--- /dev/null
+#ifndef _HIL_H_
+#define _HIL_H_
+
+/*
+ * Hewlett Packard Human Interface Loop (HP-HIL) Protocol -- header.
+ *
+ * Copyright (c) 2001 Brian S. Julin
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions, and the following disclaimer,
+ * without modification.
+ * 2. The name of the author may not be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL").
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
+ * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ *
+ * References:
+ * HP-HIL Technical Reference Manual. Hewlett Packard Product No. 45918A
+ *
+ * A note of thanks to HP for providing and shipping reference materials
+ * free of charge to help in the development of HIL support for Linux.
+ *
+ */
+
+#include <asm/types.h>
+
+/* Physical constants relevant to raw loop/device timing.
+ */
+
+#define HIL_CLOCK 8MHZ
+#define HIL_EK1_CLOCK 30HZ
+#define HIL_EK2_CLOCK 60HZ
+
+#define HIL_TIMEOUT_DEV 5 /* ms */
+#define HIL_TIMEOUT_DEVS 10 /* ms */
+#define HIL_TIMEOUT_NORESP 10 /* ms */
+#define HIL_TIMEOUT_DEVS_DATA 16 /* ms */
+#define HIL_TIMEOUT_SELFTEST 200 /* ms */
+
+
+/* Actual wire line coding. These will only be useful if someone is
+ * implementing a software MLC to run HIL devices on a non-parisc machine.
+ */
+
+#define HIL_WIRE_PACKET_LEN 15
+enum hil_wire_bitpos {
+ HIL_WIRE_START = 0,
+ HIL_WIRE_ADDR2,
+ HIL_WIRE_ADDR1,
+ HIL_WIRE_ADDR0,
+ HIL_WIRE_COMMAND,
+ HIL_WIRE_DATA7,
+ HIL_WIRE_DATA6,
+ HIL_WIRE_DATA5,
+ HIL_WIRE_DATA4,
+ HIL_WIRE_DATA3,
+ HIL_WIRE_DATA2,
+ HIL_WIRE_DATA1,
+ HIL_WIRE_DATA0,
+ HIL_WIRE_PARITY,
+ HIL_WIRE_STOP
+};
+
+/* HP documentation uses these bit positions to refer to commands;
+ * we will call these "packets".
+ */
+enum hil_pkt_bitpos {
+ HIL_PKT_CMD = 0x00000800,
+ HIL_PKT_ADDR2 = 0x00000400,
+ HIL_PKT_ADDR1 = 0x00000200,
+ HIL_PKT_ADDR0 = 0x00000100,
+ HIL_PKT_ADDR_MASK = 0x00000700,
+ HIL_PKT_ADDR_SHIFT = 8,
+ HIL_PKT_DATA7 = 0x00000080,
+ HIL_PKT_DATA6 = 0x00000040,
+ HIL_PKT_DATA5 = 0x00000020,
+ HIL_PKT_DATA4 = 0x00000010,
+ HIL_PKT_DATA3 = 0x00000008,
+ HIL_PKT_DATA2 = 0x00000004,
+ HIL_PKT_DATA1 = 0x00000002,
+ HIL_PKT_DATA0 = 0x00000001,
+ HIL_PKT_DATA_MASK = 0x000000FF,
+ HIL_PKT_DATA_SHIFT = 0
+};
+
+/* The HIL MLC also has several error/status/control bits. We extend the
+ * "packet" to include these when direct access to the MLC is available,
+ * or emulate them in cases where they are not available.
+ *
+ * This way the device driver knows that the underlying MLC driver
+ * has had to deal with loop errors.
+ */
+enum hil_error_bitpos {
+ HIL_ERR_OB = 0x00000800, /* MLC is busy sending an auto-poll,
+ or we have filled up the output
+ buffer and must wait. */
+ HIL_ERR_INT = 0x00010000, /* A normal interrupt has occurred. */
+ HIL_ERR_NMI = 0x00020000, /* An NMI has occurred. */
+ HIL_ERR_LERR = 0x00040000, /* A poll didn't come back. */
+ HIL_ERR_PERR = 0x01000000, /* There was a Parity Error. */
+ HIL_ERR_FERR = 0x02000000, /* There was a Framing Error. */
+ HIL_ERR_FOF = 0x04000000 /* Input FIFO Overflowed. */
+};
+
+enum hil_control_bitpos {
+ HIL_CTRL_TEST = 0x00010000,
+ HIL_CTRL_IPF = 0x00040000,
+ HIL_CTRL_APE = 0x02000000
+};
+
+/* Bits 30,31 are unused, we use them to control write behavior. */
+#define HIL_DO_ALTER_CTRL 0x40000000 /* Write MSW of packet to control
+ before writing LSW to loop */
+#define HIL_CTRL_ONLY 0xc0000000 /* *Only* alter the control registers */
+
+/* This gives us a 32-bit "packet"
+ */
+typedef u32 hil_packet;
+
+
+/* HIL Loop commands
+ */
+enum hil_command {
+ HIL_CMD_IFC = 0x00, /* Interface Clear */
+ HIL_CMD_EPT = 0x01, /* Enter Pass-Thru Mode */
+ HIL_CMD_ELB = 0x02, /* Enter Loop-Back Mode */
+ HIL_CMD_IDD = 0x03, /* Identify and Describe */
