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rt-thread-official/bsp/nuvoton/libraries/nuc980/rtt_port/drv_usbd.c

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/**************************************************************************//**
*
* @copyright (C) 2020 Nuvoton Technology Corp. All rights reserved.
*
* SPDX-License-Identifier: Apache-2.0
*
* Change Logs:
* Date Author Notes
* 2020-12-25 Wayne First version
*
******************************************************************************/
#include <rtconfig.h>
#if defined(BSP_USING_USBD)
#include <rtthread.h>
#include <rtdevice.h>
#include <string.h>
#include "NuMicro.h"
#include <nu_bitutil.h>
#include "drv_sys.h"
#define LOG_TAG "drv.usbd"
//#define DBG_ENABLE
#define DBG_SECTION_NAME "drv.usbd"
//#define DBG_LEVEL DBG_ERROR
#define DBG_COLOR
#include <rtdbg.h>
/* Private define ---------------------------------------------------------------*/
#define ENABLE_FULL_SPEED_MODE_ONLY 0 /* 0: default hi-speed mode; 1: full-speed mode only */
/* Define EP maximum packet size */
#define CEP_MAX_PKT_SIZE 64
#define CEP_OTHER_MAX_PKT_SIZE 64
#define EPA_MAX_PKT_SIZE 512
#define EPA_OTHER_MAX_PKT_SIZE 64
#define EPB_MAX_PKT_SIZE 512
#define EPB_OTHER_MAX_PKT_SIZE 64
#define EPC_MAX_PKT_SIZE 64
#define EPC_OTHER_MAX_PKT_SIZE 64
#define EPD_MAX_PKT_SIZE 64
#define EPD_OTHER_MAX_PKT_SIZE 64
#define EPE_MAX_PKT_SIZE 512
#define EPE_OTHER_MAX_PKT_SIZE 64
#define EPF_MAX_PKT_SIZE 512
#define EPF_OTHER_MAX_PKT_SIZE 64
#define EPG_MAX_PKT_SIZE 64
#define EPG_OTHER_MAX_PKT_SIZE 64
#define EPH_MAX_PKT_SIZE 64
#define EPH_OTHER_MAX_PKT_SIZE 64
#define EPI_MAX_PKT_SIZE 512
#define EPI_OTHER_MAX_PKT_SIZE 64
#define EPJ_MAX_PKT_SIZE 512
#define EPJ_OTHER_MAX_PKT_SIZE 64
#define EPK_MAX_PKT_SIZE 64
#define EPK_OTHER_MAX_PKT_SIZE 64
#define EPL_MAX_PKT_SIZE 64
#define EPL_OTHER_MAX_PKT_SIZE 64
#define CEP_BUF_BASE 0
#define CEP_BUF_LEN CEP_MAX_PKT_SIZE
#define EPA_BUF_BASE (CEP_BUF_BASE + CEP_BUF_LEN)
#define EPA_BUF_LEN EPA_MAX_PKT_SIZE
#define EPB_BUF_BASE (EPA_BUF_BASE + EPA_BUF_LEN)
#define EPB_BUF_LEN EPB_MAX_PKT_SIZE
#define EPC_BUF_BASE (EPB_BUF_BASE + EPB_BUF_LEN)
#define EPC_BUF_LEN EPC_MAX_PKT_SIZE
#define EPD_BUF_BASE (EPC_BUF_BASE + EPC_BUF_LEN)
#define EPD_BUF_LEN EPD_MAX_PKT_SIZE
#define EPE_BUF_BASE (EPD_BUF_BASE + EPD_BUF_LEN)
#define EPE_BUF_LEN EPE_MAX_PKT_SIZE
#define EPF_BUF_BASE (EPE_BUF_BASE + EPE_BUF_LEN)
#define EPF_BUF_LEN EPF_MAX_PKT_SIZE
#define EPG_BUF_BASE (EPF_BUF_BASE + EPF_BUF_LEN)
#define EPG_BUF_LEN EPG_MAX_PKT_SIZE
#define EPH_BUF_BASE (EPG_BUF_BASE + EPG_BUF_LEN)
#define EPH_BUF_LEN EPH_MAX_PKT_SIZE
#define EPI_BUF_BASE (EPH_BUF_BASE + EPH_BUF_LEN)
