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| author | Darrick J. Wong <djwong@us.ibm.com> | 2008-08-15 00:40:36 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2008-08-15 08:35:43 -0700 |
| commit | 963d96b53e1f4ebf4db0b8b7ba71ff7b438fbee0 (patch) | |
| tree | a5b1f190e82331528efa8f8df79a82905b89e790 /drivers/hwmon/i5k_amb.c | |
| parent | d42139a3fbd9793cf3747287e8f5c1ae06e06942 (diff) | |
| download | blackbird-op-linux-963d96b53e1f4ebf4db0b8b7ba71ff7b438fbee0.tar.gz blackbird-op-linux-963d96b53e1f4ebf4db0b8b7ba71ff7b438fbee0.zip | |
i5k_amb: provide labels for temperature sensors
Export the sensor -> channel/dimm mapping in tempX_label.
Signed-off-by: Darrick J. Wong <djwong@us.ibm.com>
Cc: "Mark M. Hoffman" <mhoffman@lightlink.com>
Cc: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/hwmon/i5k_amb.c')
| -rw-r--r-- | drivers/hwmon/i5k_amb.c | 28 |
1 files changed, 27 insertions, 1 deletions
diff --git a/drivers/hwmon/i5k_amb.c b/drivers/hwmon/i5k_amb.c index f9e2ed621f7b..2ede9388096b 100644 --- a/drivers/hwmon/i5k_amb.c +++ b/drivers/hwmon/i5k_amb.c @@ -81,6 +81,8 @@ static unsigned long amb_reg_temp(unsigned int amb) #define MAX_AMBS_PER_CHANNEL 16 #define MAX_AMBS (MAX_MEM_CHANNELS * \ MAX_AMBS_PER_CHANNEL) +#define CHANNEL_SHIFT 4 +#define DIMM_MASK 0xF /* * Ugly hack: For some reason the highest bit is set if there * are _any_ DIMMs in the channel. Attempting to read from @@ -89,7 +91,7 @@ static unsigned long amb_reg_temp(unsigned int amb) * might prevent us from seeing the 16th DIMM in the channel. */ #define REAL_MAX_AMBS_PER_CHANNEL 15 -#define KNOBS_PER_AMB 5 +#define KNOBS_PER_AMB 6 static unsigned long amb_num_from_reg(unsigned int byte_num, unsigned int bit) { @@ -238,6 +240,16 @@ static ssize_t show_amb_temp(struct device *dev, 500 * amb_read_byte(data, amb_reg_temp(attr->index))); } +static ssize_t show_label(struct device *dev, + struct device_attribute *devattr, + char *buf) +{ + struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); + + return sprintf(buf, "Ch. %d DIMM %d\n", attr->index >> CHANNEL_SHIFT, + attr->index & DIMM_MASK); +} + static int __devinit i5k_amb_hwmon_init(struct platform_device *pdev) { int i, j, k, d = 0; @@ -268,6 +280,20 @@ static int __devinit i5k_amb_hwmon_init(struct platform_device *pdev) continue; d++; + /* sysfs label */ + iattr = data->attrs + data->num_attrs; + snprintf(iattr->name, AMB_SYSFS_NAME_LEN, + "temp%d_label", d); + iattr->s_attr.dev_attr.attr.name = iattr->name; + iattr->s_attr.dev_attr.attr.mode = S_IRUGO; + iattr->s_attr.dev_attr.show = show_label; + iattr->s_attr.index = k; + res = device_create_file(&pdev->dev, + &iattr->s_attr.dev_attr); + if (res) + goto exit_remove; + data->num_attrs++; + /* Temperature sysfs knob */ iattr = data->attrs + data->num_attrs; snprintf(iattr->name, AMB_SYSFS_NAME_LEN, |
