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
|
/*
* The MIT License (MIT)
*
* Copyright (c) 2021, Ha Thach (tinyusb.org)
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*
* This file is part of the TinyUSB stack.
*/
#ifndef _DWC2_STM32_H_
#define _DWC2_STM32_H_
#ifdef __cplusplus
extern "C" {
#endif
// EP_MAX : Max number of bi-directional endpoints including EP0
// EP_FIFO_SIZE : Size of dedicated USB SRAM
#if CFG_TUSB_MCU == OPT_MCU_STM32F1
#include "stm32f1xx.h"
#define EP_MAX_FS 4
#define EP_FIFO_SIZE_FS 1280
#elif CFG_TUSB_MCU == OPT_MCU_STM32F2
#include "stm32f2xx.h"
#define EP_MAX_FS USB_OTG_FS_MAX_IN_ENDPOINTS
#define EP_FIFO_SIZE_FS USB_OTG_FS_TOTAL_FIFO_SIZE
#elif CFG_TUSB_MCU == OPT_MCU_STM32F4
#include "stm32f4xx.h"
#define EP_MAX_FS USB_OTG_FS_MAX_IN_ENDPOINTS
#define EP_FIFO_SIZE_FS USB_OTG_FS_TOTAL_FIFO_SIZE
#define EP_MAX_HS USB_OTG_HS_MAX_IN_ENDPOINTS
#define EP_FIFO_SIZE_HS USB_OTG_HS_TOTAL_FIFO_SIZE
#elif CFG_TUSB_MCU == OPT_MCU_STM32H7
#include "stm32h7xx.h"
#define EP_MAX_FS 9
#define EP_FIFO_SIZE_FS 4096
#define EP_MAX_HS 9
#define EP_FIFO_SIZE_HS 4096
#elif CFG_TUSB_MCU == OPT_MCU_STM32F7
#include "stm32f7xx.h"
#define EP_MAX_FS 6
#define EP_FIFO_SIZE_FS 1280
#define EP_MAX_HS 9
#define EP_FIFO_SIZE_HS 4096
#elif CFG_TUSB_MCU == OPT_MCU_STM32L4
#include "stm32l4xx.h"
#define EP_MAX_FS 6
#define EP_FIFO_SIZE_FS 1280
#else
#error "Unsupported MCUs"
#endif
// On STM32 we associate Port0 to OTG_FS, and Port1 to OTG_HS
#if TUD_OPT_RHPORT == 0
#define DWC2_REG_BASE USB_OTG_FS_PERIPH_BASE
#define DWC2_EP_MAX EP_MAX_FS
#define DWC2_EP_FIFO_SIZE EP_FIFO_SIZE_FS
#define RHPORT_IRQn OTG_FS_IRQn
#else
#define DWC2_REG_BASE USB_OTG_HS_PERIPH_BASE
#define DWC2_EP_MAX EP_MAX_HS
#define DWC2_EP_FIFO_SIZE EP_FIFO_SIZE_HS
#define RHPORT_IRQn OTG_HS_IRQn
#endif
extern uint32_t SystemCoreClock;
TU_ATTR_ALWAYS_INLINE
static inline void dwc2_dcd_int_enable(uint8_t rhport)
{
(void) rhport;
NVIC_EnableIRQ(RHPORT_IRQn);
}
TU_ATTR_ALWAYS_INLINE
static inline void dwc2_dcd_int_disable (uint8_t rhport)
{
(void) rhport;
NVIC_DisableIRQ(RHPORT_IRQn);
}
TU_ATTR_ALWAYS_INLINE
static inline void dwc2_remote_wakeup_delay(void)
{
// try to delay for 1 ms
uint32_t count = SystemCoreClock / 1000;
while ( count-- ) __NOP();
}
// MCU specific PHY init, called BEFORE core reset
static inline void dwc2_phy_init(dwc2_regs_t * dwc2, uint8_t hs_phy_type)
{
if ( hs_phy_type == HS_PHY_TYPE_NONE )
{
