mirror of https://github.com/OpenIPC/firmware.git
686 lines
18 KiB
Diff
686 lines
18 KiB
Diff
diff -drupN a/drivers/input/keyboard/sunxi-keyboard.c b/drivers/input/keyboard/sunxi-keyboard.c
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--- a/drivers/input/keyboard/sunxi-keyboard.c 1970-01-01 03:00:00.000000000 +0300
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+++ b/drivers/input/keyboard/sunxi-keyboard.c 2022-06-12 05:28:14.000000000 +0300
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@@ -0,0 +1,681 @@
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+/*
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+ * Based on drivers/input/keyboard/sunxi-keyboard.c
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+ *
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+ * Copyright (C) 2015 Allwinnertech Ltd.
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+ *
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+ * This program is free software; you can redistribute it and/or modify
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+ * it under the terms of the GNU General Public License version 2 as
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+ * published by the Free Software Foundation.
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+ *
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+ * This program is distributed in the hope that it will be useful,
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+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
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+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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+ * GNU General Public License for more details.
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+ *
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+ * You should have received a copy of the GNU General Public License
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+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
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+ */
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+#include <linux/module.h>
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+#include <linux/init.h>
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+#include <linux/input.h>
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+#include <linux/delay.h>
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+#include <linux/slab.h>
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+#include <linux/interrupt.h>
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+#include <linux/keyboard.h>
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+#include <linux/ioport.h>
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+#include <asm/irq.h>
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+#include <asm/io.h>
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+#include <linux/timer.h>
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+#include <linux/clk.h>
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+#include <linux/irq.h>
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+#include <linux/of_platform.h>
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+#include <linux/of_irq.h>
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+#include <linux/of_address.h>
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+
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+#include <linux/iio/iio.h>
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+#include <linux/iio/machine.h>
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+#include <linux/iio/driver.h>
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+
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+#if defined(CONFIG_PM)
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+#include <linux/pm.h>
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+#endif
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+#include "sunxi-keyboard.h"
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+
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+static unsigned char keypad_mapindex[64] = {
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+ 0, 0, 0, 0, 0, 0, 0, 0, 0, /* key 1, 0-8 */
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+ 1, 1, 1, 1, 1, /* key 2, 9-13 */
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+ 2, 2, 2, 2, 2, 2, /* key 3, 14-19 */
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+ 3, 3, 3, 3, 3, 3, /* key 4, 20-25 */
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+ 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, /* key 5, 26-36 */
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+ 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, /* key 6, 37-39 */
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+ 6, 6, 6, 6, 6, 6, 6, 6, 6, /* key 7, 40-49 */
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+ 7, 7, 7, 7, 7, 7, 7 /* key 8, 50-63 */
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+};
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+
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+#define INITIAL_VALUE (0xff)
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+#define VOL_NUM KEY_MAX_CNT
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+
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+struct sunxi_key_data {
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+ struct platform_device *pdev;
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+ struct clk *mclk;
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+ struct clk *pclk;
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+ struct input_dev *input_dev;
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+ struct sunxi_adc_disc *disc;
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+ void __iomem *reg_base;
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+ u32 scankeycodes[KEY_MAX_CNT];
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+ int irq_num;
