1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
|
/*
* Copyright (c) 2006-2024, RT-Thread Development Team
*
* SPDX-License-Identifier: Apache-2.0
*
* Change Logs:
* Date Author Notes
* 2024-4-30 IceBear003 the first version adapted from CherryUSB
*/
#include "board.h"
#include "drv_usbh.h"
#ifdef BSP_USING_USBH
#define LOG_TAG "drv.usbh"
#include "drv_log.h"
static struct uhcd uhcd;
static struct rt_completion urb_completion;
__attribute__((aligned(4))) int8_t usb_rx_buf[ MAX_PACKET_SIZE ];
__attribute__((aligned(4))) int8_t usb_tx_buf[ MAX_PACKET_SIZE ];
USBOTGH_FS_TypeDef *USBFSH = USBOTG_H_FS;
rt_err_t usbh_reset_port(rt_uint8_t port)
{
//Disable interrupt
USBFSH->INT_EN &= (~USBFS_UIE_DETECT);
USBFSH->HOST_CTRL &= ~USBFS_UH_SOF_EN;
//Set address
USBFSH->DEV_ADDR = (USBFS_UDA_GP_BIT & USBFSH->DEV_ADDR) | (0x00 & USBFS_USB_ADDR_MASK);
//Close port
USBFSH->HOST_CTRL &= ~USBFS_UH_PORT_EN;
//Reset
USBFSH->HOST_CTRL |= USBFS_UH_BUS_RESET;
rt_thread_mdelay(30);
USBFSH->HOST_CTRL &= ~USBFS_UH_BUS_RESET;
rt_thread_mdelay(20);
//Set speed
if ((USBFSH->HOST_CTRL & USBFS_UH_PORT_EN) == 0) { //Set speed only when port is closed
if(USBFSH->MIS_ST & USBFS_UMS_DM_LEVEL) //RB_UMS_DM_LEVEL: 1/Low 0/Full
{ //Low speed
USBFSH->BASE_CTRL |= USBFS_UC_LOW_SPEED;
USBFSH->HOST_CTRL |= USBFS_UH_LOW_SPEED;
USBFSH->HOST_SETUP |= USBFS_UH_PRE_PID_EN;
}
else
{ //Full speed
USBFSH->BASE_CTRL &= ~USBFS_UC_LOW_SPEED;
USBFSH->HOST_CTRL &= ~USBFS_UH_LOW_SPEED;
USBFSH->HOST_SETUP &= ~USBFS_UH_PRE_PID_EN;
}
}
//Enable port
USBFSH->HOST_CTRL |= USBFS_UH_PORT_EN;
USBFSH->HOST_SETUP |= USBFS_UH_SOF_EN;
//Enable interrupt
USBFSH->INT_EN |= USBFS_UIE_DETECT;
if(USBFSH->INT_FG & USBFS_UIF_DETECT)
if(USBFSH->MIS_ST & USBFS_UMS_DEV_ATTACH)
USBFSH->INT_FG = USBFS_UIF_DETECT;
return RT_EOK;
}
int usbh_pipe_xfer(upipe_t pipe, rt_uint8_t token, void *buffer, int nbytes, int timeouts)
{
rt_uint8_t usb_pid;
rt_uint8_t *tog = (rt_uint8_t *)pipe->user_data;
USBFSH->DEV_ADDR = (USBFS_UDA_GP_BIT & USBFSH->DEV_ADDR) | (pipe->pipe_index & USBFS_USB_ADDR_MASK);
if(pipe->ep.bEndpointAddress & USB_DIR_IN)
{
usb_pid = USB_PID_IN;
USBFSH->HOST_TX_LEN = 0x00;
}
else
{
usb_pid = (token == USBH_PID_SETUP) ? USB_PID_SETUP : USB_PID_OUT;
rt_memcpy(usb_tx_buf, buffer, nbytes);
USBFSH->HOST_TX_LEN = nbytes;
}
