[mirror_edk2.git] / IntelFrameworkModulePkg / Bus / Isa / IsaBusDxe / InternalIsaBus.h

/**@file\r
  The header file for ISA bus driver\r
  \r
Copyright (c) 2006 - 2007, Intel Corporation. <BR>\r
All rights reserved. This program and the accompanying materials\r
are licensed and made available under the terms and conditions of the BSD License\r
which accompanies this distribution.  The full text of the license may be found at\r
http://opensource.org/licenses/bsd-license.php\r
\r
THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
\r
**/\r
\r
#ifndef _EFI_ISA_BUS_H\r
#define _EFI_ISA_BUS_H\r
\r
\r
#include <PiDxe.h>\r
#include <FrameworkDxe.h>\r
\r
#include <Protocol/PciIo.h>\r
#include <Protocol/ComponentName.h>\r
#include <Protocol/IsaIo.h>\r
#include <Protocol/DevicePath.h>\r
#include <Protocol/IsaAcpi.h>\r
#include <Protocol/DriverBinding.h>\r
#include <Protocol/GenericMemoryTest.h>\r
#include <Guid/StatusCodeDataTypeId.h>\r
\r
#include <Library/DebugLib.h>\r
#include <Library/UefiDriverEntryPoint.h>\r
#include <Library/UefiLib.h>\r
#include <Library/DevicePathLib.h>\r
#include <Library/BaseMemoryLib.h>\r
#include <Library/MemoryAllocationLib.h>\r
#include <Library/UefiBootServicesTableLib.h>\r
#include <Library/ReportStatusCodeLib.h>\r
#include <Library/PcdLib.h>\r
\r
#include "ComponentName.h"\r
\r
//\r
// 8237 DMA registers\r
//\r
#define R_8237_DMA_BASE_CA_CH0                    0x00\r
#define R_8237_DMA_BASE_CA_CH1                    0x02\r
#define R_8237_DMA_BASE_CA_CH2                    0x04\r
#define R_8237_DMA_BASE_CA_CH3                    0xd6\r
#define R_8237_DMA_BASE_CA_CH5                    0xc4\r
#define R_8237_DMA_BASE_CA_CH6                    0xc8\r
#define R_8237_DMA_BASE_CA_CH7                    0xcc\r
\r
#define R_8237_DMA_BASE_CC_CH0                    0x01\r
#define R_8237_DMA_BASE_CC_CH1                    0x03\r
#define R_8237_DMA_BASE_CC_CH2                    0x05\r
#define R_8237_DMA_BASE_CC_CH3                    0xd7\r
#define R_8237_DMA_BASE_CC_CH5                    0xc6\r
#define R_8237_DMA_BASE_CC_CH6                    0xca\r
#define R_8237_DMA_BASE_CC_CH7                    0xce\r
\r
#define R_8237_DMA_MEM_LP_CH0                     0x87\r
#define R_8237_DMA_MEM_LP_CH1                     0x83\r
#define R_8237_DMA_MEM_LP_CH2                     0x81\r
#define R_8237_DMA_MEM_LP_CH3                     0x82\r
#define R_8237_DMA_MEM_LP_CH5                     0x8B\r
#define R_8237_DMA_MEM_LP_CH6                     0x89\r
#define R_8237_DMA_MEM_LP_CH7                     0x8A\r
\r
\r
#define R_8237_DMA_COMMAND_CH0_3                  0x08\r
#define R_8237_DMA_COMMAND_CH4_7                  0xd0\r
#define   B_8237_DMA_COMMAND_GAP                  0x10\r
#define   B_8237_DMA_COMMAND_CGE                  0x04\r
\r
\r
#define R_8237_DMA_STA_CH0_3                      0xd8\r
#define R_8237_DMA_STA_CH4_7                      0xd0\r
\r
#define R_8237_DMA_WRSMSK_CH0_3                   0x0a\r
