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path: root/drivers/platform/goldfish/goldfish_pipe.c
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2015-06-26Merge tag 'staging-4.2-rc1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging Pull staging driver updates from Greg KH: "Here's the big, really big, staging tree patches for 4.2-rc1. Loads of stuff in here, almost all just coding style fixes / churn, and a few new drivers as well, one of which I just disabled from the build a few minutes ago due to way too many build warnings. Other than the one "disable this driver" patch, all of these have been in linux-next for quite a while with no reported issues" * tag 'staging-4.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: (1163 commits) staging: wilc1000: disable driver due to build warnings Staging: rts5208: fix CHANGE_LINK_STATE value Staging: sm750fb: ddk750_swi2c.c: Insert spaces before parenthesis Staging: sm750fb: ddk750_swi2c.c: Place braces on correct lines Staging: sm750fb: ddk750_swi2c.c: Insert spaces around operators Staging: sm750fb: ddk750_swi2c.c: Replace spaces with tabs Staging: sm750fb: ddk750_swi2c.h: Shorten lines to under 80 characters Staging: sm750fb: ddk750_swi2c.h: Replace spaces with tabs Staging: sm750fb: modedb.h: Shorten lines to under 80 characters Staging: sm750fb: modedb.h: Replace spaces with tabs staging: comedi: addi_apci_3120: rename 'this_board' variables staging: comedi: addi_apci_1516: rename 'this_board' variables staging: comedi: ni_atmio: cleanup ni_getboardtype() staging: comedi: vmk80xx: sanity check context used to get the boardinfo staging: comedi: vmk80xx: rename 'boardinfo' variables staging: comedi: dt3000: rename 'this_board' variables staging: comedi: adv_pci_dio: rename 'this_board' variables staging: comedi: cb_pcidas64: rename 'thisboard' variables staging: comedi: cb_pcidas: rename 'thisboard' variables staging: comedi: me4000: rename 'thisboard' variables ...
2015-05-31staging: goldfish: Fix pointer cast for 32 bitsPeter Senna Tschudin
As the first argument of gf_write64() was of type unsigned long, and as some calls to gf_write64() were casting the first argument from void * to u64 the compiler and/or sparse were printing warnings for casts of wrong sizes when compiling for i386. This patch changes the type of the first argument of gf_write64() to const void *, and update calls to the function. This change fixed the warnings and allowed to remove casts from 3 calls to gf_write64(). In addition gf_write64() was renamed to gf_write_ptr() as the name was misleading because it only writes 32 bits on 32 bit systems. gf_write_dma_addr() was added to handle dma_addr_t values which is used at drivers/staging/goldfish/goldfish_audio.c. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Peter Senna Tschudin <peter.senna@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-05-24goldfish_pipe: Fix unlikely() misuseJoe Perches
Move the close parenthesis. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-05-16goldfish: pipe: fix warnings for 32bit buildsOctavian Purdila
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>
2014-05-15goldfish: clean up the pipe driver 64bit ifdefsAlan
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>
2014-05-15goldfish: fix kernel panic when using multiple adb connectionJun Tian
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>
2014-05-15goldfish: 64-bit pipe driver for goldfish platformJun Tian
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>
2013-01-24goldfish: Add a FIXME note to the pipe driverAlan Cox
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>
2013-01-24goldfish: add QEMU pipe driverDavid 'Digit' Turner
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>