void
acpi_hw_disable_gpe (
u32 gpe_number)
{
u32 in_byte;
u32 register_index;
u32 bit_mask;
FUNCTION_ENTRY ();
/*
* Translate GPE number to index into global registers array.
*/
register_index = acpi_gbl_gpe_valid[gpe_number];
/*
* Figure out the bit offset for this GPE within the target register.
*/
bit_mask = acpi_gbl_decode_to8bit [MOD_8 (gpe_number)];
/*
* Read the current value of the register, clear the appropriate bit,
* and write out the new register value to disable the GPE.
*/
in_byte = 0;
acpi_os_read_port (acpi_gbl_gpe_registers[register_index].enable_addr, &in_byte, 8);
acpi_os_write_port (acpi_gbl_gpe_registers[register_index].enable_addr,
(in_byte & ~bit_mask), 8);
acpi_hw_disable_gpe_for_wakeup(gpe_number);
}
acpi_status
acpi_hw_disable_gpe (
struct acpi_gpe_event_info *gpe_event_info)
{
u32 in_byte;
acpi_status status;
struct acpi_gpe_register_info *gpe_register_info;
ACPI_FUNCTION_ENTRY ();
/* Get the info block for the entire GPE register */
gpe_register_info = gpe_event_info->register_info;
if (!gpe_register_info) {
return (AE_BAD_PARAMETER);
}
/*
* Read the current value of the register, clear the appropriate bit,
* and write out the new register value to disable the GPE.
*/
status = acpi_hw_low_level_read (8, &in_byte,
&gpe_register_info->enable_address);
if (ACPI_FAILURE (status)) {
return (status);
}
/* Write the byte with this GPE bit cleared */
status = acpi_hw_low_level_write (8, (in_byte & ~(gpe_event_info->bit_mask)),
&gpe_register_info->enable_address);
if (ACPI_FAILURE (status)) {
return (status);
}
acpi_hw_disable_gpe_for_wakeup (gpe_event_info);
return (AE_OK);
}
