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rt-thread-official/bsp/at32/libraries/rt_drivers/drv_usbotgh.c

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/*
* Copyright (c) 2006-2021, RT-Thread Development Team
*
* SPDX-License-Identifier: Apache-2.0
*
* Change Logs:
* Date Author Notes
* 2023-02-28 leo first version
* 2024-02-26 shelton update drv_pipe_xfer
*/
#include <rtthread.h>
#include <rtdevice.h>
#include "drv_common.h"
#if defined(BSP_USING_HOST_USBOTG1) || defined(BSP_USING_HOST_USBOTG2)
#include "usbh_int.h"
#include "drv_usbotg.h"
#include "drv_config.h"
//#define DRV_DEBUG
#define LOG_TAG "drv.usb.fsh"
#include <drv_log.h>
static struct rt_completion urb_completion;
static volatile rt_bool_t connect_status = RT_FALSE;
static struct at32_usbotg *p_usbotg_instance = RT_NULL;
enum
{
#ifdef BSP_USING_HOST_USBOTG1
USBOTG1_INDEX,
#endif
#ifdef BSP_USING_HOST_USBOTG2
USBOTG2_INDEX,
#endif
};
static struct at32_usbotg usbotgh_config[] = {
#ifdef BSP_USING_HOST_USBOTG1
USBOTG1_CONFIG,
#endif
#ifdef BSP_USING_HOST_USBOTG2
USBOTG2_CONFIG,
#endif
};
#ifdef BSP_USING_HOST_USBOTG1
void OTGFS1_IRQHandler(void)
{
/* enter interrupt */
rt_interrupt_enter();
usbh_irq_handler(p_usbotg_instance->p_otg_core);
/* leave interrupt */
rt_interrupt_leave();
}
#endif
#ifdef BSP_USING_HOST_USBOTG2
void OTGFS2_IRQHandler(void)
{
/* enter interrupt */
rt_interrupt_enter();
usbh_irq_handler(p_usbotg_instance->p_otg_core);
/* leave interrupt */
rt_interrupt_leave();
}
#endif
void usbh_connect_callback(usbh_core_type *uhost)
{
uhcd_t hcd = (uhcd_t)uhost->pdata;
if (!connect_status)
{
connect_status = RT_TRUE;
LOG_D("usb connected");
rt_usbh_root_hub_connect_handler(hcd, 1, RT_FALSE);
}
}
void usbh_disconnect_callback(usbh_core_type *uhost)
{
uhcd_t hcd = (uhcd_t)uhost->pdata;
if (connect_status)
{
connect_status = RT_FALSE;
LOG_D("usb disconnnect");
rt_usbh_root_hub_disconnect_handler(hcd, 1);
}
}
void usbd_notify_urbchange_callback(usbh_core_type *uhost, uint8_t chnum, urb_sts_type sts)
{
rt_completion_done(&urb_completion);
}
static rt_err_t drv_reset_port(rt_uint8_t port)
{
LOG_D("reset port");
usbh_reset_port(&p_usbotg_instance->p_otg_core->host);
return RT_EOK;
}
static int drv_pipe_xfer(upipe_t pipe, rt_uint8_t token, void *buffer, int nbytes, int timeouts)
{
int timeout = timeouts;
volatile int retry = 0;
if(!connect_status)
{
return -1;
}
rt_completion_init(&urb_completion);
p_usbotg_instance->p_otg_core->host.hch[pipe->pipe_index].dir = (pipe->ep.bEndpointAddress & 0x80) >> 7;
if(token == 0U)
{
p_usbotg_instance->p_otg_core->host.hch[pipe->pipe_index].data_pid = HCH_PID_SETUP;
}
else
{
p_usbotg_instance->p_otg_core->host.hch[pipe->pipe_index].data_pid = HCH_PID_DATA1;
}
/* endpoint type */
switch(pipe->ep.bmAttributes)
{
/* endpoint is control type */
case EPT_CONTROL_TYPE:
if((token == 1U) && (((pipe->ep.bEndpointAddress & 0x80) >> 7) == 0U))
{
if(nbytes == 0U)
{
p_usbotg_instance->p_otg_core->host.hch[pipe->pipe_index].toggle_out = 1U;
}
if((&p_usbotg_instance->p_otg_core->host)->hch[pipe->pipe_index].toggle_out == 0U)
