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rt-thread/bsp/imxrt/libraries/drivers/drv_usbh.c

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/*
* Copyright (c) 2006-2018, RT-Thread Development Team
*
* SPDX-License-Identifier: Apache-2.0
*
* Change Logs:
* Date Author Notes
* 2017-10-30 ZYH the first version
* 2019-12-19 tyustli port to stm32 series
* 2021-01-19 Leslie Lee port to imxrt series
*/
#include <rtthread.h>
#ifdef BSP_USING_USB_HOST
#include "drv_usbh.h"
#include <usb/include/usb_host_config.h>
#include <usb/include/usb.h>
#include <usb/phy/usb_phy.h>
#include <usb/host/usb_host.h>
#include <usb/host/usb_host_hci.h>
#include <rtdevice.h>
/* USB PHY configuration */
#ifndef BOARD_USB_PHY_D_CAL
#define BOARD_USB_PHY_D_CAL (0x0CU)
#endif
#ifndef BOARD_USB_PHY_TXCAL45DP
#define BOARD_USB_PHY_TXCAL45DP (0x06U)
#endif
#ifndef BOARD_USB_PHY_TXCAL45DM
#define BOARD_USB_PHY_TXCAL45DM (0x06U)
#endif
enum
{
#ifdef BSP_USB0_HOST
USBH0_INDEX,
#endif
#ifdef BSP_USB1_HOST
USBH1_INDEX,
#endif
};
struct imxrt_usb_host_pipe
{
usb_host_pipe_handle pipe_handle;
struct rt_completion urb_completion;
usb_status_t transfer_status;
}
struct imxrt_usb_host
{
struct uhcd uhcd;
usb_host_handle host_handle;
usb_device_handle device_handle;
struct imxrt_usb_host_pipe pipes[16];
volatile rt_bool_t connect_status;
char *name;
};
static struct imxrt_usb_host imxrt_usb_host_obj[] =
{
#ifdef BSP_USB0_HOST
{
.connect_status = RT_FALSE,
.name = "usbh0"
},
#endif
#ifdef BSP_USB1_HOST
{
.connect_status = RT_FALSE,
.name = "usbh1"
},
#endif
};
static void _imxrt_usb_host_send_callback(void *param, usb_host_transfer_t *transfer, usb_status_t status)
{
struct imxrt_usb_host_pipe *pipe = (struct imxrt_usb_host_pipe *)param;
pipe->transfer_status = status;
rt_completion_done(pipe->urb_completion);
}
/*!
* @brief Initializes USB specific setting that was not set by the Clocks tool.
*/
static void USB_HostClockInit(usb_controller_index_t controller_id)
{
usb_phy_config_struct_t phyConfig = {
BOARD_USB_PHY_D_CAL, BOARD_USB_PHY_TXCAL45DP, BOARD_USB_PHY_TXCAL45DM,
};
uint32_t notUsed = 0;
if (controller_id == kUSB_ControllerEhci0)
{
CLOCK_EnableUsbhs0PhyPllClock(kCLOCK_Usbphy480M, 480000000U);
CLOCK_EnableUsbhs0Clock(kCLOCK_Usb480M, 480000000U);
}
else
{
CLOCK_EnableUsbhs1PhyPllClock(kCLOCK_Usbphy480M, 480000000U);
CLOCK_EnableUsbhs1Clock(kCLOCK_Usb480M, 480000000U);
}
USB_EhciPhyInit(controller_id, notUsed, &phyConfig);
}
/*!
* @brief Enables interrupt service routines for device.