+ HIL_CMD_DSR = 0x04, /* Device Soft Reset */
+ HIL_CMD_PST = 0x05, /* Perform Self Test */
+ HIL_CMD_RRG = 0x06, /* Read Register */
+ HIL_CMD_WRG = 0x07, /* Write Register */
+ HIL_CMD_ACF = 0x08, /* Auto Configure */
+ HIL_CMDID_ACF = 0x07, /* Auto Configure bits with incremented ID */
+ HIL_CMD_POL = 0x10, /* Poll */
+ HIL_CMDCT_POL = 0x0f, /* Poll command bits with item count */
+ HIL_CMD_RPL = 0x20, /* RePoll */
+ HIL_CMDCT_RPL = 0x0f, /* RePoll command bits with item count */
+ HIL_CMD_RNM = 0x30, /* Report Name */
+ HIL_CMD_RST = 0x31, /* Report Status */
+ HIL_CMD_EXD = 0x32, /* Extended Describe */
+ HIL_CMD_RSC = 0x33, /* Report Security Code */
+
+ /* 0x34 to 0x3c reserved for future use */
+
+ HIL_CMD_DKA = 0x3d, /* Disable Keyswitch Autorepeat */
+ HIL_CMD_EK1 = 0x3e, /* Enable Keyswitch Autorepeat 1 */
+ HIL_CMD_EK2 = 0x3f, /* Enable Keyswitch Autorepeat 2 */
+ HIL_CMD_PR1 = 0x40, /* Prompt1 */
+ HIL_CMD_PR2 = 0x41, /* Prompt2 */
+ HIL_CMD_PR3 = 0x42, /* Prompt3 */
+ HIL_CMD_PR4 = 0x43, /* Prompt4 */
+ HIL_CMD_PR5 = 0x44, /* Prompt5 */
+ HIL_CMD_PR6 = 0x45, /* Prompt6 */
+ HIL_CMD_PR7 = 0x46, /* Prompt7 */
+ HIL_CMD_PRM = 0x47, /* Prompt (General Purpose) */
+ HIL_CMD_AK1 = 0x48, /* Acknowlege1 */
+ HIL_CMD_AK2 = 0x49, /* Acknowlege2 */
+ HIL_CMD_AK3 = 0x4a, /* Acknowlege3 */
+ HIL_CMD_AK4 = 0x4b, /* Acknowlege4 */
+ HIL_CMD_AK5 = 0x4c, /* Acknowlege5 */
+ HIL_CMD_AK6 = 0x4d, /* Acknowlege6 */
+ HIL_CMD_AK7 = 0x4e, /* Acknowlege7 */
+ HIL_CMD_ACK = 0x4f, /* Acknowlege (General Purpose) */
+
+ /* 0x50 to 0x78 reserved for future use */
+ /* 0x80 to 0xEF device-specific commands */
+ /* 0xf0 to 0xf9 reserved for future use */
+
+ HIL_CMD_RIO = 0xfa, /* Register I/O Error */
+ HIL_CMD_SHR = 0xfb, /* System Hard Reset */
+ HIL_CMD_TER = 0xfc, /* Transmission Error */
+ HIL_CMD_CAE = 0xfd, /* Configuration Address Error */
+ HIL_CMD_DHR = 0xfe, /* Device Hard Reset */
+
+ /* 0xff is prohibited from use. */
+};
+
+
+/*
+ * Response "records" to HIL commands
+ */
+
+/* Device ID byte
+ */
+#define HIL_IDD_DID_TYPE_MASK 0xe0 /* Primary type bits */
+#define HIL_IDD_DID_TYPE_KB_INTEGRAL 0xa0 /* Integral keyboard */
+#define HIL_IDD_DID_TYPE_KB_ITF 0xc0 /* ITD keyboard */
+#define HIL_IDD_DID_TYPE_KB_RSVD 0xe0 /* Reserved keyboard type */
+#define HIL_IDD_DID_TYPE_KB_LANG_MASK 0x1f /* Keyboard locale bits */
+#define HIL_IDD_DID_KBLANG_USE_ESD 0x00 /* Use ESD Locale instead */
+#define HIL_IDD_DID_TYPE_ABS 0x80 /* Absolute Positioners */
+#define HIL_IDD_DID_ABS_RSVD1_MASK 0xf8 /* Reserved */
+#define HIL_IDD_DID_ABS_RSVD1 0x98
+#define HIL_IDD_DID_ABS_TABLET_MASK 0xf8 /* Tablets and digitizers */
+#define HIL_IDD_DID_ABS_TABLET 0x90
+#define HIL_IDD_DID_ABS_TSCREEN_MASK 0xfc /* Touch screens */
+#define HIL_IDD_DID_ABS_TSCREEN 0x8c
+#define HIL_IDD_DID_ABS_RSVD2_MASK 0xfc /* Reserved */
+#define HIL_IDD_DID_ABS_RSVD2 0x88
+#define HIL_IDD_DID_ABS_RSVD3_MASK 0xfc /* Reserved */
+#define HIL_IDD_DID_ABS_RSVD3 0x80
+#define HIL_IDD_DID_TYPE_REL 0x60 /* Relative Positioners */
+#define HIL_IDD_DID_REL_RSVD1_MASK 0xf0 /* Reserved */
+#define HIL_IDD_DID_REL_RSVD1 0x70
+#define HIL_IDD_DID_REL_RSVD2_MASK 0xfc /* Reserved */
+#define HIL_IDD_DID_REL_RSVD2 0x6c
+#define HIL_IDD_DID_REL_MOUSE_MASK 0xfc /* Mouse */
+#define HIL_IDD_DID_REL_MOUSE 0x68
+#define HIL_IDD_DID_REL_QUAD_MASK 0xf8 /* Other Quadrature Devices */
+#define HIL_IDD_DID_REL_QUAD 0x60
+#define HIL_IDD_DID_TYPE_CHAR 0x40 /* Character Entry */
+#define HIL_IDD_DID_CHAR_BARCODE_MASK 0xfc /* Barcode Reader */
+#define HIL_IDD_DID_CHAR_BARCODE 0x5c
+#define HIL_IDD_DID_CHAR_RSVD1_MASK 0xfc /* Reserved */
+#define HIL_IDD_DID_CHAR_RSVD1 0x58
+#define HIL_IDD_DID_CHAR_RSVD2_MASK 0xf8 /* Reserved */
+#define HIL_IDD_DID_CHAR_RSVD2 0x50
