Software APIs
dt_usbdev.c File Reference

Device Tables (DT) for IP usbdev and top earlgrey. More...

#include "dt/dt_usbdev.h"

Go to the source code of this file.

Data Structures

struct  dt_desc_usbdev
 Description of instances. More...
 

Macros

#define TRY_GET_DT(dt, default)
 Return a pointer to the dt_usbdev_desc_t structure of the requested dt if it's a valid index.
 

Typedefs

typedef struct dt_desc_usbdev dt_desc_usbdev_t
 Description of instances.
 

Functions

dt_usbdev_t dt_usbdev_from_instance_id (dt_instance_id_t inst_id)
 Get the usbdev instance from an instance ID.
 
dt_instance_id_t dt_usbdev_instance_id (dt_usbdev_t dt)
 Get the instance ID of an instance.
 
uint32_t dt_usbdev_reg_block (dt_usbdev_t dt, dt_usbdev_reg_block_t reg_block)
 Get the register base address of an instance.
 
dt_plic_irq_id_t dt_usbdev_irq_to_plic_id (dt_usbdev_t dt, dt_usbdev_irq_t irq)
 Get the PLIC ID of a usbdev IRQ for a given instance.
 
dt_usbdev_irq_t dt_usbdev_irq_from_plic_id (dt_usbdev_t dt, dt_plic_irq_id_t irq)
 Convert a global IRQ ID to a local usbdev IRQ type.
 
dt_alert_id_t dt_usbdev_alert_to_alert_id (dt_usbdev_t dt, dt_usbdev_alert_t alert)
 Get the alert ID of a usbdev alert for a given instance.
 
dt_usbdev_alert_t dt_usbdev_alert_from_alert_id (dt_usbdev_t dt, dt_alert_id_t alert)
 Convert a global alert ID to a local usbdev alert type.
 
dt_periph_io_t dt_usbdev_periph_io (dt_usbdev_t dt, dt_usbdev_periph_io_t sig)
 Get the peripheral I/O description of an instance.
 
dt_clock_t dt_usbdev_clock (dt_usbdev_t dt, dt_usbdev_clock_t clk)
 Get the clock signal connected to a clock port of an instance.
 
dt_reset_t dt_usbdev_reset (dt_usbdev_t dt, dt_usbdev_reset_t rst)
 Get the reset signal connected to a reset port of an instance.
 

Detailed Description

Device Tables (DT) for IP usbdev and top earlgrey.

Definition in file dt_usbdev.c.


Data Structure Documentation

◆ dt_desc_usbdev

struct dt_desc_usbdev

Description of instances.

Definition at line 19 of file dt_usbdev.c.

Data Fields
uint32_t base_addr[kDtUsbdevRegBlockCount] Base address of each register block.
dt_clock_t clock[kDtUsbdevClockCount] Clock signal connected to each clock port.
top_earlgrey_alert_id_t first_alert Alert ID of the first Alert of this instance.

This value is undefined if the block is not connected to the Alert Handler.

top_earlgrey_plic_irq_id_t first_irq PLIC ID of the first IRQ of this instance.

This can be kDtPlicIrqIdNone if the block is not connected to the PLIC.

top_englishbreakfast_plic_irq_id_t first_irq PLIC ID of the first IRQ of this instance.

This can be kDtPlicIrqIdNone if the block is not connected to the PLIC.

dt_instance_id_t inst_id Instance ID.
dt_periph_io_t periph_io[kDtUsbdevPeriphIoCount] Description of each peripheral I/O.
dt_reset_t reset[kDtUsbdevResetCount] Reset signal connected to each reset port.

Macro Definition Documentation

◆ TRY_GET_DT

#define TRY_GET_DT ( dt,
default )
Value:
({ if ((dt) < (dt_usbdev_t)0 || (dt) >= kDtUsbdevCount) return (default); &usbdev_desc[dt]; })

Return a pointer to the dt_usbdev_desc_t structure of the requested dt if it's a valid index.

Otherwise, this macro will return (i.e. exit the function) with the provided default value.

Definition at line 92 of file dt_usbdev.c.

Function Documentation

◆ dt_usbdev_alert_from_alert_id()

dt_usbdev_alert_t dt_usbdev_alert_from_alert_id ( dt_usbdev_t dt,
dt_alert_id_t alert )

Convert a global alert ID to a local usbdev alert type.