*/
void USB_HostIsrEnable(usb_controller_index_t controller_id)
{
uint8_t irqNumber;
#if ((defined USB_HOST_CONFIG_EHCI) && (USB_HOST_CONFIG_EHCI > 0U))
IRQn_Type usbHOSTEhciIrq[] = USBHS_IRQS;
irqNumber = usbHOSTEhciIrq[controller_id - kUSB_ControllerEhci0];
#endif
/* Install isr, set priority, and enable IRQ. */
#if defined(__GIC_PRIO_BITS)
GIC_SetPriority((IRQn_Type)irqNumber, USB_HOST_INTERRUPT_PRIORITY);
#else
NVIC_SetPriority((IRQn_Type)irqNumber, USB_HOST_INTERRUPT_PRIORITY);
#endif
EnableIRQ((IRQn_Type)irqNumber);
}
#ifdef BSP_USB0_HOST
void USB_OTG1_IRQHandler(void)
{
/* enter interrupt */
rt_interrupt_enter();
USB_HostEhciIsrFunction(imxrt_usb_host_obj[USBH0_INDEX].host_handle);
/* leave interrupt */
rt_interrupt_leave();
}
static rt_err_t _ehci0_reset_port(rt_uint8_t port)
{
RT_DEBUG_LOG(RT_DEBUG_USB, ("reset port\n"));
USB_HostEhciControlBus((usb_host_ehci_instance_t *)((usb_host_instance_t *)imxrt_usb_host_obj[USBH0_INDEX].host_handle)->controllerHandle, kUSB_HostBusReset);
return RT_EOK;
}
static int _ehci0_pipe_xfer(upipe_t pipe, rt_uint8_t token, void *buffer, int nbytes, int timeouts)
{
int timeout = timeouts;
if (!imxrt_usb_host_obj[USBH0_INDEX].connect_status)
{
return -1;
}
usb_host_transfer_t *transfer;
if (imxrt_usb_host_obj[USBH0_INDEX].pipes[pipe->pipe_index].pipe_handle == NULL)
{
RT_DEBUG_LOG(RT_DEBUG_USB, ("error operation on null pipe\n"));
return -1;
}
if (USB_HostMallocTransfer(imxrt_usb_host_obj[USBH0_INDEX].host_handle, &transfer) != kStatus_USB_Success)
{
RT_DEBUG_LOG(RT_DEBUG_USB, ("error to get transfer\n"));
return -1;
}
transfer->transferBuffer = buffer;
transfer->transferLength = nbytes;
transfer->callbackFn = _imxrt_usb_host_send_callback;
transfer->callbackParam = &(imxrt_usb_host_obj[USBH0_INDEX].pipes[pipe->pipe_index]);
rt_completion_init(&(imxrt_usb_host_obj[USBH0_INDEX].pipes[pipe->pipe_index].urb_completion));
if (USB_HostSend(imxrt_usb_host_obj[USBH0_INDEX].host_handle, imxrt_usb_host_obj[USBH0_INDEX].pipes[pipe->pipe_index].pipe_handle, transfer) != kStatus_USB_Success)
{
RT_DEBUG_LOG(RT_DEBUG_USB, ("usb host failed to send\n"));
(void)USB_HostFreeTransfer(imxrt_usb_host_obj[USBH0_INDEX].host_handle, transfer);
return -1;
}
if (-RT_ETIMEOUT == rt_completion_wait(&(imxrt_usb_host_obj[USBH0_INDEX].pipes[pipe->pipe_index].urb_completion), timeout))
{
RT_DEBUG_LOG(RT_DEBUG_USB, ("usb transfer timeout\n"));
(void)USB_HostFreeTransfer(imxrt_usb_host_obj[USBH0_INDEX].host_handle, transfer);
return -1;
}
// rt_thread_mdelay(1);
switch (imxrt_usb_host_obj[USBH0_INDEX].pipes[pipe->pipe_index].transfer_status)
{
case kStatus_USB_Success:
{
RT_DEBUG_LOG(RT_DEBUG_USB, ("ok\n"));
pipe->status = UPIPE_STATUS_OK;
if (pipe->callback != RT_NULL)
{
pipe->callback(pipe);
}
size_t size = transfer.transferSofar;
(void)USB_HostFreeTransfer(imxrt_usb_host_obj[USBH0_INDEX].host_handle, transfer);
