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Added USB (specifically CDC-ACM) support

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This commit is contained in:
ksb 2007-09-01 10:00:35 +00:00
parent 3af69d229a
commit 9d5a2aed80
18 changed files with 2079 additions and 4 deletions
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118
cpu/at91sam7s/usb/usb-proto.h Normal file
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#ifndef __USB_PROTO_H__RVJQ2JAGM4__
#define __USB_PROTO_H__RVJQ2JAGM4__
#include <usb.h>
#include <usb-config.h>
#ifndef NULL
#define NULL 0
#endif
typedef struct _USBEndpoint USBEndpoint;
struct _USBEndpoint
{
unsigned char addr;
unsigned char buf_size_mask; /* mask for the buffer index. This implies
that the buffer size must be a power of
2 */
unsigned char buf_len;
unsigned char buf_pos;
unsigned char* buffer;
unsigned short status;
unsigned short flags;
};
#define USB_EP_FLAGS_BANK_1_RECV_NEXT 0x01 /* The next packet received
should be read from bank 1
if possible */
#define USB_EP_FLAGS_RECV_BLOCKED 0x02 /* Recetpion is blocked.
Interrupt turned off */
#define USB_EP_FLAGS_TRANSMITTING 0x04 /* Waiting for TXCOMP before sending
more data */
/* Read only */
struct USBRequestHandler
{
unsigned char request_type;
unsigned char request_type_mask;
unsigned char request;
unsigned char request_mask;
/* Returns true if it handled the request, if false let another handler try*/
unsigned int (*handler_func)();
};
/* Must be writeable */
struct USBRequestHandlerHook
{
struct USBRequestHandlerHook *next;
const struct USBRequestHandler * const handler;
};
void
usb_register_request_handler(struct USBRequestHandlerHook *hook);
void
usb_reset();
void
usb_ep0_int();
void
usb_epx_int();
void
usb_clear_events(unsigned events);
void
usb_clear_ep_events(unsigned int ep, unsigned int events);
void
usb_error_stall();
void
usb_send_ctrl_response(const unsigned char *buffer, unsigned short len);
void
usb_send_ctrl_status();
void
usb_set_address();
void
usb_set_configuration_value(unsigned char c);
unsigned char
usb_get_configuration_value();
void
usb_init_endpoints();
volatile USBEndpoint*
usb_find_endpoint(unsigned char epaddr);
void
usb_halt_endpoint(unsigned char ep_addr, unsigned int halt);
extern volatile unsigned char usb_events;
extern struct process *usb_handler_process;
extern struct USB_request_st usb_setup_buffer;
extern unsigned char usb_ctrl_data_buffer[];
extern unsigned short usb_ctrl_data_len;
#define USB_EVENT_EP(ep) (0x01<<(ep))
#define USB_EVENT_RESET 0x10
#define USB_EVENT_SUPEND 0x20
#define USB_EVENT_RESUME 0x40
#define USB_EVENT_CONFIG 0x08
extern volatile unsigned char usb_endpoint_events[];
#define USB_EP_EVENT_SETUP 0x01
#define USB_EP_EVENT_OUT 0x02
#define USB_EP_EVENT_IN 0x04
#endif /* __USB_PROTO_H__RVJQ2JAGM4__ */