| Author | Tokens | Token Proportion | Commits | Commit Proportion |
|---|---|---|---|---|
| 968 | 81.48% | 3 | 23.08% | |
| 199 | 16.75% | 2 | 15.38% | |
| 6 | 0.51% | 1 | 7.69% | |
| 4 | 0.34% | 1 | 7.69% | |
| 3 | 0.25% | 1 | 7.69% | |
| 2 | 0.17% | 1 | 7.69% | |
| 2 | 0.17% | 1 | 7.69% | |
| 2 | 0.17% | 1 | 7.69% | |
| 1 | 0.08% | 1 | 7.69% | |
| 1 | 0.08% | 1 | 7.69% | |
| Total | 1188 | 13 |
| Author | Tokens | Token Proportion | Commits | Commit Proportion |
|---|---|---|---|---|
| Wan ZongShun | 968 | 81.48% | 3 | 23.08% |
| Dmitry Torokhov | 199 | 16.75% | 2 | 15.38% |
| Julia Lawall | 6 | 0.51% | 1 | 7.69% |
| Jingoo Han | 4 | 0.34% | 1 | 7.69% |
| Tejun Heo | 3 | 0.25% | 1 | 7.69% |
| JJ Ding | 2 | 0.17% | 1 | 7.69% |
| Lars-Peter Clausen | 2 | 0.17% | 1 | 7.69% |
| Thomas Gleixner | 2 | 0.17% | 1 | 7.69% |
| Arnd Bergmann | 1 | 0.08% | 1 | 7.69% |
| Yong Zhang | 1 | 0.08% | 1 | 7.69% |
| Total | 1188 | 13 |
// SPDX-License-Identifier: GPL-2.0-only /* * Copyright (c) 2008-2009 Nuvoton technology corporation. * * Wan ZongShun <mcuos.com@gmail.com> */ #include <linux/kernel.h> #include <linux/module.h> #include <linux/interrupt.h> #include <linux/input.h> #include <linux/device.h> #include <linux/platform_device.h> #include <linux/clk.h> #include <linux/err.h> #include <linux/io.h> #include <linux/slab.h> #include <linux/platform_data/keypad-w90p910.h> /* Keypad Interface Control Registers */ #define KPI_CONF 0x00 #define KPI_3KCONF 0x04 #define KPI_LPCONF 0x08 #define KPI_STATUS 0x0C #define IS1KEY (0x01 << 16) #define INTTR (0x01 << 21) #define KEY0R (0x0f << 3) #define KEY0C 0x07 #define DEBOUNCE_BIT 0x08 #define KSIZE0 (0x01 << 16) #define KSIZE1 (0x01 << 17) #define KPSEL (0x01 << 19) #define ENKP (0x01 << 18) #define KGET_RAW(n) (((n) & KEY0R) >> 3) #define KGET_COLUMN(n) ((n) & KEY0C) #define W90P910_NUM_ROWS 8 #define W90P910_NUM_COLS 8 #define W90P910_ROW_SHIFT 3 struct w90p910_keypad { const struct w90p910_keypad_platform_data *pdata; struct clk *clk; struct input_dev *input_dev; void __iomem *mmio_base; int irq; unsigned short keymap[W90P910_NUM_ROWS * W90P910_NUM_COLS]; }; static void w90p910_keypad_scan_matrix(struct w90p910_keypad *keypad, unsigned int status) { struct input_dev *input_dev = keypad->input_dev; unsigned int row = KGET_RAW(status); unsigned int col = KGET_COLUMN(status); unsigned int code = MATRIX_SCAN_CODE(row, col, W90P910_ROW_SHIFT); unsigned int key = keypad->keymap[code]; input_event(input_dev, EV_MSC, MSC_SCAN, code); input_report_key(input_dev, key, 1); input_sync(input_dev); input_event(input_dev, EV_MSC, MSC_SCAN, code); input_report_key(input_dev, key, 0); input_sync(input_dev); } static irqreturn_t w90p910_keypad_irq_handler(int irq, void *dev_id) { struct w90p910_keypad *keypad = dev_id; unsigned int kstatus, val; kstatus = __raw_readl(keypad->mmio_base + KPI_STATUS); val = INTTR | IS1KEY; if (kstatus & val) w90p910_keypad_scan_matrix(keypad, kstatus); return IRQ_HANDLED; } static int w90p910_keypad_open(struct input_dev *dev) { struct w90p910_keypad *keypad = input_get_drvdata(dev); const struct w90p910_keypad_platform_data *pdata = keypad->pdata; unsigned int val, config; /* Enable unit clock */ clk_enable(keypad->clk); val = __raw_readl(keypad->mmio_base + KPI_CONF); val |= (KPSEL | ENKP); val &= ~(KSIZE0 | KSIZE1); config = pdata->prescale | (pdata->debounce << DEBOUNCE_BIT); val |= config; __raw_writel(val, keypad->mmio_base + KPI_CONF); return 0; } static void w90p910_keypad_close(struct input_dev *dev) { struct w90p910_keypad *keypad = input_get_drvdata(dev); /* Disable