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Merge pull request #505 from brandonchuang/as5916_54xks

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[as5916-54xks] Support decimal point for PSU vout/iout/pout
This commit is contained in:
Jeffrey Townsend
2018-12-26 09:12:26 -08:00
committed by GitHub
parent 37846779fa 5323e685a0
commit 454f6a63dc
1 changed files with 67 additions and 21 deletions
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88
packages/platforms/accton/x86-64/x86-64-accton-as5916-54xks/modules/builds/x86-64-accton-as5916-54xks-psu.c
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@@ -38,6 +38,7 @@
#define IPMI_TIMEOUT (20 * HZ)
static void ipmi_msg_handler(struct ipmi_recv_msg *msg, void *user_msg_data);
static ssize_t show_linear(struct device *dev, struct device_attribute *attr, char *buf);
static ssize_t show_psu(struct device *dev, struct device_attribute *attr, char *buf);
static ssize_t show_string(struct device *dev, struct device_attribute *attr, char *buf);
static int as5916_54xks_psu_probe(struct platform_device *pdev);
@@ -151,9 +152,9 @@ enum as5916_54x_psu_sysfs_attrs {
#define DECLARE_PSU_SENSOR_DEVICE_ATTR(index) \
static SENSOR_DEVICE_ATTR(psu##index##_present, S_IRUGO, show_psu, NULL, PSU##index##_PRESENT); \
static SENSOR_DEVICE_ATTR(psu##index##_power_good, S_IRUGO, show_psu, NULL, PSU##index##_POWER_GOOD); \
static SENSOR_DEVICE_ATTR(psu##index##_vout, S_IRUGO, show_psu, NULL, PSU##index##_VOUT); \
static SENSOR_DEVICE_ATTR(psu##index##_iout, S_IRUGO, show_psu, NULL, PSU##index##_IOUT); \
static SENSOR_DEVICE_ATTR(psu##index##_pout, S_IRUGO, show_psu, NULL, PSU##index##_POUT); \
static SENSOR_DEVICE_ATTR(psu##index##_vout, S_IRUGO, show_linear, NULL, PSU##index##_VOUT); \
static SENSOR_DEVICE_ATTR(psu##index##_iout, S_IRUGO, show_linear, NULL, PSU##index##_IOUT); \
static SENSOR_DEVICE_ATTR(psu##index##_pout, S_IRUGO, show_linear, NULL, PSU##index##_POUT); \
static SENSOR_DEVICE_ATTR(psu##index##_model, S_IRUGO, show_string, NULL, PSU##index##_MODEL); \
static SENSOR_DEVICE_ATTR(psu##index##_serial, S_IRUGO, show_string, NULL, PSU##index##_SERIAL);\
static SENSOR_DEVICE_ATTR(psu##index##_temp1_input, S_IRUGO, show_psu, NULL, PSU##index##_TEMP_INPUT); \
@@ -353,10 +354,73 @@ exit:
#define VALIDATE_PRESENT_RETURN(id) \
{ \
if (data->ipmi_resp[id].status[PSU_PRESENT] != 0) { \
mutex_unlock(&data->update_lock); \
return -ENXIO; \
} \
}
static int two_complement_to_int(u16 data, u8 valid_bit, int mask)
{
u16 valid_data = data & mask;
bool is_negative = valid_data >> (valid_bit - 1);
return is_negative ? (-(((~valid_data) & mask) + 1)) : valid_data;
}
static ssize_t show_linear(struct device *dev, struct device_attribute *da, char *buf)
{
struct sensor_device_attribute *attr = to_sensor_dev_attr(da);
unsigned char pid = attr->index / NUM_OF_PER_PSU_ATTR;
u16 value = 0;
int error = 0;
int exponent = 0, mantissa = 0;
int multiplier = 1000;
mutex_lock(&data->update_lock);
data = as5916_54xks_psu_update_device(da);
if (!data->valid[pid]) {
error = -EIO;
goto exit;
}
switch (attr->index) {
case PSU1_VOUT:
case PSU2_VOUT:
VALIDATE_PRESENT_RETURN(pid);
value = ((u16)data->ipmi_resp[pid].status[PSU_VOUT0] |
(u16)data->ipmi_resp[pid].status[PSU_VOUT1] << 8);
break;
case PSU1_IOUT:
case PSU2_IOUT:
VALIDATE_PRESENT_RETURN(pid);
value = ((u16)data->ipmi_resp[pid].status[PSU_IOUT0] |
(u16)data->ipmi_resp[pid].status[PSU_IOUT1] << 8);
break;
case PSU1_POUT:
case PSU2_POUT:
VALIDATE_PRESENT_RETURN(pid);
value = ((u16)data->ipmi_resp[pid].status[PSU_POUT0] |
(u16)data->ipmi_resp[pid].status[PSU_POUT1] << 8);
break;
default:
error = -EINVAL;
goto exit;
}
mutex_unlock(&data->update_lock);
exponent = two_complement_to_int(value >> 11, 5, 0x1f);
mantissa = two_complement_to_int(value & 0x7ff, 11, 0x7ff);
return (exponent >= 0) ? sprintf(buf, "%d\n", (mantissa << exponent) * multiplier) :
sprintf(buf, "%d\n", (mantissa * multiplier) / (1 << -exponent));
exit:
mutex_unlock(&data->update_lock);
return error;
}
static ssize_t show_psu(struct device *dev, struct device_attribute *da, char *buf)
{
struct sensor_device_attribute *attr = to_sensor_dev_attr(da);
@@ -382,24 +446,6 @@ static ssize_t show_psu(struct device *dev, struct device_attribute *da, char *b
VALIDATE_PRESENT_RETURN(pid);
value = data->ipmi_resp[pid].status[PSU_POWER_GOOD_CPLD];
break;
case PSU1_VOUT:
case PSU2_VOUT:
VALIDATE_PRESENT_RETURN(pid);
value = ((u32)data->ipmi_resp[pid].status[PSU_VOUT0] |
(u32)data->ipmi_resp[pid].status[PSU_VOUT1] << 8) * 1000;
break;
case PSU1_IOUT:
case PSU2_IOUT:
VALIDATE_PRESENT_RETURN(pid);
value = ((u32)data->ipmi_resp[pid].status[PSU_IOUT0] |
(u32)data->ipmi_resp[pid].status[PSU_IOUT1] << 8) * 1000;
break;
case PSU1_POUT:
case PSU2_POUT:
VALIDATE_PRESENT_RETURN(pid);
value = ((u32)data->ipmi_resp[pid].status[PSU_POUT0] |
(u32)data->ipmi_resp[pid].status[PSU_POUT1] << 8) * 1000;
break;
case PSU1_TEMP_INPUT:
case PSU2_TEMP_INPUT:
VALIDATE_PRESENT_RETURN(pid);