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superio/common/conf_mode: Add op to write SSDT

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Add functions to write ACPI SSDT code for entering and leaving
the config mode.
To be used by ACPI generators.

Tested on Linux 5.2 using the Aspeed SSDT generator.

Change-Id: I14b55b885f1c384536bafafed39ad399639868e4
Signed-off-by: Patrick Rudolph <patrick.rudolph@9elements.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/37639
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
This commit is contained in:
Patrick Rudolph
2019-12-10 13:15:42 +01:00
committed by Felix Held
parent 0142d441c6
commit 7db16ddc88
3 changed files with 171 additions and 1 deletions
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136
src/superio/common/conf_mode.c
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@@ -17,6 +17,7 @@
#include <arch/io.h>
#include <device/device.h>
#include <superio/conf_mode.h>
#include <arch/acpigen.h>
/* Common enter/exit implementations */
@@ -77,38 +78,173 @@ void pnp_exit_conf_mode_0202(struct device *dev)
pnp_write_config(dev, 0x02, (1 << 1));
}
/* Functions for ACPI */
#if CONFIG(HAVE_ACPI_TABLES)
static void pnp_ssdt_enter_conf_mode_55(struct device *dev, const char *idx, const char *data)
{
acpigen_write_store();
acpigen_write_byte(0x55);
acpigen_emit_namestring(idx);
}
static void pnp_ssdt_enter_conf_mode_6767(struct device *dev, const char *idx, const char *data)
{
acpigen_write_store();
acpigen_write_byte(0x67);
acpigen_emit_namestring(idx);
acpigen_write_store();
acpigen_write_byte(0x67);
acpigen_emit_namestring(idx);
}
static void pnp_ssdt_enter_conf_mode_7777(struct device *dev, const char *idx, const char *data)
{
acpigen_write_store();
acpigen_write_byte(0x77);
acpigen_emit_namestring(idx);
acpigen_write_store();
acpigen_write_byte(0x77);
acpigen_emit_namestring(idx);
}
static void pnp_ssdt_enter_conf_mode_8787(struct device *dev, const char *idx, const char *data)
{
acpigen_write_store();
acpigen_write_byte(0x87);
acpigen_emit_namestring(idx);
acpigen_write_store();
acpigen_write_byte(0x87);
acpigen_emit_namestring(idx);
}
static void pnp_ssdt_enter_conf_mode_a0a0(struct device *dev, const char *idx, const char *data)
{
acpigen_write_store();
acpigen_write_byte(0xa0);
acpigen_emit_namestring(idx);
acpigen_write_store();
acpigen_write_byte(0xa0);
acpigen_emit_namestring(idx);
}
static void pnp_ssdt_enter_conf_mode_a5a5(struct device *dev, const char *idx, const char *data)
{
acpigen_write_store();
acpigen_write_byte(0xa5);
acpigen_emit_namestring(idx);
acpigen_write_store();
acpigen_write_byte(0xa5);
acpigen_emit_namestring(idx);
}
static void pnp_ssdt_enter_conf_mode_870155aa(struct device *dev,
const char *idx, const char *data)
{
acpigen_write_store();
acpigen_write_byte(0x87);
acpigen_emit_namestring(idx);
acpigen_write_store();
acpigen_write_byte(0x01);
acpigen_emit_namestring(idx);
acpigen_write_store();
acpigen_write_byte(0x55);
acpigen_emit_namestring(idx);
acpigen_write_store();
if (dev->path.pnp.port == 0x4e)
acpigen_write_byte(0xaa);
else
acpigen_write_byte(0x55);
acpigen_emit_namestring(idx);
}
static void pnp_ssdt_exit_conf_mode_aa(struct device *dev, const char *idx, const char *data)
{
acpigen_write_store();
acpigen_write_byte(0xaa);
acpigen_emit_namestring(idx);
}
static void pnp_ssdt_exit_conf_mode_0202(struct device *dev, const char *idx, const char *data)
{
acpigen_write_store();
acpigen_write_byte(0x02);
acpigen_emit_namestring(idx);
acpigen_write_store();
acpigen_write_byte(0x02);
acpigen_emit_namestring(data);
}
#endif
const struct pnp_mode_ops pnp_conf_mode_55_aa = {
.enter_conf_mode = pnp_enter_conf_mode_55,
.exit_conf_mode = pnp_exit_conf_mode_aa,
#if CONFIG(HAVE_ACPI_TABLES)
.ssdt_enter_conf_mode = pnp_ssdt_enter_conf_mode_55,
.ssdt_exit_conf_mode = pnp_ssdt_exit_conf_mode_aa,
#endif
};
const struct pnp_mode_ops pnp_conf_mode_6767_aa = {
.enter_conf_mode = pnp_enter_conf_mode_6767,
.exit_conf_mode = pnp_exit_conf_mode_aa,
#if CONFIG(HAVE_ACPI_TABLES)
.ssdt_enter_conf_mode = pnp_ssdt_enter_conf_mode_6767,
.ssdt_exit_conf_mode = pnp_ssdt_exit_conf_mode_aa,
#endif
};
const struct pnp_mode_ops pnp_conf_mode_7777_aa = {
.enter_conf_mode = pnp_enter_conf_mode_7777,
.exit_conf_mode = pnp_exit_conf_mode_aa,
#if CONFIG(HAVE_ACPI_TABLES)
.ssdt_enter_conf_mode = pnp_ssdt_enter_conf_mode_7777,
.ssdt_exit_conf_mode = pnp_ssdt_exit_conf_mode_aa,
#endif
};
const struct pnp_mode_ops pnp_conf_mode_8787_aa = {
.enter_conf_mode = pnp_enter_conf_mode_8787,
.exit_conf_mode = pnp_exit_conf_mode_aa,
#if CONFIG(HAVE_ACPI_TABLES)
.ssdt_enter_conf_mode = pnp_ssdt_enter_conf_mode_8787,
.ssdt_exit_conf_mode = pnp_ssdt_exit_conf_mode_aa,
#endif
};
const struct pnp_mode_ops pnp_conf_mode_a0a0_aa = {
.enter_conf_mode = pnp_enter_conf_mode_a0a0,
.exit_conf_mode = pnp_exit_conf_mode_aa,
#if CONFIG(HAVE_ACPI_TABLES)
.ssdt_enter_conf_mode = pnp_ssdt_enter_conf_mode_a0a0,
.ssdt_exit_conf_mode = pnp_ssdt_exit_conf_mode_aa,
#endif
};
const struct pnp_mode_ops pnp_conf_mode_a5a5_aa = {
.enter_conf_mode = pnp_enter_conf_mode_a5a5,
.exit_conf_mode = pnp_exit_conf_mode_aa,
#if CONFIG(HAVE_ACPI_TABLES)
.ssdt_enter_conf_mode = pnp_ssdt_enter_conf_mode_a5a5,
.ssdt_exit_conf_mode = pnp_ssdt_exit_conf_mode_aa,
#endif
};
const struct pnp_mode_ops pnp_conf_mode_870155_aa = {
.enter_conf_mode = pnp_enter_conf_mode_870155aa,
.exit_conf_mode = pnp_exit_conf_mode_0202,
#if CONFIG(HAVE_ACPI_TABLES)
.ssdt_enter_conf_mode = pnp_ssdt_enter_conf_mode_870155aa,
.ssdt_exit_conf_mode = pnp_ssdt_exit_conf_mode_0202,
#endif
};