+#define HIL_IDD_DID_CHAR_RSVD3_MASK 0xf0 /* Reserved */
+#define HIL_IDD_DID_CHAR_RSVD3 0x40
+#define HIL_IDD_DID_TYPE_OTHER 0x20 /* Miscellaneous */
+#define HIL_IDD_DID_OTHER_RSVD1_MASK 0xf0 /* Reserved */
+#define HIL_IDD_DID_OTHER_RSVD1 0x30
+#define HIL_IDD_DID_OTHER_BARCODE_MASK 0xfc /* Tone Generator */
+#define HIL_IDD_DID_OTHER_BARCODE 0x2c
+#define HIL_IDD_DID_OTHER_RSVD2_MASK 0xfc /* Reserved */
+#define HIL_IDD_DID_OTHER_RSVD2 0x28
+#define HIL_IDD_DID_OTHER_RSVD3_MASK 0xf8 /* Reserved */
+#define HIL_IDD_DID_OTHER_RSVD3 0x20
+#define HIL_IDD_DID_TYPE_KEYPAD 0x00 /* Vectra Keyboard */
+
+/* IDD record header
+ */
+#define HIL_IDD_HEADER_AXSET_MASK 0x03 /* Number of axis in a set */
+#define HIL_IDD_HEADER_RSC 0x04 /* Supports RSC command */
+#define HIL_IDD_HEADER_EXD 0x08 /* Supports EXD command */
+#define HIL_IDD_HEADER_IOD 0x10 /* IOD byte to follow */
+#define HIL_IDD_HEADER_16BIT 0x20 /* 16 (vs. 8) bit resolution */
+#define HIL_IDD_HEADER_ABS 0x40 /* Reports Absolute Position */
+#define HIL_IDD_HEADER_2X_AXIS 0x80 /* Two sets of 1-3 axis */
+
+/* I/O Descriptor
+ */
+#define HIL_IDD_IOD_NBUTTON_MASK 0x07 /* Number of buttons */
+#define HIL_IDD_IOD_PROXIMITY 0x08 /* Proximity in/out events */
+#define HIL_IDD_IOD_PROMPT_MASK 0x70 /* Number of prompts/acks */
+#define HIL_IDD_IOD_PROMPT_SHIFT 4
+#define HIL_IDD_IOD_PROMPT 0x80 /* Generic prompt/ack */
+
+#define HIL_IDD_NUM_AXES_PER_SET(header_packet) \
+((header_packet) & HIL_IDD_HEADER_AXSET_MASK)
+
+#define HIL_IDD_NUM_AXSETS(header_packet) \
+(2 - !((header_packet) & HIL_IDD_HEADER_2X_AXIS))
+
+#define HIL_IDD_LEN(header_packet) \
+((4 - !(header_packet & HIL_IDD_HEADER_IOD) - \
+ 2 * !(HIL_IDD_NUM_AXES_PER_SET(header_packet))) + \
+ 2 * HIL_IDD_NUM_AXES_PER_SET(header_packet) * \
+ !!((header_packet) & HIL_IDD_HEADER_ABS))
+
+/* The following HIL_IDD_* macros assume you have an array of
+ * packets and/or unpacked 8-bit data in the order that they
+ * were received.
+ */
+
+#define HIL_IDD_AXIS_COUNTS_PER_M(header_ptr) \
+(!(HIL_IDD_NUM_AXSETS(*(header_ptr))) ? -1 : \
+(((*(header_ptr + 1) & HIL_PKT_DATA_MASK) + \
+ ((*(header_ptr + 2) & HIL_PKT_DATA_MASK)) << 8) \
+* ((*(header_ptr) & HIL_IDD_HEADER_16BIT) ? 100 : 1)))
+
+#define HIL_IDD_AXIS_MAX(header_ptr, __axnum) \
+((!(*(header_ptr) & HIL_IDD_HEADER_ABS) || \
+ (HIL_IDD_NUM_AXES_PER_SET(*(header_ptr)) <= __axnum)) ? 0 : \
+ ((HIL_PKT_DATA_MASK & *((header_ptr) + 3 + 2 * __axnum)) + \
+ ((HIL_PKT_DATA_MASK & *((header_ptr) + 4 + 2 * __axnum)) << 8)))
+
+#define HIL_IDD_IOD(header_ptr) \
+(*(header_ptr + HIL_IDD_LEN((*header_ptr)) - 1))
+
+#define HIL_IDD_HAS_GEN_PROMPT(header_ptr) \
+((*header_ptr & HIL_IDD_HEADER_IOD) && \
+ (HIL_IDD_IOD(header_ptr) & HIL_IDD_IOD_PROMPT))
+
+#define HIL_IDD_HAS_GEN_PROXIMITY(header_ptr) \
+((*header_ptr & HIL_IDD_HEADER_IOD) && \
+ (HIL_IDD_IOD(header_ptr) & HIL_IDD_IOD_PROXIMITY))
+
+#define HIL_IDD_NUM_BUTTONS(header_ptr) \
+((*header_ptr & HIL_IDD_HEADER_IOD) ? \
+ (HIL_IDD_IOD(header_ptr) & HIL_IDD_IOD_NBUTTON_MASK) : 0)
+
+#define HIL_IDD_NUM_PROMPTS(header_ptr) \
+((*header_ptr & HIL_IDD_HEADER_IOD) ? \
+ ((HIL_IDD_IOD(header_ptr) & HIL_IDD_IOD_NPROMPT_MASK) \
+ >> HIL_IDD_IOD_PROMPT_SHIFT) : 0)
+
+/* The response to HIL EXD commands -- the "extended describe record" */
+#define HIL_EXD_HEADER_WRG 0x03 /* Supports type2 WRG */
+#define HIL_EXD_HEADER_WRG_TYPE1 0x01 /* Supports type1 WRG */
+#define HIL_EXD_HEADER_WRG_TYPE2 0x02 /* Supports type2 WRG */
+#define HIL_EXD_HEADER_RRG 0x04 /* Supports RRG command */
+#define HIL_EXD_HEADER_RNM 0x10 /* Supports RNM command */
+#define HIL_EXD_HEADER_RST 0x20 /* Supports RST command */
+#define HIL_EXD_HEADER_LOCALE 0x40 /* Contains locale code */
+
+#define HIL_EXD_NUM_RRG(header_ptr) \
