* License. See the file "COPYING" in the main directory of this archive
* for more details.
*
+ * Copyright (C) 1999-2002 Harald Koerfgen <hkoerfg@web.de>
+ * Copyright (C) 2001, 2002, 2003, 2004 Maciej W. Rozycki
*/
+
+#include <linux/config.h>
+
#include <linux/errno.h>
+#include <linux/sched.h>
#include <linux/tty.h>
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/delay.h>
#include <linux/kbd_ll.h>
-#include <asm/wbflush.h>
+#include <linux/kbd_kern.h>
+#include <linux/vt_kern.h>
+
+#include <asm/keyboard.h>
#include <asm/dec/tc.h>
#include <asm/dec/machtype.h>
+#include <asm/dec/serial.h>
-#include "zs.h"
#include "lk201.h"
+/*
+ * Only handle DECstations that have an LK201 interface.
+ * Maxine uses LK501 at the Access.Bus and various DECsystems
+ * have no keyboard interface at all.
+ */
+#define LK_IFACE (mips_machtype == MACH_DS23100 || \
+ mips_machtype == MACH_DS5000_200 || \
+ mips_machtype == MACH_DS5000_1XX || \
+ mips_machtype == MACH_DS5000_2X0)
+/*
+ * These use the Z8530 SCC. Others use the DZ11.
+ */
+#define LK_IFACE_ZS (mips_machtype == MACH_DS5000_1XX || \
+ mips_machtype == MACH_DS5000_2X0)
+
/* Simple translation table for the SysRq keys */
#ifdef CONFIG_MAGIC_SYSRQ
*/
unsigned char lk201_sysrq_xlate[128];
unsigned char *kbd_sysrq_xlate = lk201_sysrq_xlate;
+
+unsigned char kbd_sysrq_key = -1;
#endif
#define KEYB_LINE 3
-static int __init lk201_init(struct dec_serial *);
-static void __init lk201_info(struct dec_serial *);
-static void lk201_kbd_rx_char(unsigned char, unsigned char);
+static int __init lk201_init(void *);
+static void __init lk201_info(void *);
+static void lk201_rx_char(unsigned char, unsigned char);
-struct zs_hook lk201_kbdhook = {
- .init_channel = lk201_init,
- .init_info = lk201_info,
- .cflags = B4800 | CS8 | CSTOPB | CLOCAL
+static struct dec_serial_hook lk201_hook = {
+ .init_channel = lk201_init,
+ .init_info = lk201_info,
+ .rx_char = NULL,
+ .poll_rx_char = NULL,
+ .poll_tx_char = NULL,
+ .cflags = B4800 | CS8 | CSTOPB | CLOCAL,
};
/*
* This is used during keyboard initialisation
*/
static unsigned char lk201_reset_string[] = {
- LK_CMD_LEDS_ON, LK_PARAM_LED_MASK(0xf), /* show we are resetting */
LK_CMD_SET_DEFAULTS,
LK_CMD_MODE(LK_MODE_RPT_DOWN, 1),
LK_CMD_MODE(LK_MODE_RPT_DOWN, 2),
LK_CMD_MODE(LK_MODE_RPT_DOWN, 12),
LK_CMD_MODE(LK_MODE_DOWN, 13),
LK_CMD_MODE(LK_MODE_RPT_DOWN, 14),
- LK_CMD_ENB_RPT,
LK_CMD_DIS_KEYCLK,
- LK_CMD_RESUME,
LK_CMD_ENB_BELL, LK_PARAM_VOLUME(4),
- LK_CMD_LEDS_OFF, LK_PARAM_LED_MASK(0xf)
};
-static int __init lk201_reset(struct dec_serial *info)
+static void *lk201_handle;
+
+static int lk201_send(unsigned char ch)
+{
+ if (lk201_hook.poll_tx_char(lk201_handle, ch)) {
+ printk(KERN_ERR "lk201: transmit timeout\n");
+ return -EIO;
+ }
+ return 0;
+}
+
+static inline int lk201_get_id(void)
+{
+ return lk201_send(LK_CMD_REQ_ID);
+}
+
+static int lk201_reset(void)
+{
+ int i, r;
+
+ for (i = 0; i < sizeof(lk201_reset_string); i++) {
+ r = lk201_send(lk201_reset_string[i]);
+ if (r < 0)
+ return r;
+ }
+ return 0;
+}
+
+static void lk201_report(unsigned char id[6])
+{
+ char *report = "lk201: keyboard attached, ";
+
+ switch (id[2]) {
+ case LK_STAT_PWRUP_OK:
+ printk(KERN_INFO "%sself-test OK\n", report);
+ break;
+ case LK_STAT_PWRUP_KDOWN:
+ /* The keyboard will resend the power-up ID
+ after all keys are released, so we don't
+ bother handling the error specially. Still
+ there may be a short-circuit inside.
