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7f62fe8a5 HSI: cmt_speech: Add cmt-speech driver ... Browse Code »

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
Signed-off-by: Carlos Chinea
Signed-off-by: Joni Lapilainen

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
Tested-by: Pavel Machek
Signed-off-by: Sebastian Reichel

Kai Vehmanen
2015-04-01 04:14:04 +0800

Makefile 199 Bytes

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#
# Makefile for HSI clients
#

obj-$(CONFIG_NOKIA_MODEM)	+= nokia-modem.o
obj-$(CONFIG_SSI_PROTOCOL)	+= ssi_protocol.o
obj-$(CONFIG_CMT_SPEECH)	+= cmt_speech.o
obj-$(CONFIG_HSI_CHAR)		+= hsi_char.o