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[/] [test_project/] [trunk/] [linux_sd_driver/] [drivers/] [acpi/] [executer/] [exregion.c] - Blame information for rev 62

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/******************************************************************************
 *
 * Module Name: exregion - ACPI default op_region (address space) handlers
 *
 *****************************************************************************/
 
/*
 * Copyright (C) 2000 - 2007, R. Byron Moore
 * 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/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_native_uint) 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_UINT64(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_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) 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_UINT64(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;
 
        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:
 
                *value = 0;
                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);
                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);
}

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[/] [test_project/] [trunk/] [linux_sd_driver/] [drivers/] [acpi/] [executer/] [exregion.c] - Blame information for rev 62

Line No.	Rev	Author	Line
1	62	marcus.erl
2			`/******************************************************************************`
3			`*`
4			`* Module Name: exregion - ACPI default op_region (address space) handlers`
5			`*`
6			`*****************************************************************************/`
7
8			`/*`
9			`* Copyright (C) 2000 - 2007, R. Byron Moore`
10			`* All rights reserved.`
11			`*`
12			`* Redistribution and use in source and binary forms, with or without`
13			`* modification, are permitted provided that the following conditions`
14			`* are met:`
15			`* 1. Redistributions of source code must retain the above copyright`
16			`* notice, this list of conditions, and the following disclaimer,`
17			`* without modification.`
18			`* 2. Redistributions in binary form must reproduce at minimum a disclaimer`
19			`* substantially similar to the "NO WARRANTY" disclaimer below`
20			`* ("Disclaimer") and any redistribution must be conditioned upon`
21			`* including a substantially similar Disclaimer requirement for further`
22			`* binary redistribution.`
23			`* 3. Neither the names of the above-listed copyright holders nor the names`
24			`* of any contributors may be used to endorse or promote products derived`
25			`* from this software without specific prior written permission.`
26			`*`
27			`* Alternatively, this software may be distributed under the terms of the`
28			`* GNU General Public License ("GPL") version 2 as published by the Free`
29			`* Software Foundation.`
30			`*`
31			`* NO WARRANTY`
32			`* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS`
33			`* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT`
34			`* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR`
35			`* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT`
36			`* HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL`
37			`* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS`
38			`* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)`
39			`* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,`
40			`* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING`
41			`* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE`
42			`* POSSIBILITY OF SUCH DAMAGES.`
43			`*/`
44
45			`#include <acpi/acpi.h>`
46			`#include <acpi/acinterp.h>`
47
48			`#define _COMPONENT ACPI_EXECUTER`
49			`ACPI_MODULE_NAME("exregion")`
50
51			`/*******************************************************************************`
52			`*`
53			`* FUNCTION: acpi_ex_system_memory_space_handler`
54			`*`
55			`* PARAMETERS: Function - Read or Write operation`
56			`* Address - Where in the space to read or write`
57			`* bit_width - Field width in bits (8, 16, or 32)`
58			`* Value - Pointer to in or out value`
59			`* handler_context - Pointer to Handler's context`
60			`* region_context - Pointer to context specific to the`
61			`* accessed region`
62			`*`
63			`* RETURN: Status`
64			`*`
65			`* DESCRIPTION: Handler for the System Memory address space (Op Region)`
66			`*`