switch(usb_pid)
{
case USB_PID_IN:
if (nbytes == 0) *tog = USB_PID_DATA1;
USBFSH->HOST_RX_CTRL = (*tog == USB_PID_DATA1) ? USBFS_UH_R_TOG : 0x00;
break;
case USB_PID_OUT:
if (nbytes == 0) *tog = USB_PID_DATA1;
USBFSH->HOST_TX_CTRL = (*tog == USB_PID_DATA1) ? USBFS_UH_T_TOG : 0x00;
break;
case USB_PID_SETUP:
*(rt_uint8_t *)pipe->inst->pipe_ep0_out->user_data = USB_PID_DATA0;
*(rt_uint8_t *)pipe->inst->pipe_ep0_in->user_data = USB_PID_DATA1;
USBFSH->HOST_TX_CTRL = (*tog == USB_PID_DATA1) ? USBFS_UH_T_TOG : 0x00;
break;
}
rt_uint16_t try = 3;
if ((pipe->ep.bmAttributes & USB_EP_ATTR_TYPE_MASK) == USB_EP_ATTR_CONTROL)
try = 1000;
while(try--)
{
USBFSH->HOST_EP_PID = (usb_pid << 4) | (pipe->ep.bEndpointAddress & 0x0F);
if (rt_completion_wait(&urb_completion, timeouts) != RT_EOK)
continue;
if (USBFSH->INT_ST & USBHS_UIS_TOG_OK)
*tog = (*tog == USB_PID_DATA0) ? USB_PID_DATA1 : USB_PID_DATA0;
switch(USBFSH->INT_ST & USBHS_UIS_H_RES_MASK)
{
case USB_PID_DATA0:
case USB_PID_DATA1:
pipe->status = UPIPE_STATUS_OK;
if (pipe->callback != RT_NULL)
pipe->callback(pipe);
if (usb_pid == USB_PID_IN)
{
rt_memcpy(buffer, usb_rx_buf, USBFSH->RX_LEN);
return USBFSH->RX_LEN;
}
return nbytes;
case USB_PID_ACK:
pipe->status = UPIPE_STATUS_OK;
if (pipe->callback != RT_NULL)
pipe->callback(pipe);
return nbytes;
case USB_PID_NAK:
if (pipe->ep.bmAttributes == USB_EP_ATTR_INT)
rt_thread_delay((pipe->ep.bInterval * RT_TICK_PER_SECOND / 1000) > 0 ? (pipe->ep.bInterval * RT_TICK_PER_SECOND / 1000) : 1);
rt_thread_mdelay(1);
continue;
case USB_PID_STALL:
pipe->status = UPIPE_STATUS_STALL;
if (pipe->callback != RT_NULL)
pipe->callback(pipe);
return 0;
default:
break;
}
}
pipe->status = UPIPE_STATUS_ERROR;
if (pipe->callback != RT_NULL)
pipe->callback(pipe);
return -RT_ERROR;
}
rt_err_t usbh_open_pipe(upipe_t pipe)
{
pipe->pipe_index = pipe->inst->address & USBFS_USB_ADDR_MASK;
pipe->user_data = rt_malloc(sizeof(rt_uint8_t));
*(rt_uint8_t *)pipe->user_data = (pipe->ep.bEndpointAddress & USB_DIR_IN) ? USB_PID_DATA0 : USB_PID_DATA0;
return RT_EOK;
}
rt_err_t usbh_close_pipe(upipe_t pipe)
{
rt_free(pipe->user_data);
return RT_EOK;
}
rt_err_t hcd_init(rt_device_t dev)
{
//Force reset handler clear FIFO & interrupt flags
USBFSH->BASE_CTRL = USBFS_UC_RESET_SIE | USBFS_UC_CLR_ALL;
rt_thread_mdelay(20);
