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#ifndef _UHCI_H
#define _UHCI_H
/*
* The link pointer is multi use. Some fields are valid only for some uses.
* In other cases, they must be 0
*
*/
#define MAX_POLLDEV 10
#define MAX_TRANSACTIONS 10
#define MAX_QUEUEHEAD 255
#define MAX_TD 1024
typedef struct link_pointer {
unsigned long terminate:1;
unsigned long queue:1;
unsigned long depth:1;
unsigned long reserved:1;
unsigned long link:28;
} __attribute__((packed)) link_pointer_t;
extern link_pointer_t *frame_list[];
void init_framelist(uchar dev);
#define SETUP_TOKEN 0x2d
#define IN_TOKEN 0x69
#define OUT_TOKEN 0xe1
#define CTRL_RETRIES 3
#define CONTROL_STS_RETRIES 0
// some port features
#define PORT_CONNECTION 0
#define PORT_ENABLE 1
#define PORT_SUSPEND 2
#define PORT_OVER_CURRENT 3
#define PORT_RESET 4
#define PORT_POWER 8
#define PORT_LOW_SPEED 9
#define C_PORT_CONNECTION 16
#define C_PORT_ENABLE 17
#define C_PORT_SUSPEND 18
#define C_PORT_OVER_CURRENT 19
#define C_PORT_RESET 20
// features
#define FEATURE_HALT 0
typedef struct td {
link_pointer_t link;
unsigned long actual:11; // actual length
unsigned long reserved2:5;
// status/error flags
unsigned long res1:1;
unsigned long bitstuff:1;
unsigned long crc:1;
unsigned long nak:1;
unsigned long babble:1;
unsigned long buffer_error:1;
unsigned long stall:1;
unsigned long active:1;
unsigned long interrupt:1; // interrupt on complete
unsigned long isochronous:1;
unsigned long lowspeed:1;
unsigned long retrys:2;
unsigned long detect_short:1;
unsigned long reserved3:2;
unsigned long packet_type:8; // one of in (0x69), out (0xe1) or setup (0x2d)
unsigned long device_addr:7;
unsigned long endpoint:4;
unsigned long data_toggle:1;
unsigned long reserved:1;
unsigned long max_transfer:11; // misnamed. Desired length might be better
void *buffer;
unsigned long data[4]; // free use by driver
} __attribute__((packed)) td_t;
typedef struct queue_head {
link_pointer_t bredth; // depth must = 0
link_pointer_t depth; // depth may vary randomly, ignore
unsigned long int udata[2];
} __attribute__((packed)) queue_head_t;
typedef struct transaction {
queue_head_t *qh;
td_t *td_list;
struct transaction *next;
} transaction_t;
//#####################################################
int wait_head( queue_head_t *head, int count);
extern queue_head_t *free_qh;
extern queue_head_t *queue_heads;
queue_head_t *new_queue_head(void);
void free_queue_head( queue_head_t *qh);
void init_qh(void);
extern td_t *free_td_list;
extern td_t *tds;
void init_td(void);
td_t *new_td(void);
td_t *find_last_td(td_t *td);
void free_td( td_t *td);
link_pointer_t *queue_end( queue_head_t *queue);
void add_td( queue_head_t *head, td_t *td);
extern transaction_t transactions[MAX_TRANSACTIONS];
extern transaction_t *free_transactions;
void init_transactions(void);
void free_transaction( transaction_t *trans );
transaction_t *new_transaction(td_t *td);
transaction_t *add_transaction( transaction_t *trans, td_t *td);
#define USBCMD(x) hc_base[x]
#define USBSTS(x) (hc_base[x] + 0x02)
#define USBINTR(x) (hc_base[x] + 0x04)
#define FRNUM(x) ( hc_base[x] + 0x06)
#define FLBASE(x) ( hc_base[x] + 0x08)
#define SOFMOD(x) ( hc_base[x] + 0x0c)
#define PORTSC1(x) ( hc_base[x] + 0x10)
#define PORTSC2(x) ( hc_base[x] + 0x12)
#define USBCMDRUN 0x01
#define USBCMD_DEBUG 0x20
#define USBSTSHALTED 0x20
void hc_reset(uchar dev);
int hc_stop(void);
int hc_start(uchar dev);
extern queue_head_t *sched_queue[];
void init_sched(uchar dev);
int poll_queue_head( queue_head_t *qh);
int wait_queue_complete( queue_head_t *qh);
extern int num_polls;
extern int (*devpoll[MAX_POLLDEV])(uchar);
extern uchar parm[MAX_POLLDEV];
transaction_t *_bulk_transfer( uchar devnum, uchar ep, unsigned int len, uchar *data);
transaction_t *ctrl_msg(uchar devnum, uchar request_type, uchar request, unsigned short wValue, unsigned short wIndex, unsigned short wLength, uchar *data);
int schedule_transaction( uchar dev, transaction_t *trans);
int wait_transaction( transaction_t *trans);
void unlink_transaction( uchar dev, transaction_t *trans);
int uhci_bulk_transfer( uchar devnum, uchar ep, unsigned int len, uchar *data);
int uhci_control_msg( uchar devnum, uchar request_type, uchar request, unsigned short wValue, unsigned short wIndex, unsigned short wLength, void *data);
// defined in uhci.c
int uhc_init(struct pci_device *dev);
void uhci_init(void);
void clear_uport_stat(unsigned short port);
int poll_u_root_hub(unsigned short port, uchar controller);
#endif
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