67			`******************************************************************************/`
68			`acpi_status`
69			`acpi_ex_system_memory_space_handler(u32 function,`
70			`acpi_physical_address address,`
71			`u32 bit_width,`
72			`acpi_integer * value,`
73			`void handler_context, void region_context)`
74			`{`
75			`acpi_status status = AE_OK;`
76			`void *logical_addr_ptr = NULL;`
77			`struct acpi_mem_space_context *mem_info = region_context;`
78			`u32 length;`
79			`acpi_size window_size;`
80			`#ifdef ACPI_MISALIGNMENT_NOT_SUPPORTED`
81			`u32 remainder;`
82			`#endif`
83
84			`ACPI_FUNCTION_TRACE(ex_system_memory_space_handler);`
85
86			`/* Validate and translate the bit width */`
87
88			`switch (bit_width) {`
89			`case 8:`
90			`length = 1;`
91			`break;`
92
93			`case 16:`
94			`length = 2;`
95			`break;`
96
97			`case 32:`
98			`length = 4;`
99			`break;`
100
101			`case 64:`
102			`length = 8;`
103			`break;`
104
105			`default:`
106			`ACPI_ERROR((AE_INFO, "Invalid SystemMemory width %d",`
107			`bit_width));`
108			`return_ACPI_STATUS(AE_AML_OPERAND_VALUE);`
109			`}`
110
111			`#ifdef ACPI_MISALIGNMENT_NOT_SUPPORTED`
112			`/*`
113			`* Hardware does not support non-aligned data transfers, we must verify`
114			`* the request.`
115			`*/`
116			`(void)acpi_ut_short_divide((acpi_integer) address, length, NULL,`
117			`&remainder);`
118			`if (remainder != 0) {`
119			`return_ACPI_STATUS(AE_AML_ALIGNMENT);`
120			`}`
121			`#endif`
122
123			`/*`
124			`* Does the request fit into the cached memory mapping?`
125			`* Is 1) Address below the current mapping? OR`
126			`* 2) Address beyond the current mapping?`
127			`*/`
128			`if ((address < mem_info->mapped_physical_address) \|\|`
129			`(((acpi_integer) address + length) > ((acpi_integer)`
130			`mem_info->`
131			`mapped_physical_address +`
132			`mem_info->mapped_length))) {`
133			`/*`
134			`* The request cannot be resolved by the current memory mapping;`
135			`* Delete the existing mapping and create a new one.`
136			`*/`
137			`if (mem_info->mapped_length) {`
138
139			`/* Valid mapping, delete it */`
140
141			`acpi_os_unmap_memory(mem_info->mapped_logical_address,`
142			`mem_info->mapped_length);`
143			`}`
144
145			`/*`
146			`* Don't attempt to map memory beyond the end of the region, and`
147			`* constrain the maximum mapping size to something reasonable.`
148			`*/`
149			`window_size = (acpi_size)`
150			`((mem_info->address + mem_info->length) - address);`
151
152			`if (window_size > ACPI_SYSMEM_REGION_WINDOW_SIZE) {`
153			`window_size = ACPI_SYSMEM_REGION_WINDOW_SIZE;`
154			`}`
155
156			`/* Create a new mapping starting at the address given */`
157
158			`mem_info->mapped_logical_address =`
159			`acpi_os_map_memory((acpi_native_uint) address, window_size);`
160			`if (!mem_info->mapped_logical_address) {`
161			`ACPI_ERROR((AE_INFO,`
162			`"Could not map memory at %8.8X%8.8X, size %X",`
163			`ACPI_FORMAT_UINT64(address),`
164			`(u32) window_size));`
165			`mem_info->mapped_length = 0;`
166			`return_ACPI_STATUS(AE_NO_MEMORY);`
167			`}`
168
169			`/* Save the physical address and mapping size */`
170
171			`mem_info->mapped_physical_address = address;`
172			`mem_info->mapped_length = window_size;`
173			`}`
174
175			`/*`
176			`* Generate a logical pointer corresponding to the address we want to`
177			`* access`
178			`*/`
179			`logical_addr_ptr = mem_info->mapped_logical_address +`
180			`((acpi_integer) address -`
181			`(acpi_integer) mem_info->mapped_physical_address);`
182
183			`ACPI_DEBUG_PRINT((ACPI_DB_INFO,`
184			`"System-Memory (width %d) R/W %d Address=%8.8X%8.8X\n",`
185			`bit_width, function, ACPI_FORMAT_UINT64(address)));`
186
187			`/*`
188			`* Perform the memory read or write`
189			`*`
190			`* Note: For machines that do not support non-aligned transfers, the target`
191			`* address was checked for alignment above. We do not attempt to break the`
192			`* transfer up into smaller (byte-size) chunks because the AML specifically`
193			`* asked for a transfer width that the hardware may require.`
194			`*/`
195			`switch (function) {`
196			`case ACPI_READ:`
197
198			`*value = 0;`
199			`switch (bit_width) {`
200			`case 8:`
201			`*value = (acpi_integer) ACPI_GET8(logical_addr_ptr);`
202			`break;`
203
204			`case 16:`
205			`*value = (acpi_integer) ACPI_GET16(logical_addr_ptr);`
206			`break;`
207
208			`case 32:`
