| /* |
| * drivers/input/keyboard/jornada720_kbd.c |
| * |
| * HP Jornada 720 keyboard platform driver |
| * |
| * Copyright (C) 2006/2007 Kristoffer Ericson <Kristoffer.Ericson@Gmail.com> |
| * |
| * Copyright (C) 2006 jornada 720 kbd driver by |
| Filip Zyzniewsk <Filip.Zyzniewski@tefnet.plX |
| * based on (C) 2004 jornada 720 kbd driver by |
| Alex Lange <chicken@handhelds.org> |
| * |
| * 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 <linux/device.h> |
| #include <linux/errno.h> |
| #include <linux/init.h> |
| #include <linux/interrupt.h> |
| #include <linux/init.h> |
| #include <linux/input.h> |
| #include <linux/kernel.h> |
| #include <linux/module.h> |
| #include <linux/platform_device.h> |
| |
| #include <asm/arch/jornada720.h> |
| #include <asm/hardware.h> |
| |
| MODULE_AUTHOR("Kristoffer Ericson <Kristoffer.Ericson@gmail.com>"); |
| MODULE_DESCRIPTION("HP Jornada 710/720/728 keyboard driver"); |
| MODULE_LICENSE("GPLv2"); |
| |
| static unsigned short jornada_std_keymap[128] = { /* ROW */ |
| 0, KEY_ESC, KEY_F1, KEY_F2, KEY_F3, KEY_F4, KEY_F5, KEY_F6, KEY_F7, /* #1 */ |
| KEY_F8, KEY_F9, KEY_F10, KEY_F11, KEY_VOLUMEUP, KEY_VOLUMEDOWN, KEY_MUTE, /* -> */ |
| 0, KEY_1, KEY_2, KEY_3, KEY_4, KEY_5, KEY_6, KEY_7, KEY_8, KEY_9, /* #2 */ |
| KEY_0, KEY_MINUS, KEY_EQUAL,0, 0, 0, /* -> */ |
| 0, KEY_Q, KEY_W, KEY_E, KEY_R, KEY_T, KEY_Y, KEY_U, KEY_I, KEY_O, /* #3 */ |
| KEY_P, KEY_BACKSLASH, KEY_BACKSPACE, 0, 0, 0, /* -> */ |
| 0, KEY_A, KEY_S, KEY_D, KEY_F, KEY_G, KEY_H, KEY_J, KEY_K, KEY_L, /* #4 */ |
| KEY_SEMICOLON, KEY_LEFTBRACE, KEY_RIGHTBRACE, 0, 0, 0, /* -> */ |
| 0, KEY_Z, KEY_X, KEY_C, KEY_V, KEY_B, KEY_N, KEY_M, KEY_COMMA, /* #5 */ |
| KEY_DOT, KEY_KPMINUS, KEY_APOSTROPHE, KEY_ENTER, 0, 0,0, /* -> */ |
| 0, KEY_TAB, 0, KEY_LEFTSHIFT, 0, KEY_APOSTROPHE, 0, 0, 0, 0, /* #6 */ |
| KEY_UP, 0, KEY_RIGHTSHIFT, 0, 0, 0,0, 0, 0, 0, 0, KEY_LEFTALT, KEY_GRAVE, /* -> */ |
| 0, 0, KEY_LEFT, KEY_DOWN, KEY_RIGHT, 0, 0, 0, 0,0, KEY_KPASTERISK, /* -> */ |
| KEY_LEFTCTRL, 0, KEY_SPACE, 0, 0, 0, KEY_SLASH, KEY_DELETE, 0, 0, /* -> */ |
| 0, 0, 0, KEY_POWER, /* -> */ |
| }; |
| |
| struct jornadakbd { |
| unsigned short keymap[ARRAY_SIZE(jornada_std_keymap)]; |
| struct input_dev *input; |
| }; |
| |
| static irqreturn_t jornada720_kbd_interrupt(int irq, void *dev_id) |
| { |
| struct platform_device *pdev = dev_id; |
| struct jornadakbd *jornadakbd = platform_get_drvdata(pdev); |
| struct input_dev *input = jornadakbd->input; |
| u8 count, kbd_data, scan_code; |
| |
| /* startup ssp with spinlock */ |
| jornada_ssp_start(); |
| |
| if (jornada_ssp_inout(GETSCANKEYCODE) != TXDUMMY) { |
| printk(KERN_DEBUG |
| "jornada720_kbd: " |
| "GetKeycode command failed with ETIMEDOUT, " |
| "flushed bus\n"); |
| } else { |
| /* How many keycodes are waiting for us? */ |
| count = jornada_ssp_byte(TXDUMMY); |
| |
| /* Lets drag them out one at a time */ |