if (pipe->ep.bEndpointAddress & 0x80)
{
return size;
}
else if (pipe->ep.bEndpointAddress & 0x00)
{
return size;
}
return nbytes;
break;
}
case kStatus_USB_TransferStall:
{
RT_DEBUG_LOG(RT_DEBUG_USB, ("stall\n"));
pipe->status = UPIPE_STATUS_STALL;
if (pipe->callback != RT_NULL)
{
pipe->callback(pipe);
}
(void)USB_HostFreeTransfer(imxrt_usb_host_obj[USBH0_INDEX].host_handle, transfer);
return -1;
break;
}
case kStatus_USB_TransferFailed:
default:
{
RT_DEBUG_LOG(RT_DEBUG_USB, ("error\n"));
pipe->status = UPIPE_STATUS_ERROR;
if (pipe->callback != RT_NULL)
{
pipe->callback(pipe);
}
(void)USB_HostFreeTransfer(imxrt_usb_host_obj[USBH0_INDEX].host_handle, transfer);
return -1;
break;
}
}
}
static rt_uint16_t _ehci0_pipe_index = 0;
static rt_uint8_t _ehci0_get_free_pipe_index(void)
{
rt_uint8_t idx;
for (idx = 1; idx < 16; idx++)
{
if (!(_ehci0_pipe_index & (0x01 << idx)))
{
_ehci0_pipe_index |= (0x01 << idx);
return idx;
}
}
return 0xff;
}
static void _ehci0_free_pipe_index(rt_uint8_t index)
{
_ehci0_pipe_index &= ~(0x01 << index);
}
static rt_err_t _ehci0_open_pipe(upipe_t pipe)
{
pipe->pipe_index = _ehci0_get_free_pipe_index();
if (pipe->pipe_index == 0xFF)
{
return -RT_ERROR;
}
usb_host_pipe_init_t pipe_init =
{
.devInstance = imxrt_usb_host_obj[USBH0_INDEX].device_handle,
.pipeType = pipe->ep.bmAttributes,
.direction = (pipe->ep.bEndpointAddress & USB_DIR_IN) ? USB_IN : USB_OUT,
.endpointAddress = (pipe->ep.bEndpointAddress & USB_DESCRIPTOR_ENDPOINT_ADDRESS_NUMBER_MASK),
.interval = pipe->ep.bInterval,
.maxPacketSize = (uint16_t)(pipe->ep.wMaxPacketSize & USB_DESCRIPTOR_ENDPOINT_MAXPACKETSIZE_SIZE_MASK),
.numberPerUframe = (uint8_t)(pipe->ep.wMaxPacketSize & USB_DESCRIPTOR_ENDPOINT_MAXPACKETSIZE_MULT_TRANSACTIONS_MASK),
.nakCount = USB_HOST_CONFIG_MAX_NAK,
};
USB_HostOpenPipe(imxrt_usb_host_obj[USBH0_INDEX].host_handle, &imxrt_usb_host_obj[USBH0_INDEX].pipes[pipe->pipe_index].pipe_handle, &pipe_init);
return RT_EOK;
}
static rt_err_t _ehci0_close_pipe(upipe_t pipe)
{
(void)USB_HostClosePipe(imxrt_usb_host_obj[USBH0_INDEX].host_handle, imxrt_usb_host_obj[USBH0_INDEX].pipes[pipe->pipe_index].pipe_handle);
_ehci0_free_pipe_index(pipe->pipe_index);
return RT_EOK;
}
static struct uhcd_ops _ehci0_uhcd_ops =
{
_ehci0_reset_port,
_ehci0_pipe_xfer,
_ehci0_open_pipe,
_ehci0_close_pipe,
};
static usb_status_t usb0_host_callback(usb_device_handle handle, usb_host_configuration_handle config_handle, rt_uint32_t event_code)
{
usb_status_t status0;
usb_status_t status = kStatus_USB_Success;
switch (eventCode)
{
case kUSB_HostEventAttach:
if (!imxrt_usb_host_obj[USBH0_INDEX].connect_status)
{
imxrt_usb_host_obj[USBH0_INDEX].connect_status = RT_TRUE;
imxrt_usb_host_obj[USBH0_INDEX].device_handle = handle;
RT_DEBUG_LOG(RT_DEBUG_USB, ("usb connected\n"));
rt_usbh_root_hub_connect_handler(imxrt_usb_host_obj[USBH0_INDEX].uhcd, OTG_PORT, RT_FALSE);