#define EPI_BUF_LEN EPI_MAX_PKT_SIZE
#define EPJ_BUF_BASE (EPI_BUF_BASE + EPI_BUF_LEN)
#define EPJ_BUF_LEN EPJ_MAX_PKT_SIZE
#define EPK_BUF_BASE (EPJ_BUF_BASE + EPJ_BUF_LEN)
#define EPK_BUF_LEN EPK_MAX_PKT_SIZE
#define EPL_BUF_BASE (EPK_BUF_BASE + EPK_BUF_LEN)
#define EPL_BUF_LEN EPL_MAX_PKT_SIZE
#define EPADR_SW2HW(address) ((address & USB_EPNO_MASK) - 1) /* for non-control endpoint */
#define EPADR_HW2SW(address) ((address & USB_EPNO_MASK) + 1) /* for non-control endpoint */
/* Private typedef --------------------------------------------------------------*/
typedef struct _nu_usbd_t
{
USBD_T *base; /* REG base */
char *name;
IRQn_Type irqn;
E_SYS_IPRST rstidx;
E_SYS_IPCLK clkidx;
uint8_t address_tmp; /* Keep assigned address for flow control */
uint8_t plugging_status; /* For debounce, 0: Unplug, 1: plug-in */
} nu_usbd_t;
typedef struct
{
uint32_t u32BufferBase;
uint32_t u32BufferLength;
uint32_t u32OtherMaxPktSize;
} S_EP_CXT;
/* Private variables ------------------------------------------------------------*/
static nu_usbd_t nu_usbd =
{
.base = USBD,
.name = "usbd",
.irqn = IRQ_UDC,
.rstidx = USBDRST,
.clkidx = USBDCKEN,
.address_tmp = 0,
.plugging_status = 0,
};
static struct udcd _rt_obj_udc;
static S_EP_CXT _ep_cxt_pool[] =
{
{ EPA_BUF_BASE, EPA_BUF_LEN, EPA_OTHER_MAX_PKT_SIZE}, //EPA
{ EPB_BUF_BASE, EPB_BUF_LEN, EPB_OTHER_MAX_PKT_SIZE}, //EPB
{ EPC_BUF_BASE, EPC_BUF_LEN, EPC_OTHER_MAX_PKT_SIZE}, //EPC
{ EPD_BUF_BASE, EPD_BUF_LEN, EPD_OTHER_MAX_PKT_SIZE}, //EPD
{ EPE_BUF_BASE, EPE_BUF_LEN, EPE_OTHER_MAX_PKT_SIZE}, //EPE
{ EPF_BUF_BASE, EPF_BUF_LEN, EPF_OTHER_MAX_PKT_SIZE}, //EPF
{ EPG_BUF_BASE, EPG_BUF_LEN, EPG_OTHER_MAX_PKT_SIZE}, //EPG
{ EPH_BUF_BASE, EPH_BUF_LEN, EPH_OTHER_MAX_PKT_SIZE}, //EPH
{ EPI_BUF_BASE, EPI_BUF_LEN, EPI_OTHER_MAX_PKT_SIZE}, //EPI
{ EPJ_BUF_BASE, EPJ_BUF_LEN, EPJ_OTHER_MAX_PKT_SIZE}, //EPJ
{ EPK_BUF_BASE, EPK_BUF_LEN, EPK_OTHER_MAX_PKT_SIZE}, //EPK
{ EPL_BUF_BASE, EPL_BUF_LEN, EPL_OTHER_MAX_PKT_SIZE} //EPL
};
static struct ep_id _ep_pool[] =
{
{0x0, USB_EP_ATTR_CONTROL, USB_DIR_INOUT, CEP_MAX_PKT_SIZE, ID_ASSIGNED },
{EPADR_HW2SW(EPA), USB_EP_ATTR_BULK, USB_DIR_IN, EPA_MAX_PKT_SIZE, ID_UNASSIGNED},
{EPADR_HW2SW(EPB), USB_EP_ATTR_BULK, USB_DIR_OUT, EPB_MAX_PKT_SIZE, ID_UNASSIGNED},
{EPADR_HW2SW(EPC), USB_EP_ATTR_INT, USB_DIR_IN, EPC_MAX_PKT_SIZE, ID_UNASSIGNED},
{EPADR_HW2SW(EPD), USB_EP_ATTR_INT, USB_DIR_OUT, EPD_MAX_PKT_SIZE, ID_UNASSIGNED},
{EPADR_HW2SW(EPE), USB_EP_ATTR_BULK, USB_DIR_IN, EPE_MAX_PKT_SIZE, ID_UNASSIGNED},
{EPADR_HW2SW(EPF), USB_EP_ATTR_BULK, USB_DIR_OUT, EPF_MAX_PKT_SIZE, ID_UNASSIGNED},
{EPADR_HW2SW(EPG), USB_EP_ATTR_INT, USB_DIR_IN, EPG_MAX_PKT_SIZE, ID_UNASSIGNED},
