diff options
Diffstat (limited to 'drivers/input')
40 files changed, 4122 insertions, 217 deletions
diff --git a/drivers/input/evdev.c b/drivers/input/evdev.c index 7a7a026..114efd8 100644 --- a/drivers/input/evdev.c +++ b/drivers/input/evdev.c @@ -25,7 +25,6 @@ struct evdev { int exist; int open; int minor; - char name[16]; struct input_handle handle; wait_queue_head_t wait; struct evdev_client *grab; @@ -609,7 +608,8 @@ static long evdev_do_ioctl(struct file *file, unsigned int cmd, p, compat_mode); if (_IOC_NR(cmd) == _IOC_NR(EVIOCGNAME(0))) - return str_to_user(dev->name, _IOC_SIZE(cmd), p); + return str_to_user(dev_name(&evdev->dev), + _IOC_SIZE(cmd), p); if (_IOC_NR(cmd) == _IOC_NR(EVIOCGPHYS(0))) return str_to_user(dev->phys, _IOC_SIZE(cmd), p); @@ -626,8 +626,11 @@ static long evdev_do_ioctl(struct file *file, unsigned int cmd, abs.maximum = dev->absmax[t]; abs.fuzz = dev->absfuzz[t]; abs.flat = dev->absflat[t]; + abs.resolution = dev->absres[t]; - if (copy_to_user(p, &abs, sizeof(struct input_absinfo))) + if (copy_to_user(p, &abs, min_t(size_t, + _IOC_SIZE(cmd), + sizeof(struct input_absinfo)))) return -EFAULT; return 0; @@ -654,8 +657,9 @@ static long evdev_do_ioctl(struct file *file, unsigned int cmd, t = _IOC_NR(cmd) & ABS_MAX; - if (copy_from_user(&abs, p, - sizeof(struct input_absinfo))) + if (copy_from_user(&abs, p, min_t(size_t, + _IOC_SIZE(cmd), + sizeof(struct input_absinfo)))) return -EFAULT; /* @@ -670,6 +674,8 @@ static long evdev_do_ioctl(struct file *file, unsigned int cmd, dev->absmax[t] = abs.maximum; dev->absfuzz[t] = abs.fuzz; dev->absflat[t] = abs.flat; + dev->absres[t] = _IOC_SIZE(cmd) < sizeof(struct input_absinfo) ? + 0 : abs.resolution; spin_unlock_irq(&dev->event_lock); @@ -807,16 +813,15 @@ static int evdev_connect(struct input_handler *handler, struct input_dev *dev, mutex_init(&evdev->mutex); init_waitqueue_head(&evdev->wait); - snprintf(evdev->name, sizeof(evdev->name), "event%d", minor); + dev_set_name(&evdev->dev, "event%d", minor); evdev->exist = 1; evdev->minor = minor; evdev->handle.dev = input_get_device(dev); - evdev->handle.name = evdev->name; + evdev->handle.name = dev_name(&evdev->dev); evdev->handle.handler = handler; evdev->handle.private = evdev; - dev_set_name(&evdev->dev, evdev->name); evdev->dev.devt = MKDEV(INPUT_MAJOR, EVDEV_MINOR_BASE + minor); evdev->dev.class = &input_class; evdev->dev.parent = &dev->dev; diff --git a/drivers/input/gameport/fm801-gp.c b/drivers/input/gameport/fm801-gp.c index 1dec00e..8a1810f 100644 --- a/drivers/input/gameport/fm801-gp.c +++ b/drivers/input/gameport/fm801-gp.c @@ -167,5 +167,6 @@ module_exit(fm801_gp_exit); MODULE_DEVICE_TABLE(pci, fm801_gp_id_table); +MODULE_DESCRIPTION("FM801 gameport driver"); MODULE_AUTHOR("Takashi Iwai <tiwai@suse.de>"); MODULE_LICENSE("GPL"); diff --git a/drivers/input/gameport/gameport.c b/drivers/input/gameport/gameport.c index 2d175b5..ac11be0 100644 --- a/drivers/input/gameport/gameport.c +++ b/drivers/input/gameport/gameport.c @@ -30,16 +30,6 @@ MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>"); MODULE_DESCRIPTION("Generic gameport layer"); MODULE_LICENSE("GPL"); -EXPORT_SYMBOL(__gameport_register_port); -EXPORT_SYMBOL(gameport_unregister_port); -EXPORT_SYMBOL(__gameport_register_driver); -EXPORT_SYMBOL(gameport_unregister_driver); -EXPORT_SYMBOL(gameport_open); -EXPORT_SYMBOL(gameport_close); -EXPORT_SYMBOL(gameport_set_phys); -EXPORT_SYMBOL(gameport_start_polling); -EXPORT_SYMBOL(gameport_stop_polling); - /* * gameport_mutex protects entire gameport subsystem and is taken * every time gameport port or driver registrered or unregistered. @@ -162,6 +152,7 @@ void gameport_start_polling(struct gameport *gameport) spin_unlock(&gameport->timer_lock); } +EXPORT_SYMBOL(gameport_start_polling); void gameport_stop_polling(struct gameport *gameport) { @@ -172,6 +163,7 @@ void gameport_stop_polling(struct gameport *gameport) spin_unlock(&gameport->timer_lock); } +EXPORT_SYMBOL(gameport_stop_polling); static void gameport_run_poll_handler(unsigned long d) { @@ -516,6 +508,7 @@ void gameport_set_phys(struct gameport *gameport, const char *fmt, ...) vsnprintf(gameport->phys, sizeof(gameport->phys), fmt, args); va_end(args); } +EXPORT_SYMBOL(gameport_set_phys); /* * Prepare gameport port for registration. @@ -658,6 +651,7 @@ void __gameport_register_port(struct gameport *gameport, struct module *owner) gameport_init_port(gameport); gameport_queue_event(gameport, owner, GAMEPORT_REGISTER_PORT); } +EXPORT_SYMBOL(__gameport_register_port); /* * Synchronously unregisters gameport port. @@ -669,6 +663,7 @@ void gameport_unregister_port(struct gameport *gameport) gameport_destroy_port(gameport); mutex_unlock(&gameport_mutex); } +EXPORT_SYMBOL(gameport_unregister_port); /* @@ -728,7 +723,7 @@ int __gameport_register_driver(struct gameport_driver *drv, struct module *owner * Temporarily disable automatic binding because probing * takes long time and we are better off doing it in kgameportd */ - drv->ignore = 1; + drv->ignore = true; error = driver_register(&drv->driver); if (error) { @@ -741,7 +736,7 @@ int __gameport_register_driver(struct gameport_driver *drv, struct module *owner /* * Reset ignore flag and let kgameportd bind the driver to free ports */ - drv->ignore = 0; + drv->ignore = false; error = gameport_queue_event(drv, NULL, GAMEPORT_ATTACH_DRIVER); if (error) { driver_unregister(&drv->driver); @@ -750,6 +745,7 @@ int __gameport_register_driver(struct gameport_driver *drv, struct module *owner return 0; } +EXPORT_SYMBOL(__gameport_register_driver); void gameport_unregister_driver(struct gameport_driver *drv) { @@ -757,7 +753,7 @@ void gameport_unregister_driver(struct gameport_driver *drv) mutex_lock(&gameport_mutex); - drv->ignore = 1; /* so gameport_find_driver ignores it */ + drv->ignore = true; /* so gameport_find_driver ignores it */ gameport_remove_pending_events(drv); start_over: @@ -774,6 +770,7 @@ start_over: mutex_unlock(&gameport_mutex); } +EXPORT_SYMBOL(gameport_unregister_driver); static int gameport_bus_match(struct device *dev, struct device_driver *drv) { @@ -812,6 +809,7 @@ int gameport_open(struct gameport *gameport, struct gameport_driver *drv, int mo gameport_set_drv(gameport, drv); return 0; } +EXPORT_SYMBOL(gameport_open); void gameport_close(struct gameport *gameport) { @@ -822,6 +820,7 @@ void gameport_close(struct gameport *gameport) if (gameport->close) gameport->close(gameport); } +EXPORT_SYMBOL(gameport_close); static int __init gameport_init(void) { diff --git a/drivers/input/joydev.c b/drivers/input/joydev.c index 012a5e7..0e12f89 100644 --- a/drivers/input/joydev.c +++ b/drivers/input/joydev.c @@ -39,7 +39,6 @@ struct joydev { int exist; int open; int minor; - char name[16]; struct input_handle handle; wait_queue_head_t wait; struct list_head client_list; @@ -537,12 +536,14 @@ static int joydev_ioctl_common(struct joydev *joydev, default: if ((cmd & ~IOCSIZE_MASK) == JSIOCGNAME(0)) { int len; - if (!dev->name) + const char *name = dev_name(&dev->dev); + + if (!name) return 0; - len = strlen(dev->name) + 1; + len = strlen(name) + 1; if (len > _IOC_SIZE(cmd)) len = _IOC_SIZE(cmd); - if (copy_to_user(argp, dev->name, len)) + if (copy_to_user(argp, name, len)) return -EFAULT; return len; } @@ -742,13 +743,13 @@ static int joydev_connect(struct input_handler *handler, struct input_dev *dev, mutex_init(&joydev->mutex); init_waitqueue_head(&joydev->wait); - snprintf(joydev->name, sizeof(joydev->name), "js%d", minor); + dev_set_name(&joydev->dev, "js%d", minor); joydev->exist = 1; joydev->minor = minor; joydev->exist = 1; joydev->handle.dev = input_get_device(dev); - joydev->handle.name = joydev->name; + joydev->handle.name = dev_name(&joydev->dev); joydev->handle.handler = handler; joydev->handle.private = joydev; @@ -797,7 +798,6 @@ static int joydev_connect(struct input_handler *handler, struct input_dev *dev, } } - dev_set_name(&joydev->dev, joydev->name); joydev->dev.devt = MKDEV(INPUT_MAJOR, JOYDEV_MINOR_BASE + minor); joydev->dev.class = &input_class; joydev->dev.parent = &dev->dev; diff --git a/drivers/input/keyboard/Kconfig b/drivers/input/keyboard/Kconfig index ea2638b..9d8f796 100644 --- a/drivers/input/keyboard/Kconfig +++ b/drivers/input/keyboard/Kconfig @@ -250,6 +250,17 @@ config KEYBOARD_HP7XX To compile this driver as a module, choose M here: the module will be called jornada720_kbd. +config KEYBOARD_LM8323 + tristate "LM8323 keypad chip" + depends on I2C + depends on LEDS_CLASS + help + If you say yes here you get support for the National Semiconductor + LM8323 keypad controller. + + To compile this driver as a module, choose M here: the + module will be called lm8323. + config KEYBOARD_OMAP tristate "TI OMAP keypad support" depends on (ARCH_OMAP1 || ARCH_OMAP2) @@ -332,4 +343,14 @@ config KEYBOARD_SH_KEYSC To compile this driver as a module, choose M here: the module will be called sh_keysc. + +config KEYBOARD_EP93XX + tristate "EP93xx Matrix Keypad support" + depends on ARCH_EP93XX + help + Say Y here to enable the matrix keypad on the Cirrus EP93XX. + + To compile this driver as a module, choose M here: the + module will be called ep93xx_keypad. + endif diff --git a/drivers/input/keyboard/Makefile b/drivers/input/keyboard/Makefile index 36351e1..156b647 100644 --- a/drivers/input/keyboard/Makefile +++ b/drivers/input/keyboard/Makefile @@ -18,6 +18,7 @@ obj-$(CONFIG_KEYBOARD_SPITZ) += spitzkbd.o obj-$(CONFIG_KEYBOARD_TOSA) += tosakbd.o obj-$(CONFIG_KEYBOARD_HIL) += hil_kbd.o obj-$(CONFIG_KEYBOARD_HIL_OLD) += hilkbd.o +obj-$(CONFIG_KEYBOARD_LM8323) += lm8323.o obj-$(CONFIG_KEYBOARD_OMAP) += omap-keypad.o obj-$(CONFIG_KEYBOARD_PXA27x) += pxa27x_keypad.o obj-$(CONFIG_KEYBOARD_PXA930_ROTARY) += pxa930_rotary.o @@ -28,3 +29,4 @@ obj-$(CONFIG_KEYBOARD_HP7XX) += jornada720_kbd.o obj-$(CONFIG_KEYBOARD_MAPLE) += maple_keyb.o obj-$(CONFIG_KEYBOARD_BFIN) += bf54x-keys.o obj-$(CONFIG_KEYBOARD_SH_KEYSC) += sh_keysc.o +obj-$(CONFIG_KEYBOARD_EP93XX) += ep93xx_keypad.o diff --git a/drivers/input/keyboard/ep93xx_keypad.c b/drivers/input/keyboard/ep93xx_keypad.c new file mode 100644 index 0000000..181d30e --- /dev/null +++ b/drivers/input/keyboard/ep93xx_keypad.c @@ -0,0 +1,470 @@ +/* + * Driver for the Cirrus EP93xx matrix keypad controller. + * + * Copyright (c) 2008 H Hartley Sweeten <hsweeten@visionengravers.com> + * + * Based on the pxa27x matrix keypad controller by Rodolfo Giometti. + * + * 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. + * + * NOTE: + * + * The 3-key reset is triggered by pressing the 3 keys in + * Row 0, Columns 2, 4, and 7 at the same time. This action can + * be disabled by setting the EP93XX_KEYPAD_DISABLE_3_KEY flag. + * + * Normal operation for the matrix does not autorepeat the key press. + * This action can be enabled by setting the EP93XX_KEYPAD_AUTOREPEAT + * flag. + */ + +#include <linux/platform_device.h> +#include <linux/interrupt.h> +#include <linux/input.h> +#include <linux/clk.h> + +#include <mach/hardware.h> +#include <mach/gpio.h> +#include <mach/ep93xx_keypad.h> + +/* + * Keypad Interface Register offsets + */ +#define KEY_INIT 0x00 /* Key Scan Initialization register */ +#define KEY_DIAG 0x04 /* Key Scan Diagnostic register */ +#define KEY_REG 0x08 /* Key Value Capture register */ + +/* Key Scan Initialization Register bit defines */ +#define KEY_INIT_DBNC_MASK (0x00ff0000) +#define KEY_INIT_DBNC_SHIFT (16) +#define KEY_INIT_DIS3KY (1<<15) +#define KEY_INIT_DIAG (1<<14) +#define KEY_INIT_BACK (1<<13) +#define KEY_INIT_T2 (1<<12) +#define KEY_INIT_PRSCL_MASK (0x000003ff) +#define KEY_INIT_PRSCL_SHIFT (0) + +/* Key Scan Diagnostic Register bit defines */ +#define KEY_DIAG_MASK (0x0000003f) +#define KEY_DIAG_SHIFT (0) + +/* Key Value Capture Register bit defines */ +#define KEY_REG_K (1<<15) +#define KEY_REG_INT (1<<14) +#define KEY_REG_2KEYS (1<<13) +#define KEY_REG_1KEY (1<<12) +#define KEY_REG_KEY2_MASK (0x00000fc0) +#define KEY_REG_KEY2_SHIFT (6) +#define KEY_REG_KEY1_MASK (0x0000003f) +#define KEY_REG_KEY1_SHIFT (0) + +#define keypad_readl(off) __raw_readl(keypad->mmio_base + (off)) +#define keypad_writel(v, off) __raw_writel((v), keypad->mmio_base + (off)) + +#define MAX_MATRIX_KEY_NUM (MAX_MATRIX_KEY_ROWS * MAX_MATRIX_KEY_COLS) + +struct ep93xx_keypad { + struct ep93xx_keypad_platform_data *pdata; + + struct clk *clk; + struct input_dev *input_dev; + void __iomem *mmio_base; + + int irq; + int enabled; + + int key1; + int key2; + + unsigned int matrix_keycodes[MAX_MATRIX_KEY_NUM]; +}; + +static void ep93xx_keypad_build_keycode(struct ep93xx_keypad *keypad) +{ + struct ep93xx_keypad_platform_data *pdata = keypad->pdata; + struct input_dev *input_dev = keypad->input_dev; + int i; + + for (i = 0; i < pdata->matrix_key_map_size; i++) { + unsigned int key = pdata->matrix_key_map[i]; + int row = (key >> 28) & 0xf; + int col = (key >> 24) & 0xf; + int code = key & 0xffffff; + + keypad->matrix_keycodes[(row << 3) + col] = code; + __set_bit(code, input_dev->keybit); + } +} + +static irqreturn_t ep93xx_keypad_irq_handler(int irq, void *dev_id) +{ + struct ep93xx_keypad *keypad = dev_id; + struct input_dev *input_dev = keypad->input_dev; + unsigned int status = keypad_readl(KEY_REG); + int keycode, key1, key2; + + keycode = (status & KEY_REG_KEY1_MASK) >> KEY_REG_KEY1_SHIFT; + key1 = keypad->matrix_keycodes[keycode]; + + keycode = (status & KEY_REG_KEY2_MASK) >> KEY_REG_KEY2_SHIFT; + key2 = keypad->matrix_keycodes[keycode]; + + if (status & KEY_REG_2KEYS) { + if (keypad->key1 && key1 != keypad->key1 && key2 != keypad->key1) + input_report_key(input_dev, keypad->key1, 0); + + if (keypad->key2 && key1 != keypad->key2 && key2 != keypad->key2) + input_report_key(input_dev, keypad->key2, 0); + + input_report_key(input_dev, key1, 1); + input_report_key(input_dev, key2, 1); + + keypad->key1 = key1; + keypad->key2 = key2; + + } else if (status & KEY_REG_1KEY) { + if (keypad->key1 && key1 != keypad->key1) + input_report_key(input_dev, keypad->key1, 0); + + if (keypad->key2 && key1 != keypad->key2) + input_report_key(input_dev, keypad->key2, 0); + + input_report_key(input_dev, key1, 1); + + keypad->key1 = key1; + keypad->key2 = 0; + + } else { + input_report_key(input_dev, keypad->key1, 0); + input_report_key(input_dev, keypad->key2, 0); + + keypad->key1 = keypad->key2 = 0; + } + input_sync(input_dev); + + return IRQ_HANDLED; +} + +static void ep93xx_keypad_config(struct ep93xx_keypad *keypad) +{ + struct ep93xx_keypad_platform_data *pdata = keypad->pdata; + unsigned int val = 0; + + clk_set_rate(keypad->clk, pdata->flags & EP93XX_KEYPAD_KDIV); + + if (pdata->flags & EP93XX_KEYPAD_DISABLE_3_KEY) + val |= KEY_INIT_DIS3KY; + if (pdata->flags & EP93XX_KEYPAD_DIAG_MODE) + val |= KEY_INIT_DIAG; + if (pdata->flags & EP93XX_KEYPAD_BACK_DRIVE) + val |= KEY_INIT_BACK; + if (pdata->flags & EP93XX_KEYPAD_TEST_MODE) + val |= KEY_INIT_T2; + + val |= ((pdata->debounce << KEY_INIT_DBNC_SHIFT) & KEY_INIT_DBNC_MASK); + + val |= ((pdata->prescale << KEY_INIT_PRSCL_SHIFT) & KEY_INIT_PRSCL_MASK); + + keypad_writel(val, KEY_INIT); +} + +static int ep93xx_keypad_open(struct input_dev *pdev) +{ + struct ep93xx_keypad *keypad = input_get_drvdata(pdev); + + if (!keypad->enabled) { + ep93xx_keypad_config(keypad); + clk_enable(keypad->clk); + keypad->enabled = 1; + } + + return 0; +} + +static void ep93xx_keypad_close(struct input_dev *pdev) +{ + struct ep93xx_keypad *keypad = input_get_drvdata(pdev); + + if (keypad->enabled) { + clk_disable(keypad->clk); + keypad->enabled = 0; + } +} + + +#ifdef CONFIG_PM +/* + * NOTE: I don't know if this is correct, or will work on the ep93xx. + * + * None of the existing ep93xx drivers have power management support. + * But, this is basically what the pxa27x_keypad driver does. + */ +static int ep93xx_keypad_suspend(struct platform_device *pdev, + pm_message_t state) +{ + struct ep93xx_keypad *keypad = platform_get_drvdata(pdev); + struct input_dev *input_dev = keypad->input_dev; + + mutex_lock(&input_dev->mutex); + + if (keypad->enabled) { + clk_disable(keypad->clk); + keypad->enabled = 0; + } + + mutex_unlock(&input_dev->mutex); + + if (device_may_wakeup(&pdev->dev)) + enable_irq_wake(keypad->irq); + + return 0; +} + +static int ep93xx_keypad_resume(struct platform_device *pdev) +{ + struct ep93xx_keypad *keypad = platform_get_drvdata(pdev); + struct input_dev *input_dev = keypad->input_dev; + + if (device_may_wakeup(&pdev->dev)) + disable_irq_wake(keypad->irq); + + mutex_lock(&input_dev->mutex); + + if (input_dev->users) { + if (!keypad->enabled) { + ep93xx_keypad_config(keypad); + clk_enable(keypad->clk); + keypad->enabled = 1; + } + } + + mutex_unlock(&input_dev->mutex); + + return 0; +} +#else /* !CONFIG_PM */ +#define ep93xx_keypad_suspend NULL +#define ep93xx_keypad_resume NULL +#endif /* !CONFIG_PM */ + +static int __devinit ep93xx_keypad_probe(struct platform_device *pdev) +{ + struct ep93xx_keypad *keypad; + struct ep93xx_keypad_platform_data *pdata = pdev->dev.platform_data; + struct input_dev *input_dev; + struct resource *res; + int irq, err, i, gpio; + + if (!pdata || + !pdata->matrix_key_rows || + pdata->matrix_key_rows > MAX_MATRIX_KEY_ROWS || + !pdata->matrix_key_cols || + pdata->matrix_key_cols > MAX_MATRIX_KEY_COLS) { + dev_err(&pdev->dev, "invalid or missing platform data\n"); + return -EINVAL; + } + + keypad = kzalloc(sizeof(struct ep93xx_keypad), GFP_KERNEL); + if (!keypad) { + dev_err(&pdev->dev, "failed to allocate driver data\n"); + return -ENOMEM; + } + + keypad->pdata = pdata; + + irq = platform_get_irq(pdev, 0); + if (irq < 0) { + dev_err(&pdev->dev, "failed to get keypad irq\n"); + err = -ENXIO; + goto failed_free; + } + + res = platform_get_resource(pdev, IORESOURCE_MEM, 0); + if (!res) { + dev_err(&pdev->dev, "failed to get I/O memory\n"); + err = -ENXIO; + goto failed_free; + } + + res = request_mem_region(res->start, resource_size(res), pdev->name); + if (!res) { + dev_err(&pdev->dev, "failed to request I/O memory\n"); + err = -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"); + err = -ENXIO; + goto failed_free_mem; + } + + /* Request the needed GPIO's */ + gpio = EP93XX_GPIO_LINE_ROW0; + for (i = 0; i < keypad->pdata->matrix_key_rows; i++, gpio++) { + err = gpio_request(gpio, pdev->name); + if (err) { + dev_err(&pdev->dev, "failed to request gpio-%d\n", + gpio); + goto failed_free_rows; + } + } + + gpio = EP93XX_GPIO_LINE_COL0; + for (i = 0; i < keypad->pdata->matrix_key_cols; i++, gpio++) { + err = gpio_request(gpio, pdev->name); + if (err) { + dev_err(&pdev->dev, "failed to request gpio-%d\n", + gpio); + goto failed_free_cols; + } + } + + keypad->clk = clk_get(&pdev->dev, "key_clk"); + if (IS_ERR(keypad->clk)) { + dev_err(&pdev->dev, "failed to get keypad clock\n"); + err = PTR_ERR(keypad->clk); + goto failed_free_io; + } + + /* Create and register the input driver */ + input_dev = input_allocate_device(); + if (!input_dev) { + dev_err(&pdev->dev, "failed to allocate input device\n"); + err = -ENOMEM; + goto failed_put_clk; + } + + keypad->input_dev = input_dev; + + input_dev->name = pdev->name; + input_dev->id.bustype = BUS_HOST; + input_dev->open = ep93xx_keypad_open; + input_dev->close = ep93xx_keypad_close; + input_dev->dev.parent = &pdev->dev; + input_dev->keycode = keypad->matrix_keycodes; + input_dev->keycodesize = sizeof(keypad->matrix_keycodes[0]); + input_dev->keycodemax = ARRAY_SIZE(keypad->matrix_keycodes); + + input_set_drvdata(input_dev, keypad); + + input_dev->evbit[0] = BIT_MASK(EV_KEY); + if (keypad->pdata->flags & EP93XX_KEYPAD_AUTOREPEAT) + input_dev->evbit[0] |= BIT_MASK(EV_REP); + + ep93xx_keypad_build_keycode(keypad); + platform_set_drvdata(pdev, keypad); + + err = request_irq(irq, ep93xx_keypad_irq_handler, IRQF_DISABLED, + pdev->name, keypad); + if (err) { + dev_err(&pdev->dev, "failed to request IRQ\n"); + goto failed_free_dev; + } + + keypad->irq = irq; + + /* Register the input device */ + err = input_register_device(input_dev); + if (err) { + dev_err(&pdev->dev, "failed to register input device\n"); + goto failed_free_irq; + } + + device_init_wakeup(&pdev->dev, 1); + + return 0; + +failed_free_irq: + free_irq(irq, pdev); + platform_set_drvdata(pdev, NULL); +failed_free_dev: + input_free_device(input_dev); +failed_put_clk: + clk_put(keypad->clk); +failed_free_io: + i = keypad->pdata->matrix_key_cols - 1; + gpio = EP93XX_GPIO_LINE_COL0 + i; +failed_free_cols: + for ( ; i >= 0; i--, gpio--) + gpio_free(gpio); + i = keypad->pdata->matrix_key_rows - 1; + gpio = EP93XX_GPIO_LINE_ROW0 + i; +failed_free_rows: + for ( ; i >= 0; i--, gpio--) + gpio_free(gpio); + iounmap(keypad->mmio_base); +failed_free_mem: + release_mem_region(res->start, resource_size(res)); +failed_free: + kfree(keypad); + return err; +} + +static int __devexit ep93xx_keypad_remove(struct platform_device *pdev) +{ + struct ep93xx_keypad *keypad = platform_get_drvdata(pdev); + struct resource *res; + int i, gpio; + + free_irq(keypad->irq, pdev); + + platform_set_drvdata(pdev, NULL); + + if (keypad->enabled) + clk_disable(keypad->clk); + clk_put(keypad->clk); + + input_unregister_device(keypad->input_dev); + + i = keypad->pdata->matrix_key_cols - 1; + gpio = EP93XX_GPIO_LINE_COL0 + i; + for ( ; i >= 0; i--, gpio--) + gpio_free(gpio); + + i = keypad->pdata->matrix_key_rows - 1; + gpio = EP93XX_GPIO_LINE_ROW0 + i; + for ( ; i >= 0; i--, gpio--) + gpio_free(gpio); + + 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 ep93xx_keypad_driver = { + .driver = { + .name = "ep93xx-keypad", + .owner = THIS_MODULE, + }, + .probe = ep93xx_keypad_probe, + .remove = __devexit_p(ep93xx_keypad_remove), + .suspend = ep93xx_keypad_suspend, + .resume = ep93xx_keypad_resume, +}; + +static int __init ep93xx_keypad_init(void) +{ + return platform_driver_register(&ep93xx_keypad_driver); +} + +static void __exit ep93xx_keypad_exit(void) +{ + platform_driver_unregister(&ep93xx_keypad_driver); +} + +module_init(ep93xx_keypad_init); +module_exit(ep93xx_keypad_exit); + +MODULE_LICENSE("GPL"); +MODULE_AUTHOR("H Hartley Sweeten <hsweeten@visionengravers.com>"); +MODULE_DESCRIPTION("EP93xx Matrix Keypad Controller"); +MODULE_ALIAS("platform:ep93xx-keypad"); diff --git a/drivers/input/keyboard/gpio_keys.c b/drivers/input/keyboard/gpio_keys.c index ad67d76..2157cd7 100644 --- a/drivers/input/keyboard/gpio_keys.c +++ b/drivers/input/keyboard/gpio_keys.c @@ -22,13 +22,14 @@ #include <linux/platform_device.h> #include <linux/input.h> #include <linux/gpio_keys.h> +#include <linux/workqueue.h> #include <asm/gpio.h> struct gpio_button_data { struct gpio_keys_button *button; struct input_dev *input; - struct timer_list timer; + struct delayed_work work; }; struct gpio_keys_drvdata { @@ -36,8 +37,10 @@ struct gpio_keys_drvdata { struct gpio_button_data data[0]; }; -static void gpio_keys_report_event(struct gpio_button_data *bdata) +static void gpio_keys_report_event(struct work_struct *work) { + struct gpio_button_data *bdata = + container_of(work, struct gpio_button_data, work.work); struct gpio_keys_button *button = bdata->button; struct input_dev *input = bdata->input; unsigned int type = button->type ?: EV_KEY; @@ -47,25 +50,17 @@ static void gpio_keys_report_event(struct gpio_button_data *bdata) input_sync(input); } -static void gpio_check_button(unsigned long _data) -{ - struct gpio_button_data *data = (struct gpio_button_data *)_data; - - gpio_keys_report_event(data); -} - static irqreturn_t gpio_keys_isr(int irq, void *dev_id) { struct gpio_button_data *bdata = dev_id; struct gpio_keys_button *button = bdata->button; + unsigned long delay; BUG_ON(irq != gpio_to_irq(button->gpio)); - if (button->debounce_interval) - mod_timer(&bdata->timer, - jiffies + msecs_to_jiffies(button->debounce_interval)); - else - gpio_keys_report_event(bdata); + delay = button->debounce_interval ? + msecs_to_jiffies(button->debounce_interval) : 0; + schedule_delayed_work(&bdata->work, delay); return IRQ_HANDLED; } @@ -112,8 +107,7 @@ static int __devinit gpio_keys_probe(struct platform_device *pdev) bdata->input = input; bdata->button = button; - setup_timer(&bdata->timer, - gpio_check_button, (unsigned long)bdata); + INIT_DELAYED_WORK(&bdata->work, gpio_keys_report_event); error = gpio_request(button->gpio, button->desc ?: "gpio_keys"); if (error < 0) { @@ -142,8 +136,7 @@ static int __devinit gpio_keys_probe(struct platform_device *pdev) } error = request_irq(irq, gpio_keys_isr, - IRQF_SAMPLE_RANDOM | IRQF_TRIGGER_RISING | - IRQF_TRIGGER_FALLING, + IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING, button->desc ? button->desc : "gpio_keys", bdata); if (error) { @@ -173,8 +166,7 @@ static int __devinit gpio_keys_probe(struct platform_device *pdev) fail2: while (--i >= 0) { free_irq(gpio_to_irq(pdata->buttons[i].gpio), &ddata->data[i]); - if (pdata->buttons[i].debounce_interval) - del_timer_sync(&ddata->data[i].timer); + cancel_delayed_work_sync(&ddata->data[i].work); gpio_free(pdata->buttons[i].gpio); } @@ -198,8 +190,7 @@ static int __devexit gpio_keys_remove(struct platform_device *pdev) for (i = 0; i < pdata->nbuttons; i++) { int irq = gpio_to_irq(pdata->buttons[i].gpio); free_irq(irq, &ddata->data[i]); - if (pdata->buttons[i].debounce_interval) - del_timer_sync(&ddata->data[i].timer); + cancel_delayed_work_sync(&ddata->data[i].work); gpio_free(pdata->buttons[i].gpio); } diff --git a/drivers/input/keyboard/lm8323.c b/drivers/input/keyboard/lm8323.c new file mode 100644 index 0000000..574eda2 --- /dev/null +++ b/drivers/input/keyboard/lm8323.c @@ -0,0 +1,878 @@ +/* + * drivers/i2c/chips/lm8323.c + * + * Copyright (C) 2007-2009 Nokia Corporation + * + * Written by Daniel Stone <daniel.stone@nokia.com> + * Timo O. Karjalainen <timo.o.karjalainen@nokia.com> + * + * Updated by Felipe Balbi <felipe.balbi@nokia.com> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation (version 2 of the License only). + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + +#include <linux/module.h> +#include <linux/i2c.h> +#include <linux/interrupt.h> +#include <linux/sched.h> +#include <linux/mutex.h> +#include <linux/delay.h> +#include <linux/input.h> +#include <linux/leds.h> +#include <linux/i2c/lm8323.h> + +/* Commands to send to the chip. */ +#define LM8323_CMD_READ_ID 0x80 /* Read chip ID. */ +#define LM8323_CMD_WRITE_CFG 0x81 /* Set configuration item. */ +#define LM8323_CMD_READ_INT 0x82 /* Get interrupt status. */ +#define LM8323_CMD_RESET 0x83 /* Reset, same as external one */ +#define LM8323_CMD_WRITE_PORT_SEL 0x85 /* Set GPIO in/out. */ +#define LM8323_CMD_WRITE_PORT_STATE 0x86 /* Set GPIO pullup. */ +#define LM8323_CMD_READ_PORT_SEL 0x87 /* Get GPIO in/out. */ +#define LM8323_CMD_READ_PORT_STATE 0x88 /* Get GPIO pullup. */ +#define LM8323_CMD_READ_FIFO 0x89 /* Read byte from FIFO. */ +#define LM8323_CMD_RPT_READ_FIFO 0x8a /* Read FIFO (no increment). */ +#define LM8323_CMD_SET_ACTIVE 0x8b /* Set active time. */ +#define LM8323_CMD_READ_ERR 0x8c /* Get error status. */ +#define LM8323_CMD_READ_ROTATOR 0x8e /* Read rotator status. */ +#define