#define R_8237_DMA_WRSMSK_CH4_7                   0xd4\r
#define   B_8237_DMA_WRSMSK_CMS                   0x04\r
\r
\r
#define R_8237_DMA_CHMODE_CH0_3                   0x0b\r
#define R_8237_DMA_CHMODE_CH4_7                   0xd6\r
#define   V_8237_DMA_CHMODE_DEMAND                0x00\r
#define   V_8237_DMA_CHMODE_SINGLE                0x40\r
#define   V_8237_DMA_CHMODE_CASCADE               0xc0\r
#define   B_8237_DMA_CHMODE_DECREMENT             0x20\r
#define   B_8237_DMA_CHMODE_INCREMENT             0x00\r
#define   B_8237_DMA_CHMODE_AE                    0x10\r
#define   V_8237_DMA_CHMODE_VERIFY                0\r
#define   V_8237_DMA_CHMODE_IO2MEM                0x04\r
#define   V_8237_DMA_CHMODE_MEM2IO                0x08\r
\r
#define R_8237_DMA_CBPR_CH0_3                     0x0c\r
#define R_8237_DMA_CBPR_CH4_7                     0xd8\r
\r
#define R_8237_DMA_MCR_CH0_3                      0x0d\r
#define R_8237_DMA_MCR_CH4_7                      0xda\r
\r
#define R_8237_DMA_CLMSK_CH0_3                    0x0e\r
#define R_8237_DMA_CLMSK_CH4_7                    0xdc\r
\r
#define R_8237_DMA_WRMSK_CH0_3                    0x0f\r
#define R_8237_DMA_WRMSK_CH4_7                    0xde\r
\r
\r
extern EFI_ISA_IO_PROTOCOL    IsaIoInterface;\r
\r
typedef enum {\r
  IsaAccessTypeUnknown,\r
  IsaAccessTypeIo,\r
  IsaAccessTypeMem,\r
  IsaAccessTypeMaxType\r
} ISA_ACCESS_TYPE;\r
\r
//\r
// 16 MB Memory Range\r
//\r
#define ISA_MAX_MEMORY_ADDRESS  0x1000000\r
//\r
// 64K I/O Range\r
//\r
#define ISA_MAX_IO_ADDRESS  0x10000\r
\r
typedef struct {\r
  UINT8 Address;\r
  UINT8 Page;\r
  UINT8 Count;\r
} EFI_ISA_DMA_REGISTERS;\r
\r
//\r
// ISA I/O Device Structure\r
//\r
#define ISA_IO_DEVICE_SIGNATURE EFI_SIGNATURE_32 ('i', 's', 'a', 'i')\r
\r
typedef struct {\r
  UINT32                                    Signature;\r
  EFI_HANDLE                                Handle;\r
  EFI_ISA_IO_PROTOCOL                       IsaIo;\r
  EFI_DEVICE_PATH_PROTOCOL                  *DevicePath;\r
  EFI_PCI_IO_PROTOCOL                       *PciIo;\r
} ISA_IO_DEVICE;\r
\r
#define ISA_IO_DEVICE_FROM_ISA_IO_THIS(a) CR (a, ISA_IO_DEVICE, IsaIo, ISA_IO_DEVICE_SIGNATURE)\r
\r
//\r
// Global Variables\r
//\r
extern EFI_DRIVER_BINDING_PROTOCOL  gIsaBusControllerDriver;\r
\r
//\r
// Mapping structure for performing ISA DMA to a buffer above 16 MB\r
//\r
typedef struct {\r
  EFI_ISA_IO_PROTOCOL_OPERATION Operation;\r
  UINTN                         NumberOfBytes;\r
  UINTN                         NumberOfPages;\r
  EFI_PHYSICAL_ADDRESS          HostAddress;\r
  EFI_PHYSICAL_ADDRESS          MappedHostAddress;\r
} ISA_MAP_INFO;\r
\r
//\r
// EFI Driver Binding Protocol Interface Functions\r
//\r
\r
EFI_STATUS\r
EFIAPI\r
IsaBusControllerDriverSupported (\r
  IN EFI_DRIVER_BINDING_PROTOCOL  * This,\r
  IN EFI_HANDLE                   Controller,\r
  IN EFI_DEVICE_PATH_PROTOCOL     * RemainingDevicePath OPTIONAL\r
  )\r
/*++\r
\r
  Routine Description:\r
  \r