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+ u32 key_val;
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+ unsigned char compare_later;
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+ unsigned char compare_before;
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+ u8 key_code;
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+ u8 last_key_code;
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+ char key_name[16];
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+ u8 key_cnt;
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+ int wakeup;
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+};
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+
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+static struct sunxi_adc_disc disc_1350 = {
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+ .measure = 1350,
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+ .resol = 21,
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+};
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+static struct sunxi_adc_disc disc_1200 = {
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+ .measure = 1200,
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+ .resol = 19,
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+};
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+static struct sunxi_adc_disc disc_2000 = {
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+ .measure = 2000,
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+ .resol = 31,
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+};
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+
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+#ifdef CONFIG_OF
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+/*
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+ * Translate OpenFirmware node properties into platform_data
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+ */
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+static struct of_device_id const sunxi_keyboard_of_match[] = {
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+ { .compatible = "allwinner,keyboard_1350mv",
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+ .data = &disc_1350 },
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+ { .compatible = "allwinner,keyboard_1200mv",
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+ .data = &disc_1200 },
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+ { .compatible = "allwinner,keyboard_2000mv",
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+ .data = &disc_2000 },
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+ { },
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+};
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+MODULE_DEVICE_TABLE(of, sunxi_keyboard_of_match);
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+#else /* !CONFIG_OF */
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+#endif
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+
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+static void sunxi_keyboard_ctrl_set(void __iomem *reg_base,
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+ enum key_mode key_mode, u32 para)
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+{
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+ u32 ctrl_reg = 0;
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+
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+ if (para != 0)
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+ ctrl_reg = readl(reg_base + LRADC_CTRL);
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+ if (CONCERT_DLY_SET & key_mode)
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+ ctrl_reg |= (FIRST_CONCERT_DLY & para);
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+ if (ADC_CHAN_SET & key_mode)
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+ ctrl_reg |= (ADC_CHAN_SELECT & para);
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+ if (KEY_MODE_SET & key_mode)
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+ ctrl_reg |= (KEY_MODE_SELECT & para);
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+ if (LRADC_HOLD_SET & key_mode)
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+ ctrl_reg |= (LRADC_HOLD_EN & para);
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+ if (LEVELB_VOL_SET & key_mode) {
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+ ctrl_reg |= (LEVELB_VOL & para);
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+#if defined(CONFIG_ARCH_SUN8IW18)
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+ ctrl_reg &= ~(u32)(3 << 4);
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+#endif
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+ }
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+ if (LRADC_SAMPLE_SET & key_mode)
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+ ctrl_reg |= (LRADC_SAMPLE_250HZ & para);
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+ if (LRADC_EN_SET & key_mode)
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+ ctrl_reg |= (LRADC_EN & para);
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+
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+ writel(ctrl_reg, reg_base + LRADC_CTRL);
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+}
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+
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+static void sunxi_keyboard_int_set(void __iomem *reg_base,
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+ enum int_mode int_mode, u32 para)
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+{
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+ u32 ctrl_reg = 0;
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+
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+ if (para != 0)
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+ ctrl_reg = readl(reg_base + LRADC_INTC);
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+
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+ if (ADC0_DOWN_INT_SET & int_mode)
