patch-2.4.20 linux-2.4.20/drivers/hil/hil_kbd.c
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- Lines: 459
- Date:
Thu Nov 28 15:53:12 2002
- Orig file:
linux-2.4.19/drivers/hil/hil_kbd.c
- Orig date:
Wed Dec 31 16:00:00 1969
diff -urN linux-2.4.19/drivers/hil/hil_kbd.c linux-2.4.20/drivers/hil/hil_kbd.c
@@ -0,0 +1,458 @@
+/*
+ * Generic linux-input device driver for keyboard devices
+ *
+ * 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
+ *
+ */
+
+#include <linux/hil.h>
+#include <linux/input.h>
+#include <linux/serio.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+
+#ifdef DEBUG /* DEBUG */
+#undef input_report_key
+#define input_report_key(a,b,c) { printk("input_report_key(%p, %d, %d)\n", a, b, !!(c)); input_event(a, EV_KEY, b, !!(c)); }
+#endif
+
+#define PREFIX "HIL KEYB: "
+#define HIL_GENERIC_NAME "generic HIL keyboard device"
+
+MODULE_AUTHOR("Brian S. Julin <bri@calyx.com>");
+MODULE_DESCRIPTION(HIL_GENERIC_NAME " driver");
+MODULE_LICENSE("Dual BSD/GPL");
+
+#define HIL_KBD_MAX_LENGTH 16
+
+#define HIL_KBD_SET1_UPBIT 0x01
+#define HIL_KBD_SET1_SHIFT 1
+
+static uint8_t hil_kbd_set1[128] = {
+ 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_UNKNOWN, 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_INTL1, KEY_INTL2, KEY_INTL3, KEY_INTL4, /*Buttons*/
+ KEY_INTL5, KEY_INTL6, KEY_INTL7, KEY_INTL8,
+ KEY_MENU, KEY_F4, KEY_F3, KEY_F2,
+ KEY_F1, KEY_VOLUMEUP, KEY_STOP, KEY_SENDFILE/*Enter/Print*/,
+ KEY_SYSRQ, KEY_F5, KEY_F6, KEY_F7,
+ KEY_F8, KEY_VOLUMEDOWN, KEY_CUT /*CLEAR_LINE*/, KEY_REFRESH /*CLEAR_DISPLAY*/,
+ KEY_8, KEY_9, KEY_0, KEY_MINUS,
+ KEY_EQUAL, KEY_BACKSPACE, KEY_INSERT/*KPINSERT_LINE*/, KEY_DELETE /*KPDELETE_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_SCROLLUP,
+ KEY_M, KEY_COMMA, KEY_DOT, KEY_SLASH,
+ KEY_RESERVED, KEY_OPEN/*Select*/,KEY_RESERVED,KEY_SCROLLDOWN/*KPNEXT*/,
+ KEY_N, KEY_SPACE, KEY_SCROLLDOWN/*Next*/, KEY_UNKNOWN,
+ KEY_LEFT, KEY_DOWN, KEY_UP, KEY_RIGHT
+};
+
+#define HIL_KBD_SET2_UPBIT 0x01
+#define HIL_KBD_SET2_SHIFT 1
+
+/* Set2 is user defined */
+
+#define HIL_KBD_SET3_UPBIT 0x80
+#define HIL_KBD_SET3_SHIFT 0
+
+static uint8_t hil_kbd_set3[128] = {
+ 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_UNKNOWN, KEY_UNKNOWN,
+ 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
+};
+
+static char *hil_language[] = { HIL_LOCALE_MAP };
+
+struct hil_kbd {
+ struct input_dev dev;
+ struct serio *serio;
+
+ /* Input buffer and index for packets from HIL bus. */
+ hil_packet data[HIL_KBD_MAX_LENGTH];
+ int idx4; /* four counts per packet */
+
+ /* Raw device info records from HIL bus, see hil.h for fields. */
