master.h

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#ifndef __xwcd_ds_i2c_master_h__
#define __xwcd_ds_i2c_master_h__
 
#include <xwcd/ds/standard.h>
#include <xwos/osal/lock/mtx.h>
#include <xwcd/ds/device.h>
#include <xwcd/ds/i2c/common.h>
 
struct xwds_i2cm;
 
struct xwds_i2cm_driver {
        struct xwds_driver base; 
        xwer_t (* xfer)(struct xwds_i2cm * /*i2cm*/,
                        struct xwds_i2c_msg * /*msg*/,
                        xwtm_t /*to*/); 
        xwer_t (* abort)(struct xwds_i2cm * /*i2cm*/,
                         xwu16_t /*address*/, xwu16_t /*addrmode*/,
                         xwtm_t /*to*/); 
};
 
struct xwds_i2cm {
        struct xwds_device dev; 
        /* attributes */
        void * xwccfg; 
        /* private */
        struct {
                struct xwos_mtx apimtx; 
        } xfer; 
        struct {
                struct xwos_mtx apimtx; 
        } abort; 
};
 
void xwds_i2cm_construct(struct xwds_i2cm * i2cm);
 
void xwds_i2cm_destruct(struct xwds_i2cm * i2cm);
 
xwer_t xwds_i2cm_grab(struct xwds_i2cm * i2cm);
 
xwer_t xwds_i2cm_put(struct xwds_i2cm * i2cm);
 
xwer_t xwds_i2cm_xfer(struct xwds_i2cm * i2cm,
                      struct xwds_i2c_msg * msg,
                      xwtm_t to);
 
xwer_t xwds_i2cm_abort(struct xwds_i2cm * i2cm,
                       xwu16_t address, xwu16_t addrmode,
                       xwtm_t to);
 
#endif /* xwcd/ds/i2c/master.h */