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+ ctrl_reg |= (LRADC_ADC0_DOWN_EN & para);
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+ if (ADC0_UP_INT_SET & int_mode)
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+ ctrl_reg |= (LRADC_ADC0_UP_EN & para);
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+ if (ADC0_DATA_INT_SET & int_mode)
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+ ctrl_reg |= (LRADC_ADC0_DATA_EN & para);
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+
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+ writel(ctrl_reg, reg_base + LRADC_INTC);
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+}
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+
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+static u32 sunxi_keyboard_read_ints(void __iomem *reg_base)
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+{
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+ u32 reg_val;
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+
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+ reg_val = readl(reg_base + LRADC_INT_STA);
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+
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+ return reg_val;
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+}
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+
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+static void sunxi_keyboard_clr_ints(void __iomem *reg_base, u32 reg_val)
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+{
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+ writel(reg_val, reg_base + LRADC_INT_STA);
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+}
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+
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+static u32 sunxi_keyboard_read_data(void __iomem *reg_base)
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+{
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+ u32 reg_val;
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+
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+ reg_val = readl(reg_base + LRADC_DATA0);
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+
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+ return reg_val;
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+}
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+
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+#ifdef CONFIG_PM
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+static int sunxi_keyboard_suspend(struct device *dev)
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+{
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+ struct platform_device *pdev = to_platform_device(dev);
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+ struct sunxi_key_data *key_data = platform_get_drvdata(pdev);
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+
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+ pr_debug("[%s] enter standby\n", __func__);
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+
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+ if (device_may_wakeup(dev)) {
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+ if (key_data->wakeup)
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+ enable_irq_wake(key_data->irq_num);
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+ } else {
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+ disable_irq_nosync(key_data->irq_num);
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+
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+ sunxi_keyboard_ctrl_set(key_data->reg_base, 0, 0);
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+
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+ if (IS_ERR_OR_NULL(key_data->mclk))
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+ pr_warn("%s apb1_keyadc mclk handle is invalid!\n",
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+ __func__);
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+ else
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+ clk_disable_unprepare(key_data->mclk);
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+ }
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+
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+ return 0;
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+}
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+
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+static int sunxi_keyboard_resume(struct device *dev)
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+{
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+ struct platform_device *pdev = to_platform_device(dev);
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+ struct sunxi_key_data *key_data = platform_get_drvdata(pdev);
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+ unsigned long mode, para;
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+
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+ pr_debug("[%s] return from standby\n", __func__);
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+
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+ if (device_may_wakeup(dev)) {
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+ if (key_data->wakeup)
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+ disable_irq_wake(key_data->irq_num);
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+ } else {
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+ if (IS_ERR_OR_NULL(key_data->mclk))
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+ pr_warn("%s apb1_keyadc mclk handle is invalid!\n",
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+ __func__);
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+ else
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+ clk_prepare_enable(key_data->mclk);
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+
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+ mode = ADC0_DOWN_INT_SET | ADC0_UP_INT_SET | ADC0_DATA_INT_SET;
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+ para = LRADC_ADC0_DOWN_EN | LRADC_ADC0_UP_EN