{EPADR_HW2SW(EPH), USB_EP_ATTR_INT, USB_DIR_OUT, EPH_MAX_PKT_SIZE, ID_UNASSIGNED},
{EPADR_HW2SW(EPI), USB_EP_ATTR_BULK, USB_DIR_IN, EPE_MAX_PKT_SIZE, ID_UNASSIGNED},
{EPADR_HW2SW(EPJ), USB_EP_ATTR_BULK, USB_DIR_OUT, EPF_MAX_PKT_SIZE, ID_UNASSIGNED},
{EPADR_HW2SW(EPK), USB_EP_ATTR_INT, USB_DIR_IN, EPG_MAX_PKT_SIZE, ID_UNASSIGNED},
{EPADR_HW2SW(EPL), USB_EP_ATTR_INT, USB_DIR_OUT, EPH_MAX_PKT_SIZE, ID_UNASSIGNED},
{0xFF, USB_EP_ATTR_TYPE_MASK, USB_DIR_MASK, 0, ID_ASSIGNED },
};
static void _nu_ep_partition_set(int isHighSpeed)
{
int i;
for (i = 0; i < USBD_MAX_EP; i++)
{
uint32_t u32NuEPTypeDef = 0x0;
uint32_t u32NuEPDirDef = 0x0;
if (_ep_pool[i + 1].type == USB_EP_ATTR_BULK)
u32NuEPTypeDef = USB_EP_CFG_TYPE_BULK;
else if (_ep_pool[i + 1].type == USB_EP_ATTR_INT)
u32NuEPTypeDef = USB_EP_CFG_TYPE_INT;
else
continue;
if (_ep_pool[i + 1].dir == USB_DIR_IN)
u32NuEPDirDef = USB_EP_CFG_DIR_IN;
else if (_ep_pool[i + 1].dir == USB_DIR_OUT)
u32NuEPDirDef = USB_EP_CFG_DIR_OUT;
else
continue;
USBD_SetEpBufAddr(i, _ep_cxt_pool[i].u32BufferBase, _ep_cxt_pool[i].u32BufferLength);
if (isHighSpeed)
USBD_SET_MAX_PAYLOAD(i, _ep_cxt_pool[i].u32BufferLength);
else
USBD_SET_MAX_PAYLOAD(i, _ep_cxt_pool[i].u32OtherMaxPktSize);
USBD_ConfigEp(i, EPADR_HW2SW(i), u32NuEPTypeDef, u32NuEPDirDef);
if (u32NuEPDirDef == USB_EP_CFG_DIR_OUT)
USBD_ENABLE_EP_INT(i, USBD_EPINTEN_RXPKIEN_Msk);
} //for
}
static void _nu_ep_partition(void)
{
/* Configure USB controller */
/* Enable USB BUS, CEP and EPA ~ EPH global interrupt */
USBD_ENABLE_USB_INT(USBD_GINTEN_USBIE_Msk
| USBD_GINTEN_CEPIE_Msk
| USBD_GINTEN_EPAIE_Msk
| USBD_GINTEN_EPBIE_Msk
| USBD_GINTEN_EPCIE_Msk
| USBD_GINTEN_EPDIE_Msk
| USBD_GINTEN_EPEIE_Msk
| USBD_GINTEN_EPFIE_Msk
| USBD_GINTEN_EPGIE_Msk
| USBD_GINTEN_EPHIE_Msk
| USBD_GINTEN_EPIIE_Msk
| USBD_GINTEN_EPJIE_Msk
| USBD_GINTEN_EPKIE_Msk
| USBD_GINTEN_EPLIE_Msk);
/* Enable BUS interrupt */
USBD_ENABLE_BUS_INT(USBD_BUSINTEN_DMADONEIEN_Msk
| USBD_BUSINTEN_RESUMEIEN_Msk
| USBD_BUSINTEN_RSTIEN_Msk
| USBD_BUSINTEN_VBUSDETIEN_Msk);
/* Reset Address to 0 */
USBD_SET_ADDR(0);
/*****************************************************/
/* Control endpoint */
USBD_SetEpBufAddr(CEP, CEP_BUF_BASE, CEP_BUF_LEN);
USBD_ENABLE_CEP_INT(USBD_CEPINTEN_SETUPPKIEN_Msk
| USBD_CEPINTEN_STSDONEIEN_Msk);
_nu_ep_partition_set(1);
}
static void NU_SetupStageCallback(nu_usbd_t *nu_udc)
{
struct urequest setup_packet;
/* Setup packet process */
setup_packet.request_type = (uint8_t)(nu_udc->base->SETUP1_0 & 0xfful);
setup_packet.bRequest = (uint8_t)((nu_udc->base->SETUP1_0 >> 8) & 0xfful);
setup_packet.wValue = (uint16_t) nu_udc->base->SETUP3_2;
setup_packet.wIndex = (uint16_t) nu_udc->base->SETUP5_4;
setup_packet.wLength = (uint16_t) nu_udc->base->SETUP7_6;
