gap8/pmsis/drivers/udma/i2c/i2c_internal.c File Reference

Macros
#define	ADDRESS_WRITE
#define	ADDRESS_READ
#define	MAX_SIZE

Functions
static void	__pi_i2c_handler (void *arg)
static uint32_t	__pi_i2c_clk_div_get (uint32_t baudrate)
static void	__pi_i2c_cs_data_add (struct i2c_itf_data_s *driver_data, struct i2c_cs_data_s *cs_data)
static void	__pi_i2c_cs_data_remove (struct i2c_itf_data_s *driver_data, struct i2c_cs_data_s *cs_data)
static void	__pi_i2c_handle_pending_transfer (struct i2c_itf_data_s *driver_data)
static void	__pi_i2c_send_stop_cmd (struct i2c_itf_data_s *driver_data)
static int32_t	__pi_i2c_hw_fifo_both_empty (struct i2c_itf_data_s *driver_data)
static int32_t	__pi_i2c_hw_fifo_empty (struct i2c_itf_data_s *driver_data, udma_channel_e channel)
static void	__pi_i2c_hw_fifo_enqueue (struct i2c_itf_data_s *driver_data, struct pi_task *task, udma_channel_e channel)
static struct pi_task *	__pi_i2c_hw_fifo_pop (struct i2c_itf_data_s *driver_data, udma_channel_e channel)
static void	__pi_i2c_task_fifo_enqueue (struct i2c_itf_data_s *driver_data, struct pi_task *task)
static struct pi_task *	__pi_i2c_task_fifo_pop (struct i2c_itf_data_s *driver_data)
static void	__pi_i2c_copy_exec_read (struct i2c_itf_data_s *driver_data, struct pi_task *task)
static void	__pi_i2c_copy_exec_write (struct i2c_itf_data_s *driver_data, struct pi_task *task)
static void	__pi_i2c_freq_cb (void *args)
static int32_t	__pi_i2c_baudrate_set (struct i2c_cs_data_s *cs_data, uint32_t new_baudrate)
void	__pi_i2c_conf_init (pi_i2c_conf_t *conf)
int32_t	__pi_i2c_open (struct pi_i2c_conf *conf, struct i2c_cs_data_s **device_data)
void	__pi_i2c_close (struct i2c_cs_data_s *device_data)
void	__pi_i2c_ioctl (struct i2c_cs_data_s *device_data, uint32_t cmd, void *arg)
void	__pi_i2c_copy (struct i2c_cs_data_s *cs_data, uint32_t l2_buff, uint32_t length, pi_i2c_xfer_flags_e flags, udma_channel_e channel, struct pi_task *task)
int32_t	__pi_i2c_detect (struct i2c_cs_data_s *cs_data, struct pi_i2c_conf *conf, uint8_t *rx_data, struct pi_task *task)

Variables
static struct i2c_itf_data_s *	g_i2c_itf_data [UDMA_NB_I2C]

Macro Definition Documentation

#define ADDRESS_READ

Referenced by __pi_i2c_copy_exec_read(), and __pi_i2c_detect().

#define ADDRESS_WRITE

Referenced by __pi_i2c_copy_exec_write().

#define MAX_SIZE

Referenced by __pi_i2c_copy_exec_read(), and __pi_i2c_copy_exec_write().

Function Documentation

static int32_t __pi_i2c_baudrate_set ( struct i2c_cs_data_s *  cs_data, uint32_t  new_baudrate  )

static

References __pi_i2c_clk_div_get(), i2c_cs_data_s::clk_div, i2c_cs_data_s::device_id, I2C_TRACE_ERR, and i2c_cs_data_s::max_baudrate.

Referenced by __pi_i2c_ioctl().

static uint32_t __pi_i2c_clk_div_get ( uint32_t  baudrate )

static

References I2C_TRACE_ERR, and pi_freq_get().

Referenced by __pi_i2c_baudrate_set(), __pi_i2c_detect(), __pi_i2c_freq_cb(), and __pi_i2c_open().

void __pi_i2c_close

(

struct i2c_cs_data_s *

device_data

)

References __pi_i2c_cs_data_remove(), i2c_cs_data_s::device_id, i2c_itf_data_s::device_id, hal_soc_eu_clear_fc_mask(), i2c_itf_data_s::i2c_freq_cb, I2C_TRACE, i2c_itf_data_s::nb_open, i2c_itf_data_s::pending, pi_fc_event_handler_clear(), pi_freq_callback_remove(), pi_l2_free(), SOC_EVENT_UDMA_I2C_RX, SOC_EVENT_UDMA_I2C_TX, udma_deinit_device(), and UDMA_I2C_ID.

