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samsung-laptop: dump model and version informations

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We still need to figure out exactly what each of different fields
represent, but they contain at least model and version informations.

Signed-off-by: Corentin Chary <corentincj@iksaif.net>
Acked-by: Greg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
This commit is contained in:
Corentin Chary 2011-11-26 11:00:11 +01:00 committed by Matthew Garrett
parent 3be324a94d
commit 6f6ae06eb3
1 changed files with 42 additions and 0 deletions
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42
drivers/platform/x86/samsung-laptop.c
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@ -303,6 +303,7 @@ struct samsung_laptop_debug {
struct debugfs_blob_wrapper f0000_wrapper;
struct debugfs_blob_wrapper data_wrapper;
struct debugfs_blob_wrapper sdiag_wrapper;
};
struct samsung_laptop;
@ -337,6 +338,8 @@ struct samsung_laptop {
bool handle_backlight;
bool has_stepping_quirk;
char sdiag[64];
};
@ -1164,6 +1167,9 @@ static int samsung_debugfs_init(struct samsung_laptop *samsung)
samsung->debug.data_wrapper.data = &samsung->debug.data;
samsung->debug.data_wrapper.size = sizeof(samsung->debug.data);
samsung->debug.sdiag_wrapper.data = samsung->sdiag;
samsung->debug.sdiag_wrapper.size = strlen(samsung->sdiag);
dent = debugfs_create_u16("command", S_IRUGO | S_IWUSR,
samsung->debug.root, &samsung->debug.command);
if (!dent)
@ -1207,6 +1213,12 @@ static int samsung_debugfs_init(struct samsung_laptop *samsung)
if (!dent)
goto error_debugfs;
dent = debugfs_create_blob("sdiag", S_IRUGO | S_IWUSR,
samsung->debug.root,
&samsung->debug.sdiag_wrapper);
if (!dent)
goto error_debugfs;
return 0;
error_debugfs:
@ -1259,6 +1271,34 @@ static __init void samsung_sabi_infos(struct samsung_laptop *samsung, int loca,
printk(KERN_DEBUG " SABI pointer = 0x%08x\n", ifaceP);
}
static void __init samsung_sabi_diag(struct samsung_laptop *samsung)
{
int loca = find_signature(samsung->f0000_segment, "SDiaG@");
int i;
if (loca == 0xffff)
return ;
/* Example:
* Ident: @SDiaG@686XX-N90X3A/966-SEC-07HL-S90X3A
*
* Product name: 90X3A
* BIOS Version: 07HL
*/
loca += 1;
for (i = 0; loca < 0xffff && i < sizeof(samsung->sdiag) - 1; loca++) {
char temp = readb(samsung->f0000_segment + loca);
if (isalnum(temp) || temp == '/' || temp == '-')
samsung->sdiag[i++] = temp;
else
break ;
}
if (debug && samsung->sdiag[0])
pr_info("sdiag: %s", samsung->sdiag);
}
static int __init samsung_sabi_init(struct samsung_laptop *samsung)
{
const struct sabi_config *config = NULL;
@ -1276,6 +1316,8 @@ static int __init samsung_sabi_init(struct samsung_laptop *samsung)
goto exit;
}
samsung_sabi_diag(samsung);
/* Try to find one of the signatures in memory to find the header */
for (i = 0; sabi_configs[i].test_string != 0; ++i) {
samsung->config = &sabi_configs[i];