clock unit */ clk_disable(keypad->clk); } static int w90p910_keypad_probe(struct platform_device *pdev) { const struct w90p910_keypad_platform_data *pdata = dev_get_platdata(&pdev->dev); const struct matrix_keymap_data *keymap_data; struct w90p910_keypad *keypad; struct input_dev *input_dev; struct resource *res; int irq; int error; if (!pdata) { dev_err(&pdev->dev, "no platform data defined\n"); return -EINVAL; } keymap_data = pdata->keymap_data; irq = platform_get_irq(pdev, 0); if (irq < 0) { dev_err(&pdev->dev, "failed to get keypad irq\n"); return -ENXIO; } keypad = kzalloc(sizeof(struct w90p910_keypad), GFP_KERNEL); input_dev = input_allocate_device(); if (!keypad || !input_dev) { dev_err(&pdev->dev, "failed to allocate driver data\n"); error = -ENOMEM; goto failed_free; } keypad->pdata = pdata; keypad->input_dev = input_dev; keypad->irq = irq; res = platform_get_resource(pdev, IORESOURCE_MEM, 0); if (res == NULL) { dev_err(&pdev->dev, "failed to get I/O memory\n"); error = -ENXIO; goto failed_free; } res = request_mem_region(res->start, resource_size(res), pdev->name); if (res == NULL) { dev_err(&pdev->dev, "failed to request I/O memory\n"); error = -EBUSY; goto failed_free; } keypad->mmio_base = ioremap(res->start, resource_size(res)); if (keypad->mmio_base == NULL) { dev_err(&pdev->dev, "failed to remap I/O memory\n"); error = -ENXIO; goto failed_free_res; } keypad->clk = clk_get(&pdev->dev, NULL); if (IS_ERR(keypad->clk)) { dev_err(&pdev->dev, "failed to get keypad clock\n"); error = PTR_ERR(keypad->clk); goto failed_free_io; } /* set multi-function pin for w90p910 kpi. */ mfp_set_groupi(&pdev->dev); input_dev->name = pdev->name; input_dev->id.bustype = BUS_HOST; input_dev->open = w90p910_keypad_open; input_dev->close = w90p910_keypad_close; input_dev->dev.parent = &pdev->dev; error = matrix_keypad_build_keymap(keymap_data, NULL, W90P910_NUM_ROWS, W90P910_NUM_COLS, keypad->keymap, input_dev); if (error) { dev_err(&pdev->dev, "failed to build keymap\n"); goto failed_put_clk; } error = request_irq(keypad->irq, w90p910_keypad_irq_handler, 0, pdev->name, keypad); if (error) { dev_err(&pdev->dev, "failed to request IRQ\n"); goto failed_put_clk; } __set_bit(EV_REP, input_dev->evbit); input_set_capability(input_dev, EV_MSC, MSC_SCAN); input_set_drvdata(input_dev, keypad); /* Register the input device */ error = input_register_device(input_dev); if (error) { dev_err(&pdev->dev, "failed to register input device\n"); goto failed_free_irq; } platform_set_drvdata(pdev, keypad); return 0; failed_free_irq: free_irq(irq, keypad); failed_put_clk: clk_put(keypad->clk); failed_free_io: iounmap(keypad->mmio_base); failed_free_res: release_mem_region(res->start, resource_size(res)); failed_free: input_free_device(input_dev); kfree(keypad); return error; } static int w90p910_keypad_remove(struct platform_device *pdev) { struct w90p910_keypad *keypad = platform_get_drvdata(pdev); struct resource *res; free_irq(keypad->irq, keypad); clk_put(keypad->clk); input_unregister_device(keypad->input_dev); iounmap(keypad->mmio_base); res = platform_get_resource(pdev, IORESOURCE_MEM, 0); release_mem_region(res->start, resource_size(res)); kfree(keypad); return 0; } static struct platform_driver w90p910_keypad_driver = { .probe = w90p910_keypad_probe, .remove = w90p910_keypad_remove, .driver = { .name = "nuc900-kpi", }, }; module_platform_driver(w90p910_keypad_driver); MODULE_AUTHOR("Wan ZongShun <mcuos.com@gmail.com>"); MODULE_DESCRIPTION("w90p910 keypad driver"); MODULE_LICENSE("GPL"); MODULE_ALIAS("platform:nuc900-keypad");