rt_usbd_ep0_setup_handler(&_rt_obj_udc, (struct urequest *)&setup_packet);
}
__STATIC_INLINE void nu_udc_enable(void)
{
USBD_ENABLE_USB();
}
__STATIC_INLINE void nu_udc_disable(void)
{
int i;
USBD_ENABLE_CEP_INT(0);
USBD_CLR_CEP_INT_FLAG(0xffff);
USBD_SET_CEP_STATE(inpw(REG_USBD_CEPCTL) | USB_CEPCTL_FLUSH);
for (i = 0; i < USBD_MAX_EP; i++)
USBD->EP[i].EPRSPCTL = USB_EP_RSPCTL_FLUSH | USB_EP_RSPCTL_TOGGLE;
USBD_DISABLE_USB();
}
static rt_err_t _ep_set_stall(rt_uint8_t address)
{
if (address & USB_EPNO_MASK)
{
USBD_SetEpStall(EPADR_SW2HW(address));
}
else
{
/* Not support. Reply STALL. */
USBD_SET_CEP_STATE(USBD_CEPCTL_STALLEN_Msk);
USBD_CLR_CEP_INT_FLAG(USBD_CEPINTSTS_SETUPPKIF_Msk);
USBD_ENABLE_CEP_INT(USBD_CEPINTEN_SETUPPKIEN_Msk);
}
return RT_EOK;
}
static rt_err_t _ep_clear_stall(rt_uint8_t address)
{
if (address & USB_EPNO_MASK)
{
USBD_ClearEpStall(EPADR_SW2HW(address));
}
return RT_EOK;
}
static rt_err_t _set_address(rt_uint8_t address)
{
if (0 != address)
{
nu_usbd.address_tmp = address;
}
return RT_EOK;
}
static rt_err_t _set_config(rt_uint8_t address)
{
return RT_EOK;
}
static rt_err_t _ep_enable(uep_t ep)
{
RT_ASSERT(ep != RT_NULL);
RT_ASSERT(ep->ep_desc != RT_NULL);
USBD->EP[EPADR_SW2HW(ep->ep_desc->bEndpointAddress)].EPRSPCTL = USB_EP_RSPCTL_TOGGLE;
USBD->EP[EPADR_SW2HW(ep->ep_desc->bEndpointAddress)].EPCFG |= USB_EP_CFG_VALID;
return RT_EOK;
}
static rt_err_t _ep_disable(uep_t ep)
{
RT_ASSERT(ep != RT_NULL);
RT_ASSERT(ep->ep_desc != RT_NULL);
USBD->EP[EPADR_SW2HW(ep->ep_desc->bEndpointAddress)].EPCFG &= ~USB_EP_CFG_VALID;
return RT_EOK;
}
static rt_err_t _ep0_send_status(void)
{
/* Status Stage */
USBD_CLR_CEP_INT_FLAG(USBD_CEPINTSTS_STSDONEIF_Msk
| USBD_CEPINTSTS_SETUPPKIF_Msk);
USBD_ENABLE_CEP_INT(USBD_CEPINTEN_STSDONEIEN_Msk);
USBD_SET_CEP_STATE(USB_CEPCTL_NAKCLR);
return RT_EOK;
}
__STATIC_INLINE void nu_buffer_cpy(rt_uint8_t address, void *buffer, rt_size_t size)
{
rt_uint32_t i, cnt;
rt_uint32_t *_buf_word;
rt_uint8_t *_buf_byte;
_buf_word = (rt_uint32_t *)buffer;
cnt = size >> 2;
_buf_byte = (rt_uint8_t *)((rt_uint8_t *)buffer + (cnt * 4));
if ((address & USB_EPNO_MASK)) //EPs
{
if (address & USB_DIR_IN) //IN
{
/* Non-control endpoint IN*/
for (i = 0; i < cnt; i++)
{
USBD->EP[EPADR_SW2HW(address)].ep.EPDAT = _buf_word[i];
}
for (i = 0ul; i < (size % 4ul); i++)
USBD->EP[EPADR_SW2HW(address)].ep.EPDAT_BYTE = _buf_byte[i];
}
else //OUT
{
for (i = 0; i < cnt; i++)
{
_buf_word[i] = USBD->EP[EPADR_SW2HW(address)].ep.EPDAT;
}
for (i = 0ul; i < (size % 4ul); i++)
_buf_byte[i] = USBD->EP[EPADR_SW2HW(address)].ep.EPDAT_BYTE;
}
}
else //Control
{
if (address & USB_DIR_IN) //IN
{
for (i = 0; i < cnt; i++)
{
