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| author | Serge Semin <fancer.lancer@gmail.com> | 2018-07-17 12:24:34 +0300 |
|---|---|---|
| committer | Jon Mason <jdmason@kudzu.us> | 2018-11-01 10:33:12 -0400 |
| commit | 40070408f54e76896d75ddccaabdd0c0714600f1 (patch) | |
| tree | 08f17cf8deb2a95e4fa9d42971e616ed998752df /drivers/ntb/hw/idt/ntb_hw_idt.h | |
| parent | 906e86b22dba61cb1baaed9be7fdcbf0afd74d7b (diff) | |
| download | linux-0-day-40070408f54e76896d75ddccaabdd0c0714600f1.tar.gz linux-0-day-40070408f54e76896d75ddccaabdd0c0714600f1.tar.xz | |
ntb: idt: Alter temperature read method
In order to create a hwmon interface for the IDT PCIe-switch temperature
sensor the already available reader method should be improved. Particularly
we need to redesign it so one would be able to read temperature/offset
values from registers of the passed types. Since IDT sensor interface
provides temperature in unsigned format 0:7:1 (7 bits for real value
and one for fraction) we also need to have helpers for the typical sysfs
temperature data type conversion to and from this format. Even though
the IDT PCIe-switch provided temperature offset got the same but signed
type it can be translated by these methods too.
Signed-off-by: Serge Semin <fancer.lancer@gmail.com>
Signed-off-by: Jon Mason <jdmason@kudzu.us>
Diffstat (limited to 'drivers/ntb/hw/idt/ntb_hw_idt.h')
| -rw-r--r-- | drivers/ntb/hw/idt/ntb_hw_idt.h | 56 |
1 files changed, 56 insertions, 0 deletions
diff --git a/drivers/ntb/hw/idt/ntb_hw_idt.h b/drivers/ntb/hw/idt/ntb_hw_idt.h index 856fd182f6f4f..9dfd6b11a621e 100644 --- a/drivers/ntb/hw/idt/ntb_hw_idt.h +++ b/drivers/ntb/hw/idt/ntb_hw_idt.h @@ -886,12 +886,42 @@ #define IDT_SWPxMSGCTL_PART_FLD 4 /* + * TMPCTL register fields related constants + * @IDT_TMPCTL_LTH_MASK: Low temperature threshold field mask + * @IDT_TMPCTL_LTH_FLD: Low temperature threshold field offset + * @IDT_TMPCTL_MTH_MASK: Middle temperature threshold field mask + * @IDT_TMPCTL_MTH_FLD: Middle temperature threshold field offset + * @IDT_TMPCTL_HTH_MASK: High temperature threshold field mask + * @IDT_TMPCTL_HTH_FLD: High temperature threshold field offset + * @IDT_TMPCTL_PDOWN: Temperature sensor power down + */ +#define IDT_TMPCTL_LTH_MASK 0x000000FFU +#define IDT_TMPCTL_LTH_FLD 0 +#define IDT_TMPCTL_MTH_MASK 0x0000FF00U +#define IDT_TMPCTL_MTH_FLD 8 +#define IDT_TMPCTL_HTH_MASK 0x00FF0000U +#define IDT_TMPCTL_HTH_FLD 16 +#define IDT_TMPCTL_PDOWN 0x80000000U + +/* * TMPSTS register fields related constants * @IDT_TMPSTS_TEMP_MASK: Current temperature field mask * @IDT_TMPSTS_TEMP_FLD: Current temperature field offset */ #define IDT_TMPSTS_TEMP_MASK 0x000000FFU #define IDT_TMPSTS_TEMP_FLD 0 +#define IDT_TMPSTS_LTEMP_MASK 0x0000FF00U +#define IDT_TMPSTS_LTEMP_FLD 8 +#define IDT_TMPSTS_HTEMP_MASK 0x00FF0000U +#define IDT_TMPSTS_HTEMP_FLD 16 + +/* + * TMPADJ register fields related constants + * @IDT_TMPADJ_OFFSET_MASK: Temperature value offset field mask + * @IDT_TMPADJ_OFFSET_FLD: Temperature value offset field offset + */ +#define IDT_TMPADJ_OFFSET_MASK 0x000000FFU +#define IDT_TMPADJ_OFFSET_FLD 0 /* * Helper macro to get/set the corresponding field value @@ -951,6 +981,32 @@ #define IDT_DIR_SIZE_ALIGN 1 /* + * IDT PCIe-switch temperature sensor value limits + * @IDT_TEMP_MIN_MDEG: Minimal integer value of temperature + * @IDT_TEMP_MAX_MDEG: Maximal integer value of temperature + * @IDT_TEMP_MIN_OFFSET:Minimal integer value of temperature offset + * @IDT_TEMP_MAX_OFFSET:Maximal integer value of temperature offset + */ +#define IDT_TEMP_MIN_MDEG 0 +#define IDT_TEMP_MAX_MDEG 127500 +#define IDT_TEMP_MIN_OFFSET -64000 +#define IDT_TEMP_MAX_OFFSET 63500 + +/* + * Temperature sensor values enumeration + * @IDT_TEMP_CUR: Current temperature + * @IDT_TEMP_LOW: Lowest historical temperature + * @IDT_TEMP_HIGH: Highest historical temperature + * @IDT_TEMP_OFFSET: Current temperature offset + */ +enum idt_temp_val { + IDT_TEMP_CUR, + IDT_TEMP_LOW, + IDT_TEMP_HIGH, + IDT_TEMP_OFFSET +}; + +/* * IDT Memory Windows type. Depending on the device settings, IDT supports * Direct Address Translation MW registers and Lookup Table registers * @IDT_MW_DIR: Direct address translation |