/**
* pdcs_diagnostic_read - Stable Storage Diagnostic register output.
* @buf: The output buffer to write to.
*
* I have NFC how to interpret the content of that register ;-).
*/
static ssize_t pdcs_diagnostic_read(struct kobject *kobj,
struct kobj_attribute *attr, char *buf)
{
char *out = buf;
u32 result;
if (!buf)
return -EINVAL;
/* get diagnostic */
if (pdc_stable_read(PDCS_ADDR_DIAG, &result, sizeof(result)) != PDC_OK)
return -EIO;
out += sprintf(out, "0x%.4x\n", (result >> 16));
return out - buf;
}
/**
* pdcs_osdep1_read - Stable Storage OS-Dependent data area 1 output.
* @buf: The output buffer to write to.
*
* This can hold 16 bytes of OS-Dependent data.
*/
static ssize_t pdcs_osdep1_read(struct kobject *kobj,
struct kobj_attribute *attr, char *buf)
{
char *out = buf;
u32 result[4];
if (!buf)
return -EINVAL;
if (pdc_stable_read(PDCS_ADDR_OSD1, &result, sizeof(result)) != PDC_OK)
return -EIO;
out += sprintf(out, "0x%.8x\n", result[0]);
out += sprintf(out, "0x%.8x\n", result[1]);
out += sprintf(out, "0x%.8x\n", result[2]);
out += sprintf(out, "0x%.8x\n", result[3]);
return out - buf;
}
/**
* pdcs_fastsize_read - Stable Storage FastSize register output.
* @buf: The output buffer to write to.
*
* This register holds the amount of system RAM to be tested during boot sequence.
*/
static ssize_t pdcs_fastsize_read(struct kobject *kobj,
struct kobj_attribute *attr, char *buf)
{
char *out = buf;
u32 result;
if (!buf)
return -EINVAL;
/* get fast-size */
if (pdc_stable_read(PDCS_ADDR_FSIZ, &result, sizeof(result)) != PDC_OK)
return -EIO;
if ((result & 0x0F) < 0x0E)
out += sprintf(out, "%d kB", (1<<(result & 0x0F))*256);
else
out += sprintf(out, "All");
out += sprintf(out, "\n");
return out - buf;
}
/**
* pdcs_fastsize_read - Stable Storage FastSize register output.
* @entry: An allocated and populated subsytem struct. We don't use it tho.
* @buf: The output buffer to write to.
*
* This register holds the amount of system RAM to be tested during boot sequence.
*/
static ssize_t
pdcs_fastsize_read(struct subsystem *entry, char *buf)
{
char *out = buf;
__u32 result;
if (!entry || !buf)
return -EINVAL;
/* get fast-size */
if (pdc_stable_read(PDCS_ADDR_FSIZ, &result, sizeof(result)) != PDC_OK)
return -EIO;
if ((result & 0x0F) < 0x0E)
out += sprintf(out, "%d kB", (1<<(result & 0x0F))*256);
else
out += sprintf(out, "All");
out += sprintf(out, "\n");
return out - buf;
}