}
break;
case kUSB_HostEventNotSupported:
RT_DEBUG_LOG(RT_DEBUG_USB, ("usb device not supported\n"));
status = kStatus_USB_Error;
break;
case kUSB_HostEventEnumerationDone:
RT_DEBUG_LOG(RT_DEBUG_USB, ("enumeration done\n"));
break;
case kUSB_HostEventDetach:
if (imxrt_usb_host_obj[USBH0_INDEX].connect_status)
{
imxrt_usb_host_obj[USBH0_INDEX].connect_status = RT_FALSE;
imxrt_usb_host_obj[USBH0_INDEX].device_handle = handle;
RT_DEBUG_LOG(RT_DEBUG_USB, ("usb disconnnect\n"));
rt_usbh_root_hub_disconnect_handler(imxrt_usb_host_obj[USBH0_INDEX].uhcd, OTG_PORT);
}
break;
default:
break;
}
return status;
}
static rt_err_t _ehci0_usbh_init(rt_device_t device)
{
USB_HostClockInit(kUSB_ControllerEhci0);
if (kStatus_USB_Success == USB_HostInit(kUSB_ControllerEhci0, &imxrt_usb_host_obj[USBH0_INDEX].host_handle, usb0_host_callback))
{
USB_HostIsrEnable(kUSB_ControllerEhci0);
}
else
{
rt_kprintf("USB_HostInit ehci0 error\r\n");
return -RT_ERROR;
}
return RT_EOK;
}
#endif
#ifdef BSP_USB1_HOST
void USB_OTG2_IRQHandler(void)
{
/* enter interrupt */
rt_interrupt_enter();
USB_HostEhciIsrFunction(imxrt_usb_host_obj[USBH1_INDEX].host_handle);
/* leave interrupt */
rt_interrupt_leave();
}
static rt_err_t _ehci1_reset_port(rt_uint8_t port)
{
RT_DEBUG_LOG(RT_DEBUG_USB, ("reset port\n"));
USB_HostEhciControlBus((usb_host_ehci_instance_t *)((usb_host_instance_t *)imxrt_usb_host_obj[USBH1_INDEX].host_handle)->controllerHandle, kUSB_HostBusReset);
return RT_EOK;
}
static int _ehci1_pipe_xfer(upipe_t pipe, rt_uint8_t token, void *buffer, int nbytes, int timeouts)
{
int timeout = timeouts;
if (!imxrt_usb_host_obj[USBH1_INDEX].connect_status)
{
return -1;
}
usb_host_transfer_t *transfer;
if (imxrt_usb_host_obj[USBH1_INDEX].pipes[pipe->pipe_index].pipe_handle == NULL)
{
RT_DEBUG_LOG(RT_DEBUG_USB, ("error operation on null pipe\n"));
return -1;
}
if (USB_HostMallocTransfer(imxrt_usb_host_obj[USBH1_INDEX].host_handle, &transfer) != kStatus_USB_Success)
{
RT_DEBUG_LOG(RT_DEBUG_USB, ("error to get transfer\n"));
return -1;
}
transfer->transferBuffer = buffer;
transfer->transferLength = nbytes;
transfer->callbackFn = _imxrt_usb_host_send_callback;
transfer->callbackParam = &(imxrt_usb_host_obj[USBH1_INDEX].pipes[pipe->pipe_index]);
rt_completion_init(&(imxrt_usb_host_obj[USBH1_INDEX].pipes[pipe->pipe_index].urb_completion));
if (USB_HostSend(imxrt_usb_host_obj[USBH1_INDEX].host_handle, imxrt_usb_host_obj[USBH1_INDEX].pipes[pipe->pipe_index].pipe_handle, transfer) != kStatus_USB_Success)
{
RT_DEBUG_LOG(RT_DEBUG_USB, ("usb host failed to send\n"));
(void)USB_HostFreeTransfer(imxrt_usb_host_obj[USBH1_INDEX].host_handle, transfer);
return -1;
}
if (-RT_ETIMEOUT == rt_completion_wait(&(imxrt_usb_host_obj[USBH1_INDEX].pipes[pipe->pipe_index].urb_completion), timeout))
{
RT_DEBUG_LOG(RT_DEBUG_USB, ("usb transfer timeout\n"));