USBFSH->BASE_CTRL = 0; //Set SIE to 0 manually
USBFSH->BASE_CTRL = USBFS_UC_HOST_MODE;
USBFSH->HOST_CTRL = 0;
USBFSH->DEV_ADDR = 0;
USBFSH->HOST_EP_MOD = USBFS_UH_EP_TX_EN | USBFS_UH_EP_RX_EN; //SETUP/OUT/IN
USBFSH->HOST_RX_DMA = (uint32_t)usb_rx_buf;
USBFSH->HOST_TX_DMA = (uint32_t)usb_tx_buf;
USBFSH->HOST_RX_CTRL = 0;
USBFSH->HOST_TX_CTRL = 0;
USBFSH->BASE_CTRL = USBFS_UC_HOST_MODE | USBFS_UC_INT_BUSY | USBFS_UC_DMA_EN;
USBFSH->INT_FG = 0xFF;
USBFSH->INT_EN = USBFS_UIE_TRANSFER | USBFS_UIE_DETECT;
if( SystemCoreClock == 144000000 )
RCC_OTGFSCLKConfig( RCC_OTGFSCLKSource_PLLCLK_Div3 );
else if( SystemCoreClock == 96000000 )
RCC_OTGFSCLKConfig( RCC_OTGFSCLKSource_PLLCLK_Div2 );
else if( SystemCoreClock == 48000000 )
RCC_OTGFSCLKConfig( RCC_OTGFSCLKSource_PLLCLK_Div1 );
RCC_AHBPeriphClockCmd( RCC_AHBPeriph_OTG_FS, ENABLE );
NVIC_EnableIRQ(OTG_FS_IRQn);
rt_completion_init(&urb_completion);
return RT_EOK;
}
static struct uhcd_ops uhcd_ops =
{
.reset_port = usbh_reset_port,
.pipe_xfer = usbh_pipe_xfer,
.open_pipe = usbh_open_pipe,
.close_pipe = usbh_close_pipe,
};
void OTG_HS_IRQHandler() __attribute__((interrupt("WCH-Interrupt-fast")));
void OTG_HS_IRQHandler()
{
rt_interrupt_enter();
if (USBFSH->INT_FG & USBFS_UIF_TRANSFER)
{
USBFSH->HOST_EP_PID = 0x00;
USBFSH->INT_FG = USBFS_UIF_TRANSFER;
rt_completion_done(&urb_completion); //本应在此处理的中断在传输函数里进行枚举
rt_kprintf("USB: Transfer finished\n");
}
else if (USBFSH->INT_FG & USBFS_UIF_DETECT)
{
if (USBFSH->MIS_ST & USBFS_UMS_DEV_ATTACH)
{
rt_usbh_root_hub_connect_handler(&uhcd, 1, RT_FALSE);
rt_kprintf("USB: Connect\n");
}
else
{
USBFSH->HOST_SETUP &= ~USBFS_UH_SOF_EN;
USBFSH->HOST_CTRL &= ~USBFS_UH_PORT_EN;
rt_usbh_root_hub_disconnect_handler(&uhcd, 1);
rt_kprintf("USB: Disconnect\n");
}
USBFSH->INT_FG = USBFS_UIF_DETECT;
}
else
{
rt_kprintf("USB: Unknown\n");
}
rt_interrupt_leave();
}
int rt_hw_usbh_init()
{
rt_err_t res = -RT_ERROR;
rt_memset((void *)&uhcd, 0, sizeof(struct uhcd));
uhcd.parent.type = RT_Device_Class_USBHost;
uhcd.parent.init = hcd_init;
uhcd.ops = &uhcd_ops;
uhcd.num_ports = 1;
res = rt_device_register(&uhcd.parent, "usbh", RT_DEVICE_FLAG_DEACTIVATE);
if (res != RT_EOK)
{
rt_kprintf("register usb host failed res = %d\r\n", res);
return -RT_ERROR;
}
rt_usb_host_init();
return RT_EOK;
}
#endif //BSP_USING_USBH
|
