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superio/nuvoton/nct6776/acpi: Add parallel port support

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Exposing the parallel port via ACPI causes Linux to automatically detect
the parallel port and load the appropriate modules. Tested on an ASUS
P8H61-M LX with Linux 4.9.110 and 4.17.8.

However, no parallel port device has been tested.

Change-Id: I2529a074e24433d093ad0650a45c7b29238620f3
Signed-off-by: Tristan Corrick <tristan@corrick.kiwi>
Reviewed-on: https://review.coreboot.org/27795
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
This commit is contained in:
Tristan Corrick
2018-08-01 02:55:09 +12:00
committed by Felix Held
parent ad691ad65d
commit 19961a4b1b
1 changed files with 30 additions and 0 deletions
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30
src/superio/nuvoton/nct6776/acpi/superio.asl
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@ -23,6 +23,7 @@
* devices, disabling and reenabling logical devices.
*
* LDN State
* 0x1 PP Implemented, untested
* 0x2 SP1 Implemented, untested
* 0x5 KBC Implemented, untested
* 0x8 GPIO Implemented, untested
@ -31,6 +32,7 @@
* 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
* NCT6776_SHOW_PP If defined, the parallel port will be exposed.
* NCT6776_SHOW_SP1 If defined, Serial Port 1 will be exposed.
* NCT6776_SHOW_KBC If defined, the Keyboard Controller will be exposed.
* NCT6776_SHOW_GPIO If defined, GPIO support will be exposed.
@ -85,6 +87,8 @@ Device(SUPERIO_DEV) {
PNP_IRQ0, 8, /* First IRQ */
Offset (0x72),
PNP_IRQ1, 8, /* Second IRQ */
Offset (0x74),
PNP_DMA0, 8, /* DRQ */
}
Method (_CRS)
@ -107,6 +111,32 @@ Device(SUPERIO_DEV) {
#define PNP_EXIT_MAGIC_1ST 0xaa
#include <superio/acpi/pnp_config.asl>
#ifdef NCT6776_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 NCT6776_SHOW_SP1
#undef SUPERIO_UART_LDN
#undef SUPERIO_UART_DDN