Commit Graph

10 Commits

Author SHA1 Message Date
Octavian Purdila f4e131dc38 goldfish: pipe: fix warnings for 32bit builds
drivers/platform/goldfish/goldfish_pipe.c: In function 'goldfish_cmd_status':
drivers/platform/goldfish/goldfish_pipe.c:164:14: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast]
     writel((u32)(u64)pipe, dev->base + PIPE_REG_CHANNEL);
                 ^
drivers/platform/goldfish/goldfish_pipe.c: In function 'goldfish_cmd':
drivers/platform/goldfish/goldfish_pipe.c:180:14: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast]
     writel((u32)(u64)pipe, dev->base + PIPE_REG_CHANNEL);
                 ^
drivers/platform/goldfish/goldfish_pipe.c: In function 'goldfish_pipe_read_write':
drivers/platform/goldfish/goldfish_pipe.c:337:16: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast]
       writel((u32)(u64)pipe, dev->base + PIPE_REG_CHANNEL);

Reported-by: Fengguang Wu <fengguang.wu@intel.com>
Cc: Jun Tian <jun.j.tian@intel.com>
Acked-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Octavian Purdila <octavian.purdila@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-05-16 11:32:51 -07:00
Octavian Purdila f2dbdf625d goldfish: bus: fix warnings for 32bit builds
drivers/platform/goldfish/pdev_bus.c: In function 'goldfish_new_pdev':
drivers/platform/goldfish/pdev_bus.c:136:14: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast]
  writel((u32)(u64)name, pdev_bus_base + PDEV_BUS_GET_NAME);

Reported-by: Fengguang Wu <fengguang.wu@intel.com>
Cc: Jun Tian <jun.j.tian@intel.com>
Acked-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Octavian Purdila <octavian.purdila@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-05-16 11:32:51 -07:00
Alan a99698facd goldfish: clean up the pipe driver 64bit ifdefs
Use the 64bit helper method to scrub most of the ifdefs from the driver. The
pipe reading has a funny case we can't scrub completely.

Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-05-15 13:20:42 -07:00
Octavian Purdila f10d843420 goldfish: add support for 64bit to the virtual bus
This patchs adds a new register to pass the upper 32bits for the
device name address when running in 64bit mode.

Signed-off-by: Octavian Purdila <octavian.purdila@intel.com>
Signed-off-by: Jun Tian <jun.j.tian@intel.com>
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-05-15 13:19:00 -07:00
Jun Tian 25c72c786c goldfish: fix kernel panic when using multiple adb connection
When using multiple adb on 64 bit kernel to transfer data,
the goldfish pipe interrupt will crash the kernel.

Signed-off-by: Jun Tian <jun.j.tian@intel.com>
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-05-15 13:19:00 -07:00
Jun Tian 49a75c444f goldfish: 64-bit pipe driver for goldfish platform
Support 64-bit channel and address for the goldfish pipe driver.

Signed-off-by: Jun Tian <jun.j.tian@intel.com>
Signed-off-by: Octavian Purdila <octavian.purdila@intel.com>
Signed-off-by: Brian Wood <brian.j.wood@intel.com>
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-05-15 13:19:00 -07:00
Alan Cox c1bc97f8f4 goldfish bus: don't call request_mem_region
This is a bug fix that has been lurking in the Google tree but not pushed
upstream.

From: Octavian Purdila <octavian.purdila@intel.com>

The memory region is already reserved in goldfish_init() during
platform init.

Signed-off-by: Octavian Purdila <octavian.purdila@intel.com>
Signed-off-by: Jun Tian <jun.j.tian@intel.com>
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-05-03 19:48:09 -04:00
Alan Cox 17c4c9db4a goldfish: Add a FIXME note to the pipe driver
Note a point in the pipe driver that wants future attention

Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-01-24 13:51:38 -08:00
David 'Digit' Turner c89f2750e9 goldfish: add QEMU pipe driver
A QEMU pipe is a very fast communication channel between the
guest system and the emulator. Usage from the guest is simply
something like;

  // connect to special device
  fd = open("/dev/qemu_pipe", O_RDWR);

  // tell which service we want to talk to (must be zero-terminated)
  write(fd, "pipeName", strlen("pipeName")+1);

  // do read()/write() through fd now
  ...

  // close channel
  close(fd);

Signed-off-by: David 'Digit' Turner <digit@android.com>
[Added support for parameter buffers for speed]
igned-off-by: Xin, Xiaohui <xiaohui.xin@intel.com>
Signed-off-by: Jiang, Yunhong <yunhong.jiang@intel.com>
Signed-off-by: Nakajima, Jun <jun.nakajima@intel.com>
[Ported to 3.6]
Signed-off-by: Tom Keel <thomas.keel@intel.com>
[Ported to 3.7, moved to platform/goldfish]
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-01-24 13:49:34 -08:00
Jun Nakajima e809c22b8f goldfish: add the goldfish virtual bus
This imports the current Google code and cleans it up slightly to use pr_ and
to properly request its resources.

Goldfish is an emulator used for Android development. It has a virtual bus where
the emulator passes platform device information to the guest which then creates
the appropriate devices.

This part of the emulation is not architecture specific so should not be hiding
in architecture trees as it does in the Google Android tree. The constants it
uses do depend on the platform and the platform creates the bus device which then
talks to the emulator to ascertain the actual devices present.

Signed-off-by: Sheng Yang <sheng@linux.intel.com>
Signed-off-by: Yunhong Jiang <yunhong.jiang@intel.com>
Signed-off-by: Xiaohui Xin <xiaohui.xin@intel.com>
Signed-off-by: Jun Nakajima <jun.nakajima@intel.com>
Signed-off-by: Bruce Beare <bruce.j.beare@intel.com>
[Moved out of x86, cleaned up headers]
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-01-24 13:49:34 -08:00