diff options
Diffstat (limited to 'src/core')
| -rw-r--r-- | src/core/acpi.c | 43 | ||||
| -rw-r--r-- | src/core/blockdev.c | 138 | ||||
| -rw-r--r-- | src/core/null_sanboot.c | 44 |
3 files changed, 225 insertions, 0 deletions
diff --git a/src/core/acpi.c b/src/core/acpi.c index d573d2e98..223765f76 100644 --- a/src/core/acpi.c +++ b/src/core/acpi.c @@ -18,7 +18,9 @@ FILE_LICENCE ( GPL2_OR_LATER ); +#include <errno.h> #include <ipxe/acpi.h> +#include <ipxe/interface.h> /** @file * @@ -26,6 +28,13 @@ FILE_LICENCE ( GPL2_OR_LATER ); * */ +/****************************************************************************** + * + * Utility functions + * + ****************************************************************************** + */ + /** * Fix up ACPI table checksum * @@ -40,3 +49,37 @@ void acpi_fix_checksum ( struct acpi_description_header *acpi ) { } acpi->checksum -= sum; } + +/****************************************************************************** + * + * Interface methods + * + ****************************************************************************** + */ + +/** + * Describe object in an ACPI table + * + * @v intf Interface + * @v acpi ACPI table + * @v len Length of ACPI table + * @ret rc Return status code + */ +int acpi_describe ( struct interface *intf, + struct acpi_description_header *acpi, size_t len ) { + struct interface *dest; + acpi_describe_TYPE ( void * ) *op = + intf_get_dest_op ( intf, acpi_describe, &dest ); + void *object = intf_object ( dest ); + int rc; + + if ( op ) { + rc = op ( object, acpi, len ); + } else { + /* Default is to fail to describe */ + rc = -EOPNOTSUPP; + } + + intf_put ( dest ); + return rc; +} diff --git a/src/core/blockdev.c b/src/core/blockdev.c new file mode 100644 index 000000000..182765e30 --- /dev/null +++ b/src/core/blockdev.c @@ -0,0 +1,138 @@ +/* + * Copyright (C) 2010 Michael Brown <mbrown@fensystems.co.uk>. + * + * 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; either version 2 of the + * License, or any later version. + * + * 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. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + */ + +FILE_LICENCE ( GPL2_OR_LATER ); + +#include <errno.h> +#include <ipxe/interface.h> +#include <ipxe/blockdev.h> + +/** @file + * + * Block devices + * + */ + +/** + * Read from block device + * + * @v control Control interface + * @v data Data interface + * @v lba Starting logical block address + * @v count Number of logical blocks + * @v buffer Data buffer + * @v len Length of data buffer + * @ret rc Return status code + */ +int block_read ( struct interface *control, struct interface *data, + uint64_t lba, unsigned int count, + userptr_t buffer, size_t len ) { + struct interface *dest; + block_read_TYPE ( void * ) *op = + intf_get_dest_op ( control, block_read, &dest ); + void *object = intf_object ( dest ); + int rc; + + if ( op ) { + rc = op ( object, data, lba, count, buffer, len ); + } else { + /* Default is to fail to issue the command */ + rc = -EOPNOTSUPP; + } + + intf_put ( dest ); + return rc; +} + +/** + * Write to block device + * + * @v control Control interface + * @v data Data interface + * @v lba Starting logical block address + * @v count Number of logical blocks + * @v buffer Data buffer + * @v len Length of data buffer + * @ret rc Return status code + */ +int block_write ( struct interface *control, struct interface *data, + uint64_t lba, unsigned int count, + userptr_t buffer, size_t len ) { + struct interface *dest; + block_write_TYPE ( void * ) *op = + intf_get_dest_op ( control, block_write, &dest ); + void *object = intf_object ( dest ); + int rc; + + if ( op ) { + rc = op ( object, data, lba, count, buffer, len ); + } else { + /* Default is to fail to issue the command */ + rc = -EOPNOTSUPP; + } + + intf_put ( dest ); + return rc; +} + +/** + * Read block device capacity + * + * @v control Control interface + * @v data Data interface + * @ret rc Return status code + */ +int block_read_capacity ( struct interface *control, struct interface *data ) { + struct interface *dest; + block_read_capacity_TYPE ( void * ) *op = + intf_get_dest_op ( control, block_read_capacity, &dest ); + void *object = intf_object ( dest ); + int rc; + + if ( op ) { + rc = op ( object, data ); + } else { + /* Default is to fail to issue the command */ + rc = -EOPNOTSUPP; + } + + intf_put ( dest ); + return rc; +} + +/** + * Report block device capacity + * + * @v intf Interface + * @v capacity Block device capacity + */ +void block_capacity ( struct interface *intf, + struct block_device_capacity *capacity ) { + struct interface *dest; + block_capacity_TYPE ( void * ) *op = + intf_get_dest_op ( intf, block_capacity, &dest ); + void *object = intf_object ( dest ); + + if ( op ) { + op ( object, capacity ); + } else { + /* Default is to do nothing */ + } + + intf_put ( dest ); +} diff --git a/src/core/null_sanboot.c b/src/core/null_sanboot.c new file mode 100644 index 000000000..9cdb16290 --- /dev/null +++ b/src/core/null_sanboot.c @@ -0,0 +1,44 @@ +/* + * Copyright (C) 2010 Michael Brown <mbrown@fensystems.co.uk>. + * + * 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; either version 2 of the + * License, or any later version. + * + * 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. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + */ + +FILE_LICENCE ( GPL2_OR_LATER ); + +#include <errno.h> +#include <ipxe/sanboot.h> + +static int null_san_hook ( struct uri *uri __unused, + unsigned int drive __unused ) { + return -EOPNOTSUPP; +} + +static void null_san_unhook ( unsigned int drive __unused ) { + /* Do nothing */ +} + +static int null_san_boot ( unsigned int drive __unused ) { + return -EOPNOTSUPP; +} + +static int null_san_describe ( unsigned int drive __unused ) { + return -EOPNOTSUPP; +} + +PROVIDE_SANBOOT ( null, san_hook, null_san_hook ); +PROVIDE_SANBOOT ( null, san_unhook, null_san_unhook ); +PROVIDE_SANBOOT ( null, san_boot, null_san_boot ); +PROVIDE_SANBOOT ( null, san_describe, null_san_describe ); |