Parameters
dtInstance of usbdev.
alertA global alert ID that belongs to this instance.
Returns
The usbdev alert, or kDtUsbdevAlertCount.

Note: This function assumes that the global alert ID belongs to the instance of usbdev passed in parameter. In other words, it must be the case that dt_usbdev_instance_id(dt) == dt_alert_id_to_instance_id(alert). Otherwise, this function will return kDtUsbdevAlertCount.

Definition at line 144 of file dt_usbdev.c.

◆ dt_usbdev_alert_to_alert_id()

dt_alert_id_t dt_usbdev_alert_to_alert_id ( dt_usbdev_t dt,
dt_usbdev_alert_t alert )

Get the alert ID of a usbdev alert for a given instance.

Note: This function only makes sense if the instance is connected to the Alert Handler. For any instances where the instance is not connected, the return value is unspecified.

Parameters
dtInstance of usbdev.
alertA usbdev alert.
Returns
The Alert Handler alert ID of the alert of this instance.

Definition at line 138 of file dt_usbdev.c.

◆ dt_usbdev_clock()

Get the clock signal connected to a clock port of an instance.

Parameters
dtInstance of usbdev.
clkClock port.
Returns
Clock signal.

Definition at line 162 of file dt_usbdev.c.

◆ dt_usbdev_from_instance_id()

dt_usbdev_t dt_usbdev_from_instance_id ( dt_instance_id_t inst_id)

Get the usbdev instance from an instance ID.

For example, dt_uart_from_instance_id(kDtInstanceIdUart3) == kDtUart3.

Parameters
inst_idInstance ID.
Returns
A usbdev instance.

Note: This function only makes sense if the instance ID has device type usbdev, otherwise the returned value is unspecified.

Definition at line 94 of file dt_usbdev.c.

◆ dt_usbdev_instance_id()

dt_instance_id_t dt_usbdev_instance_id ( dt_usbdev_t dt)

Get the instance ID of an instance.

Parameters
dtInstance of usbdev.
Returns
The instance ID of that instance.

Definition at line 101 of file dt_usbdev.c.

◆ dt_usbdev_irq_from_plic_id()

dt_usbdev_irq_t dt_usbdev_irq_from_plic_id ( dt_usbdev_t dt,
dt_plic_irq_id_t irq )

Convert a global IRQ ID to a local usbdev IRQ type.

Parameters
dtInstance of usbdev.
irqA PLIC ID that belongs to this instance.
Returns
The usbdev IRQ, or kDtUsbdevIrqCount.

Note: This function assumes that the PLIC ID belongs to the instance of usbdev passed in parameter. In other words, it must be the case that dt_usbdev_instance_id(dt) == dt_plic_id_to_instance_id(irq). Otherwise, this function will return kDtUsbdevIrqCount.

Definition at line 123 of file dt_usbdev.c.

◆ dt_usbdev_irq_to_plic_id()

dt_plic_irq_id_t dt_usbdev_irq_to_plic_id ( dt_usbdev_t dt,
dt_usbdev_irq_t irq )

Get the PLIC ID of a usbdev IRQ for a given instance.

If the instance is not connected to the PLIC, this function will return kDtPlicIrqIdNone.

Parameters
dtInstance of usbdev.
irqA usbdev IRQ.
Returns
The PLIC ID of the IRQ of this instance.

Definition at line 113 of file dt_usbdev.c.

◆ dt_usbdev_periph_io()

Get the peripheral I/O description of an instance.

Parameters
dtInstance of usbdev.
sigRequested peripheral I/O.
Returns
Description of the requested peripheral I/O for this instance.

Definition at line 155 of file dt_usbdev.c.

◆ dt_usbdev_reg_block()

Get the register base address of an instance.

Parameters
dtInstance of usbdev.
reg_blockThe register block requested.
Returns
The register base address of the requested block.

Definition at line 106 of file dt_usbdev.c.

◆ dt_usbdev_reset()

Get the reset signal connected to a reset port of an instance.

Parameters
dtInstance of usbdev.
rstReset port.
Returns
Reset signal.

Definition at line 169 of file dt_usbdev.c.