179909ecaf
I do not think Vojtech wants snail mail these days (and he mentioned that nobody has ever sent him snail mail), and the address is not even valid anymore, so let's remove snail-mail instructions from the sources. Acked-by: Vojtech Pavlik <vojtech@suse.cz> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
273 lines
6.4 KiB
C
273 lines
6.4 KiB
C
/*
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* Copyright (c) 2000-2001 Vojtech Pavlik
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*
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* Based on the work of:
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* Hamish Macdonald
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*/
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/*
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* Amiga keyboard driver for Linux/m68k
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*/
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/*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#include <linux/module.h>
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#include <linux/init.h>
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#include <linux/input.h>
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#include <linux/delay.h>
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#include <linux/interrupt.h>
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#include <linux/keyboard.h>
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#include <linux/platform_device.h>
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#include <asm/amigaints.h>
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#include <asm/amigahw.h>
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#include <asm/irq.h>
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MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>");
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MODULE_DESCRIPTION("Amiga keyboard driver");
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MODULE_LICENSE("GPL");
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#ifdef CONFIG_HW_CONSOLE
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static unsigned char amikbd_keycode[0x78] __initdata = {
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[0] = KEY_GRAVE,
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[1] = KEY_1,
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[2] = KEY_2,
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[3] = KEY_3,
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[4] = KEY_4,
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[5] = KEY_5,
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[6] = KEY_6,
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[7] = KEY_7,
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[8] = KEY_8,
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[9] = KEY_9,
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[10] = KEY_0,
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[11] = KEY_MINUS,
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[12] = KEY_EQUAL,
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[13] = KEY_BACKSLASH,
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[15] = KEY_KP0,
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[16] = KEY_Q,
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[17] = KEY_W,
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[18] = KEY_E,
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[19] = KEY_R,
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[20] = KEY_T,
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[21] = KEY_Y,
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[22] = KEY_U,
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[23] = KEY_I,
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[24] = KEY_O,
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[25] = KEY_P,
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[26] = KEY_LEFTBRACE,
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[27] = KEY_RIGHTBRACE,
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[29] = KEY_KP1,
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[30] = KEY_KP2,
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[31] = KEY_KP3,
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[32] = KEY_A,
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[33] = KEY_S,
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[34] = KEY_D,
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[35] = KEY_F,
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[36] = KEY_G,
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[37] = KEY_H,
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[38] = KEY_J,
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[39] = KEY_K,
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[40] = KEY_L,
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[41] = KEY_SEMICOLON,
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[42] = KEY_APOSTROPHE,
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[43] = KEY_BACKSLASH,
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[45] = KEY_KP4,
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[46] = KEY_KP5,
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[47] = KEY_KP6,
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[48] = KEY_102ND,
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[49] = KEY_Z,
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[50] = KEY_X,
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[51] = KEY_C,
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[52] = KEY_V,
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[53] = KEY_B,
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[54] = KEY_N,
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[55] = KEY_M,
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[56] = KEY_COMMA,
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[57] = KEY_DOT,
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[58] = KEY_SLASH,
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[60] = KEY_KPDOT,
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[61] = KEY_KP7,
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[62] = KEY_KP8,
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[63] = KEY_KP9,
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[64] = KEY_SPACE,
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[65] = KEY_BACKSPACE,
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[66] = KEY_TAB,
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[67] = KEY_KPENTER,
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[68] = KEY_ENTER,
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[69] = KEY_ESC,
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[70] = KEY_DELETE,
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[74] = KEY_KPMINUS,
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[76] = KEY_UP,
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[77] = KEY_DOWN,
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[78] = KEY_RIGHT,
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[79] = KEY_LEFT,
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[80] = KEY_F1,
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[81] = KEY_F2,
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[82] = KEY_F3,
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[83] = KEY_F4,
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[84] = KEY_F5,
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[85] = KEY_F6,
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[86] = KEY_F7,
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[87] = KEY_F8,
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[88] = KEY_F9,
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[89] = KEY_F10,
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[90] = KEY_KPLEFTPAREN,
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[91] = KEY_KPRIGHTPAREN,
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[92] = KEY_KPSLASH,
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[93] = KEY_KPASTERISK,
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[94] = KEY_KPPLUS,
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[95] = KEY_HELP,
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[96] = KEY_LEFTSHIFT,
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[97] = KEY_RIGHTSHIFT,
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[98] = KEY_CAPSLOCK,
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[99] = KEY_LEFTCTRL,
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[100] = KEY_LEFTALT,
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[101] = KEY_RIGHTALT,
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[102] = KEY_LEFTMETA,
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[103] = KEY_RIGHTMETA
