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Diffstat (limited to 'roms/seabios/src/hw/usb.h')
| -rw-r--r-- | roms/seabios/src/hw/usb.h | 244 |
1 files changed, 244 insertions, 0 deletions
diff --git a/roms/seabios/src/hw/usb.h b/roms/seabios/src/hw/usb.h new file mode 100644 index 000000000..22173fb37 --- /dev/null +++ b/roms/seabios/src/hw/usb.h @@ -0,0 +1,244 @@ +// USB functions and data. +#ifndef __USB_H +#define __USB_H + +#include "stacks.h" // struct mutex_s + +// Information on a USB end point. +struct usb_pipe { + union { + struct usb_s *cntl; + struct usb_pipe *freenext; + }; + u8 type; + u8 ep; + u8 devaddr; + u8 speed; + u16 maxpacket; + u8 eptype; +}; + +// Common information for usb devices. +struct usbdevice_s { + struct usbhub_s *hub; + struct usb_pipe *defpipe; + u32 port; + struct usb_config_descriptor *config; + struct usb_interface_descriptor *iface; + int imax; + u8 speed; + u8 devaddr; +}; + +// Common information for usb controllers. +struct usb_s { + struct usb_pipe *freelist; + struct mutex_s resetlock; + struct pci_device *pci; + int busid; + u8 type; + u8 maxaddr; +}; + +// Information for enumerating USB hubs +struct usbhub_s { + struct usbhub_op_s *op; + struct usbdevice_s *usbdev; + struct usb_s *cntl; + struct mutex_s lock; + u32 powerwait; + u32 port; + u32 threads; + u32 portcount; + u32 devcount; +}; + +// Hub callback (32bit) info +struct usbhub_op_s { + int (*detect)(struct usbhub_s *hub, u32 port); + int (*reset)(struct usbhub_s *hub, u32 port); + void (*disconnect)(struct usbhub_s *hub, u32 port); +}; + +#define USB_TYPE_UHCI 1 +#define USB_TYPE_OHCI 2 +#define USB_TYPE_EHCI 3 +#define USB_TYPE_XHCI 4 + +#define USB_FULLSPEED 0 +#define USB_LOWSPEED 1 +#define USB_HIGHSPEED 2 +#define USB_SUPERSPEED 3 + +#define USB_MAXADDR 127 + + +/**************************************************************** + * usb structs and flags + ****************************************************************/ + +// USB mandated timings (in ms) +#define USB_TIME_SIGATT 100 +#define USB_TIME_ATTDB 100 +#define USB_TIME_DRST 10 +#define USB_TIME_DRSTR 50 +#define USB_TIME_RSTRCY 10 + +#define USB_TIME_SETADDR_RECOVERY 2 + +#define USB_PID_OUT 0xe1 +#define USB_PID_IN 0x69 +#define USB_PID_SETUP 0x2d + +#define USB_DIR_OUT 0 /* to device */ +#define USB_DIR_IN 0x80 /* to host */ + +#define USB_TYPE_MASK (0x03 << 5) +#define USB_TYPE_STANDARD (0x00 << 5) +#define USB_TYPE_CLASS (0x01 << 5) +#define USB_TYPE_VENDOR (0x02 << 5) +#define USB_TYPE_RESERVED (0x03 << 5) + +#define USB_RECIP_MASK 0x1f +#define USB_RECIP_DEVICE 0x00 +#define USB_RECIP_INTERFACE 0x01 +#define USB_RECIP_ENDPOINT 0x02 +#define USB_RECIP_OTHER 0x03 + +#define USB_REQ_GET_STATUS 0x00 +#define USB_REQ_CLEAR_FEATURE 0x01 +#define USB_REQ_SET_FEATURE 0x03 +#define USB_REQ_SET_ADDRESS 0x05 +#define USB_REQ_GET_DESCRIPTOR 0x06 +#define USB_REQ_SET_DESCRIPTOR 0x07 +#define USB_REQ_GET_CONFIGURATION 0x08 +#define USB_REQ_SET_CONFIGURATION 0x09 +#define USB_REQ_GET_INTERFACE 0x0A +#define USB_REQ_SET_INTERFACE 0x0B +#define USB_REQ_SYNCH_FRAME 0x0C + +struct usb_ctrlrequest { + u8 bRequestType; + u8 bRequest; + u16 wValue; + u16 wIndex; + u16 