1 #define USB_SELF_POWERED
2 #define USB_NUM_CONFIGURATIONS 1
5 /*** USB state structure ***/
8 * We have a single buffer for all control transfers.
9 * It must be able to contain:
11 * - 2-byte status replies
12 * - UTF-16 versions of all string descriptors
14 * In addition to that, its length must be even.
16 #define USB_EP0_BUF_SIZE 256
19 PCD_HandleTypeDef *hpcd;
20 byte state; // USB_STATE_xxx
21 byte pre_suspend_state;
25 byte ep0_state; // USB_EP0_xxx
26 u16 ep0_setup_data_length;
27 u16 ep0_remaining_length;
29 byte ep0_buf[USB_EP0_BUF_SIZE];
32 void usb_init(struct usb *usb, PCD_HandleTypeDef *hpcd);
33 void usb_start(struct usb *usb);
35 enum usb_device_state {
53 #define usb_debug debug_printf
55 static inline void usb_debug(char *msg, ...)
59 /*** Constants from USB specs ***/
61 #define USB_REQ_DIRECTION 0x80
64 USB_REQ_TYPE_STANDARD = 0x00,
65 USB_REQ_TYPE_CLASS = 0x20,
66 USB_REQ_TYPE_VENDOR = 0x40,
67 USB_REQ_TYPE_MASK = 0x60,
70 enum usb_req_recipient {
71 USB_REQ_RECIPIENT_DEVICE = 0x00,
72 USB_REQ_RECIPIENT_INTERFACE = 0x01,
73 USB_REQ_RECIPIENT_ENDPOINT = 0x02,
74 USB_REQ_RECIPIENT_MASK = 0x1f,
77 enum usb_req_standard {
78 USB_REQ_GET_STATUS = 0x00,
79 USB_REQ_CLEAR_FEATURE = 0x01,
80 USB_REQ_SET_FEATURE = 0x03,
81 USB_REQ_SET_ADDRESS = 0x05,
82 USB_REQ_GET_DESCRIPTOR = 0x06,
83 USB_REQ_SET_DESCRIPTOR = 0x07,
84 USB_REQ_GET_CONFIGURATION = 0x08,
85 USB_REQ_SET_CONFIGURATION = 0x09,
86 USB_REQ_GET_INTERFACE = 0x0A,
87 USB_REQ_SET_INTERFACE = 0x0B,
88 USB_REQ_SYNCH_FRAME = 0x0C,
92 USB_DESC_TYPE_DEVICE = 1,
93 USB_DESC_TYPE_CONFIGURATION = 2,
94 USB_DESC_TYPE_STRING = 3,
95 USB_DESC_TYPE_INTERFACE = 4,
96 USB_DESC_TYPE_ENDPOINT = 5,
97 USB_DESC_TYPE_DEVICE_QUALIFIER = 6,
98 USB_DESC_TYPE_OTHER_SPEED_CONFIGURATION = 7,
99 USB_DESC_TYPE_BOS = 0x0F,
102 enum usb_dev_status {
103 USB_DEV_STATUS_REMOTE_WAKEUP = 2,
104 USB_DEV_STATUS_SELF_POWERED = 1,
108 USB_FEATURE_EP_HALT = 0,
109 USB_FEATURE_REMOTE_WAKEUP = 1,
110 USB_FEATURE_TEST_MODE = 2,
113 #define USB_HS_MAX_PACKET_SIZE 512
114 #define USB_FS_MAX_PACKET_SIZE 64
115 #define USB_MAX_EP0_SIZE 64
118 USB_EP_TYPE_CTRL = 0,
119 USB_EP_TYPE_ISOC = 1,
120 USB_EP_TYPE_BULK = 2,
121 USB_EP_TYPE_INTR = 3,
124 /*** Wrappers around HAL routines ***/
126 // Wrappers return HAL_OK / HAL_ERROR / HAL_BUSY / HAL_TIMEOUT
128 static inline HAL_StatusTypeDef usb_ep_open(struct usb *usb, byte ep_addr, byte ep_type, byte ep_max_size)
130 return HAL_PCD_EP_Open(usb->hpcd, ep_addr, ep_max_size, ep_type);
133 static inline HAL_StatusTypeDef usb_ep_close(struct usb *usb, byte ep_addr)
135 return HAL_PCD_EP_Close(usb->hpcd, ep_addr);
138 static inline HAL_StatusTypeDef usb_ep_flush(struct usb *usb, byte ep_addr)
140 return HAL_PCD_EP_Flush(usb->hpcd, ep_addr);
143 static inline HAL_StatusTypeDef usb_ep_stall(struct usb *usb, byte ep_addr)
145 return HAL_PCD_EP_SetStall(usb->hpcd, ep_addr);
148 static inline HAL_StatusTypeDef usb_ep_unstall(struct usb *usb, byte ep_addr)
150 return HAL_PCD_EP_ClrStall(usb->hpcd, ep_addr);
153 static inline int usb_ep_is_stalled(struct usb *usb, byte ep_addr)
155 return ((ep_addr & 0x80) ? usb->hpcd->IN_ep : usb->hpcd->OUT_ep) [ep_addr & 0x7f].is_stall;
158 static inline HAL_StatusTypeDef usb_ep_transmit(struct usb *usb, byte ep_addr, const byte *buf, u32 size)
160 return HAL_PCD_EP_Transmit(usb->hpcd, ep_addr, (byte *) buf, size);
163 static inline HAL_StatusTypeDef usb_ep_receive(struct usb *usb, byte ep_addr, byte *buf, u32 size)
165 return HAL_PCD_EP_Receive(usb->hpcd, ep_addr, buf, size);
168 static inline u32 usb_ep_received_size(struct usb *usb, byte ep_addr)
170 return HAL_PCD_EP_GetRxCount(usb->hpcd, ep_addr);