(void)USB_HostFreeTransfer(imxrt_usb_host_obj[USBH1_INDEX].host_handle, transfer);
return -1;
}
// rt_thread_mdelay(1);
switch (imxrt_usb_host_obj[USBH1_INDEX].pipes[pipe->pipe_index].transfer_status)
{
case kStatus_USB_Success:
{
RT_DEBUG_LOG(RT_DEBUG_USB, ("ok\n"));
pipe->status = UPIPE_STATUS_OK;
if (pipe->callback != RT_NULL)
{
pipe->callback(pipe);
}
size_t size = transfer.transferSofar;
(void)USB_HostFreeTransfer(imxrt_usb_host_obj[USBH1_INDEX].host_handle, transfer);
if (pipe->ep.bEndpointAddress & 0x80)
{
return size;
}
else if (pipe->ep.bEndpointAddress & 0x00)
{
return size;
}
return nbytes;
break;
}
case kStatus_USB_TransferStall:
{
RT_DEBUG_LOG(RT_DEBUG_USB, ("stall\n"));
pipe->status = UPIPE_STATUS_STALL;
if (pipe->callback != RT_NULL)
{
pipe->callback(pipe);
}
(void)USB_HostFreeTransfer(imxrt_usb_host_obj[USBH1_INDEX].host_handle, transfer);
return -1;
break;
}
case kStatus_USB_TransferFailed:
default:
{
RT_DEBUG_LOG(RT_DEBUG_USB, ("error\n"));
pipe->status = UPIPE_STATUS_ERROR;
if (pipe->callback != RT_NULL)
{
pipe->callback(pipe);
}
(void)USB_HostFreeTransfer(imxrt_usb_host_obj[USBH1_INDEX].host_handle, transfer);
return -1;
break;
}
}
}
static rt_uint16_t _ehci1_pipe_index = 0;
static rt_uint8_t _ehci1_get_free_pipe_index(void)
{
rt_uint8_t idx;
for (idx = 1; idx < 16; idx++)
{
if (!(_ehci1_pipe_index & (0x01 << idx)))
{
_ehci1_pipe_index |= (0x01 << idx);
return idx;
}
}
return 0xff;
}
static void _ehci1_free_pipe_index(rt_uint8_t index)
{
_ehci1_pipe_index &= ~(0x01 << index);
}
static rt_err_t _ehci1_open_pipe(upipe_t pipe)
{
pipe->pipe_index = _ehci1_get_free_pipe_index();
if (pipe->pipe_index == 0xFF)
{
return -RT_ERROR;
}
usb_host_pipe_init_t pipe_init =
{
.devInstance = imxrt_usb_host_obj[USBH1_INDEX].device_handle,
.pipeType = pipe->ep.bmAttributes,
.direction = (pipe->ep.bEndpointAddress & USB_DIR_IN) ? USB_IN : USB_OUT,
.endpointAddress = (pipe->ep.bEndpointAddress & USB_DESCRIPTOR_ENDPOINT_ADDRESS_NUMBER_MASK),
.interval = pipe->ep.bInterval,
.maxPacketSize = (uint16_t)(pipe->ep.wMaxPacketSize & USB_DESCRIPTOR_ENDPOINT_MAXPACKETSIZE_SIZE_MASK),
.numberPerUframe = (uint8_t)(pipe->ep.wMaxPacketSize & USB_DESCRIPTOR_ENDPOINT_MAXPACKETSIZE_MULT_TRANSACTIONS_MASK),
.nakCount = USB_HOST_CONFIG_MAX_NAK,
};
USB_HostOpenPipe(imxrt_usb_host_obj[USBH1_INDEX].host_handle, &imxrt_usb_host_obj[USBH1_INDEX].pipes[pipe->pipe_index].pipe_handle, &pipe_init);
return RT_EOK;
}
static rt_err_t _ehci1_close_pipe(upipe_t pipe)
{
(void)USB_HostClosePipe(imxrt_usb_host_obj[USBH1_INDEX].host_handle, imxrt_usb_host_obj[USBH1_INDEX].pipes[pipe->pipe_index].pipe_handle);
_ehci0_free_pipe_index(pipe->pipe_index);
return RT_EOK;
}
static struct uhcd_ops _ehci1_uhcd_ops =
{
_ehci1_reset_port,
_ehci1_pipe_xfer,
_ehci1_open_pipe,
_ehci1_close_pipe,
};
static usb_status_t usb1_host_callback(usb_device_handle handle, usb_host_configuration_handle config_handle, rt_uint32_t event_code)