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+ | LRADC_ADC0_DATA_EN;
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+ sunxi_keyboard_int_set(key_data->reg_base, mode, para);
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+ mode = CONCERT_DLY_SET | ADC_CHAN_SET | KEY_MODE_SET
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+ | LRADC_HOLD_SET | LEVELB_VOL_SET
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+ | LRADC_SAMPLE_SET | LRADC_EN_SET;
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+ para = FIRST_CONCERT_DLY | LEVELB_VOL|KEY_MODE_SELECT
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+ | LRADC_HOLD_EN | ADC_CHAN_SELECT
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+ | LRADC_SAMPLE_250HZ|LRADC_EN;
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+ sunxi_keyboard_ctrl_set(key_data->reg_base, mode, para);
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+
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+ enable_irq(key_data->irq_num);
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+ }
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+
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+ return 0;
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+}
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+#endif
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+
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+static void sunxi_report_key_down_event(struct sunxi_key_data *key_data)
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+{
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+ if (key_data->last_key_code == INITIAL_VALUE) {
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+ /* first time report key down event */
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+ input_report_key(key_data->input_dev,
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+ key_data->scankeycodes[key_data->key_code], 1);
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+ input_sync(key_data->input_dev);
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+ key_data->last_key_code = key_data->key_code;
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+ return;
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+ }
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+ if (key_data->scankeycodes[key_data->key_code] ==
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+ key_data->scankeycodes[key_data->last_key_code]) {
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+#ifdef REPORT_REPEAT_KEY_BY_INPUT_CORE
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+ /* report repeat key down event */
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+ input_report_key(key_data->input_dev,
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+ key_data->scankeycodes[key_data->key_code], 1);
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+ input_sync(key_data->input_dev);
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+#endif
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+ } else {
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+ /* report previous key up event
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+ * and report current key down event
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+ */
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+ input_report_key(key_data->input_dev,
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+ key_data->scankeycodes[key_data->last_key_code], 0);
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+ input_sync(key_data->input_dev);
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+ input_report_key(key_data->input_dev,
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+ key_data->scankeycodes[key_data->key_code], 1);
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+ input_sync(key_data->input_dev);
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+ key_data->last_key_code = key_data->key_code;
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+ }
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+}
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+
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+static irqreturn_t sunxi_isr_key(int irq, void *dummy)
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+{
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+ struct sunxi_key_data *key_data = (struct sunxi_key_data *)dummy;
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+ u32 reg_val = 0;
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+ u32 key_val = 0;
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+
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+ pr_debug("Key Interrupt\n");
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+ reg_val = sunxi_keyboard_read_ints(key_data->reg_base);
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+ if (reg_val & LRADC_ADC0_DOWNPEND)
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+ pr_debug("key down\n");
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+
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+ if (reg_val & LRADC_ADC0_DATAPEND) {
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+ key_data->key_cnt++;
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+ key_val = sunxi_keyboard_read_data(key_data->reg_base);
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+ key_data->compare_before = key_val&0x3f;
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+ if (key_data->compare_before == key_data->compare_later) {
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+ key_data->key_code = keypad_mapindex[key_val&0x3f];
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+ sunxi_report_key_down_event(key_data);
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+ key_data->key_cnt = 0;
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+ }
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+ if (key_data->key_cnt == 2) {
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+ key_data->compare_later = key_data->compare_before;