+((*header_ptr & HIL_EXD_HEADER_RRG) ? \
+ (*(header_ptr + 1) & HIL_PKT_DATA_MASK) : 0)
+
+#define HIL_EXD_NUM_WWG(header_ptr) \
+((*header_ptr & HIL_EXD_HEADER_WRG) ? \
+ (*(header_ptr + 2 - !(*header_ptr & HIL_EXD_HEADER_RRG)) & \
+ HIL_PKT_DATA_MASK) : 0)
+
+#define HIL_EXD_LEN(header_ptr) \
+(!!(*header_ptr & HIL_EXD_HEADER_RRG) + \
+ !!(*header_ptr & HIL_EXD_HEADER_WRG) + \
+ !!(*header_ptr & HIL_EXD_HEADER_LOCALE) + \
+ 2 * !!(*header_ptr & HIL_EXD_HEADER_WRG_TYPE2) + 1)
+
+#define HIL_EXD_LOCALE(header_ptr) \
+(!(*header_ptr & HIL_EXD_HEADER_LOCALE) ? -1 : \
+ (*(header_ptr + HIL_EXD_LEN(header_ptr) - 1) & HIL_PKT_DATA_MASK))
+
+#define HIL_EXD_WRG_TYPE2_LEN(header_ptr) \
+(!(*header_ptr & HIL_EXD_HEADER_WRG_TYPE2) ? -1 : \
+ (*(header_ptr + HIL_EXD_LEN(header_ptr) - 2 - \
+ !!(*header_ptr & HIL_EXD_HEADER_LOCALE)) & HIL_PKT_DATA_MASK) + \
+ ((*(header_ptr + HIL_EXD_LEN(header_ptr) - 1 - \
+ !!(*header_ptr & HIL_EXD_HEADER_LOCALE)) & HIL_PKT_DATA_MASK) << 8))
+
+/* Device locale codes. */
+
+/* Last defined locale code. Everything above this is "Reserved",
+ and note that this same table applies to the Device ID Byte where
+ keyboards may have a nationality code which is only 5 bits. */
+#define HIL_LOCALE_MAX 0x1f
+
+/* Map to hopefully useful strings. I was trying to make these look
+ like locale.aliases strings do; maybe that isn't the right table to
+ emulate. In either case, I didn't have much to work on. */
+#define HIL_LOCALE_MAP \
+"", /* 0x00 Reserved */ \
+"", /* 0x01 Reserved */ \
+"", /* 0x02 Reserved */ \
+"swiss.french", /* 0x03 Swiss/French */ \
+"portuguese", /* 0x04 Portuguese */ \
+"arabic", /* 0x05 Arabic */ \
+"hebrew", /* 0x06 Hebrew */ \
+"english.canadian", /* 0x07 Canadian English */ \
+"turkish", /* 0x08 Turkish */ \
+"greek", /* 0x09 Greek */ \
+"thai", /* 0x0a Thai (Thailand) */ \
+"italian", /* 0x0b Italian */ \
+"korean", /* 0x0c Hangul (Korea) */ \
+"dutch", /* 0x0d Dutch */ \
+"swedish", /* 0x0e Swedish */ \
+"german", /* 0x0f German */ \
+"chinese", /* 0x10 Chinese-PRC */ \
+"chinese", /* 0x11 Chinese-ROC */ \
+"swiss.french", /* 0x12 Swiss/French II */ \
+"spanish", /* 0x13 Spanish */ \
+"swiss.german", /* 0x14 Swiss/German II */ \
+"flemish", /* 0x15 Belgian (Flemish) */ \
+"finnish", /* 0x16 Finnish */ \
+"english.uk", /* 0x17 United Kingdom */ \
+"french.canadian", /* 0x18 French/Canadian */ \
+"swiss.german", /* 0x19 Swiss/German */ \
+"norwegian", /* 0x1a Norwegian */ \
+"french", /* 0x1b French */ \
+"danish", /* 0x1c Danish */ \
+"japanese", /* 0x1d Katakana */ \
+"spanish", /* 0x1e Latin American/Spanish*/\
+"english.us" /* 0x1f United States */ \
+
+
+/* HIL keycodes */
+#define HIL_KEYCODES_SET1_TBLSIZE 128
+#define HIL_KEYCODES_SET1 \
+ KEY_5, KEY_RESERVED, KEY_RIGHTALT, KEY_LEFTALT, \
+ KEY_RIGHTSHIFT, KEY_LEFTSHIFT, KEY_LEFTCTRL, KEY_SYSRQ, \
+ KEY_KP4, KEY_KP8, KEY_KP5, KEY_KP9, \
+ KEY_KP6, KEY_KP7, KEY_KPCOMMA, KEY_KPENTER, \
+ KEY_KP1, KEY_KPSLASH, KEY_KP2, KEY_KPPLUS, \
+ KEY_KP3, KEY_KPASTERISK, KEY_KP0, KEY_KPMINUS, \
+ KEY_B, KEY_V, KEY_C, KEY_X, \
+ KEY_Z, KEY_RESERVED, KEY_RESERVED, KEY_ESC, \
+ KEY_6, KEY_F10, KEY_3, KEY_F11, \
+ KEY_KPDOT, KEY_F9, KEY_TAB /*KP*/, KEY_F12, \
+ KEY_H, KEY_G, KEY_F, KEY_D, \
+ KEY_S, KEY_A, KEY_RESERVED, KEY_CAPSLOCK, \
+ KEY_U, KEY_Y, KEY_T, KEY_R, \
+ KEY_E, KEY_W, KEY_Q, KEY_TAB, \
+ KEY_7, KEY_6, KEY_5, KEY_4, \
+ KEY_3, KEY_2, KEY_1, KEY_GRAVE, \
+ KEY_F13, KEY_F14, KEY_F15, KEY_F16, \
+ KEY_F17, KEY_F18, KEY_F19, KEY_F20, \
+ KEY_MENU, KEY_F4, KEY_F3, KEY_F2, \
+ KEY_F1, KEY_VOLUMEUP, KEY_STOP, KEY_SENDFILE, \
+ KEY_SYSRQ, KEY_F5, KEY_F6, KEY_F7, \
+ KEY_F8, KEY_VOLUMEDOWN, KEY_DEL_EOL, KEY_DEL_EOS, \
+ KEY_8, KEY_9, KEY_0, KEY_MINUS, \
+ KEY_EQUAL, KEY_BACKSPACE, KEY_INS_LINE, KEY_DEL_LINE, \
