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| author | Gerd Hoffmann <kraxel@redhat.com> | 2020-09-24 11:34:23 +0200 |
|---|---|---|
| committer | Gerd Hoffmann <kraxel@redhat.com> | 2020-10-15 11:21:43 +0200 |
| commit | 5c8150220cfbac9a1a3a5ec97be12a011d1b6d6d (patch) | |
| tree | 94c54d5ad3ce99c14c16c6fa040716d4dcca112b | |
| parent | 65f7877216b5dbba657560bc51c1870a97b29e97 (diff) | |
| download | seabios-5c8150220cfbac9a1a3a5ec97be12a011d1b6d6d.tar.gz | |
dsdt: add (numeric) _UID support
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
| -rw-r--r-- | src/fw/dsdt_parser.c | 18 | ||||
| -rw-r--r-- | src/util.h | 1 |
2 files changed, 19 insertions, 0 deletions
diff --git a/src/fw/dsdt_parser.c b/src/fw/dsdt_parser.c index fee3c090..f6413c66 100644 --- a/src/fw/dsdt_parser.c +++ b/src/fw/dsdt_parser.c @@ -21,6 +21,7 @@ struct acpi_device { struct acpi_device *parent; char name[16]; u8 *hid_aml; + u8 *uid_aml; u8 *sta_aml; u8 *crs_data; int crs_size; @@ -428,6 +429,8 @@ static int parse_termobj(struct parse_state *s, s->dev->hid_aml = ptr; if (s->dev && strcmp(s->name, "_STA") == 0) s->dev->sta_aml = ptr; + if (s->dev && strcmp(s->name, "_UID") == 0) + s->dev->uid_aml = ptr; break; case 0x0a: /* byte prefix */ offset++; @@ -599,6 +602,19 @@ char *acpi_dsdt_name(struct acpi_device *dev) return dev->name; } +u64 acpi_dsdt_uid(struct acpi_device *dev) +{ + int error = 0; + u64 value = 0; + + if (!CONFIG_ACPI_PARSE || !dev || !dev->uid_aml) + return 0; + parse_termarg_int(dev->uid_aml + 5, &error, &value); + if (error) + return 0; + return value; +} + int acpi_dsdt_find_io(struct acpi_device *dev, u64 *min, u64 *max) { if (!CONFIG_ACPI_PARSE || !dev || !dev->crs_data) @@ -671,6 +687,8 @@ void acpi_dsdt_parse(void) dprintf(1, " %s", acpi_dsdt_name(dev)); if (dev->hid_aml) dprintf(1, ", hid"); + if (dev->uid_aml) + dprintf(1, ", uid %lld", acpi_dsdt_uid(dev)); if (dev->sta_aml) dprintf(1, ", sta (0x%x)", dev->sta_aml[0]); if (dev->crs_data) @@ -100,6 +100,7 @@ void acpi_dsdt_parse(void); struct acpi_device *acpi_dsdt_find_string(struct acpi_device *prev, const char *hid); struct acpi_device *acpi_dsdt_find_eisaid(struct acpi_device *prev, u16 eisaid); char *acpi_dsdt_name(struct acpi_device *dev); +u64 acpi_dsdt_uid(struct acpi_device *dev); int acpi_dsdt_present_eisaid(u16 eisaid); int acpi_dsdt_find_io(struct acpi_device *dev, u64 *min, u64 *max); int acpi_dsdt_find_mem(struct acpi_device *dev, u64 *min, u64 *max); |