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15 Commits

Author SHA1 Message Date
Bhumika Goyal
5bd0ea9107 sparc64: vcc: make ktermios const 
Make this const as it is not modified anywhere.

Signed-off-by: Bhumika Goyal <bhumirks@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
 2017-08-29 15:10:44 -07:00
Dan Carpenter
c6b4ee9eba sparc64: vcc: Check for IS_ERR() instead of NULL 
The tty_alloc_driver() function never returns NULL, it returns error
pointers on error.

Fixes: ce808b7463 ("sparc64: vcc: TTY driver initialization and cleanup")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
 2017-08-28 15:39:55 -07:00
Jag Raman
8f03f948ba sparc64: vcc: Add install & cleanup TTY operations 
Add handlers to support TTY install & cleanup operations

Signed-off-by: Jagannathan Raman <jag.raman@oracle.com>
Reviewed-by: Liam Merwick <liam.merwick@oracle.com>
Reviewed-by: Shannon Nelson <shannon.nelson@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
 2017-08-15 21:33:54 -07:00
Jag Raman
e942e5775c sparc64: vcc: Add break_ctl TTY operation 
Add handler to support TTY break_ctl operation

Signed-off-by: Jagannathan Raman <jag.raman@oracle.com>
Reviewed-by: Liam Merwick <liam.merwick@oracle.com>
Reviewed-by: Shannon Nelson <shannon.nelson@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
 2017-08-15 21:33:54 -07:00
Jag Raman
aeee7debf3 sparc64: vcc: Add chars_in_buffer TTY operation 
Add handler to support TTY chars_in_buffer operation

Signed-off-by: Jagannathan Raman <jag.raman@oracle.com>
Reviewed-by: Liam Merwick <liam.merwick@oracle.com>
Reviewed-by: Shannon Nelson <shannon.nelson@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
 2017-08-15 21:33:54 -07:00
Jag Raman
cf0452600b sparc64: vcc: Add write & write_room TTY operations 
Add handlers to support TTY write & write_room operations

Signed-off-by: Jagannathan Raman <jag.raman@oracle.com>
Reviewed-by: Liam Merwick <liam.merwick@oracle.com>
Reviewed-by: Shannon Nelson <shannon.nelson@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
 2017-08-15 21:33:53 -07:00
Jag Raman
6a3ff25bc6 sparc64: vcc: Add hangup TTY operation 
Add handler to support TTY hangup operation

Signed-off-by: Jagannathan Raman <jag.raman@oracle.com>
Reviewed-by: Liam Merwick <liam.merwick@oracle.com>
Reviewed-by: Shannon Nelson <shannon.nelson@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
 2017-08-15 21:33:53 -07:00
Jag Raman
63a7174484 sparc64: vcc: Add open & close TTY operations 
Add handlers to support TTY open & close operations

Signed-off-by: Jagannathan Raman <jag.raman@oracle.com>
Reviewed-by: Liam Merwick <liam.merwick@oracle.com>
Reviewed-by: Shannon Nelson <shannon.nelson@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
 2017-08-15 21:33:53 -07:00
Jag Raman
103b9b0bc9 sparc64: vcc: Enable LDC event processing engine 
Enable event processing engine to handle LDC events

Signed-off-by: Jagannathan Raman <jag.raman@oracle.com>
Reviewed-by: Liam Merwick <liam.merwick@oracle.com>
Reviewed-by: Shannon Nelson <shannon.nelson@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
 2017-08-15 21:33:52 -07:00
Jag Raman
f8c553354e sparc64: vcc: Add RX & TX timer for delayed LDC operation 
Add RX & TX timers to perform delayed/asynchronous LDC
read and write operations.

Signed-off-by: Jagannathan Raman <jag.raman@oracle.com>
Reviewed-by: Liam Merwick <liam.merwick@oracle.com>
Reviewed-by: Shannon Nelson <shannon.nelson@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
 2017-08-15 21:33:52 -07:00
Jag Raman
8868e44a56 sparc64: vcc: Create sysfs attribute group 
Create sysfs attribute group to show the domain name and
send break command.

Signed-off-by: Jagannathan Raman <jag.raman@oracle.com>
Reviewed-by: Liam Merwick <liam.merwick@oracle.com>
Reviewed-by: Shannon Nelson <shannon.nelson@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
 2017-08-15 21:33:52 -07:00
Jag Raman
5d171050e2 sparc64: vcc: Enable VCC port probe and removal 
Enables VCC port probe and removal to initialize and terminate
VCC ports respectively. When a device/port matching the VCC driver
is added, the probe function is invoked along with a reference
to the device. remove function is called when the device is
removed.

Also add APIs to cache and retrieve VCC ports from a VCC table

Signed-off-by: Jagannathan Raman <jag.raman@oracle.com>
Reviewed-by: Liam Merwick <liam.merwick@oracle.com>
Reviewed-by: Shannon Nelson <shannon.nelson@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
 2017-08-15 21:33:51 -07:00
Jag Raman
ce808b7463 sparc64: vcc: TTY driver initialization and cleanup 
Allocate and register TTY driver during module init. Cleanup
TTY driver during module exit.

Signed-off-by: Jagannathan Raman <jag.raman@oracle.com>
Reviewed-by: Liam Merwick <liam.merwick@oracle.com>
Reviewed-by: Shannon Nelson <shannon.nelson@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
 2017-08-15 21:33:51 -07:00
Jag Raman
f283ebd564 sparc64: vcc: Add VCC debug message macros 
Add C macros to print debug messages from VCC module

Signed-off-by: Jagannathan Raman <jag.raman@oracle.com>
Reviewed-by: Liam Merwick <liam.merwick@oracle.com>
Reviewed-by: Shannon Nelson <shannon.nelson@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
 2017-08-15 21:33:51 -07:00
Jag Raman
55bd2133fc sparc64: vcc: Enable VCC module in linux 
Enables the Virtual Console Concentrator (VCC) module
in linux kernel

Signed-off-by: Jagannathan Raman <jag.raman@oracle.com>
Reviewed-by: Liam Merwick <liam.merwick@oracle.com>
Reviewed-by: Shannon Nelson <shannon.nelson@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
 2017-08-15 21:33:50 -07:00