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Diffstat (limited to '')
| -rw-r--r-- | include/drivers/usb_device.h | 278 |
1 files changed, 278 insertions, 0 deletions
diff --git a/include/drivers/usb_device.h b/include/drivers/usb_device.h new file mode 100644 index 0000000..8fdb6ae --- /dev/null +++ b/include/drivers/usb_device.h @@ -0,0 +1,278 @@ +/* + * Copyright (c) 2021, STMicroelectronics - All Rights Reserved + * + * SPDX-License-Identifier: BSD-3-Clause + */ + +#ifndef USB_DEVICE_H +#define USB_DEVICE_H + +#include <stdint.h> + +#include <lib/utils_def.h> + +#define USBD_MAX_NUM_INTERFACES 1U +#define USBD_MAX_NUM_CONFIGURATION 1U + +#define USB_LEN_DEV_QUALIFIER_DESC 0x0AU +#define USB_LEN_DEV_DESC 0x12U +#define USB_LEN_CFG_DESC 0x09U +#define USB_LEN_IF_DESC 0x09U +#define USB_LEN_EP_DESC 0x07U +#define USB_LEN_OTG_DESC 0x03U +#define USB_LEN_LANGID_STR_DESC 0x04U +#define USB_LEN_OTHER_SPEED_DESC_SIZ 0x09U + +#define USBD_IDX_LANGID_STR 0x00U +#define USBD_IDX_MFC_STR 0x01U +#define USBD_IDX_PRODUCT_STR 0x02U +#define USBD_IDX_SERIAL_STR 0x03U +#define USBD_IDX_CONFIG_STR 0x04U +#define USBD_IDX_INTERFACE_STR 0x05U +#define USBD_IDX_USER0_STR 0x06U + +#define USB_REQ_TYPE_STANDARD 0x00U +#define USB_REQ_TYPE_CLASS 0x20U +#define USB_REQ_TYPE_VENDOR 0x40U +#define USB_REQ_TYPE_MASK 0x60U + +#define USB_REQ_RECIPIENT_DEVICE 0x00U +#define USB_REQ_RECIPIENT_INTERFACE 0x01U +#define USB_REQ_RECIPIENT_ENDPOINT 0x02U +#define USB_REQ_RECIPIENT_MASK 0x1FU + +#define USB_REQ_DIRECTION 0x80U + +#define USB_REQ_GET_STATUS 0x00U +#define USB_REQ_CLEAR_FEATURE 0x01U +#define USB_REQ_SET_FEATURE 0x03U +#define USB_REQ_SET_ADDRESS 0x05U +#define USB_REQ_GET_DESCRIPTOR 0x06U +#define USB_REQ_SET_DESCRIPTOR 0x07U +#define USB_REQ_GET_CONFIGURATION 0x08U +#define USB_REQ_SET_CONFIGURATION 0x09U +#define USB_REQ_GET_INTERFACE 0x0AU +#define USB_REQ_SET_INTERFACE 0x0BU +#define USB_REQ_SYNCH_FRAME 0x0CU + +#define USB_DESC_TYPE_DEVICE 0x01U +#define USB_DESC_TYPE_CONFIGURATION 0x02U +#define USB_DESC_TYPE_STRING 0x03U +#define USB_DESC_TYPE_INTERFACE 0x04U +#define USB_DESC_TYPE_ENDPOINT 0x05U +#define USB_DESC_TYPE_DEVICE_QUALIFIER 0x06U +#define USB_DESC_TYPE_OTHER_SPEED_CONFIGURATION 0x07U +#define USB_DESC_TYPE_BOS 0x0FU + +#define USB_CONFIG_REMOTE_WAKEUP 2U +#define USB_CONFIG_SELF_POWERED 1U + +#define USB_MAX_EP0_SIZE 64U + +/* Device Status */ +#define USBD_STATE_DEFAULT 1U +#define USBD_STATE_ADDRESSED 2U +#define USBD_STATE_CONFIGURED 3U +#define USBD_STATE_SUSPENDED 4U + +/* EP0 State */ +#define USBD_EP0_IDLE 0U +#define USBD_EP0_SETUP 1U +#define USBD_EP0_DATA_IN 2U +#define USBD_EP0_DATA_OUT 3U +#define USBD_EP0_STATUS_IN 4U +#define USBD_EP0_STATUS_OUT 5U +#define USBD_EP0_STALL 6U + +#define USBD_EP_TYPE_CTRL 0U +#define USBD_EP_TYPE_ISOC 1U +#define USBD_EP_TYPE_BULK 2U +#define USBD_EP_TYPE_INTR 3U + +#define USBD_OUT_EPNUM_MASK GENMASK(15, 0) +#define