diff options
| author | Kyösti Mälkki <kyosti.malkki@gmail.com> | 2019-03-03 00:35:15 +0200 |
|---|---|---|
| committer | Kyösti Mälkki <kyosti.malkki@gmail.com> | 2019-03-04 15:59:23 +0000 |
| commit | 3ee8b750f49b7c82e8b8787ee306017746e8c12a (patch) | |
| tree | c2d5a9a2b35e561303e9a6088004e05a7b282421 /src/include/device/pnp_ops.h | |
| parent | 3855c01e0a9d9e9787652479576e882bcda9fde5 (diff) | |
arch/io.h: Separate MMIO and PNP ops
Change-Id: Ie32f1d43168c277be46cdbd7fbfa2445d9899689
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/c/31699
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Diffstat (limited to 'src/include/device/pnp_ops.h')
| -rw-r--r-- | src/include/device/pnp_ops.h | 68 |
1 files changed, 67 insertions, 1 deletions
diff --git a/src/include/device/pnp_ops.h b/src/include/device/pnp_ops.h index 370ede8bdd..9086fdf67c 100644 --- a/src/include/device/pnp_ops.h +++ b/src/include/device/pnp_ops.h @@ -15,7 +15,73 @@ #ifndef __DEVICE_PNP_OPS_H__ #define __DEVICE_PNP_OPS_H__ -/* FIXME: We only want the PNP ops. */ +#include <stdint.h> #include <arch/io.h> +#include <device/pnp_type.h> + +#ifdef __SIMPLE_DEVICE__ + +static __always_inline void pnp_write_config( + pnp_devfn_t dev, uint8_t reg, uint8_t value) +{ + unsigned int port = dev >> 8; + outb(reg, port); + outb(value, port + 1); +} + +static __always_inline uint8_t pnp_read_config( + pnp_devfn_t dev, uint8_t reg) +{ + unsigned int port = dev >> 8; + outb(reg, port); + return inb(port + 1); +} + +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, 0x30, enable?0x1:0x0); +} + +static __always_inline +int pnp_read_enable(pnp_devfn_t dev) +{ + return !!pnp_read_config(dev, 0x30); +} + +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 /* __SIMPLE_DEVICE__ */ #endif |