gap9/pmsis/include/pmsis/implem/drivers/udma/i2s/i2s_internal.h File Reference

Data Structures
struct	i2s_itf_slot_s
struct	i2s_itf_data_s

Functions
void	__pi_i2s_conf_init (struct pi_i2s_conf *conf)
	Init i2s configuration structure. More...
int32_t	__pi_i2s_open (struct pi_i2s_conf *conf, struct i2s_itf_data_s **device_data)
	Open i2s device. More...
void	__pi_i2s_close (struct i2s_itf_data_s *itf_data)
	Close i2s device. More...
int32_t	__pi_i2s_ioctl (struct i2s_itf_data_s *itf_data, uint32_t cmd, void *arg)
	Ioctl function. More...
int32_t	__pi_i2s_channel_read_async (struct i2s_itf_data_s *itf_data, uint32_t channel, pi_task_t *task)
	Load data from micro. More...
int32_t	__pi_i2s_read_status (pi_task_t *task, void **mem_block, size_t *size)
	Return status. More...
int32_t	__pi_i2s_channel_write_async (struct i2s_itf_data_s *itf_data, uint32_t channel, void *mem_block, size_t size, pi_task_t *task)
	Send data to speakers. More...
int32_t	__pi_i2s_write_status (pi_task_t *task)
	Return status. More...

Function Documentation

int32_t __pi_i2s_channel_read_async	(	struct i2s_itf_data_s *	itf_data,
		uint32_t	channel,
		pi_task_t *	task
	)

Parameters

itf_data	Pointer to driver data.
channel	ID of the channel to use.
task	Pointer to struct pi_task.

References __pi_irq_handle_end_of_task(), i2s_itf_slot_s::cur_read_buffer, pi_task_t::data, disable_irq(), i2s_itf_slot_s::fifo_head, i2s_itf_slot_s::fifo_tail, i2s_itf_slot_s::nb_ready_buffer, pi_task_t::next, restore_irq(), RX_CHANNEL, i2s_itf_slot_s::rx_conf, and i2s_itf_data_s::slots.

Referenced by pi_i2s_channel_read_async().

int32_t __pi_i2s_channel_write_async	(	struct i2s_itf_data_s *	itf_data,
		uint32_t	channel,
		void *	mem_block,
		size_t	size,
		pi_task_t *	task
	)

Parameters

itf_data	Pointer to driver data.
channel	ID of the channel to use.
mem_block	Pointer to data buffer.
size	Size of data to send.
task	Pointer to struct pi_task.

References __pi_irq_handle_end_of_task(), pi_task_t::data, disable_irq(), i2s_itf_slot_s::fifo_head, i2s_itf_slot_s::fifo_tail, i2s_itf_slot_s::nb_ready_buffer, pi_task_t::next, restore_irq(), i2s_itf_data_s::slots, TX_CHANNEL, and i2s_itf_slot_s::tx_conf.

Referenced by pi_i2s_channel_write_async().

void __pi_i2s_close

(

struct i2s_itf_data_s *

itf_data

)

Parameters

i2s_id

ID of i2s interface.

References i2s_itf_data_s::channels, i2s_itf_data_s::device_id, hal_soc_eu_clear_fc_mask(), hal_udma_ctrl_cg_enable(), hal_udma_ctrl_reset_clear(), i2s_itf_data_s::i2s_id, i2s_itf_data_s::nb_open, pi_fc_event_handler_clear(), pi_fc_l1_free(), pi_l2_free(), i2s_itf_data_s::slots, SOC_EVENT_UDMA_I2S_RX, SOC_EVENT_UDMA_I2S_TX, udma_deinit_device(), and UDMA_I2S_ID.

Referenced by pi_i2s_close().

void __pi_i2s_conf_init

(

struct pi_i2s_conf *

conf

)

Parameters

conf	Pointer to i2s conf.

Referenced by __pi_i2s_open(), and pi_i2s_conf_init().

int32_t __pi_i2s_ioctl	(	struct i2s_itf_data_s *	itf_data,
		uint32_t	cmd,
		void *	arg
	)

Parameters

i2s_id	ID of i2s interface.
cmd	Ioctl command.
arg	Ioctl argument.

Return values

-1	Uknown command.
Value	Ioctl command return value.

References __pi_i2s_clock_disable(), __pi_i2s_clock_enable(), __pi_i2s_conf_get(), __pi_i2s_conf_set(), __pi_i2s_resume(), __pi_i2s_slot_conf_get(), __pi_i2s_slot_conf_set(), __pi_i2s_suspend(), __pi_i2s_timestamp_enable(), i2s_itf_data_s::device_id, disable_irq(), i2s_itf_data_s::i2s_id, I2S_TRACE, and restore_irq().