USBD_OUT_COUNT_MASK GENMASK(31, 16) +#define USBD_OUT_COUNT_SHIFT 16U + +/* Number of EP supported, allow to reduce footprint: default max = 15 */ +#ifndef CONFIG_USBD_EP_NB +#define USBD_EP_NB 15U +#else +#define USBD_EP_NB CONFIG_USBD_EP_NB +#endif + +#define LOBYTE(x) ((uint8_t)((x) & 0x00FF)) +#define HIBYTE(x) ((uint8_t)(((x) & 0xFF00) >> 8)) + +struct usb_setup_req { + uint8_t bm_request; + uint8_t b_request; + uint16_t value; + uint16_t index; + uint16_t length; +}; + +struct usb_handle; + +struct usb_class { + uint8_t (*init)(struct usb_handle *pdev, uint8_t cfgidx); + uint8_t (*de_init)(struct usb_handle *pdev, uint8_t cfgidx); + /* Control Endpoints */ + uint8_t (*setup)(struct usb_handle *pdev, struct usb_setup_req *req); + uint8_t (*ep0_tx_sent)(struct usb_handle *pdev); + uint8_t (*ep0_rx_ready)(struct usb_handle *pdev); + /* Class Specific Endpoints */ + uint8_t (*data_in)(struct usb_handle *pdev, uint8_t epnum); + uint8_t (*data_out)(struct usb_handle *pdev, uint8_t epnum); + uint8_t (*sof)(struct usb_handle *pdev); + uint8_t (*iso_in_incomplete)(struct usb_handle *pdev, uint8_t epnum); + uint8_t (*iso_out_incomplete)(struct usb_handle *pdev, uint8_t epnum); +}; + +/* Following USB Device status */ +enum usb_status { + USBD_OK = 0U, + USBD_BUSY, + USBD_FAIL, + USBD_TIMEOUT +}; + +/* Action to do after IT handling */ +enum usb_action { + USB_NOTHING = 0U, + USB_DATA_OUT, + USB_DATA_IN, + USB_SETUP, + USB_ENUM_DONE, + USB_READ_DATA_PACKET, + USB_READ_SETUP_PACKET, + USB_RESET, + USB_RESUME, + USB_SUSPEND, + USB_LPM, + USB_SOF, + USB_DISCONNECT, + USB_WRITE_EMPTY +}; + +/* USB Device descriptors structure */ +struct usb_desc { + uint8_t *(*get_device_desc)(uint16_t *length); + uint8_t *(*get_lang_id_desc)(uint16_t *length); + uint8_t *(*get_manufacturer_desc)(uint16_t *length); + uint8_t *(*get_product_desc)(uint16_t *length); + uint8_t *(*get_serial_desc)(uint16_t *length); + uint8_t *(*get_configuration_desc)(uint16_t *length); + uint8_t *(*get_interface_desc)(uint16_t *length); + uint8_t *(*get_usr_desc)(uint8_t index, uint16_t *length); + uint8_t *(*get_config_desc)(uint16_t *length); + uint8_t *(*get_device_qualifier_desc)(uint16_t *length); + /* optional: high speed capable device operating at its other speed */ + uint8_t *(*get_other_speed_config_desc)(uint16_t *length); +}; + +/* USB Device handle structure */ +struct usb_endpoint { + uint32_t status; + uint32_t total_length; + uint32_t rem_length; + uint32_t maxpacket; +}; + +/* + * EndPoint descriptor + * num : Endpoint number, between 0 and 15 (limited by USBD_EP_NB) + * is_in: Endpoint direction + * type : Endpoint type + * maxpacket: Endpoint Max packet size: between 0 and 64KB + * xfer_buff: Pointer to transfer buffer + * xfer_len: Current transfer lengt + * hxfer_count: Partial transfer length in case of multi packet transfer + */ +struct usbd_ep { + uint8_t num; + bool is_in; + uint8_t type; + uint32_t