| /* |
| * Copyright (c) 2000-2001 Vojtech Pavlik |
| * |
| * Based on the work of: |
| * Hamish Macdonald |
| */ |
| |
| /* |
| * Amiga keyboard driver for Linux/m68k |
| */ |
| |
| /* |
| * 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 |
| * |
| * Should you need to contact me, the author, you can do so either by |
| * e-mail - mail your message to <vojtech@ucw.cz>, or by paper mail: |
| * Vojtech Pavlik, Simunkova 1594, Prague 8, 182 00 Czech Republic |
| */ |
| |
| #include <linux/module.h> |
| #include <linux/init.h> |
| #include <linux/input.h> |
| #include <linux/delay.h> |
| #include <linux/interrupt.h> |
| #include <linux/keyboard.h> |
| #include <linux/platform_device.h> |
| |
| #include <asm/amigaints.h> |
| #include <asm/amigahw.h> |
| #include <asm/irq.h> |
| |
| MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>"); |
| MODULE_DESCRIPTION("Amiga keyboard driver"); |
| MODULE_LICENSE("GPL"); |
| |
| static unsigned char amikbd_keycode[0x78] __initdata = { |
| [0] = KEY_GRAVE, |
| [1] = KEY_1, |
| [2] = KEY_2, |
| [3] = KEY_3, |
| [4] = KEY_4, |
| [5] = KEY_5, |
| [6] = KEY_6, |
| [7] = KEY_7, |
| [8] = KEY_8, |
| [9] = KEY_9, |
| [10] = KEY_0, |
| [11] = KEY_MINUS, |
| [12] = KEY_EQUAL, |
| [13] = KEY_BACKSLASH, |
| [15] = KEY_KP0, |
| [16] = KEY_Q, |
| [17] = KEY_W, |
| [18] = KEY_E, |
| [19] = KEY_R, |
| [20] = KEY_T, |
| [21] = KEY_Y, |
| [22] = KEY_U, |
| [23] = KEY_I, |
| [24] = KEY_O, |
| [25] = KEY_P, |
| [26] = KEY_LEFTBRACE, |
| [27] = KEY_RIGHTBRACE, |
| [29] = KEY_KP1, |
| [30] = KEY_KP2, |
| [31] = KEY_KP3, |
| [32] = KEY_A, |
| [33] = KEY_S, |
| [34] = KEY_D, |
| [35] = KEY_F, |
| [36] = KEY_G, |
| [37] = KEY_H, |
| [38] = KEY_J, |
| [39] = KEY_K, |
| [40] = KEY_L, |
| [41] = KEY_SEMICOLON, |
| [42] = KEY_APOSTROPHE, |
| [43] = KEY_BACKSLASH, |
| [45] = KEY_KP4, |
| [46] = KEY_KP5, |
| [47] = KEY_KP6, |
| [48] = KEY_102ND, |
| [49] = KEY_Z, |
| [50] = KEY_X, |
| [51] = KEY_C, |
| [52] = KEY_V, |
| [53] = KEY_B, |
| [54] = KEY_N, |
| [55] = KEY_M, |
| [56] = KEY_COMMA, |
| [57] = KEY_DOT, |
| [58] = KEY_SLASH, |
| [60] = KEY_KPDOT, |
| [61] = KEY_KP7, |
| [62] = KEY_KP8, |
| [63] = KEY_KP9, |
| [64] = KEY_SPACE, |
| [65] = KEY_BACKSPACE, |
| [66] = KEY_TAB, |
| [67] = KEY_KPENTER, |
| [68] = KEY_ENTER, |
| [69] = KEY_ESC, |
| [70] = KEY_DELETE, |
| [74] = KEY_KPMINUS, |
| [76] = KEY_UP, |
| [77] = KEY_DOWN, |
| [78] = KEY_RIGHT, |
| [79] = KEY_LEFT, |
| [80] = KEY_F1, |
| [81] = KEY_F2, |
| [82] = KEY_F3, |
| [83] = KEY_F4, |
| [84] = KEY_F5, |
| [85] = KEY_F6, |
| [86] = KEY_F7, |
| [87] = KEY_F8, |
| [88] = KEY_F9, |
| [89] = KEY_F10, |
| [90] = KEY_KPLEFTPAREN, |
| [91] = KEY_KPRIGHTPAREN, |
| [92] = KEY_KPSLASH, |
| [93] = KEY_KPASTERISK, |
| [94] = KEY_KPPLUS, |
| [95] = KEY_HELP, |
| [96] = KEY_LEFTSHIFT, |
| [97] = KEY_RIGHTSHIFT, |
| [98] = KEY_CAPSLOCK, |
| [99] = KEY_LEFTCTRL, |
| [100] = KEY_LEFTALT, |
| [101] = KEY_RIGHTALT, |
| [102] = KEY_LEFTMETA, |
| [103] = KEY_RIGHTMETA |
| }; |
| |
| static const char *amikbd_messages[8] = { |
| [0] = KERN_ALERT "amikbd: Ctrl-Amiga-Amiga reset warning!!\n", |
| [1] = KERN_WARNING "amikbd: keyboard lost sync\n", |
| [2] = KERN_WARNING "amikbd: keyboard buffer overflow\n", |