{
usb_status_t status0;
usb_status_t status = kStatus_USB_Success;
switch (eventCode)
{
case kUSB_HostEventAttach:
if (!imxrt_usb_host_obj[USBH1_INDEX].connect_status)
{
imxrt_usb_host_obj[USBH1_INDEX].connect_status = RT_TRUE;
imxrt_usb_host_obj[USBH1_INDEX].device_handle = handle;
RT_DEBUG_LOG(RT_DEBUG_USB, ("usb connected\n"));
rt_usbh_root_hub_connect_handler(imxrt_usb_host_obj[USBH1_INDEX].uhcd, OTG_PORT, RT_FALSE);
}
break;
case kUSB_HostEventNotSupported:
RT_DEBUG_LOG(RT_DEBUG_USB, ("usb device not supported\n"));
status = kStatus_USB_Error;
break;
case kUSB_HostEventEnumerationDone:
RT_DEBUG_LOG(RT_DEBUG_USB, ("enumeration done\n"));
break;
case kUSB_HostEventDetach:
if (imxrt_usb_host_obj[USBH1_INDEX].connect_status)
{
imxrt_usb_host_obj[USBH1_INDEX].connect_status = RT_FALSE;
imxrt_usb_host_obj[USBH1_INDEX].device_handle = handle;
RT_DEBUG_LOG(RT_DEBUG_USB, ("usb disconnnect\n"));
rt_usbh_root_hub_disconnect_handler(imxrt_usb_host_obj[USBH1_INDEX].uhcd, OTG_PORT);
}
break;
default:
break;
}
return status;
}
static rt_err_t _ehci1_usbh_init(rt_device_t device)
{
USB_HostClockInit(kUSB_ControllerEhci1);
if (kStatus_USB_Success == USB_HostInit(kUSB_ControllerEhci1, &imxrt_usb_host_obj[USBH1_INDEX].host_handle, usb1_host_callback))
{
USB_HostIsrEnable(kUSB_ControllerEhci1);
}
else
{
rt_kprintf("USB_HostInit ehci1 error\r\n");
return -RT_ERROR;
}
return RT_EOK;
}
#endif
int imxrt_usbh_register(void)
{
rt_err_t res = -RT_ERROR;
struct imxrt_usb_host *usb_host_obj;
#ifdef BSP_USB0_HOST
usb_host_obj = &(imxrt_usb_host_obj[USBH0_INDEX]);
rt_memset((void *)(usb_host_obj->uhcd), 0, sizeof(struct uhcd));
usb_host_obj->uhcd.parent.type = RT_Device_Class_USBHost;
usb_host_obj->uhcd.parent.init = _ehci0_usbh_init;
usb_host_obj->uhcd.user_data = usb_host_obj;
usb_host_obj->uhcd.ops = &_ehci0_uhcd_ops;
usb_host_obj->uhcd.num_port = OTG_PORT;
res = rt_device_register(&(usb_host_obj->uhcd.parent), usb_host_obj->name, RT_DEVICE_FLAG_DEACTIVATE);
if (res != RT_EOK)
{
rt_kprintf("register usb0 host failed res = %d\r\n", res);
return -RT_ERROR;
}
rt_usb_host_init(usb_host_obj->name);
#endif
#ifdef BSP_USB1_HOST
usb_host_obj = &(imxrt_usb_host_obj[USBH1_INDEX]);
rt_memset((void *)(usb_host_obj->uhcd), 0, sizeof(struct uhcd));
usb_host_obj->uhcd.parent.type = RT_Device_Class_USBHost;
usb_host_obj->uhcd.parent.init = _ehci1_usbh_init;
usb_host_obj->uhcd.user_data = usb_host_obj;
usb_host_obj->uhcd.ops = &_ehci1_uhcd_ops;
usb_host_obj->uhcd.num_port = OTG_PORT;
res = rt_device_register(&(usb_host_obj->uhcd.parent), usb_host_obj->name, RT_DEVICE_FLAG_DEACTIVATE);
if (res != RT_EOK)
{
rt_kprintf("register usb0 host failed res = %d\r\n", res);
return -RT_ERROR;
}
rt_usb_host_init(usb_host_obj->name);
#endif
return RT_EOK;
}
INIT_DEVICE_EXPORT(imxrt_usbh_register);
#endif
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