diff options
author | Ralf Baechle <ralf@linux-mips.org> | 2001-01-10 17:17:53 +0000 |
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committer | Ralf Baechle <ralf@linux-mips.org> | 2001-01-10 17:17:53 +0000 |
commit | b2ad5f821b1381492d792ca10b1eb7a107b48f14 (patch) | |
tree | 954a648692e7da983db1d2470953705f6a729264 /drivers/acpi/ec.h | |
parent | c9c06167e7933d93a6e396174c68abf242294abb (diff) |
Merge with Linux 2.4.0-prerelease. Big Makefile rewrite, test your
Makefiles.
Diffstat (limited to 'drivers/acpi/ec.h')
-rw-r--r-- | drivers/acpi/ec.h | 100 |
1 files changed, 100 insertions, 0 deletions
diff --git a/drivers/acpi/ec.h b/drivers/acpi/ec.h new file mode 100644 index 000000000..e81356362 --- /dev/null +++ b/drivers/acpi/ec.h @@ -0,0 +1,100 @@ +/* + * Copyright (C) 2000 Andrew Grover + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + + +#ifndef __EC_H__ +#define __EC_H__ + +// TODO: Linux-specific +#include <linux/spinlock.h> +#include <asm/semaphore.h> + +#include <actypes.h> +#include <acexcep.h> + +/***************************************************************************** + * Types & Other Defines + *****************************************************************************/ + +#define EC_DEFAULT_TIMEOUT 1000 /* 1 second */ +#define EC_GPE_UNKNOWN 0xFFFFFFFF +#define EC_PORT_UNKNOWN 0x00000000 +#define EC_BURST_ENABLE_ACKNOWLEDGE 0x90 + +/* + * EC_COMMAND: + * ----------- + */ +typedef UINT8 EC_COMMAND; + +#define EC_COMMAND_UNKNOWN ((EC_COMMAND) 0x00) +#define EC_COMMAND_READ ((EC_COMMAND) 0x80) +#define EC_COMMAND_WRITE ((EC_COMMAND) 0x81) +#define EC_COMMAND_QUERY ((EC_COMMAND) 0x84) + +/* + * EC_STATUS: + * ---------- + * The encoding of the EC status register is illustrated below. + * Note that a set bit (1) indicates the property is TRUE + * (e.g. if bit 0 is set then the output buffer is full). + * +-+-+-+-+-+-+-+-+ + * |7|6|5|4|3|2|1|0| + * +-+-+-+-+-+-+-+-+ + * | | | | | | | | + * | | | | | | | +- Output Buffer Full (OBF)? + * | | | | | | +--- Input Buffer Full (IBF)? + * | | | | | +----- <reserved> + * | | | | +------- data Register is command Byte? + * | | | +--------- Burst Mode Enabled? + * | | +----------- SCI event? + * | +------------- SMI event? + * +--------------- <Reserved> + * + */ +typedef UINT8 EC_STATUS; + +#define EC_FLAG_OUTPUT_BUFFER ((EC_STATUS) 0x01) +#define EC_FLAG_INPUT_BUFFER ((EC_STATUS) 0x02) +#define EC_FLAG_BURST_MODE ((EC_STATUS) 0x10) +#define EC_FLAG_SCI ((EC_STATUS) 0x20) + +/* + * EC_EVENT: + * --------- + */ +typedef UINT8 EC_EVENT; + +#define EC_EVENT_UNKNOWN ((EC_EVENT) 0x00) +#define EC_EVENT_NONE ((EC_EVENT) 0x00) +#define EC_EVENT_OUTPUT_BUFFER_FULL ((EC_EVENT) 0x01) +#define EC_EVENT_INPUT_BUFFER_EMPTY ((EC_EVENT) 0x02) +#define EC_EVENT_SCI ((EC_EVENT) 0x03) + +/* + * EC_REQUEST: + * ----------- + */ +typedef struct +{ + EC_COMMAND command; + UINT8 address; + UINT8 data; +} EC_REQUEST; + +#endif /* __EC_H__ */ |