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143 lines
4.6 KiB
143 lines
4.6 KiB
// SPDX-License-Identifier: GPL-2.0-only |
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/* |
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* drivers/input/keyboard/jornada720_kbd.c |
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* |
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* HP Jornada 720 keyboard platform driver |
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* |
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* Copyright (C) 2006/2007 Kristoffer Ericson <[email protected]> |
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* |
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* Copyright (C) 2006 jornada 720 kbd driver by |
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Filip Zyzniewsk <[email protected] |
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* based on (C) 2004 jornada 720 kbd driver by |
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Alex Lange <[email protected]> |
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*/ |
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#include <linux/device.h> |
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#include <linux/errno.h> |
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#include <linux/interrupt.h> |
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#include <linux/input.h> |
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#include <linux/kernel.h> |
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#include <linux/module.h> |
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#include <linux/platform_device.h> |
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#include <linux/slab.h> |
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#include <mach/jornada720.h> |
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MODULE_AUTHOR("Kristoffer Ericson <[email protected]>"); |
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MODULE_DESCRIPTION("HP Jornada 710/720/728 keyboard driver"); |
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MODULE_LICENSE("GPL v2"); |
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static unsigned short jornada_std_keymap[128] = { /* ROW */ |
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0, KEY_ESC, KEY_F1, KEY_F2, KEY_F3, KEY_F4, KEY_F5, KEY_F6, KEY_F7, /* #1 */ |
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KEY_F8, KEY_F9, KEY_F10, KEY_F11, KEY_VOLUMEUP, KEY_VOLUMEDOWN, KEY_MUTE, /* -> */ |
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0, KEY_1, KEY_2, KEY_3, KEY_4, KEY_5, KEY_6, KEY_7, KEY_8, KEY_9, /* #2 */ |
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KEY_0, KEY_MINUS, KEY_EQUAL,0, 0, 0, /* -> */ |
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0, KEY_Q, KEY_W, KEY_E, KEY_R, KEY_T, KEY_Y, KEY_U, KEY_I, KEY_O, /* #3 */ |
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KEY_P, KEY_BACKSLASH, KEY_BACKSPACE, 0, 0, 0, /* -> */ |
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0, KEY_A, KEY_S, KEY_D, KEY_F, KEY_G, KEY_H, KEY_J, KEY_K, KEY_L, /* #4 */ |
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KEY_SEMICOLON, KEY_LEFTBRACE, KEY_RIGHTBRACE, 0, 0, 0, /* -> */ |
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0, KEY_Z, KEY_X, KEY_C, KEY_V, KEY_B, KEY_N, KEY_M, KEY_COMMA, /* #5 */ |
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KEY_DOT, KEY_KPMINUS, KEY_APOSTROPHE, KEY_ENTER, 0, 0,0, /* -> */ |
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0, KEY_TAB, 0, KEY_LEFTSHIFT, 0, KEY_APOSTROPHE, 0, 0, 0, 0, /* #6 */ |
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KEY_UP, 0, KEY_RIGHTSHIFT, 0, 0, 0,0, 0, 0, 0, 0, KEY_LEFTALT, KEY_GRAVE, /* -> */ |
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0, 0, KEY_LEFT, KEY_DOWN, KEY_RIGHT, 0, 0, 0, 0,0, KEY_KPASTERISK, /* -> */ |
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KEY_LEFTCTRL, 0, KEY_SPACE, 0, 0, 0, KEY_SLASH, KEY_DELETE, 0, 0, /* -> */ |
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0, 0, 0, KEY_POWER, /* -> */ |
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}; |
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struct jornadakbd { |
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unsigned short keymap[ARRAY_SIZE(jornada_std_keymap)]; |
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struct input_dev *input; |
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}; |
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static irqreturn_t jornada720_kbd_interrupt(int irq, void *dev_id) |
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{ |
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struct platform_device *pdev = dev_id; |
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struct jornadakbd *jornadakbd = platform_get_drvdata(pdev); |
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struct input_dev *input = jornadakbd->input; |
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u8 count, kbd_data, scan_code; |
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/* startup ssp with spinlock */ |
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jornada_ssp_start(); |
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if (jornada_ssp_inout(GETSCANKEYCODE) != TXDUMMY) { |
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dev_dbg(&pdev->dev, |
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"GetKeycode command failed with ETIMEDOUT, flushed bus\n"); |
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} else { |
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/* How many keycodes are waiting for us? */ |
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count = jornada_ssp_byte(TXDUMMY); |
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/* Lets drag them out one at a time */ |
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while (count--) { |
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/* Exchange TxDummy for location (keymap[kbddata]) */ |
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kbd_data = jornada_ssp_byte(TXDUMMY); |
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scan_code = kbd_data & 0x7f; |
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input_event(input, EV_MSC, MSC_SCAN, scan_code); |
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input_report_key(input, jornadakbd->keymap[scan_code], |
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!(kbd_data & 0x80)); |
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input_sync(input); |
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} |
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} |
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/* release spinlock and turn off ssp */ |
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jornada_ssp_end(); |
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return IRQ_HANDLED; |
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}; |
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static int jornada720_kbd_probe(struct platform_device *pdev) |
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{ |
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struct jornadakbd *jornadakbd; |
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struct input_dev *input_dev; |
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int i, err, irq; |
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irq = platform_get_irq(pdev, 0); |
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if (irq <= 0) |
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return irq < 0 ? irq : -EINVAL; |
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jornadakbd = devm_kzalloc(&pdev->dev, sizeof(*jornadakbd), GFP_KERNEL); |
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input_dev = devm_input_allocate_device(&pdev->dev); |
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if (!jornadakbd || !input_dev) |
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return -ENOMEM; |
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platform_set_drvdata(pdev, jornadakbd); |
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memcpy(jornadakbd->keymap, jornada_std_keymap, |
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sizeof(jornada_std_keymap)); |
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jornadakbd->input = input_dev; |
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input_dev->evbit[0] = BIT(EV_KEY) | BIT(EV_REP); |
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input_dev->name = "HP Jornada 720 keyboard"; |
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input_dev->phys = "jornadakbd/input0"; |
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input_dev->keycode = jornadakbd->keymap; |
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input_dev->keycodesize = sizeof(unsigned short); |
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input_dev->keycodemax = ARRAY_SIZE(jornada_std_keymap); |
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input_dev->id.bustype = BUS_HOST; |
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input_dev->dev.parent = &pdev->dev; |
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for (i = 0; i < ARRAY_SIZE(jornadakbd->keymap); i++) |
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__set_bit(jornadakbd->keymap[i], input_dev->keybit); |
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__clear_bit(KEY_RESERVED, input_dev->keybit); |
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input_set_capability(input_dev, EV_MSC, MSC_SCAN); |
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err = devm_request_irq(&pdev->dev, irq, jornada720_kbd_interrupt, |
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IRQF_TRIGGER_FALLING, "jornadakbd", pdev); |
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if (err) { |
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dev_err(&pdev->dev, "unable to grab IRQ%d: %d\n", irq, err); |
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return err; |
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} |
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return input_register_device(jornadakbd->input); |
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}; |
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/* work with hotplug and coldplug */ |
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MODULE_ALIAS("platform:jornada720_kbd"); |
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static struct platform_driver jornada720_kbd_driver = { |
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.driver = { |
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.name = "jornada720_kbd", |
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}, |
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.probe = jornada720_kbd_probe, |
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}; |
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module_platform_driver(jornada720_kbd_driver);
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