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+ key_data->key_cnt = 0;
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+ }
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+ }
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+
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+ if (reg_val & LRADC_ADC0_UPPEND) {
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+ if (key_data->wakeup)
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+ pm_wakeup_event(key_data->input_dev->dev.parent, 0);
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+ pr_debug("report data:%8d key_val:%8d\n",
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+ key_data->scankeycodes[key_data->key_code],
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+ key_val);
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+ input_report_key(key_data->input_dev,
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+ key_data->scankeycodes[key_data->key_code], 0);
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+ input_sync(key_data->input_dev);
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+ pr_debug("key up\n");
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+ key_data->key_cnt = 0;
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+ key_data->compare_later = 0;
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+ key_data->last_key_code = INITIAL_VALUE;
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+ }
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+
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+ sunxi_keyboard_clr_ints(key_data->reg_base, reg_val);
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+
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+ return IRQ_HANDLED;
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+}
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+
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+static int sunxi_keyboard_startup(struct sunxi_key_data *key_data,
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+ struct platform_device *pdev)
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+{
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+ struct device_node *np = NULL;
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+ int ret = 0;
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+
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+ np = pdev->dev.of_node;
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+ if (!of_device_is_available(np)) {
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+ pr_err("%s: sunxi keyboard is disable\n", __func__);
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+ return -EPERM;
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+ }
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+ key_data->reg_base = of_iomap(np, 0);
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+ if (key_data->reg_base == 0) {
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+ pr_err("%s:Failed to ioremap() io memory region.\n", __func__);
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+ ret = -EBUSY;
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+ } else
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+ pr_debug("key base: %p !\n", key_data->reg_base);
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+
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+ key_data->irq_num = irq_of_parse_and_map(np, 0);
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+ if (key_data->irq_num == 0) {
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+ pr_err("%s:Failed to map irq.\n", __func__);
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+ ret = -EBUSY;
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+ } else
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+ pr_debug("ir irq num: %d !\n", key_data->irq_num);
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+
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+ /* some IC will use clock gating while others HW use 24MHZ, So just try
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+ * to get the clock, if it doesn't exist, give warning instead of error
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+ */
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+ key_data->mclk = of_clk_get(np, 0);
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+ if (IS_ERR_OR_NULL(key_data->mclk)) {
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+ pr_debug("%s: keyboard has no clk.\n", __func__);
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+ } else{
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+ if (clk_prepare_enable(key_data->mclk)) {
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+ pr_err("%s enable apb1_keyadc clock failed!\n",
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+ __func__);
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+ return -EINVAL;
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+ }
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+ }
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+ return ret;
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+}
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+
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+static int sunxikbd_key_init(struct sunxi_key_data *key_data,
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+ struct platform_device *pdev)
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+{
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+ struct device_node *np = NULL;
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+ const struct of_device_id *match;
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+ struct sunxi_adc_disc *disc;
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+ int i, j = 0;
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+ u32 val[2] = {0, 0};
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+ u32 key_num = 0;
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+ u32 key_vol[VOL_NUM];
