| /* SPDX-License-Identifier: GPL-2.0-only */ |
| |
| /* |
| * Include this file into a mainboard's DSDT _SB device tree and it will |
| * expose the W83627DHG 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 and controlling power |
| * saving mode on logical devices or the whole chip. |
| * |
| * LDN State |
| * 0x0 FDC Not implemented |
| * 0x1 PP Not implemented |
| * 0x2 UARTA Implemented, partially tested |
| * 0x3 UARTB UART only, partially tested |
| * 0x5 KBC Implemented, untested |
| * 0x6 SPI Not implemented |
| * 0x7 GPIO6 Not implemented |
| * 0x8 WDT0&PLED Not implemented |
| * 0x9 GPIO2-5 Not implemented |
| * 0xa ACPI Not implemented |
| * 0xb HWM Resources, PM only |
| * 0xc PECI&SST Not implemented |
| * |
| * 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 |
| * W83627DHG_SHOW_UARTA If defined, UARTA will be exposed. |
| * W83627DHG_SHOW_UARTB If defined, UARTB will be exposed. |
| * W83627DHG_SHOW_KBC If defined, the KBC will be exposed. |
| * W83627DHG_SHOW_PS2M If defined, PS/2 mouse support will be exposed. |
| * W83627DHG_SHOW_HWMON If defined, the hardware monitor will be exposed. |
| */ |
| |
| #undef SUPERIO_CHIP_NAME |
| #define SUPERIO_CHIP_NAME W83627DHG |
| #include <superio/acpi/pnp.asl> |
| |
| Device(SUPERIO_DEV) { |
| Name (_HID, EisaId("PNP0A05")) |
| Name (_STR, Unicode("Winbond W83627DHG Super I/O")) |
| Name (_UID, SUPERIO_UID(SUPERIO_DEV,)) |
| |
| /* Mutex for accesses to the configuration ports */ |
| Mutex(CRMX, 1) |
| |
| /* 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 (0x22), |
| FDPW, 1, /* FDC Power Down */ |
| , 2, |
| PRPW, 1, /* PRT Power Down */ |
| UAPW, 1, /* UART A Power Down */ |
| UBPW, 1, /* UART B Power Down */ |
| HWPW, 1, /* HWM Power Down */ |
| Offset (0x23), |
| IPD, 1, /* Immediate Chip Power Down */ |
| |
| Offset (0x30), |
| PNP_DEVICE_ACTIVE, 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 (0x70), |
| PNP_IRQ0, 8, /* First IRQ */ |
| Offset (0x72), |
| PNP_IRQ1, 8, /* Second IRQ */ |
| |
| Offset (0x74), |
| PNP_DMA0, 8, /* DMA */ |
| |
| Offset (0xf3), |
| SULM, 8, /* Suspend LED Mode Register */ |
| } |
| |
| 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> |
| |
| /* PM: indicate IPD (Immediate Power Down) bit state as D0/D3 */ |
| Method (_PSC) { |
| ENTER_CONFIG_MODE (PNP_NO_LDN_CHANGE) |
| Local0 = IPD |
| EXIT_CONFIG_MODE () |
| If (Local0) { Return (3) } |
| Else { Return (0) } |
| } |
| |
| /* PM: Switch to D0 by setting IPD low */ |
| Method (_PS0) { |
| ENTER_CONFIG_MODE (PNP_NO_LDN_CHANGE) |
| IPD = 0 |
| EXIT_CONFIG_MODE () |
| } |
| |
| /* PM: Switch to D3 by setting IPD high */ |
| Method (_PS3) { |
| ENTER_CONFIG_MODE (PNP_NO_LDN_CHANGE) |
| IPD = 1 |
| EXIT_CONFIG_MODE () |
| } |
| |
| /* Suspend LED: Write given three-bit value into appropriate register. |
| From the datasheet: |
| 000 - drive pin constantly high |
| 001 - drive 0.5Hz pulses |
| 010 - drive pin constantly low |
| 011 - drive 2Hz pulses |
| 100 - drive 1Hz pulses |
| 101 - drive 4Hz pulses |
| 110 - drive 0.25Hz pulses |
| 111 - drive 0.25Hz pulses |
| (all pulses with 50% duty cycle) */ |
| #define SUPERIO_SUSL_LDN 9 |
| Method (SUSL, 1, Serialized) { |
| ENTER_CONFIG_MODE (SUPERIO_SUSL_LDN) |
| Local0 = SULM |
| Local0 &= 0x1f |
| Local0 |= (Arg0 << 5) |
| SULM = Local0 |
| EXIT_CONFIG_MODE () |
| } |
| |
| #ifdef W83627DHG_SHOW_UARTA |
| #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 |
| #define SUPERIO_UART_PM_REG UAPW |
| #define SUPERIO_UART_PM_VAL 0 |
| #define SUPERIO_UART_PM_LDN PNP_NO_LDN_CHANGE |
| #include <superio/acpi/pnp_uart.asl> |
| #endif |
| |
| #ifdef W83627DHG_SHOW_UARTB |
| #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 |
| #define SUPERIO_UART_PM_REG UBPW |
| #define SUPERIO_UART_PM_VAL 0 |
| #define SUPERIO_UART_PM_LDN PNP_NO_LDN_CHANGE |
| #include <superio/acpi/pnp_uart.asl> |
| #endif |
| |
| #ifdef W83627DHG_SHOW_KBC |
| #undef SUPERIO_KBC_LDN |
| #undef SUPERIO_KBC_PS2M |
| #undef SUPERIO_KBC_PS2LDN |
| #define SUPERIO_KBC_LDN 5 |
| #ifdef W83627DHG_SHOW_PS2M |
| #define SUPERIO_KBC_PS2M 1 |
| #endif |
| #include <superio/acpi/pnp_kbc.asl> |
| #endif |
| |
| #ifdef W83627DHG_SHOW_HWMON |
| #undef SUPERIO_PNP_LDN |
| #undef SUPERIO_PNP_DDN |
| #undef SUPERIO_PNP_NO_DIS |
| #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_IRQ0 |
| #undef SUPERIO_PNP_IRQ1 |
| #undef SUPERIO_PNP_DMA |
| #define SUPERIO_PNP_LDN 11 |
| #define SUPERIO_PNP_PM_REG HWPW |
| #define SUPERIO_PNP_PM_VAL 0 |
| #define SUPERIO_PNP_PM_LDN PNP_NO_LDN_CHANGE |
| #define SUPERIO_PNP_IO0 0x08, 0x08 |
| #define SUPERIO_PNP_IRQ0 1 |
| #include <superio/acpi/pnp_generic.asl> |
| #endif |
| } |