diff options
Diffstat (limited to 'drivers/acpi/executer/exregion.c')
-rw-r--r-- | drivers/acpi/executer/exregion.c | 499 |
1 files changed, 0 insertions, 499 deletions
diff --git a/drivers/acpi/executer/exregion.c b/drivers/acpi/executer/exregion.c deleted file mode 100644 index ceb269e45aba..000000000000 --- a/drivers/acpi/executer/exregion.c +++ /dev/null @@ -1,499 +0,0 @@ - -/****************************************************************************** - * - * Module Name: exregion - ACPI default op_region (address space) handlers - * - *****************************************************************************/ - -/* - * Copyright (C) 2000 - 2008, Intel Corp. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions, and the following disclaimer, - * without modification. - * 2. Redistributions in binary form must reproduce at minimum a disclaimer - * substantially similar to the "NO WARRANTY" disclaimer below - * ("Disclaimer") and any redistribution must be conditioned upon - * including a substantially similar Disclaimer requirement for further - * binary redistribution. - * 3. Neither the names of the above-listed copyright holders nor the names - * of any contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * Alternatively, this software may be distributed under the terms of the - * GNU General Public License ("GPL") version 2 as published by the Free - * Software Foundation. - * - * NO WARRANTY - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, - * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGES. - */ - -#include <acpi/acpi.h> -#include <acpi/accommon.h> -#include <acpi/acinterp.h> - -#define _COMPONENT ACPI_EXECUTER -ACPI_MODULE_NAME("exregion") - -/******************************************************************************* - * - * FUNCTION: acpi_ex_system_memory_space_handler - * - * PARAMETERS: Function - Read or Write operation - * Address - Where in the space to read or write - * bit_width - Field width in bits (8, 16, or 32) - * Value - Pointer to in or out value - * handler_context - Pointer to Handler's context - * region_context - Pointer to context specific to the - * accessed region - * - * RETURN: Status - * - * DESCRIPTION: Handler for the System Memory address space (Op Region) - * - ******************************************************************************/ -acpi_status -acpi_ex_system_memory_space_handler(u32 function, - acpi_physical_address address, - u32 bit_width, - acpi_integer * value, - void *handler_context, void *region_context) -{ - acpi_status status = AE_OK; - void *logical_addr_ptr = NULL; - struct acpi_mem_space_context *mem_info = region_context; - u32 length; - acpi_size window_size; -#ifdef ACPI_MISALIGNMENT_NOT_SUPPORTED - u32 remainder; -#endif - - ACPI_FUNCTION_TRACE(ex_system_memory_space_handler); - - /* Validate and translate the bit width */ - - switch (bit_width) { - case 8: - length = 1; - break; - - case 16: - length = 2; - break; - - case 32: - length = 4; - break; - - case 64: - length = 8; - break; - - default: - ACPI_ERROR((AE_INFO, "Invalid SystemMemory width %d", - bit_width)); - return_ACPI_STATUS(AE_AML_OPERAND_VALUE); - } - -#ifdef ACPI_MISALIGNMENT_NOT_SUPPORTED - /* - * Hardware does not support non-aligned data transfers, we must verify - * the request. - */ - (void)acpi_ut_short_divide((acpi_integer) address, length, NULL, - &remainder); - if (remainder != 0) { - return_ACPI_STATUS(AE_AML_ALIGNMENT); - } -#endif - - /* - * Does the request fit into the cached memory mapping? - * Is 1) Address below the current mapping? OR - * 2) Address beyond the current mapping? - */ - if ((address < mem_info->mapped_physical_address) || - (((acpi_integer) address + length) > ((acpi_integer) - mem_info-> - mapped_physical_address + - mem_info->mapped_length))) { - /* - * The request cannot be resolved by the current memory mapping; - * Delete the existing mapping and create a new one. - */ - if (mem_info->mapped_length) { - - /* Valid mapping, delete it */ - - acpi_os_unmap_memory(mem_info->mapped_logical_address, - mem_info->mapped_length); - } - - /* - * Don't attempt to map memory beyond the end of the region, and - * constrain the maximum mapping size to something reasonable. - */ - window_size = (acpi_size) - ((mem_info->address + mem_info->length) - address); - - if (window_size > ACPI_SYSMEM_REGION_WINDOW_SIZE) { - window_size = ACPI_SYSMEM_REGION_WINDOW_SIZE; - } - - /* Create a new mapping starting at the address given */ - - mem_info->mapped_logical_address = - acpi_os_map_memory((acpi_physical_address) address, window_size); - if (!mem_info->mapped_logical_address) { - ACPI_ERROR((AE_INFO, - "Could not map memory at %8.8X%8.8X, size %X", - ACPI_FORMAT_NATIVE_UINT(address), - (u32) window_size)); - mem_info->mapped_length = 0; - return_ACPI_STATUS(AE_NO_MEMORY); - } - - /* Save the physical address and mapping size */ - - mem_info->mapped_physical_address = address; - mem_info->mapped_length = window_size; - } - - /* - * Generate a logical pointer corresponding to the address we want to - * access - */ - logical_addr_ptr = mem_info->mapped_logical_address + - ((acpi_integer) address - - (acpi_integer) mem_info->mapped_physical_address); - - ACPI_DEBUG_PRINT((ACPI_DB_INFO, - "System-Memory (width %d) R/W %d Address=%8.8X%8.8X\n", - bit_width, function, - ACPI_FORMAT_NATIVE_UINT(address))); - - /* - * Perform the memory read or write - * - * Note: For machines that do not support non-aligned transfers, the target - * address was checked for alignment above. We do not attempt to break the - * transfer up into smaller (byte-size) chunks because the AML specifically - * asked for a transfer width that the hardware may require. - */ - switch (function) { - case ACPI_READ: - - *value = 0; - switch (bit_width) { - case 8: - *value = (acpi_integer) ACPI_GET8(logical_addr_ptr); - break; - - case 16: - *value = (acpi_integer) ACPI_GET16(logical_addr_ptr); - break; - - case 32: - *value = (acpi_integer) ACPI_GET32(logical_addr_ptr); - break; - - case 64: - *value = (acpi_integer) ACPI_GET64(logical_addr_ptr); - break; - - default: - /* bit_width was already validated */ - break; - } - break; - - case ACPI_WRITE: - - switch (bit_width) { - case 8: - ACPI_SET8(logical_addr_ptr) = (u8) * value; - break; - - case 16: - ACPI_SET16(logical_addr_ptr) = (u16) * value; - break; - - case 32: - ACPI_SET32(logical_addr_ptr) = (u32) * value; - break; - - case 64: - ACPI_SET64(logical_addr_ptr) = (u64) * value; - break; - - default: - /* bit_width was already validated */ - break; - } - break; - - default: - status = AE_BAD_PARAMETER; - break; - } - - return_ACPI_STATUS(status); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ex_system_io_space_handler - * - * PARAMETERS: Function - Read or Write operation - * Address - Where in the space to read or write - * bit_width - Field width in bits (8, 16, or 32) - * Value - Pointer to in or out value - * handler_context - Pointer to Handler's context - * region_context - Pointer to context specific to the - * accessed region - * - * RETURN: Status - * - * DESCRIPTION: Handler for the System IO address space (Op Region) - * - ******************************************************************************/ - -acpi_status -acpi_ex_system_io_space_handler(u32 function, - acpi_physical_address address, - u32 bit_width, - acpi_integer * value, - void *handler_context, void *region_context) -{ - acpi_status status = AE_OK; - u32 value32; - - ACPI_FUNCTION_TRACE(ex_system_io_space_handler); - - ACPI_DEBUG_PRINT((ACPI_DB_INFO, - "System-IO (width %d) R/W %d Address=%8.8X%8.8X\n", - bit_width, function, - ACPI_FORMAT_NATIVE_UINT(address))); - - /* Decode the function parameter */ - - switch (function) { - case ACPI_READ: - - status = acpi_os_read_port((acpi_io_address) address, - &value32, bit_width); - *value = value32; - break; - - case ACPI_WRITE: - - status = acpi_os_write_port((acpi_io_address) address, - (u32) * value, bit_width); - break; - - default: - status = AE_BAD_PARAMETER; - break; - } - - return_ACPI_STATUS(status); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ex_pci_config_space_handler - * - * PARAMETERS: Function - Read or Write operation - * Address - Where in the space to read or write - * bit_width - Field width in bits (8, 16, or 32) - * Value - Pointer to in or out value - * handler_context - Pointer to Handler's context - * region_context - Pointer to context specific to the - * accessed region - * - * RETURN: Status - * - * DESCRIPTION: Handler for the PCI Config address space (Op Region) - * - ******************************************************************************/ - -acpi_status -acpi_ex_pci_config_space_handler(u32 function, - acpi_physical_address address, - u32 bit_width, - acpi_integer * value, - void *handler_context, void *region_context) -{ - acpi_status status = AE_OK; - struct acpi_pci_id *pci_id; - u16 pci_register; - u32 value32; - - ACPI_FUNCTION_TRACE(ex_pci_config_space_handler); - - /* - * The arguments to acpi_os(Read|Write)pci_configuration are: - * - * pci_segment is the PCI bus segment range 0-31 - * pci_bus is the PCI bus number range 0-255 - * pci_device is the PCI device number range 0-31 - * pci_function is the PCI device function number - * pci_register is the Config space register range 0-255 bytes - * - * Value - input value for write, output address for read - * - */ - pci_id = (struct acpi_pci_id *)region_context; - pci_register = (u16) (u32) address; - - ACPI_DEBUG_PRINT((ACPI_DB_INFO, - "Pci-Config %d (%d) Seg(%04x) Bus(%04x) Dev(%04x) Func(%04x) Reg(%04x)\n", - function, bit_width, pci_id->segment, pci_id->bus, - pci_id->device, pci_id->function, pci_register)); - - switch (function) { - case ACPI_READ: - - status = acpi_os_read_pci_configuration(pci_id, pci_register, - &value32, bit_width); - *value = value32; - break; - - case ACPI_WRITE: - - status = acpi_os_write_pci_configuration(pci_id, pci_register, - *value, bit_width); - break; - - default: - - status = AE_BAD_PARAMETER; - break; - } - - return_ACPI_STATUS(status); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ex_cmos_space_handler - * - * PARAMETERS: Function - Read or Write operation - * Address - Where in the space to read or write - * bit_width - Field width in bits (8, 16, or 32) - * Value - Pointer to in or out value - * handler_context - Pointer to Handler's context - * region_context - Pointer to context specific to the - * accessed region - * - * RETURN: Status - * - * DESCRIPTION: Handler for the CMOS address space (Op Region) - * - ******************************************************************************/ - -acpi_status -acpi_ex_cmos_space_handler(u32 function, - acpi_physical_address address, - u32 bit_width, - acpi_integer * value, - void *handler_context, void *region_context) -{ - acpi_status status = AE_OK; - - ACPI_FUNCTION_TRACE(ex_cmos_space_handler); - - return_ACPI_STATUS(status); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ex_pci_bar_space_handler - * - * PARAMETERS: Function - Read or Write operation - * Address - Where in the space to read or write - * bit_width - Field width in bits (8, 16, or 32) - * Value - Pointer to in or out value - * handler_context - Pointer to Handler's context - * region_context - Pointer to context specific to the - * accessed region - * - * RETURN: Status - * - * DESCRIPTION: Handler for the PCI bar_target address space (Op Region) - * - ******************************************************************************/ - -acpi_status -acpi_ex_pci_bar_space_handler(u32 function, - acpi_physical_address address, - u32 bit_width, - acpi_integer * value, - void *handler_context, void *region_context) -{ - acpi_status status = AE_OK; - - ACPI_FUNCTION_TRACE(ex_pci_bar_space_handler); - - return_ACPI_STATUS(status); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ex_data_table_space_handler - * - * PARAMETERS: Function - Read or Write operation - * Address - Where in the space to read or write - * bit_width - Field width in bits (8, 16, or 32) - * Value - Pointer to in or out value - * handler_context - Pointer to Handler's context - * region_context - Pointer to context specific to the - * accessed region - * - * RETURN: Status - * - * DESCRIPTION: Handler for the Data Table address space (Op Region) - * - ******************************************************************************/ - -acpi_status -acpi_ex_data_table_space_handler(u32 function, - acpi_physical_address address, - u32 bit_width, - acpi_integer * value, - void *handler_context, void *region_context) -{ - ACPI_FUNCTION_TRACE(ex_data_table_space_handler); - - /* Perform the memory read or write */ - - switch (function) { - case ACPI_READ: - - ACPI_MEMCPY(ACPI_CAST_PTR(char, value), - ACPI_PHYSADDR_TO_PTR(address), - ACPI_DIV_8(bit_width)); - break; - - case ACPI_WRITE: - default: - - return_ACPI_STATUS(AE_SUPPORT); - } - - return_ACPI_STATUS(AE_OK); -} |