pnp_ops.h

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/* SPDX-License-Identifier: GPL-2.0-only */
 
#ifndef __DEVICE_PNP_OPS_H__
#define __DEVICE_PNP_OPS_H__
 
#include <stdint.h>
#include <device/pnp.h>
 
#if ENV_PNP_SIMPLE_DEVICE
 
static __always_inline void pnp_write_config(
        pnp_devfn_t dev, uint8_t reg, uint8_t value)
{
        pnp_write_index(dev >> 8, reg, value);
}
 
static __always_inline uint8_t pnp_read_config(
        pnp_devfn_t dev, uint8_t reg)
{
        return pnp_read_index(dev >> 8, reg);
}
 
static __always_inline void pnp_unset_and_set_config(
        pnp_devfn_t dev, uint8_t reg, uint8_t unset, uint8_t set)
{
        pnp_unset_and_set_index(dev >> 8, reg, unset, set);
}
 
static __always_inline
void pnp_set_logical_device(pnp_devfn_t dev)
{
        unsigned int device = dev & 0xff;
        pnp_write_config(dev, 0x07, device);
}
 
static __always_inline
void pnp_set_enable(pnp_devfn_t dev, int enable)
{
        pnp_write_config(dev, PNP_IDX_EN, enable?0x1:0x0);
}
 
static __always_inline
int pnp_read_enable(pnp_devfn_t dev)
{
        return !!pnp_read_config(dev, PNP_IDX_EN);
}
 
static __always_inline
void pnp_set_iobase(pnp_devfn_t dev, unsigned int index, unsigned int iobase)
{
        pnp_write_config(dev, index + 0, (iobase >> 8) & 0xff);
        pnp_write_config(dev, index + 1, iobase & 0xff);
}
 
static __always_inline
uint16_t pnp_read_iobase(pnp_devfn_t dev, unsigned int index)
{
        return ((uint16_t)(pnp_read_config(dev, index)) << 8)
                | pnp_read_config(dev, index + 1);
}
 
static __always_inline
void pnp_set_irq(pnp_devfn_t dev, unsigned int index, unsigned int irq)
{
        pnp_write_config(dev, index, irq);
}
 
static __always_inline
void pnp_set_drq(pnp_devfn_t dev, unsigned int index, unsigned int drq)
{
        pnp_write_config(dev, index, drq & 0xff);
}
 
#endif
 
#endif