Add DMI info for i830 quirks

Linux kernel has CONFIG_DMIID to export dmi info
through sysfs.

1 files changed, 130 insertions, 0 deletions

diff --git a/src/i830_quirks.c b/src/i830_quirks.c
index 853a33e7..59c30f3f 100644
--- a/src/i830_quirks.c
+++ b/src/i830_quirks.c
@@ -32,6 +32,9 @@
 
 #define SUBSYS_ANY (~0)
 
+#define DMIID_DIR "/sys/class/dmi/id/"
+#define DMIID_FILE(x) (DMIID_DIR # x)
+
 typedef struct {
     int chipType;
     int subsysVendor;
@@ -39,6 +42,122 @@ typedef struct {
     void (*hook)(I830Ptr);
 } i830_quirk, *i830_quirk_ptr;
 
+enum i830_dmi_data_t {
+    bios_vendor,
+    bios_version,
+    bios_date,
+    sys_vendor,
+    product_name,
+    product_version,
+    product_serial,
+    product_uuid,
+    board_vendor,
+    board_name,
+    board_version,
+    board_serial,
+    board_asset_tag,
+    chassis_vendor,
+    chassis_type,
+    chassis_version,
+    chassis_serial,
+    chassis_asset_tag,
+    dmi_data_max,
+};
+
+static char *i830_dmi_data[dmi_data_max];
+
+#define I830_DMI_FIELD_FUNC(field) \
+static void i830_dmi_store_##field(void) \
+{\
+    FILE *f = NULL;\
+    f = fopen(DMIID_FILE(field), "r");\
+    if (f == NULL) { i830_dmi_data[field] = NULL; return;}\
+    fread(i830_dmi_data[field], 64, 1, f);\
+    fclose(f);\
+}
+
+I830_DMI_FIELD_FUNC(bios_vendor);
+I830_DMI_FIELD_FUNC(bios_version);
+I830_DMI_FIELD_FUNC(bios_date);
+I830_DMI_FIELD_FUNC(sys_vendor);
+I830_DMI_FIELD_FUNC(product_name);
+I830_DMI_FIELD_FUNC(product_version);
+I830_DMI_FIELD_FUNC(product_serial);
+I830_DMI_FIELD_FUNC(product_uuid);
+I830_DMI_FIELD_FUNC(board_vendor);
+I830_DMI_FIELD_FUNC(board_name);
+I830_DMI_FIELD_FUNC(board_version);
+I830_DMI_FIELD_FUNC(board_serial);
+I830_DMI_FIELD_FUNC(board_asset_tag);
+I830_DMI_FIELD_FUNC(chassis_vendor);
+I830_DMI_FIELD_FUNC(chassis_type);
+I830_DMI_FIELD_FUNC(chassis_version);
+I830_DMI_FIELD_FUNC(chassis_serial);
+I830_DMI_FIELD_FUNC(chassis_asset_tag);
+
+static int i830_dmi_scan(void)
+{
+    int i;
+
+    for (i = 0; i < dmi_data_max; i++) {
+	i830_dmi_data[i] = xcalloc(64, sizeof(char));
+	if (!i830_dmi_data[i]) {
+	    int j;
+	    for (j = 0; j < i; j++)
+		xfree(i830_dmi_data[j]);
+	    return -1;
+	}
+    }
+
+    i830_dmi_store_bios_vendor();
+    i830_dmi_store_bios_version();
+    i830_dmi_store_bios_date();
+    i830_dmi_store_sys_vendor();
+    i830_dmi_store_product_name();
+    i830_dmi_store_product_version();
+    i830_dmi_store_product_serial();
+    i830_dmi_store_product_uuid();
+    i830_dmi_store_board_vendor();
+    i830_dmi_store_board_name();
+    i830_dmi_store_board_version();
+    i830_dmi_store_board_serial();
+    i830_dmi_store_board_asset_tag();
+    i830_dmi_store_chassis_vendor();
+    i830_dmi_store_chassis_type();
+    i830_dmi_store_chassis_version();
+    i830_dmi_store_chassis_serial();
+    i830_dmi_store_chassis_asset_tag();
+
+    return 0;
+}
+
+#define DMIID_DUMP(field) \
+    ErrorF("\t" # field ": %s", i830_dmi_data[field] ?\
+	    i830_dmi_data[field] : "unknown")
+
+static void i830_dmi_dump(void)
+{
+    ErrorF("i830_dmi_dump:\n");
+    DMIID_DUMP(bios_vendor);
+    DMIID_DUMP(bios_version);
+    DMIID_DUMP(bios_date);
+    DMIID_DUMP(sys_vendor);
+    DMIID_DUMP(product_name);
+    DMIID_DUMP(product_version);
+    DMIID_DUMP(product_serial);
+    DMIID_DUMP(product_uuid);
+    DMIID_DUMP(board_vendor);
+    DMIID_DUMP(board_name);
+    DMIID_DUMP(board_version);
+    DMIID_DUMP(board_serial);
+    DMIID_DUMP(board_asset_tag);
+    DMIID_DUMP(chassis_vendor);
+    DMIID_DUMP(chassis_type);
+    DMIID_DUMP(chassis_version);
+    DMIID_DUMP(chassis_serial);
+    DMIID_DUMP(chassis_asset_tag);
+}
+
 static void quirk_pipea_force (I830Ptr pI830)
 {
     pI830->quirk_flag |= QUIRK_PIPEA_FORCE;
@@ -107,6 +226,12 @@ void i830_fixup_devices(ScrnInfoPtr scrn)
 {
     I830Ptr pI830 = I830PTR(scrn);
     i830_quirk_ptr p = i830_quirk_list;
+    int i, ret;
+
+    ret = i830_dmi_scan();
+
+    if (0)
+	i830_dmi_dump();
 
     while (p && p->chipType != 0) {
 	if (DEVICE_ID(pI830->PciInfo) == p->chipType &&
@@ -116,4 +241,9 @@ void i830_fixup_devices(ScrnInfoPtr scrn)
 	    p->hook(pI830);
 	++p;
     }
+
+    if (!ret) {
+	for (i = 0; i < dmi_data_max; i++)
+	    xfree(i830_dmi_data[i]);
+    }
 }