+ */
+ printk(KERN_ERR "%skey down (stuck?), code: 0x%02x\n",
+ report, id[3]);
+ break;
+ case LK_STAT_PWRUP_ERROR:
+ printk(KERN_ERR "%sself-test failure\n", report);
+ break;
+ default:
+ printk(KERN_ERR "%sunknown error: 0x%02x\n",
+ report, id[2]);
+ }
+}
+
+static void lk201_id(unsigned char id[6])
+{
+ /*
+ * Report whether there is an LK201 or an LK401
+ * The LK401 has ALT keys...
+ */
+ switch (id[4]) {
+ case 1:
+ printk(KERN_INFO "lk201: LK201 detected\n");
+ break;
+ case 2:
+ printk(KERN_INFO "lk201: LK401 detected\n");
+ break;
+ case 3:
+ printk(KERN_INFO "lk201: LK443 detected\n");
+ break;
+ case 4:
+ printk(KERN_INFO "lk201: LK421 detected\n");
+ break;
+ default:
+ printk(KERN_WARNING
+ "lk201: unknown keyboard detected, ID %d\n", id[4]);
+ printk(KERN_WARNING "lk201: ... please report to "
+ "<linux-mips@linux-mips.org>\n");
+ }
+}
+
+#define DEFAULT_KEYB_REP_DELAY (250/5) /* [5ms] */
+#define DEFAULT_KEYB_REP_RATE 30 /* [cps] */
+
+static struct kbd_repeat kbdrate = {
+ DEFAULT_KEYB_REP_DELAY,
+ DEFAULT_KEYB_REP_RATE
+};
+
+static void parse_kbd_rate(struct kbd_repeat *r)
{
+ if (r->delay <= 0)
+ r->delay = kbdrate.delay;
+ if (r->rate <= 0)
+ r->rate = kbdrate.rate;
+
+ if (r->delay < 5)
+ r->delay = 5;
+ if (r->delay > 630)
+ r->delay = 630;
+ if (r->rate < 12)
+ r->rate = 12;
+ if (r->rate > 127)
+ r->rate = 127;
+ if (r->rate == 125)
+ r->rate = 124;
+}
+
+static int write_kbd_rate(struct kbd_repeat *rep)
+{
+ int delay, rate;
int i;
- for (i = 0; i < sizeof(lk201_reset_string); i++)
- if (info->hook->poll_tx_char(info, lk201_reset_string[i])) {
- printk("%s transmit timeout\n", __FUNCTION__);
- return -EIO;
- }
+ delay = rep->delay / 5;
+ rate = rep->rate;
+ for (i = 0; i < 4; i++) {
+ if (lk201_hook.poll_tx_char(lk201_handle,
+ LK_CMD_RPT_RATE(i)))
+ return 1;
+ if (lk201_hook.poll_tx_char(lk201_handle,
+ LK_PARAM_DELAY(delay)))
+ return 1;
+ if (lk201_hook.poll_tx_char(lk201_handle,
+ LK_PARAM_RATE(rate)))
+ return 1;
+ }
+ return 0;
+}
+
+static int lk201_kbd_rate(struct kbd_repeat *rep)
+{
+ if (rep == NULL)
+ return -EINVAL;
+
+ parse_kbd_rate(rep);
+
+ if (write_kbd_rate(rep)) {
+ memcpy(rep, &kbdrate, sizeof(struct kbd_repeat));
+ return -EIO;
+ }
+
+ memcpy(&kbdrate, rep, sizeof(struct kbd_repeat));
+
return 0;
}
+static void lk201_kd_mksound(unsigned int hz, unsigned int ticks)
+{
+ if (!ticks)
+ return;
+
+ /*
+ * Can't set frequency and we "approximate"
+ * duration by volume. ;-)
+ */
+ ticks /= HZ / 32;
+ if (ticks > 7)
+ ticks = 7;
+ ticks = 7 - ticks;
+
+ if (lk201_hook.poll_tx_char(lk201_handle, LK_CMD_ENB_BELL))
+ return;
+ if (lk201_hook.poll_tx_char(lk201_handle, LK_PARAM_VOLUME(ticks)))
+ return;
+ if (lk201_hook.poll_tx_char(lk201_handle, LK_CMD_BELL))
+ return;
+}
+
void kbd_leds(unsigned char leds)
{
- return;
+ unsigned char l = 0;
+
+ if (!lk201_handle) /* FIXME */
+ return;
+
+ /* FIXME -- Only Hold and Lock LEDs for now. --macro */
+ if (leds & LED_SCR)
+ l |= LK_LED_HOLD;
+ if (leds & LED_CAP)
+ l |= LK_LED_LOCK;
+