+ KEY_I, KEY_O, KEY_P, KEY_LEFTBRACE, \
+ KEY_RIGHTBRACE, KEY_BACKSLASH, KEY_INSERT, KEY_DELETE, \
+ KEY_J, KEY_K, KEY_L, KEY_SEMICOLON, \
+ KEY_APOSTROPHE, KEY_ENTER, KEY_HOME, KEY_PAGEUP, \
+ KEY_M, KEY_COMMA, KEY_DOT, KEY_SLASH, \
+ KEY_BACKSLASH, KEY_SELECT, KEY_102ND, KEY_PAGEDOWN, \
+ KEY_N, KEY_SPACE, KEY_NEXT, KEY_RESERVED, \
+ KEY_LEFT, KEY_DOWN, KEY_UP, KEY_RIGHT
+
+
+#define HIL_KEYCODES_SET3_TBLSIZE 128
+#define HIL_KEYCODES_SET3 \
+ KEY_RESERVED, KEY_ESC, KEY_1, KEY_2, \
+ KEY_3, KEY_4, KEY_5, KEY_6, \
+ KEY_7, KEY_8, KEY_9, KEY_0, \
+ KEY_MINUS, KEY_EQUAL, KEY_BACKSPACE, KEY_TAB, \
+ KEY_Q, KEY_W, KEY_E, KEY_R, \
+ KEY_T, KEY_Y, KEY_U, KEY_I, \
+ KEY_O, KEY_P, KEY_LEFTBRACE, KEY_RIGHTBRACE, \
+ KEY_ENTER, KEY_LEFTCTRL, KEY_A, KEY_S, \
+ KEY_D, KEY_F, KEY_G, KEY_H, \
+ KEY_J, KEY_K, KEY_L, KEY_SEMICOLON, \
+ KEY_APOSTROPHE,KEY_GRAVE, KEY_LEFTSHIFT, KEY_BACKSLASH, \
+ KEY_Z, KEY_X, KEY_C, KEY_V, \
+ KEY_B, KEY_N, KEY_M, KEY_COMMA, \
+ KEY_DOT, KEY_SLASH, KEY_RIGHTSHIFT, KEY_KPASTERISK, \
+ KEY_LEFTALT, KEY_SPACE, KEY_CAPSLOCK, KEY_F1, \
+ KEY_F2, KEY_F3, KEY_F4, KEY_F5, \
+ KEY_F6, KEY_F7, KEY_F8, KEY_F9, \
+ KEY_F10, KEY_NUMLOCK, KEY_SCROLLLOCK, KEY_KP7, \
+ KEY_KP8, KEY_KP9, KEY_KPMINUS, KEY_KP4, \
+ KEY_KP5, KEY_KP6, KEY_KPPLUS, KEY_KP1, \
+ KEY_KP2, KEY_KP3, KEY_KP0, KEY_KPDOT, \
+ KEY_SYSRQ, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, \
+ KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, \
+ KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, \
+ KEY_UP, KEY_LEFT, KEY_DOWN, KEY_RIGHT, \
+ KEY_HOME, KEY_PAGEUP, KEY_END, KEY_PAGEDOWN, \
+ KEY_INSERT, KEY_DELETE, KEY_102ND, KEY_RESERVED, \
+ KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, \
+ KEY_F1, KEY_F2, KEY_F3, KEY_F4, \
+ KEY_F5, KEY_F6, KEY_F7, KEY_F8, \
+ KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, \
+ KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED
+
+
+/* Response to POL command, the "poll record header" */
+
+#define HIL_POL_NUM_AXES_MASK 0x03 /* Number of axis reported */
+#define HIL_POL_CTS 0x04 /* Device ready to receive data */
+#define HIL_POL_STATUS_PENDING 0x08 /* Device has status to report */
+#define HIL_POL_CHARTYPE_MASK 0x70 /* Type of character data to follow */
+#define HIL_POL_CHARTYPE_NONE 0x00 /* No character data to follow */
+#define HIL_POL_CHARTYPE_RSVD1 0x10 /* Reserved Set 1 */
+#define HIL_POL_CHARTYPE_ASCII 0x20 /* U.S. ASCII */
+#define HIL_POL_CHARTYPE_BINARY 0x30 /* Binary data */
+#define HIL_POL_CHARTYPE_SET1 0x40 /* Keycode Set 1 */
+#define HIL_POL_CHARTYPE_RSVD2 0x50 /* Reserved Set 2 */
+#define HIL_POL_CHARTYPE_SET2 0x60 /* Keycode Set 2 */
+#define HIL_POL_CHARTYPE_SET3 0x70 /* Keycode Set 3 */
+#define HIL_POL_AXIS_ALT 0x80 /* Data is from axis set 2 */
+
+
+#endif /* _HIL_H_ */
--- /dev/null
+/*
+ * HP i8042 System Device Controller -- header
+ *
+ * Copyright (c) 2001 Brian S. Julin
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions, and the following disclaimer,
+ * without modification.
+ * 2. The name of the author may not be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL").
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
+ * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ *
+ * References:
+ *
+ * HP-HIL Technical Reference Manual. Hewlett Packard Product No. 45918A
+ *
+ * System Device Controller Microprocessor Firmware Theory of Operation
+ * for Part Number 1820-4784 Revision B. Dwg No. A-1820-4784-2
+ *
+ */
+
+#ifndef _LINUX_HP_SDC_H
+#define _LINUX_HP_SDC_H
+
+#include <linux/interrupt.h>
+#include <linux/types.h>
+#include <linux/time.h>
+#include <linux/timer.h>
+#if defined(__hppa__)
+#include <asm/hardware.h>
+#endif
+
+
+/* No 4X status reads take longer than this (in usec).