    This function checks to see if a controller can be managed by the ISA Bus \r
    Driver. This is done by checking to see if the controller supports the \r
    EFI_PCI_IO_PROTOCOL protocol, and then looking at the PCI Configuration \r
    Header to see if the device is a PCI to ISA bridge. The class code of \r
    PCI to ISA bridge: Base class 06h, Sub class 01h Interface 00h \r
  \r
  Arguments:\r
  \r
    This                 - The EFI_DRIVER_BINDING_PROTOCOL instance.\r
    Controller           - The handle of the device to check.\r
    RemainingDevicePath  - A pointer to the remaining portion of a device path.\r
\r
  Returns:\r
  \r
    EFI_SUCCESS          - The device is supported by this driver.\r
    EFI_UNSUPPORTED      - The device is not supported by this driver.\r
\r
--*/\r
;\r
\r
EFI_STATUS\r
EFIAPI\r
IsaBusControllerDriverStart (\r
  IN EFI_DRIVER_BINDING_PROTOCOL  * This,\r
  IN EFI_HANDLE                   Controller,\r
  IN EFI_DEVICE_PATH_PROTOCOL     * RemainingDevicePath OPTIONAL\r
  )\r
/*++\r
\r
  Routine Description:\r
  \r
    This function tells the ISA Bus Driver to start managing a PCI to ISA \r
    Bridge controller. \r
  \r
  Arguments:\r
  \r
    This                  - The EFI_DRIVER_BINDING_PROTOCOL instance.\r
    Controller            - A handle to the device being started. \r
    RemainingDevicePath   - A pointer to the remaining portion of a device path.\r
\r
  Returns:\r
  \r
    EFI_SUCCESS           - The device was started.\r
    EFI_UNSUPPORTED       - The device is not supported.\r
    EFI_DEVICE_ERROR      - The device could not be started due to a device error.\r
    EFI_ALREADY_STARTED   - The device has already been started.\r
    EFI_INVALID_PARAMETER - One of the parameters has an invalid value.\r
    EFI_OUT_OF_RESOURCES  - The request could not be completed due to a lack of \r
                            resources.\r
  \r
--*/\r
;\r
\r
EFI_STATUS\r
EFIAPI\r
IsaBusControllerDriverStop (\r
  IN  EFI_DRIVER_BINDING_PROTOCOL  * This,\r
  IN  EFI_HANDLE                   Controller,\r
  IN  UINTN                        NumberOfChildren,\r
  IN  EFI_HANDLE                   * ChildHandleBuffer OPTIONAL\r
  )\r
/*++\r
\r
  Routine Description:\r
  \r
    This function tells the ISA Bus Driver to stop managing a PCI to ISA \r
    Bridge controller. \r
     \r
  Arguments:\r
  \r
    This                   - The EFI_DRIVER_BINDING_PROTOCOL instance.\r
    Controller             - A handle to the device being stopped.\r
    NumberOfChindren       - The number of child device handles in ChildHandleBuffer.\r
    ChildHandleBuffer      - An array of child handles to be freed.\r
\r
  \r
  Returns:\r
  \r
    EFI_SUCCESS            - The device was stopped.\r
    EFI_DEVICE_ERROR       - The device could not be stopped due to a device error.\r
    EFI_NOT_STARTED        - The device has not been started.\r
    EFI_INVALID_PARAMETER  - One of the parameters has an invalid value.\r
    EFI_OUT_OF_RESOURCES   - The request could not be completed due to a lack of \r
