From 95b482a8d31116f3f5c2a5089569393234d06385 Mon Sep 17 00:00:00 2001 From: Len Brown Date: Fri, 9 Jan 2009 00:13:17 -0500 Subject: ACPICA: create acpica/ directory also, delete sleep/ and delete ACPI_CFLAGS from Makefile Signed-off-by: Len Brown --- drivers/acpi/acpica/exregion.c | 499 +++++++++++++++++++++++++++++++++++++++++ 1 file changed, 499 insertions(+) create mode 100644 drivers/acpi/acpica/exregion.c (limited to 'drivers/acpi/acpica/exregion.c') diff --git a/drivers/acpi/acpica/exregion.c b/drivers/acpi/acpica/exregion.c new file mode 100644 index 000000000000..ceb269e45aba --- /dev/null +++ b/drivers/acpi/acpica/exregion.c @@ -0,0 +1,499 @@ + +/****************************************************************************** + * + * 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 +#include +#include + +#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); +} -- cgit v1.2.3