Make some variables const:
1. bus oerations table
2. driver name
3. tpci control register table
Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
PCI probe routines have to be named _probe to avoid section mismatch warning.
Found when doing 'make allmodconfig'
Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
~0 can not be casted to u8. Instead of using the IPACK_ANY_ID for the format
field we introduce a new IPACK_ANY_FORMAT specifically for that field and
defined as 0xff.
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Jens Taprogge <jens.taprogge@taprogge.org>
Acked-by: Samuel Iglesias Gonsálvez <siglesias@igalia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Caused by commit 187e478240 ("Staging: ipack: Read the ID space during
device registration").
drivers/staging/ipack/ipack.c: In function 'ipack_device_read_id':
drivers/staging/ipack/ipack.c:291:2: error: implicit declaration of function
'ioread8' [-Werror=implicit-function-declaration]
drivers/staging/ipack/ipack.c:309:3: error: implicit declaration of function
'ioread16be' [-Werror=implicit-function-declaration]
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Samuel Iglesias Gonsálvez <siglesias@igalia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Devices are match based upon their vendor and device ids. Since
the individual drivers provide a list of supported ids they do not
need to implement the matching themselves.
Signed-off-by: Jens Taprogge <jens.taprogge@taprogge.org>
Signed-off-by: Samuel Iglesias Gonsálvez <siglesias@igalia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The modaliases look like ipack:fXvNdM, where X is the format version (8
bit) and N and M are the vendor and device ID represented as 32 bit
hexadecimal numbers each. Using 32 bits allows us to define IPACK_ANY_ID
as (~0) without interfering with the valid ids.
The resulting modalias string for ipoctal.ko looks like this (once
ipoctal provides a device table):
alias: ipack:f01v000000F0d00000048*
alias: ipack:f01v000000F0d0000002A*
alias: ipack:f01v000000F0d00000022*
(output from modinfo)
Signed-off-by: Jens Taprogge <jens.taprogge@taprogge.org>
Signed-off-by: Samuel Iglesias Gonsálvez <siglesias@igalia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Define memory address space, fix sparse warnings and mark the structs
reflecting hardware memory layout "packed" to be on the safe side.
Signed-off-by: Jens Taprogge <jens.taprogge@taprogge.org>
Signed-off-by: Samuel Iglesias Gonsálvez <siglesias@igalia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
During initialization we configure the TPCI200 so it does not swap data
lanes on IndustryPack module access. The read and write functions are
changed accordingly.
We are taking this approach in the hope that all IP Carriers are able to
present the Module memory layout unchanged. We can thus directly access
the memory and registers of IP Modules without having to rely on the
read and write wrappers currently exposed in ipack_bus_opts. A later
patch will convert the existing driver and remove the wrappers.
Signed-off-by: Jens Taprogge <jens.taprogge@taprogge.org>
Signed-off-by: Samuel Iglesias Gonsálvez <siglesias@igalia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The CPU might write-combine and/or cache memory access. Something that for
most modules is not desired.
Signed-off-by: Samuel Iglesias Gonsálvez <siglesias@igalia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The linked list of registered devices is not needed as the struct
tpci200_board is saved in private data field of the pci device.
Signed-off-by: Jens Taprogge <jens.taprogge@taprogge.org>
Signed-off-by: Samuel Iglesias Gonsálvez <siglesias@igalia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Use the ANSI/VITA 4.0-1995 (S2011) naming convention for the mezzanine or
daughter boards. They are called IP modules in the Standard.
Signed-off-by: Samuel Iglesias Gonsálvez <siglesias@igalia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Initialize the device when registering it. Sometimes the user access to it
and the device is in an unknown state, so it could fail.
Signed-off-by: Samuel Iglesias Gonsálvez <siglesias@igalia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
After opening and closing the file /dev/ipoctal.X.Y.Z for the second time, it
gives a kernel oops due to a dereference of a NULL pointer.
The problem was that tty->driver_data was not properly initialized when
accessing the file for the second time.
Reported-by: Alberto Garcia Gonzalez <agarcia@igalia.com>
Signed-off-by: Samuel Iglesias Gonsálvez <siglesias@igalia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The IRQ vector should be saved in MEM space base address according to the
datasheet.
Signed-off-by: Samuel Iglesias Gonsálvez <siglesias@igalia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
In the rest of the code, the data is protected with spin_lock_irqsave().
Signed-off-by: Samuel Iglesias Gonsalvez <siglesias@igalia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The buffer[][] field was replaced by tty_port->xmit_buf field but there was
some places that "buffer" was still accessed, giving a kernel oops because
it was uninitialized.
Signed-off-by: Samuel Iglesias Gonsalvez <siglesias@igalia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
As we have already got rid of sysfs files in the tpci200 driver, it is needed
to delete that mention in the TODO file.
Signed-off-by: Samuel Iglesias Gonsalvez <siglesias@igalia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Use DEFINE_PCI_DEVICE_TABLE() to create the device table and add
MODULE_DEVICE_TABLE() to export it.
Signed-off-by: Miguel Gómez <magomez@igalia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Remove the error_flag field from the ipoctal structure, as the error code
is handled through the tty abstraction. Remove the values definition as well.
Signed-off-by: Miguel Gómez <magomez@igalia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The configuration of the communication channel is handled by the tty
abstraction, so the ipoctal_config structure has become useless and it's
only used to store values that are never accesed. Remove it.
Signed-off-by: Miguel Gómez <magomez@igalia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Remove the gotos when handling error conditions, as the code gets clearer
and the gotos are not really avoiding code replication.
Signed-off-by: Miguel Gómez <magomez@igalia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Remove the "out" label from tpci200_request_irq(), as it can directly return
the error code instead of jumping.
Signed-off-by: Miguel Gómez <magomez@igalia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Remove the "out" label from tpci200_slot_map_space(), as it can directly return
the error code instead of jumping.
Signed-off-by: Miguel Gómez <magomez@igalia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
When uninstalling a device, the call to the ipack_bus_ops remove() frees
resources in the ipack device driver but without unregistering the device.
It generates a kernel oops when somebody wants to unregister the device.
Signed-off-by: Samuel Iglesias Gonsalvez <siglesias@igalia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
tpci200->info is used later when uninstalling the module. As there is another
kfree in the proper place, this patch removes the wrong one.
Signed-off-by: Samuel Iglesias Gonsalvez <siglesias@igalia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
When uninstalling a device, there is a loop of calls that produces, at the end,
two calls to __ipoctal_remove() function with the same ipack_device argument.
The first time works fine, but the second will fail in tty_unregister_driver()
To avoid this situation, the call to __ipoctal_remove() it is done only from the
ipack bus driver and not from the ipack device driver.
Signed-off-by: Samuel Iglesias Gonsalvez <siglesias@igalia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
When a bus driver calls ipack_driver_register(), it should manages the returning
NULL value to undo all the operations it did before this call, and print the
corresponding trace.
It is not a task for the ipack driver to call the remove() function here.
Signed-off-by: Samuel Iglesias Gonsalvez <siglesias@igalia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