                             resources.\r
\r
--*/\r
;\r
\r
//\r
// Function Prototypes\r
//\r
\r
EFI_STATUS\r
IsaCreateDevice (\r
  IN EFI_DRIVER_BINDING_PROTOCOL  *This,\r
  IN EFI_HANDLE                   Controller,\r
  IN EFI_PCI_IO_PROTOCOL          *PciIo,\r
  IN EFI_DEVICE_PATH_PROTOCOL     *ParentDevicePath,\r
  IN EFI_ISA_ACPI_RESOURCE_LIST   *IsaDeviceResourceList,\r
  OUT EFI_DEVICE_PATH_PROTOCOL    **ChildDevicePath\r
  )\r
/*++\r
\r
  Routine Description:\r
  \r
    Create ISA device found by IsaPnpProtocol \r
\r
  Arguments:\r
  \r
    This                   - The EFI_DRIVER_BINDING_PROTOCOL instance.\r
    Controller             - The handle of ISA bus controller(PCI to ISA bridge)\r
    PciIo                  - The Pointer to the PCI protocol \r
    ParentDevicePath       - Device path of the ISA bus controller\r
    IsaDeviceResourceList  - The resource list of the ISA device\r
    ChildDevicePath        - The pointer to the child device.\r
\r
  Returns:\r
  \r
    EFI_SUCCESS            - Create the child device.\r
    EFI_OUT_OF_RESOURCES   - The request could not be completed due to a lack of \r
                             resources.\r
    EFI_DEVICE_ERROR       - Can not create child device.\r
    \r
--*/\r
;\r
\r
EFI_STATUS\r
InitializeIsaIoInstance (\r
  IN ISA_IO_DEVICE               *IsaIoDevice,\r
  IN EFI_ISA_ACPI_RESOURCE_LIST  *IsaDevice\r
  )\r
/*++\r
\r
Routine Description:\r
\r
  Initializes an ISA I/O Instance\r
\r
Arguments:\r
\r
  IsaIoDevice            - The iso device to be initialized.\r
  IsaDevice              - The resource list.\r
  \r
Returns:\r
\r
  EFI_SUCCESS            - Initial success.\r
  \r
--*/\r
;\r
\r
#endif\r
Commit	Line	Data
f8cd287b	1	/**@file\r
c3902377	2	The header file for ISA bus driver\r
c3902377	3	\r
f8cd287b	4	Copyright (c) 2006 - 2007, Intel Corporation. <BR>\r
	5	All rights reserved. This program and the accompanying materials\r
	6	are licensed and made available under the terms and conditions of the BSD License\r
	7	which accompanies this distribution. The full text of the license may be found at\r
	8	http://opensource.org/licenses/bsd-license.php\r
	9	\r
	10	THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r
	11	WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
c3902377	12	\r
f8cd287b	13	**/\r
c3902377	14	\r
	15	#ifndef _EFI_ISA_BUS_H\r
	16	#define _EFI_ISA_BUS_H\r
	17	\r
ed7748fe	18	\r
c55fa8cc	19	#include <PiDxe.h>\r
c55fa8cc	20	#include <FrameworkDxe.h>\r
ed7748fe	21	\r
c55fa8cc	22	#include <Protocol/PciIo.h>\r
	23	#include <Protocol/ComponentName.h>\r
	24	#include <Protocol/IsaIo.h>\r
	25	#include <Protocol/DevicePath.h>\r
	26	#include <Protocol/IsaAcpi.h>\r
	27	#include <Protocol/DriverBinding.h>\r
	28	#include <Protocol/GenericMemoryTest.h>\r
	29	#include <Guid/StatusCodeDataTypeId.h>\r
ed7748fe	30	\r
c55fa8cc	31	#include <Library/DebugLib.h>\r
	32	#include <Library/UefiDriverEntryPoint.h>\r
	33	#include <Library/UefiLib.h>\r