+ */
+#define HP_SDC_MAX_REG_DELAY 20000
+
+typedef void (hp_sdc_irqhook) (int irq, void *dev_id,
+ uint8_t status, uint8_t data);
+
+int hp_sdc_request_timer_irq(hp_sdc_irqhook *callback);
+int hp_sdc_request_hil_irq(hp_sdc_irqhook *callback);
+int hp_sdc_request_cooked_irq(hp_sdc_irqhook *callback);
+int hp_sdc_release_timer_irq(hp_sdc_irqhook *callback);
+int hp_sdc_release_hil_irq(hp_sdc_irqhook *callback);
+int hp_sdc_release_cooked_irq(hp_sdc_irqhook *callback);
+
+typedef struct {
+ int actidx; /* Start of act. Acts are atomic WRT I/O to SDC */
+ int idx; /* Index within the act */
+ int endidx; /* transaction is over and done if idx == endidx */
+ uint8_t *seq; /* commands/data for the transaction */
+ union {
+ hp_sdc_irqhook *irqhook; /* Callback, isr or tasklet context */
+ struct semaphore *semaphore; /* Semaphore to sleep on. */
+ } act;
+} hp_sdc_transaction;
+int hp_sdc_enqueue_transaction(hp_sdc_transaction *this);
+int hp_sdc_dequeue_transaction(hp_sdc_transaction *this);
+
+/* The HP_SDC_ACT* values are peculiar to this driver.
+ * Nuance: never HP_SDC_ACT_DATAIN | HP_SDC_ACT_DEALLOC, use another
+ * act to perform the dealloc.
+ */
+#define HP_SDC_ACT_PRECMD 0x01 /* Send a command first */
+#define HP_SDC_ACT_DATAREG 0x02 /* Set data registers */
+#define HP_SDC_ACT_DATAOUT 0x04 /* Send data bytes */
+#define HP_SDC_ACT_POSTCMD 0x08 /* Send command after */
+#define HP_SDC_ACT_DATAIN 0x10 /* Collect data after */
+#define HP_SDC_ACT_DURING 0x1f
+#define HP_SDC_ACT_SEMAPHORE 0x20 /* Raise semaphore after */
+#define HP_SDC_ACT_CALLBACK 0x40 /* Pass data to IRQ handler */
+#define HP_SDC_ACT_DEALLOC 0x80 /* Destroy transaction after */
+#define HP_SDC_ACT_AFTER 0xe0
+#define HP_SDC_ACT_DEAD 0x60 /* Act timed out. */
+
+/* Rest of the flags are straightforward representation of the SDC interface */
+#define HP_SDC_STATUS_IBF 0x02 /* Input buffer full */
+
+#define HP_SDC_STATUS_IRQMASK 0xf0 /* Bits containing "level 1" irq */
+#define HP_SDC_STATUS_PERIODIC 0x10 /* Periodic 10ms timer */
+#define HP_SDC_STATUS_USERTIMER 0x20 /* "Special purpose" timer */
+#define HP_SDC_STATUS_TIMER 0x30 /* Both PERIODIC and USERTIMER */
+#define HP_SDC_STATUS_REG 0x40 /* Data from an i8042 register */
+#define HP_SDC_STATUS_HILCMD 0x50 /* Command from HIL MLC */
+#define HP_SDC_STATUS_HILDATA 0x60 /* Data from HIL MLC */
+#define HP_SDC_STATUS_PUP 0x70 /* Sucessful power-up self test */
+#define HP_SDC_STATUS_KCOOKED 0x80 /* Key from cooked kbd */
+#define HP_SDC_STATUS_KRPG 0xc0 /* Key from Repeat Gen */
+#define HP_SDC_STATUS_KMOD_SUP 0x10 /* Shift key is up */
+#define HP_SDC_STATUS_KMOD_CUP 0x20 /* Control key is up */
+
+#define HP_SDC_NMISTATUS_FHS 0x40 /* NMI is a fast handshake irq */
+
+/* Internal i8042 registers (there are more, but they are not too useful). */
+
+#define HP_SDC_USE 0x02 /* Resource usage (including OB bit) */
+#define HP_SDC_IM 0x04 /* Interrupt mask */
+#define HP_SDC_CFG 0x11 /* Configuration register */
+#define HP_SDC_KBLANGUAGE 0x12 /* Keyboard language */
+
+#define HP_SDC_D0 0x70 /* General purpose data buffer 0 */
+#define HP_SDC_D1 0x71 /* General purpose data buffer 1 */
+#define HP_SDC_D2 0x72 /* General purpose data buffer 2 */
+#define HP_SDC_D3 0x73 /* General purpose data buffer 3 */
+#define HP_SDC_VT1 0x74 /* Timer for voice 1 */
+#define HP_SDC_VT2 0x75 /* Timer for voice 2 */
+#define HP_SDC_VT3 0x76 /* Timer for voice 3 */
+#define HP_SDC_VT4 0x77 /* Timer for voice 4 */
+#define HP_SDC_KBN 0x78 /* Which HIL devs are Nimitz */
+#define HP_SDC_KBC 0x79 /* Which HIL devs are cooked kbds */
+#define HP_SDC_LPS 0x7a /* i8042's view of HIL status */
+#define HP_SDC_LPC 0x7b /* i8042's view of HIL "control" */
+#define HP_SDC_RSV 0x7c /* Reserved "for testing" */
+#define HP_SDC_LPR 0x7d /* i8042 count of HIL reconfigs */
+#define HP_SDC_XTD 0x7e /* "Extended Configuration" register */
+#define HP_SDC_STR 0x7f /* i8042 self-test result */
+
+/* Bitfields for above registers */
+#define HP_SDC_USE_LOOP 0x04 /* Command is currently on the loop. */
+
+#define HP_SDC_IM_MASK 0x1f /* these bits not part of cmd/status */
+#define HP_SDC_IM_FH 0x10 /* Mask the fast handshake irq */