// Enable on-chip FS PHY
dwc2->stm32_gccfg |= STM32_GCCFG_PWRDWN;
}else
{
// Disable FS PHY
dwc2->stm32_gccfg &= ~STM32_GCCFG_PWRDWN;
// Enable on-chip HS PHY
if (hs_phy_type == HS_PHY_TYPE_UTMI || hs_phy_type == HS_PHY_TYPE_UTMI_ULPI)
{
#ifdef USB_HS_PHYC
// Enable UTMI HS PHY
dwc2->stm32_gccfg |= STM32_GCCFG_PHYHSEN;
// Enable LDO
USB_HS_PHYC->USB_HS_PHYC_LDO |= USB_HS_PHYC_LDO_ENABLE;
// Wait until LDO ready
while ( 0 == (USB_HS_PHYC->USB_HS_PHYC_LDO & USB_HS_PHYC_LDO_STATUS) ) {}
uint32_t phyc_pll = 0;
// TODO Try to get HSE_VALUE from registers instead of depending CFLAGS
switch ( HSE_VALUE )
{
case 12000000: phyc_pll = USB_HS_PHYC_PLL1_PLLSEL_12MHZ ; break;
case 12500000: phyc_pll = USB_HS_PHYC_PLL1_PLLSEL_12_5MHZ ; break;
case 16000000: phyc_pll = USB_HS_PHYC_PLL1_PLLSEL_16MHZ ; break;
case 24000000: phyc_pll = USB_HS_PHYC_PLL1_PLLSEL_24MHZ ; break;
case 25000000: phyc_pll = USB_HS_PHYC_PLL1_PLLSEL_25MHZ ; break;
case 32000000: phyc_pll = USB_HS_PHYC_PLL1_PLLSEL_Msk ; break; // Value not defined in header
default:
TU_ASSERT(false, );
}
USB_HS_PHYC->USB_HS_PHYC_PLL = phyc_pll;
// Control the tuning interface of the High Speed PHY
// Use magic value (USB_HS_PHYC_TUNE_VALUE) from ST driver for F7
USB_HS_PHYC->USB_HS_PHYC_TUNE |= 0x00000F13U;
// Enable PLL internal PHY
USB_HS_PHYC->USB_HS_PHYC_PLL |= USB_HS_PHYC_PLL_PLLEN;
#endif
}
}
}
// MCU specific PHY update, it is called AFTER init() and core reset
static inline void dwc2_phy_update(dwc2_regs_t * dwc2, uint8_t hs_phy_type)
{
// used to set turnaround time for fullspeed, nothing to do in highspeed mode
if ( hs_phy_type == HS_PHY_TYPE_NONE )
{
// Turnaround timeout depends on the AHB clock dictated by STM32 Reference Manual
uint32_t turnaround;
if ( SystemCoreClock >= 32000000u )
turnaround = 0x6u;
else if ( SystemCoreClock >= 27500000u )
turnaround = 0x7u;
else if ( SystemCoreClock >= 24000000u )
turnaround = 0x8u;
else if ( SystemCoreClock >= 21800000u )
turnaround = 0x9u;
else if ( SystemCoreClock >= 20000000u )
turnaround = 0xAu;
else if ( SystemCoreClock >= 18500000u )
turnaround = 0xBu;
else if ( SystemCoreClock >= 17200000u )
turnaround = 0xCu;
else if ( SystemCoreClock >= 16000000u )
turnaround = 0xDu;
else if ( SystemCoreClock >= 15000000u )
turnaround = 0xEu;
else
turnaround = 0xFu;
dwc2->gusbcfg = (dwc2->gusbcfg & ~GUSBCFG_TRDT_Msk) | (turnaround << GUSBCFG_TRDT_Pos);
}
}
#ifdef __cplusplus
}
#endif
#endif /* _DWC2_STM32_H_ */
|