	34	#include <Library/DevicePathLib.h>\r
	35	#include <Library/BaseMemoryLib.h>\r
	36	#include <Library/MemoryAllocationLib.h>\r
	37	#include <Library/UefiBootServicesTableLib.h>\r
	38	#include <Library/ReportStatusCodeLib.h>\r
	39	#include <Library/PcdLib.h>\r
c3902377	40	\r
	41	#include "ComponentName.h"\r
	42	\r
c21fc3e8	43	//\r
	44	// 8237 DMA registers\r
	45	//\r
	46	#define R_8237_DMA_BASE_CA_CH0 0x00\r
	47	#define R_8237_DMA_BASE_CA_CH1 0x02\r
	48	#define R_8237_DMA_BASE_CA_CH2 0x04\r
	49	#define R_8237_DMA_BASE_CA_CH3 0xd6\r
	50	#define R_8237_DMA_BASE_CA_CH5 0xc4\r
	51	#define R_8237_DMA_BASE_CA_CH6 0xc8\r
	52	#define R_8237_DMA_BASE_CA_CH7 0xcc\r
	53	\r
	54	#define R_8237_DMA_BASE_CC_CH0 0x01\r
	55	#define R_8237_DMA_BASE_CC_CH1 0x03\r
	56	#define R_8237_DMA_BASE_CC_CH2 0x05\r
	57	#define R_8237_DMA_BASE_CC_CH3 0xd7\r
	58	#define R_8237_DMA_BASE_CC_CH5 0xc6\r
	59	#define R_8237_DMA_BASE_CC_CH6 0xca\r
	60	#define R_8237_DMA_BASE_CC_CH7 0xce\r
	61	\r
	62	#define R_8237_DMA_MEM_LP_CH0 0x87\r
	63	#define R_8237_DMA_MEM_LP_CH1 0x83\r
	64	#define R_8237_DMA_MEM_LP_CH2 0x81\r
	65	#define R_8237_DMA_MEM_LP_CH3 0x82\r
	66	#define R_8237_DMA_MEM_LP_CH5 0x8B\r
	67	#define R_8237_DMA_MEM_LP_CH6 0x89\r
	68	#define R_8237_DMA_MEM_LP_CH7 0x8A\r
	69	\r
	70	\r
	71	#define R_8237_DMA_COMMAND_CH0_3 0x08\r
	72	#define R_8237_DMA_COMMAND_CH4_7 0xd0\r
	73	#define B_8237_DMA_COMMAND_GAP 0x10\r
	74	#define B_8237_DMA_COMMAND_CGE 0x04\r
	75	\r
	76	\r
	77	#define R_8237_DMA_STA_CH0_3 0xd8\r
	78	#define R_8237_DMA_STA_CH4_7 0xd0\r
	79	\r
	80	#define R_8237_DMA_WRSMSK_CH0_3 0x0a\r
	81	#define R_8237_DMA_WRSMSK_CH4_7 0xd4\r
	82	#define B_8237_DMA_WRSMSK_CMS 0x04\r
	83	\r
	84	\r
	85	#define R_8237_DMA_CHMODE_CH0_3 0x0b\r
	86	#define R_8237_DMA_CHMODE_CH4_7 0xd6\r
	87	#define V_8237_DMA_CHMODE_DEMAND 0x00\r
	88	#define V_8237_DMA_CHMODE_SINGLE 0x40\r
	89	#define V_8237_DMA_CHMODE_CASCADE 0xc0\r
	90	#define B_8237_DMA_CHMODE_DECREMENT 0x20\r
	91	#define B_8237_DMA_CHMODE_INCREMENT 0x00\r
	92	#define B_8237_DMA_CHMODE_AE 0x10\r
	93	#define V_8237_DMA_CHMODE_VERIFY 0\r
	94	#define V_8237_DMA_CHMODE_IO2MEM 0x04\r
	95	#define V_8237_DMA_CHMODE_MEM2IO 0x08\r
	96	\r
	97	#define R_8237_DMA_CBPR_CH0_3 0x0c\r
	98	#define R_8237_DMA_CBPR_CH4_7 0xd8\r
	99	\r
	100	#define R_8237_DMA_MCR_CH0_3 0x0d\r
	101	#define R_8237_DMA_MCR_CH4_7 0xda\r
	102	\r
	103	#define R_8237_DMA_CLMSK_CH0_3 0x0e\r
	104	#define R_8237_DMA_CLMSK_CH4_7 0xdc\r
	105	\r
	106	#define R_8237_DMA_WRMSK_CH0_3 0x0f\r
107	#define R_8237_DMA_WRMSK_CH4_7 0xde\r
108	\r
109	\r
c3902377	110	extern EFI_ISA_IO_PROTOCOL IsaIoInterface;\r
	111	\r
	112	typedef enum {\r
	113	IsaAccessTypeUnknown,\r
	114	IsaAccessTypeIo,\r
	115	IsaAccessTypeMem,\r
	116	IsaAccessTypeMaxType\r
	117	} ISA_ACCESS_TYPE;\r
	118	\r
	119	//\r
	120	// 16 MB Memory Range\r
	121	//\r
	122	#define ISA_MAX_MEMORY_ADDRESS 0x1000000\r
	123	//\r
	124	// 64K I/O Range\r
	125	//\r
	126	#define ISA_MAX_IO_ADDRESS 0x10000\r
	127	\r