Referenced by pi_i2c_close().

void __pi_i2c_conf_init

(

pi_i2c_conf_t *

conf

)

Referenced by pi_i2c_conf_init().

void __pi_i2c_copy	(	struct i2c_cs_data_s *	cs_data,
		uint32_t	l2_buff,
		uint32_t	length,
		pi_i2c_xfer_flags_e	flags,
		udma_channel_e	channel,
		struct pi_task *	task
	)

References __pi_i2c_copy_exec_read(), __pi_i2c_copy_exec_write(), __pi_i2c_hw_fifo_both_empty(), __pi_i2c_task_fifo_enqueue(), i2c_cs_data_s::device_id, i2c_itf_data_s::device_id, I2C_TRACE, i2c_cs_data_s::next, and RX_CHANNEL.

Referenced by pi_i2c_read_async(), and pi_i2c_write_async().

static void __pi_i2c_copy_exec_read ( struct i2c_itf_data_s *  driver_data, struct pi_task *  task  )

static

References __pi_i2c_hw_fifo_enqueue(), ADDRESS_READ, i2c_pending_transfer_s::channel, i2c_cs_data_s::clk_div, i2c_cs_data_s::cs, i2c_itf_data_s::device_id, i2c_pending_transfer_s::flags, hal_i2c_enqueue(), I2C_CMD_CFG, I2C_CMD_RD_ACK, I2C_CMD_RD_NACK, I2C_CMD_RPT, i2c_itf_data_s::i2c_cmd_seq, I2C_CMD_START, I2C_CMD_WR, i2c_itf_data_s::i2c_stop_send, MAX_SIZE, i2c_itf_data_s::pending, i2c_pending_transfer_s::pending_buffer, i2c_pending_transfer_s::pending_repeat, i2c_pending_transfer_s::pending_repeat_size, RX_CHANNEL, TX_CHANNEL, UDMA_CORE_RX_CFG_EN, and UDMA_CORE_TX_CFG_EN.

Referenced by __pi_i2c_copy(), and __pi_i2c_handler().

static void __pi_i2c_copy_exec_write ( struct i2c_itf_data_s *  driver_data, struct pi_task *  task  )

static

References __pi_i2c_hw_fifo_enqueue(), ADDRESS_WRITE, i2c_pending_transfer_s::channel, i2c_cs_data_s::clk_div, i2c_cs_data_s::cs, i2c_itf_data_s::device_id, i2c_pending_transfer_s::flags, hal_i2c_enqueue(), I2C_CMD_CFG, I2C_CMD_RPT, i2c_itf_data_s::i2c_cmd_seq, I2C_CMD_START, I2C_CMD_WR, i2c_itf_data_s::i2c_stop_send, MAX_SIZE, i2c_itf_data_s::pending, i2c_pending_transfer_s::pending_buffer, i2c_pending_transfer_s::pending_repeat, i2c_pending_transfer_s::pending_repeat_size, TX_CHANNEL, and UDMA_CORE_TX_CFG_EN.

Referenced by __pi_i2c_copy(), and __pi_i2c_handler().

static void __pi_i2c_cs_data_add ( struct i2c_itf_data_s *  driver_data, struct i2c_cs_data_s *  cs_data  )

static

References i2c_itf_data_s::cs_list, and i2c_cs_data_s::next.

Referenced by __pi_i2c_open().

static void __pi_i2c_cs_data_remove ( struct i2c_itf_data_s *  driver_data, struct i2c_cs_data_s *  cs_data  )

static

References i2c_itf_data_s::cs_list, hal_compiler_barrier(), and i2c_cs_data_s::next.

Referenced by __pi_i2c_close().

int32_t __pi_i2c_detect	(	struct i2c_cs_data_s *	cs_data,
		struct pi_i2c_conf *	conf,
		uint8_t *	rx_data,
		struct pi_task *	task
	)

References __pi_i2c_clk_div_get(), __pi_i2c_hw_fifo_enqueue(), ADDRESS_READ, i2c_cs_data_s::device_id, i2c_itf_data_s::device_id, hal_i2c_enqueue(), I2C_CMD_CFG, I2C_CMD_RD_NACK, i2c_itf_data_s::i2c_cmd_seq, I2C_CMD_START, I2C_CMD_WR, i2c_itf_data_s::i2c_stop_send, I2C_TRACE_ERR, i2c_itf_data_s::pending, i2c_pending_transfer_s::pending_repeat, RX_CHANNEL, TX_CHANNEL, UDMA_CORE_RX_CFG_EN, and UDMA_CORE_TX_CFG_EN.

Referenced by pi_i2c_detect().

static void __pi_i2c_freq_cb ( void *  args )

static

References __pi_i2c_clk_div_get(), i2c_cs_data_s::clk_div, i2c_itf_data_s::cs_list, i2c_itf_data_s::device_id, hal_i2c_busy_get(), i2c_cs_data_s::max_baudrate, and i2c_cs_data_s::next.

Referenced by __pi_i2c_open().

static void __pi_i2c_handle_pending_transfer ( struct i2c_itf_data_s *  driver_data )

static

References i2c_pending_transfer_s::flags, I2C_CMD_RPT, i2c_itf_data_s::i2c_cmd_seq, I2C_CMD_WR, i2c_itf_data_s::i2c_stop_send, i2c_itf_data_s::pending, i2c_pending_transfer_s::pending_buffer, i2c_pending_transfer_s::pending_repeat, i2c_pending_transfer_s::pending_repeat_size, and i2c_pending_transfer_s::pending_size.