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};
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static void __init amikbd_init_console_keymaps(void)
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{
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/* We can spare 512 bytes on stack for temp_map in init path. */
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unsigned short temp_map[NR_KEYS];
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int i, j;
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for (i = 0; i < MAX_NR_KEYMAPS; i++) {
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if (!key_maps[i])
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continue;
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memset(temp_map, 0, sizeof(temp_map));
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for (j = 0; j < 0x78; j++) {
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if (!amikbd_keycode[j])
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continue;
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temp_map[j] = key_maps[i][amikbd_keycode[j]];
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}
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for (j = 0; j < NR_KEYS; j++) {
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if (!temp_map[j])
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temp_map[j] = 0xf200;
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}
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memcpy(key_maps[i], temp_map, sizeof(temp_map));
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}
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}
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#else /* !CONFIG_HW_CONSOLE */
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static inline void amikbd_init_console_keymaps(void) {}
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#endif /* !CONFIG_HW_CONSOLE */
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static const char *amikbd_messages[8] = {
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[0] = KERN_ALERT "amikbd: Ctrl-Amiga-Amiga reset warning!!\n",
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[1] = KERN_WARNING "amikbd: keyboard lost sync\n",
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[2] = KERN_WARNING "amikbd: keyboard buffer overflow\n",
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[3] = KERN_WARNING "amikbd: keyboard controller failure\n",
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[4] = KERN_ERR "amikbd: keyboard selftest failure\n",
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[5] = KERN_INFO "amikbd: initiate power-up key stream\n",
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[6] = KERN_INFO "amikbd: terminate power-up key stream\n",
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[7] = KERN_WARNING "amikbd: keyboard interrupt\n"
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};
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static irqreturn_t amikbd_interrupt(int irq, void *data)
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{
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struct input_dev *dev = data;
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unsigned char scancode, down;
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scancode = ~ciaa.sdr; /* get and invert scancode (keyboard is active low) */
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ciaa.cra |= 0x40; /* switch SP pin to output for handshake */
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udelay(85); /* wait until 85 us have expired */
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ciaa.cra &= ~0x40; /* switch CIA serial port to input mode */
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down = !(scancode & 1); /* lowest bit is release bit */
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scancode >>= 1;
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if (scancode < 0x78) { /* scancodes < 0x78 are keys */
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if (scancode == 98) { /* CapsLock is a toggle switch key on Amiga */
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input_report_key(dev, scancode, 1);
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input_report_key(dev, scancode, 0);
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} else {
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input_report_key(dev, scancode, down);
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}
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input_sync(dev);
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} else /* scancodes >= 0x78 are error codes */
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printk(amikbd_messages[scancode - 0x78]);
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return IRQ_HANDLED;
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}
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static int __init amikbd_probe(struct platform_device *pdev)
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{
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struct input_dev *dev;
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int i, err;
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dev = input_allocate_device();
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if (!dev) {
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dev_err(&pdev->dev, "Not enough memory for input device\n");
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return -ENOMEM;
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}
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dev->name = pdev->name;
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dev->phys = "amikbd/input0";
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dev->id.bustype = BUS_AMIGA;
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dev->id.vendor = 0x0001;
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dev->id.product = 0x0001;
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dev->id.version = 0x0100;
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dev->dev.parent = &pdev->dev;
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dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_REP);
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for (i = 0; i < 0x78; i++)
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set_bit(i, dev->keybit);
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amikbd_init_console_keymaps();
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ciaa.cra &= ~0x41; /* serial data in, turn off TA */
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err = request_irq(IRQ_AMIGA_CIAA_SP, amikbd_interrupt, 0, "amikbd",
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dev);
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if (err)
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goto fail2;
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err = input_register_device(dev);
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if (err)
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goto fail3;
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platform_set_drvdata(pdev, dev);
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return 0;
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fail3: free_irq(IRQ_AMIGA_CIAA_SP, dev);
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fail2: input_free_device(dev);
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return err;
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}
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static int __exit amikbd_remove(struct platform_device *pdev)
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{
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struct input_dev *dev = platform_get_drvdata(pdev);
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free_irq(IRQ_AMIGA_CIAA_SP, dev);
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input_unregister_device(dev);
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return 0;
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}
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static struct platform_driver amikbd_driver = {
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.remove = __exit_p(amikbd_remove),
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.driver = {
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.name = "amiga-keyboard",
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},
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};
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module_platform_driver_probe(amikbd_driver, amikbd_probe);
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MODULE_ALIAS("platform:amiga-keyboard");
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