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+
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+ np = pdev->dev.of_node;
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+ match = of_match_node(sunxi_keyboard_of_match, np);
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+ disc = (struct sunxi_adc_disc *)match->data;
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+ key_data->disc = disc;
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+ if (of_property_read_u32(np, "key_cnt", &key_num)) {
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+ pr_err("%s: get key count failed", __func__);
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+ return -EBUSY;
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+ }
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+ pr_debug("%s key number = %d.\n", __func__, key_num);
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+ if (key_num < 1 || key_num > VOL_NUM) {
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+ pr_err("incorrect key number.\n");
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+ return -1;
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+ }
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+ for (i = 0; i < key_num; i++) {
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+ sprintf(key_data->key_name, "key%d", i);
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+ if (of_property_read_u32_array(np, key_data->key_name,
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+ val, ARRAY_SIZE(val))) {
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+ pr_err("%s:get%s err!\n", __func__, key_data->key_name);
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+ return -EBUSY;
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+ }
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+ key_vol[i] = val[0];
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+ key_data->scankeycodes[i] = val[1];
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+ pr_debug("%s: key%d vol= %d code= %d\n", __func__, i,
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+ key_vol[i], key_data->scankeycodes[i]);
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+ }
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+ key_vol[key_num] = disc->measure;
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+ for (i = 0; i < key_num; i++)
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+ key_vol[i] += (key_vol[i+1] - key_vol[i])/2;
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+
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+ for (i = 0; i < 64; i++) {
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+ if (i * disc->resol > key_vol[j])
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+ j++;
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+ keypad_mapindex[i] = j;
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+ }
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+
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+ key_data->wakeup = of_property_read_bool(np, "wakeup-source");
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+ device_init_wakeup(&pdev->dev, key_data->wakeup);
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+
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+ key_data->last_key_code = INITIAL_VALUE;
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+
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+ return 0;
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+}
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+
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+#ifdef CONFIG_IIO
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+struct sunxi_lradc_iio {
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+ struct sunxi_key_data *key_data;
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+};
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+
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+static const struct iio_chan_spec sunxi_lradc_channels[] = {
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+ {
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+ .indexed = 1,
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+ .type = IIO_VOLTAGE,
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+ .channel = 0,
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+ .datasheet_name = "LRADC",
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+ .info_mask_separate = BIT(IIO_CHAN_INFO_RAW),
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+ },
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+};
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+
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+/* default maps used by iio consumer (axp charger driver) */
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|
+static struct iio_map sunxi_lradc_default_iio_maps[] = {
|
|
+ {
|
|
+ .consumer_dev_name = "axp-charger",
|
|
+ .consumer_channel = "axp-battery-lradc",
|
|
+ .adc_channel_label = "LRADC",
|
|
+ },
|
|
+ { }
|
|
+};
|
|
+
|
|
+static int sunxi_lradc_read_raw(struct iio_dev *indio_dev,
|
|
+ struct iio_chan_spec const *chan,
|
|
+ int *val, int *val2, long mask)
|
|
+{
|
|
+ int ret = 0;
|
|
+ int key_val, id_vol;
|
|
+ struct sunxi_lradc_iio *info = iio_priv(indio_dev);
|
|
+ struct sunxi_key_data *key_data = info->key_data;
|
|
+ struct sunxi_adc_disc *disc = key_data->disc;
|
|
+
|
|
+ mutex_lock(&indio_dev->mlock);
|
|
+ switch (mask) {
|
|
+ case IIO_CHAN_INFO_RAW:
|
|
+ key_val = sunxi_keyboard_read_data(key_data->reg_base) & 0x3f;
|
|
+ id_vol = key_val * disc->resol;
|
|
+ *val = id_vol;
|
|
+ break;
|
|
+ default:
|
|
+ ret = -EINVAL;
|
|
+ }
|
|
+ mutex_unlock(&indio_dev->mlock);
|
|
+
|
|
+ return ret;
|
|
+}
|
|
+
|
|
+static const struct iio_info sunxi_lradc_iio_info = {
|
|
+ .read_raw = &sunxi_lradc_read_raw,
|
|
+ .driver_module = THIS_MODULE,
|
|
+};
|
|
+
|
|
+static void sunxi_lradc_remove_iio(void *_data)
|
|
+{
|
|
+ struct iio_dev *indio_dev = _data;
|
|
+
|
|
+ if (IS_ERR_OR_NULL(indio_dev)) {
|
|