Referenced by __pi_i2c_handler().

static void __pi_i2c_handler ( void *  arg )

static

References __pi_i2c_copy_exec_read(), __pi_i2c_copy_exec_write(), __pi_i2c_handle_pending_transfer(), __pi_i2c_hw_fifo_pop(), __pi_i2c_send_stop_cmd(), __pi_i2c_task_fifo_pop(), __pi_irq_handle_end_of_task(), i2c_pending_transfer_s::channel, i2c_itf_data_s::hw_buffer, i2c_itf_data_s::i2c_stop_send, i2c_itf_data_s::nb_events, i2c_itf_data_s::pending, i2c_pending_transfer_s::pending_repeat, RX_CHANNEL, TX_CHANNEL, UDMA_CHANNEL_NB_EVENTS_LOG2, and UDMA_I2C_ID.

Referenced by __pi_i2c_open().

static int32_t __pi_i2c_hw_fifo_both_empty ( struct i2c_itf_data_s *  driver_data )

static

References __pi_i2c_hw_fifo_empty(), RX_CHANNEL, and TX_CHANNEL.

Referenced by __pi_i2c_copy().

static int32_t __pi_i2c_hw_fifo_empty ( struct i2c_itf_data_s *  driver_data, udma_channel_e  channel  )

static

References i2c_itf_data_s::hw_buffer.

Referenced by __pi_i2c_hw_fifo_both_empty().

static void __pi_i2c_hw_fifo_enqueue ( struct i2c_itf_data_s *  driver_data, struct pi_task *  task, udma_channel_e  channel  )

static

References i2c_itf_data_s::hw_buffer.

Referenced by __pi_i2c_copy_exec_read(), __pi_i2c_copy_exec_write(), and __pi_i2c_detect().

static struct pi_task * __pi_i2c_hw_fifo_pop ( struct i2c_itf_data_s *  driver_data, udma_channel_e  channel  )

static

References i2c_itf_data_s::hw_buffer.

Referenced by __pi_i2c_handler().

void __pi_i2c_ioctl	(	struct i2c_cs_data_s *	device_data,
		uint32_t	cmd,
		void *	arg
	)

References __pi_i2c_baudrate_set().

Referenced by pi_i2c_ioctl().

int32_t __pi_i2c_open	(	struct pi_i2c_conf *	conf,
		struct i2c_cs_data_s **	device_data
	)

References __pi_i2c_clk_div_get(), __PI_I2C_CMD_BUFF_SIZE, __pi_i2c_cs_data_add(), __pi_i2c_freq_cb(), __pi_i2c_handler(), i2c_cs_data_s::clk_div, i2c_cs_data_s::cs, i2c_itf_data_s::cs_list, i2c_cs_data_s::device_id, i2c_itf_data_s::device_id, i2c_itf_data_s::fifo_head, i2c_itf_data_s::fifo_tail, hal_soc_eu_set_fc_mask(), i2c_itf_data_s::hw_buffer, i2c_itf_data_s::i2c_cmd_index, i2c_itf_data_s::i2c_cmd_seq, I2C_CMD_STOP, I2C_CMD_WAIT, i2c_itf_data_s::i2c_freq_cb, i2c_itf_data_s::i2c_stop_send, i2c_itf_data_s::i2c_stop_seq, I2C_TRACE, I2C_TRACE_ERR, i2c_cs_data_s::max_baudrate, i2c_itf_data_s::nb_events, i2c_itf_data_s::nb_open, i2c_cs_data_s::next, i2c_itf_data_s::pending, pi_fc_event_handler_set(), pi_freq_callback_add(), pi_freq_callback_init(), pi_l2_free(), pi_l2_malloc(), SOC_EVENT_UDMA_I2C_RX, SOC_EVENT_UDMA_I2C_TX, UDMA_I2C_ID, and udma_init_device().

Referenced by pi_i2c_open().

static void __pi_i2c_send_stop_cmd ( struct i2c_itf_data_s *  driver_data )

static

References __PI_I2C_STOP_CMD_SIZE, i2c_itf_data_s::device_id, hal_i2c_enqueue(), i2c_itf_data_s::i2c_stop_send, i2c_itf_data_s::i2c_stop_seq, TX_CHANNEL, and UDMA_CORE_TX_CFG_EN.

Referenced by __pi_i2c_handler().

static void __pi_i2c_task_fifo_enqueue ( struct i2c_itf_data_s *  driver_data, struct pi_task *  task  )

static

References i2c_itf_data_s::fifo_head, and i2c_itf_data_s::fifo_tail.

Referenced by __pi_i2c_copy().

static struct pi_task * __pi_i2c_task_fifo_pop ( struct i2c_itf_data_s *  driver_data )

static

References i2c_itf_data_s::fifo_head.

Referenced by __pi_i2c_handler().

Variable Documentation

struct i2c_itf_data_s* g_i2c_itf_data[UDMA_NB_I2C]

static