{
p_usbotg_instance->p_otg_core->host.hch[pipe->pipe_index].data_pid = HCH_PID_DATA0;
}
else
{
p_usbotg_instance->p_otg_core->host.hch[pipe->pipe_index].data_pid = HCH_PID_DATA1;
}
}
break;
/* endpoint is bulk type */
case EPT_BULK_TYPE:
if(((pipe->ep.bEndpointAddress & 0x80) >> 7) == 0U)
{
if( p_usbotg_instance->p_otg_core->host.hch[pipe->pipe_index].toggle_out == 0U)
{
p_usbotg_instance->p_otg_core->host.hch[pipe->pipe_index].data_pid = HCH_PID_DATA0;
}
else
{
p_usbotg_instance->p_otg_core->host.hch[pipe->pipe_index].data_pid = HCH_PID_DATA1;
}
}
else
{
if( p_usbotg_instance->p_otg_core->host.hch[pipe->pipe_index].toggle_in == 0U)
{
p_usbotg_instance->p_otg_core->host.hch[pipe->pipe_index].data_pid = HCH_PID_DATA0;
}
else
{
p_usbotg_instance->p_otg_core->host.hch[pipe->pipe_index].data_pid = HCH_PID_DATA1;
}
}
break;
/* endpoint is int type */
case EPT_INT_TYPE:
if(((pipe->ep.bEndpointAddress & 0x80) >> 7) == 0U)
{
if( p_usbotg_instance->p_otg_core->host.hch[pipe->pipe_index].toggle_out == 0U)
{
p_usbotg_instance->p_otg_core->host.hch[pipe->pipe_index].data_pid = HCH_PID_DATA0;
}
else
{
p_usbotg_instance->p_otg_core->host.hch[pipe->pipe_index].data_pid = HCH_PID_DATA1;
}
}
else
{
if( p_usbotg_instance->p_otg_core->host.hch[pipe->pipe_index].toggle_in == 0U)
{
p_usbotg_instance->p_otg_core->host.hch[pipe->pipe_index].data_pid = HCH_PID_DATA0;
}
else
{
p_usbotg_instance->p_otg_core->host.hch[pipe->pipe_index].data_pid = HCH_PID_DATA1;
}
}
break;
/* endpoint is isoc type */
case EPT_ISO_TYPE:
p_usbotg_instance->p_otg_core->host.hch[pipe->pipe_index].data_pid = HCH_PID_DATA0;
break;
default:
break;
}
/* set transfer buffer */
p_usbotg_instance->p_otg_core->host.hch[pipe->pipe_index].trans_buf = buffer;
/* set transfer len*/
p_usbotg_instance->p_otg_core->host.hch[pipe->pipe_index].trans_len = nbytes;
p_usbotg_instance->p_otg_core->host.hch[pipe->pipe_index].urb_sts = URB_IDLE;
p_usbotg_instance->p_otg_core->host.hch[pipe->pipe_index].ch_num = pipe->pipe_index;
p_usbotg_instance->p_otg_core->host.hch[pipe->pipe_index].trans_count = 0;
p_usbotg_instance->p_otg_core->host.hch[pipe->pipe_index].state = HCH_IDLE;
__resend:
/* data in/out for host */
usbh_in_out_request((&p_usbotg_instance->p_otg_core->host), pipe->pipe_index);
retry = 0xFFFFFFFF;
while(retry --)
{
rt_completion_wait(&urb_completion, timeout);
if(usbh_get_urb_status((&p_usbotg_instance->p_otg_core->host), pipe->pipe_index) == URB_NOTREADY)
{
if((pipe->ep.bEndpointAddress & 0x80) == 0)
{
goto __resend;
}
}
else if (usbh_get_urb_status(&p_usbotg_instance->p_otg_core->host, pipe->pipe_index) == URB_STALL)
{
LOG_D("stall");
pipe->status = UPIPE_STATUS_STALL;
if (pipe->callback != RT_NULL)
{
pipe->callback(pipe);
}
return -1;
}
else if (usbh_get_urb_status(&p_usbotg_instance->p_otg_core->host, pipe->pipe_index) == URB_ERROR)
{
LOG_D("error");
pipe->status = UPIPE_STATUS_ERROR;
if (pipe->callback != RT_NULL)
{
pipe->callback(pipe);
}
return -1;
}
else if (usbh_get_urb_status(&p_usbotg_instance->p_otg_core->host, pipe->pipe_index) == URB_DONE)