+ pr_err("indio_dev is null\n");
|
|
+ } else {
|
|
+ iio_device_unregister(indio_dev);
|
|
+ iio_map_array_unregister(indio_dev);
|
|
+ }
|
|
+}
|
|
+
|
|
+static int sunxi_keyboard_iio_init(struct platform_device *pdev)
|
|
+{
|
|
+ int ret;
|
|
+ struct iio_dev *indio_dev;
|
|
+ struct sunxi_lradc_iio *info;
|
|
+ struct sunxi_key_data *key_data = platform_get_drvdata(pdev);
|
|
+
|
|
+ indio_dev = devm_iio_device_alloc(&pdev->dev, sizeof(*info));
|
|
+ if (!indio_dev)
|
|
+ return -ENOMEM;
|
|
+
|
|
+ info = iio_priv(indio_dev);
|
|
+ info->key_data = key_data;
|
|
+
|
|
+ indio_dev->dev.parent = &pdev->dev;
|
|
+ indio_dev->name = pdev->name;
|
|
+ indio_dev->channels = sunxi_lradc_channels;
|
|
+ indio_dev->num_channels = ARRAY_SIZE(sunxi_lradc_channels);
|
|
+ indio_dev->info = &sunxi_lradc_iio_info;
|
|
+ indio_dev->modes = INDIO_DIRECT_MODE;
|
|
+ ret = iio_map_array_register(indio_dev, sunxi_lradc_default_iio_maps);
|
|
+ if (ret < 0)
|
|
+ return ret;
|
|
+
|
|
+ ret = iio_device_register(indio_dev);
|
|
+ if (ret < 0) {
|
|
+ dev_err(&pdev->dev, "unable to register iio device\n");
|
|
+ goto err_array_unregister;
|
|
+ }
|
|
+
|
|
+ ret = devm_add_action(&pdev->dev,
|
|
+ sunxi_lradc_remove_iio, indio_dev);
|
|
+ if (ret) {
|
|
+ dev_err(&pdev->dev, "unable to add iio cleanup action\n");
|
|
+ goto err_iio_unregister;
|
|
+ }
|
|
+
|
|
+ return 0;
|
|
+
|
|
+err_iio_unregister:
|
|
+ iio_device_unregister(indio_dev);
|
|
+
|
|
+err_array_unregister:
|
|
+ iio_map_array_unregister(indio_dev);
|
|
+
|
|
+ return ret;
|
|
+}
|
|
+#else
|
|
+static inline int sunxi_keyboard_iio_init(struct platform_device *pdev)
|
|
+{
|
|
+ return -ENODEV;
|
|
+}
|
|
+#endif
|
|
+
|
|
+static int sunxi_keyboard_probe(struct platform_device *pdev)
|
|
+{
|
|
+ static struct input_dev *sunxikbd_dev;
|
|
+ struct sunxi_key_data *key_data;
|
|
+ unsigned long mode, para;
|
|
+ int i;
|
|
+ int err = 0;
|
|
+
|
|
+ key_data = kzalloc(sizeof(*key_data), GFP_KERNEL);
|
|
+ if (IS_ERR_OR_NULL(key_data)) {
|
|
+ pr_err("key_data: not enough memory for key data\n");
|
|
+ return -ENOMEM;
|
|
+ }
|
|
+
|
|
+ pr_debug("sunxikbd_init\n");
|
|
+ if (pdev->dev.of_node) {
|
|
+ /* get dt and sysconfig */
|
|
+ err = sunxi_keyboard_startup(key_data, pdev);
|
|
+ } else {
|
|
+ pr_err("sunxi keyboard device tree err!\n");
|
|
+ return -EBUSY;
|
|
+ }
|
|
+
|
|
+ if (err < 0)
|
|
+ goto fail1;
|
|
+
|
|
+ if (sunxikbd_key_init(key_data, pdev)) {
|
|
+ err = -EFAULT;
|
|
+ goto fail1;
|
|
+ }
|
|
+
|
|
+ sunxikbd_dev = input_allocate_device();
|
|
+ if (!sunxikbd_dev) {
|
|
+ pr_err("sunxikbd: not enough memory for input device\n");
|
|
+ err = -ENOMEM;
|
|
+ goto fail1;
|
|
+ }
|
|
+
|
|
+ sunxikbd_dev->name = INPUT_DEV_NAME;
|
|
+ sunxikbd_dev->phys = "sunxikbd/input0";
|
|
+ sunxikbd_dev->id.bustype = BUS_HOST;
|
|
+ sunxikbd_dev->id.vendor = 0x0001;
|
|
+ sunxikbd_dev->id.product = 0x0001;
|
|
+ sunxikbd_dev->id.version = 0x0100;
|
|
+
|
|
+#ifdef REPORT_REPEAT_KEY_BY_INPUT_CORE
|
|
+ sunxikbd_dev->evbit[0] = BIT_MASK(EV_KEY)|BIT_MASK(EV_REP);
|
|
+ pr_info("support report repeat key value.\n");
|
|
+#else
|
|
+ sunxikbd_dev->evbit[0] = BIT_MASK(EV_KEY);
|
|
+#endif
|
|
+
|
|
+ for (i = 0; i < KEY_MAX_CNT; i++)
|
|
+ set_bit(key_data->scankeycodes[i], sunxikbd_dev->keybit);
|
|
+ key_data->input_dev = sunxikbd_dev;
|
|
+ platform_set_drvdata(pdev, key_data);
|
|
+#ifdef ONE_CHANNEL
|
|
+ mode = ADC0_DOWN_INT_SET | ADC0_UP_INT_SET | ADC0_DATA_INT_SET;
|
|
+ para = LRADC_ADC0_DOWN_EN | LRADC_ADC0_UP_EN | LRADC_ADC0_DATA_EN;
|
|
+ sunxi_keyboard_int_set(key_data->reg_base, mode, para);
|
|
+ mode = CONCERT_DLY_SET | ADC_CHAN_SET | KEY_MODE_SET
|
|
+ | LRADC_HOLD_SET | LEVELB_VOL_SET
|
|
+ | LRADC_SAMPLE_SET | LRADC_EN_SET;
|
|
+ para = FIRST_CONCERT_DLY|LEVELB_VOL|KEY_MODE_SELECT
|
|
+ |LRADC_HOLD_EN|ADC_CHAN_SELECT
|
|
+ |LRADC_SAMPLE_250HZ|LRADC_EN;
|
|
+ sunxi_keyboard_ctrl_set(key_data->reg_base, mode, para);
|
|
+#else
|
|
+#endif
|
|
+ if (request_irq(key_data->irq_num, sunxi_isr_key, 0,
|
|
+ "sunxikbd", key_data)) {
|
|
+ err = -EBUSY;
|
|
+ pr_err("request irq failure.\n");
|
|
+ goto fail2;
|
|
+ }
|
|
+ err = input_register_device(key_data->input_dev);
|
|
+ if (err)
|
|
+ goto fail3;
|
|
+
|
|
+ sunxi_keyboard_iio_init(pdev);
|
|
+
|
|
+ pr_debug("sunxikbd_init end\n");
|
|
+ return 0;
|
|
+
|
|
+fail3:
|
|
+ free_irq(key_data->irq_num, NULL);
|
|
+fail2:
|
|
+ input_free_device(key_data->input_dev);
|
|
+fail1:
|
|
+ kfree(key_data);
|
|
+ pr_err("sunxikbd_init failed.\n");
|
|
+
|
|
+ return err;
|
|
+}
|
|
+
|
|
+static int sunxi_keyboard_remove(struct platform_device *pdev)
|
|
+{
|
|
+ struct sunxi_key_data *key_data = platform_get_drvdata(pdev);
|
|
+
|
|
+ free_irq(key_data->irq_num, key_data);
|
|
+ input_unregister_device(key_data->input_dev);
|
|
+ device_init_wakeup(&pdev->dev, 0);
|
|
+ kfree(key_data);
|
|
+ return 0;
|
|
+}
|
|
+
|
|
+#ifdef CONFIG_PM
|
|
+static const struct dev_pm_ops sunxi_keyboard_pm_ops = {
|
|
+ .suspend = sunxi_keyboard_suspend,
|
|
+ .resume = sunxi_keyboard_resume,
|
|
+};
|
|
+
|
|
+#define SUNXI_KEYBOARD_PM_OPS (&sunxi_keyboard_pm_ops)
|
|
+#endif
|
|
+
|
|
+static struct platform_driver sunxi_keyboard_driver = {
|
|
+ .probe = sunxi_keyboard_probe,
|
|
+ .remove = sunxi_keyboard_remove,
|
|
+ .driver = {
|
|
+ .name = "sunxi-keyboard",
|
|
+ .owner = THIS_MODULE,
|
|
+#ifdef CONFIG_PM
|
|
+ .pm = SUNXI_KEYBOARD_PM_OPS,
|
|
+#endif
|
|
+ .of_match_table = of_match_ptr(sunxi_keyboard_of_match),
|
|
+ },
|
|
+};
|
|
+
|
|
+static int __init sunxi_keyboard_init(void)
|
|
+{
|
|
+ int ret;
|
|
+
|
|
+ ret = platform_driver_register(&sunxi_keyboard_driver);
|
|
+
|
|
+ return ret;
|
|
+}
|
|
+
|
|
+static void __exit sunxi_keyboard_exit(void)
|
|
+{
|
|
+ platform_driver_unregister(&sunxi_keyboard_driver);
|
|
+}
|
|
+
|
|
+subsys_initcall_sync(sunxi_keyboard_init);
|
|
+module_exit(sunxi_keyboard_exit);
|
|
+
|
|
+MODULE_AUTHOR(" Qin");
|
|
+MODULE_DESCRIPTION("sunxi-keyboard driver");
|
|
+MODULE_LICENSE("GPL");
|