000000 --- a/host_usb_mixer_control/OSX/usb_mixer.cpp +++ /dev/null @@ -1,962 +0,0 @@ -// Copyright 2022-2023 XMOS LIMITED. -// This Software is subject to the terms of the XMOS Public Licence: Version 1. - -#include -#include -#include -#include "usb_mixer.h" -#include "libusb.h" - -/* Note: this is all quite generic and could be simplified ALOT for a specific design */ - -// TODO we dont really need to store mixer input strings -// Currently res, max, min dont get populated - -#define XMOS_VID 0x20b1 -uint16_t XMOS_PID[] = { - 0x0002, //L1_AUDIO2 - 0x0003, //L1_AUDIO1 - 0x0004, //L2_AUDIO2 - 0x000E, //xk_216_AUDIO2 - 0x000F, //xk_216_AUDIO1 - 0x0016, //xk_316_AUDIO2 - 0x0017, //xk_316_AUDIO1 -}; - -#define USB_REQUEST_TO_DEV 0x21 /* D7 Data direction: 0 (Host to device) - * D6:5 Type: 01 (Class) - * D4:0 Receipient: 1 (Interface) */ -#define USB_REQUEST_FROM_DEV 0xa1 - -#define USB_CS_INTERFACE 0x24 -#define USB_INPUT_TERM_TYPE 0x02 -#define USB_MIXER_UNIT_TYPE 0x04 -#define USB_FEATURE_UNIT_TYPE 0x06 - -#define INPUT_TERMINAL USB_INPUT_TERM_TYPE -#define EXTENSION_UNIT 0x9 -#define CS_INTERFACE USB_CS_INTERFACE -#define FEATURE_UNIT 0x06 - -#define CS_XU_SEL 0x6 -#define MU_MIXER_CONTROL 0x1 - -// Output from PC -#define USB_STREAMING 0x01 -// Input to device -//#define MICROPHONE 0x02 - -#define ID_XU_OUT 51 -#define ID_XU_IN 52 - -#define OFFSET_BLENGTH 0 -#define OFFSET_BDESCRIPTORTYPE 1 -#define OFFSET_BDESCRIPTORSUBTYPE 2 -#define OFFSET_BUNITID 3 - -#define OFFSET_FU_BSOURCEID 4 - -#define OFFSET_XU_BNRINPINS 6 -#define OFFSET_XU_BSOURCEID 7 - -#define OFFSET_IT_WTERMINALTYPE 5 -#define OFFSET_IT_BNRCHANNELS 8 -#define OFFSET_IT_ICHANNELNAMES 13 - -typedef struct -{ - double min; - double max; - double res; - double weight; -} mixer_node; - -typedef struct -{ - unsigned int id; - unsigned int num_inputs; - char input_names[USB_MIXER_INPUTS][USB_MIXER_MAX_NAME_LEN]; /* Current mixer input names - - * we dont really need to store these */ - int input_connections[USB_MIXER_INPUTS]; - unsigned int num_outputs; - char output_names[USB_MIXER_INPUTS][USB_MIXER_MAX_NAME_LEN]; - unsigned int num_inPins; - mixer_node nodes[USB_MIXER_INPUTS * USB_MIXER_OUTPUTS]; -} usb_mixer_device; - -typedef struct { - int cur; - int default_value; - char name[USB_MIXER_MAX_NAME_LEN]; - enum usb_chan_type ctype; -}channel_map_node; - -typedef struct { - int numInputs; - int numOutputs; - channel_map_node map[USB_MAX_CHANNEL_MAP_SIZE]; -}channel_mapp; - -typedef struct -{ - unsigned int id; - unsigned int numInputs; - char inputStrings[USB_MIXER_INPUTS*4][USB_MIXER_MAX_NAME_LEN]; /* Complete list of all possible inputs */ - unsigned int numOutputs; - unsigned int state[USB_MIXER_INPUTS]; -} t_usb_mixSel; - -typedef struct { - unsigned int device_open; - unsigned int num_usb_mixers; - usb_mixer_device usb_mixer[USB_MIXERS]; - t_usb_mixSel usb_mixSel[USB_MIXERS]; - - channel_mapp audChannelMap; - channel_mapp usbChannelMap; - - -} usb_mixer_handle; - -static usb_mixer_handle *usb_mixers = NULL; - -static libusb_device_handle *devh = NULL; - -bool is_supported_device(uint16_t pid) -{ - for(uint16_t id : XMOS_PID) - { - if (pid == id) return true; - } - fprintf(stderr, "ERROR :: Device not supported\n"); - return false; -} - -/* Issue a generic control/class GET request to a specific unit in the Audio Interface */ -int usb_audio_class_get(unsigned char bRequest, unsigned char cs, unsigned char cn, unsigned short unitID, unsigned short wLength, unsigned char *data) -{ - return libusb_control_transfer(devh, - USB_REQUEST_FROM_DEV, - bRequest, - (cs<<8) | cn, /* wValue */ - (unitID & 0xff) << 8 | 0x0, - data, - wLength, - 0); -} - -/* Issue a generic control/class SET request to a specific unit in the Audio Interface */ -int usb_audio_class_set(unsigned char bRequest, unsigned char cs, unsigned char cn, unsigned short unitID, unsigned short wLength, unsigned char *data) -{ - return libusb_control_transfer(devh, - USB_REQUEST_TO_DEV, - bRequest, - (cs<<8) | cn, /* wValue */ - (unitID & 0xff) << 8 | 0x0, - data, - wLength, - 0); -} - -/* Note, this never get cached in an object since it can change on the device side */ -int usb_mixer_mem_get(unsigned int mixer, unsigned offset, unsigned char *data) -{ - return libusb_control_transfer(devh, - USB_REQUEST_FROM_DEV, /* nRequest */ - MEM, /* bRequest */ - offset, /* wValue */ - (usb_mixers->usb_mixer[mixer].id & 0xff) << 8 | 0x0, /* wIndex */ - data, 64, 0); -} - -static const unsigned char *find_input_term_unit_by_id(const unsigned char *data, int length, int id) -{ - const unsigned char *interface_data = data; - while (length) - { - const unsigned char *interface_len = interface_data; - int sub_type = *(interface_len + 2); - if (sub_type == USB_INPUT_TERM_TYPE) - { - int unit_id = *(interface_len + 3); - if (unit_id == id) - { - return interface_len; - } - } - interface_data+=*interface_len; - length -= *interface_len; - } - return NULL; -} - -static const unsigned char *find_connected_feature_unit_by_id(const unsigned char *data, int length, int id) { - const unsigned char *interface_data = data; - while (length) - { - const unsigned char *interface_len = interface_data; - int sub_type = *(interface_len + 2); - if (sub_type == USB_FEATURE_UNIT_TYPE) { - //int unit_id = *(interface_len + 3); - int src_unit_id = *(interface_len + 4); - if (src_unit_id == id) { - return interface_len; - } - } - interface_data+=*interface_len; - length -= *interface_len; - } - return NULL; -} - -static const unsigned char *findUnit(const unsigned char *descs, int length, int id) -{ - const unsigned char *interface_data = descs; - while (length) - { - const unsigned char *interface_len = interface_data; - int bDescriptorType = *(interface_len + 1); - if (bDescriptorType == CS_INTERFACE) - { - int unit_id = *(interface_len + 3); - if (unit_id == id) - { - return interface_len; - } - } - interface_data+=*interface_len; - length -= *interface_len; - } - return NULL; -} - -static int get_num_mixer_units(const unsigned char *data, int length) { - const unsigned char *interface_data = data; - int interface_len = length; - int num_mixer_units_found = 0; - - while (interface_len) { - const unsigned char *interfaces = interface_data; - int interface_type = *(interfaces + 1); - int unit_type = *(interfaces + 2); - if (interface_type == USB_CS_INTERFACE && unit_type == USB_MIXER_UNIT_TYPE) { - num_mixer_units_found++; - } - interface_data+=*interfaces; - interface_len -= *interfaces; - } - - return num_mixer_units_found; -} - -static double dev_get_mixer_value(unsigned int mixer, unsigned int nodeId) -{ - short data; - unsigned char cs = 0; /* Device doesnt use CS for getting/setting mixer weights */ - usb_audio_class_get(CUR, cs, nodeId, usb_mixers->usb_mixer[mixer].id, 2,(unsigned char *) &data); - return ((double) data / 256); -} - -/* Populates min, max, res */ -static unsigned short dev_get_mixer_range(unsigned int mixer, unsigned int channel, - double *min, double *max, double *res) -{ - short data[64]; - - short min2, max2, res2; - - usb_audio_class_get(RANGE, MU_MIXER_CONTROL, channel, usb_mixers->usb_mixer[mixer].id, 8, (unsigned char *) data); - - min2 = data[1]; - max2 = data[2]; - res2 = data[3]; - //printf("%f, %f, %f\n", (double)min2/256, (double)max2/256, (double) res2/256); - *min = (double)min2/256; - *max = (double)max2/256; - *res = (double)res2/256; - - return 0; -} - -int dev_get_channel_map(int channel, int unitId) -{ - short data; - usb_audio_class_get(CUR, 0, channel, unitId, 2,(unsigned char *) &data); - return data; -} - -static int dev_set_channel_map(int channel, int val, int unitId) -{ - short value = val; - usb_audio_class_set(CUR, 0, channel, unitId, 1, (unsigned char *)&value); - return 0; -} - -static int mixer_update_all_nodes(unsigned int mixer_index) -{ - int i = 0; - int j = 0; - double min, max, res; - - for (i = 0; i < usb_mixers->usb_mixer[mixer_index].num_inputs; i++) - { - for (j = 0; j < usb_mixers->usb_mixer[mixer_index].num_outputs; j++) - { - dev_get_mixer_range(mixer_index, (i*usb_mixers->usb_mixer[mixer_index].num_outputs)+j, &min, &max, &res); - - usb_mixers->usb_mixer[mixer_index].nodes[(i*usb_mixers->usb_mixer[mixer_index].num_outputs)+j].min = min; - usb_mixers->usb_mixer[mixer_index].nodes[(i*usb_mixers->usb_mixer[mixer_index].num_outputs)+j].max = max; - usb_mixers->usb_mixer[mixer_index].nodes[(i*usb_mixers->usb_mixer[mixer_index].num_outputs)+j].res = res; - //printf("%f, %f, %f\n", min, max, res); - - usb_mixers->usb_mixer[mixer_index].nodes[(i*usb_mixers->usb_mixer[mixer_index].num_outputs)+j].weight = - dev_get_mixer_value(mixer_index, (i*usb_mixers->usb_mixer[mixer_index].num_outputs)+j); - } - } - return 0; -} - -/* Start at unit %id, find it in descs, keep recursively parsing up path(s) until get to Input Term and add strings */ -int addStrings(const unsigned char *data, int length, int mixer_index, int id, int chanCount) -{ - const unsigned char *currentUnitPtr = NULL; - - /* Find this unit in the descs */ - currentUnitPtr = findUnit(data, length, id); - - if(currentUnitPtr != NULL) - { - /* Check if unit is a Input term */ - if(*(currentUnitPtr+OFFSET_BDESCRIPTORSUBTYPE) == INPUT_TERMINAL) - { - - /* Get channel names */ -#ifdef DEBUG - printf("Input terminal found on path (ID: %d): %d channels, total: %d\n",*(currentUnitPtr+OFFSET_BUNITID), - *(currentUnitPtr+OFFSET_IT_BNRCHANNELS), chanCount); -#endif - - int iChannelNames = *(currentUnitPtr+OFFSET_IT_ICHANNELNAMES); - int wTerminalType = *(currentUnitPtr+OFFSET_IT_WTERMINALTYPE); - -#ifdef DEBUG - printf("iChannelNames: %d wTerminalType: %d\n", iChannelNames, wTerminalType); - - printf("Channels found:\n"); - -#endif - for(int i = 0; i < *(currentUnitPtr+OFFSET_IT_BNRCHANNELS); i++) - { - unsigned char mixer_input_name[USB_MIXER_MAX_NAME_LEN]; - memset(mixer_input_name, 0 ,USB_MIXER_MAX_NAME_LEN); - if (wTerminalType == 1) - { - strcpy(usb_mixers->usb_mixSel[mixer_index].inputStrings[chanCount], "DAW - "); - - //usb_mixers->channel_maps[usb_mixers->num_channel_maps].ctype = (enum usb_chan_type) USB_CHAN_OUT; - - usb_mixers->audChannelMap.numOutputs = usb_mixers->audChannelMap.numOutputs +1; - - usb_mixers->audChannelMap.map[usb_mixers->audChannelMap.numInputs].ctype = (enum usb_chan_type) USB_CHAN_OUT; - usb_mixers->usbChannelMap.map[usb_mixers->usbChannelMap.numInputs].ctype = (enum usb_chan_type) USB_CHAN_OUT; - - } - else - { - strcpy(usb_mixers->usb_mixSel[mixer_index].inputStrings[chanCount], "AUD - "); - - //usb_mixers->channel_maps[usb_mixers->num_channel_maps].ctype = (enum usb_chan_type) USB_CHAN_IN; - - usb_mixers->audChannelMap.map[usb_mixers->audChannelMap.numInputs].ctype = (enum usb_chan_type) USB_CHAN_IN; - usb_mixers->usbChannelMap.map[usb_mixers->usbChannelMap.numInputs].ctype = (enum usb_chan_type) USB_CHAN_IN; - - - usb_mixers->usbChannelMap.numOutputs = usb_mixers->usbChannelMap.numOutputs +1; - } - /* Get relevant string descriptor */ - libusb_get_string_descriptor_ascii(devh, iChannelNames+i, mixer_input_name, - USB_MIXER_MAX_NAME_LEN - strlen(usb_mixers->usb_mixSel[mixer_index].inputStrings[chanCount])); - - strcat(usb_mixers->usb_mixSel[mixer_index].inputStrings[chanCount], (char *)mixer_input_name); - - /* Add to channel mappers also */ - //strcat(usb_mixers->channel_maps[usb_mixers->num_channel_maps].name, (char *)mixer_input_name); - strcat(usb_mixers->audChannelMap.map[usb_mixers->audChannelMap.numInputs ].name, (char *)mixer_input_name); - strcat(usb_mixers->usbChannelMap.map[usb_mixers->audChannelMap.numInputs].name, (char *)mixer_input_name); - - usb_mixers->audChannelMap.numInputs = usb_mixers->audChannelMap.numInputs +1; - usb_mixers->usbChannelMap.numInputs = usb_mixers->usbChannelMap.numInputs +1; - - //usb_mixers->num_channel_maps = usb_mixers->num_channel_maps+1; - chanCount++; - } - -#ifdef DEBUG - int meh = chanCount - *(currentUnitPtr+OFFSET_IT_BNRCHANNELS); - for(int i = 0; i < *(currentUnitPtr+OFFSET_IT_BNRCHANNELS); i++) - { - printf("%d: %s\n", i,usb_mixers->usb_mixSel[mixer_index].inputStrings[meh+i]); - } - - printf("\n\n"); -#endif - } - else - { - /* Unit not a input terminal, keep going... */ - if(*(currentUnitPtr+OFFSET_BDESCRIPTORSUBTYPE) == FEATURE_UNIT) - { - chanCount = addStrings(data, length, mixer_index, *(currentUnitPtr+OFFSET_FU_BSOURCEID), chanCount); - } - else if(*(currentUnitPtr+OFFSET_BDESCRIPTORSUBTYPE) == EXTENSION_UNIT) - { - /* Multiple inputs for Extention units */ - for (int i = 0; i < *(currentUnitPtr+OFFSET_XU_BNRINPINS); i++) - { - chanCount = addStrings(data, length, mixer_index, *(currentUnitPtr+OFFSET_XU_BSOURCEID+i), chanCount); - } - } - else - { - fprintf(stderr,"ERROR: Currently don't support this unit: %d\n", - *(currentUnitPtr+OFFSET_BDESCRIPTORSUBTYPE)); - exit(1); - } - } - } - else - { - fprintf(stderr,"ERROR: Couldn't find unit %d in descs\n", id ); - exit(1); - } - - return chanCount; -} - -/* Returns the source of an mix sel output */ -static unsigned char get_mixsel_value(unsigned int mixer, unsigned int channel) -{ - - unsigned char bRequest = CUR; - //unsigned cs = CS_XU_SEL; - unsigned char cs = 1; /* Note, currently the host app configures all mix sel's indentically, so if we get one they all should match */ - unsigned char cn = channel; - unsigned short unitId = usb_mixers->usb_mixSel[mixer].id; - unsigned short wLength = 1; - unsigned char data[64]; - - usb_audio_class_get(CUR, cs, cn, unitId, wLength, (unsigned char *)data); - - return data[0]; -} - -static int get_mixer_info(const unsigned char *data, int length, unsigned int mixer_index, libusb_config_descriptor *config_desc) -{ - const unsigned char *interface_data = data; - int interface_len = length; - int num_mixer_units_found = 0; - //const unsigned char *current_input_term_unit_ptr = NULL; - //int current_input_term_unit_index = 0; - //const unsigned char *current_feature_unit_ptr = NULL; - int devChanInputCount = 0; - - while (interface_len) - { - const