USBD->cep.CEPDAT = _buf_word[i];
}
for (i = 0ul; i < (size % 4ul); i++)
USBD->cep.CEPDAT_BYTE = _buf_byte[i];
}
else //OUT
{
for (i = 0; i < cnt; i++)
{
_buf_word[i] = USBD->cep.CEPDAT;
}
for (i = 0ul; i < (size % 4ul); i++)
_buf_byte[i] = USBD->cep.CEPDAT_BYTE;
}
}
}
static rt_size_t _ep_read(rt_uint8_t address, void *buffer)
{
rt_size_t size = 0;
RT_ASSERT(!(address & USB_DIR_IN));
if ((address & USB_EPNO_MASK))
{
RT_ASSERT(buffer != RT_NULL);
size = USBD->EP[EPADR_SW2HW(address)].EPDATCNT & 0xffff;
nu_buffer_cpy(address, buffer, size);
}
else //control transfer
{
size = USBD->CEPRXCNT & 0xffff;
if (size)
{
RT_ASSERT(_rt_obj_udc.stage == STAGE_DOUT);
nu_buffer_cpy(address, buffer, size);
}
_ep0_send_status();
}
return size;
}
static rt_size_t _ep_read_prepare(rt_uint8_t address, void *buffer, rt_size_t size)
{
RT_ASSERT(!(address & USB_DIR_IN));
if ((address & USB_EPNO_MASK))
{
USBD_ENABLE_EP_INT(EPADR_SW2HW(address),
USBD_EPINTEN_RXPKIEN_Msk);
}
else //control transfer
{
if (size)
{
RT_ASSERT(_rt_obj_udc.stage == STAGE_DOUT);
USBD_ENABLE_CEP_INT(USBD_CEPINTEN_OUTTKIEN_Msk);
}
else
{
RT_ASSERT(_rt_obj_udc.stage == STAGE_STATUS_OUT);
USBD_CLR_CEP_INT_FLAG(USBD_CEPINTSTS_SETUPPKIF_Msk
| USBD_CEPINTSTS_STSDONEIF_Msk);
USBD_ENABLE_CEP_INT(USBD_CEPINTEN_SETUPPKIEN_Msk
| USBD_CEPINTEN_STSDONEIEN_Msk);
USBD_SET_CEP_STATE(USB_CEPCTL_NAKCLR);
}
}
return size;
}
static rt_size_t _ep_write(rt_uint8_t address, void *buffer, rt_size_t size)
{
RT_ASSERT((address & USB_DIR_IN));
if (!(address & USB_EPNO_MASK)) //control transfer
{
if (size)
{
nu_buffer_cpy(address, buffer, size);
USBD_START_CEP_IN(size);
}
else//zero length
{
USBD_SET_CEP_STATE(USB_CEPCTL_ZEROLEN);
USBD_CLR_CEP_INT_FLAG(USBD_CEPINTSTS_STSDONEIF_Msk
| USBD_CEPINTSTS_SETUPPKIF_Msk);
USBD_ENABLE_CEP_INT(USBD_CEPINTEN_SETUPPKIEN_Msk
| USBD_CEPINTEN_STSDONEIEN_Msk);
}
if (_rt_obj_udc.stage == STAGE_DIN)
{
USBD_CLR_CEP_INT_FLAG(USBD_CEPINTSTS_TXPKIF_Msk);
USBD_ENABLE_CEP_INT(USBD_CEPINTEN_TXPKIEN_Msk);
}
else if (_rt_obj_udc.stage == STAGE_DOUT)
{
USBD_CLR_CEP_INT_FLAG(USBD_CEPINTSTS_RXPKIF_Msk);
USBD_ENABLE_CEP_INT(USBD_CEPINTEN_RXPKIEN_Msk);
}
}
else
{
/* Non-control endpoint IN*/
nu_buffer_cpy(address, buffer, size);
USBD->EP[EPADR_SW2HW(address)].EPRSPCTL = USB_EP_RSPCTL_SHORTTXEN; // packet end
USBD->EP[EPADR_SW2HW(address)].EPTXCNT = size;
if ((USBD->EP[EPADR_SW2HW(address)].EPCFG & USBD_EPCFG_EPTYPE_Msk) == USB_EP_CFG_TYPE_INT)
{
USBD_ENABLE_EP_INT(EPADR_SW2HW(address), USBD_EPINTEN_INTKIEN_Msk); //for interrupt transfer timing
}
else
{
USBD_ENABLE_EP_INT(EPADR_SW2HW(address), USBD_EPINTEN_TXPKIEN_Msk); //for bulk transfer timing
}
}
return size;
}
static rt_err_t _suspend(void)
{