+ char idd[HIL_KBD_MAX_LENGTH]; /* DID byte and IDD record */
+ char rsc[HIL_KBD_MAX_LENGTH]; /* RSC record */
+ char exd[HIL_KBD_MAX_LENGTH]; /* EXD record */
+ char rnm[HIL_KBD_MAX_LENGTH + 1]; /* RNM record + NULL term. */
+
+ /* Something to sleep around with. */
+ struct semaphore sem;
+};
+
+/* Process a complete packet after transfer from the HIL */
+static void hil_kbd_process_record(struct hil_kbd *kbd)
+{
+ struct input_dev *dev = &kbd->dev;
+ hil_packet *data = kbd->data;
+ hil_packet p;
+ int idx, i, cnt;
+
+ idx = kbd->idx4/4;
+ p = data[idx - 1];
+
+ if ((p & ~HIL_CMDCT_POL) ==
+ (HIL_ERR_INT | HIL_PKT_CMD | HIL_CMD_POL)) goto report;
+ if ((p & ~HIL_CMDCT_RPL) ==
+ (HIL_ERR_INT | HIL_PKT_CMD | HIL_CMD_RPL)) goto report;
+
+ /* Not a poll response. See if we are loading config records. */
+ switch (p & HIL_PKT_DATA_MASK) {
+ case HIL_CMD_IDD:
+ for (i = 0; i < idx; i++)
+ kbd->idd[i] = kbd->data[i] & HIL_PKT_DATA_MASK;
+ for (; i < HIL_KBD_MAX_LENGTH; i++)
+ kbd->idd[i] = 0;
+ break;
+ case HIL_CMD_RSC:
+ for (i = 0; i < idx; i++)
+ kbd->rsc[i] = kbd->data[i] & HIL_PKT_DATA_MASK;
+ for (; i < HIL_KBD_MAX_LENGTH; i++)
+ kbd->rsc[i] = 0;
+ break;
+ case HIL_CMD_EXD:
+ for (i = 0; i < idx; i++)
+ kbd->exd[i] = kbd->data[i] & HIL_PKT_DATA_MASK;
+ for (; i < HIL_KBD_MAX_LENGTH; i++)
+ kbd->exd[i] = 0;
+ break;
+ case HIL_CMD_RNM:
+ for (i = 0; i < idx; i++)
+ kbd->rnm[i] = kbd->data[i] & HIL_PKT_DATA_MASK;
+ for (; i < HIL_KBD_MAX_LENGTH + 1; i++)
+ kbd->rnm[i] = '\0';
+ break;
+ default:
+ /* These occur when device isn't present */
+ if (p == (HIL_ERR_INT | HIL_PKT_CMD)) break;
+ /* Anything else we'd like to know about. */
+ printk(KERN_WARNING PREFIX "Device sent unknown record %x\n", p);
+ break;
+ }
+ goto out;
+
+ report:
+ cnt = 1;
+ switch (kbd->data[0] & HIL_POL_CHARTYPE_MASK) {
+ case HIL_POL_CHARTYPE_NONE:
+ break;
+ case HIL_POL_CHARTYPE_ASCII:
+ while (cnt < idx - 1)
+ input_report_key(dev, kbd->data[cnt++] & 0x7f, 1);
+ break;
+ case HIL_POL_CHARTYPE_RSVD1:
+ case HIL_POL_CHARTYPE_RSVD2:
+ case HIL_POL_CHARTYPE_BINARY:
+ while (cnt < idx - 1)
+ input_report_key(dev, kbd->data[cnt++], 1);
+ break;
+ case HIL_POL_CHARTYPE_SET1:
+ while (cnt < idx - 1) {
+ unsigned int key;
+ int up;
+ key = kbd->data[cnt++];
+ up = key & HIL_KBD_SET1_UPBIT;
+ key &= (~HIL_KBD_SET1_UPBIT & 0xff);
+ key = key >> HIL_KBD_SET1_SHIFT;
+ if (key != KEY_RESERVED && key != KEY_UNKNOWN)
+ input_report_key(dev, hil_kbd_set1[key], !up);
+ }
+ break;
+ case HIL_POL_CHARTYPE_SET2:
+ while (cnt < idx - 1) {
+ unsigned int key;
+ int up;
+ key = kbd->data[cnt++];
+ up = key & HIL_KBD_SET2_UPBIT;
