remarkable-linux/drivers/hsi
Kai Vehmanen 7f62fe8a58 HSI: cmt_speech: Add cmt-speech driver
Introduces the cmt-speech driver, which implements
a character device interface for transferring speech
data frames over HSI/SSI.

The driver is used to exchange voice/speech data between
the Nokia N900/N950/N9's modem and its cpu.

Signed-off-by: Kai Vehmanen <kai.vehmanen@nokia.com>
Signed-off-by: Carlos Chinea <carlos.chinea@nokia.com>
Signed-off-by: Joni Lapilainen <joni.lapilainen@gmail.com>

Since the original driver has been written for 2.6.28 some
build fixes and general cleanups have been added by me:

 * fix build for 4.0 kernel
 * replace GFP_ATOMIC with GFP_KERNEL in cs_alloc_cmds()
 * add sanity check for CS_SET_WAKELINE ioctl
 * cleanup driver initialisation
 * rename driver to cmt-speech to be consistent with
   ssi-protocol driver
 * move cs-protocol.h to include/uapi/linux/hsi, since
   it describes a userspace API
 * replace hardcoded channels numbers with values provided
   via the HSI framework (e.g. coming from DT)

Acked-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Tested-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Sebastian Reichel <sre@kernel.org>
2015-03-31 22:14:04 +02:00
..
clients HSI: cmt_speech: Add cmt-speech driver 2015-03-31 22:14:04 +02:00
controllers * misc. fixes in omap-ssi and nokia-modem drivers 2014-12-15 17:33:47 -08:00
hsi.c HSI: Add common DT binding for HSI client devices 2014-05-16 00:54:45 +02:00
hsi_boardinfo.c HSI: hsi: Introducing HSI framework 2012-01-05 15:42:13 +02:00
hsi_core.h HSI: hsi: Introducing HSI framework 2012-01-05 15:42:13 +02:00
Kconfig HSI: Introduce OMAP SSI driver 2014-05-16 00:54:51 +02:00
Makefile HSI: Introduce OMAP SSI driver 2014-05-16 00:54:51 +02:00