return RT_EOK;
}
static rt_err_t _wakeup(void)
{
return RT_EOK;
}
static void nu_usbd_isr(int vector, void *param)
{
__IO rt_uint32_t IrqStL, IrqSt;
int i;
int IrqStAllEP;
/* Igrone event if role is USBH*/
if (nu_sys_usb0_role() != USB0_ID_DEVICE) return;
IrqStL = USBD->GINTSTS & USBD->GINTEN; /* get interrupt status */
if (!IrqStL) return;
/* USB interrupt */
if (IrqStL & USBD_GINTSTS_USBIF_Msk)
{
IrqSt = USBD->BUSINTSTS & USBD->BUSINTEN;
if (IrqSt & USBD_BUSINTSTS_SOFIF_Msk)
{
USBD_CLR_BUS_INT_FLAG(USBD_BUSINTSTS_SOFIF_Msk);
rt_usbd_sof_handler(&_rt_obj_udc);
}
if (IrqSt & USBD_BUSINTSTS_RSTIF_Msk)
{
/* Reset USB device address */
USBD_SET_ADDR(0ul);
USBD_ResetDMA();
for (i = 0; i < USBD_MAX_EP; i++)
USBD->EP[i].EPRSPCTL = USBD_EPRSPCTL_FLUSH_Msk;
if (USBD->OPER & 0x04) /* high speed */
{
LOG_I("-High Speed-");
_nu_ep_partition_set(1);
}
else /* full speed */
{
LOG_I("-Full Speed-");
_nu_ep_partition_set(0);
}
USBD_ENABLE_CEP_INT(USBD_CEPINTEN_SETUPPKIEN_Msk);
USBD_ENABLE_BUS_INT(USBD_BUSINTEN_RSTIEN_Msk
| USBD_BUSINTEN_RESUMEIEN_Msk
| USBD_BUSINTEN_SUSPENDIEN_Msk
| USBD_BUSINTEN_VBUSDETIEN_Msk);
USBD_CLR_BUS_INT_FLAG(USBD_BUSINTSTS_RSTIF_Msk);
USBD_CLR_CEP_INT_FLAG(0x1ffc);
for (i = 0ul; i < USBD_MAX_EP; i++)
{
if ((USBD->EP[i].EPCFG & 0x1ul) == 0x1ul)
{
USBD->EP[i].EPRSPCTL = USB_EP_RSPCTL_TOGGLE;
}
}
rt_usbd_reset_handler(&_rt_obj_udc);
USBD_ENABLE_USB();
}
if (IrqSt & USBD_BUSINTSTS_RESUMEIF_Msk)
{
LOG_I("-Resume-");
USBD_ENABLE_BUS_INT(USBD_BUSINTEN_RSTIEN_Msk | USBD_BUSINTEN_SUSPENDIEN_Msk);
USBD_CLR_BUS_INT_FLAG(USBD_BUSINTSTS_RESUMEIF_Msk);
}
if (IrqSt & USBD_BUSINTSTS_SUSPENDIF_Msk)
{
LOG_I("-Suspend-");
USBD_ENABLE_BUS_INT(USBD_BUSINTEN_RSTIEN_Msk | USBD_BUSINTEN_RESUMEIEN_Msk | USBD_BUSINTEN_VBUSDETIEN_Msk);
USBD_CLR_BUS_INT_FLAG(USBD_BUSINTSTS_SUSPENDIF_Msk);
}
if (IrqSt & USBD_BUSINTSTS_HISPDIF_Msk)
{
USBD_ENABLE_CEP_INT(USBD_CEPINTEN_SETUPPKIEN_Msk);
USBD_CLR_BUS_INT_FLAG(USBD_BUSINTSTS_HISPDIF_Msk);
}
if (IrqSt & USBD_BUSINTSTS_DMADONEIF_Msk)
{
USBD_CLR_BUS_INT_FLAG(USBD_BUSINTSTS_DMADONEIF_Msk);
if (!(USBD->DMACTL & USBD_DMACTL_DMARD_Msk))
{
USBD_ENABLE_EP_INT(EPD, USBD_EPINTEN_RXPKIEN_Msk);
}
}
if (IrqSt & USBD_BUSINTSTS_PHYCLKVLDIF_Msk)
{
USBD_CLR_BUS_INT_FLAG(USBD_BUSINTSTS_PHYCLKVLDIF_Msk);
}
if (IrqSt & USBD_BUSINTSTS_VBUSDETIF_Msk)
{
if (USBD_IS_ATTACHED())
{
if (!nu_usbd.plugging_status)
{
LOG_I("PLUG IN");
/* USB Plug In */
nu_udc_enable();
rt_usbd_connect_handler(&_rt_obj_udc);
nu_usbd.plugging_status = 1;
}
}
else
{
if (nu_usbd.plugging_status)
{
LOG_I("Un-Plug");
/* USB Un-plug */
nu_udc_disable();
rt_usbd_disconnect_handler(&_rt_obj_udc);
nu_usbd.plugging_status = 0;
}
}
USBD_CLR_BUS_INT_FLAG(USBD_BUSINTSTS_VBUSDETIF_Msk);