maxpacket; + uint8_t *xfer_buff; + uint32_t xfer_len; + uint32_t xfer_count; +}; + +enum pcd_lpm_state { + LPM_L0 = 0x00U, /* on */ + LPM_L1 = 0x01U, /* LPM L1 sleep */ + LPM_L2 = 0x02U, /* suspend */ + LPM_L3 = 0x03U, /* off */ +}; + +/* USB Device descriptors structure */ +struct usb_driver { + enum usb_status (*ep0_out_start)(void *handle); + enum usb_status (*ep_start_xfer)(void *handle, struct usbd_ep *ep); + enum usb_status (*ep0_start_xfer)(void *handle, struct usbd_ep *ep); + enum usb_status (*write_packet)(void *handle, uint8_t *src, + uint8_t ch_ep_num, uint16_t len); + void *(*read_packet)(void *handle, uint8_t *dest, uint16_t len); + enum usb_status (*ep_set_stall)(void *handle, struct usbd_ep *ep); + enum usb_status (*start_device)(void *handle); + enum usb_status (*stop_device)(void *handle); + enum usb_status (*set_address)(void *handle, uint8_t address); + enum usb_status (*write_empty_tx_fifo)(void *handle, + uint32_t epnum, uint32_t xfer_len, + uint32_t *xfer_count, + uint32_t maxpacket, + uint8_t **xfer_buff); + enum usb_action (*it_handler)(void *handle, uint32_t *param); +}; + +/* USB Peripheral Controller Drivers */ +struct pcd_handle { + void *instance; /* Register base address */ + struct usbd_ep in_ep[USBD_EP_NB]; /* IN endpoint parameters */ + struct usbd_ep out_ep[USBD_EP_NB]; /* OUT endpoint parameters */ + uint32_t setup[12]; /* Setup packet buffer */ + enum pcd_lpm_state lpm_state; /* LPM State */ +}; + +/* USB Device handle structure */ +struct usb_handle { + uint8_t id; + uint32_t dev_config; + uint32_t dev_config_status; + struct usb_endpoint ep_in[USBD_EP_NB]; + struct usb_endpoint ep_out[USBD_EP_NB]; + uint32_t ep0_state; + uint32_t ep0_data_len; + uint8_t dev_state; + uint8_t dev_old_state; + uint8_t dev_address; + uint32_t dev_remote_wakeup; + struct usb_setup_req request; + const struct usb_desc *desc; + struct usb_class *class; + void *class_data; + void *user_data; + struct pcd_handle *data; + const struct usb_driver *driver; +}; + +enum usb_status usb_core_handle_it(struct usb_handle *pdev); +enum usb_status usb_core_receive(struct usb_handle *pdev, uint8_t ep_addr, + uint8_t *p_buf, uint32_t len); +enum usb_status usb_core_transmit(struct usb_handle *pdev, uint8_t ep_addr, + uint8_t *p_buf, uint32_t len); +enum usb_status usb_core_receive_ep0(struct usb_handle *pdev, uint8_t *p_buf, + uint32_t len); +enum usb_status usb_core_transmit_ep0(struct usb_handle *pdev, uint8_t *p_buf, + uint32_t len); +void usb_core_ctl_error(struct usb_handle *pdev); +enum usb_status usb_core_start(struct usb_handle *pdev); +enum usb_status usb_core_stop(struct usb_handle *pdev); +enum usb_status register_usb_driver(struct usb_handle *pdev, + struct pcd_handle *pcd_handle, + const struct usb_driver *driver, + void *driver_handle); +enum usb_status register_platform(struct usb_handle *pdev, + const struct usb_desc *plat_call_back); + +#endif /* USB_DEVICE_H */ |