From e44e3482bdb4d0ebde2d8b41830ac2cdb07948fb Mon Sep 17 00:00:00 2001 From: Yang Zhang Date: Fri, 28 Aug 2015 09:58:54 +0800 Subject: Add qemu 2.4.0 Change-Id: Ic99cbad4b61f8b127b7dc74d04576c0bcbaaf4f5 Signed-off-by: Yang Zhang --- qemu/roms/ipxe/src/core/hw.c | 69 ++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 69 insertions(+) create mode 100644 qemu/roms/ipxe/src/core/hw.c (limited to 'qemu/roms/ipxe/src/core/hw.c') diff --git a/qemu/roms/ipxe/src/core/hw.c b/qemu/roms/ipxe/src/core/hw.c new file mode 100644 index 000000000..91736a652 --- /dev/null +++ b/qemu/roms/ipxe/src/core/hw.c @@ -0,0 +1,69 @@ +#include +#include +#include +#include +#include +#include +#include +#include + +/** @file + * + * "Hello World" data source + * + */ + +struct hw { + struct refcnt refcnt; + struct interface xfer; + struct process process; +}; + +static const char hw_msg[] = "Hello world!\n"; + +static void hw_finished ( struct hw *hw, int rc ) { + intf_shutdown ( &hw->xfer, rc ); + process_del ( &hw->process ); +} + +static void hw_step ( struct hw *hw ) { + int rc; + + if ( xfer_window ( &hw->xfer ) ) { + rc = xfer_deliver_raw ( &hw->xfer, hw_msg, sizeof ( hw_msg ) ); + hw_finished ( hw, rc ); + } +} + +static struct interface_operation hw_xfer_operations[] = { + INTF_OP ( xfer_window_changed, struct hw *, hw_step ), + INTF_OP ( intf_close, struct hw *, hw_finished ), +}; + +static struct interface_descriptor hw_xfer_desc = + INTF_DESC ( struct hw, xfer, hw_xfer_operations ); + +static struct process_descriptor hw_process_desc = + PROC_DESC_ONCE ( struct hw, process, hw_step ); + +static int hw_open ( struct interface *xfer, struct uri *uri __unused ) { + struct hw *hw; + + /* Allocate and initialise structure */ + hw = zalloc ( sizeof ( *hw ) ); + if ( ! hw ) + return -ENOMEM; + ref_init ( &hw->refcnt, NULL ); + intf_init ( &hw->xfer, &hw_xfer_desc, &hw->refcnt ); + process_init ( &hw->process, &hw_process_desc, &hw->refcnt ); + + /* Attach parent interface, mortalise self, and return */ + intf_plug_plug ( &hw->xfer, xfer ); + ref_put ( &hw->refcnt ); + return 0; +} + +struct uri_opener hw_uri_opener __uri_opener = { + .scheme = "hw", + .open = hw_open, +}; -- cgit 1.2.3-korg