diff options
Diffstat (limited to 'drivers/acpi/executer/exregion.c')
| -rw-r--r-- | drivers/acpi/executer/exregion.c | 280 |
1 files changed, 125 insertions, 155 deletions
diff --git a/drivers/acpi/executer/exregion.c b/drivers/acpi/executer/exregion.c index 723aaef..9a2f5be 100644 --- a/drivers/acpi/executer/exregion.c +++ b/drivers/acpi/executer/exregion.c @@ -42,14 +42,11 @@ * POSSIBILITY OF SUCH DAMAGES. */ - #include <acpi/acpi.h> #include <acpi/acinterp.h> - #define _COMPONENT ACPI_EXECUTER - ACPI_MODULE_NAME ("exregion") - +ACPI_MODULE_NAME("exregion") /******************************************************************************* * @@ -68,27 +65,23 @@ * 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_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; + 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; #ifndef ACPI_MISALIGNED_TRANSFERS - u32 remainder; + u32 remainder; #endif - ACPI_FUNCTION_TRACE ("ex_system_memory_space_handler"); - + ACPI_FUNCTION_TRACE("ex_system_memory_space_handler"); /* Validate and translate the bit width */ @@ -110,9 +103,10 @@ acpi_ex_system_memory_space_handler ( break; default: - ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "Invalid system_memory width %d\n", - bit_width)); - return_ACPI_STATUS (AE_AML_OPERAND_VALUE); + ACPI_DEBUG_PRINT((ACPI_DB_ERROR, + "Invalid system_memory width %d\n", + bit_width)); + return_ACPI_STATUS(AE_AML_OPERAND_VALUE); } #ifndef ACPI_MISALIGNED_TRANSFERS @@ -120,9 +114,10 @@ acpi_ex_system_memory_space_handler ( * Hardware does not support non-aligned data transfers, we must verify * the request. */ - (void) acpi_ut_short_divide ((acpi_integer) address, length, NULL, &remainder); + (void)acpi_ut_short_divide((acpi_integer) address, length, NULL, + &remainder); if (remainder != 0) { - return_ACPI_STATUS (AE_AML_ALIGNMENT); + return_ACPI_STATUS(AE_AML_ALIGNMENT); } #endif @@ -132,9 +127,10 @@ acpi_ex_system_memory_space_handler ( * 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))) { + (((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. @@ -142,8 +138,8 @@ acpi_ex_system_memory_space_handler ( if (mem_info->mapped_length) { /* Valid mapping, delete it */ - acpi_os_unmap_memory (mem_info->mapped_logical_address, - mem_info->mapped_length); + acpi_os_unmap_memory(mem_info->mapped_logical_address, + mem_info->mapped_length); } /* @@ -151,7 +147,7 @@ acpi_ex_system_memory_space_handler ( * constrain the maximum mapping size to something reasonable. */ window_size = (acpi_size) - ((mem_info->address + mem_info->length) - address); + ((mem_info->address + mem_info->length) - address); if (window_size > ACPI_SYSMEM_REGION_WINDOW_SIZE) { window_size = ACPI_SYSMEM_REGION_WINDOW_SIZE; @@ -159,14 +155,16 @@ acpi_ex_system_memory_space_handler ( /* Create a new mapping starting at the address given */ - status = acpi_os_map_memory (address, window_size, - (void **) &mem_info->mapped_logical_address); - if (ACPI_FAILURE (status)) { - ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, - "Could not map memory at %8.8X%8.8X, size %X\n", - ACPI_FORMAT_UINT64 (address), (u32) window_size)); + status = acpi_os_map_memory(address, window_size, + (void **)&mem_info-> + mapped_logical_address); + if (ACPI_FAILURE(status)) { + ACPI_DEBUG_PRINT((ACPI_DB_ERROR, + "Could not map memory at %8.8X%8.8X, size %X\n", + ACPI_FORMAT_UINT64(address), + (u32) window_size)); mem_info->mapped_length = 0; - return_ACPI_STATUS (status); + return_ACPI_STATUS(status); } /* Save the physical address and mapping size */ @@ -180,42 +178,41 @@ acpi_ex_system_memory_space_handler ( * 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 %d (%d width) Address=%8.8X%8.8X\n", - function, bit_width, - ACPI_FORMAT_UINT64 (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. - */ + ((acpi_integer) address - + (acpi_integer) mem_info->mapped_physical_address); + + ACPI_DEBUG_PRINT((ACPI_DB_INFO, + "system_memory %d (%d width) Address=%8.8X%8.8X\n", + function, bit_width, ACPI_FORMAT_UINT64(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) *((u8 *) logical_addr_ptr); + *value = (acpi_integer) * ((u8 *) logical_addr_ptr); break; case 16: - *value = (acpi_integer) *((u16 *) logical_addr_ptr); + *value = (acpi_integer) * ((u16 *) logical_addr_ptr); break; case 32: - *value = (acpi_integer) *((u32 *) logical_addr_ptr); + *value = (acpi_integer) * ((u32 *) logical_addr_ptr); break; #if ACPI_MACHINE_WIDTH != 16 case 64: - *value = (acpi_integer) *((u64 *) logical_addr_ptr); + *value = (acpi_integer) * ((u64 *) logical_addr_ptr); break; #endif default: @@ -228,20 +225,20 @@ acpi_ex_system_memory_space_handler ( switch (bit_width) { case 8: - *(u8 *) logical_addr_ptr = (u8) *value; + *(u8 *) logical_addr_ptr = (u8) * value; break; case 16: - *(u16 *) logical_addr_ptr = (u16) *value; + *(u16 *) logical_addr_ptr = (u16) * value; break; case 32: - *(u32 *) logical_addr_ptr = (u32) *value; + *(u32 *) logical_addr_ptr = (u32) * value; break; #if ACPI_MACHINE_WIDTH != 16 case 64: - *(u64 *) logical_addr_ptr = (u64) *value; + *(u64 *) logical_addr_ptr = (u64) * value; break; #endif @@ -256,10 +253,9 @@ acpi_ex_system_memory_space_handler ( break; } - return_ACPI_STATUS (status); + return_ACPI_STATUS(status); } - /******************************************************************************* * * FUNCTION: acpi_ex_system_io_space_handler @@ -279,39 +275,35 @@ acpi_ex_system_memory_space_handler ( ******************************************************************************/ 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_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_status status = AE_OK; + u32 value32; + ACPI_FUNCTION_TRACE("ex_system_io_space_handler"); - ACPI_FUNCTION_TRACE ("ex_system_io_space_handler"); - - - ACPI_DEBUG_PRINT ((ACPI_DB_INFO, - "system_iO %d (%d width) Address=%8.8X%8.8X\n", function, bit_width, - ACPI_FORMAT_UINT64 (address))); + ACPI_DEBUG_PRINT((ACPI_DB_INFO, + "system_iO %d (%d width) Address=%8.8X%8.8X\n", + function, bit_width, ACPI_FORMAT_UINT64(address))); /* Decode the function parameter */ switch (function) { case ACPI_READ: - status = acpi_os_read_port ((acpi_io_address) address, - &value32, bit_width); + 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); + status = acpi_os_write_port((acpi_io_address) address, + (u32) * value, bit_width); break; default: @@ -319,10 +311,9 @@ acpi_ex_system_io_space_handler ( break; } - return_ACPI_STATUS (status); + return_ACPI_STATUS(status); } - /******************************************************************************* * * FUNCTION: acpi_ex_pci_config_space_handler @@ -342,21 +333,17 @@ acpi_ex_system_io_space_handler ( ******************************************************************************/ 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_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; - - - ACPI_FUNCTION_TRACE ("ex_pci_config_space_handler"); + acpi_status status = AE_OK; + struct acpi_pci_id *pci_id; + u16 pci_register; + ACPI_FUNCTION_TRACE("ex_pci_config_space_handler"); /* * The arguments to acpi_os(Read|Write)pci_configuration are: @@ -370,26 +357,26 @@ acpi_ex_pci_config_space_handler ( * Value - input value for write, output address for read * */ - pci_id = (struct acpi_pci_id *) region_context; + 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)); + 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: *value = 0; - status = acpi_os_read_pci_configuration (pci_id, pci_register, - value, bit_width); + status = acpi_os_read_pci_configuration(pci_id, pci_register, + value, bit_width); break; case ACPI_WRITE: - status = acpi_os_write_pci_configuration (pci_id, pci_register, - *value, bit_width); + status = acpi_os_write_pci_configuration(pci_id, pci_register, + *value, bit_width); break; default: @@ -398,10 +385,9 @@ acpi_ex_pci_config_space_handler ( break; } - return_ACPI_STATUS (status); + return_ACPI_STATUS(status); } - /******************************************************************************* * * FUNCTION: acpi_ex_cmos_space_handler @@ -421,24 +407,19 @@ acpi_ex_pci_config_space_handler ( ******************************************************************************/ 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_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_status status = AE_OK; - ACPI_FUNCTION_TRACE ("ex_cmos_space_handler"); + ACPI_FUNCTION_TRACE("ex_cmos_space_handler"); - - return_ACPI_STATUS (status); + return_ACPI_STATUS(status); } - /******************************************************************************* * * FUNCTION: acpi_ex_pci_bar_space_handler @@ -458,24 +439,19 @@ acpi_ex_cmos_space_handler ( ******************************************************************************/ 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_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_status status = AE_OK; - ACPI_FUNCTION_TRACE ("ex_pci_bar_space_handler"); + ACPI_FUNCTION_TRACE("ex_pci_bar_space_handler"); - - return_ACPI_STATUS (status); + return_ACPI_STATUS(status); } - /******************************************************************************* * * FUNCTION: acpi_ex_data_table_space_handler @@ -495,24 +471,20 @@ acpi_ex_pci_bar_space_handler ( ******************************************************************************/ 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_ex_data_table_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 byte_width = ACPI_DIV_8 (bit_width); - u32 i; - char *logical_addr_ptr; - + acpi_status status = AE_OK; + u32 byte_width = ACPI_DIV_8(bit_width); + u32 i; + char *logical_addr_ptr; - ACPI_FUNCTION_TRACE ("ex_data_table_space_handler"); + ACPI_FUNCTION_TRACE("ex_data_table_space_handler"); - - logical_addr_ptr = ACPI_PHYSADDR_TO_PTR (address); + logical_addr_ptr = ACPI_PHYSADDR_TO_PTR(address); /* Perform the memory read or write */ @@ -520,17 +492,15 @@ acpi_ex_data_table_space_handler ( case ACPI_READ: for (i = 0; i < byte_width; i++) { - ((char *) value) [i] = logical_addr_ptr[i]; + ((char *)value)[i] = logical_addr_ptr[i]; } break; case ACPI_WRITE: default: - return_ACPI_STATUS (AE_SUPPORT); + return_ACPI_STATUS(AE_SUPPORT); } - return_ACPI_STATUS (status); + return_ACPI_STATUS(status); } - - |