unsigned char *interfaces = interface_data; - int interface_type = *(interfaces + 1); /* bDescriptorType */ - int unit_type = *(interfaces + 2); /* bDescriptorSubType */ - - /* Look for a mixer unit */ - if (interface_type == USB_CS_INTERFACE && unit_type == USB_MIXER_UNIT_TYPE) - { - int unit_id = *(interfaces + 3); /* bUnitId */ - int bNrInPins = *(interfaces + 4); - int num_in = *(interfaces + 4); /* bNrInPins - NOTE This is pins NOT channels!! */ - /* Total number of inputs is the sum of the channel counts in the input - * clusters. We need to inspect the sources to gain channel counts */ - int chansIn = 0; -#ifdef DEBUG - printf("Found Mixer Unit %d with %d inputs\n", unit_id, bNrInPins); - printf("Inspecting mixer inputs... \n\n"); -#endif - /* For each input pin need to find out inspect its output cluster */ - for (int i = 1; i <= bNrInPins; i++) - { - int sourceId = *(interfaces+4+i); -#ifdef DEBUG - printf("baSourceID(%d): %d\n", i, sourceId); -#endif - - /* Find the unit in the config desc */ - int descsLength = length; - const unsigned char *descsData = data; - int found = 0; - int bDescriptorSubType; - int bDescriptorType; - int bUnitId; - - while(descsLength) - { - int currentLength = *descsData; - bDescriptorSubType = *(descsData + 2); - bDescriptorType = *(descsData + 1); - - if(bDescriptorType == USB_CS_INTERFACE) - { - if(bDescriptorSubType == USB_FEATURE_UNIT_TYPE || - bDescriptorSubType == USB_INPUT_TERM_TYPE || - bDescriptorSubType == EXTENSION_UNIT ) - { - bUnitId = *(descsData+3); - if(bUnitId == sourceId) - { - found = 1; - break; - } - } - } - - descsData+=currentLength; - descsLength -= currentLength; - } - - if(found) - { - int bNrChannelsOffset = 0; - int bNrChannels; - - /* We found the unit in the descs. Now inspect channel cluster */ -#ifdef DEBUG - printf("Found unit %d, type %d\n", bUnitId, bDescriptorSubType); -#endif - /* We are looking for bNrChannels in the descs, this is in a different location in desc depending - * on unit type */ - switch(bDescriptorSubType) - { - case USB_INPUT_TERM_TYPE: - bNrChannelsOffset = 8; - bNrChannels = *(descsData+bNrChannelsOffset); - break; - case EXTENSION_UNIT: - bNrChannelsOffset = 7 + *(descsData+6); - bNrChannels = *(descsData+bNrChannelsOffset); - - break; - default: - printf("ERR\n"); - exit(1); - break; - } -#ifdef DEBUG - printf("Output chan count: %d\n\n", bNrChannels); -#endif - chansIn += bNrChannels; - - } - else - { - fprintf(stderr,"ERROR: Mixer input connected to something we dont understand...\n"); - exit(1); - } - } - - /* get number of output channels straight from mixer unit descriptor: bNrChannels */ - int num_out = *(interfaces + 5 + num_in); -#ifdef DEBUG - printf("Mixer Unit parse complete: bUnitId: %d, Total Input Chans: %d, Output Chans: %d\n\n", unit_id, chansIn, num_out); -#endif - usb_mixers->usb_mixer[mixer_index].id = unit_id; - usb_mixers->usb_mixer[mixer_index].num_inputs = chansIn; - usb_mixers->usb_mixer[mixer_index].num_inPins = bNrInPins; - usb_mixers->usb_mixer[mixer_index].num_outputs = num_out; - - /* Go through all input pins */ - const unsigned char *in_unit_start_ptr = interfaces + 5; - // const unsigned char *currentUnitPtr = NULL; - // int current_input_term_unit_id = 0; - - /* We expect this to be a single input from an XU, but we'll keep it slightly generic here */ - for (int num = 0; num < usb_mixers->usb_mixer[mixer_index].num_inPins; num++) - { - /* Save source ID */ - usb_mixers->usb_mixer[mixer_index].input_connections[num] = *(in_unit_start_ptr+num); -#ifdef DEBUG - printf("Inspecting for Input Terms from mixer unit input pin %d (id: %d)\n", - num,usb_mixers->usb_mixer[mixer_index].input_connections[num]); -#endif - - devChanInputCount = addStrings(data, length, mixer_index, - usb_mixers->usb_mixer[mixer_index].input_connections[num], devChanInputCount); - - } - - /* The the first input pin at the mix select for the moment. - * probably should be checking if its an XU here */ - usb_mixers->usb_mixSel[mixer_index].id = usb_mixers->usb_mixer[mixer_index].input_connections[0]; - usb_mixers->usb_mixSel[mixer_index].numInputs = devChanInputCount; - usb_mixers->usb_mixSel[mixer_index].numOutputs = chansIn; - - /* Set up mixer output names */ - unsigned char mixer_output_name[USB_MIXER_MAX_NAME_LEN]; - unsigned int iChannelNames = *(interfaces + 10 + bNrInPins); - - for (int i = 0; i < usb_mixers->usb_mixer[mixer_index].num_outputs; i++) - { - /* Get relevant string descriptor */ - strcpy(usb_mixers->usb_mixer[mixer_index].output_names[i], "MIX - "); - libusb_get_string_descriptor_ascii(devh, iChannelNames+i, mixer_output_name, - USB_MIXER_MAX_NAME_LEN - strlen(usb_mixers->usb_mixSel[mixer_index].inputStrings[i])); - strcat(usb_mixers->usb_mixer[mixer_index].output_names[i], (char *)mixer_output_name); - } - } - - interface_data+=*interfaces; - interface_len -= *interfaces; - } - - return num_mixer_units_found; -} - -static int find_xmos_device(unsigned int id) -{ - libusb_device *dev; - libusb_device **devs; - int i = 0; - int found = 0; - - libusb_get_device_list(NULL, &devs); - - while ((dev = devs[i++]) != NULL) - { - struct libusb_device_descriptor desc; - libusb_get_device_descriptor(dev, &desc); - // printf("VID = 0x%x, PID = 0x%x\n", desc.idVendor, desc.idProduct); - if (desc.idVendor == XMOS_VID && is_supported_device(desc.idProduct)) - { - if (found == id) - { - if (libusb_open(dev, &devh) < 0) - { - return -1; - } - else - { - libusb_config_descriptor *config_desc = NULL; - libusb_get_active_config_descriptor(dev, &config_desc); - if (config_desc != NULL) - { - //unsigned int num_mixers_found = 0; - - usb_mixers->device_open = 1; - usb_mixers->num_usb_mixers = 0; - - for (int j = 0; j < config_desc->bNumInterfaces; j++) - { - const libusb_interface_descriptor *inter_desc = - ((libusb_interface *)&config_desc->interface[j])->altsetting; - - usb_mixers->num_usb_mixers += get_num_mixer_units(inter_desc->extra, inter_desc->extra_length); - } - - for (int j = 0; j < config_desc->bNumInterfaces; j++) - { - const libusb_interface_descriptor *inter_desc = - ((libusb_interface *)&config_desc->interface[j])->altsetting; - get_mixer_info(inter_desc->extra, inter_desc->extra_length, j, config_desc); - } - } - } - break; - } - found++; - } - } - - libusb_free_device_list(devs, 1); - - /* Init channel maps from device */ - for(int i = 0; i < usb_mixers->audChannelMap.numOutputs; i++) - { - usb_mixers->audChannelMap.map[i].cur = dev_get_channel_map(i, ID_XU_OUT); - - } - - for(int i = 0; i < usb_mixers->usbChannelMap.numOutputs; i++) - { - usb_mixers->usbChannelMap.map[i].cur = dev_get_channel_map(i, ID_XU_IN); - //printf("%d\n", usb_mixers->usbChannelMap.map[i].cur); - } - - /* Now add the mix outputs */ - for(int i = 0; i < usb_mixers->num_usb_mixers; i++) - { - for(int j = 0; j < usb_mixers->usb_mixer[i].num_outputs;j++) - { - //strcpy(usb_mixers->channel_maps[usb_mixers->num_channel_maps].name, usb_mixers->usb_mixer[i].output_names[j]); - //usb_mixers->channel_maps[usb_mixers->num_channel_maps].ctype = (enum usb_chan_type) USB_CHAN_MIXER; - //usb_mixers->num_channel_maps = usb_mixers->num_channel_maps+1; - - usb_mixers->audChannelMap.map[usb_mixers->audChannelMap.numInputs].ctype = (enum usb_chan_type) USB_CHAN_MIXER; - strcpy(usb_mixers->audChannelMap.map[usb_mixers->audChannelMap.numInputs].name, usb_mixers->usb_mixer[i].output_names[j]); - usb_mixers->audChannelMap.numInputs = usb_mixers->audChannelMap.numInputs +1; - - usb_mixers->usbChannelMap.map[usb_mixers->usbChannelMap.numInputs].ctype = (enum usb_chan_type) USB_CHAN_MIXER; - strcpy(usb_mixers->usbChannelMap.map[usb_mixers->usbChannelMap.numInputs].name, usb_mixers->usb_mixer[i].output_names[j]); - usb_mixers->usbChannelMap.numInputs = usb_mixers->usbChannelMap.numInputs +1; - } - } - - if(devh) - { - /* Populate mixer input strings */ - for(int i = 0; i < usb_mixers->num_usb_mixers; i++) - { - mixer_update_all_nodes(i); - - /* Get current each mixer input and populate channel number state and strings from device */ - for (int j = 0; j < usb_mixers->usb_mixSel[i].numOutputs; j++) - { - /* Get value from device */ - int inputChan = get_mixsel_value(i, j); - - usb_mixers->usb_mixSel[i].state[j] = inputChan; - - /* Look up channel string */ - strcpy(usb_mixers->usb_mixer[i].input_names[j], usb_mixers->usb_mixSel[i].inputStrings[inputChan]); - } - } - } - - return devh ? 0 : -1; -} - -// End of libusb interface functions - -int usb_mixer_connect() -{ - int result = 0; - - // Allocate internal storage - usb_mixers = (usb_mixer_handle *)malloc(sizeof(usb_mixer_handle)); - memset(usb_mixers, 0, sizeof(usb_mixer_handle)); - - result = libusb_init(NULL); - if (result < 0) - { - // printf("libusb_init failure\n"); - return USB_MIXER_FAILURE; - } - - result = find_xmos_device(0); - if (result < 0) - { - // printf("find_xmos_device failure\n"); - return USB_MIXER_FAILURE; - } - - return USB_MIXER_SUCCESS; -} - -int usb_mixer_disconnect() { - libusb_close(devh); - - libusb_exit(NULL); - - free(usb_mixers); - - return USB_MIXER_SUCCESS; -} - -/* Getter for num_usb_mixers */ -int usb_mixer_get_num_mixers() -{ - return usb_mixers->num_usb_mixers; -} - -int usb_mixer_get_num_outputs(unsigned int mixer) -{ - return usb_mixers->usb_mixer[mixer].num_outputs; -} - -int usb_mixer_get_num_inputs(unsigned int mixer) -{ - return usb_mixers->usb_mixer[mixer].num_inputs; -} - -int usb_mixer_get_layout(unsigned int mixer, unsigned int *inputs, unsigned int *outputs) { - *inputs = usb_mixers->usb_mixer[mixer].num_inputs; - *outputs = usb_mixers->usb_mixer[mixer].num_outputs; - return 0; -} - -/* MixSel getters and setters */ -char *usb_mixsel_get_input_string(unsigned int mixer, unsigned int input) -{ - return usb_mixers->usb_mixSel[mixer].inputStrings[input]; -} - -int usb_mixsel_get_input_count(unsigned int mixer) -{ - return usb_mixers->usb_mixSel[mixer].numInputs; -} - -int usb_mixsel_get_output_count(unsigned int mixer) -{ - return usb_mixers->usb_mixSel[mixer].numOutputs; -} - -char *usb_mixer_get_input_name(unsigned int mixer, unsigned int input) -{ - return usb_mixers->usb_mixer[mixer].input_names[input]; -} - -char *usb_mixer_get_output_name(unsigned int mixer, unsigned int output) -{ - return usb_mixers->usb_mixer[mixer].output_names[output]; -} - -unsigned char usb_mixsel_get_state(unsigned int mixer, unsigned int channel) -{ - return usb_mixers->usb_mixSel[mixer].state[channel]; -} - -void usb_mixsel_set_state(unsigned int mixer, unsigned int dst, unsigned int src) -{ - // Write to device - // Note, we are updating inputs to all mixers here with a hard-coded 0, though the device allows - // for separate input mapping per mixer - unsigned bRequest = CUR; - unsigned cs = 0; - unsigned cn = usb_mixers->usb_mixSel[mixer].id; - unsigned wLength = 1; - usb_audio_class_set(CUR, 0, dst, usb_mixers->usb_mixSel[mixer].id, wLength, (unsigned char *)&src); - - // Update object state - usb_mixers->usb_mixSel[mixer].state[dst] = src; - - // Update local object strings - // TODO we don't really need to store strings since we can look them up...*/ - strcpy(usb_mixers->usb_mixer[mixer].input_names[dst], usb_mixers->usb_mixSel[mixer].inputStrings[src]); -} - -double usb_mixer_get_value(unsigned int mixer, unsigned int nodeId) -{ - return (double)usb_mixers->usb_mixer[mixer].nodes[nodeId].weight; -} - -double usb_mixer_get_res(unsigned int mixer, unsigned int nodeId) -{ - return (double)usb_mixers->usb_mixer[mixer].nodes[nodeId].res; -} - -double usb_mixer_get_min(unsigned int mixer, unsigned int nodeId) -{ - return (double)usb_mixers->usb_mixer[mixer].nodes[nodeId].min; -} - -double usb_mixer_get_max(unsigned int mixer, unsigned int nodeId) -{ - return (double)usb_mixers->usb_mixer[mixer].nodes[nodeId].max; -} - -int usb_mixer_set_value(unsigned int mixer, unsigned int nodeId, double val) -{ - /* check if update required */ - if(usb_mixers->usb_mixer[mixer].nodes[nodeId].weight != val) - { - /* update local object */ - usb_mixers->usb_mixer[mixer].nodes[nodeId].weight= val; - - /* write to device */ - short value = (short) (val * 256); - - unsigned char cs = 0; /* Device doesnt use CS for setting/getting mixer nodes */ - unsigned char cn = nodeId & 0xff; - usb_audio_class_set(CUR, cs, cn, usb_mixers->usb_mixer[mixer].id, 2, (unsigned char *)&value); - - } - return 0; -} - -int usb_mixer_get_range(unsigned int mixer, unsigned int mixer_unit, int *min, int *max, int *res) -{ - // range 0x02 - return 0; -} - -int usb_get_usb_channel_map(int channel) -{ - return usb_mixers->usbChannelMap.map[channel].cur; -} - -int usb_get_aud_channel_map(int channel) -{ - return usb_mixers->audChannelMap.map[channel].cur; -} - -int usb_set_aud_channel_map(int channel, int val) -{ - /* Check if update required */ - if(usb_mixers->audChannelMap.map[channel].cur != val) - { - /* Update local object */ - usb_mixers->audChannelMap.map[channel].cur = val; - - /* Write setting to dev */ - dev_set_channel_map(channel, val, ID_XU_OUT); - } - return 0; -} - -int usb_set_usb_channel_map(int channel, int val) -{ - /* Check if update required */ - if(usb_mixers->usbChannelMap.map[channel].cur != val) - { - /* Update local object */ - usb_mixers->usbChannelMap.map[channel].cur = val; - - /* Write setting to dev */ - dev_set_channel_map(channel, val, ID_XU_IN); - } - return 0; -} - -enum usb_chan_type usb_get_aud_channel_map_type(int channel) -{ - return usb_mixers->audChannelMap.map[channel].ctype; -} - -enum usb_chan_type usb_get_usb_channel_map_type(int channel) -{ - return usb_mixers->usbChannelMap.map[channel].ctype; -} - -char *usb_get_aud_channel_map_name(int channel) -{ - return usb_mixers->audChannelMap.map[channel].name; -} - -char *usb_get_usb_channel_map_name(int channel) -{ - return usb_mixers->usbChannelMap.map[channel].name; -} - -int usb_get_aud_channel_map_num_outputs() -{ - return usb_mixers->audChannelMap.numOutputs; -} -int usb_get_usb_channel_map_num_outputs() -{ - return