/* * drivers/input/keyboard/jornada680_kbd.c * * HP Jornada 620/660/680/690 scan keyboard platform driver * Copyright (C) 2007 Kristoffer Ericson * * Based on hp680_keyb.c * Copyright (C) 2006 Paul Mundt * Copyright (C) 2005 Andriy Skulysh * Split from drivers/input/keyboard/hp600_keyb.c * Copyright (C) 2000 Yaegashi Takeshi (hp6xx kbd scan routine and translation table) * Copyright (C) 2000 Niibe Yutaka (HP620 Keyb translation table) * * This program is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 as * published by the Free Software Foundation. */ #include #include #include #include #include #include #include #include #include #include #include #define PCCR 0xa4000104 #define PDCR 0xa4000106 #define PECR 0xa4000108 #define PFCR 0xa400010a #define PCDR 0xa4000124 #define PDDR 0xa4000126 #define PEDR 0xa4000128 #define PFDR 0xa400012a #define PGDR 0xa400012c #define PHDR 0xa400012e #define PJDR 0xa4000130 #define PKDR 0xa4000132 #define PLDR 0xa4000134 static const unsigned short jornada_scancodes[] = { /* PTD1 */ KEY_CAPSLOCK, KEY_MACRO, KEY_LEFTCTRL, 0, KEY_ESC, KEY_KP5, 0, 0, /* 1 -> 8 */ KEY_F1, KEY_F2, KEY_F3, KEY_F8, KEY_F7, KEY_F6, KEY_F4, KEY_F5, /* 9 -> 16 */ /* PTD5 */ KEY_SLASH, KEY_APOSTROPHE, KEY_ENTER, 0, KEY_Z, 0, 0, 0, /* 17 -> 24 */ KEY_X, KEY_C, KEY_V, KEY_DOT, KEY_COMMA, KEY_M, KEY_B, KEY_N, /* 25 -> 32 */ /* PTD7 */ KEY_KP2, KEY_KP6, KEY_KP3, 0, 0, 0, 0, 0, /* 33 -> 40 */ KEY_F10, KEY_RO, KEY_F9, KEY_KP4, KEY_NUMLOCK, KEY_SCROLLLOCK, KEY_LEFTALT, KEY_HANJA, /* 41 -> 48 */ /* PTE0 */ KEY_KATAKANA, KEY_KP0, KEY_GRAVE, 0, KEY_FINANCE, 0, 0, 0, /* 49 -> 56 */ KEY_KPMINUS, KEY_HIRAGANA, KEY_SPACE, KEY_KPDOT, KEY_VOLUMEUP, 249, 0, 0, /* 57 -> 64 */ /* PTE1 */ KEY_SEMICOLON, KEY_RIGHTBRACE, KEY_BACKSLASH, 0, KEY_A, 0, 0, 0, /* 65 -> 72 */ KEY_S, KEY_D, KEY_F, KEY_L, KEY_K, KEY_J, KEY_G, KEY_H, /* 73 -> 80 */ /* PTE3 */ KEY_KP8, KEY_LEFTMETA, KEY_RIGHTSHIFT, 0, KEY_TAB, 0, 0, 0, /* 81 -> 88 */ 0, KEY_LEFTSHIFT, KEY_KP7, KEY_KP9, KEY_KP1, KEY_F11, KEY_KPPLUS, KEY_KPASTERISK, /* 89 -> 96 */ /* PTE6 */ KEY_P, KEY_LEFTBRACE, KEY_BACKSPACE, 0, KEY_Q, 0, 0, 0, /* 97 -> 104 */ KEY_W, KEY_E, KEY_R, KEY_O, KEY_I, KEY_U, KEY_T, KEY_Y, /* 105 -> 112 */ /* PTE7 */ KEY_0, KEY_MINUS, KEY_EQUAL, 0, KEY_1, 0, 0, 0, /* 113 -> 120 */ KEY_2, KEY_3, KEY_4, KEY_9, KEY_8, KEY_7, KEY_5, KEY_6, /* 121 -> 128 */ /* **** */ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }; #define JORNADA_SCAN_SIZE 18 struct jornadakbd { struct input_polled_dev *poll_dev; unsigned short keymap[ARRAY_SIZE(jornada_scancodes)]; unsigned char length; unsigned char old_scan[JORNADA_SCAN_SIZE]; unsigned char new_scan[JORNADA_SCAN_SIZE]; }; static void jornada_parse_kbd(struct jornadakbd *jornadakbd) { struct input_dev *input_dev = jornadakbd->poll_dev->input; unsigned short *keymap = jornadakbd->keymap; unsigned int sync_me = 0; unsigned int i, j; for (i = 0; i < JORNADA_SCAN_SIZE; i++) { unsigned char new = jornadakbd->new_scan[i]; unsigned char old = jornadakbd->old_scan[i]; unsigned int xor = new ^ old; if (xor == 0) continue; for (j = 0; j < 8; j++) { unsigned int bit = 1 << j; if (xor & bit) { unsigned int scancode = (i << 3) + j; input_event(input_dev, EV_MSC, MSC_SCAN, scancode); input_report_key(input_dev, keymap[scancode], !(new & bit)); sync_me = 1; } } } if (sync_me) input_sync(input_dev); } static void jornada_scan_keyb(unsigned char *s) { int i; unsigned short ec_static, dc_static; /* = UINT16_t */ unsigned char matrix_switch[] = { 0xfd, 0xff, /* PTD1 PD(1) */ 0xdf, 0xff, /* PTD5 PD(5) */ 0x7f, 0xff, /* PTD7 PD(7) */ 0xff, 0xfe, /* PTE0 PE(0) */ 0xff, 0xfd, /* PTE1 PE(1) */ 0xff, 0xf7, /* PTE3 PE(3) */ 0xff, 0xbf, /* PTE6 PE(6) */ 0xff, 0x7f, /* PTE7 PE(7) */ }, *t = matrix_switch; /* PD(x) : 1. 0xcc0c & (1~(1 << (2*(x)+1))))) 2. (0xf0cf & 0xfffff) */ /* PE(x) : 1. 