+#define HP_SDC_IM_PT 0x08 /* Mask the periodic timer irq */
+#define HP_SDC_IM_TIMERS 0x04 /* Mask the MT/DT/CT irq */
+#define HP_SDC_IM_RESET 0x02 /* Mask the reset key irq */
+#define HP_SDC_IM_HIL 0x01 /* Mask the HIL MLC irq */
+
+#define HP_SDC_CFG_ROLLOVER 0x08 /* WTF is "N-key rollover"? */
+#define HP_SDC_CFG_KBD 0x10 /* There is a keyboard */
+#define HP_SDC_CFG_NEW 0x20 /* Supports/uses HIL MLC */
+#define HP_SDC_CFG_KBD_OLD 0x03 /* keyboard code for non-HIL */
+#define HP_SDC_CFG_KBD_NEW 0x07 /* keyboard code from HIL autoconfig */
+#define HP_SDC_CFG_REV 0x40 /* Code revision bit */
+#define HP_SDC_CFG_IDPROM 0x80 /* IDPROM present in kbd (not HIL) */
+
+#define HP_SDC_LPS_NDEV 0x07 /* # devices autoconfigured on HIL */
+#define HP_SDC_LPS_ACSUCC 0x08 /* loop autoconfigured successfully */
+#define HP_SDC_LPS_ACFAIL 0x80 /* last loop autoconfigure failed */
+
+#define HP_SDC_LPC_APE_IPF 0x01 /* HIL MLC APE/IPF (autopoll) set */
+#define HP_SDC_LPC_ARCONERR 0x02 /* i8042 autoreconfigs loop on err */
+#define HP_SDC_LPC_ARCQUIET 0x03 /* i8042 doesn't report autoreconfigs*/
+#define HP_SDC_LPC_COOK 0x10 /* i8042 cooks devices in _KBN */
+#define HP_SDC_LPC_RC 0x80 /* causes autoreconfig */
+
+#define HP_SDC_XTD_REV 0x07 /* contains revision code */
+#define HP_SDC_XTD_REV_STRINGS(val, str) \
+switch (val) { \
+ case 0x1: str = "1820-3712"; break; \
+ case 0x2: str = "1820-4379"; break; \
+ case 0x3: str = "1820-4784"; break; \
+ default: str = "unknown"; \
+};
+#define HP_SDC_XTD_BEEPER 0x08 /* TI SN76494 beeper available */
+#define HP_SDC_XTD_BBRTC 0x20 /* OKI MSM-58321 BBRTC present */
+
+#define HP_SDC_CMD_LOAD_RT 0x31 /* Load real time (from 8042) */
+#define HP_SDC_CMD_LOAD_FHS 0x36 /* Load the fast handshake timer */
+#define HP_SDC_CMD_LOAD_MT 0x38 /* Load the match timer */
+#define HP_SDC_CMD_LOAD_DT 0x3B /* Load the delay timer */
+#define HP_SDC_CMD_LOAD_CT 0x3E /* Load the cycle timer */
+
+#define HP_SDC_CMD_SET_IM 0x40 /* 010xxxxx == set irq mask */
+
+/* The documents provided do not explicitly state that all registers betweem
+ * 0x01 and 0x1f inclusive can be read by sending their register index as a
+ * command, but this is implied and appears to be the case.
+ */
+#define HP_SDC_CMD_READ_RAM 0x00 /* Load from i8042 RAM (autoinc) */
+#define HP_SDC_CMD_READ_USE 0x02 /* Undocumented! Load from usage reg */
+#define HP_SDC_CMD_READ_IM 0x04 /* Load current interrupt mask */
+#define HP_SDC_CMD_READ_KCC 0x11 /* Load primary kbd config code */
+#define HP_SDC_CMD_READ_KLC 0x12 /* Load primary kbd language code */
+#define HP_SDC_CMD_READ_T1 0x13 /* Load timer output buffer byte 1 */
+#define HP_SDC_CMD_READ_T2 0x14 /* Load timer output buffer byte 1 */
+#define HP_SDC_CMD_READ_T3 0x15 /* Load timer output buffer byte 1 */
+#define HP_SDC_CMD_READ_T4 0x16 /* Load timer output buffer byte 1 */
+#define HP_SDC_CMD_READ_T5 0x17 /* Load timer output buffer byte 1 */
+#define HP_SDC_CMD_READ_D0 0xf0 /* Load from i8042 RAM location 0x70 */
+#define HP_SDC_CMD_READ_D1 0xf1 /* Load from i8042 RAM location 0x71 */
+#define HP_SDC_CMD_READ_D2 0xf2 /* Load from i8042 RAM location 0x72 */
+#define HP_SDC_CMD_READ_D3 0xf3 /* Load from i8042 RAM location 0x73 */
+#define HP_SDC_CMD_READ_VT1 0xf4 /* Load from i8042 RAM location 0x74 */
+#define HP_SDC_CMD_READ_VT2 0xf5 /* Load from i8042 RAM location 0x75 */
+#define HP_SDC_CMD_READ_VT3 0xf6 /* Load from i8042 RAM location 0x76 */
+#define HP_SDC_CMD_READ_VT4 0xf7 /* Load from i8042 RAM location 0x77 */
+#define HP_SDC_CMD_READ_KBN 0xf8 /* Load from i8042 RAM location 0x78 */
+#define HP_SDC_CMD_READ_KBC 0xf9 /* Load from i8042 RAM location 0x79 */
+#define HP_SDC_CMD_READ_LPS 0xfa /* Load from i8042 RAM location 0x7a */
+#define HP_SDC_CMD_READ_LPC 0xfb /* Load from i8042 RAM location 0x7b */
+#define HP_SDC_CMD_READ_RSV 0xfc /* Load from i8042 RAM location 0x7c */
+#define HP_SDC_CMD_READ_LPR 0xfd /* Load from i8042 RAM location 0x7d */
+#define HP_SDC_CMD_READ_XTD 0xfe /* Load from i8042 RAM location 0x7e */
+#define HP_SDC_CMD_READ_STR 0xff /* Load from i8042 RAM location 0x7f */
+