LM8323_CMD_SET_DEBOUNCE 0x8f /* Set debouncing time. */ +#define LM8323_CMD_SET_KEY_SIZE 0x90 /* Set keypad size. */ +#define LM8323_CMD_READ_KEY_SIZE 0x91 /* Get keypad size. */ +#define LM8323_CMD_READ_CFG 0x92 /* Get configuration item. */ +#define LM8323_CMD_WRITE_CLOCK 0x93 /* Set clock config. */ +#define LM8323_CMD_READ_CLOCK 0x94 /* Get clock config. */ +#define LM8323_CMD_PWM_WRITE 0x95 /* Write PWM script. */ +#define LM8323_CMD_START_PWM 0x96 /* Start PWM engine. */ +#define LM8323_CMD_STOP_PWM 0x97 /* Stop PWM engine. */ + +/* Interrupt status. */ +#define INT_KEYPAD 0x01 /* Key event. */ +#define INT_ROTATOR 0x02 /* Rotator event. */ +#define INT_ERROR 0x08 /* Error: use CMD_READ_ERR. */ +#define INT_NOINIT 0x10 /* Lost configuration. */ +#define INT_PWM1 0x20 /* PWM1 stopped. */ +#define INT_PWM2 0x40 /* PWM2 stopped. */ +#define INT_PWM3 0x80 /* PWM3 stopped. */ + +/* Errors (signalled by INT_ERROR, read with CMD_READ_ERR). */ +#define ERR_BADPAR 0x01 /* Bad parameter. */ +#define ERR_CMDUNK 0x02 /* Unknown command. */ +#define ERR_KEYOVR 0x04 /* Too many keys pressed. */ +#define ERR_FIFOOVER 0x40 /* FIFO overflow. */ + +/* Configuration keys (CMD_{WRITE,READ}_CFG). */ +#define CFG_MUX1SEL 0x01 /* Select MUX1_OUT input. */ +#define CFG_MUX1EN 0x02 /* Enable MUX1_OUT. */ +#define CFG_MUX2SEL 0x04 /* Select MUX2_OUT input. */ +#define CFG_MUX2EN 0x08 /* Enable MUX2_OUT. */ +#define CFG_PSIZE 0x20 /* Package size (must be 0). */ +#define CFG_ROTEN 0x40 /* Enable rotator. */ + +/* Clock settings (CMD_{WRITE,READ}_CLOCK). */ +#define CLK_RCPWM_INTERNAL 0x00 +#define CLK_RCPWM_EXTERNAL 0x03 +#define CLK_SLOWCLKEN 0x08 /* Enable 32.768kHz clock. */ +#define CLK_SLOWCLKOUT 0x40 /* Enable slow pulse output. */ + +/* The possible addresses corresponding to CONFIG1 and CONFIG2 pin wirings. */ +#define LM8323_I2C_ADDR00 (0x84 >> 1) /* 1000 010x */ +#define LM8323_I2C_ADDR01 (0x86 >> 1) /* 1000 011x */ +#define LM8323_I2C_ADDR10 (0x88 >> 1) /* 1000 100x */ +#define LM8323_I2C_ADDR11 (0x8A >> 1) /* 1000 101x */ + +/* Key event fifo length */ +#define LM8323_FIFO_LEN 15 + +/* Commands for PWM engine; feed in with PWM_WRITE. */ +/* Load ramp counter from duty cycle field (range 0 - 0xff). */ +#define PWM_SET(v) (0x4000 | ((v) & 0xff)) +/* Go to start of script. */ +#define PWM_GOTOSTART 0x0000 +/* + * Stop engine (generates interrupt). If reset is 1, clear the program + * counter, else leave it. + */ +#define PWM_END(reset) (0xc000 | (!!(reset) << 11)) +/* + * Ramp. If s is 1, divide clock by 512, else divide clock by 16. + * Take t clock scales (up to 63) per step, for n steps (up to 126). + * If u is set, ramp up, else ramp down. + */ +#define PWM_RAMP(s, t, n, u) ((!!(s) << 14) | ((t) & 0x3f) << 8 | \ + ((n) & 0x7f) | ((u) ? 0 : 0x80)) +/* + * Loop (i.e. jump back to pos) for a given number of iterations (up to 63). + * If cnt is zero, execute until PWM_END is encountered. + */ +#define PWM_LOOP(cnt, pos) (0xa000 | (((cnt) & 0x3f) << 7) | \ + ((pos) & 0x3f)) +/* + * Wait for trigger. Argument is a mask of channels, shifted by the channel + * number, e.g. 0xa for channels 3 and 1. Note that channels are numbered + * from 1, not 0. + */ +#define PWM_WAIT_TRIG(chans) (0xe000 | (((chans) & 0x7) << 6)) +/* Send trigger. Argument is same as PWM_WAIT_TRIG. */ +#define PWM_SEND_TRIG(chans) (0xe000 | ((chans) & 0x7)) + +struct lm8323_pwm { + int id; + int fade_time; + int brightness; + int desired_brightness; + bool enabled; + bool running; + /* pwm lock */ + struct mutex lock; + struct work_struct work; + struct led_classdev cdev; + struct lm8323_chip *chip; +}; + +struct lm8323_chip { + /* device lock */ + struct mutex lock; + struct i2c_client *client; + struct work_struct work; + struct input_dev *idev; + bool kp_enabled; + bool pm_suspend; + unsigned keys_down; + char phys[32]; + unsigned short keymap[LM8323_KEYMAP_SIZE]; + int size_x; + int size_y; + int debounce_time; + int active_time; + struct lm8323_pwm pwm[LM8323_NUM_PWMS]; +}; + +#define client_to_lm8323(c) container_of(c, struct lm8323_chip, client) +#define dev_to_lm8323(d) container_of(d, struct lm8323_chip, client->dev) +#define work_to_lm8323(w) container_of(w, struct lm8323_chip, work) +#define cdev_to_pwm(c) container_of(c, struct lm8323_pwm, cdev) +#define work_to_pwm(w) container_of(w, struct lm8323_pwm, work) + +#define LM8323_MAX_DATA 8 + +/* + * To write, we just access the chip's address in write mode, and dump the + * command and data out on the bus. The command byte and data are taken as + * sequential u8s out of varargs, to a maximum of LM8323_MAX_DATA. + */ +static int lm8323_write(struct lm8323_chip *lm, int len, ...) +{ + int ret, i; + va_list ap; + u8 data[LM8323_MAX_DATA]; + + va_start(ap, len); + + if (unlikely(len > LM8323_MAX_DATA)) { + dev_err(&lm->client->dev, "tried to send %d bytes\n", len); + va_end(ap); + return 0; + } + + for (i = 0; i < len; i++) + data[i] = va_arg(ap, int); + + va_end(ap); + + /* + * If the host is asleep while we send the data, we can get a NACK + * back while it wakes up, so try again, once. + */ + ret = i2c_master_send(lm->client, data, len); + if (unlikely(ret == -EREMOTEIO)) + ret = i2c_master_send(lm->client, data, len); + if (unlikely(ret != len)) + dev_err(&lm->client->dev, "sent %d bytes of %d total\n", + len, ret); + + return ret; +} + +/* + * To read, we first send the command byte to the chip and end the transaction, + * then access the chip in read mode, at which point it will send the data. + */ +static int lm8323_read(struct lm8323_chip *lm, u8 cmd, u8 *buf, int len) +{ + int ret; + + /* + * If the host is asleep while we send the byte, we can get a NACK + * back while it wakes up, so try again, once. + */ + ret = i2c_master_send(lm->client, &cmd, 1); + if (unlikely(ret == -EREMOTEIO)) + ret = i2c_master_send(lm->client, &cmd, 1); + if (unlikely(ret != 1)) { + dev_err(&lm->client->dev, "sending read cmd 0x%02x failed\n", + cmd); + return 0; + } + + ret = i2c_master_recv(lm->client, buf, len); + if (unlikely(ret != len)) + dev_err(&lm->client->dev, "wanted %d bytes, got %d\n", + len, ret); + + return ret; +} + +/* + * Set the chip active time (idle time before it enters halt). + */ +static void lm8323_set_active_time(struct lm8323_chip *lm, int time) +{ + lm8323_write(lm, 2, LM8323_CMD_SET_ACTIVE, time >> 2); +} + +/* + * The signals are AT-style: the low 7 bits are the keycode, and the top + * bit indicates the state (1 for down, 0 for up). + */ +static inline u8 lm8323_whichkey(u8 event) +{ + return event & 0x7f; +} + +static inline int lm8323_ispress(u8 event) +{ + return (event & 0x80) ? 1 : 0; +} + +static void process_keys(struct lm8323_chip *lm) +{ + u8 event; + u8 key_fifo[LM8323_FIFO_LEN + 1]; + int old_keys_down = lm->keys_down; + int ret; + int i = 0; + + /* + * Read all key events from the FIFO at once. Next READ_FIFO clears the + * FIFO even if we didn't read all events previously. + */ + ret = lm8323_read(lm, LM8323_CMD_READ_FIFO, key_fifo, LM8323_FIFO_LEN); + + if (ret < 0) { + dev_err(&lm->client->dev, "Failed reading fifo \n"); + return; + } + key_fifo[ret] = 0; + + while ((event = key_fifo[i++])) { + u8 key = lm8323_whichkey(event); + int isdown = lm8323_ispress(event); + unsigned short keycode = lm->keymap[key]; + + dev_vdbg(&lm->client->dev, "key 0x%02x %s\n", + key, isdown ? "down" : "up"); + + if (lm->kp_enabled) { + input_event(lm->idev, EV_MSC, MSC_SCAN, key); + input_report_key(lm->idev, keycode, isdown); + input_sync(lm->idev); + } + + if (isdown) + lm->keys_down++; + else + lm->keys_down--; + } + + /* + * Errata: We need to ensure that the chip never enters halt mode + * during a keypress, so set active time to 0. When it's released, + * we can enter halt again, so set the active time back to normal. + */ + if (!old_keys_down && lm->keys_down) + lm8323_set_active_time(lm, 0); + if (old_keys_down && !lm->keys_down) + lm8323_set_active_time(lm, lm->active_time); +} + +static void lm8323_process_error(struct lm8323_chip *lm) +{ + u8 error; + + if (lm8323_read(lm, LM8323_CMD_READ_ERR, &error, 1) == 1) { + if (error & ERR_FIFOOVER) + dev_vdbg(&lm->client->dev, "fifo overflow!\n"); + if (error & ERR_KEYOVR) + dev_vdbg(&lm->client->dev, + "more than two keys pressed\n"); + if (error & ERR_CMDUNK) + dev_vdbg(&lm->client->dev, + "unknown command submitted\n"); + if (error & ERR_BADPAR) + dev_vdbg(&lm->client->dev, "bad command parameter\n"); + } +} + +static void lm8323_reset(struct lm8323_chip *lm) +{ + /* The docs say we must pass 0xAA as the data byte. */ + lm8323_write(lm, 2, LM8323_CMD_RESET, 0xAA); +} + +static int lm8323_configure(struct lm8323_chip *lm) +{ + int keysize = (lm->size_x << 4) | lm->size_y; + int clock = (CLK_SLOWCLKEN | CLK_RCPWM_EXTERNAL); + int debounce = lm->debounce_time >> 2; + int active = lm->active_time >> 2; + + /* + * Active time must be greater than the debounce time: if it's + * a close-run thing, give ourselves a 12ms buffer. + */ + if (debounce >= active) + active = debounce + 3; + + lm8323_write(lm, 2, LM8323_CMD_WRITE_CFG, 0); + lm8323_write(lm, 2, LM8323_CMD_WRITE_CLOCK, clock); + lm8323_write(lm, 2, LM8323_CMD_SET_KEY_SIZE, keysize); + lm8323_set_active_time(lm, lm->active_time); + lm8323_write(lm, 2, LM8323_CMD_SET_DEBOUNCE, debounce); + lm8323_write(lm, 3, LM8323_CMD_WRITE_PORT_STATE, 0xff, 0xff); + lm8323_write(lm, 3, LM8323_CMD_WRITE_PORT_SEL, 0, 0); + + /* + * Not much we can do about errors at this point, so just hope + * for the best. + */ + + return 0; +} + +static void pwm_done(struct lm8323_pwm *pwm) +{ + mutex_lock(&pwm->lock); + pwm->running = false; + if (pwm->desired_brightness != pwm->brightness) + schedule_work(&pwm->work); + mutex_unlock(&pwm->lock); +} + +/* + * Bottom half: handle the interrupt by posting key events, or dealing with + * errors appropriately. + */ +static void lm8323_work(struct work_struct *work) +{ + struct lm8323_chip *lm = work_to_lm8323(work); + u8 ints; + int i; + + mutex_lock(&lm->lock); + + while ((lm8323_read(lm, LM8323_CMD_READ_INT, &ints, 1) == 1) && ints) { + if (likely(ints & INT_KEYPAD)) + process_keys(lm); + if (ints & INT_ROTATOR) { + /* We don't currently support the rotator. */ + dev_vdbg(&lm->client->dev, "rotator fired\n"); + } + if (ints & INT_ERROR) { + dev_vdbg(&lm->client->dev, "error!\n"); + lm8323_process_error(lm); + } + if (ints & INT_NOINIT) { + dev_err(&lm->client->dev, "chip lost config; " + "reinitialising\n"); + lm8323_configure(lm); + } + for (i = 0; i < LM8323_NUM_PWMS; i++) { + if (ints & (1 << (INT_PWM1 + i))) { + dev_vdbg(&lm->client->dev, + "pwm%d engine completed\n", i); + pwm_done(&lm->pwm[i]); + } + } + } + + mutex_unlock(&lm->lock); +} + +/* + * We cannot use I2C in interrupt context, so we just schedule work. + */ +static irqreturn_t lm8323_irq(int irq, void *data) +{ + struct lm8323_chip *lm = data; + + schedule_work(&lm->work); + + return IRQ_HANDLED; +} + +/* + * Read the chip ID. + */ +static int lm8323_read_id(struct lm8323_chip *lm, u8 *buf) +{ + int bytes; + + bytes = lm8323_read(lm, LM8323_CMD_READ_ID, buf, 2); + if (unlikely(bytes != 2)) + return -EIO; + + return 0; +} + +static void lm8323_write_pwm_one(struct lm8323_pwm *pwm, int pos, u16 cmd) +{ + lm8323_write(pwm->chip, 4, LM8323_CMD_PWM_WRITE, (pos << 2) | pwm->id, + (cmd & 0xff00) >> 8, cmd & 0x00ff); +} + +/* + * Write a script into a given PWM engine, concluding with PWM_END. + * If 'kill' is nonzero, the engine will be shut down at the end + * of the script, producing a zero output. Otherwise the engine + * will be kept running at the final PWM level indefinitely. + */ +static void lm8323_write_pwm(struct lm8323_pwm *pwm, int kill, + int len, const u16 *cmds) +{ + int i; + + for (i = 0; i < len; i++) + lm8323_write_pwm_one(pwm, i, cmds[i]); + + lm8323_write_pwm_one(pwm, i++, PWM_END(kill)); + lm8323_write(pwm->chip, 2, LM8323_CMD_START_PWM, pwm->id); + pwm->running = true; +} + +static void lm8323_pwm_work(struct work_struct *work) +{ + struct lm8323_pwm *pwm = work_to_pwm(work); + int div512, perstep, steps, hz, up, kill; + u16 pwm_cmds[3]; + int num_cmds = 0; + + mutex_lock(&pwm->lock); + + /* + * Do nothing if we're already at the requested level, + * or previous setting is not yet complete. In the latter + * case we will be called again when the previous PWM script + * finishes. + */ + if (pwm->running || pwm->desired_brightness == pwm->brightness) + goto out; + + kill = (pwm->desired_brightness == 0); + up = (pwm->desired_brightness > pwm->brightness); + steps = abs(pwm->desired_brightness - pwm->brightness); + + /* + * Convert time (in ms) into a divisor (512 or 16 on a refclk of + * 32768Hz), and number of ticks per step. + */ + if ((pwm->fade_time / steps) > (32768 / 512)) { + div512 = 1; + hz = 32768 / 512; + } else { + div512 = 0; + hz = 32768 / 16; + } + + perstep = (hz * pwm->fade_time) / (steps * 1000); + + if (perstep == 0) + perstep = 1; + else if (perstep > 63) + perstep = 63; + + while (steps) { + int s; + + s = min(126, steps); + pwm_cmds[num_cmds++] = PWM_RAMP(div512, perstep, s, up); + steps -= s; + } + + lm8323_write_pwm(pwm, kill, num_cmds, pwm_cmds); + pwm->brightness = pwm->desired_brightness; + + out: + mutex_unlock(&pwm->lock); +} + +static void lm8323_pwm_set_brightness(struct led_classdev *led_cdev, + enum led_brightness brightness) +{ + struct lm8323_pwm *pwm = cdev_to_pwm(led_cdev); + struct lm8323_chip *lm = pwm->chip; + + mutex_lock(&pwm->lock); + pwm->desired_brightness = brightness; + mutex_unlock(&pwm->lock); + + if (in_interrupt()) { + schedule_work(&pwm->work); + } else { + /* + * Schedule PWM work as usual unless we are going into suspend + */ + mutex_lock(&lm->lock); + if (likely(!lm->pm_suspend)) + schedule_work(&pwm->work); + else + lm8323_pwm_work(&pwm->work); + mutex_unlock(&lm->lock); + } +} + +static ssize_t lm8323_pwm_show_time(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct led_classdev *led_cdev = dev_get_drvdata(dev); + struct lm8323_pwm *pwm = cdev_to_pwm(led_cdev); + + return sprintf(buf, "%d\n", pwm->fade_time); +} + +static ssize_t lm8323_pwm_store_time(struct device *dev, + struct device_attribute *attr, const char *buf, size_t len) +{ + struct led_classdev *led_cdev = dev_get_drvdata(dev); + struct lm8323_pwm *pwm = cdev_to_pwm(led_cdev); + int ret; + unsigned long time; + + ret = strict_strtoul(buf, 10, &time); + /* Numbers only, please. */ + if (ret) + return -EINVAL; + + pwm->fade_time = time; + + return strlen(buf); +} +static DEVICE_ATTR(time, 0644, lm8323_pwm_show_time, lm8323_pwm_store_time); + +static int init_pwm(struct lm8323_chip *lm, int id, struct device *dev, + const char *name) +{ + struct lm8323_pwm *pwm; + + BUG_ON(id > 3); + + pwm = &lm->pwm[id - 1]; + + pwm->id = id; + pwm->fade_time = 0; + pwm->brightness = 0; + pwm->desired_brightness = 0; + pwm->running = false; + pwm->enabled = false; + INIT_WORK(&pwm->work, lm8323_pwm_work); + mutex_init(&pwm->lock); + pwm->chip = lm; + + if (name) { + pwm->cdev.name = name; + pwm->cdev.brightness_set = lm8323_pwm_set_brightness; + if (led_classdev_register(dev, &pwm->cdev) < 0) { + dev_err(dev, "couldn't register PWM %d\n", id); + return -1; + } + if (device_create_file(pwm->cdev.dev, + &dev_attr_time) < 0) { + dev_err(dev, "couldn't register time attribute\n"); + led_classdev_unregister(&pwm->cdev); + return -1; + } + pwm->enabled = true; + } + + return 0; +} + +static struct i2c_driver lm8323_i2c_driver; + +static ssize_t lm8323_show_disable(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct lm8323_chip *lm = dev_get_drvdata(dev); + + return sprintf(buf, "%u\n", !lm->kp_enabled); +} + +static ssize_t lm8323_set_disable(struct device *dev, + struct device_attribute *attr, + const char *buf, size_t count) +{ + struct lm8323_chip *lm = dev_get_drvdata(dev); + int ret; + unsigned long i; + + ret = strict_strtoul(buf, 10, &i); + + mutex_lock(&lm->lock); + lm->kp_enabled = !i; + mutex_unlock(&lm->lock); + + return count; +} +static DEVICE_ATTR(disable_kp, 0644, lm8323_show_disable, lm8323_set_disable); + +static int __devinit lm8323_probe(struct i2c_client *client, + const struct i2c_device_id *id) +{ + struct lm8323_platform_data *pdata = client->dev.platform_data; + struct input_dev *idev; + struct lm8323_chip *lm; + int i, err; + unsigned long tmo; + u8 data[2]; + + if (!pdata || !pdata->size_x || !pdata->size_y) { + dev_err(&client->dev, "missing platform_data\n"); + return -EINVAL; + } + + if (pdata->size_x > 8) { + dev_err(&client->dev, "invalid x size %d specified\n", + pdata->size_x); + return -EINVAL; + } + + if (pdata->size_y > 12) { + dev_err(&client->dev, "invalid y size %d specified\n", + pdata->size_y); + return -EINVAL; + } + + lm = kzalloc(sizeof *lm, GFP_KERNEL); + idev = input_allocate_device(); + if (!lm || !idev) { + err = -ENOMEM; + goto fail1; + } + + i2c_set_clientdata(client, lm); + + lm->client = client; + lm->idev = idev; + mutex_init(&lm->lock); + INIT_WORK(&lm->work, lm8323_work); + + lm->size_x = pdata->size_x; + lm->size_y = pdata->size_y; + dev_vdbg(&client->dev, "Keypad size: %d x %d\n", + lm->size_x, lm->size_y); + + lm->debounce_time = pdata->debounce_time; + lm->active_time = pdata->active_time; + + lm8323_reset(lm); + + /* Nothing's set up to service the IRQ yet, so just spin for max. + * 100ms until we can configure. */ + tmo = jiffies + msecs_to_jiffies(100); + while (lm8323_read(lm, LM8323_CMD_READ_INT, data, 1) == 1) { + if (data[0] & INT_NOINIT) + break; + + if (time_after(jiffies, tmo)) { + dev_err(&client->dev, + "timeout waiting for initialisation\n"); + break; + } + + msleep(1); + } + + lm8323_configure(lm); + + /* If a true probe check the device */ + if (lm8323_read_id(lm, data) != 0) { + dev_err(&client->dev, "device not found\n"); + err = -ENODEV; + goto fail1; + } + + for (i = 0; i < LM8323_NUM_PWMS; i++) { + err = init_pwm(lm, i + 1, &client->dev, pdata->pwm_names[i]); + if (err < 0) + goto fail2; + } + + lm->kp_enabled = true; + err = device_create_file(&client->dev, &dev_attr_disable_kp); + if (err < 0) + goto fail2; + + idev->name = pdata->name ? : "LM8323 keypad"; + snprintf(lm->phys, sizeof(lm->phys), + "%s/input-kp", dev_name(&client->dev)); + idev->phys = lm->phys; + + idev->evbit[0] = BIT(EV_KEY) | BIT(EV_MSC); + __set_bit(MSC_SCAN, idev->mscbit); + for (i = 0; i < LM8323_KEYMAP_SIZE; i++) { + __set_bit(pdata->keymap[i], idev->keybit); + lm->keymap[i] = pdata->keymap[i]; + } + __clear_bit(KEY_RESERVED, idev->keybit); + + if (pdata->repeat) + __set_bit(EV_REP, idev->evbit); + + err = input_register_device(idev); + if (err) { + dev_dbg(&client->dev, "error registering input device\n"); + goto fail3; + } + + err = request_irq(client->irq, lm8323_irq, + IRQF_TRIGGER_FALLING | IRQF_DISABLED, + "lm8323", lm); + if (err) { + dev_err(&client->dev, "could not get IRQ %d\n", client->irq); + goto fail4; + } + + device_init_wakeup(&client->dev, 1); + enable_irq_wake(client->irq); + + return 0; + +fail4: + input_unregister_device(idev); + idev = NULL; +fail3: + device_remove_file(&client->dev, &dev_attr_disable_kp); +fail2: + while (--i >= 0) + if (lm->pwm[i].enabled) + led_classdev_unregister(&lm->pwm[i].cdev); +fail1: + input_free_device(idev); + kfree(lm); + return err; +} + +static int __devexit lm8323_remove(struct i2c_client *client) +{ + struct lm8323_chip *lm = i2c_get_clientdata(client); + int i; + + disable_irq_wake(client->irq); + free_irq(client->irq, lm); + cancel_work_sync(&lm->work); + + input_unregister_device(lm->idev); + + device_remove_file(&lm->client->dev, &dev_attr_disable_kp); + + for (i = 0; i < 3; i++) + if (lm->pwm[i].enabled) + led_classdev_unregister(&lm->pwm[i].cdev); + + kfree(lm); + + return 0; +} + +#ifdef CONFIG_PM +/* + * We don't need to explicitly suspend the chip, as it already switches off + * when there's no activity. + */ +static int lm8323_suspend(struct i2c_client *client, pm_message_t mesg) +{ + struct lm8323_chip *lm = i2c_get_clientdata(client); + int i; + + set_irq_wake(client->irq, 0); + disable_irq(client->irq); + + mutex_lock(&lm->lock); + lm->pm_suspend = true; + mutex_unlock(&lm->lock); + + for (i = 0; i < 3; i++) + if (lm->pwm[i].enabled) + led_classdev_suspend(&lm->pwm[i].cdev); + + return 0; +} + +static int lm8323_resume(struct i2c_client *client) +{ + struct lm8323_chip *lm = i2c_get_clientdata(client); + int i; + + mutex_lock(&lm->lock); + lm->pm_suspend = false; + mutex_unlock(&lm->lock); + + for (i = 0; i < 3; i++) + if (lm->pwm[i].enabled) + led_classdev_resume(&lm->pwm[i].cdev); + + enable_irq(client->irq); + set_irq_wake(client->irq, 1); + + return 0; +} +#else +#define lm8323_suspend NULL +#define lm8323_resume NULL +#endif + +static const struct i2c_device_id lm8323_id[] = { + { "lm8323", 0 }, + { } +}; + +static struct i2c_driver lm8323_i2c_driver = { + .driver = { + .name = "lm8323", + }, + .probe = lm8323_probe, + .remove = __devexit_p(lm8323_remove), + .suspend = lm8323_suspend, + .resume = lm8323_resume, + .id_table = lm8323_id, +}; +MODULE_DEVICE_TABLE(i2c, lm8323_id); + +static int __init lm8323_init(void) +{ + return i2c_add_driver(&lm8323_i2c_driver); +} +module_init(lm8323_init); + +static void __exit lm8323_exit(void) +{ + i2c_del_driver(&lm8323_i2c_driver); +} +module_exit(lm8323_exit); + +MODULE_AUTHOR("Timo O. Karjalainen <timo.o.karjalainen@nokia.com>"); +MODULE_AUTHOR("Daniel Stone"); +MODULE_AUTHOR("Felipe Balbi <felipe.balbi@nokia.com>"); +MODULE_DESCRIPTION("LM8323 keypad driver"); +MODULE_LICENSE("GPL"); + diff --git a/drivers/input/misc/Kconfig b/drivers/input/misc/Kconfig index 06f46fc..1acfa3a 100644 --- a/drivers/input/misc/Kconfig +++ b/drivers/input/misc/Kconfig @@ -193,6 +193,16 @@ config INPUT_CM109 To compile this driver as a module, choose M here: the module will be called cm109. +config INPUT_TWL4030_PWRBUTTON + tristate "TWL4030 Power button Driver" + depends on TWL4030_CORE + help + Say Y here if you want to enable power key reporting via the + TWL4030 family of chips. + + To compile this driver as a module, choose M here. The module will + be called twl4030_pwrbutton. + config INPUT_UINPUT tristate "User level driver support" help @@ -250,4 +260,13 @@ config INPUT_RB532_BUTTON To compile this driver as a module, choose M here: the module will be called rb532_button. +config INPUT_DM355EVM + tristate "TI DaVinci DM355 EVM Keypad and IR Remote" + depends on MFD_DM355EVM_MSP + help + Supports the pushbuttons and IR remote used with + the DM355 EVM board. + + To compile this driver as a module, choose M here: the + module will be called dm355evm_keys. endif diff --git a/drivers/input/misc/Makefile b/drivers/input/misc/Makefile index eb3f407..0d979fd 100644 --- a/drivers/input/misc/Makefile +++ b/drivers/input/misc/Makefile @@ -10,6 +10,7 @@ obj-$(CONFIG_INPUT_ATI_REMOTE2) += ati_remote2.o obj-$(CONFIG_INPUT_ATLAS_BTNS) += atlas_btns.o obj-$(CONFIG_INPUT_CM109) += cm109.o obj-$(CONFIG_INPUT_COBALT_BTNS) += cobalt_btns.o +obj-$(CONFIG_INPUT_DM355EVM) += dm355evm_keys.o obj-$(CONFIG_HP_SDC_RTC) += hp_sdc_rtc.o obj-$(CONFIG_INPUT_IXP4XX_BEEPER) += ixp4xx-beeper.o obj-$(CONFIG_INPUT_KEYSPAN_REMOTE) += keyspan_remote.o @@ -21,6 +22,7 @@ obj-$(CONFIG_INPUT_RB532_BUTTON) += rb532_button.o obj-$(CONFIG_INPUT_GPIO_ROTARY_ENCODER) += rotary_encoder.o obj-$(CONFIG_INPUT_SGI_BTNS) += sgi_btns.o obj-$(CONFIG_INPUT_SPARCSPKR) += sparcspkr.o +obj-$(CONFIG_INPUT_TWL4030_PWRBUTTON) += twl4030-pwrbutton.o obj-$(CONFIG_INPUT_UINPUT) += uinput.o obj-$(CONFIG_INPUT_WISTRON_BTNS) += wistron_btns.o obj-$(CONFIG_INPUT_YEALINK) += yealink.o diff --git a/drivers/input/misc/ati_remote2.c b/drivers/input/misc/ati_remote2.c index 922c051..0501f0e 100644 --- a/drivers/input/misc/ati_remote2.c +++ b/drivers/input/misc/ati_remote2.c @@ -509,7 +509,7 @@ static int ati_remote2_setkeycode(struct input_dev *idev, int scancode, int keyc old_keycode = ar2->keycode[mode][index]; ar2->keycode[mode][index] = keycode; - set_bit(keycode, idev->keybit); + __set_bit(keycode, idev->keybit); for (mode = 0; mode < ATI_REMOTE2_MODES; mode++) { for (index = 0; index < ARRAY_SIZE(ati_remote2_key_table); index++) { @@ -518,7 +518,7 @@ static int ati_remote2_setkeycode(struct input_dev *idev, int scancode, int keyc } } - clear_bit(old_keycode, idev->keybit); + __clear_bit(old_keycode, idev->keybit); return 0; } @@ -543,7 +543,7 @@ static int ati_remote2_input_init(struct ati_remote2 *ar2) for (mode = 0; mode < ATI_REMOTE2_MODES; mode++) { for (index = 0; index < ARRAY_SIZE(ati_remote2_key_table); index++) { ar2->keycode[mode][index] = ati_remote2_key_table[index].keycode; - set_bit(ar2->keycode[mode][index], idev->keybit); + __set_bit(ar2->keycode[mode][index], idev->keybit); } } @@ -554,11 +554,11 @@ static int ati_remote2_input_init(struct ati_remote2 *ar2) ar2->keycode[ATI_REMOTE2_AUX3][index] = KEY_PROG3; ar2->keycode[ATI_REMOTE2_AUX4][index] = KEY_PROG4; ar2->keycode[ATI_REMOTE2_PC][index] = KEY_PC; - set_bit(KEY_PROG1, idev->keybit); - set_bit(KEY_PROG2, idev->keybit); - set_bit(KEY_PROG3, idev->keybit); - set_bit(KEY_PROG4, idev->keybit); - set_bit(KEY_PC, idev->keybit); + __set_bit(KEY_PROG1, idev->keybit); + __set_bit(KEY_PROG2, idev->keybit); + __set_bit(KEY_PROG3, idev->keybit); + __set_bit(KEY_PROG4, idev->keybit); + __set_bit(KEY_PC, idev->keybit); idev->rep[REP_DELAY] = 250; idev->rep[REP_PERIOD] = 33; diff --git a/drivers/input/misc/dm355evm_keys.c b/drivers/input/misc/dm355evm_keys.c new file mode 100644 index 0000000..a63315c --- /dev/null +++ b/drivers/input/misc/dm355evm_keys.c @@ -0,0 +1,329 @@ +/* + * dm355evm_keys.c - support buttons and IR remote on DM355 EVM board + * + * Copyright (c) 2008 by David Brownell + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version + * 2 of the License, or (at your option) any later version. + */ +#include <linux/kernel.h> +#include <linux/init.h> +#include <linux/input.h> +#include <linux/platform_device.h> +#include <linux/interrupt.h> + +#include <linux/i2c/dm355evm_msp.h> + + +/* + * The MSP430 firmware on the DM355 EVM monitors on-board pushbuttons + * and an IR receptor used for the remote control. When any key is + * pressed, or its autorepeat kicks in, an event is sent. This driver + * read those events from the small (32 event) queue and reports them. + * + * Because we communicate with the MSP430 using I2C, and all I2C calls + * in Linux sleep, we need to cons up a kind of threaded IRQ handler + * using a work_struct. The IRQ is active low, but we use it through + * the GPIO controller so we can trigger on falling edges. + * + * Note that physically there can only be one of these devices. + * + * This driver was tested with firmware revision A4. + */ +struct dm355evm_keys { + struct work_struct work; + struct input_dev *input; + struct device *dev; + int irq; +}; + +static irqreturn_t dm355evm_keys_irq(int irq, void *_keys) +{ + struct dm355evm_keys *keys = _keys; + + schedule_work(&keys->work); + return IRQ_HANDLED; +} + +/* These initial keycodes can be remapped by dm355evm_setkeycode(). */ +static struct { + u16 event; + u16 