209			`*value = (acpi_integer) ACPI_GET32(logical_addr_ptr);`
210			`break;`
211
212			`case 64:`
213			`*value = (acpi_integer) ACPI_GET64(logical_addr_ptr);`
214			`break;`
215
216			`default:`
217			`/* bit_width was already validated */`
218			`break;`
219			`}`
220			`break;`
221
222			`case ACPI_WRITE:`
223
224			`switch (bit_width) {`
225			`case 8:`
226			`ACPI_SET8(logical_addr_ptr) = (u8) * value;`
227			`break;`
228
229			`case 16:`
230			`ACPI_SET16(logical_addr_ptr) = (u16) * value;`
231			`break;`
232
233			`case 32:`
234			`ACPI_SET32(logical_addr_ptr) = (u32) * value;`
235			`break;`
236
237			`case 64:`
238			`ACPI_SET64(logical_addr_ptr) = (u64) * value;`
239			`break;`
240
241			`default:`
242			`/* bit_width was already validated */`
243			`break;`
244			`}`
245			`break;`
246
247			`default:`
248			`status = AE_BAD_PARAMETER;`
249			`break;`
250			`}`
251
252			`return_ACPI_STATUS(status);`
253			`}`
254
255			`/*******************************************************************************`
256			`*`
257			`* FUNCTION: acpi_ex_system_io_space_handler`
258			`*`
259			`* PARAMETERS: Function - Read or Write operation`
260			`* Address - Where in the space to read or write`
261			`* bit_width - Field width in bits (8, 16, or 32)`
262			`* Value - Pointer to in or out value`
263			`* handler_context - Pointer to Handler's context`
264			`* region_context - Pointer to context specific to the`
265			`* accessed region`
266			`*`
267			`* RETURN: Status`
268			`*`
269			`* DESCRIPTION: Handler for the System IO address space (Op Region)`
270			`*`
271			`******************************************************************************/`
272
273			`acpi_status`
274			`acpi_ex_system_io_space_handler(u32 function,`
275			`acpi_physical_address address,`
276			`u32 bit_width,`
277			`acpi_integer * value,`
278			`void handler_context, void region_context)`
279			`{`
280			`acpi_status status = AE_OK;`
281			`u32 value32;`
282
283			`ACPI_FUNCTION_TRACE(ex_system_io_space_handler);`
284
285			`ACPI_DEBUG_PRINT((ACPI_DB_INFO,`
286			`"System-IO (width %d) R/W %d Address=%8.8X%8.8X\n",`
287			`bit_width, function, ACPI_FORMAT_UINT64(address)));`
288
289			`/* Decode the function parameter */`
290
291			`switch (function) {`
292			`case ACPI_READ:`
293
294			`status = acpi_os_read_port((acpi_io_address) address,`
295			`&value32, bit_width);`
296			`*value = value32;`
297			`break;`
298
299			`case ACPI_WRITE:`
300
301			`status = acpi_os_write_port((acpi_io_address) address,`
302			`(u32) * value, bit_width);`
303			`break;`
304
305			`default:`
306			`status = AE_BAD_PARAMETER;`
307			`break;`
308			`}`
309
310			`return_ACPI_STATUS(status);`
311			`}`
312
313			`/*******************************************************************************`
314			`*`
315			`* FUNCTION: acpi_ex_pci_config_space_handler`
316			`*`
317			`* PARAMETERS: Function - Read or Write operation`
318			`* Address - Where in the space to read or write`
319			`* bit_width - Field width in bits (8, 16, or 32)`
320			`* Value - Pointer to in or out value`
321			`* handler_context - Pointer to Handler's context`
322			`* region_context - Pointer to context specific to the`
323			`* accessed region`
324			`*`
325			`* RETURN: Status`
326			`*`
327			`* DESCRIPTION: Handler for the PCI Config address space (Op Region)`
328			`*`
329			`******************************************************************************/`
330
331			`acpi_status`
332			`acpi_ex_pci_config_space_handler(u32 function,`
333			`acpi_physical_address address,`
334			`u32 bit_width,`
335			`acpi_integer * value,`
336			`void handler_context, void region_context)`
337			`{`
338			`acpi_status status = AE_OK;`
339			`struct acpi_pci_id *pci_id;`
340			`u16 pci_register;`
341
342			`ACPI_FUNCTION_TRACE(ex_pci_config_space_handler);`
343
344			`/*`
345			`* The arguments to acpi_os(Read\|Write)pci_configuration are:`
346			`*`
347			`* pci_segment is the PCI bus segment range 0-31`
348			`* pci_bus is the PCI bus number range 0-255`
349			`* pci_device is the PCI device number range 0-31`
350			`* pci_function is the PCI device function number`
351			`* pci_register is the Config space register range 0-255 bytes`
352			`*`
353			`* Value - input value for write, output address for read`
354			`*`
355			`*/`
356			`pci_id = (struct acpi_pci_id *)region_context;`
