18 acpi_hw_validate_io_request(acpi_io_address address, u32 bit_width);
22  * conditionally illegal. This table must remain ordered by port address.
77  * PARAMETERS:  Address             Address of I/O port/register
82  * DESCRIPTION: Validates an I/O request (address/length). Certain ports are
90 acpi_hw_validate_io_request(acpi_io_address address, u32 bit_width)  in acpi_hw_validate_io_request()  argument
109 	last_address = address + byte_width - 1;  in acpi_hw_validate_io_request()
112 			  "Address %8.8X%8.8X LastAddress %8.8X%8.8X Length %X",  in acpi_hw_validate_io_request()
113 			  ACPI_FORMAT_UINT64(address),  in acpi_hw_validate_io_request()
116 	/* Maximum 16-bit address in I/O space */  in acpi_hw_validate_io_request()
120 			    "Illegal I/O port address/length above 64K: %8.8X%8.8X/0x%X",  in acpi_hw_validate_io_request()
121 			    ACPI_FORMAT_UINT64(address), byte_width));  in acpi_hw_validate_io_request()
125 	/* Exit if requested address is not within the protected port table */  in acpi_hw_validate_io_request()
127 	if (address > acpi_protected_ports[ACPI_PORT_INFO_ENTRIES - 1].end) {  in acpi_hw_validate_io_request()
135 		 * Check if the requested address range will write to a reserved  in acpi_hw_validate_io_request()
138 		 * 1) Address range is contained completely in the port address range  in acpi_hw_validate_io_request()
139 		 * 2) Address range overlaps port range at the port range start  in acpi_hw_validate_io_request()
140 		 * 3) Address range overlaps port range at the port range end  in acpi_hw_validate_io_request()
141 		 * 4) Address range completely encompasses the port range  in acpi_hw_validate_io_request()
143 		if ((address <= port_info->end)  in acpi_hw_validate_io_request()
151 						  ACPI_FORMAT_UINT64(address),  in acpi_hw_validate_io_request()
160 		/* Finished if address range ends before the end of this port */  in acpi_hw_validate_io_request()
174  * PARAMETERS:  Address             Address of I/O port/register to read
182  *              address and the length.
186 acpi_status acpi_hw_read_port(acpi_io_address address, u32 *value, u32 width)  in acpi_hw_read_port()  argument
192 	/* Truncate address to 16 bits if requested */  in acpi_hw_read_port()
195 		address &= ACPI_UINT16_MAX;  in acpi_hw_read_port()
200 	status = acpi_hw_validate_io_request(address, width);  in acpi_hw_read_port()
202 		status = acpi_os_read_port(address, value, width);  in acpi_hw_read_port()
219 		if (acpi_hw_validate_io_request(address, 8) == AE_OK) {  in acpi_hw_read_port()
220 			status = acpi_os_read_port(address, &one_byte, 8);  in acpi_hw_read_port()
228 		address++;  in acpi_hw_read_port()
238  * PARAMETERS:  Address             Address of I/O port/register to write
246  *              address and the length.
250 acpi_status acpi_hw_write_port(acpi_io_address address, u32 value, u32 width)  in acpi_hw_write_port()  argument
255 	/* Truncate address to 16 bits if requested */  in acpi_hw_write_port()
258 		address &= ACPI_UINT16_MAX;  in acpi_hw_write_port()
263 	status = acpi_hw_validate_io_request(address, width);  in acpi_hw_write_port()
265 		status = acpi_os_write_port(address, value, width);  in acpi_hw_write_port()
282 		if (acpi_hw_validate_io_request(address, 8) == AE_OK) {  in acpi_hw_write_port()
284 			    acpi_os_write_port(address, (value >> i) & 0xFF, 8);  in acpi_hw_write_port()
290 		address++;  in acpi_hw_write_port()
300  * PARAMETERS:  Address             Address of I/O port/register blobk
310 acpi_status acpi_hw_validate_io_block(u64 address, u32 bit_width, u32 count)  in acpi_hw_validate_io_block()  argument
315 		status = acpi_hw_validate_io_request((acpi_io_address)address,  in acpi_hw_validate_io_block()
320 		address += ACPI_DIV_8(bit_width);  in acpi_hw_validate_io_block()