Commit Graph

9 Commits

Author SHA1 Message Date
Sjur Braendeland 529d6dad5b caif-driver: Add CAIF-SPI Protocol driver.
This patch introduces the CAIF SPI Protocol Driver for
CAIF Link Layer.

This driver implements a platform driver to accommodate for a
platform specific SPI device. A general platform driver is not
possible as there are no SPI Slave side Kernel API defined.
A sample CAIF SPI Platform device can be found in
.../Documentation/networking/caif/spi_porting.txt

Signed-off-by: Sjur Braendeland <sjur.brandeland@stericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-06-29 00:08:21 -07:00
Sjur Braendeland 01eebb53a6 caif: Kconfig and Makefile fixes
Use "depends on" instead of "if" in Kconfig files.
Fixed CAIF debug flag, and removed unnecessary clean-* options.

Signed-off-by: Sjur Braendeland <sjur.brandeland@stericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-06-29 00:06:38 -07:00
Sjur Braendeland 2aa40aef9d caif: Use link layer MTU instead of fixed MTU
Previously CAIF supported maximum transfer size of ~4050.
The transfer size is now calculated dynamically based on the
link layers mtu size.

Signed-off-by: Sjur Braendeland@stericsson.com
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-06-20 19:46:06 -07:00
Dan Carpenter c1f8fc57c0 caif: add newlines after declarations in caif_serial.c
I added newlines after the declarations in caif_serial.c.  This is
normal kernel style, although I can't see anywhere it's documented.

Signed-off-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-06-02 05:16:22 -07:00
Dan Carpenter 7c25492871 caif: remove unneeded variable from caif_net_open()
We don't use the "ser" variable so I've removed it.

Signed-off-by: Dan Carpenter <error27@gmail.com>
Acked-by: Sjur Braendeland <sjur.brandeland@stericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-06-02 05:16:21 -07:00
Sjur Braendeland d3f744e0d6 caif: Ldisc add permission check and mem-alloc error check
Changes:
   o Added permission checks for installing. CAP_SYS_ADMIN and
     CAP_SYS_TTY_CONFIG can install the ldisc.
   o Check if allocation of skb was successful.

Signed-off-by: Sjur Braendeland <sjur.brandeland@stericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-04-28 12:55:10 -07:00
Alan Cox e31d5a0594 caif: tty's are kref objects so take a reference
I don't think this can be abused in this case but do things properly.

Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-04-07 16:50:00 -07:00
Alan Cox c93f094021 caif: check write operations
write is optional for a tty device. Check that we have a write op rather
than calling NULL.

Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-04-07 16:49:31 -07:00
Sjur Braendeland 9b27105b4a net-caif-driver: add CAIF serial driver (ldisc)
Add CAIF Serial driver. This driver is implemented as a line discipline.

caif_serial uses the following module parameters:
ser_use_stx - specifies if STart of frame eXtension is in use.
ser_loop    - sets the interface in loopback mode.

Signed-off-by: Sjur Braendeland <sjur.brandeland@stericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-03-30 19:08:50 -07:00