357			`pci_register = (u16) (u32) address;`
358
359			`ACPI_DEBUG_PRINT((ACPI_DB_INFO,`
360			`"Pci-Config %d (%d) Seg(%04x) Bus(%04x) Dev(%04x) Func(%04x) Reg(%04x)\n",`
361			`function, bit_width, pci_id->segment, pci_id->bus,`
362			`pci_id->device, pci_id->function, pci_register));`
363
364			`switch (function) {`
365			`case ACPI_READ:`
366
367			`*value = 0;`
368			`status = acpi_os_read_pci_configuration(pci_id, pci_register,`
369			`value, bit_width);`
370			`break;`
371
372			`case ACPI_WRITE:`
373
374			`status = acpi_os_write_pci_configuration(pci_id, pci_register,`
375			`*value, bit_width);`
376			`break;`
377
378			`default:`
379
380			`status = AE_BAD_PARAMETER;`
381			`break;`
382			`}`
383
384			`return_ACPI_STATUS(status);`
385			`}`
386
387			`/*******************************************************************************`
388			`*`
389			`* FUNCTION: acpi_ex_cmos_space_handler`
390			`*`
391			`* PARAMETERS: Function - Read or Write operation`
392			`* Address - Where in the space to read or write`
393			`* bit_width - Field width in bits (8, 16, or 32)`
394			`* Value - Pointer to in or out value`
395			`* handler_context - Pointer to Handler's context`
396			`* region_context - Pointer to context specific to the`
397			`* accessed region`
398			`*`
399			`* RETURN: Status`
400			`*`
401			`* DESCRIPTION: Handler for the CMOS address space (Op Region)`
402			`*`
403			`******************************************************************************/`
404
405			`acpi_status`
406			`acpi_ex_cmos_space_handler(u32 function,`
407			`acpi_physical_address address,`
408			`u32 bit_width,`
409			`acpi_integer * value,`
410			`void handler_context, void region_context)`
411			`{`
412			`acpi_status status = AE_OK;`
413
414			`ACPI_FUNCTION_TRACE(ex_cmos_space_handler);`
415
416			`return_ACPI_STATUS(status);`
417			`}`
418
419			`/*******************************************************************************`
420			`*`
421			`* FUNCTION: acpi_ex_pci_bar_space_handler`
422			`*`
423			`* PARAMETERS: Function - Read or Write operation`
424			`* Address - Where in the space to read or write`
425			`* bit_width - Field width in bits (8, 16, or 32)`
426			`* Value - Pointer to in or out value`
427			`* handler_context - Pointer to Handler's context`
428			`* region_context - Pointer to context specific to the`
429			`* accessed region`
430			`*`
431			`* RETURN: Status`
432			`*`
433			`* DESCRIPTION: Handler for the PCI bar_target address space (Op Region)`
434			`*`
435			`******************************************************************************/`
436
437			`acpi_status`
438			`acpi_ex_pci_bar_space_handler(u32 function,`
439			`acpi_physical_address address,`
440			`u32 bit_width,`
441			`acpi_integer * value,`
442			`void handler_context, void region_context)`
443			`{`
444			`acpi_status status = AE_OK;`
445
446			`ACPI_FUNCTION_TRACE(ex_pci_bar_space_handler);`
447
448			`return_ACPI_STATUS(status);`
449			`}`
450
451			`/*******************************************************************************`
452			`*`
453			`* FUNCTION: acpi_ex_data_table_space_handler`
454			`*`
455			`* PARAMETERS: Function - Read or Write operation`
456			`* Address - Where in the space to read or write`
457			`* bit_width - Field width in bits (8, 16, or 32)`
458			`* Value - Pointer to in or out value`
459			`* handler_context - Pointer to Handler's context`
460			`* region_context - Pointer to context specific to the`
461			`* accessed region`
462			`*`
463			`* RETURN: Status`
464			`*`
465			`* DESCRIPTION: Handler for the Data Table address space (Op Region)`
466			`*`
467			`******************************************************************************/`
468
469			`acpi_status`
470			`acpi_ex_data_table_space_handler(u32 function,`
471			`acpi_physical_address address,`
472			`u32 bit_width,`
473			`acpi_integer * value,`
474			`void handler_context, void region_context)`
475			`{`
476			`ACPI_FUNCTION_TRACE(ex_data_table_space_handler);`
477
478			`/* Perform the memory read or write */`
479
480			`switch (function) {`
481			`case ACPI_READ:`
482
483			`ACPI_MEMCPY(ACPI_CAST_PTR(char, value),`
484			`ACPI_PHYSADDR_TO_PTR(address),`
485			`ACPI_DIV_8(bit_width));`
486			`break;`
487
488			`case ACPI_WRITE:`
489			`default:`
490
491			`return_ACPI_STATUS(AE_SUPPORT);`
492			`}`
493
494			`return_ACPI_STATUS(AE_OK);`
495			`}`