keycode; +} dm355evm_keys[] = { + + /* + * Pushbuttons on the EVM board ... note that the labels for these + * are SW10/SW11/etc on the PC board. The left/right orientation + * comes only from the firmware's documentation, and presumes the + * power connector is immediately in front of you and the IR sensor + * is to the right. (That is, rotate the board counter-clockwise + * by 90 degrees from the SW10/etc and "DM355 EVM" labels.) + */ + { 0x00d8, KEY_OK, }, /* SW12 */ + { 0x00b8, KEY_UP, }, /* SW13 */ + { 0x00e8, KEY_DOWN, }, /* SW11 */ + { 0x0078, KEY_LEFT, }, /* SW14 */ + { 0x00f0, KEY_RIGHT, }, /* SW10 */ + + /* + * IR buttons ... codes assigned to match the universal remote + * provided with the EVM (Philips PM4S) using DVD code 0020. + * + * These event codes match firmware documentation, but other + * remote controls could easily send more RC5-encoded events. + * The PM4S manual was used in several cases to help select + * a keycode reflecting the intended usage. + * + * RC5 codes are 14 bits, with two start bits (0x3 prefix) + * and a toggle bit (masked out below). + */ + { 0x300c, KEY_POWER, }, /* NOTE: docs omit this */ + { 0x3000, KEY_NUMERIC_0, }, + { 0x3001, KEY_NUMERIC_1, }, + { 0x3002, KEY_NUMERIC_2, }, + { 0x3003, KEY_NUMERIC_3, }, + { 0x3004, KEY_NUMERIC_4, }, + { 0x3005, KEY_NUMERIC_5, }, + { 0x3006, KEY_NUMERIC_6, }, + { 0x3007, KEY_NUMERIC_7, }, + { 0x3008, KEY_NUMERIC_8, }, + { 0x3009, KEY_NUMERIC_9, }, + { 0x3022, KEY_ENTER, }, + { 0x30ec, KEY_MODE, }, /* "tv/vcr/..." */ + { 0x300f, KEY_SELECT, }, /* "info" */ + { 0x3020, KEY_CHANNELUP, }, /* "up" */ + { 0x302e, KEY_MENU, }, /* "in/out" */ + { 0x3011, KEY_VOLUMEDOWN, }, /* "left" */ + { 0x300d, KEY_MUTE, }, /* "ok" */ + { 0x3010, KEY_VOLUMEUP, }, /* "right" */ + { 0x301e, KEY_SUBTITLE, }, /* "cc" */ + { 0x3021, KEY_CHANNELDOWN, }, /* "down" */ + { 0x3022, KEY_PREVIOUS, }, + { 0x3026, KEY_SLEEP, }, + { 0x3172, KEY_REWIND, }, /* NOTE: docs wrongly say 0x30ca */ + { 0x3175, KEY_PLAY, }, + { 0x3174, KEY_FASTFORWARD, }, + { 0x3177, KEY_RECORD, }, + { 0x3176, KEY_STOP, }, + { 0x3169, KEY_PAUSE, }, +}; + +static void dm355evm_keys_work(struct work_struct *work) +{ + struct dm355evm_keys *keys; + int status; + + keys = container_of(work, struct dm355evm_keys, work); + + /* For simplicity we ignore INPUT_COUNT and just read + * events until we get the "queue empty" indicator. + * Reading INPUT_LOW decrements the count. + */ + for (;;) { + static u16 last_event; + u16 event; + int keycode; + int i; + + status = dm355evm_msp_read(DM355EVM_MSP_INPUT_HIGH); + if (status < 0) { + dev_dbg(keys->dev, "input high err %d\n", + status); + break; + } + event = status << 8; + + status = dm355evm_msp_read(DM355EVM_MSP_INPUT_LOW); + if (status < 0) { + dev_dbg(keys->dev, "input low err %d\n", + status); + break; + } + event |= status; + if (event == 0xdead) + break; + + /* Press and release a button: two events, same code. + * Press and hold (autorepeat), then release: N events + * (N > 2), same code. For RC5 buttons the toggle bits + * distinguish (for example) "1-autorepeat" from "1 1"; + * but PCB buttons don't support that bit. + * + * So we must synthesize release events. We do that by + * mapping events to a press/release event pair; then + * to avoid adding extra events, skip the second event + * of each pair. + */ + if (event == last_event) { + last_event = 0; + continue; + } + last_event = event; + + /* ignore the RC5 toggle bit */ + event &= ~0x0800; + + /* find the key, or leave it as unknown */ + keycode = KEY_UNKNOWN; + for (i = 0; i < ARRAY_SIZE(dm355evm_keys); i++) { + if (dm355evm_keys[i].event != event) + continue; + keycode = dm355evm_keys[i].keycode; + break; + } + dev_dbg(keys->dev, + "input event 0x%04x--> keycode %d\n", + event, keycode); + + /* report press + release */ + input_report_key(keys->input, keycode, 1); + input_sync(keys->input); + input_report_key(keys->input, keycode, 0); + input_sync(keys->input); + } +} + +static int dm355evm_setkeycode(struct input_dev *dev, int index, int keycode) +{ + u16 old_keycode; + unsigned i; + + if (((unsigned)index) >= ARRAY_SIZE(dm355evm_keys)) + return -EINVAL; + + old_keycode = dm355evm_keys[index].keycode; + dm355evm_keys[index].keycode = keycode; + set_bit(keycode, dev->keybit); + + for (i = 0; i < ARRAY_SIZE(dm355evm_keys); i++) { + if (dm355evm_keys[index].keycode == old_keycode) + goto done; + } + clear_bit(old_keycode, dev->keybit); +done: + return 0; +} + +static int dm355evm_getkeycode(struct input_dev *dev, int index, int *keycode) +{ + if (((unsigned)index) >= ARRAY_SIZE(dm355evm_keys)) + return -EINVAL; + + return dm355evm_keys[index].keycode; +} + +/*----------------------------------------------------------------------*/ + +static int __devinit dm355evm_keys_probe(struct platform_device *pdev) +{ + struct dm355evm_keys *keys; + struct input_dev *input; + int status; + int i; + + /* allocate instance struct and input dev */ + keys = kzalloc(sizeof *keys, GFP_KERNEL); + input = input_allocate_device(); + if (!keys || !input) { + status = -ENOMEM; + goto fail1; + } + + keys->dev = &pdev->dev; + keys->input = input; + INIT_WORK(&keys->work, dm355evm_keys_work); + + /* set up "threaded IRQ handler" */ + status = platform_get_irq(pdev, 0); + if (status < 0) + goto fail1; + keys->irq = status; + + input_set_drvdata(input, keys); + + input->name = "DM355 EVM Controls"; + input->phys = "dm355evm/input0"; + input->dev.parent = &pdev->dev; + + input->id.bustype = BUS_I2C; + input->id.product = 0x0355; + input->id.version = dm355evm_msp_read(DM355EVM_MSP_FIRMREV); + + input->evbit[0] = BIT(EV_KEY); + for (i = 0; i < ARRAY_SIZE(dm355evm_keys); i++) + __set_bit(dm355evm_keys[i].keycode, input->keybit); + + input->setkeycode = dm355evm_setkeycode; + input->getkeycode = dm355evm_getkeycode; + + /* REVISIT: flush the event queue? */ + + status = request_irq(keys->irq, dm355evm_keys_irq, + IRQF_TRIGGER_FALLING, + dev_name(&pdev->dev), keys); + if (status < 0) + goto fail1; + + /* register */ + status = input_register_device(input); + if (status < 0) + goto fail2; + + platform_set_drvdata(pdev, keys); + + return 0; + +fail2: + free_irq(keys->irq, keys); +fail1: + input_free_device(input); + kfree(keys); + dev_err(&pdev->dev, "can't register, err %d\n", status); + + return status; +} + +static int __devexit dm355evm_keys_remove(struct platform_device *pdev) +{ + struct dm355evm_keys *keys = platform_get_drvdata(pdev); + + free_irq(keys->irq, keys); + input_unregister_device(keys->input); + kfree(keys); + + return 0; +} + +/* REVISIT: add suspend/resume when DaVinci supports it. The IRQ should + * be able to wake up the system. When device_may_wakeup(&pdev->dev), call + * enable_irq_wake() on suspend, and disable_irq_wake() on resume. + */ + +/* + * I2C is used to talk to the MSP430, but this platform device is + * exposed by an MFD driver that manages I2C communications. + */ +static struct platform_driver dm355evm_keys_driver = { + .probe = dm355evm_keys_probe, + .remove = __devexit_p(dm355evm_keys_remove), + .driver = { + .owner = THIS_MODULE, + .name = "dm355evm_keys", + }, +}; + +static int __init dm355evm_keys_init(void) +{ + return platform_driver_register(&dm355evm_keys_driver); +} +module_init(dm355evm_keys_init); + +static void __exit dm355evm_keys_exit(void) +{ + platform_driver_unregister(&dm355evm_keys_driver); +} +module_exit(dm355evm_keys_exit); + +MODULE_LICENSE("GPL"); diff --git a/drivers/input/misc/rotary_encoder.c b/drivers/input/misc/rotary_encoder.c index 5bb3ab5..c806fbf 100644 --- a/drivers/input/misc/rotary_encoder.c +++ b/drivers/input/misc/rotary_encoder.c @@ -26,13 +26,17 @@ #define DRV_NAME "rotary-encoder" struct rotary_encoder { - unsigned int irq_a; - unsigned int irq_b; - unsigned int pos; - unsigned int armed; - unsigned int dir; struct input_dev *input; struct rotary_encoder_platform_data *pdata; + + unsigned int axis; + unsigned int pos; + + unsigned int irq_a; + unsigned int irq_b; + + bool armed; + unsigned char dir; /* 0 - clockwise, 1 - CCW */ }; static irqreturn_t rotary_encoder_irq(int irq, void *dev_id) @@ -53,21 +57,32 @@ static irqreturn_t rotary_encoder_irq(int irq, void *dev_id) if (!encoder->armed) break; - if (encoder->dir) { - /* turning counter-clockwise */ - encoder->pos += pdata->steps; - encoder->pos--; - encoder->pos %= pdata->steps; + if (pdata->relative_axis) { + input_report_rel(encoder->input, pdata->axis, + encoder->dir ? -1 : 1); } else { - /* turning clockwise */ - encoder->pos++; - encoder->pos %= pdata->steps; + unsigned int pos = encoder->pos; + + if (encoder->dir) { + /* turning counter-clockwise */ + if (pdata->rollover) + pos += pdata->steps; + if (pos) + pos--; + } else { + /* turning clockwise */ + if (pdata->rollover || pos < pdata->steps) + pos++; + } + if (pdata->rollover) + pos %= pdata->steps; + encoder->pos = pos; + input_report_abs(encoder->input, pdata->axis, + encoder->pos); } - - input_report_abs(encoder->input, pdata->axis, encoder->pos); input_sync(encoder->input); - encoder->armed = 0; + encoder->armed = false; break; case 0x1: @@ -77,7 +92,7 @@ static irqreturn_t rotary_encoder_irq(int irq, void *dev_id) break; case 0x3: - encoder->armed = 1; + encoder->armed = true; break; } @@ -113,9 +128,15 @@ static int __devinit rotary_encoder_probe(struct platform_device *pdev) input->name = pdev->name; input->id.bustype = BUS_HOST; input->dev.parent = &pdev->dev; - input->evbit[0] = BIT_MASK(EV_ABS); - input_set_abs_params(encoder->input, - pdata->axis, 0, pdata->steps, 0, 1); + + if (pdata->relative_axis) { + input->evbit[0] = BIT_MASK(EV_REL); + input->relbit[0] = BIT_MASK(pdata->axis); + } else { + input->evbit[0] = BIT_MASK(EV_ABS); + input_set_abs_params(encoder->input, + pdata->axis, 0, pdata->steps, 0, 1); + } err = input_register_device(input); if (err) { diff --git a/drivers/input/misc/twl4030-pwrbutton.c b/drivers/input/misc/twl4030-pwrbutton.c new file mode 100644 index 0000000..f5fc997 --- /dev/null +++ b/drivers/input/misc/twl4030-pwrbutton.c @@ -0,0 +1,145 @@ +/** + * twl4030-pwrbutton.c - TWL4030 Power Button Input Driver + * + * Copyright (C) 2008-2009 Nokia Corporation + * + * Written by Peter De Schrijver <peter.de-schrijver@nokia.com> + * Several fixes by Felipe Balbi <felipe.balbi@nokia.com> + * + * This file is subject to the terms and conditions of the GNU General + * Public License. See the file "COPYING" in the main directory of this + * archive for more details. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + +#include <linux/module.h> +#include <linux/init.h> +#include <linux/kernel.h> +#include <linux/errno.h> +#include <linux/input.h> +#include <linux/interrupt.h> +#include <linux/platform_device.h> +#include <linux/i2c/twl4030.h> + +#define PWR_PWRON_IRQ (1 << 0) + +#define STS_HW_CONDITIONS 0xf + +static irqreturn_t powerbutton_irq(int irq, void *_pwr) +{ + struct input_dev *pwr = _pwr; + int err; + u8 value; + +#ifdef CONFIG_LOCKDEP + /* WORKAROUND for lockdep forcing IRQF_DISABLED on us, which + * we don't want and can't tolerate since this is a threaded + * IRQ and can sleep due to the i2c reads it has to issue. + * Although it might be friendlier not to borrow this thread + * context... + */ + local_irq_enable(); +#endif + + err = twl4030_i2c_read_u8(TWL4030_MODULE_PM_MASTER, &value, + STS_HW_CONDITIONS); + if (!err) { + input_report_key(pwr, KEY_POWER, value & PWR_PWRON_IRQ); + input_sync(pwr); + } else { + dev_err(pwr->dev.parent, "twl4030: i2c error %d while reading" + " TWL4030 PM_MASTER STS_HW_CONDITIONS register\n", err); + } + + return IRQ_HANDLED; +} + +static int __devinit twl4030_pwrbutton_probe(struct platform_device *pdev) +{ + struct input_dev *pwr; + int irq = platform_get_irq(pdev, 0); + int err; + + pwr = input_allocate_device(); + if (!pwr) { + dev_dbg(&pdev->dev, "Can't allocate power button\n"); + return -ENOMEM; + } + + pwr->evbit[0] = BIT_MASK(EV_KEY); + pwr->keybit[BIT_WORD(KEY_POWER)] = BIT_MASK(KEY_POWER); + pwr->name = "twl4030_pwrbutton"; + pwr->phys = "twl4030_pwrbutton/input0"; + pwr->dev.parent = &pdev->dev; + + err = request_irq(irq, powerbutton_irq, + IRQF_TRIGGER_FALLING | IRQF_TRIGGER_RISING, + "twl4030_pwrbutton", pwr); + if (err < 0) { + dev_dbg(&pdev->dev, "Can't get IRQ for pwrbutton: %d\n", err); + goto free_input_dev; + } + + err = input_register_device(pwr); + if (err) { + dev_dbg(&pdev->dev, "Can't register power button: %d\n", err); + goto free_irq; + } + + platform_set_drvdata(pdev, pwr); + + return 0; + +free_irq: + free_irq(irq, NULL); +free_input_dev: + input_free_device(pwr); + return err; +} + +static int __devexit twl4030_pwrbutton_remove(struct platform_device *pdev) +{ + struct input_dev *pwr = platform_get_drvdata(pdev); + int irq = platform_get_irq(pdev, 0); + + free_irq(irq, pwr); + input_unregister_device(pwr); + + return 0; +} + +struct platform_driver twl4030_pwrbutton_driver = { + .probe = twl4030_pwrbutton_probe, + .remove = __devexit_p(twl4030_pwrbutton_remove), + .driver = { + .name = "twl4030_pwrbutton", + .owner = THIS_MODULE, + }, +}; + +static int __init twl4030_pwrbutton_init(void) +{ + return platform_driver_register(&twl4030_pwrbutton_driver); +} +module_init(twl4030_pwrbutton_init); + +static void __exit twl4030_pwrbutton_exit(void) +{ + platform_driver_unregister(&twl4030_pwrbutton_driver); +} +module_exit(twl4030_pwrbutton_exit); + +MODULE_ALIAS("platform:twl4030_pwrbutton"); +MODULE_DESCRIPTION("Triton2 Power Button"); +MODULE_LICENSE("GPL"); +MODULE_AUTHOR("Peter