	128	typedef struct {\r
	129	UINT8 Address;\r
	130	UINT8 Page;\r
	131	UINT8 Count;\r
	132	} EFI_ISA_DMA_REGISTERS;\r
	133	\r
	134	//\r
	135	// ISA I/O Device Structure\r
	136	//\r
	137	#define ISA_IO_DEVICE_SIGNATURE EFI_SIGNATURE_32 ('i', 's', 'a', 'i')\r
	138	\r
	139	typedef struct {\r
	140	UINT32 Signature;\r
	141	EFI_HANDLE Handle;\r
	142	EFI_ISA_IO_PROTOCOL IsaIo;\r
	143	EFI_DEVICE_PATH_PROTOCOL *DevicePath;\r
	144	EFI_PCI_IO_PROTOCOL *PciIo;\r
	145	} ISA_IO_DEVICE;\r
	146	\r
	147	#define ISA_IO_DEVICE_FROM_ISA_IO_THIS(a) CR (a, ISA_IO_DEVICE, IsaIo, ISA_IO_DEVICE_SIGNATURE)\r
	148	\r
	149	//\r
	150	// Global Variables\r
	151	//\r
	152	extern EFI_DRIVER_BINDING_PROTOCOL gIsaBusControllerDriver;\r
	153	\r
	154	//\r
	155	// Mapping structure for performing ISA DMA to a buffer above 16 MB\r
	156	//\r
	157	typedef struct {\r
	158	EFI_ISA_IO_PROTOCOL_OPERATION Operation;\r
	159	UINTN NumberOfBytes;\r
	160	UINTN NumberOfPages;\r
	161	EFI_PHYSICAL_ADDRESS HostAddress;\r
	162	EFI_PHYSICAL_ADDRESS MappedHostAddress;\r
	163	} ISA_MAP_INFO;\r
	164	\r
	165	//\r
	166	// EFI Driver Binding Protocol Interface Functions\r
	167	//\r
	168	\r
	169	EFI_STATUS\r
	170	EFIAPI\r
	171	IsaBusControllerDriverSupported (\r
	172	IN EFI_DRIVER_BINDING_PROTOCOL * This,\r
	173	IN EFI_HANDLE Controller,\r
174	IN EFI_DEVICE_PATH_PROTOCOL * RemainingDevicePath OPTIONAL\r
175	)\r
176	/*++\r
177	\r
178	Routine Description:\r
179	\r
180	This function checks to see if a controller can be managed by the ISA Bus \r
181	Driver. This is done by checking to see if the controller supports the \r
182	EFI_PCI_IO_PROTOCOL protocol, and then looking at the PCI Configuration \r
183	Header to see if the device is a PCI to ISA bridge. The class code of \r
184	PCI to ISA bridge: Base class 06h, Sub class 01h Interface 00h \r
185	\r
186	Arguments:\r
187	\r
188	This - The EFI_DRIVER_BINDING_PROTOCOL instance.\r
189	Controller - The handle of the device to check.\r
190	RemainingDevicePath - A pointer to the remaining portion of a device path.\r
191	\r
192	Returns:\r
193	\r
194	EFI_SUCCESS - The device is supported by this driver.\r
195	EFI_UNSUPPORTED - The device is not supported by this driver.\r
196	\r
197	--*/\r
198	;\r
199	\r
200	EFI_STATUS\r
201	EFIAPI\r
202	IsaBusControllerDriverStart (\r
203	IN EFI_DRIVER_BINDING_PROTOCOL * This,\r
204	IN EFI_HANDLE Controller,\r
205	IN EFI_DEVICE_PATH_PROTOCOL * RemainingDevicePath OPTIONAL\r
206	)\r
207	/*++\r
208	\r
209	Routine Description:\r
210	\r
211	This function tells the ISA Bus Driver to start managing a PCI to ISA \r
212	Bridge controller. \r
213	\r
214	Arguments:\r
215	\r
216	This - The EFI_DRIVER_BINDING_PROTOCOL instance.\r
217	Controller - A handle to the device being started. \r
218	RemainingDevicePath - A pointer to the remaining portion of a device path.\r
219	\r
220	Returns:\r
221	\r
222	EFI_SUCCESS - The device was started.\r
223	EFI_UNSUPPORTED - The device is not supported.\r
224	EFI_DEVICE_ERROR - The device could not be started due to a device error.\r
