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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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17fecb5582
This is a 1-wire/w1 DS2423 slave driver for reading the values from all 4 counters available DS2423 devices by using standard w1_slave file. In ds2423 the counters are tied to ram pages 12-15 in and each of those ram-pages. Each of these counter values (and asoociated ram page values) are represented as a own line in w1_slave file. Driver has been tested on mips and x86. usage example: cat /sys/bus/w1/devices/1d-00000009b964/w1_slave 00 02 00 00 00 00 00 00 00 6d 38 00 ff ff 00 00 fe ff 00 00 ff ff 00 00 ff ff 00 00 ff ff 00 00 ff ff 00 00 ff ff 00 00 ff ff crc=YES c=2 00 02 00 00 00 00 00 00 00 e0 1f 00 ff ff 00 00 ff ff 00 00 ff ff 00 00 ff ff 00 00 ff ff 00 00 ff ff 00 00 ff ff 00 00 ff ff crc=YES c=2 00 5a 0e 5f 18 00 00 00 00 0b 28 00 ff ff 00 00 ff ff 00 00 ff ff 00 00 ff ff 00 00 ff ff 00 00 ff ff 00 00 ff ff 00 00 ff ff crc=YES c=408882778 00 05 00 00 00 00 00 00 00 8d 39 ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff crc=YES c=5 Patch includes also the documentation. [randy.dunlap@oracle.com: fix ds2423 build, needs to select CRC16] Signed-off-by: Mika Laitio <lamikr@pilppa.org> Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Cc: Evgeniy Polyakov <johnpol@2ka.mipt.ru> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
72 lines
1.8 KiB
Plaintext
72 lines
1.8 KiB
Plaintext
#
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# 1-wire slaves configuration
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#
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menu "1-wire Slaves"
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config W1_SLAVE_THERM
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tristate "Thermal family implementation"
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help
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Say Y here if you want to connect 1-wire thermal sensors to your
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wire.
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config W1_SLAVE_SMEM
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tristate "Simple 64bit memory family implementation"
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help
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Say Y here if you want to connect 1-wire
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simple 64bit memory rom(ds2401/ds2411/ds1990*) to your wire.
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config W1_SLAVE_DS2423
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tristate "Counter 1-wire device (DS2423)"
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select CRC16
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help
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If you enable this you can read the counter values available
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in the DS2423 chipset from the w1_slave file under the
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sys file system.
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Say Y here if you want to use a 1-wire
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counter family device (DS2423).
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config W1_SLAVE_DS2431
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tristate "1kb EEPROM family support (DS2431)"
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help
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Say Y here if you want to use a 1-wire
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1kb EEPROM family device (DS2431)
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config W1_SLAVE_DS2433
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tristate "4kb EEPROM family support (DS2433)"
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help
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Say Y here if you want to use a 1-wire
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4kb EEPROM family device (DS2433).
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config W1_SLAVE_DS2433_CRC
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bool "Protect DS2433 data with a CRC16"
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depends on W1_SLAVE_DS2433
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select CRC16
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help
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Say Y here to protect DS2433 data with a CRC16.
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Each block has 30 bytes of data and a two byte CRC16.
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Full block writes are only allowed if the CRC is valid.
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config W1_SLAVE_DS2760
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tristate "Dallas 2760 battery monitor chip (HP iPAQ & others)"
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depends on W1
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help
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If you enable this you will have the DS2760 battery monitor
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chip support.
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The battery monitor chip is used in many batteries/devices
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as the one who is responsible for charging/discharging/monitoring
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Li+ batteries.
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If you are unsure, say N.
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config W1_SLAVE_BQ27000
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tristate "BQ27000 slave support"
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depends on W1
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help
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Say Y here if you want to use a hdq
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bq27000 slave support.
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endmenu
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