usb_mixers->usbChannelMap.numOutputs; -} - -int usb_get_aud_channel_map_num_inputs() -{ - return usb_mixers->audChannelMap.numInputs; -} -int usb_get_usb_channel_map_num_inputs() -{ - return usb_mixers->usbChannelMap.numInputs; -} - diff --git a/host_usb_mixer_control/Win/usb_mixer.cpp b/host_usb_mixer_control/Win/usb_mixer.cpp deleted file mode 100644 index f91e04fc..00000000 --- a/host_usb_mixer_control/Win/usb_mixer.cpp +++ /dev/null @@ -1,924 +0,0 @@ -// Copyright 2022-2023 XMOS LIMITED. -// This Software is subject to the terms of the XMOS Public Licence: Version 1. - -#include -#include -#include -#include "usb_mixer.h" -#include "global.h" - -//driver interface -TUsbAudioApiDll gDrvApi; - -//################################### - -/* Note: this is all quite generic and could be simplified ALOT for a specific design */ - -// TODO we dont really need to store mixer input strings -// Currently res, max, min dont get populated - -#define XMOS_VID 0x20b1 -#define XMOS_L1_AUDIO2_PID 0x0002 -#define XMOS_L1_AUDIO1_PID 0x0003 -#define XMOS_L2_AUDIO2_PID 0x0004 - -#define USB_REQUEST_TO_DEV 0x21 /* D7 Data direction: 0 (Host to device) - * D6:5 Type: 01 (Class) - * D4:0 Receipient: 1 (Interface) */ -#define USB_REQUEST_FROM_DEV 0xa1 - -#define USB_CS_INTERFACE 0x24 -#define USB_INPUT_TERM_TYPE 0x02 -#define USB_MIXER_UNIT_TYPE 0x04 -#define USB_FEATURE_UNIT_TYPE 0x06 - -#define INPUT_TERMINAL USB_INPUT_TERM_TYPE -#define EXTENSION_UNIT 0x9 -#define CS_INTERFACE USB_CS_INTERFACE -#define FEATURE_UNIT 0x06 - -#define CS_XU_SEL 0x6 -#define MU_MIXER_CONTROL 0x1 - - // Output from PC -#define USB_STREAMING 0x01 -// Input to device -//#define MICROPHONE 0x02 - -#define ID_XU_OUT 51 -#define ID_XU_IN 52 - -#define OFFSET_BLENGTH 0 -#define OFFSET_BDESCRIPTORTYPE 1 -#define OFFSET_BDESCRIPTORSUBTYPE 2 -#define OFFSET_BUNITID 3 - -#define OFFSET_FU_BSOURCEID 4 - -#define OFFSET_XU_BNRINPINS 6 -#define OFFSET_XU_BSOURCEID 7 - -#define OFFSET_IT_WTERMINALTYPE 5 -#define OFFSET_IT_BNRCHANNELS 8 -#define OFFSET_IT_ICHANNELNAMES 13 - -typedef struct -{ - double min; - double max; - double res; - double weight; -} mixer_node; - -typedef struct -{ - unsigned int id; - unsigned int num_inputs; - char input_names[USB_MIXER_INPUTS][USB_MIXER_MAX_NAME_LEN]; /* Current mixer input names- - * we dont really need to store these */ - int input_connections[USB_MIXER_INPUTS]; - unsigned int num_outputs; - char output_names[USB_MIXER_INPUTS][USB_MIXER_MAX_NAME_LEN]; - unsigned int num_inPins; - mixer_node nodes[USB_MIXER_INPUTS * USB_MIXER_OUTPUTS]; -} usb_mixer_device; - -typedef struct { - int cur; - int default_value; - char name[USB_MIXER_MAX_NAME_LEN]; - enum usb_chan_type ctype; -} channel_map_node; - -typedef struct { - int numInputs; - int numOutputs; - channel_map_node map[USB_MAX_CHANNEL_MAP_SIZE]; -} channel_mapp; - -typedef struct -{ - unsigned int id; - unsigned int numInputs; - char inputStrings[USB_MIXER_INPUTS * 4][USB_MIXER_MAX_NAME_LEN]; /* Complete list of all possible inputs */ - unsigned int numOutputs; - unsigned int state[USB_MIXER_INPUTS]; -} t_usb_mixSel; - -typedef struct { - unsigned int device_open; - unsigned int num_usb_mixers; - usb_mixer_device usb_mixer[USB_MIXERS]; - t_usb_mixSel usb_mixSel[USB_MIXERS]; - - channel_mapp audChannelMap; - channel_mapp usbChannelMap; - - -} usb_mixer_handle; - -static usb_mixer_handle* usb_mixers = NULL; - -static TUsbAudioHandle h; - -/* Issue a generic control/class GET request to a specific unit in the Audio Interface */ -int usb_audio_class_get(unsigned char bRequest, unsigned char cs, unsigned char cn, unsigned short unitID, unsigned short wLength, unsigned char* data) -{ - return gDrvApi.TUSBAUDIO_AudioControlRequestGet(h, - unitID, - bRequest, - cs, - cn, - data, - wLength, - NULL, - 1000); -} - -/* Issue a generic control/class SET request to a specific unit in the Audio Interface */ -int usb_audio_class_set(unsigned char bRequest, unsigned char cs, unsigned char cn, unsigned short unitID, unsigned short wLength, unsigned char* data) -{ - return gDrvApi.TUSBAUDIO_AudioControlRequestSet(h, - unitID, - bRequest, - cs, - cn, - data, - wLength, - NULL, - 1000); -} - -/* Note, this never get cached in an object since it can change on the device side */ -int usb_mixer_mem_get(unsigned int mixer, unsigned offset, unsigned char* data) -{ - return gDrvApi.TUSBAUDIO_AudioControlRequestGet(h, - usb_mixers->usb_mixer[mixer].id, - MEM, - 0, // cs - offset, //was cn - &data, - 64, - NULL, - 1000); -} - -static const unsigned char* find_input_term_unit_by_id(const unsigned char* data, int length, int id) -{ - const unsigned char* interface_data = data; - while (length) - { - const unsigned char* interface_len = interface_data; - int sub_type = *(interface_len + 2); - if (sub_type == USB_INPUT_TERM_TYPE) - { - int unit_id = *(interface_len + 3); - if (unit_id == id) - { - return interface_len; - } - } - interface_data += *interface_len; - length -= *interface_len; - } - return NULL; -} - -static const unsigned char* find_connected_feature_unit_by_id(const unsigned char* data, int length, int id) { - const unsigned char* interface_data = data; - while (length) - { - const unsigned char* interface_len = interface_data; - int sub_type = *(interface_len + 2); - if (sub_type == USB_FEATURE_UNIT_TYPE) { - //int unit_id = *(interface_len + 3); - int src_unit_id = *(interface_len + 4); - if (src_unit_id == id) { - return interface_len; - } - } - interface_data += *interface_len; - length -= *interface_len; - } - return NULL; -} - -static const unsigned char* findUnit(const unsigned char* descs, int length, int id) -{ - const unsigned char* interface_data = descs; - while (length) - { - const unsigned char* interface_len = interface_data; - int bDescriptorType = *(interface_len + 1); - if (bDescriptorType == CS_INTERFACE) - { - int unit_id = *(interface_len + 3); - if (unit_id == id) - { - return interface_len; - } - } - interface_data += *interface_len; - length -= *interface_len; - } - return NULL; -} - -static int get_num_mixer_units(const unsigned char* data, int length) { - const unsigned char* interface_data = data; - int interface_len = length; - int num_mixer_units_found = 0; - - while (interface_len) { - const unsigned char* interfaces = interface_data; - int interface_type = *(interfaces + 1); - int unit_type = *(interfaces + 2); - if (interface_type == USB_CS_INTERFACE && unit_type == USB_MIXER_UNIT_TYPE) { - num_mixer_units_found++; - } - interface_data += *interfaces; - interface_len -= *interfaces; - } - - return num_mixer_units_found; -} - -static double dev_get_mixer_value(unsigned int mixer, unsigned int nodeId) -{ - // MU_MIXER_CONTROL 0x01 - short data; - usb_audio_class_get(CUR, 0x01 << 8, nodeId, usb_mixers->usb_mixer[mixer].id, 2, (unsigned char*)&data); - return ((double)data / 256); -} - -/* Populates min, max, res */ -static unsigned short dev_get_mixer_range(unsigned int mixer, unsigned int channel, - double* min, double* max, double* res) -{ - short data[64]; - - short min2, max2, res2; - - usb_audio_class_get(RANGE, MU_MIXER_CONTROL, channel, usb_mixers->usb_mixer[mixer].id, 8, (unsigned char*)data); - - min2 = data[1]; - max2 = data[2]; - res2 = data[3]; - //printf("%f, %f, %f\n", (double)min2/256, (double)max2/256, (double) res2/256); - *min = (double)min2 / 256; - *max = (double)max2 / 256; - *res = (double)res2 / 256; - - return 0; -} - -int dev_get_channel_map(int channel, int unitId) -{ - short data; - usb_audio_class_get(CUR, 0, channel, unitId, 2, (unsigned char*)&data); - return data; -} - -static int dev_set_channel_map(int channel, int val, int unitId) -{ - short value = val; - usb_audio_class_set(CUR, 0, channel, unitId, 1, (unsigned char*)&value); - return 0; -} - -static int mixer_update_all_nodes(unsigned int mixer_index) -{ - int i = 0; - int j = 0; - double min, max, res; - - for (i = 0; i < usb_mixers->usb_mixer[mixer_index].num_inputs; i++) - { - for (j = 0; j < usb_mixers->usb_mixer[mixer_index].num_outputs; j++) - { - dev_get_mixer_range(mixer_index, (i * usb_mixers->usb_mixer[mixer_index].num_outputs) + j, &min, &max, &res); - - usb_mixers->usb_mixer[mixer_index].nodes[(i * usb_mixers->usb_mixer[mixer_index].num_outputs) + j].min = min; - usb_mixers->usb_mixer[mixer_index].nodes[(i * usb_mixers->usb_mixer[mixer_index].num_outputs) + j].max = max; - usb_mixers->usb_mixer[mixer_index].nodes[(i * usb_mixers->usb_mixer[mixer_index].num_outputs) + j].res = res; - //printf("%f, %f, %f\n", min, max, res); - - usb_mixers->usb_mixer[mixer_index].nodes[(i * usb_mixers->usb_mixer[mixer_index].num_outputs) + j].weight = - dev_get_mixer_value(mixer_index, (i * usb_mixers->usb_mixer[mixer_index].num_outputs) + j); - } - } - return 0; -} - -/* Start at unit %id, find it in descs, keep recursively parsing up path(s) until get to Input Term and add strings */ -int addStrings(const unsigned char* data, int length, int mixer_index, int id, int chanCount) -{ - const unsigned char* currentUnitPtr = NULL; - - /* Find this unit in the descs */ - currentUnitPtr = findUnit(data, length, id); - TUsbAudioStatus st; - - if (currentUnitPtr != NULL) - { - /* Check if unit is a Input term */ - if (*(currentUnitPtr + OFFSET_BDESCRIPTORSUBTYPE) == INPUT_TERMINAL) - { - - /* Get channel names */ -#ifdef DEBUG - printf("Input terminal found on path (ID: %d): %d channels, total: %d\n", *(currentUnitPtr + OFFSET_BUNITID), - *(currentUnitPtr + OFFSET_IT_BNRCHANNELS), chanCount); -#endif - - int iChannelNames = *(currentUnitPtr + OFFSET_IT_ICHANNELNAMES); - int wTerminalType = *(currentUnitPtr + OFFSET_IT_WTERMINALTYPE); - -#ifdef DEBUG - printf("iChannelNames: %d wTerminalType: %d\n", iChannelNames, wTerminalType); - - printf("Channels found:\n"); - -#endif - for (int i = 0; i < *(currentUnitPtr + OFFSET_IT_BNRCHANNELS); i++) - { - WCHAR mixer_input_name[USB_MIXER_MAX_NAME_LEN]; - char mixer_input_name_copy[USB_MIXER_MAX_NAME_LEN]; - if (wTerminalType == 1) - { - strcpy(usb_mixers->usb_mixSel[mixer_index].inputStrings[chanCount], "DAW - "); - - //usb_mixers->channel_maps[usb_mixers->num_channel_maps].ctype = (enum usb_chan_type) USB_CHAN_OUT; - - usb_mixers->audChannelMap.numOutputs = usb_mixers->audChannelMap.numOutputs + 1; - - usb_mixers->audChannelMap.map[usb_mixers->audChannelMap.numInputs].ctype = (enum usb_chan_type)USB_CHAN_OUT; - usb_mixers->usbChannelMap.map[usb_mixers->usbChannelMap.numInputs].ctype = (enum usb_chan_type)USB_CHAN_OUT; - - } - else - { - strcpy(usb_mixers->usb_mixSel[mixer_index].inputStrings[chanCount], "AUD - "); - - //usb_mixers->channel_maps[usb_mixers->num_channel_maps].ctype = (enum usb_chan_type) USB_CHAN_IN; - - usb_mixers->audChannelMap.map[usb_mixers->audChannelMap.numInputs].ctype = (enum usb_chan_type)USB_CHAN_IN; - usb_mixers->usbChannelMap.map[usb_mixers->usbChannelMap.numInputs].ctype = (enum usb_chan_type)USB_CHAN_IN; - - - usb_mixers->usbChannelMap.numOutputs = usb_mixers->usbChannelMap.numOutputs + 1; - } - /* Get relevant string descriptor */ - //libusb_get_string_descriptor_ascii(devh, iChannelNames+i, mixer_input_name, USB_MIXER_MAX_NAME_LEN - strlen(usb_mixers->usb_mixSel[mixer_index].inputStrings[chanCount])); - st = gDrvApi.TUSBAUDIO_GetUsbStringDescriptorString(h, iChannelNames + i, 0, mixer_input_name, USB_MIXER_MAX_NAME_LEN - strlen(usb_mixers->usb_mixSel[mixer_index].inputStrings[chanCount])); - if (TSTATUS_SUCCESS != st) { - return USB_MIXER_FAILURE; - } - wcstombs(mixer_input_name_copy, mixer_input_name, USB_MIXER_MAX_NAME_LEN); - - strcat(usb_mixers->usb_mixSel[mixer_index].inputStrings[chanCount], (char*)mixer_input_name_copy); - - /* Add to channel mappers also */ - //strcat(usb_mixers->channel_maps[usb_mixers->num_channel_maps].name, (char *)mixer_input_name_copy); - strcat(usb_mixers->audChannelMap.map[usb_mixers->audChannelMap.numInputs].name, (char*)mixer_input_name_copy); - strcat(usb_mixers->usbChannelMap.map[usb_mixers->audChannelMap.numInputs].name, (char*)mixer_input_name_copy); - - usb_mixers->audChannelMap.numInputs = usb_mixers->audChannelMap.numInputs + 1; - usb_mixers->usbChannelMap.numInputs = usb_mixers->usbChannelMap.numInputs + 1; - - //usb_mixers->num_channel_maps = usb_mixers->num_channel_maps+1; - chanCount++; - } - -#ifdef DEBUG - int meh = chanCount - *(currentUnitPtr + OFFSET_IT_BNRCHANNELS); - for (int i = 0; i < *(currentUnitPtr + OFFSET_IT_BNRCHANNELS); i++) - { - printf("%d: %s\n", i, usb_mixers->usb_mixSel[mixer_index].inputStrings[meh + i]); - } - - printf("\n\n"); -#endif - } - else - { - /* Unit not a input terminal, keep going... */ - if (*(currentUnitPtr + OFFSET_BDESCRIPTORSUBTYPE) == FEATURE_UNIT) - { - chanCount = addStrings(data, length, mixer_index, *(currentUnitPtr + OFFSET_FU_BSOURCEID), chanCount); - } - else if (*(currentUnitPtr + OFFSET_BDESCRIPTORSUBTYPE) == EXTENSION_UNIT) - { - /* Multiple inputs for Extention units */ - for (int i = 0; i < *(currentUnitPtr + OFFSET_XU_BNRINPINS); i++) - { - chanCount = addStrings(data, length, mixer_index, *(currentUnitPtr + OFFSET_XU_BSOURCEID + i), chanCount); - } - } - else - { - fprintf(stderr, "ERROR: Currently don't support this unit: %d\n", - *(currentUnitPtr + OFFSET_BDESCRIPTORSUBTYPE)); - exit(1); - } - } - } - else - { - fprintf(stderr, "ERROR: Couldn't find unit %d in descs\n", id); - exit(1); - } - - return chanCount; -} - -/* Returns the source of an mix sel output */ -static unsigned char get_mixsel_value(unsigned int mixer, unsigned int channel) -{ - unsigned char data[64]; - usb_audio_class_get(CUR, CS_XU_SEL, channel, usb_mixers->usb_mixSel[mixer].id, 1, (unsigned char*)data); - return data[0]; -} - -static int get_mixer_info(const unsigned char* data, int length, unsigned int mixer_index) -{ - const unsigned char* interface_data = data; - int interface_len = length; - int num_mixer_units_found = 0; - //const unsigned char *current_input_term_unit_ptr = NULL; - //int current_input_term_unit_index = 0; - //const unsigned char *current_feature_unit_ptr = NULL; - int devChanInputCount = 0; - - while (interface_len) - { - const unsigned char* interfaces = interface_data; - int interface_type = *(interfaces + 1); /* bDescriptorType */ - int unit_type = *(interfaces + 2); /* bDescriptorSubType */ - - /* Look for a mixer unit */ - if (interface_type == USB_CS_INTERFACE && unit_type == USB_MIXER_UNIT_TYPE) - { - int unit_id = *(interfaces + 3); /* bUnitId */ - int bNrInPins = *(interfaces + 4); - int num_in = *(interfaces + 4); /* bNrInPins - NOTE This is pins NOT channels!! */ - /* Total number of inputs is the sum of the channel counts in the input - * clusters. We need to inspect the sources to gain channel counts */ - int chansIn = 0; -#ifdef DEBUG - printf("Found Mixer Unit %d with %d inputs\n", unit_id, bNrInPins); - printf("Inspecting mixer inputs... \n\n"); -#endif - /* For each input pin need to find out inspect its output cluster */ - for (int i = 1; i <= bNrInPins; i++) - { - int sourceId = *(interfaces + 4 + i); -#ifdef DEBUG - printf("baSourceID(%d): %d\n", i, sourceId); -#endif - - /* Find the unit in the config desc */ - int descsLength = length; - const unsigned char* descsData = data; - int found = 0; - int bDescriptorSubType; - int bDescriptorType; - int bUnitId; - - while (descsLength) - { - int currentLength = *descsData; - bDescriptorSubType = *(descsData + 2); - bDescriptorType = *(descsData + 1); - - if (bDescriptorType == USB_CS_INTERFACE) - { - if (bDescriptorSubType == USB_FEATURE_UNIT_TYPE || - bDescriptorSubType == USB_INPUT_TERM_TYPE || - bDescriptorSubType == EXTENSION_UNIT) - { - bUnitId = *(descsData + 3); - if (bUnitId == sourceId) - { - found = 1; - break; - } - } - } - - descsData += currentLength; - descsLength -= currentLength; - } - - if (found) - { - int bNrChannelsOffset = 0; - int bNrChannels; - - /* We found the unit in the descs. Now inspect channel cluster */ -#ifdef DEBUG - printf("Found unit %d, type %d\n", bUnitId, bDescriptorSubType); -#endif - /* We are looking for bNrChannels in the descs, this is in a different location in desc depending - * on unit type */ - switch (bDescriptorSubType) - { - case USB_INPUT_TERM_TYPE: - bNrChannelsOffset = 8; - bNrChannels = *(descsData + bNrChannelsOffset); - break; - case EXTENSION_UNIT: - bNrChannelsOffset = 7 + *(descsData + 6); - bNrChannels = *(descsData + bNrChannelsOffset); - - break; - default: - printf("ERR\n"); - exit(1); - break; - } -#ifdef DEBUG - printf("Output chan count: %d\n\n", bNrChannels); -#endif - chansIn += bNrChannels; - - } - else - { - fprintf(stderr, "ERROR: Mixer input connected to something we dont understand...\n"); - exit(1); - } - } - - /* get number of output channels straight from mixer unit descriptor: bNrChannels */ - int num_out = *(interfaces + 5 + num_in); -#ifdef DEBUG - printf("Mixer Unit parse complete: bUnitId: %d, Total Input Chans: %d, Output Chans: %d\n\n", unit_id, chansIn, num_out); -#endif - usb_mixers->usb_mixer[mixer_index].id = unit_id; - usb_mixers->usb_mixer[mixer_index].num_inputs = chansIn; - usb_mixers->usb_mixer[mixer_index].num_inPins = bNrInPins; - usb_mixers->usb_mixer[mixer_index].num_outputs = num_out; - - /* Go through all input pins */ - const unsigned char* in_unit_start_ptr = interfaces + 5; - // const unsigned char *currentUnitPtr = NULL; - // int current_input_term_unit_id = 0; - - /* We expect this to be a single input from an XU, but we'll keep it slightly generic here */ - for (int num = 0; num < usb_mixers->usb_mixer[mixer_index].num_inPins; num++) - { - /* Save source ID */ - usb_mixers->usb_mixer[mixer_index].input_connections[num] = *(in_unit_start_ptr + num); -#ifdef DEBUG - printf("Inspecting for Input Terms from mixer unit input pin %d (id: %d)\n", - num, usb_mixers->usb_mixer[mixer_index].input_connections[num]); -#endif - - devChanInputCount = addStrings(data, length, mixer_index, - usb_mixers->usb_mixer[mixer_index].input_connections[num], devChanInputCount); - - } - - /* The the first input pin at the mix select for the moment. - * probably should be checking if its an XU here */ - usb_mixers->usb_mixSel[mixer_index].id = usb_mixers->usb_mixer[mixer_index].input_connections[0]; - usb_mixers->usb_mixSel[mixer_index].numInputs = devChanInputCount; - usb_mixers->usb_mixSel[mixer_index].numOutputs = chansIn; - - /* Set up mixer output names */ - WCHAR mixer_output_name[USB_MIXER_MAX_NAME_LEN]; - char mixer_output_name_copy[USB_MIXER_MAX_NAME_LEN]; - unsigned int iChannelNames = *(interfaces + 10 + bNrInPins); - - for (int i = 0; i < usb_mixers->usb_mixer[mixer_index].num_outputs; i++) - { - /* Get relevant string descriptor */ - strcpy(usb_mixers->usb_mixer[mixer_index].output_names[i], "MIX - "); - // libusb_get_string_descriptor_ascii(devh, iChannelNames+i, mixer_output_name, USB_MIXER_MAX_NAME_LEN - strlen(usb_mixers->usb_mixSel[mixer_index].inputStrings[i])); - TUsbAudioStatus st = gDrvApi.TUSBAUDIO_GetUsbStringDescriptorString(h, iChannelNames + i, 0, mixer_output_name, USB_MIXER_MAX_NAME_LEN - strlen(usb_mixers->usb_mixSel[mixer_index].inputStrings[i])); - if (TSTATUS_SUCCESS != st) { - return USB_MIXER_FAILURE; - } - wcstombs(mixer_output_name_copy, mixer_output_name, USB_MIXER_MAX_NAME_LEN); - // strcat(usb_mixers->usb_mixer[mixer_index].output_names[i], (char *)mixer_output_name); - strcat(usb_mixers->usb_mixer[mixer_index].output_names[i], mixer_output_name_copy); - } - } - - interface_data += *interfaces; - interface_len -= *interfaces; - } - - return num_mixer_units_found; -} - -static int find_xmos_device(unsigned int id) { - //libusb_device *dev; - //libusb_device **devs; - int i = 0; - int found = 0; - TUsbAudioStatus st; - - unsigned int devcnt = gDrvApi.TUSBAUDIO_GetDeviceCount(); - if (0 == devcnt) { - return USB_MIXER_FAILURE; - } - - st = gDrvApi.TUSBAUDIO_OpenDeviceByIndex(0, &h); - if (TSTATUS_SUCCESS != st) { - h = 0; - // skip - } - else { - unsigned int numBytes = 0; - unsigned char descBuffer[64 * 1024]; - - st = gDrvApi.TUSBAUDIO_GetUsbConfigDescriptor(h, descBuffer, 64 * 1024, &numBytes); - if (TSTATUS_SUCCESS != st) { - return USB_MIXER_FAILURE; - } - - usb_mixers->num_usb_mixers = get_num_mixer_units(descBuffer, numBytes); - - get_mixer_info(descBuffer, numBytes, 0); - - /* Init channel maps from device */ - for (int i = 0; i < usb_mixers->audChannelMap.numOutputs; i++) - { - usb_mixers->audChannelMap.map[i].cur = dev_get_channel_map(i, ID_XU_OUT); - - } - - for (int i = 0; i < usb_mixers->usbChannelMap.numOutputs; i++) - { - usb_mixers->usbChannelMap.map[i].cur = dev_get_channel_map(i, ID_XU_IN); - //printf("%d\n", usb_mixers->usbChannelMap.map[i].cur); - } - - /* Now add the mix outputs */ - for (int i = 0; i < usb_mixers->num_usb_mixers; i++) - { - for (int j = 0; j < usb_mixers->usb_mixer[i].num_outputs; j++) - { - //strcpy(usb_mixers->channel_maps[usb_mixers->num_channel_maps].name, usb_mixers->usb_mixer[i].output_names[j]); - //usb_mixers->channel_maps[usb_mixers->num_channel_maps].ctype = (enum