dwc_otg_adp.c File Reference

This file contains the most of the Attach Detect Protocol implementation for the driver to support OTG Rev2.0. More...

#include "dwc_os.h"
#include "dwc_otg_regs.h"
#include "dwc_otg_cil.h"
#include "dwc_otg_adp.h"

Go to the source code of this file.

Functions
void	dwc_otg_adp_write_reg (dwc_otg_core_if_t *core_if, uint32_t value)
	Attach Detect Protocol functions.
uint32_t	dwc_otg_adp_read_reg (dwc_otg_core_if_t *core_if)
	Function is called to read ADP registers.
uint32_t	dwc_otg_adp_read_reg_filter (dwc_otg_core_if_t *core_if)
	Function is called to read ADPCTL register and filter Write-clear bits.
void	dwc_otg_adp_modify_reg (dwc_otg_core_if_t *core_if, uint32_t clr, uint32_t set)
	Function is called to write ADP registers.
void	adp_sense_timeout (void *ptr)
void	adp_vbuson_timeout (void *ptr)
	This function is called when the ADP vbus timer expires.
void	dwc_otg_adp_vbuson_timer_start (dwc_otg_core_if_t *core_if)
	Start the ADP Initial Probe timer to detect if Port Connected interrupt is not asserted within 1.1 seconds.
uint32_t	dwc_otg_adp_probe_start (dwc_otg_core_if_t *core_if)
	Starts the ADP Probing.
void	dwc_otg_adp_sense_timer_start (dwc_otg_core_if_t *core_if)
	Starts the ADP Sense timer to detect if ADP Sense interrupt is not asserted within 3 seconds.
uint32_t	dwc_otg_adp_sense_start (dwc_otg_core_if_t *core_if)
	Starts the ADP Sense.
uint32_t	dwc_otg_adp_probe_stop (dwc_otg_core_if_t *core_if)
	Stops the ADP Probing.
uint32_t	dwc_otg_adp_sense_stop (dwc_otg_core_if_t *core_if)
	Stops the ADP Sensing.
void	dwc_otg_adp_turnon_vbus (dwc_otg_core_if_t *core_if)
	Called to turn on the VBUS after initial ADP probe in host mode.
void	dwc_otg_adp_start (dwc_otg_core_if_t *core_if, uint8_t is_host)
	Called right after driver is loaded to perform initial actions for ADP.
void	dwc_otg_adp_init (dwc_otg_core_if_t *core_if)
void	dwc_otg_adp_remove (dwc_otg_core_if_t *core_if)
uint32_t	set_timer_value (dwc_otg_core_if_t *core_if, uint32_t val)
	This function sets Ramp Timer values.
uint32_t	compare_timer_values (dwc_otg_core_if_t *core_if)
	This function compares Ramp Timer values.
int32_t	dwc_otg_adp_handle_prb_intr (dwc_otg_core_if_t *core_if, uint32_t val)
	This function handles ADP Probe Interrupts.
int32_t	dwc_otg_adp_handle_sns_intr (dwc_otg_core_if_t *core_if)
	This function hadles ADP Sense Interrupt.
int32_t	dwc_otg_adp_handle_prb_tmout_intr (dwc_otg_core_if_t *core_if, uint32_t val)
	This function handles ADP Probe Interrupts.
int32_t	dwc_otg_adp_handle_intr (dwc_otg_core_if_t *core_if)
	ADP Interrupt handler.
int32_t	dwc_otg_adp_handle_srp_intr (dwc_otg_core_if_t *core_if)

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Detailed Description

This file contains the most of the Attach Detect Protocol implementation for the driver to support OTG Rev2.0.

Definition in file dwc_otg_adp.c.

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Function Documentation

void adp_vbuson_timeout (  void *  ptr  )  [static]

This function is called when the ADP vbus timer expires. Timeout is 1.1s. Definition at line 119 of file dwc_otg_adp.c.

void dwc_otg_adp_vbuson_timer_start (  dwc_otg_core_if_t *  core_if  )

Start the ADP Initial Probe timer to detect if Port Connected interrupt is not asserted within 1.1 seconds. Parameters: core_if  the pointer to core_if strucure. Definition at line 187 of file dwc_otg_adp.c.

uint32_t dwc_otg_adp_probe_start (  dwc_otg_core_if_t *  core_if  )

Starts the ADP Probing. Parameters: core_if  the pointer to core_if structure. Definition at line 296 of file dwc_otg_adp.c.

void dwc_otg_adp_sense_timer_start (  dwc_otg_core_if_t *  core_if  )

Starts the ADP Sense timer to detect if ADP Sense interrupt is not asserted within 3 seconds. Parameters: core_if  the pointer to core_if strucure. Definition at line 346 of file dwc_otg_adp.c.

uint32_t dwc_otg_adp_sense_start (  dwc_otg_core_if_t *  core_if  )

Starts the ADP Sense. Parameters: core_if  the pointer to core_if strucure. Definition at line 357 of file dwc_otg_adp.c.

uint32_t dwc_otg_adp_probe_stop (  dwc_otg_core_if_t *  core_if  )

Stops the ADP Probing. Parameters: core_if  the pointer to core_if strucure. Definition at line 393 of file dwc_otg_adp.c.

uint32_t dwc_otg_adp_sense_stop (  dwc_otg_core_if_t *  core_if  )

Stops the ADP Sensing. Parameters: core_if  the pointer to core_if strucure. Definition at line 416 of file dwc_otg_adp.c.

void dwc_otg_adp_turnon_vbus (  dwc_otg_core_if_t *  core_if  )

Called to turn on the VBUS after initial ADP probe in host mode. If port power was already enabled in cil_hcd_start function then only schedule a timer. Parameters: core_if  the pointer to core_if structure. Definition at line 437 of file dwc_otg_adp.c.

void dwc_otg_adp_start (  dwc_otg_core_if_t *  core_if, uint8_t  is_host )

Called right after driver is loaded to perform initial actions for ADP. Parameters: core_if  the pointer to core_if structure. is_host  - flag for current mode of operation either from GINTSTS or GPWRDN Definition at line 458 of file dwc_otg_adp.c.

int32_t dwc_otg_adp_handle_srp_intr (  dwc_otg_core_if_t *  core_if  )

Parameters: core_if  Programming view of DWC_otg controller. Definition at line 792 of file dwc_otg_adp.c.

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