1 #define USB_SELF_POWERED
3 typedef unsigned int uint;
10 #define MIN(x,y) ((x) < (y) ? (x) : (y))
11 #define MAX(x,y) ((x) > (y) ? (x) : (y))
13 /*** USB state structure ***/
16 PCD_HandleTypeDef *hpcd;
17 byte state; // USB_STATE_xxx
18 byte pre_suspend_state;
22 byte ep0_state; // USB_EP0_xxx
23 u16 ep0_setup_data_length;
24 u16 ep0_remaining_length;
29 void usb_init(struct usb *usb, PCD_HandleTypeDef *hpcd);
31 enum usb_device_state {
48 /*** Constants from USB specs ***/
50 #define USB_REQ_DIRECTION 0x80
53 USB_REQ_TYPE_STANDARD = 0x00,
54 USB_REQ_TYPE_CLASS = 0x20,
55 USB_REQ_TYPE_VENDOR = 0x40,
56 USB_REQ_TYPE_MASK = 0x60,
59 enum usb_req_recipient {
60 USB_REQ_RECIPIENT_DEVICE = 0x00,
61 USB_REQ_RECIPIENT_INTERFACE = 0x01,
62 USB_REQ_RECIPIENT_ENDPOINT = 0x02,
63 USB_REQ_RECIPIENT_MASK = 0x1f,
66 enum usb_req_standard {
67 USB_REQ_GET_STATUS = 0x00,
68 USB_REQ_CLEAR_FEATURE = 0x01,
69 USB_REQ_SET_FEATURE = 0x03,
70 USB_REQ_SET_ADDRESS = 0x05,
71 USB_REQ_GET_DESCRIPTOR = 0x06,
72 USB_REQ_SET_DESCRIPTOR = 0x07,
73 USB_REQ_GET_CONFIGURATION = 0x08,
74 USB_REQ_SET_CONFIGURATION = 0x09,
75 USB_REQ_GET_INTERFACE = 0x0A,
76 USB_REQ_SET_INTERFACE = 0x0B,
77 USB_REQ_SYNCH_FRAME = 0x0C,
81 USB_DESC_TYPE_DEVICE = 1,
82 USB_DESC_TYPE_CONFIGURATION = 2,
83 USB_DESC_TYPE_STRING = 3,
84 USB_DESC_TYPE_INTERFACE = 4,
85 USB_DESC_TYPE_ENDPOINT = 5,
86 USB_DESC_TYPE_DEVICE_QUALIFIER = 6,
87 USB_DESC_TYPE_OTHER_SPEED_CONFIGURATION = 7,
88 USB_DESC_TYPE_BOS = 0x0F,
92 USB_DEV_STATUS_REMOTE_WAKEUP = 2,
93 USB_DEV_STATUS_SELF_POWERED = 1,
97 USB_FEATURE_EP_HALT = 0,
98 USB_FEATURE_REMOTE_WAKEUP = 1,
99 USB_FEATURE_TEST_MODE = 2,
102 #define USB_HS_MAX_PACKET_SIZE 512
103 #define USB_FS_MAX_PACKET_SIZE 64
104 #define USB_MAX_EP0_SIZE 64
107 USB_EP_TYPE_CTRL = 0,
108 USB_EP_TYPE_ISOC = 1,
109 USB_EP_TYPE_BULK = 2,
110 USB_EP_TYPE_INTR = 3,
113 /*** Wrappers around HAL routines ***/
115 // Wrappers return HAL_OK / HAL_ERROR / HAL_BUSY / HAL_TIMEOUT
117 static inline HAL_StatusTypeDef usb_ep_open(struct usb *usb, byte ep_addr, byte ep_type, byte ep_max_size)
119 return HAL_PCD_EP_Open(usb->hpcd, ep_addr, ep_max_size, ep_type);
122 static inline HAL_StatusTypeDef usb_ep_close(struct usb *usb, byte ep_addr)
124 return HAL_PCD_EP_Close(usb->hpcd, ep_addr);
127 static inline HAL_StatusTypeDef usb_ep_flush(struct usb *usb, byte ep_addr)
129 return HAL_PCD_EP_Flush(usb->hpcd, ep_addr);
132 static inline HAL_StatusTypeDef usb_ep_stall(struct usb *usb, byte ep_addr)
134 return HAL_PCD_EP_SetStall(usb->hpcd, ep_addr);
137 static inline HAL_StatusTypeDef usb_ep_unstall(struct usb *usb, byte ep_addr)
139 return HAL_PCD_EP_ClrStall(usb->hpcd, ep_addr);
142 static inline int usb_ep_is_stalled(struct usb *usb, byte ep_addr)
144 return ((ep_addr & 0x80) ? usb->hpcd->IN_ep : usb->hpcd->OUT_ep) [ep_addr & 0x7f].is_stall;
147 static inline HAL_StatusTypeDef usb_ep_transmit(struct usb *usb, byte ep_addr, byte *buf, u32 size)
149 return HAL_PCD_EP_Transmit(usb->hpcd, ep_addr, buf, size);
152 static inline HAL_StatusTypeDef usb_ep_receive(struct usb *usb, byte ep_addr, byte *buf, u32 size)
154 return HAL_PCD_EP_Receive(usb->hpcd, ep_addr, buf, size);
157 static inline u32 usb_ep_received_size(struct usb *usb, byte ep_addr)
159 return HAL_PCD_EP_GetRxCount(usb->hpcd, ep_addr);