}
} //if (IrqStL & USBD_GINTSTS_USBIF_Msk)
/* Control Transfer */
if (IrqStL & USBD_GINTSTS_CEPIF_Msk)
{
IrqSt = USBD->CEPINTSTS & USBD->CEPINTEN;
if (IrqSt & USBD_CEPINTSTS_SETUPTKIF_Msk)
{
USBD_CLR_CEP_INT_FLAG(USBD_CEPINTSTS_SETUPTKIF_Msk);
return;
}
if (IrqSt & USBD_CEPINTSTS_SETUPPKIF_Msk)
{
USBD_CLR_CEP_INT_FLAG(USBD_CEPINTSTS_SETUPPKIF_Msk);
NU_SetupStageCallback(&nu_usbd);
USBD_CLR_CEP_INT_FLAG(USBD_CEPINTSTS_INTKIF_Msk
| USBD_CEPINTSTS_RXPKIF_Msk
| USBD_CEPINTSTS_STSDONEIF_Msk);
return;
}
if (IrqSt & USBD_CEPINTSTS_OUTTKIF_Msk)
{
USBD_CLR_CEP_INT_FLAG(USBD_CEPINTSTS_OUTTKIF_Msk);
rt_usbd_ep0_out_handler(&_rt_obj_udc, 0);
USBD_ENABLE_CEP_INT(USBD_CEPINTEN_RXPKIEN_Msk);
return;
}
if (IrqSt & USBD_CEPINTSTS_INTKIF_Msk)
{
USBD_ENABLE_CEP_INT(0);
USBD_CLR_CEP_INT_FLAG(USBD_CEPINTSTS_INTKIF_Msk);
rt_usbd_ep0_in_handler(&_rt_obj_udc);
return;
}
if (IrqSt & USBD_CEPINTSTS_PINGIF_Msk)
{
USBD_CLR_CEP_INT_FLAG(USBD_CEPINTSTS_PINGIF_Msk);
return;
}
if (IrqSt & USBD_CEPINTSTS_TXPKIF_Msk)
{
USBD_CLR_CEP_INT_FLAG(USBD_CEPINTSTS_TXPKIF_Msk
| USBD_CEPINTSTS_SETUPPKIF_Msk
| USBD_CEPINTSTS_STSDONEIF_Msk);
USBD_ENABLE_CEP_INT(USBD_CEPINTEN_INTKIEN_Msk
| USBD_CEPINTEN_SETUPPKIEN_Msk
| USBD_CEPINTEN_STSDONEIEN_Msk);
USBD_SET_CEP_STATE(USB_CEPCTL_NAKCLR);
return;
}
if (IrqSt & USBD_CEPINTSTS_RXPKIF_Msk)
{
USBD_CLR_CEP_INT_FLAG(USBD_CEPINTSTS_SETUPPKIF_Msk
| USBD_CEPINTSTS_STSDONEIF_Msk
| USBD_CEPINTSTS_RXPKIF_Msk);
USBD_SET_CEP_STATE(USB_CEPCTL_NAKCLR);
USBD_ENABLE_CEP_INT(USBD_CEPINTEN_SETUPPKIEN_Msk
| USBD_CEPINTEN_STSDONEIEN_Msk
| USBD_CEPINTEN_RXPKIEN_Msk);
return;
}
if (IrqSt & USBD_CEPINTSTS_NAKIF_Msk)
{
USBD_CLR_CEP_INT_FLAG(USBD_CEPINTSTS_NAKIF_Msk);
return;
}
if (IrqSt & USBD_CEPINTSTS_STALLIF_Msk)
{
USBD_CLR_CEP_INT_FLAG(USBD_CEPINTSTS_STALLIF_Msk);
return;
}
if (IrqSt & USBD_CEPINTSTS_ERRIF_Msk)
{
USBD_CLR_CEP_INT_FLAG(USBD_CEPINTSTS_ERRIF_Msk);
return;
}
if (IrqSt & USBD_CEPINTSTS_STSDONEIF_Msk)
{
USBD_CLR_CEP_INT_FLAG(USBD_CEPINTSTS_STSDONEIF_Msk | USBD_CEPINTSTS_SETUPPKIF_Msk);
USBD_ENABLE_CEP_INT(USBD_CEPINTEN_SETUPPKIEN_Msk);
if ((USBD_GET_ADDR() == 0)
&& ((uint8_t)((nu_usbd.base->SETUP1_0 >> 8) & 0xfful) == SET_ADDRESS))
{
USBD_SET_ADDR(nu_usbd.address_tmp);
LOG_I("SET ADDR: 0x%02x", nu_usbd.address_tmp);
nu_usbd.address_tmp = 0;
}
return;
}
if (IrqSt & USBD_CEPINTSTS_BUFFULLIF_Msk)
{
USBD_CLR_CEP_INT_FLAG(USBD_CEPINTSTS_BUFFULLIF_Msk);
return;
}
if (IrqSt & USBD_CEPINTSTS_BUFEMPTYIF_Msk)
{
USBD_CLR_CEP_INT_FLAG(USBD_CEPINTSTS_BUFEMPTYIF_Msk);
return;
}
} //if (IrqStL & USBD_GINTSTS_CEPIF_Msk)
// For End-points
IrqStAllEP = (IrqStL >> USBD_GINTSTS_EPAIF_Pos) & ((1 << USBD_MAX_EP) - 1);
// Find the position of first '1' in allch_sts.
