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author | Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> | 2012-09-12 11:14:33 -0400 |
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committer | Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> | 2012-09-12 11:14:33 -0400 |
commit | 25a765b7f05cb8460fa01b54568894b20e184862 (patch) | |
tree | 0b56db57b4d9f912393ab303c269e0fe6cdf8635 /arch/tile/include/gxio/usb_host.h | |
parent | 9d2be9287107695708e6aae5105a8a518a6cb4d0 (diff) | |
parent | 64282278989d5b0398dcb3ba7904cb00c621dc35 (diff) | |
download | linux-stable-25a765b7f05cb8460fa01b54568894b20e184862.tar.gz linux-stable-25a765b7f05cb8460fa01b54568894b20e184862.tar.bz2 linux-stable-25a765b7f05cb8460fa01b54568894b20e184862.zip |
Merge branch 'x86/platform' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip into stable/for-linus-3.7
* 'x86/platform' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (9690 commits)
x86: Document x86_init.paging.pagetable_init()
x86: xen: Cleanup and remove x86_init.paging.pagetable_setup_done()
x86: Move paging_init() call to x86_init.paging.pagetable_init()
x86: Rename pagetable_setup_start() to pagetable_init()
x86: Remove base argument from x86_init.paging.pagetable_setup_start
Linux 3.6-rc5
HID: tpkbd: work even if the new Lenovo Keyboard driver is not configured
Remove user-triggerable BUG from mpol_to_str
xen/pciback: Fix proper FLR steps.
uml: fix compile error in deliver_alarm()
dj: memory scribble in logi_dj
Fix order of arguments to compat_put_time[spec|val]
xen: Use correct masking in xen_swiotlb_alloc_coherent.
xen: fix logical error in tlb flushing
xen/p2m: Fix one-off error in checking the P2M tree directory.
powerpc: Don't use __put_user() in patch_instruction
powerpc: Make sure IPI handlers see data written by IPI senders
powerpc: Restore correct DSCR in context switch
powerpc: Fix DSCR inheritance in copy_thread()
powerpc: Keep thread.dscr and thread.dscr_inherit in sync
...
Diffstat (limited to 'arch/tile/include/gxio/usb_host.h')
-rw-r--r-- | arch/tile/include/gxio/usb_host.h | 87 |
1 files changed, 87 insertions, 0 deletions
diff --git a/arch/tile/include/gxio/usb_host.h b/arch/tile/include/gxio/usb_host.h new file mode 100644 index 000000000000..a60a126e4565 --- /dev/null +++ b/arch/tile/include/gxio/usb_host.h @@ -0,0 +1,87 @@ +/* + * Copyright 2012 Tilera Corporation. All Rights Reserved. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation, version 2. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or + * NON INFRINGEMENT. See the GNU General Public License for + * more details. + */ +#ifndef _GXIO_USB_H_ +#define _GXIO_USB_H_ + +#include "common.h" + +#include <hv/drv_usb_host_intf.h> +#include <hv/iorpc.h> + +/* + * + * An API for manipulating general-purpose I/O pins. + */ + +/* + * + * The USB shim allows access to the processor's Universal Serial Bus + * connections. + */ + +/* A context object used to manage USB hardware resources. */ +typedef struct { + + /* File descriptor for calling up to the hypervisor. */ + int fd; + + /* The VA at which our MMIO registers are mapped. */ + char *mmio_base; +} gxio_usb_host_context_t; + +/* Initialize a USB context. + * + * A properly initialized context must be obtained before any of the other + * gxio_usb_host routines may be used. + * + * @param context Pointer to a gxio_usb_host_context_t, which will be + * initialized by this routine, if it succeeds. + * @param usb_index Index of the USB shim to use. + * @param is_ehci Nonzero to use the EHCI interface; zero to use the OHCI + * intereface. + * @return Zero if the context was successfully initialized, else a + * GXIO_ERR_xxx error code. + */ +extern int gxio_usb_host_init(gxio_usb_host_context_t * context, int usb_index, + int is_ehci); + +/* Destroy a USB context. + * + * Once destroyed, a context may not be used with any gxio_usb_host routines + * other than gxio_usb_host_init(). After this routine returns, no further + * interrupts or signals requested on this context will be delivered. The + * state and configuration of the pins which had been attached to this + * context are unchanged by this operation. + * + * @param context Pointer to a gxio_usb_host_context_t. + * @return Zero if the context was successfully destroyed, else a + * GXIO_ERR_xxx error code. + */ +extern int gxio_usb_host_destroy(gxio_usb_host_context_t * context); + +/* Retrieve the address of the shim's MMIO registers. + * + * @param context Pointer to a properly initialized gxio_usb_host_context_t. + * @return The address of the shim's MMIO registers. + */ +extern void *gxio_usb_host_get_reg_start(gxio_usb_host_context_t * context); + +/* Retrieve the length of the shim's MMIO registers. + * + * @param context Pointer to a properly initialized gxio_usb_host_context_t. + * @return The length of the shim's MMIO registers. + */ +extern size_t gxio_usb_host_get_reg_len(gxio_usb_host_context_t * context); + +#endif /* _GXIO_USB_H_ */ |