usb_chan_type) USB_CHAN_MIXER; - //usb_mixers->num_channel_maps = usb_mixers->num_channel_maps+1; - - usb_mixers->audChannelMap.map[usb_mixers->audChannelMap.numInputs].ctype = (enum usb_chan_type)USB_CHAN_MIXER; - strcpy(usb_mixers->audChannelMap.map[usb_mixers->audChannelMap.numInputs].name, usb_mixers->usb_mixer[i].output_names[j]); - usb_mixers->audChannelMap.numInputs = usb_mixers->audChannelMap.numInputs + 1; - - usb_mixers->usbChannelMap.map[usb_mixers->usbChannelMap.numInputs].ctype = (enum usb_chan_type)USB_CHAN_MIXER; - strcpy(usb_mixers->usbChannelMap.map[usb_mixers->usbChannelMap.numInputs].name, usb_mixers->usb_mixer[i].output_names[j]); - usb_mixers->usbChannelMap.numInputs = usb_mixers->usbChannelMap.numInputs + 1; - } - } - - if (h) - { - /* Populate mixer input strings */ - for (int i = 0; i < usb_mixers->num_usb_mixers; i++) - { - mixer_update_all_nodes(i); - - /* Get current each mixer input and populate channel number state and strings from device */ - for (int j = 0; j < usb_mixers->usb_mixSel[i].numOutputs; j++) - { - /* Get value from device */ - int inputChan = get_mixsel_value(i, j); - - usb_mixers->usb_mixSel[i].state[j] = inputChan; - - /* Look up channel string */ - strcpy(usb_mixers->usb_mixer[i].input_names[j], usb_mixers->usb_mixSel[i].inputStrings[inputChan]); - } - } - } - } - - return h ? 0 : -1; -} - -// End of libusb interface functions - -int usb_mixer_connect() { - int result = 0; - - //const char guid[] = "{E5A2658B-817D-4A02-A1DE-B628A93DDF5D}"; - //TCHAR guid[39]; - //strcpy(guid, "{E5A2658B-817D-4A02-A1DE-B628A93DDF5D}"); - - gDrvApi.LoadByGUID(_T("{E5A2658B-817D-4A02-A1DE-B628A93DDF5D}")); - - - // Allocate internal storage - usb_mixers = (usb_mixer_handle*)malloc(sizeof(usb_mixer_handle)); - memset(usb_mixers, 0, sizeof(usb_mixer_handle)); - - // enumerate devices - TUsbAudioStatus st = gDrvApi.TUSBAUDIO_EnumerateDevices(); - if (TSTATUS_SUCCESS != st) { - return USB_MIXER_FAILURE; - } - - result = find_xmos_device(0); - if (result < 0) { - return USB_MIXER_FAILURE; - } - - return USB_MIXER_SUCCESS; -} - -int usb_mixer_disconnect() { - if (0 != h) { - gDrvApi.TUSBAUDIO_CloseDevice(h); - } - - free(usb_mixers); - - return USB_MIXER_SUCCESS; -} - -/* Getter for num_usb_mixers */ -int usb_mixer_get_num_mixers() -{ - return usb_mixers->num_usb_mixers; -} - -int usb_mixer_get_num_outputs(unsigned int mixer) -{ - return usb_mixers->usb_mixer[mixer].num_outputs; -} - -int usb_mixer_get_num_inputs(unsigned int mixer) -{ - return usb_mixers->usb_mixer[mixer].num_inputs; -} - -int usb_mixer_get_layout(unsigned int mixer, unsigned int* inputs, unsigned int* outputs) { - *inputs = usb_mixers->usb_mixer[mixer].num_inputs; - *outputs = usb_mixers->usb_mixer[mixer].num_outputs; - return 0; -} - -/* MixSel getters and setters */ -char* usb_mixsel_get_input_string(unsigned int mixer, unsigned int input) -{ - return usb_mixers->usb_mixSel[mixer].inputStrings[input]; -} - -int usb_mixsel_get_input_count(unsigned int mixer) -{ - return usb_mixers->usb_mixSel[mixer].numInputs; -} - -int usb_mixsel_get_output_count(unsigned int mixer) -{ - return usb_mixers->usb_mixSel[mixer].numOutputs; -} - -char* usb_mixer_get_input_name(unsigned int mixer, unsigned int input) { - return usb_mixers->usb_mixer[mixer].input_names[input]; -} - -char* usb_mixer_get_output_name(unsigned int mixer, unsigned int output) { - return usb_mixers->usb_mixer[mixer].output_names[output]; -} - -unsigned char usb_mixsel_get_state(unsigned int mixer, unsigned int channel) -{ - return usb_mixers->usb_mixSel[mixer].state[channel]; -} - -void usb_mixsel_set_state(unsigned int mixer, unsigned int dst, unsigned int src) -{ - // write to device - usb_audio_class_set(CUR, CS_XU_SEL, dst, usb_mixers->usb_mixSel[mixer].id, 1, (unsigned char*)&src); - - // update object state - usb_mixers->usb_mixSel[mixer].state[dst] = src; - - // update local object strings - // TODO we don't really need to store strings since we can look them up...*/ - strcpy(usb_mixers->usb_mixer[mixer].input_names[dst], usb_mixers->usb_mixSel[mixer].inputStrings[src]); -} - -double usb_mixer_get_value(unsigned int mixer, unsigned int nodeId) -{ - return (double)usb_mixers->usb_mixer[mixer].nodes[nodeId].weight; -} - -double usb_mixer_get_res(unsigned int mixer, unsigned int nodeId) -{ - return (double)usb_mixers->usb_mixer[mixer].nodes[nodeId].res; -} - -double usb_mixer_get_min(unsigned int mixer, unsigned int nodeId) -{ - return (double)usb_mixers->usb_mixer[mixer].nodes[nodeId].min; -} - -double usb_mixer_get_max(unsigned int mixer, unsigned int nodeId) -{ - return (double)usb_mixers->usb_mixer[mixer].nodes[nodeId].max; -} - -int usb_mixer_set_value(unsigned int mixer, unsigned int nodeId, double val) -{ - /* check if update required */ - if (usb_mixers->usb_mixer[mixer].nodes[nodeId].weight != val) - { - /* update local object */ - usb_mixers->usb_mixer[mixer].nodes[nodeId].weight = val; - - /* write to device */ - short value = (short)(val * 256); - - usb_audio_class_set(CUR, 1, 1 << 8 | nodeId & 0xff, usb_mixers->usb_mixer[mixer].id, 2, (unsigned char*)&value); - - } - return 0; -} - -int usb_mixer_get_range(unsigned int mixer, unsigned int mixer_unit, int* min, int* max, int* res) -{ - // range 0x02 - return 0; -} - -int usb_get_usb_channel_map(int channel) -{ - return usb_mixers->usbChannelMap.map[channel].cur; -} - -int usb_get_aud_channel_map(int channel) -{ - return usb_mixers->audChannelMap.map[channel].cur; -} - -int usb_set_aud_channel_map(int channel, int val) -{ - /* Check if update required */ - if (usb_mixers->audChannelMap.map[channel].cur != val) - { - /* Update local object */ - usb_mixers->audChannelMap.map[channel].cur = val; - - /* Write setting to dev */ - dev_set_channel_map(channel, val, ID_XU_OUT); - } - return 0; -} - -int usb_set_usb_channel_map(int channel, int val) -{ - /* Check if update required */ - if (usb_mixers->usbChannelMap.map[channel].cur != val) - { - /* Update local object */ - usb_mixers->usbChannelMap.map[channel].cur = val; - - /* Write setting to dev */ - dev_set_channel_map(channel, val, ID_XU_IN); - } - return 0; -} - -enum usb_chan_type usb_get_aud_channel_map_type(int channel) -{ - return usb_mixers->audChannelMap.map[channel].ctype; -} - -enum usb_chan_type usb_get_usb_channel_map_type(int channel) -{ - return usb_mixers->usbChannelMap.map[channel].ctype; -} - -char* usb_get_aud_channel_map_name(int channel) -{ - return usb_mixers->audChannelMap.map[channel].name; -} - -char* usb_get_usb_channel_map_name(int channel) -{ - return usb_mixers->usbChannelMap.map[channel].name; -} - -int usb_get_aud_channel_map_num_outputs() -{ - return usb_mixers->audChannelMap.numOutputs; -} -int usb_get_usb_channel_map_num_outputs() -{ - return usb_mixers->usbChannelMap.numOutputs; -} - -int usb_get_aud_channel_map_num_inputs() -{ - return usb_mixers->audChannelMap.numInputs; -} -int usb_get_usb_channel_map_num_inputs() -{ - return usb_mixers->usbChannelMap.numInputs; -}