while ((i = nu_ctz(IrqStAllEP)) != 32)
{
IrqSt = USBD->EP[i].EPINTSTS & USBD->EP[i].EPINTEN;
if (_ep_pool[i + 1].dir == USB_DIR_IN)
USBD_ENABLE_EP_INT(i, 0);
USBD_CLR_EP_INT_FLAG(i, IrqSt);
rt_usbd_ep_in_handler(&_rt_obj_udc, _ep_pool[i + 1].dir | EPADR_HW2SW(i), 0);
IrqStAllEP &= ~(1 << i);
}
}
static rt_err_t _init(rt_device_t device)
{
nu_sys_ipclk_enable(nu_usbd.clkidx);
nu_sys_ip_reset(nu_usbd.rstidx);
rt_hw_us_delay(1000);
/* USBD Open */
USBD_ENABLE_USB();
while (1)
{
USBD->EP[EPA].EPMPS = 0x20ul;
if (USBD->EP[EPA].EPMPS == 0x20ul)
{
break;
}
}
/* Force SE0 */
USBD_SET_SE0();
_nu_ep_partition();
#if ENABLE_FULL_SPEED_MODE_ONLY
USBD->OPER &= ~USBD_OPER_HISPDEN_Msk;
#else
USBD->OPER |= USBD_OPER_HISPDEN_Msk;
#endif
/* Install USBD interrupt */
rt_hw_interrupt_install(nu_usbd.irqn, nu_usbd_isr, &nu_usbd, nu_usbd.name);
rt_hw_interrupt_set_priority(nu_usbd.irqn, IRQ_LEVEL_1);
/* Enable USBD interrupt */
rt_hw_interrupt_umask(nu_usbd.irqn);
/* Start transaction */
USBD_CLR_SE0();
/* Get currect cable status */
nu_usbd.plugging_status = USBD_IS_ATTACHED() >> USBD_PHYCTL_VBUSDET_Pos;
return RT_EOK;
}
const static struct udcd_ops _udc_ops =
{
_set_address,
_set_config,
_ep_set_stall,
_ep_clear_stall,
_ep_enable,
_ep_disable,
_ep_read_prepare,
_ep_read,
_ep_write,
_ep0_send_status,
_suspend,
_wakeup,
};
#ifdef RT_USING_DEVICE_OPS
const static struct rt_device_ops _ops =
{
_init,
RT_NULL,
RT_NULL,
RT_NULL,
RT_NULL,
RT_NULL,
};
#endif
int nu_usbd_register(void)
{
rt_err_t result = RT_EOK;
rt_memset((void *)&_rt_obj_udc, 0, sizeof(struct udcd));
_rt_obj_udc.parent.type = RT_Device_Class_USBDevice;
#ifdef RT_USING_DEVICE_OPS
_rt_obj_udc.parent.ops = &_ops;
#else
_rt_obj_udc.parent.init = _init;
#endif
_rt_obj_udc.parent.user_data = &nu_usbd;
_rt_obj_udc.ops = &_udc_ops;
/* Register endpoint information */
_rt_obj_udc.ep_pool = _ep_pool;
_rt_obj_udc.ep0.id = &_ep_pool[0];
#if ENABLE_FULL_SPEED_MODE_ONLY
_rt_obj_udc.device_is_hs = RT_FALSE; /* Enable Full-speed only */
#else
_rt_obj_udc.device_is_hs = RT_TRUE; /* Support Hi-Speed */
#endif
result = rt_device_register((rt_device_t)&_rt_obj_udc, nu_usbd.name, 0);
RT_ASSERT(result == RT_EOK);
return rt_usb_device_init();
}
INIT_DEVICE_EXPORT(nu_usbd_register);
#endif
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