chip.h

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#ifndef __xwcd_ds_iochip_chip_h__
#define __xwcd_ds_iochip_chip_h__
 
#include <xwcd/ds/standard.h>
#include <xwcd/ds/device.h>
#include <xwcd/ds/i2c/peripheral.h>
#include <xwcd/ds/spi/peripheral.h>
 
struct xwds_iochip;
 
typedef void * xwds_iochip_eirq_arg_t;
 
typedef void (* xwds_iochip_eirq_f)(struct xwds_iochip *,
                                    xwid_t,
                                    xwds_iochip_eirq_arg_t);
 
struct xwds_iochip_driver {
        struct xwds_driver base; 
        xwer_t (* gpio_req)(struct xwds_iochip * /*iochip*/,
                            xwid_t /*port*/,
                            xwsq_t /*pinmask*/,
                            xwtm_t /*to*/); 
        xwer_t (* gpio_rls)(struct xwds_iochip * /*iochip*/,
                            xwid_t /*port*/,
                            xwid_t /*pinmask*/,
                            xwtm_t /*to*/); 
        xwer_t (* gpio_cfg)(struct xwds_iochip * /*iochip*/,
                            xwid_t /*port*/,
                            xwsq_t /*pinmask*/,
                            void * /*cfg*/,
                            xwtm_t /*to*/); 
        xwer_t (* gpio_output)(struct xwds_iochip *,
                               xwid_t /*port*/,
                               xwsq_t /*pinmask*/,
                               xwsq_t /*out*/,
                               xwtm_t /*to*/); 
        xwer_t (* gpio_set)(struct xwds_iochip * /*iochip*/,
                            xwid_t /*port*/,
                            xwsq_t /*pinmask*/,
                            xwtm_t /*to*/); 
        xwer_t (* gpio_reset)(struct xwds_iochip * /*iochip*/,
                              xwid_t /*port*/,
                              xwsq_t /*pinmask*/,
                              xwtm_t /*to*/); 
        xwer_t (* gpio_toggle)(struct xwds_iochip * /*iochip*/,
                               xwid_t /*port*/,
                               xwsq_t /*pinmask*/,
                               xwtm_t /*to*/); 
        xwer_t (* gpio_input)(struct xwds_iochip * /*iochip*/,
                              xwid_t /*port*/,
                              xwsq_t /*pinmask*/,
                              xwsq_t * /*inbuf*/,
                              xwtm_t /*to*/); 
};
 
struct xwds_iochip {
        union {
                struct xwds_device dev; 
#if defined(XWCDCFG_ds_I2C_PERIPHERAL) && (1 == XWCDCFG_ds_I2C_PERIPHERAL)
                struct xwds_i2cp i2cp; 
#endif
#if defined(XWCDCFG_ds_SPI_PERIPHERAL) && (1 == XWCDCFG_ds_SPI_PERIPHERAL)
                struct xwds_spip spip; 
#endif
        } bc; 
        /* attributes */
        struct {
                void * cfg; 
                atomic_xwsq_t * pins; 
                xwsz_t port_num; 
                xwsz_t pin_num; 
        } gpio; 
};
 
void xwds_iochip_construct(struct xwds_iochip * iochip);
 
void xwds_iochip_destruct(struct xwds_iochip * iochip);
 
xwer_t xwds_iochip_grab(struct xwds_iochip * iochip);
 
xwer_t xwds_iochip_put(struct xwds_iochip * iochip);
 
#endif /* xwcd/ds/iochip/chip.h */