linux-toradex.git/drivers/i2c/i2c-stub.c, branch v3.19-rc2 Linux kernel for Apalis and Colibri modules i2c: remove FSF address 2014-11-07T17:35:33+00:00 Wolfram Sang wsa+renesas@sang-engineering.com 2014-11-04T22:46:27+00:00 ca1f8da9ac5ce6e63d8f6933f83fabc1f3f961f4 We have a central copy of the GPL for that. Some addresses were already outdated. Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com> 
We have a central copy of the GPL for that. Some addresses were already
outdated.

Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
i2c: stub: Avoid an array overrun on I2C block transfers 2014-07-20T11:25:29+00:00 Jean Delvare jdelvare@suse.de 2014-07-13T15:17:17+00:00 0f6ba0d15f43e2be8cae9e3906aa03fcfe231e5b I2C block transfers can have a size up to 32 bytes. If starting close to the end of the address space, there may not be enough room to write that many bytes (on I2C block writes) or not enough bytes to be read (on I2C block reads.) In that case, we must shorten the transfer so that it does not exceed the address space. Signed-off-by: Jean Delvare <jdelvare@suse.de> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Wolfram Sang <wsa@the-dreams.de> 
I2C block transfers can have a size up to 32 bytes. If starting close
to the end of the address space, there may not be enough room to write
that many bytes (on I2C block writes) or not enough bytes to be read
(on I2C block reads.) In that case, we must shorten the transfer so
that it does not exceed the address space.

Signed-off-by: Jean Delvare <jdelvare@suse.de>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
i2c: stub: Add support for banked register ranges 2014-07-17T17:56:15+00:00 Jean Delvare jdelvare@suse.de 2014-07-10T10:56:59+00:00 2408c17fce9236d929b15a975cbd8129de089d62 Some chips implement banked register ranges. This allows implementing more registers than the limited 8-bit address space originally allows. In order to access a register on these chips, you must first select the proper bank. Add support for this mechanism to the i2c-stub driver so that such chips can be emulated. All the bank settings are passed as module parameters. Signed-off-by: Jean Delvare <jdelvare@suse.de> Tested-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Wolfram Sang <wsa@the-dreams.de> 
Some chips implement banked register ranges. This allows implementing
more registers than the limited 8-bit address space originally allows.
In order to access a register on these chips, you must first select
the proper bank. Add support for this mechanism to the i2c-stub driver
so that such chips can be emulated. All the bank settings are passed
as module parameters.

Signed-off-by: Jean Delvare <jdelvare@suse.de>
Tested-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
i2c: stub: Remember the number of emulated chips 2014-07-17T17:56:10+00:00 Jean Delvare jdelvare@suse.de 2014-07-10T10:45:11+00:00 1dff59831b2b78122a883f44269be6597b378afa This makes initialization, cleanup and look-up easier. Signed-off-by: Jean Delvare <jdelvare@suse.de> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Wolfram Sang <wsa@the-dreams.de> 
This makes initialization, cleanup and look-up easier.

Signed-off-by: Jean Delvare <jdelvare@suse.de>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
i2c: stub: Add support for SMBus block commands 2014-07-17T17:11:35+00:00 Guenter Roeck linux@roeck-us.net 2014-07-17T16:56:03+00:00 6f16b75a41abbbd11c4c8b7c62eb66604879b981 SMBus block commands are different to I2C block commands since the returned data is not normally accessible with byte or word commands on other command offsets. Add linked list of 'block' commands to support those commands. Access mechanism is quite simple: Block commands must be written before they can be read. Subsequent writes can be partial. Block read commands always return the number of bytes associated with the longest previous write. Signed-off-by: Guenter Roeck <linux@roeck-us.net> Reviewed-by: Jean Delvare <jdelvare@suse.de> Signed-off-by: Wolfram Sang <wsa@the-dreams.de> 
SMBus block commands are different to I2C block commands since
the returned data is not normally accessible with byte or word
commands on other command offsets. Add linked list of 'block'
commands to support those commands.

Access mechanism is quite simple: Block commands must be written
before they can be read. Subsequent writes can be partial. Block
read commands always return the number of bytes associated with
the longest previous write.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Reviewed-by: Jean Delvare <jdelvare@suse.de>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Update Jean Delvare's e-mail address 2014-01-29T19:40:08+00:00 Jean Delvare khali@linux-fr.org 2014-01-29T19:40:08+00:00 7c81c60f3789a082e141d7a013392af5f78db16a Signed-off-by: Jean Delvare <khali@linux-fr.org> 
Signed-off-by: Jean Delvare <khali@linux-fr.org>
i2c-stub: Move to drivers/i2c 2012-10-28T20:37:00+00:00 Jean Delvare khali@linux-fr.org 2012-10-28T20:37:00+00:00 31d178bffcff4c468c8c65bc42d9f4c0a7b8e3ec Move the i2c-stub driver to drivers/i2c, to match the Kconfig entry. This is less confusing that way. I also fixed all checkpatch warnings and errors. Signed-off-by: Jean Delvare <khali@linux-fr.org> Cc: Peter Huewe <peterhuewe@gmx.de> 
Move the i2c-stub driver to drivers/i2c, to match the Kconfig entry.
This is less confusing that way.

I also fixed all checkpatch warnings and errors.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Cc: Peter Huewe <peterhuewe@gmx.de>