+ key &= (~HIL_KBD_SET1_UPBIT & 0xff);
+ key = key >> HIL_KBD_SET2_SHIFT;
+ if (key != KEY_RESERVED && key != KEY_UNKNOWN)
+ input_report_key(dev, key, !up);
+ }
+ break;
+ case HIL_POL_CHARTYPE_SET3:
+ while (cnt < idx - 1) {
+ unsigned int key;
+ int up;
+ key = kbd->data[cnt++];
+ up = key & HIL_KBD_SET3_UPBIT;
+ key &= (~HIL_KBD_SET1_UPBIT & 0xff);
+ key = key >> HIL_KBD_SET3_SHIFT;
+ if (key != KEY_RESERVED && key != KEY_UNKNOWN)
+ input_report_key(dev, hil_kbd_set3[key], !up);
+ }
+ break;
+ }
+ out:
+ kbd->idx4 = 0;
+ up(&kbd->sem);
+}
+
+static void hil_kbd_process_err(struct hil_kbd *kbd) {
+ printk(KERN_WARNING PREFIX "errored HIL packet\n");
+ kbd->idx4 = 0;
+ up(&kbd->sem);
+ return;
+}
+
+static void hil_kbd_interrupt(struct serio *serio,
+ unsigned char data,
+ unsigned int flags)
+{
+ struct hil_kbd *kbd;
+ hil_packet packet;
+ int idx;
+
+ kbd = (struct hil_kbd *)serio->private;
+ if (kbd == NULL) {
+ BUG();
+ return;
+ }
+
+ if (kbd->idx4 >= (HIL_KBD_MAX_LENGTH * sizeof(hil_packet))) {
+ hil_kbd_process_err(kbd);
+ return;
+ }
+ idx = kbd->idx4/4;
+ if (!(kbd->idx4 % 4)) kbd->data[idx] = 0;
+ packet = kbd->data[idx];
+ packet |= ((hil_packet)data) << ((3 - (kbd->idx4 % 4)) * 8);
+ kbd->data[idx] = packet;
+
+ /* Records of N 4-byte hil_packets must terminate with a command. */
+ if ((++(kbd->idx4)) % 4) return;
+ if ((packet & 0xffff0000) != HIL_ERR_INT) {
+ hil_kbd_process_err(kbd);
+ return;
+ }
+ if (packet & HIL_PKT_CMD) hil_kbd_process_record(kbd);
+}
+
+static void hil_kbd_disconnect(struct serio *serio)
+{
+ struct hil_kbd *kbd;
+
+ kbd = (struct hil_kbd *)serio->private;
+ if (kbd == NULL) {
+ BUG();
+ return;
+ }
+
+ input_unregister_device(&kbd->dev);
+ serio_close(serio);
+ kfree(kbd);
+}
+
+static void hil_kbd_connect(struct serio *serio, struct serio_dev *dev)
+{
+ struct hil_kbd *kbd;
+ uint8_t did, *idd;
+ int i;
+
+ if (serio->type != (SERIO_HIL_MLC | SERIO_HIL)) return;
+
+ if (!(kbd = kmalloc(sizeof(struct hil_kbd), GFP_KERNEL))) return;
+ memset(kbd, 0, sizeof(struct hil_kbd));
+
+ if (serio_open(serio, dev)) goto bail0;
+
+ serio->private = kbd;
+ kbd->serio = serio;
+ kbd->dev.private = kbd;
+
+ init_MUTEX_LOCKED(&(kbd->sem));
+
+ /* Get device info. MLC driver supplies devid/status/etc. */
+ serio->write(serio, 0);
+ serio->write(serio, 0);
+ serio->write(serio, HIL_PKT_CMD >> 8);
+ serio->write(serio, HIL_CMD_IDD);
+ down(&(kbd->sem));
+
+ serio->write(serio, 0);
+ serio->write(serio, 0);
+ serio->write(serio, HIL_PKT_CMD >> 8);
+ serio->write(serio, HIL_CMD_RSC);
+ down(&(kbd->sem));
+
+ serio->write(serio, 0);
+ serio->write(serio, 0);
+ serio->write(serio, HIL_PKT_CMD >> 8);
