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/* SPDX-License-Identifier: GPL-2.0-only */
/*
* Include this file into a mainboard's DSDT _SB device tree and it will
* expose the NCT6687D SuperIO and some of its functionality.
*
* It allows the change of IO ports, IRQs and DMA settings on logical
* devices, disabling and reenabling logical devices.
*
* LDN State
* 0x1 PP Implemented, untested
* 0x2 SP1 Implemented, untested
* 0x3 SP1 Implemented, untested
* 0x5 KBC Implemented, untested
* 0x8 GPIO Implemented, untested
* 0xb EC Implemented, untested
*
* Controllable through preprocessor defines:
* SUPERIO_DEV Device identifier for this SIO (e.g. SIO0)
* SUPERIO_PNP_BASE I/O address of the first PnP configuration register
* NCT6687D_SHOW_PP If defined, the parallel port will be exposed.
* NCT6687D_SHOW_SP1 If defined, Serial Port 1 will be exposed.
* NCT6687D_SHOW_SP2 If defined, Serial Port 2 will be exposed.
* NCT6687D_SHOW_KBC If defined, the Keyboard Controller will be exposed.
* NCT6687D_SHOW_GPIO If defined, GPIO support will be exposed.
* NCT6687D_SHOW_EC If defined, the Environment Controller will be exposed.
*/
#undef SUPERIO_CHIP_NAME
#define SUPERIO_CHIP_NAME NCT6687D
#include <superio/acpi/pnp.asl>
#undef PNP_DEFAULT_PSC
#define PNP_DEFAULT_PSC Return (0) /* no power management */
Device(SUPERIO_DEV) {
Name (_HID, EisaId("PNP0A05"))
Name (_STR, Unicode("Nuvoton NCT6687D Super I/O"))
Name (_UID, SUPERIO_UID(SUPERIO_DEV,))
/* SuperIO configuration ports */
OperationRegion (CREG, SystemIO, SUPERIO_PNP_BASE, 0x02)
Field (CREG, ByteAcc, NoLock, Preserve)
{
PNP_ADDR_REG, 8,
PNP_DATA_REG, 8,
}
IndexField (PNP_ADDR_REG, PNP_DATA_REG, ByteAcc, NoLock, Preserve)
{
Offset (0x07),
PNP_LOGICAL_DEVICE, 8, /* Logical device selector */
Offset (0x30),
PNP_DEVICE_ACTIVE, 1, /* Logical device activation */
ACT1, 1, /* Logical device activation */
ACT2, 1, /* Logical device activation */
ACT3, 1, /* Logical device activation */
ACT4, 1, /* Logical device activation */
ACT5, 1, /* Logical device activation */
ACT6, 1, /* Logical device activation */
ACT7, 1, /* Logical device activation */
Offset (0x60),
PNP_IO0_HIGH_BYTE, 8, /* First I/O port base - high byte */
PNP_IO0_LOW_BYTE, 8, /* First I/O port base - low byte */
Offset (0x62),
PNP_IO1_HIGH_BYTE, 8, /* Second I/O port base - high byte */
PNP_IO1_LOW_BYTE, 8, /* Second I/O port base - low byte */
Offset (0x64),
PNP_IO2_HIGH_BYTE, 8, /* Third I/O port base - high byte */
PNP_IO2_LOW_BYTE, 8, /* Third I/O port base - low byte */
Offset (0x70),
PNP_IRQ0, 8, /* First IRQ */
Offset (0x72),
PNP_IRQ1, 8, /* Second IRQ */
Offset (0x74),
PNP_DMA0, 8, /* DRQ */
}
Method (_CRS)
{
/* Announce the used I/O ports to the OS */
Return (ResourceTemplate () {
IO (Decode16, SUPERIO_PNP_BASE, SUPERIO_PNP_BASE, 0x01, 0x02)
})
}
#undef PNP_ENTER_MAGIC_1ST
#undef PNP_ENTER_MAGIC_2ND
#undef PNP_ENTER_MAGIC_3RD
#undef PNP_ENTER_MAGIC_4TH
#undef PNP_EXIT_MAGIC_1ST
#undef PNP_EXIT_SPECIAL_REG
#undef PNP_EXIT_SPECIAL_VAL
#define PNP_ENTER_MAGIC_1ST 0x87
#define PNP_ENTER_MAGIC_2ND 0x87
#define PNP_EXIT_MAGIC_1ST 0xaa
#include <superio/acpi/pnp_config.asl>
#ifdef NCT6687D_SHOW_PP
#undef SUPERIO_PNP_HID
#undef SUPERIO_PNP_LDN
#undef SUPERIO_PNP_DDN
#undef SUPERIO_PNP_PM_REG
#undef SUPERIO_PNP_PM_VAL
#undef SUPERIO_PNP_PM_LDN
#undef SUPERIO_PNP_IO0
#undef SUPERIO_PNP_IO1
#undef SUPERIO_PNP_IO2
#undef SUPERIO_PNP_IRQ0
#undef SUPERIO_PNP_IRQ1
#undef SUPERIO_PNP_DMA
/*
* The extra code required to dynamically reflect ECP in the HID
* isn't currently justified, so the HID is hardcoded as not
* using ECP. "PNP0401" would indicate ECP.
*/
#define SUPERIO_PNP_HID "PNP0400"
#define SUPERIO_PNP_LDN 1
#define SUPERIO_PNP_IO0 0x08, 0x08
#define SUPERIO_PNP_IRQ0
#define SUPERIO_PNP_DMA
#include <superio/acpi/pnp_generic.asl>
#endif
#ifdef NCT6687D_SHOW_SP1
#undef SUPERIO_UART_LDN
#undef SUPERIO_UART_DDN
#undef SUPERIO_UART_PM_REG
#undef SUPERIO_UART_PM_VAL
#undef SUPERIO_UART_PM_LDN
#define SUPERIO_UART_LDN 2
#include <superio/acpi/pnp_uart.asl>
#endif
#ifdef NCT6687D_SHOW_SP2
#undef SUPERIO_UART_LDN
#undef SUPERIO_UART_DDN
#undef SUPERIO_UART_PM_REG
#undef SUPERIO_UART_PM_VAL
#undef SUPERIO_UART_PM_LDN
#define SUPERIO_UART_LDN 3
#include <superio/acpi/pnp_uart.asl>
#endif
#ifdef NCT6687D_SHOW_KBC
#undef SUPERIO_KBC_LDN
#undef SUPERIO_KBC_PS2M
#undef SUPERIO_KBC_PS2LDN
#define SUPERIO_KBC_LDN 5
#define SUPERIO_KBC_PS2M
#include <superio/acpi/pnp_kbc.asl>
#endif
#ifdef NCT6687D_SHOW_EC
#undef SUPERIO_PNP_HID
#undef SUPERIO_PNP_LDN
#undef SUPERIO_PNP_DDN
#undef SUPERIO_PNP_PM_REG
#undef SUPERIO_PNP_PM_VAL
#undef SUPERIO_PNP_PM_LDN
#undef SUPERIO_PNP_IO0
#undef SUPERIO_PNP_IO1
#undef SUPERIO_PNP_IO2
#undef SUPERIO_PNP_IRQ0
#undef SUPERIO_PNP_IRQ1
#undef SUPERIO_PNP_DMA
#define SUPERIO_PNP_LDN 11
#define SUPERIO_PNP_IO0 0x08, 0x08
#define SUPERIO_PNP_IRQ0
#include <superio/acpi/pnp_generic.asl>
#endif
}
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