225	EFI_ALREADY_STARTED - The device has already been started.\r
226	EFI_INVALID_PARAMETER - One of the parameters has an invalid value.\r
227	EFI_OUT_OF_RESOURCES - The request could not be completed due to a lack of \r
228	resources.\r
229	\r
230	--*/\r
231	;\r
232	\r
233	EFI_STATUS\r
234	EFIAPI\r
235	IsaBusControllerDriverStop (\r
236	IN EFI_DRIVER_BINDING_PROTOCOL * This,\r
237	IN EFI_HANDLE Controller,\r
238	IN UINTN NumberOfChildren,\r
239	IN EFI_HANDLE * ChildHandleBuffer OPTIONAL\r
240	)\r
241	/*++\r
242	\r
243	Routine Description:\r
244	\r
245	This function tells the ISA Bus Driver to stop managing a PCI to ISA \r
246	Bridge controller. \r
247	\r
248	Arguments:\r
249	\r
250	This - The EFI_DRIVER_BINDING_PROTOCOL instance.\r
251	Controller - A handle to the device being stopped.\r
252	NumberOfChindren - The number of child device handles in ChildHandleBuffer.\r
253	ChildHandleBuffer - An array of child handles to be freed.\r
254	\r
255	\r
256	Returns:\r
257	\r
258	EFI_SUCCESS - The device was stopped.\r
259	EFI_DEVICE_ERROR - The device could not be stopped due to a device error.\r
260	EFI_NOT_STARTED - The device has not been started.\r
261	EFI_INVALID_PARAMETER - One of the parameters has an invalid value.\r
262	EFI_OUT_OF_RESOURCES - The request could not be completed due to a lack of \r
263	resources.\r
264	\r
265	--*/\r
266	;\r
267	\r
268	//\r
269	// Function Prototypes\r
270	//\r
271	\r
272	EFI_STATUS\r
273	IsaCreateDevice (\r
274	IN EFI_DRIVER_BINDING_PROTOCOL *This,\r
275	IN EFI_HANDLE Controller,\r
276	IN EFI_PCI_IO_PROTOCOL *PciIo,\r
277	IN EFI_DEVICE_PATH_PROTOCOL *ParentDevicePath,\r
278	IN EFI_ISA_ACPI_RESOURCE_LIST *IsaDeviceResourceList,\r
279	OUT EFI_DEVICE_PATH_PROTOCOL **ChildDevicePath\r
280	)\r
281	/*++\r
282	\r
283	Routine Description:\r
284	\r
285	Create ISA device found by IsaPnpProtocol \r
286	\r
287	Arguments:\r
288	\r
289	This - The EFI_DRIVER_BINDING_PROTOCOL instance.\r
290	Controller - The handle of ISA bus controller(PCI to ISA bridge)\r
291	PciIo - The Pointer to the PCI protocol \r
292	ParentDevicePath - Device path of the ISA bus controller\r
293	IsaDeviceResourceList - The resource list of the ISA device\r
294	ChildDevicePath - The pointer to the child device.\r
295	\r
296	Returns:\r
297	\r
298	EFI_SUCCESS - Create the child device.\r
299	EFI_OUT_OF_RESOURCES - The request could not be completed due to a lack of \r
300	resources.\r
301	EFI_DEVICE_ERROR - Can not create child device.\r
302	\r
303	--*/\r
304	;\r
305	\r
306	EFI_STATUS\r
307	InitializeIsaIoInstance (\r
308	IN ISA_IO_DEVICE *IsaIoDevice,\r
309	IN EFI_ISA_ACPI_RESOURCE_LIST *IsaDevice\r
310	)\r
311	/*++\r
312	\r
313	Routine Description:\r
314	\r
315	Initializes an ISA I/O Instance\r
316	\r
317	Arguments:\r
318	\r
319	IsaIoDevice - The iso device to be initialized.\r
320	IsaDevice - The resource list.\r
321	\r
322	Returns:\r
323	\r
324	EFI_SUCCESS - Initial success.\r
325	\r
326	--*/\r
327	;\r
328	\r
329	#endif\r