+ if (lk201_hook.poll_tx_char(lk201_handle, LK_CMD_LEDS_ON))
+ return;
+ if (lk201_hook.poll_tx_char(lk201_handle, LK_PARAM_LED_MASK(l)))
+ return;
+ if (lk201_hook.poll_tx_char(lk201_handle, LK_CMD_LEDS_OFF))
+ return;
+ if (lk201_hook.poll_tx_char(lk201_handle, LK_PARAM_LED_MASK(~l)))
+ return;
}
int kbd_setkeycode(unsigned int scancode, unsigned int keycode)
return 0x80;
}
-static void lk201_kbd_rx_char(unsigned char ch, unsigned char stat)
+static void lk201_rx_char(unsigned char ch, unsigned char fl)
{
+ static unsigned char id[6];
+ static int id_i;
+
static int shift_state = 0;
static int prev_scancode;
unsigned char c = scancodeRemap[ch];
- if (!stat || stat == 4) {
- switch (ch) {
- case LK_KEY_ACK:
- break;
- case LK_KEY_LOCK:
- shift_state ^= LK_LOCK;
- handle_scancode(c, shift_state && LK_LOCK ? 1 : 0);
- break;
- case LK_KEY_SHIFT:
- shift_state ^= LK_SHIFT;
- handle_scancode(c, shift_state && LK_SHIFT ? 1 : 0);
- break;
- case LK_KEY_CTRL:
- shift_state ^= LK_CTRL;
- handle_scancode(c, shift_state && LK_CTRL ? 1 : 0);
- break;
- case LK_KEY_COMP:
- shift_state ^= LK_COMP;
- handle_scancode(c, shift_state && LK_COMP ? 1 : 0);
- break;
- case LK_KEY_RELEASE:
- if (shift_state & LK_SHIFT)
- handle_scancode(scancodeRemap[LK_KEY_SHIFT], 0);
- if (shift_state & LK_CTRL)
- handle_scancode(scancodeRemap[LK_KEY_CTRL], 0);
- if (shift_state & LK_COMP)
- handle_scancode(scancodeRemap[LK_KEY_COMP], 0);
- if (shift_state & LK_LOCK)
- handle_scancode(scancodeRemap[LK_KEY_LOCK], 0);
- shift_state = 0;
- break;
- case LK_KEY_REPEAT:
- handle_scancode(prev_scancode, 1);
- break;
- default:
- prev_scancode = c;
- handle_scancode(c, 1);
- break;
+ if (fl != TTY_NORMAL && fl != TTY_OVERRUN) {
+ printk(KERN_ERR "lk201: keyboard receive error: 0x%02x\n", fl);
+ return;
+ }
+
+ /* Assume this is a power-up ID. */
+ if (ch == LK_STAT_PWRUP_ID && !id_i) {
+ id[id_i++] = ch;
+ return;
+ }
+
+ /* Handle the power-up sequence. */
+ if (id_i) {
+ id[id_i++] = ch;
+ if (id_i == 4) {
+ /* OK, the power-up concluded. */
+ lk201_report(id);
+ if (id[2] == LK_STAT_PWRUP_OK)
+ lk201_get_id();
+ else {
+ id_i = 0;
+ printk(KERN_ERR "lk201: keyboard power-up "
+ "error, skipping initialization\n");
+ }
+ } else if (id_i == 6) {
+ /* We got the ID; report it and start operation. */
+ id_i = 0;
+ lk201_id(id);
+ lk201_reset();
}
- } else
- printk("Error reading LKx01 keyboard: 0x%02x\n", stat);
+ return;
+ }
+
+ /* Everything else is a scancode/status response. */
+ id_i = 0;
+ switch (ch) {
+ case LK_STAT_RESUME_ERR:
+ case LK_STAT_ERROR:
+ case LK_STAT_INHIBIT_ACK:
+ case LK_STAT_TEST_ACK:
+ case LK_STAT_MODE_KEYDOWN:
+ case LK_STAT_MODE_ACK:
+ break;
+ case LK_KEY_LOCK:
+ shift_state ^= LK_LOCK;
+ handle_scancode(c, (shift_state & LK_LOCK) ? 1 : 0);
+ break;
+ case LK_KEY_SHIFT:
+ shift_state ^= LK_SHIFT;
+ handle_scancode(c, (shift_state & LK_SHIFT) ? 1 : 0);
+ break;
+ case LK_KEY_CTRL:
+ shift_state ^= LK_CTRL;
+ handle_scancode(c, (shift_state & LK_CTRL) ? 1 : 0);
+ break;
+ case LK_KEY_COMP:
+ shift_state ^= LK_COMP;