{
LOG_D("ok");
pipe->status = UPIPE_STATUS_OK;
if (pipe->callback != RT_NULL)
{
pipe->callback(pipe);
}
rt_size_t size = (&p_usbotg_instance->p_otg_core->host)->hch[pipe->pipe_index].trans_count;
if (pipe->ep.bEndpointAddress & 0x80)
{
return size;
}
else if (pipe->ep.bEndpointAddress & 0x00)
{
return size;
}
return nbytes;
}
}
return 0;
}
static rt_uint16_t pipe_index = 0;
static rt_uint8_t drv_get_free_pipe_index(void)
{
rt_uint8_t idx;
for (idx = 1; idx < 16; idx++)
{
if (!(pipe_index & (0x01 << idx)))
{
pipe_index |= (0x01 << idx);
return idx;
}
}
return 0xff;
}
static void drv_free_pipe_index(rt_uint8_t index)
{
pipe_index &= ~(0x01 << index);
}
static rt_err_t drv_open_pipe(upipe_t pipe)
{
pipe->pipe_index = drv_get_free_pipe_index();
usbh_hc_open(&p_usbotg_instance->p_otg_core->host,
pipe->pipe_index,
pipe->ep.bEndpointAddress,
pipe->inst->address,
pipe->ep.bmAttributes,
pipe->ep.wMaxPacketSize,
USB_PRTSPD_FULL_SPEED);
/* set data0 pid token*/
if (p_usbotg_instance->p_otg_core->host.hch[pipe->pipe_index].dir)
{
p_usbotg_instance->p_otg_core->host.hch[pipe->pipe_index].toggle_in = 0;
}
else
{
p_usbotg_instance->p_otg_core->host.hch[pipe->pipe_index].toggle_out = 0;
}
return RT_EOK;
}
static rt_err_t drv_close_pipe(upipe_t pipe)
{
usb_hch_halt((&p_usbotg_instance->p_otg_core->host)->usb_reg, pipe->pipe_index);
drv_free_pipe_index(pipe->pipe_index);
return RT_EOK;
}
static struct uhcd_ops _uhcd_ops =
{
drv_reset_port,
drv_pipe_xfer,
drv_open_pipe,
drv_close_pipe,
};
static rt_err_t at32_hcd_init(rt_device_t device)
{
/* usb gpio config */
at32_msp_usb_init(device);
/* enable otgfs irq */
nvic_irq_enable(p_usbotg_instance->irqn, 2, 0);
/* init usb */
usbh_init(p_usbotg_instance->p_otg_core,
p_usbotg_instance->dev_spd,
p_usbotg_instance->id);
return RT_EOK;
}
int at32_usbh_register(void)
{
rt_size_t obj_num;
rt_err_t result = 0;
int index;
obj_num = sizeof(usbotgh_config) / sizeof(struct at32_usbotg);
for (index = 0; index < obj_num; index++) {
uhcd_t uhcd = (uhcd_t)rt_malloc(sizeof(struct uhcd));
if (uhcd == RT_NULL)
{
rt_kprintf("uhcd malloc failed\r\n");
return -RT_ERROR;
}
rt_memset((void *)uhcd, 0, sizeof(struct uhcd));
otg_core_type *p_otg_core = (otg_core_type *)rt_malloc(sizeof(otg_core_type));
if (p_otg_core == RT_NULL)
{
rt_kprintf("otg_core malloc failed\r\n");
return -RT_ERROR;
}
rt_memset((void *)p_otg_core, 0, sizeof(otg_core_type));
uhcd->parent.type = RT_Device_Class_USBHost;
uhcd->parent.init = at32_hcd_init;
uhcd->parent.user_data = &(p_otg_core->host);
uhcd->ops = &_uhcd_ops;
uhcd->num_ports = 1;
p_otg_core->host.pdata = uhcd;
usbotgh_config[index].p_otg_core = p_otg_core;
result = rt_device_register(&uhcd->parent, usbotgh_config[index].name, RT_DEVICE_FLAG_DEACTIVATE);
RT_ASSERT(result == RT_EOK);
p_usbotg_instance = &usbotgh_config[index];
result = rt_usb_host_init(usbotgh_config[index].name);
RT_ASSERT(result == RT_EOK);
}
return result;
}
INIT_DEVICE_EXPORT(at32_usbh_register);
#endif
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