wLength; +} PACKED; + +#define USB_DT_DEVICE 0x01 +#define USB_DT_CONFIG 0x02 +#define USB_DT_STRING 0x03 +#define USB_DT_INTERFACE 0x04 +#define USB_DT_ENDPOINT 0x05 +#define USB_DT_DEVICE_QUALIFIER 0x06 +#define USB_DT_OTHER_SPEED_CONFIG 0x07 +#define USB_DT_ENDPOINT_COMPANION 0x30 + +struct usb_device_descriptor { + u8 bLength; + u8 bDescriptorType; + + u16 bcdUSB; + u8 bDeviceClass; + u8 bDeviceSubClass; + u8 bDeviceProtocol; + u8 bMaxPacketSize0; + u16 idVendor; + u16 idProduct; + u16 bcdDevice; + u8 iManufacturer; + u8 iProduct; + u8 iSerialNumber; + u8 bNumConfigurations; +} PACKED; + +#define USB_CLASS_PER_INTERFACE 0 /* for DeviceClass */ +#define USB_CLASS_AUDIO 1 +#define USB_CLASS_COMM 2 +#define USB_CLASS_HID 3 +#define USB_CLASS_PHYSICAL 5 +#define USB_CLASS_STILL_IMAGE 6 +#define USB_CLASS_PRINTER 7 +#define USB_CLASS_MASS_STORAGE 8 +#define USB_CLASS_HUB 9 + +struct usb_config_descriptor { + u8 bLength; + u8 bDescriptorType; + + u16 wTotalLength; + u8 bNumInterfaces; + u8 bConfigurationValue; + u8 iConfiguration; + u8 bmAttributes; + u8 bMaxPower; +} PACKED; + +struct usb_interface_descriptor { + u8 bLength; + u8 bDescriptorType; + + u8 bInterfaceNumber; + u8 bAlternateSetting; + u8 bNumEndpoints; + u8 bInterfaceClass; + u8 bInterfaceSubClass; + u8 bInterfaceProtocol; + u8 iInterface; +} PACKED; + +struct usb_endpoint_descriptor { + u8 bLength; + u8 bDescriptorType; + + u8 bEndpointAddress; + u8 bmAttributes; + u16 wMaxPacketSize; + u8 bInterval; +} PACKED; + +#define USB_ENDPOINT_NUMBER_MASK 0x0f /* in bEndpointAddress */ +#define USB_ENDPOINT_DIR_MASK 0x80 + +#define USB_ENDPOINT_XFERTYPE_MASK 0x03 /* in bmAttributes */ +#define USB_ENDPOINT_XFER_CONTROL 0 +#define USB_ENDPOINT_XFER_ISOC 1 +#define USB_ENDPOINT_XFER_BULK 2 +#define USB_ENDPOINT_XFER_INT 3 +#define USB_ENDPOINT_MAX_ADJUSTABLE 0x80 + + +/**************************************************************** + * usb mass storage flags + ****************************************************************/ + +#define US_SC_ATAPI_8020 0x02 +#define US_SC_ATAPI_8070 0x05 +#define US_SC_SCSI 0x06 + +#define US_PR_BULK 0x50 /* bulk-only transport */ +#define US_PR_UAS 0x62 /* usb attached scsi */ + +/**************************************************************** + * function defs + ****************************************************************/ + +// usb.c +struct usb_pipe *usb_alloc_pipe(struct usbdevice_s *usbdev + , struct usb_endpoint_descriptor *epdesc); +int usb_send_bulk(struct usb_pipe *pipe, int dir, void *data, int datasize); +int usb_poll_intr(struct usb_pipe *pipe, void *data); +int send_default_control(struct usb_pipe *pipe, const struct usb_ctrlrequest *req + , void *data); +void free_pipe(struct usb_pipe *pipe); +struct usb_pipe *usb_getFreePipe(struct usb_s *cntl, u8 eptype); +void usb_desc2pipe(struct usb_pipe *pipe, struct usbdevice_s *usbdev + , struct usb_endpoint_descriptor *epdesc); +int usb_getFrameExp(struct usbdevice_s *usbdev + , struct usb_endpoint_descriptor *epdesc); +struct usb_endpoint_descriptor *findEndPointDesc(struct usbdevice_s *usbdev + , int type, int dir); +void usb_enumerate(struct usbhub_s *hub); +void usb_setup(void); + +#endif // usb.h |