+ handle_scancode(c, (shift_state & LK_COMP) ? 1 : 0);
+ break;
+ case LK_KEY_RELEASE:
+ if (shift_state & LK_SHIFT)
+ handle_scancode(scancodeRemap[LK_KEY_SHIFT], 0);
+ if (shift_state & LK_CTRL)
+ handle_scancode(scancodeRemap[LK_KEY_CTRL], 0);
+ if (shift_state & LK_COMP)
+ handle_scancode(scancodeRemap[LK_KEY_COMP], 0);
+ if (shift_state & LK_LOCK)
+ handle_scancode(scancodeRemap[LK_KEY_LOCK], 0);
+ shift_state = 0;
+ break;
+ case LK_KEY_REPEAT:
+ handle_scancode(prev_scancode, 1);
+ break;
+ default:
+ prev_scancode = c;
+ handle_scancode(c, 1);
+ break;
+ }
+ tasklet_schedule(&keyboard_tasklet);
}
-static void __init lk201_info(struct dec_serial *info)
+static void __init lk201_info(void *handle)
{
}
-static int __init lk201_init(struct dec_serial *info)
+static int __init lk201_init(void *handle)
{
- unsigned int ch, id = 0;
- int result;
+ /* First install handlers. */
+ lk201_handle = handle;
+ kbd_rate = lk201_kbd_rate;
+ kd_mksound = lk201_kd_mksound;
- printk("DECstation LK keyboard driver v0.04... ");
+ lk201_hook.rx_char = lk201_rx_char;
- result = lk201_reset(info);
- if (result)
- return result;
- mdelay(10);
-
- /*
- * Detect whether there is an LK201 or an LK401
- * The LK401 has ALT keys...
- */
- info->hook->poll_tx_char(info, LK_CMD_REQ_ID);
- while ((ch = info->hook->poll_rx_char(info)) > 0)
- id = ch;
-
- switch (id) {
- case 1:
- printk("LK201 detected\n");
- break;
- case 2:
- printk("LK401 detected\n");
- break;
- default:
- printk("unknown keyboard, ID %d,\n", id);
- printk("... please report to <linux-mips@oss.sgi.com>\n");
- }
-
- /*
- * now we're ready
- */
- info->hook->rx_char = lk201_kbd_rx_char;
+ /* Then just issue a reset -- the handlers will do the rest. */
+ lk201_send(LK_CMD_POWER_UP);
return 0;
}
void __init kbd_init_hw(void)
{
- extern int register_zs_hook(unsigned int, struct zs_hook *);
- extern int unregister_zs_hook(unsigned int);
-
- if (TURBOCHANNEL) {
- if (mips_machtype != MACH_DS5000_XX) {
- /*
- * This is not a MAXINE, so:
- *
- * kbd_init_hw() is being called before
- * rs_init() so just register the kbd hook
- * and let zs_init do the rest :-)
- */
- if (mips_machtype == MACH_DS5000_200)
- printk("LK201 Support for DS5000/200 not yet ready ...\n");
- else
- if(!register_zs_hook(KEYB_LINE, &lk201_kbdhook))
- unregister_zs_hook(KEYB_LINE);
- }
+ /* Maxine uses LK501 at the Access.Bus. */
+ if (!LK_IFACE)
+ return;
+
+ printk(KERN_INFO "lk201: DECstation LK keyboard driver v0.05.\n");
+
+ if (LK_IFACE_ZS) {
+ /*
+ * kbd_init_hw() is being called before
+ * rs_init() so just register the kbd hook
+ * and let zs_init do the rest :-)
+ */
+ if (!register_dec_serial_hook(KEYB_LINE, &lk201_hook))
+ unregister_dec_serial_hook(KEYB_LINE);
} else {
/*
* TODO: modify dz.c to allow similar hooks
* for LK201 handling on DS2100, DS3100, and DS5000/200
*/
- printk("LK201 Support for DS3100 not yet ready ...\n");
+ printk(KERN_ERR "lk201: support for DZ11 not yet ready.\n");
}
}
-
-
-
-
git://git.onelab.eu / linux-2.6.git / blobdiff