src/include/device/pnp_ops.h

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2
   3 #ifndef __DEVICE_PNP_OPS_H__
   4 #define __DEVICE_PNP_OPS_H__
   5
   6 #include <stdint.h>
   7 #include <device/pnp.h>
   8
   9 #if ENV_PNP_SIMPLE_DEVICE
  10
  11 static __always_inline void pnp_write_config(
  12         pnp_devfn_t dev, uint8_t reg, uint8_t value)
  13 {
  14         pnp_write_index(dev >> 8, reg, value);
  15 }
  16
  17 static __always_inline uint8_t pnp_read_config(
  18         pnp_devfn_t dev, uint8_t reg)
  19 {
  20         return pnp_read_index(dev >> 8, reg);
  21 }
  22
  23 static __always_inline void pnp_unset_and_set_config(
  24         pnp_devfn_t dev, uint8_t reg, uint8_t unset, uint8_t set)
  25 {
  26         pnp_unset_and_set_index(dev >> 8, reg, unset, set);
  27 }
  28
  29 static __always_inline
  30 void pnp_set_logical_device(pnp_devfn_t dev)
  31 {
  32         unsigned int device = dev & 0xff;
  33         pnp_write_config(dev, 0x07, device);
  34 }
  35
  36 static __always_inline
  37 void pnp_set_enable(pnp_devfn_t dev, int enable)
  38 {
  39         pnp_write_config(dev, PNP_IDX_EN, enable?0x1:0x0);
  40 }
  41
  42 static __always_inline
  43 int pnp_read_enable(pnp_devfn_t dev)
  44 {
  45         return !!pnp_read_config(dev, PNP_IDX_EN);
  46 }
  47
  48 static __always_inline
  49 void pnp_set_iobase(pnp_devfn_t dev, unsigned int index, unsigned int iobase)
  50 {
  51         pnp_write_config(dev, index + 0, (iobase >> 8) & 0xff);
  52         pnp_write_config(dev, index + 1, iobase & 0xff);
  53 }
  54
  55 static __always_inline
  56 uint16_t pnp_read_iobase(pnp_devfn_t dev, unsigned int index)
  57 {
  58         return ((uint16_t)(pnp_read_config(dev, index)) << 8)
  59                 | pnp_read_config(dev, index + 1);
  60 }
  61
  62 static __always_inline
  63 void pnp_set_irq(pnp_devfn_t dev, unsigned int index, unsigned int irq)
  64 {
  65         pnp_write_config(dev, index, irq);
  66 }
  67
  68 static __always_inline
  69 void pnp_set_drq(pnp_devfn_t dev, unsigned int index, unsigned int drq)
  70 {
  71         pnp_write_config(dev, index, drq & 0xff);
  72 }
  73
  74 #endif
  75
  76 #endif