| while (count--) { |
| /* Exchange TxDummy for location (keymap[kbddata]) */ |
| kbd_data = jornada_ssp_byte(TXDUMMY); |
| scan_code = kbd_data & 0x7f; |
| |
| input_event(input, EV_MSC, MSC_SCAN, scan_code); |
| input_report_key(input, jornadakbd->keymap[scan_code], |
| !(kbd_data & 0x80)); |
| input_sync(input); |
| } |
| } |
| |
| /* release spinlock and turn off ssp */ |
| jornada_ssp_end(); |
| |
| return IRQ_HANDLED; |
| }; |
| |
| static int __devinit jornada720_kbd_probe(struct platform_device *pdev) |
| { |
| struct jornadakbd *jornadakbd; |
| struct input_dev *input_dev; |
| int i, err; |
| |
| jornadakbd = kzalloc(sizeof(struct jornadakbd), GFP_KERNEL); |
| input_dev = input_allocate_device(); |
| if (!jornadakbd || !input_dev) { |
| err = -ENOMEM; |
| goto fail1; |
| } |
| |
| platform_set_drvdata(pdev, jornadakbd); |
| |
| memcpy(jornadakbd->keymap, jornada_std_keymap, |
| sizeof(jornada_std_keymap)); |
| jornadakbd->input = input_dev; |
| |
| input_dev->evbit[0] = BIT(EV_KEY) | BIT(EV_REP); |
| input_dev->name = "HP Jornada 720 keyboard"; |
| input_dev->phys = "jornadakbd/input0"; |
| input_dev->keycode = jornadakbd->keymap; |
| input_dev->keycodesize = sizeof(unsigned short); |
| input_dev->keycodemax = ARRAY_SIZE(jornada_std_keymap); |
| input_dev->id.bustype = BUS_HOST; |
| input_dev->dev.parent = &pdev->dev; |
| |
| for (i = 0; i < ARRAY_SIZE(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); |
| |
| err = request_irq(IRQ_GPIO0, |
| jornada720_kbd_interrupt, |
| IRQF_DISABLED | IRQF_TRIGGER_FALLING, |
| "jornadakbd", pdev); |
| if (err) { |
| printk(KERN_INFO "jornadakbd720_kbd: Unable to grab IRQ\n"); |
| goto fail1; |
| } |
| |
| err = input_register_device(jornadakbd->input); |
| if (err) |
| goto fail2; |
| |
| return 0; |
| |
| fail2: /* IRQ, DEVICE, MEMORY */ |
| free_irq(IRQ_GPIO0, pdev); |
| fail1: /* DEVICE, MEMORY */ |
| platform_set_drvdata(pdev, NULL); |
| input_free_device(input_dev); |
| kfree(jornadakbd); |
| return err; |
| }; |
| |
| static int __devexit jornada720_kbd_remove(struct platform_device *pdev) |
| { |
| struct jornadakbd *jornadakbd = platform_get_drvdata(pdev); |
| |
| free_irq(IRQ_GPIO0, pdev); |
| platform_set_drvdata(pdev, NULL); |
| input_unregister_device(jornadakbd->input); |
| kfree(jornadakbd); |
| |
| return 0; |
| } |
| |
| static struct platform_driver jornada720_kbd_driver = { |
| .driver = { |
| .name = "jornada720_kbd", |
| }, |
| .probe = jornada720_kbd_probe, |
| .remove = __devexit_p(jornada720_kbd_remove), |
| }; |
| |
| static int __init jornada720_kbd_init(void) |
| { |
| return platform_driver_register(&jornada720_kbd_driver); |
| } |
| |
| static void __exit jornada720_kbd_exit(void) |
| { |
| platform_driver_unregister(&jornada720_kbd_driver); |
| } |
| |
| module_init(jornada720_kbd_init); |
| module_exit(jornada720_kbd_exit); |