+ serio->write(serio, HIL_CMD_RNM);
+ down(&(kbd->sem));
+
+ serio->write(serio, 0);
+ serio->write(serio, 0);
+ serio->write(serio, HIL_PKT_CMD >> 8);
+ serio->write(serio, HIL_CMD_EXD);
+ down(&(kbd->sem));
+
+ up(&(kbd->sem));
+
+ did = kbd->idd[0];
+ idd = kbd->idd + 1;
+ switch (did & HIL_IDD_DID_TYPE_MASK) {
+ case HIL_IDD_DID_TYPE_KB_INTEGRAL:
+ case HIL_IDD_DID_TYPE_KB_ITF:
+ case HIL_IDD_DID_TYPE_KB_RSVD:
+ case HIL_IDD_DID_TYPE_CHAR:
+ printk(KERN_INFO PREFIX "HIL keyboard found (did = 0x%02x, lang = %s)\n",
+ did, hil_language[did & HIL_IDD_DID_TYPE_KB_LANG_MASK]);
+ break;
+ default:
+ goto bail1;
+ }
+
+ if(HIL_IDD_NUM_BUTTONS(idd) || HIL_IDD_NUM_AXES_PER_SET(*idd)) {
+ printk(KERN_INFO PREFIX "keyboards only, no combo devices supported.\n");
+ goto bail1;
+ }
+
+ kbd->dev.name = strlen(kbd->rnm) ? kbd->rnm : HIL_GENERIC_NAME;
+
+ kbd->dev.idbus = BUS_HIL;
+ kbd->dev.idvendor = SERIO_HIL;
+ kbd->dev.idproduct = 0x0001; /* TODO: get from kbd->rsc */
+ kbd->dev.idversion = 0x0100; /* TODO: get from kbd->rsc */
+
+ kbd->dev.evbit[0] |= BIT(EV_KEY);
+
+ for (i = 0; i < 128; i++) {
+ set_bit(hil_kbd_set1[i], kbd->dev.keybit);
+ set_bit(hil_kbd_set3[i], kbd->dev.keybit);
+ }
+ clear_bit(0, kbd->dev.keybit);
+
+#if 1
+ /* XXX: HACK !!!
+ * remove this call if hp_psaux.c/hp_keyb.c is converted
+ * to the input layer... */
+ register_ps2_keybfuncs();
+#endif
+
+ input_register_device(&kbd->dev);
+ printk(KERN_INFO "input%d: %s on hil%d\n",
+ kbd->dev.number, "HIL keyboard", 0);
+
+ /* HIL keyboards don't have a numlock key,
+ * simulate a up-down sequence of numlock to
+ * make the keypad work at expected. */
+ input_report_key(&kbd->dev, KEY_NUMLOCK, 1);
+/* input_report_key(&kbd->dev, KEY_NUMLOCK, 0); */
+
+ serio->write(serio, 0);
+ serio->write(serio, 0);
+ serio->write(serio, HIL_PKT_CMD >> 8);
+ serio->write(serio, HIL_CMD_EK1); /* Enable Keyswitch Autorepeat 1 */
+ down(&(kbd->sem));
+ up(&(kbd->sem));
+
+ return;
+ bail1:
+ serio_close(serio);
+ bail0:
+ kfree(kbd);
+ return;
+}
+
+
+struct serio_dev hil_kbd_serio_dev = {
+ connect: hil_kbd_connect,
+ disconnect: hil_kbd_disconnect,
+ interrupt: hil_kbd_interrupt
+};
+
+static int __init hil_kbd_init(void)
+{
+ serio_register_device(&hil_kbd_serio_dev);
+ return 0;
+}
+
+static void __exit hil_kbd_exit(void)
+{
+ serio_unregister_device(&hil_kbd_serio_dev);
+
+#if 1
+ /* XXX: HACK !!!
+ * remove this call if hp_psaux.c/hp_keyb.c is converted
+ * to the input layer... */
+ unregister_kbd_ops();
+#endif
+}
+
+module_init(hil_kbd_init);
+module_exit(hil_kbd_exit);
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