c1ba580ae2
No longer assumes EP0 for control transfer, in general HCD code. Some additional cleanup.
60 lines
1.9 KiB
C
Executable file
60 lines
1.9 KiB
C
Executable file
/*
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* Interface of low level MUSB core logic (variant independent)
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*/
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#ifndef _MUSB_CORE_H_
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#define _MUSB_CORE_H_
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#include <usb/hcd_common.h>
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/*===========================================================================*
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* Types and constants *
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*===========================================================================*/
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/* Holds info on DATA toggle (DATA0/DATA1) initialization,
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* required by bulk transfers */
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typedef enum {
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MUSB_DATATOG_UNKNOWN = 0, /* Default with memset 0 */
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MUSB_DATATOG_INIT
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}
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musb_datatog;
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/* Structure to hold Mentor USB core configuration
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* May be more than one on a single chip
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* Should be initialized by MUSB's variant specific code (like AM335x) */
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typedef struct {
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void * regs; /* Points to beginning of memory mapped registers */
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hcd_reg1 ep; /* Currently used endpoint */
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hcd_reg1 addr; /* Currently used address */
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musb_datatog datatog_tx[HCD_TOTAL_EP];
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musb_datatog datatog_rx[HCD_TOTAL_EP];
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}
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musb_core_config;
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/*===========================================================================*
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* Function prototypes *
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*===========================================================================*/
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/* Only to be used outside generic HCD code */
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void musb_core_start(void *);
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void musb_core_stop(void *);
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/* For HCD interface */
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void musb_setup_device(void *, hcd_reg1, hcd_reg1);
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int musb_reset_device(void *, hcd_speed *);
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void musb_setup_stage(void *, hcd_ctrlrequest *);
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void musb_rx_stage(void *, hcd_datarequest *);
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void musb_tx_stage(void *, hcd_datarequest *);
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void musb_in_data_stage(void *);
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void musb_out_data_stage(void *);
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void musb_in_status_stage(void *);
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void musb_out_status_stage(void *);
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int musb_read_data(void *, hcd_reg1 *, hcd_reg1);
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int musb_check_error(void *, hcd_transfer, hcd_reg1, hcd_direction);
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#endif /* !_MUSB_CORE_H_ */
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