0xcc0c & 0xffff 2. 0xf0cf & (1~(1 << (2*(x)+1))))) */ unsigned short matrix_PDE[] = { 0xcc04, 0xf0cf, /* PD(1) */ 0xc40c, 0xf0cf, /* PD(5) */ 0x4c0c, 0xf0cf, /* PD(7) */ 0xcc0c, 0xf0cd, /* PE(0) */ 0xcc0c, 0xf0c7, /* PE(1) */ 0xcc0c, 0xf04f, /* PE(3) */ 0xcc0c, 0xd0cf, /* PE(6) */ 0xcc0c, 0x70cf, /* PE(7) */ }, *y = matrix_PDE; /* Save these control reg bits */ dc_static = (__raw_readw(PDCR) & (~0xcc0c)); ec_static = (__raw_readw(PECR) & (~0xf0cf)); for (i = 0; i < 8; i++) { /* disable output for all but the one we want to scan */ __raw_writew((dc_static | *y++), PDCR); __raw_writew((ec_static | *y++), PECR); udelay(5); /* Get scanline row */ __raw_writeb(*t++, PDDR); __raw_writeb(*t++, PEDR); udelay(50); /* Read data */ *s++ = __raw_readb(PCDR); *s++ = __raw_readb(PFDR); } /* Scan no lines */ __raw_writeb(0xff, PDDR); __raw_writeb(0xff, PEDR); /* Enable all scanlines */ __raw_writew((dc_static | (0x5555 & 0xcc0c)),PDCR); __raw_writew((ec_static | (0x5555 & 0xf0cf)),PECR); /* Ignore extra keys and events */ *s++ = __raw_readb(PGDR); *s++ = __raw_readb(PHDR); } static void jornadakbd680_poll(struct input_polled_dev *dev) { struct jornadakbd *jornadakbd = dev->private; jornada_scan_keyb(jornadakbd->new_scan); jornada_parse_kbd(jornadakbd); memcpy(jornadakbd->old_scan, jornadakbd->new_scan, JORNADA_SCAN_SIZE); } static int __devinit jornada680kbd_probe(struct platform_device *pdev) { struct jornadakbd *jornadakbd; struct input_polled_dev *poll_dev; struct input_dev *input_dev; int i, error; jornadakbd = kzalloc(sizeof(struct jornadakbd), GFP_KERNEL); if (!jornadakbd) return -ENOMEM; poll_dev = input_allocate_polled_device(); if (!poll_dev) { error = -ENOMEM; goto failed; } platform_set_drvdata(pdev, jornadakbd); jornadakbd->poll_dev = poll_dev; memcpy(jornadakbd->keymap, jornada_scancodes, sizeof(jornadakbd->keymap)); poll_dev->private = jornadakbd; poll_dev->poll = jornadakbd680_poll; poll_dev->poll_interval = 50; /* msec */ input_dev = poll_dev->input; input_dev->evbit[0] = BIT(EV_KEY) | BIT(EV_REP); input_dev->name = "HP Jornada 680 keyboard"; input_dev->phys = "jornadakbd/input0"; input_dev->keycode = jornadakbd->keymap; input_dev->keycodesize = sizeof(unsigned short); input_dev->keycodemax = ARRAY_SIZE(jornada_scancodes); input_dev->dev.parent = &pdev->dev; input_dev->id.bustype = BUS_HOST; for (i = 0; i < 128; i++) if (jornadakbd->keymap[i]) __set_bit(jornadakbd->keymap[i], input_dev->keybit); __clear_bit(KEY_RESERVED, input_dev->keybit); input_set_capability(input_dev, EV_MSC, MSC_SCAN); error = input_register_polled_device(jornadakbd->poll_dev); if (error) goto failed; return 0; failed: printk(KERN_ERR "Jornadakbd: failed to register driver, error: %d\n", error); platform_set_drvdata(pdev, NULL); input_free_polled_device(poll_dev); kfree(jornadakbd); return error; } static int __devexit jornada680kbd_remove(struct platform_device *pdev) { struct jornadakbd *jornadakbd = platform_get_drvdata(pdev); platform_set_drvdata(pdev, NULL); input_unregister_polled_device(jornadakbd->poll_dev); input_free_polled_device(jornadakbd->poll_dev); kfree(jornadakbd); return 0; } static struct platform_driver jornada680kbd_driver = { .driver = { .name = "jornada680_kbd", .owner = THIS_MODULE, }, .probe = jornada680kbd_probe, .remove = __devexit_p(jornada680kbd_remove), }; static int __init jornada680kbd_init(void) { return platform_driver_register(&jornada680kbd_driver); } static void __exit jornada680kbd_exit(void) { platform_driver_unregister(&jornada680kbd_driver); } module_init(jornada680kbd_init); module_exit(jornada680kbd_exit); MODULE_AUTHOR("Kristoffer Ericson "); MODULE_DESCRIPTION("HP Jornada 620/660/680/690 Keyboard Driver"); MODULE_LICENSE("GPL v2"); MODULE_ALIAS("platform:jornada680_kbd");