+#define HP_SDC_CMD_SET_ARD 0xA0 /* Set emulated autorepeat delay */
+#define HP_SDC_CMD_SET_ARR 0xA2 /* Set emulated autorepeat rate */
+#define HP_SDC_CMD_SET_BELL 0xA3 /* Set voice 3 params for "beep" cmd */
+#define HP_SDC_CMD_SET_RPGR 0xA6 /* Set "RPG" irq rate (doesn't work) */
+#define HP_SDC_CMD_SET_RTMS 0xAD /* Set the RTC time (milliseconds) */
+#define HP_SDC_CMD_SET_RTD 0xAF /* Set the RTC time (days) */
+#define HP_SDC_CMD_SET_FHS 0xB2 /* Set fast handshake timer */
+#define HP_SDC_CMD_SET_MT 0xB4 /* Set match timer */
+#define HP_SDC_CMD_SET_DT 0xB7 /* Set delay timer */
+#define HP_SDC_CMD_SET_CT 0xBA /* Set cycle timer */
+#define HP_SDC_CMD_SET_RAMP 0xC1 /* Reset READ_RAM autoinc counter */
+#define HP_SDC_CMD_SET_D0 0xe0 /* Load to i8042 RAM location 0x70 */
+#define HP_SDC_CMD_SET_D1 0xe1 /* Load to i8042 RAM location 0x71 */
+#define HP_SDC_CMD_SET_D2 0xe2 /* Load to i8042 RAM location 0x72 */
+#define HP_SDC_CMD_SET_D3 0xe3 /* Load to i8042 RAM location 0x73 */
+#define HP_SDC_CMD_SET_VT1 0xe4 /* Load to i8042 RAM location 0x74 */
+#define HP_SDC_CMD_SET_VT2 0xe5 /* Load to i8042 RAM location 0x75 */
+#define HP_SDC_CMD_SET_VT3 0xe6 /* Load to i8042 RAM location 0x76 */
+#define HP_SDC_CMD_SET_VT4 0xe7 /* Load to i8042 RAM location 0x77 */
+#define HP_SDC_CMD_SET_KBN 0xe8 /* Load to i8042 RAM location 0x78 */
+#define HP_SDC_CMD_SET_KBC 0xe9 /* Load to i8042 RAM location 0x79 */
+#define HP_SDC_CMD_SET_LPS 0xea /* Load to i8042 RAM location 0x7a */
+#define HP_SDC_CMD_SET_LPC 0xeb /* Load to i8042 RAM location 0x7b */
+#define HP_SDC_CMD_SET_RSV 0xec /* Load to i8042 RAM location 0x7c */
+#define HP_SDC_CMD_SET_LPR 0xed /* Load to i8042 RAM location 0x7d */
+#define HP_SDC_CMD_SET_XTD 0xee /* Load to i8042 RAM location 0x7e */
+#define HP_SDC_CMD_SET_STR 0xef /* Load to i8042 RAM location 0x7f */
+
+#define HP_SDC_CMD_DO_RTCW 0xc2 /* i8042 RAM 0x70 --> RTC */
+#define HP_SDC_CMD_DO_RTCR 0xc3 /* RTC[0x70 0:3] --> irq/status/data */
+#define HP_SDC_CMD_DO_BEEP 0xc4 /* i8042 RAM 0x70-74 --> beeper,VT3 */
+#define HP_SDC_CMD_DO_HIL 0xc5 /* i8042 RAM 0x70-73 -->
+ HIL MLC R0,R1 i8042 HIL watchdog */
+
+/* Values used to (de)mangle input/output to/from the HIL MLC */
+#define HP_SDC_DATA 0x40 /* Data from an 8042 register */
+#define HP_SDC_HIL_CMD 0x50 /* Data from HIL MLC R1/8042 */
+#define HP_SDC_HIL_R1MASK 0x0f /* Contents of HIL MLC R1 0:3 */
+#define HP_SDC_HIL_AUTO 0x10 /* Set if POL results from i8042 */
+#define HP_SDC_HIL_ISERR 0x80 /* Has meaning as in next 4 values */
+#define HP_SDC_HIL_RC_DONE 0x80 /* i8042 auto-configured loop */
+#define HP_SDC_HIL_ERR 0x81 /* HIL MLC R2 had a bit set */
+#define HP_SDC_HIL_TO 0x82 /* i8042 HIL watchdog expired */
+#define HP_SDC_HIL_RC 0x84 /* i8042 is auto-configuring loop */
+#define HP_SDC_HIL_DAT 0x60 /* Data from HIL MLC R0 */
+
+
+typedef struct {
+ rwlock_t ibf_lock;
+ rwlock_t lock; /* user/tasklet lock */
+ rwlock_t rtq_lock; /* isr/tasklet lock */
+ rwlock_t hook_lock; /* isr/user lock for handler add/del */
+
+ unsigned int irq, nmi; /* Our IRQ lines */
+ unsigned long base_io, status_io, data_io; /* Our IO ports */
+
+ uint8_t im; /* Interrupt mask */
+ int set_im; /* Interrupt mask needs to be set. */
+
+ int ibf; /* Last known status of IBF flag */
+ uint8_t wi; /* current i8042 write index */
+ uint8_t r7[4]; /* current i8042[0x70 - 0x74] values */
+ uint8_t r11, r7e; /* Values from version/revision regs */
+
+ hp_sdc_irqhook *timer, *reg, *hil, *pup, *cooked;
+
+#define HP_SDC_QUEUE_LEN 16
+ hp_sdc_transaction *tq[HP_SDC_QUEUE_LEN]; /* All pending read/writes */
+
+ int rcurr, rqty; /* Current read transact in process */
+ struct timeval rtv; /* Time when current read started */
+ int wcurr; /* Current write transact in process */
+
+ int dev_err; /* carries status from registration */
+#if defined(__hppa__)
+ struct parisc_device *dev;
+#elif defined(__mc68000__)
+ void *dev;
+#else
+#error No support for device registration on this arch yet.
+#endif
+
+ struct timer_list kicker; /* Keeps below task alive */
+ struct tasklet_struct task;
+
+} hp_i8042_sdc;
+
+#endif /* _LINUX_HP_SDC_H */
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