Referenced by pi_i2s_ioctl().

int32_t __pi_i2s_open	(	struct pi_i2s_conf *	conf,
		struct i2s_itf_data_s **	device_data
	)

Parameters

conf	Pointer to i2s conf.
device_data	Pointer to device data.

Return values

0	Operation is successful.
ERRNO	Error code.

References __pi_i2s_conf_apply(), __pi_i2s_conf_init(), __pi_i2s_handler(), __pi_i2s_slot_conf_set(), i2s_itf_data_s::block_size, i2s_itf_data_s::channels, i2s_itf_data_s::clk, i2s_itf_data_s::clkcfg, i2s_itf_data_s::cur_buffer, i2s_itf_data_s::cur_read_buffer, i2s_itf_data_s::device_id, i2s_itf_slot_s::device_id, i2s_itf_data_s::fifo_head, i2s_itf_slot_s::fifo_head, i2s_itf_data_s::fifo_tail, i2s_itf_slot_s::fifo_tail, i2s_itf_data_s::format, i2s_itf_data_s::frame_clk_freq, i2s_itf_data_s::frequency, i2s_itf_data_s::glb_setup, hal_soc_eu_set_fc_mask(), hal_udma_ctrl_cg_disable(), hal_udma_ctrl_reset_set(), I2S_CLK_EDGE_RISE, I2S_CLK_EXT_SRC_PAD, I2S_GLB_PDM_2CH_DIS, i2s_itf_data_s::i2s_id, I2S_TRACE, I2S_TRACE_ERR, I2S_WS_EDGE_RISE, I2S_WS_EXT_SRC_PAD, I2S_WS_TYPE_PULSE, i2s_itf_data_s::mem_slab, i2s_itf_data_s::nb_open, i2s_itf_data_s::nb_ready_buffer, i2s_itf_data_s::options, i2s_itf_data_s::pdm_decimation, i2s_itf_data_s::pdm_filter_ena, i2s_itf_data_s::pdm_shift, i2s_itf_data_s::pending_size, pi_fc_event_handler_set(), pi_fc_l1_free(), pi_fc_l1_malloc(), pi_l2_malloc(), i2s_itf_data_s::pingpong_buffers, i2s_itf_data_s::reenqueue, RX_CHANNEL, i2s_itf_slot_s::rx_conf, i2s_itf_slot_s::slot_cfg, i2s_itf_slot_s::slot_id, i2s_itf_data_s::slots, SOC_EVENT_UDMA_I2S_RX, SOC_EVENT_UDMA_I2S_TX, TX_CHANNEL, i2s_itf_slot_s::tx_conf, i2s_itf_data_s::udma_cfg, i2s_itf_slot_s::udma_chan_id_rx, i2s_itf_slot_s::udma_chan_id_tx, UDMA_CORE_RX_CFG_DATASIZE, UDMA_CORE_RX_CFG_EN, udma_ctrl, udma_i2s, UDMA_I2S_CLKCFG_SETUP_CLK_EDGE, UDMA_I2S_CLKCFG_SETUP_CLK_EXT_SRC, UDMA_I2S_CLKCFG_SETUP_CLK_SRC, UDMA_I2S_CLKCFG_SETUP_WS_EDGE, UDMA_I2S_CLKCFG_SETUP_WS_EXT_SRC, UDMA_I2S_CLKCFG_SETUP_WS_SRC, UDMA_I2S_CLKCFG_SETUP_WS_TYPE, UDMA_I2S_GLB_SETUP_FRAME_LENGTH, UDMA_I2S_GLB_SETUP_FULL_DUPLEX_EN, UDMA_I2S_GLB_SETUP_PDM_2CH, UDMA_I2S_GLB_SETUP_PDM_EN, UDMA_I2S_GLB_SETUP_SLOT_WIDTH, UDMA_I2S_GLB_SETUP_WS_DELAY, UDMA_I2S_ID, udma_init_device(), and i2s_itf_data_s::word_size.

Referenced by pi_i2s_open().

int32_t __pi_i2s_read_status	(	pi_task_t *	task,
		void **	mem_block,
		size_t *	size
	)

Parameters

task	Pointer to struct pi_task.
mem_block	Pointer to data buffer.
size	Pointer to size.

References pi_task_t::data.

Referenced by pi_i2s_read_status().

int32_t __pi_i2s_write_status

(

pi_task_t *

task

)

Parameters

task	Pointer to struct pi_task.

References pi_task_t::data.

Referenced by pi_i2s_write_status().