| [3] = KERN_WARNING "amikbd: keyboard controller failure\n", |
| [4] = KERN_ERR "amikbd: keyboard selftest failure\n", |
| [5] = KERN_INFO "amikbd: initiate power-up key stream\n", |
| [6] = KERN_INFO "amikbd: terminate power-up key stream\n", |
| [7] = KERN_WARNING "amikbd: keyboard interrupt\n" |
| }; |
| |
| static irqreturn_t amikbd_interrupt(int irq, void *data) |
| { |
| struct input_dev *dev = data; |
| unsigned char scancode, down; |
| |
| scancode = ~ciaa.sdr; /* get and invert scancode (keyboard is active low) */ |
| ciaa.cra |= 0x40; /* switch SP pin to output for handshake */ |
| udelay(85); /* wait until 85 us have expired */ |
| ciaa.cra &= ~0x40; /* switch CIA serial port to input mode */ |
| |
| down = !(scancode & 1); /* lowest bit is release bit */ |
| scancode >>= 1; |
| |
| if (scancode < 0x78) { /* scancodes < 0x78 are keys */ |
| if (scancode == 98) { /* CapsLock is a toggle switch key on Amiga */ |
| input_report_key(dev, scancode, 1); |
| input_report_key(dev, scancode, 0); |
| } else { |
| input_report_key(dev, scancode, down); |
| } |
| |
| input_sync(dev); |
| } else /* scancodes >= 0x78 are error codes */ |
| printk(amikbd_messages[scancode - 0x78]); |
| |
| return IRQ_HANDLED; |
| } |
| |
| static int __init amikbd_probe(struct platform_device *pdev) |
| { |
| struct input_dev *dev; |
| int i, j, err; |
| |
| dev = input_allocate_device(); |
| if (!dev) { |
| dev_err(&pdev->dev, "Not enough memory for input device\n"); |
| return -ENOMEM; |
| } |
| |
| dev->name = pdev->name; |
| dev->phys = "amikbd/input0"; |
| dev->id.bustype = BUS_AMIGA; |
| dev->id.vendor = 0x0001; |
| dev->id.product = 0x0001; |
| dev->id.version = 0x0100; |
| dev->dev.parent = &pdev->dev; |
| |
| dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_REP); |
| |
| for (i = 0; i < 0x78; i++) |
| set_bit(i, dev->keybit); |
| |
| for (i = 0; i < MAX_NR_KEYMAPS; i++) { |
| static u_short temp_map[NR_KEYS] __initdata; |
| if (!key_maps[i]) |
| continue; |
| memset(temp_map, 0, sizeof(temp_map)); |
| for (j = 0; j < 0x78; j++) { |
| if (!amikbd_keycode[j]) |
| continue; |
| temp_map[j] = key_maps[i][amikbd_keycode[j]]; |
| } |
| for (j = 0; j < NR_KEYS; j++) { |
| if (!temp_map[j]) |
| temp_map[j] = 0xf200; |
| } |
| memcpy(key_maps[i], temp_map, sizeof(temp_map)); |
| } |
| ciaa.cra &= ~0x41; /* serial data in, turn off TA */ |
| err = request_irq(IRQ_AMIGA_CIAA_SP, amikbd_interrupt, 0, "amikbd", |
| dev); |
| if (err) |
| goto fail2; |
| |
| err = input_register_device(dev); |
| if (err) |
| goto fail3; |
| |
| platform_set_drvdata(pdev, dev); |
| |
| return 0; |
| |
| fail3: free_irq(IRQ_AMIGA_CIAA_SP, dev); |
| fail2: input_free_device(dev); |
| return err; |
| } |
| |
| static int __exit amikbd_remove(struct platform_device *pdev) |
| { |
| struct input_dev *dev = platform_get_drvdata(pdev); |
| |
| platform_set_drvdata(pdev, NULL); |
| free_irq(IRQ_AMIGA_CIAA_SP, dev); |
| input_unregister_device(dev); |
| return 0; |
| } |
| |
| static struct platform_driver amikbd_driver = { |
| .remove = __exit_p(amikbd_remove), |
| .driver = { |
| .name = "amiga-keyboard", |
| .owner = THIS_MODULE, |
| }, |
| }; |
| module_platform_driver(amikbd_driver); |
| |
| MODULE_ALIAS("platform:amiga-keyboard"); |
