Classes
struct	audiod_function_t

Public Member Functions
bool	audiod_control_xfer_cb (uint8_t rhport, uint8_t stage, tusb_control_request_t const *request)

bool	audiod_deinit (void)

void	audiod_init ()

uint16_t	audiod_open (uint8_t rhport, tusb_desc_interface_t const *itf_desc, uint16_t max_len)

void	audiod_reset (uint8_t rhport)

void	audiod_sof_isr (uint8_t rhport, uint32_t frame_count)

bool	audiod_xfer_cb (uint8_t rhport, uint8_t ep_addr, xfer_result_t result, uint32_t xferred_bytes)

void	begin (USBAudioCB *cb, USBAudioConfig config)

USBAudioConfig &	config ()

bool	tud_audio_buffer_and_schedule_control_xfer (uint8_t rhport, tusb_control_request_t const p_request, void data, uint16_t len)

bool	tud_audio_int_n_write (uint8_t func_id, const audio_interrupt_data_t *data)

uint16_t	tud_audio_n_available (uint8_t func_id)

bool	tud_audio_n_clear_ep_in_ff (uint8_t func_id)

bool	tud_audio_n_clear_ep_out_ff (uint8_t func_id)

bool	tud_audio_n_fb_set (uint8_t func_id, uint32_t feedback)

tu_fifo_t *	tud_audio_n_get_ep_in_ff (uint8_t func_id)

tu_fifo_t *	tud_audio_n_get_ep_out_ff (uint8_t func_id)

bool	tud_audio_n_mounted (uint8_t func_id)

uint16_t	tud_audio_n_read (uint8_t func_id, void *buffer, uint16_t bufsize)

uint16_t	tud_audio_n_write (uint8_t func_id, const void *data, uint16_t len)
	Write data to EP in buffer.

Protected Member Functions
bool	audiod_calc_tx_packet_sz (audiod_function_t *audio)

bool	audiod_control_complete (uint8_t rhport, tusb_control_request_t const *p_request)

bool	audiod_control_completeX (uint8_t rhport, tusb_control_request_t const *p_request)

bool	audiod_control_request (uint8_t rhport, tusb_control_request_t const *p_request)

bool	audiod_fb_send (uint8_t rhport, audiod_function_t *audio)

bool	audiod_get_AS_interface_index (uint8_t itf, audiod_function_t audio, uint8_t idxItf, uint8_t const **pp_desc_int)

bool	audiod_get_AS_interface_index_global (uint8_t itf, uint8_t func_id, uint8_t idxItf, uint8_t const **pp_desc_int)

uint8_t	audiod_get_audio_fct_idx (audiod_function_t *audio)

bool	audiod_get_interface (uint8_t rhport, tusb_control_request_t const *p_request)

void	audiod_parse_for_AS_params (audiod_function_t audio, uint8_t const p_desc, uint8_t const *p_desc_end, uint8_t const as_itf)

bool	audiod_rx_done_cb (uint8_t rhport, audiod_function_t *audio, uint16_t n_bytes_received)

bool	audiod_set_interface (uint8_t rhport, tusb_control_request_t const *p_request)

bool	audiod_tx_done_cb (uint8_t rhport, audiod_function_t *audio)

uint16_t	audiod_tx_packet_size (const uint16_t *norminal_size, uint16_t data_count, uint16_t fifo_depth, uint16_t max_depth)

bool	audiod_verify_entity_exists (uint8_t itf, uint8_t entityID, uint8_t *func_id)

bool	audiod_verify_ep_exists (uint8_t ep, uint8_t *func_id)

bool	audiod_verify_itf_exists (uint8_t itf, uint8_t *func_id)

bool	set_fb_params_freq (audiod_function_t *audio, uint32_t sample_freq, uint32_t mclk_freq)

uint8_t	tu_desc_subtype (void const *desc)

uint32_t	tud_audio_feedback_update (uint8_t func_id, uint32_t cycles)

Protected Attributes
std::vector< CFG_TUD_MEM_SECTION audiod_function_t >	_audiod_fct

std::vector< uint8_t >	alt_setting_1

std::vector< uint8_t >	audio_ep_in_sw_buf_1

std::vector< uint8_t >	audio_ep_out_sw_buf_1

USBAudioConfig	cfg

std::vector< CFG_TUD_MEM_SECTION uint8_t >	ctrl_buf_1

std::vector< uint8_t >	descriptor

osal_mutex_def_t	ep_in_ff_mutex_wr_1

osal_mutex_def_t	ep_out_ff_mutex_rd_1

std::vector< CFG_TUD_MEM_SECTION uint8_t >	lin_buf_in_1

std::vector< CFG_TUD_MEM_SECTION uint8_t >	lin_buf_out_1

USBAudioCB *	p_cb = nullptr

Member Function Documentation

◆ tud_audio_n_write()

uint16_t tud_audio_n_write	(	uint8_t	func_id,
		const void *	data,
		uint16_t	len
	)

inline

Write data to EP in buffer.

Write data to buffer. If it is full, new data can be inserted once a transmit was scheduled. See audiod_tx_done_cb(). If TX FIFOs are used, this function is not available in order to not let the user mess up the encoding process.

Parameters

[in]	func_id	Index of audio function interface
[in]	data	Pointer to data array to be copied from
[in]	len	# of array elements to copy

Returns: Number of bytes actually written

The documentation for this class was generated from the following file:

src/AudioTools/Sandbox/USB/USBDeviceAudioAPI.h

Classes

Public Member Functions

Protected Member Functions

Protected Attributes

Member Function Documentation

◆ tud_audio_n_write()