De Schrijver <peter.de-schrijver@nokia.com>"); +MODULE_AUTHOR("Felipe Balbi <felipe.balbi@nokia.com>"); + diff --git a/drivers/input/misc/uinput.c b/drivers/input/misc/uinput.c index 46b7cae..c5a49ab 100644 --- a/drivers/input/misc/uinput.c +++ b/drivers/input/misc/uinput.c @@ -54,27 +54,28 @@ static int uinput_dev_event(struct input_dev *dev, unsigned int type, unsigned i return 0; } +/* Atomically allocate an ID for the given request. Returns 0 on success. */ static int uinput_request_alloc_id(struct uinput_device *udev, struct uinput_request *request) { - /* Atomically allocate an ID for the given request. Returns 0 on success. */ int id; int err = -1; spin_lock(&udev->requests_lock); - for (id = 0; id < UINPUT_NUM_REQUESTS; id++) + for (id = 0; id < UINPUT_NUM_REQUESTS; id++) { if (!udev->requests[id]) { request->id = id; udev->requests[id] = request; err = 0; break; } + } spin_unlock(&udev->requests_lock); return err; } -static struct uinput_request* uinput_request_find(struct uinput_device *udev, int id) +static struct uinput_request *uinput_request_find(struct uinput_device *udev, int id) { /* Find an input request, by ID. Returns NULL if the ID isn't valid. */ if (id >= UINPUT_NUM_REQUESTS || id < 0) @@ -99,14 +100,51 @@ static void uinput_request_done(struct uinput_device *udev, struct uinput_reques complete(&request->done); } -static int uinput_request_submit(struct input_dev *dev, struct uinput_request *request) +static int uinput_request_submit(struct uinput_device *udev, struct uinput_request *request) { + int retval; + + retval = uinput_request_reserve_slot(udev, request); + if (retval) + return retval; + + retval = mutex_lock_interruptible(&udev->mutex); + if (retval) + return retval; + + if (udev->state != UIST_CREATED) { + retval = -ENODEV; + goto out; + } + /* Tell our userspace app about this new request by queueing an input event */ - uinput_dev_event(dev, EV_UINPUT, request->code, request->id); + uinput_dev_event(udev->dev, EV_UINPUT, request->code, request->id); + + out: + mutex_unlock(&udev->mutex); + return retval; +} + +/* + * Fail all ouitstanding requests so handlers don't wait for the userspace + * to finish processing them. + */ +static void uinput_flush_requests(struct uinput_device *udev) +{ + struct uinput_request *request; + int i; + + spin_lock(&udev->requests_lock); + + for (i = 0; i < UINPUT_NUM_REQUESTS; i++) { + request = udev->requests[i]; + if (request) { + request->retval = -ENODEV; + uinput_request_done(udev, request); + } + } - /* Wait for the request to complete */ - wait_for_completion(&request->done); - return request->retval; + spin_unlock(&udev->requests_lock); } static void uinput_dev_set_gain(struct input_dev *dev, u16 gain) @@ -126,6 +164,7 @@ static int uinput_dev_playback(struct input_dev *dev, int effect_id, int value) static int uinput_dev_upload_effect(struct input_dev *dev, struct ff_effect *effect, struct ff_effect *old) { + struct uinput_device *udev = input_get_drvdata(dev); struct uinput_request request; int retval; @@ -146,15 +185,18 @@ static int uinput_dev_upload_effect(struct input_dev *dev, struct ff_effect *eff request.u.upload.effect = effect; request.u.upload.old = old; - retval = uinput_request_reserve_slot(input_get_drvdata(dev), &request); - if (!retval) - retval = uinput_request_submit(dev, &request); + retval = uinput_request_submit(udev, &request); + if (!retval) { + wait_for_completion(&request.done); + retval = request.retval; + } return retval; } static int uinput_dev_erase_effect(struct input_dev *dev, int effect_id) { + struct uinput_device *udev = input_get_drvdata(dev); struct uinput_request request; int retval; @@ -166,9 +208,11 @@ static int uinput_dev_erase_effect(struct input_dev *dev, int effect_id) request.code = UI_FF_ERASE; request.u.effect_id = effect_id; - retval = uinput_request_reserve_slot(input_get_drvdata(dev), &request); - if (!retval) - retval = uinput_request_submit(dev, &request); + retval = uinput_request_submit(udev, &request); + if (!retval) { + wait_for_completion(&request.done); + retval = request.retval; + } return retval; } @@ -176,20 +220,24 @@ static int uinput_dev_erase_effect(struct input_dev *dev, int effect_id) static void uinput_destroy_device(struct uinput_device *udev) { const char *name, *phys; + struct input_dev *dev = udev->dev; + enum uinput_state old_state = udev->state; - if (udev->dev) { - name = udev->dev->name; - phys = udev->dev->phys; - if (udev->state == UIST_CREATED) - input_unregister_device(udev->dev); - else - input_free_device(udev->dev); + udev->state = UIST_NEW_DEVICE; + + if (dev) { + name = dev->name; + phys = dev->phys; + if (old_state == UIST_CREATED) { + uinput_flush_requests(udev); + input_unregister_device(dev); + } else { + input_free_device(dev); + } kfree(name); kfree(phys); udev->dev = NULL; } - - udev->state = UIST_NEW_DEVICE; } static int uinput_create_device(struct uinput_device *udev) diff --git a/drivers/input/mouse/Kconfig b/drivers/input/mouse/Kconfig index c66cc3d..8a2c5b1 100644 --- a/drivers/input/mouse/Kconfig +++ b/drivers/input/mouse/Kconfig @@ -303,4 +303,22 @@ config MOUSE_MAPLE To compile this driver as a module choose M here: the module will be called maplemouse. +config MOUSE_SYNAPTICS_I2C + tristate "Synaptics I2C Touchpad support" + depends on I2C + help + This driver supports Synaptics I2C touchpad controller on eXeda + mobile device. + The device will not work the synaptics X11 driver because + (i) it reports only relative coordinates and has no capabilities + to report absolute coordinates + (ii) the eXeda device itself uses Xfbdev as X Server and it does + not allow using xf86-input-* drivers. + + Say y here if you have eXeda device and want to use a Synaptics + I2C Touchpad. + + To compile this driver as a module, choose M here: the + module will be called synaptics_i2c. + endif diff --git a/drivers/input/mouse/Makefile b/drivers/input/mouse/Makefile index 4721894..010f265 100644 --- a/drivers/input/mouse/Makefile +++ b/drivers/input/mouse/Makefile @@ -18,6 +18,7 @@ obj-$(CONFIG_MOUSE_PS2) += psmouse.o obj-$(CONFIG_MOUSE_PXA930_TRKBALL) += pxa930_trkball.o obj-$(CONFIG_MOUSE_RISCPC) += rpcmouse.o obj-$(CONFIG_MOUSE_SERIAL) += sermouse.o +obj-$(CONFIG_MOUSE_SYNAPTICS_I2C) += synaptics_i2c.o obj-$(CONFIG_MOUSE_VSXXXAA) += vsxxxaa.o psmouse-objs := psmouse-base.o synaptics.o diff --git a/drivers/input/mouse/alps.c b/drivers/input/mouse/alps.c index daecc75..5547e24 100644 --- a/drivers/input/mouse/alps.c +++ b/drivers/input/mouse/alps.c @@ -38,25 +38,25 @@ static const struct alps_model_info alps_model_data[] = { { { 0x32, 0x02, 0x14 }, 0xf8, 0xf8, ALPS_PASS | ALPS_DUALPOINT }, /* Toshiba Salellite Pro M10 */ - { { 0x33, 0x02, 0x0a }, 0x88, 0xf8, ALPS_OLDPROTO }, /* UMAX-530T */ + { { 0x33, 0x02, 0x0a }, 0x88, 0xf8, ALPS_OLDPROTO }, /* UMAX-530T */ { { 0x53, 0x02, 0x0a }, 0xf8, 0xf8, 0 }, { { 0x53, 0x02, 0x14 }, 0xf8, 0xf8, 0 }, - { { 0x60, 0x03, 0xc8 }, 0xf8, 0xf8, 0 }, /* HP ze1115 */ + { { 0x60, 0x03, 0xc8 }, 0xf8, 0xf8, 0 }, /* HP ze1115 */ { { 0x63, 0x02, 0x0a }, 0xf8, 0xf8, 0 }, { { 0x63, 0x02, 0x14 }, 0xf8, 0xf8, 0 }, - { { 0x63, 0x02, 0x28 }, 0xf8, 0xf8, ALPS_FW_BK_2 }, /* Fujitsu Siemens S6010 */ - { { 0x63, 0x02, 0x3c }, 0x8f, 0x8f, ALPS_WHEEL }, /* Toshiba Satellite S2400-103 */ - { { 0x63, 0x02, 0x50 }, 0xef, 0xef, ALPS_FW_BK_1 }, /* NEC Versa L320 */ + { { 0x63, 0x02, 0x28 }, 0xf8, 0xf8, ALPS_FW_BK_2 }, /* Fujitsu Siemens S6010 */ + { { 0x63, 0x02, 0x3c }, 0x8f, 0x8f, ALPS_WHEEL }, /* Toshiba Satellite S2400-103 */ + { { 0x63, 0x02, 0x50 }, 0xef, 0xef, ALPS_FW_BK_1 }, /* NEC Versa L320 */ { { 0x63, 0x02, 0x64 }, 0xf8, 0xf8, 0 }, - { { 0x63, 0x03, 0xc8 }, 0xf8, 0xf8, ALPS_PASS }, /* Dell Latitude D800 */ - { { 0x73, 0x00, 0x0a }, 0xf8, 0xf8, ALPS_DUALPOINT }, /* ThinkPad R61 8918-5QG */ + { { 0x63, 0x03, 0xc8 }, 0xf8, 0xf8, ALPS_PASS | ALPS_DUALPOINT }, /* Dell Latitude D800 */ + { { 0x73, 0x00, 0x0a }, 0xf8, 0xf8, ALPS_DUALPOINT }, /* ThinkPad R61 8918-5QG */ { { 0x73, 0x02, 0x0a }, 0xf8, 0xf8, 0 }, - { { 0x73, 0x02, 0x14 }, 0xf8, 0xf8, ALPS_FW_BK_2 }, /* Ahtec Laptop */ + { { 0x73, 0x02, 0x14 }, 0xf8, 0xf8, ALPS_FW_BK_2 }, /* Ahtec Laptop */ { { 0x20, 0x02, 0x0e }, 0xf8, 0xf8, ALPS_PASS | ALPS_DUALPOINT }, /* XXX */ { { 0x22, 0x02, 0x0a }, 0xf8, 0xf8, ALPS_PASS | ALPS_DUALPOINT }, { { 0x22, 0x02, 0x14 }, 0xff, 0xff, ALPS_PASS | ALPS_DUALPOINT }, /* Dell Latitude D600 */ { { 0x62, 0x02, 0x14 }, 0xcf, 0xcf, ALPS_PASS | ALPS_DUALPOINT }, /* Dell Latitude E6500 */ - { { 0x73, 0x02, 0x50 }, 0xcf, 0xcf, ALPS_FW_BK_1 } /* Dell Vostro 1400 */ + { { 0x73, 0x02, 0x50 }, 0xcf, 0xcf, ALPS_FW_BK_1 }, /* Dell Vostro 1400 */ }; /* @@ -132,18 +132,23 @@ static void alps_process_packet(struct psmouse *psmouse) ges = packet[2] & 1; fin = packet[2] & 2; - input_report_key(dev, BTN_LEFT, left); - input_report_key(dev, BTN_RIGHT, right); - input_report_key(dev, BTN_MIDDLE, middle); - if ((priv->i->flags & ALPS_DUALPOINT) && z == 127) { input_report_rel(dev2, REL_X, (x > 383 ? (x - 768) : x)); input_report_rel(dev2, REL_Y, -(y > 255 ? (y - 512) : y)); + + input_report_key(dev2, BTN_LEFT, left); + input_report_key(dev2, BTN_RIGHT, right); + input_report_key(dev2, BTN_MIDDLE, middle); + input_sync(dev); input_sync(dev2); return; } + input_report_key(dev, BTN_LEFT, left); + input_report_key(dev, BTN_RIGHT, right); + input_report_key(dev, BTN_MIDDLE, middle); + /* Convert hardware tap to a reasonable Z value */ if (ges && !fin) z = 40; diff --git a/drivers/input/mouse/appletouch.c b/drivers/input/mouse/appletouch.c index e0140fd..908b5b4 100644 --- a/drivers/input/mouse/appletouch.c +++ b/drivers/input/mouse/appletouch.c @@ -361,7 +361,7 @@ static int atp_calculate_abs(int *xy_sensors, int nb_sensors, int fact, (!is_increasing && xy_sensors[i - 1] < xy_sensors[i])) { (*fingers)++; is_increasing = 1; - } else if (i > 0 && xy_sensors[i - 1] >= xy_sensors[i]) { + } else if (i > 0 && (xy_sensors[i - 1] - xy_sensors[i] > threshold)) { is_increasing = 0; } diff --git a/drivers/input/mouse/lifebook.c b/drivers/input/mouse/lifebook.c index 15ac320..dcd4236 100644 --- a/drivers/input/mouse/lifebook.c +++ b/drivers/input/mouse/lifebook.c @@ -159,21 +159,22 @@ static psmouse_ret_t lifebook_process_byte(struct psmouse *psmouse) if (!dev2) printk(KERN_WARNING "lifebook.c: got relative packet " "but no relative device set up\n"); - } else if (lifebook_use_6byte_proto) { - input_report_abs(dev1, ABS_X, - ((packet[1] & 0x3f) << 6) | (packet[2] & 0x3f)); - input_report_abs(dev1, ABS_Y, - 4096 - (((packet[4] & 0x3f) << 6) | (packet[5] & 0x3f))); } else { - input_report_abs(dev1, ABS_X, - (packet[1] | ((packet[0] & 0x30) << 4))); - input_report_abs(dev1, ABS_Y, - 1024 - (packet[2] | ((packet[0] & 0xC0) << 2))); + if (lifebook_use_6byte_proto) { + input_report_abs(dev1, ABS_X, + ((packet[1] & 0x3f) << 6) | (packet[2] & 0x3f)); + input_report_abs(dev1, ABS_Y, + 4096 - (((packet[4] & 0x3f) << 6) | (packet[5] & 0x3f))); + } else { + input_report_abs(dev1, ABS_X, + (packet[1] | ((packet[0] & 0x30) << 4))); + input_report_abs(dev1, ABS_Y, + 1024 - (packet[2] | ((packet[0] & 0xC0) << 2))); + } + input_report_key(dev1, BTN_TOUCH, packet[0] & 0x04); + input_sync(dev1); } - input_report_key(dev1, BTN_TOUCH, packet[0] & 0x04); - input_sync(dev1); - if (dev2) { if (relative_packet) { input_report_rel(dev2, REL_X, diff --git a/drivers/input/mouse/psmouse-base.c b/drivers/input/mouse/psmouse-base.c index f8f86de..b407b35 100644 --- a/drivers/input/mouse/psmouse-base.c +++ b/drivers/input/mouse/psmouse-base.c @@ -327,7 +327,9 @@ static irqreturn_t psmouse_interrupt(struct serio *serio, goto out; } - if (psmouse->packet[1] == PSMOUSE_RET_ID) { + if (psmouse->packet[1] == PSMOUSE_RET_ID || + (psmouse->type == PSMOUSE_HGPK && + psmouse->packet[1] == PSMOUSE_RET_BAT)) { __psmouse_set_state(psmouse, PSMOUSE_IGNORE); serio_reconnect(serio); goto out; diff --git a/drivers/input/mouse/synaptics.c b/drivers/input/mouse/synaptics.c index f3e4f7b..19984bf 100644 --- a/drivers/input/mouse/synaptics.c +++ b/drivers/input/mouse/synaptics.c @@ -180,6 +180,29 @@ static int synaptics_identify(struct psmouse *psmouse) return -1; } +/* + * Read touchpad resolution + * Resolution is left zero if touchpad does not support the query + */ +static int synaptics_resolution(struct psmouse *psmouse) +{ + struct synaptics_data *priv = psmouse->private; + unsigned char res[3]; + + if (SYN_ID_MAJOR(priv->identity) < 4) + return 0; + + if (synaptics_send_cmd(psmouse, SYN_QUE_RESOLUTION, res)) + return 0; + + if ((res[0] != 0) && (res[1] & 0x80) && (res[2] != 0)) { + priv->x_res = res[0]; /* x resolution in units/mm */ + priv->y_res = res[2]; /* y resolution in units/mm */ + } + + return 0; +} + static int synaptics_query_hardware(struct psmouse *psmouse) { if (synaptics_identify(psmouse)) @@ -188,6 +211,8 @@ static int synaptics_query_hardware(struct psmouse *psmouse) return -1; if (synaptics_capability(psmouse)) return -1; + if (synaptics_resolution(psmouse)) + return -1; return 0; } @@ -563,6 +588,9 @@ static void set_input_params(struct input_dev *dev, struct synaptics_data *priv) clear_bit(EV_REL, dev->evbit); clear_bit(REL_X, dev->relbit); clear_bit(REL_Y, dev->relbit); + + dev->absres[ABS_X] = priv->x_res; + dev->absres[ABS_Y] = priv->y_res; } static void synaptics_disconnect(struct psmouse *psmouse) diff --git a/drivers/input/mouse/synaptics.h b/drivers/input/mouse/synaptics.h index 02aa4cf..3023821 100644 --- a/drivers/input/mouse/synaptics.h +++ b/drivers/input/mouse/synaptics.h @@ -97,6 +97,8 @@ struct synaptics_data { unsigned long int capabilities; /* Capabilities */ unsigned long int ext_cap; /* Extended Capabilities */ unsigned long int identity; /* Identification */ + int x_res; /* X resolution in units/mm */ + int y_res; /* Y resolution in units/mm */ unsigned char pkt_type; /* packet type - old, new, etc */ unsigned char mode; /* current mode byte */ diff --git a/drivers/input/mouse/synaptics_i2c.c b/drivers/input/mouse/synaptics_i2c.c new file mode 100644 index 0000000..eac9fdd --- /dev/null +++ b/drivers/input/mouse/synaptics_i2c.c @@ -0,0 +1,676 @@ +/* + * Synaptics touchpad with I2C interface + * + * Copyright (C) 2009 Compulab, Ltd. + * Mike Rapoport <mike@compulab.co.il> + * Igor Grinberg <grinberg@compulab.co.il> + * + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file COPYING in the main directory of this archive for + * more details. + */ + +#include <linux/module.h> +#include <linux/i2c.h> +#include <linux/irq.h> +#include <linux/interrupt.h> +#include <linux/input.h> +#include <linux/delay.h> +#include <linux/workqueue.h> + +#define DRIVER_NAME "synaptics_i2c" +/* maximum product id is 15 characters */ +#define PRODUCT_ID_LENGTH 15 +#define REGISTER_LENGTH 8 + +/* + * after soft reset, we should wait for 1 ms + * before the device becomes operational + */ +#define SOFT_RESET_DELAY_MS 3 +/* and after hard reset, we should wait for max 500ms */ +#define HARD_RESET_DELAY_MS 500 + +/* Registers by SMBus address */ +#define PAGE_SEL_REG 0xff +#define DEVICE_STATUS_REG 0x09 + +/* Registers by RMI address */ +#define DEV_CONTROL_REG 0x0000 +#define INTERRUPT_EN_REG 0x0001 +#define ERR_STAT_REG 0x0002 +#define INT_REQ_STAT_REG 0x0003 +#define DEV_COMMAND_REG 0x0004 + +#define RMI_PROT_VER_REG 0x0200 +#define MANUFACT_ID_REG 0x0201 +#define PHYS_INT_VER_REG 0x0202 +#define PROD_PROPERTY_REG 0x0203 +#define INFO_QUERY_REG0 0x0204 +#define INFO_QUERY_REG1 (INFO_QUERY_REG0 + 1) +#define INFO_QUERY_REG2 (INFO_QUERY_REG0 + 2) +#define INFO_QUERY_REG3 (INFO_QUERY_REG0 + 3) + +#define PRODUCT_ID_REG0 0x0210 +#define PRODUCT_ID_REG1 (PRODUCT_ID_REG0 + 1) +#define PRODUCT_ID_REG2 (PRODUCT_ID_REG0 + 2) +#define PRODUCT_ID_REG3 (PRODUCT_ID_REG0 + 3) +#define PRODUCT_ID_REG4 (PRODUCT_ID_REG0 + 4) +#define PRODUCT_ID_REG5 (PRODUCT_ID_REG0 + 5) +#define PRODUCT_ID_REG6 (PRODUCT_ID_REG0 + 6) +#define PRODUCT_ID_REG7 (PRODUCT_ID_REG0 + 7) +#define PRODUCT_ID_REG8 (PRODUCT_ID_REG0 + 8) +#define PRODUCT_ID_REG9 (PRODUCT_ID_REG0 + 9) +#define PRODUCT_ID_REG10 (PRODUCT_ID_REG0 + 10) +#define PRODUCT_ID_REG11 (PRODUCT_ID_REG0 + 11) +#define PRODUCT_ID_REG12 (PRODUCT_ID_REG0 + 12) +#define PRODUCT_ID_REG13 (PRODUCT_ID_REG0 + 13) +#define PRODUCT_ID_REG14 (PRODUCT_ID_REG0 + 14) +#define PRODUCT_ID_REG15 (PRODUCT_ID_REG0 + 15) + +#define DATA_REG0 0x0400 +#define ABS_PRESSURE_REG 0x0401 +#define ABS_MSB_X_REG 0x0402 +#define ABS_LSB_X_REG (ABS_MSB_X_REG + 1) +#define ABS_MSB_Y_REG 0x0404 +#define ABS_LSB_Y_REG (ABS_MSB_Y_REG + 1) +#define REL_X_REG 0x0406 +#define REL_Y_REG 0x0407 + +#define DEV_QUERY_REG0 0x1000 +#define DEV_QUERY_REG1 (DEV_QUERY_REG0 + 1) +#define DEV_QUERY_REG2 (DEV_QUERY_REG0 + 2) +#define DEV_QUERY_REG3 (DEV_QUERY_REG0 + 3) +#define DEV_QUERY_REG4 (DEV_QUERY_REG0 + 4) +#define DEV_QUERY_REG5 (DEV_QUERY_REG0 + 5) +#define DEV_QUERY_REG6 (DEV_QUERY_REG0 + 6) +#define DEV_QUERY_REG7 (DEV_QUERY_REG0 + 7) +#define DEV_QUERY_REG8 (DEV_QUERY_REG0 + 8) + +#define GENERAL_2D_CONTROL_REG 0x1041 +#define SENSOR_SENSITIVITY_REG 0x1044 +#define SENS_MAX_POS_MSB_REG 0x1046 +#define SENS_MAX_POS_LSB_REG (SENS_MAX_POS_UPPER_REG + 1) + +/* Register bits */ +/* Device Control Register Bits */ +#define REPORT_RATE_1ST_BIT 6 + +/* Interrupt Enable Register Bits (INTERRUPT_EN_REG) */ +#define F10_ABS_INT_ENA 0 +#define F10_REL_INT_ENA 1 +#define F20_INT_ENA 2 + +/* Interrupt Request Register Bits (INT_REQ_STAT_REG | DEVICE_STATUS_REG) */ +#define F10_ABS_INT_REQ 0 +#define F10_REL_INT_REQ 1 +#define F20_INT_REQ 2 +/* Device Status Register Bits (DEVICE_STATUS_REG) */ +#define STAT_CONFIGURED 6 +#define STAT_ERROR 7 + +/* Device Command Register Bits (DEV_COMMAND_REG) */ +#define RESET_COMMAND 0x01 +#define REZERO_COMMAND 0x02 + +/* Data Register 0 Bits (DATA_REG0) */ +#define GESTURE 3 + +/* Device Query Registers Bits */ +/* DEV_QUERY_REG3 */ +#define HAS_PALM_DETECT 1 +#define HAS_MULTI_FING 2 +#define HAS_SCROLLER 4 +#define HAS_2D_SCROLL 5 + +/* General 2D Control Register Bits (GENERAL_2D_CONTROL_REG) */ +#define NO_DECELERATION 1 +#define REDUCE_REPORTING 3 +#define NO_FILTER 5 + +/* Function Masks */ +/* Device Control Register Masks (DEV_CONTROL_REG) */ +#define REPORT_RATE_MSK 0xc0 +#define SLEEP_MODE_MSK 0x07 + +/* Device Sleep Modes */ +#define FULL_AWAKE 0x0 +#define NORMAL_OP 0x1 +#define LOW_PWR_OP 0x2 +#define VERY_LOW_PWR_OP 0x3 +#define SENS_SLEEP 0x4 +#define SLEEP_MOD 0x5 +#define DEEP_SLEEP 0x6 +#define HIBERNATE 0x7 + +/* Interrupt Register Mask */ +/* (INT_REQ_STAT_REG | DEVICE_STATUS_REG | INTERRUPT_EN_REG) */ +#define INT_ENA_REQ_MSK 0x07 +#define INT_ENA_ABS_MSK 0x01 +#define INT_ENA_REL_MSK 0x02 +#define INT_ENA_F20_MSK 0x04 + +/* Device Status Register Masks (DEVICE_STATUS_REG) */ +#define CONFIGURED_MSK 0x40 +#define ERROR_MSK 0x80 + +/* Data Register 0 Masks */ +#define FINGER_WIDTH_MSK 0xf0 +#define GESTURE_MSK 0x08 +#define SENSOR_STATUS_MSK 0x07 + +/* + * MSB Position Register Masks + * ABS_MSB_X_REG | ABS_MSB_Y_REG | SENS_MAX_POS_MSB_REG | + * DEV_QUERY_REG3 | DEV_QUERY_REG5 + */ +#define MSB_POSITION_MSK 0x1f + +/* Device Query Registers Masks */ + +/* DEV_QUERY_REG2 */ +#define NUM_EXTRA_POS_MSK 0x07 + +/* When in IRQ mode read the device every THREAD_IRQ_SLEEP_SECS */ +#define THREAD_IRQ_SLEEP_SECS 2 +#define THREAD_IRQ_SLEEP_MSECS (THREAD_IRQ_SLEEP_SECS * MSEC_PER_SEC) + +/* + * When in Polling mode and no data received for NO_DATA_THRES msecs + * reduce the polling rate to NO_DATA_SLEEP_MSECS + */ +#define NO_DATA_THRES (MSEC_PER_SEC) +#define NO_DATA_SLEEP_MSECS (MSEC_PER_SEC / 4) + +/* Control touchpad's No Deceleration option */ +static int no_decel = 1; +module_param(no_decel, bool, 0644); +MODULE_PARM_DESC(no_decel, "No Deceleration. Default = 1 (on)"); + +/* Control touchpad's Reduced Reporting option */ +static int reduce_report; +module_param(reduce_report, bool, 0644); +MODULE_PARM_DESC(reduce_report, "Reduced Reporting. Default = 0 (off)"); + +/* Control touchpad's No Filter option */ +static int no_filter; +module_param(no_filter, bool, 0644); +MODULE_PARM_DESC(no_filter, "No Filter. Default = 0 (off)"); + +/* + * touchpad Attention line is Active Low and Open Drain, + * therefore should be connected to pulled up line + * and the irq configuration should be set to Falling Edge Trigger + */ +/* Control IRQ / Polling option */ +static int polling_req; +module_param(polling_req, bool, 0444); +MODULE_PARM_DESC(polling_req, "Request Polling. Default = 0 (use irq)"); + +/* Control Polling Rate */ +static int scan_rate = 80; +module_param(scan_rate, int, 0644); +MODULE_PARM_DESC(scan_rate, "Polling rate in times/sec. Default = 80"); + +/* The main device structure */ +struct synaptics_i2c { + struct i2c_client *client; + struct input_dev *input; + struct delayed_work dwork; + int no_data_count; + int no_decel_param; + int reduce_report_param; + int no_filter_param; + int scan_rate_param; + int scan_ms; +}; + +static inline void set_scan_rate(struct synaptics_i2c *touch, int scan_rate) +{ + touch->scan_ms = MSEC_PER_SEC / scan_rate; + touch->scan_rate_param = scan_rate; +} + +/* + * Driver's initial design makes no race condition possible on i2c bus, + * so there is no need in any locking. + * Keep it in mind, while playing with the code. + */ +static s32 synaptics_i2c_reg_get(struct i2c_client *client, u16 reg) +{ + int ret; + + ret = i2c_smbus_write_byte_data(client, PAGE_SEL_REG, reg >> 8); + if (ret == 0) + ret = i2c_smbus_read_byte_data(client, reg & 0xff); + + return ret; +} + +static s32 synaptics_i2c_reg_set(struct i2c_client *client, u16 reg, u8 val) +{ + int ret; + + ret = i2c_smbus_write_byte_data(client, PAGE_SEL_REG, reg >> 8); + if (ret == 0) + ret = i2c_smbus_write_byte_data(client, reg & 0xff, val); + + return ret; +} + +static s32 synaptics_i2c_word_get(struct i2c_client *client, u16 reg) +{ + int ret; + + ret = i2c_smbus_write_byte_data(client, PAGE_SEL_REG, reg >> 8); + if (ret == 0) + ret = i2c_smbus_read_word_data(client, reg & 0xff); + + return ret; +} + +static int synaptics_i2c_config(struct i2c_client *client) +{ + int ret, control; + u8 int_en; + + /* set Report Rate to Device Highest (>=80) and Sleep to normal */ + ret = synaptics_i2c_reg_set(client, DEV_CONTROL_REG, 0xc1); + if (ret) + return ret; + + /* set Interrupt Disable to Func20 / Enable to Func10) */ + int_en = (polling_req) ? 0 : INT_ENA_ABS_MSK | INT_ENA_REL_MSK; + ret = synaptics_i2c_reg_set(client, INTERRUPT_EN_REG, int_en); + if (ret) + return ret; + + control = synaptics_i2c_reg_get(client, GENERAL_2D_CONTROL_REG); + /* No Deceleration */ + control |= no_decel ? 1 << NO_DECELERATION : 0; + /* Reduced Reporting */ + control |= reduce_report ? 1 << REDUCE_REPORTING : 0; + /* No Filter */ + control |= no_filter ? 1 << NO_FILTER : 0; + ret = synaptics_i2c_reg_set(client, GENERAL_2D_CONTROL_REG, control); + if (ret) + return ret; + + return 0; +} + +static int synaptics_i2c_reset_config(struct i2c_client *client) +{ + int ret; + + /* Reset the Touchpad */ + ret = synaptics_i2c_reg_set(client, DEV_COMMAND_REG, RESET_COMMAND); + if (ret) { + dev_err(&client->dev, "Unable to reset device\n"); + } else { + msleep(SOFT_RESET_DELAY_MS); + ret = synaptics_i2c_config(client); + if (ret) + dev_err(&client->dev, "Unable to config device\n"); + } + + return ret; +} + +static int synaptics_i2c_check_error(struct i2c_client *client) +{ + int status, ret = 0; + + status = i2c_smbus_read_byte_data(client, DEVICE_STATUS_REG) & + (CONFIGURED_MSK | ERROR_MSK); + + if (status != CONFIGURED_MSK) + ret = synaptics_i2c_reset_config(client); + + return ret; +} + +static bool synaptics_i2c_get_input(struct synaptics_i2c *touch) +{ + struct input_dev *input = touch->input; + int xy_delta, gesture; + s32 data; + s8 x_delta, y_delta; + + /* Deal with spontanious resets and errors */ + if (synaptics_i2c_check_error(touch->client)) + return 0; + + /* Get Gesture Bit */ + data = synaptics_i2c_reg_get(touch->client, DATA_REG0); + gesture = (data >> GESTURE) & 0x1; + + /* + * Get Relative axes. we have to get them in one shot, + * so we get 2 bytes starting from REL_X_REG. + */ + xy_delta = synaptics_i2c_word_get(touch->client, REL_X_REG) & 0xffff; + + /* Separate X from Y */ + x_delta = xy_delta & 0xff; + y_delta = (xy_delta >> REGISTER_LENGTH) & 0xff; + + /* Report the button event */ + input_report_key(input, BTN_LEFT, gesture); + + /* Report the deltas */ + input_report_rel(input, REL_X, x_delta); + input_report_rel(input, REL_Y, -y_delta); + input_sync(input); + + return xy_delta || gesture; +} + +static irqreturn_t synaptics_i2c_irq(int irq, void *dev_id) +{ + struct synaptics_i2c *touch = dev_id; + + /* + * We want to have the work run immediately but it might have + * already been scheduled with a delay, that's why we have to + * cancel it first. + */ + cancel_delayed_work(&touch->dwork); + schedule_delayed_work(&touch->dwork, 0); + + return IRQ_HANDLED; +} + +static void synaptics_i2c_check_params(struct synaptics_i2c *touch) +{ + bool reset = false; + + if (scan_rate != touch->scan_rate_param) + set_scan_rate(touch, scan_rate); + + if (no_decel != touch->no_decel_param) { + touch->no_decel_param = no_decel; + reset = true; + } + + if (no_filter != touch->no_filter_param) { + touch->no_filter_param = no_filter; + reset = true; + } + + if (reduce_report != touch->reduce_report_param) { + touch->reduce_report_param = reduce_report; + reset = true; + } + + if (reset) + synaptics_i2c_reset_config(touch->client); +} + +/* Control the Device polling rate / Work Handler sleep time */ +unsigned long synaptics_i2c_adjust_delay(struct synaptics_i2c *touch, + bool have_data) +{ + unsigned long delay, nodata_count_thres; + + if (polling_req) { + delay = touch->scan_ms; + if (have_data) { + touch->no_data_count = 0; + } else { + nodata_count_thres = NO_DATA_THRES / touch->scan_ms; + if (touch->no_data_count < nodata_count_thres) + touch->no_data_count++; + else + delay = NO_DATA_SLEEP_MSECS; + } + return msecs_to_jiffies(delay); + } else { + delay = msecs_to_jiffies(THREAD_IRQ_SLEEP_MSECS); + return round_jiffies_relative(delay); + } +} + +/* Work Handler */ +static void synaptics_i2c_work_handler(struct work_struct *work) +{ + bool have_data; + struct synaptics_i2c *touch = + container_of(work, struct synaptics_i2c, dwork.work); + unsigned long delay; + + synaptics_i2c_check_params(touch); + + have_data = synaptics_i2c_get_input(touch); + delay = synaptics_i2c_adjust_delay(touch, have_data); + + /* + * While interrupt driven, there is no real need to poll the device. + * But touchpads are very sensitive, so there could be errors + * related to physical environment and the attention line isn't + * neccesarily asserted. In such case we can lose the touchpad. + * We poll the device once in THREAD_IRQ_SLEEP_SECS and + * if error is detected, we try to reset and reconfigure the touchpad. + */ + schedule_delayed_work(&touch->dwork, delay); +} + +static int synaptics_i2c_open(struct input_dev *input) +{ + struct synaptics_i2c *touch = input_get_drvdata(input); + int ret; + + ret = synaptics_i2c_reset_config(touch->client); + if (ret) + return ret; + + if (polling_req) + schedule_delayed_work(&touch->dwork, + msecs_to_jiffies(NO_DATA_SLEEP_MSECS)); + + return 0; +} + +static void synaptics_i2c_close(struct input_dev *input) +{ + struct synaptics_i2c *touch = input_get_drvdata(input); + + if (!polling_req) + synaptics_i2c_reg_set(touch->client, INTERRUPT_EN_REG, 0); + + cancel_delayed_work_sync(&touch->dwork); + + /* Save some power */ + synaptics_i2c_reg_set(touch->client, DEV_CONTROL_REG, DEEP_SLEEP); +} + +static void synaptics_i2c_set_input_params(struct synaptics_i2c *touch) +{ + struct input_dev *input = touch->input; + + input->name = touch->client->name; + input->phys = touch->client->adapter->name; + input->id.bustype = BUS_I2C; + input->id.version = synaptics_i2c_word_get(touch->client, + INFO_QUERY_REG0); + input->dev.parent = &touch->client->dev; + input->open = synaptics_i2c_open; + input->close = synaptics_i2c_close; + input_set_drvdata(input, touch); + + /* Register the device as mouse */ + __set_bit(EV_REL, input->evbit); + __set_bit(REL_X, input->relbit); + __set_bit(REL_Y, input->relbit); + + /* Register device's buttons and keys */ + __set_bit(EV_KEY, input->evbit); + __set_bit(BTN_LEFT, input->keybit); +} + +struct synaptics_i2c *synaptics_i2c_touch_create(struct i2c_client *client) +{ + struct synaptics_i2c *touch; + + touch = kzalloc(sizeof(struct synaptics_i2c), GFP_KERNEL); + if (!touch) + return NULL; + + touch->client = client; + touch->no_decel_param = no_decel; + touch->scan_rate_param = scan_rate; + set_scan_rate(touch, scan_rate); + INIT_DELAYED_WORK(&touch->dwork, synaptics_i2c_work_handler); + + return touch; +} + +static int __devinit synaptics_i2c_probe(struct i2c_client *client, + const struct i2c_device_id *dev_id) +{ + int ret; + struct synaptics_i2c *touch; + + touch = synaptics_i2c_touch_create(client); + if (!touch) + return -ENOMEM; + + i2c_set_clientdata(client, touch); + + ret = synaptics_i2c_reset_config(client); + if (ret) + goto err_mem_free; + + if (client->irq < 1) + polling_req = 1; + + touch->input = input_allocate_device(); + if (!touch->input) { + ret = -ENOMEM; + goto err_mem_free; + } + + synaptics_i2c_set_input_params(touch); + + if (!polling_req) { + dev_dbg(&touch->client->dev, + "Requesting IRQ: %d\n", touch->client->irq); + + ret = request_irq(touch->client->irq, synaptics_i2c_irq, + IRQF_DISABLED|IRQ_TYPE_EDGE_FALLING, + DRIVER_NAME, touch); + if (ret) { + dev_warn(&touch->client->dev, + "IRQ request failed: %d, " + "falling back to polling\n", ret); + polling_req = 1; + synaptics_i2c_reg_set(touch->client, + INTERRUPT_EN_REG, 0); + } + } + + if (polling_req) + dev_dbg(&touch->client->dev, + "Using polling at rate: %d times/sec\n", scan_rate); + + /* Register the device in input subsystem */ + ret = input_register_device(touch->input); + if (ret) { + dev_err(&client->dev, + "Input device register failed: %d\n", ret); + goto err_input_free; + } + return 0; + +err_input_free: + input_free_device(touch->input); +err_mem_free: + i2c_set_clientdata(client, NULL); + kfree(touch); + + return ret; +} + +static int __devexit synaptics_i2c_remove(struct i2c_client *client) +{ + struct synaptics_i2c *touch = i2c_get_clientdata(client); + + if (!polling_req) + free_irq(touch->client->irq, touch); + + input_unregister_device(touch->input); + i2c_set_clientdata(client, NULL); + kfree(touch); + + return 0; +} + +#ifdef CONFIG_PM +static int synaptics_i2c_suspend(struct i2c_client *client, pm_message_t mesg) +{ + struct synaptics_i2c *touch = i2c_get_clientdata(client); + + cancel_delayed_work_sync(&touch->dwork); + + /* Save some power */ + synaptics_i2c_reg_set(touch->client, DEV_CONTROL_REG, DEEP_SLEEP); + + return 0; +} + +static int synaptics_i2c_resume(struct i2c_client *client) +{ + int ret; + struct synaptics_i2c *touch = i2c_get_clientdata(client); + + ret = synaptics_i2c_reset_config(client); + if (ret) + return ret; + + schedule_delayed_work(&touch->dwork, + msecs_to_jiffies(NO_DATA_SLEEP_MSECS)); + + return 0; +} +#else +#define synaptics_i2c_suspend NULL +#define synaptics_i2c_resume NULL +#endif + +static const struct i2c_device_id synaptics_i2c_id_table[] = { + { "synaptics_i2c", 0 }, + { }, +}; +MODULE_DEVICE_TABLE(i2c, synaptics_i2c_id_table); + +static struct i2c_driver synaptics_i2c_driver = { + .driver = { + .name = DRIVER_NAME, + .owner = THIS_MODULE, + }, + + .probe = synaptics_i2c_probe, + .remove = __devexit_p(synaptics_i2c_remove), + + .suspend = synaptics_i2c_suspend, + .resume = synaptics_i2c_resume, + .id_table = synaptics_i2c_id_table, +}; + +static int __init synaptics_i2c_init(void) +{ + return i2c_add_driver(&synaptics_i2c_driver); +} + +static void __exit synaptics_i2c_exit(void) +{ + i2c_del_driver(&synaptics_i2c_driver); +} + +module_init(synaptics_i2c_init); +module_exit(synaptics_i2c_exit); + +MODULE_DESCRIPTION("Synaptics I2C touchpad driver"); +MODULE_AUTHOR("Mike Rapoport, Igor Grinberg, Compulab"); +MODULE_LICENSE("GPL"); + diff --git a/drivers/input/mousedev.c b/drivers/input/mousedev.c index 17fd6d4..966b886 100644 --- a/drivers/input/mousedev.c +++ b/drivers/input/mousedev.c @@ -60,7 +60,6 @@ struct mousedev { int exist; int open; int minor; - char name[16]; struct input_handle handle; wait_queue_head_t wait; struct list_head client_list; @@ -863,19 +862,17 @@ static struct mousedev *mousedev_create(struct input_dev *dev, init_waitqueue_head(&mousedev->wait); if (minor == MOUSEDEV_MIX) - strlcpy(mousedev->name, "mice", sizeof(mousedev->name)); + dev_set_name(&mousedev->dev, "mice"); else - snprintf(mousedev->name, sizeof(mousedev->name), - "mouse%d", minor); + dev_set_name(&mousedev->dev, "mouse%d", minor); mousedev->minor = minor; mousedev->exist = 1; mousedev->handle.dev = input_get_device(dev); - mousedev->handle.name = mousedev->name; + mousedev->handle.name = dev_name(&mousedev->dev); mousedev->handle.handler = handler; mousedev->handle.private = mousedev; - dev_set_name(&mousedev->dev, mousedev->name); mousedev->dev.class = &input_class; if (dev) mousedev->dev.parent = &dev->dev; diff --git a/drivers/input/serio/i8042.c b/drivers/input/serio/i8042.c index 3cffb70..f919bf5 100644 --- a/drivers/input/serio/i8042.c +++ b/drivers/input/serio/i8042.c @@ -10,6 +10,7 @@ * the Free Software Foundation. */ +#include <linux/types.h> #include <linux/delay.h> #include <linux/module.h> #include <linux/interrupt.h> @@ -921,6 +922,9 @@ static void i8042_dritek_enable(void) #endif #ifdef CONFIG_PM + +static bool i8042_suspended; + /* * Here we try to restore the original BIOS settings. We only want to * do that once, when we really suspend, not when we taking memory @@ -930,11 +934,9 @@ static void i8042_dritek_enable(void) static int i8042_suspend(struct platform_device *dev, pm_message_t state) { - if (dev->dev.power.power_state.event != state.event) { - if (state.event == PM_EVENT_SUSPEND) - i8042_controller_reset(); - - dev->dev.power.power_state = state; + if (!i8042_suspended && state.event == PM_EVENT_SUSPEND) { + i8042_controller_reset(); + i8042_suspended = true; } return 0; @@ -952,7 +954,7 @@ static int i8042_resume(struct platform_device *dev) /* * Do not bother with restoring state if we haven't suspened yet */ - if (dev->dev.power.power_state.event == PM_EVENT_ON) + if (!i8042_suspended) return 0; error = i8042_controller_check(); @@ -998,10 +1000,9 @@ static int i8042_resume(struct platform_device *dev) if (i8042_ports[I8042_KBD_PORT_NO].serio) i8042_enable_kbd_port(); + i8042_suspended = false; i8042_interrupt(0, NULL); - dev->dev.power.power_state = PMSG_ON; - return 0; } #endif /* CONFIG_PM */ diff --git a/drivers/input/serio/serio.c b/drivers/input/serio/serio.c index bc03325..fb17573 100644 --- a/drivers/input/serio/serio.c +++ b/drivers/input/serio/serio.c @@ -41,17 +41,6 @@ MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>"); MODULE_DESCRIPTION("Serio abstraction core"); MODULE_LICENSE("GPL"); -EXPORT_SYMBOL(serio_interrupt); -EXPORT_SYMBOL(__serio_register_port); -EXPORT_SYMBOL(serio_unregister_port); -EXPORT_SYMBOL(serio_unregister_child_port); -EXPORT_SYMBOL(__serio_register_driver); -EXPORT_SYMBOL(serio_unregister_driver); -EXPORT_SYMBOL(serio_open); -EXPORT_SYMBOL(serio_close); -EXPORT_SYMBOL(serio_rescan); -EXPORT_SYMBOL(serio_reconnect); - /* * serio_mutex protects entire serio subsystem and is taken every time * serio port or driver registrered or unregistered. @@ -506,9 +495,9 @@ static ssize_t serio_set_bind_mode(struct device *dev, struct device_attribute * retval = count; if (!strncmp(buf, "manual", count)) { - serio->manual_bind = 1; + serio->manual_bind = true; } else if (!strncmp(buf, "auto", count)) { - serio->manual_bind = 0; + serio->manual_bind = false; } else { retval = -EINVAL; } @@ -581,7 +570,7 @@ static void serio_add_port(struct serio *serio) "serio: device_add() failed for %s (%s), error: %d\n", serio->phys, serio->name, error); else { - serio->registered = 1; + serio->registered = true; error = sysfs_create_group(&serio->dev.kobj, &serio_id_attr_group); if (error) printk(KERN_ERR @@ -617,7 +606,7 @@ static void serio_destroy_port(struct serio *serio) if (serio->registered) { sysfs_remove_group(&serio->dev.kobj, &serio_id_attr_group); device_del(&serio->dev); - serio->registered = 0; + serio->registered = false; } list_del_init(&serio->node); @@ -692,11 +681,13 @@ void serio_rescan(struct serio *serio) { serio_queue_event(serio, NULL, SERIO_RESCAN_PORT); } +EXPORT_SYMBOL(serio_rescan); void serio_reconnect(struct serio *serio) { serio_queue_event(serio, NULL, SERIO_RECONNECT_CHAIN); } +EXPORT_SYMBOL(serio_reconnect); /* * Submits register request to kseriod for subsequent execution. @@ -707,6 +698,7 @@ void __serio_register_port(struct serio *serio, struct module *owner) serio_init_port(serio); serio_queue_event(serio, owner, SERIO_REGISTER_PORT); } +EXPORT_SYMBOL(__serio_register_port); /* * Synchronously unregisters serio port. @@ -718,6 +710,7 @@ void serio_unregister_port(struct serio *serio) serio_destroy_port(serio); mutex_unlock(&serio_mutex); } +EXPORT_SYMBOL(serio_unregister_port); /* * Safely unregisters child port if one is present. @@ -731,6 +724,7 @@ void serio_unregister_child_port(struct serio *serio) } mutex_unlock(&serio_mutex); } +EXPORT_SYMBOL(serio_unregister_child_port); /* @@ -756,9 +750,9 @@ static ssize_t serio_driver_set_bind_mode(struct device_driver *drv, const char retval = count; if (!strncmp(buf, "manual", count)) { - serio_drv->manual_bind = 1; + serio_drv->manual_bind = true; } else if (!strncmp(buf, "auto", count)) { - serio_drv->manual_bind = 0; + serio_drv->manual_bind = false; } else { retval = -EINVAL; } @@ -818,7 +812,7 @@ static void serio_attach_driver(struct serio_driver *drv) int __serio_register_driver(struct serio_driver *drv, struct module *owner, const char *mod_name) { - int manual_bind = drv->manual_bind; + bool manual_bind = drv->manual_bind; int error; drv->driver.bus = &serio_bus; @@ -829,7 +823,7 @@ int __serio_register_driver(struct serio_driver *drv, struct module *owner, cons * Temporarily disable automatic binding because probing * takes long time and we are better off doing it in kseriod */ - drv->manual_bind = 1; + drv->manual_bind = true; error = driver_register(&drv->driver); if (error) { @@ -844,7 +838,7 @@ int __serio_register_driver(struct serio_driver *drv, struct module *owner, cons * driver to free ports */ if (!manual_bind) { - drv->manual_bind = 0; + drv->manual_bind = false; error = serio_queue_event(drv, NULL, SERIO_ATTACH_DRIVER); if (error) { driver_unregister(&drv->driver); @@ -854,6 +848,7 @@ int __serio_register_driver(struct serio_driver *drv, struct module *owner, cons return 0; } +EXPORT_SYMBOL(__serio_register_driver); void serio_unregister_driver(struct serio_driver *drv) { @@ -861,7 +856,7 @@ void serio_unregister_driver(struct serio_driver *drv) mutex_lock(&serio_mutex); - drv->manual_bind = 1; /* so serio_find_driver ignores it */ + drv->manual_bind = true; /* so serio_find_driver ignores it */ serio_remove_pending_events(drv); start_over: @@ -877,6 +872,7 @@ start_over: driver_unregister(&drv->driver); mutex_unlock(&serio_mutex); } +EXPORT_SYMBOL(serio_unregister_driver); static void serio_set_drv(struct serio *serio, struct serio_driver *drv) { @@ -937,11 +933,11 @@ static int serio_uevent(struct device *dev, struct kobj_uevent_env *env) #ifdef CONFIG_PM static int serio_suspend(struct device *dev, pm_message_t state) { - if (dev->power.power_state.event != state.event) { - if (state.event == PM_EVENT_SUSPEND) - serio_cleanup(to_serio_port(dev)); + struct serio *serio = to_serio_port(dev); - dev->power.power_state = state; + if (!serio->suspended && state.event == PM_EVENT_SUSPEND) { + serio_cleanup(serio); + serio->suspended = true; } return 0; @@ -949,14 +945,15 @@ static int serio_suspend(struct device *dev, pm_message_t state) static int serio_resume(struct device *dev) { + struct serio *serio = to_serio_port(dev); + /* * Driver reconnect can take a while, so better let kseriod * deal with it. */ - if (dev->power.power_state.event != PM_EVENT_ON) { - dev->power.power_state = PMSG_ON; - serio_queue_event(to_serio_port(dev), NULL, - SERIO_RECONNECT_PORT); + if (serio->suspended) { + serio->suspended = false; + serio_queue_event(serio, NULL, SERIO_RECONNECT_PORT); } return 0; @@ -974,6 +971,7 @@ int serio_open(struct serio *serio, struct serio_driver *drv) } return 0; } +EXPORT_SYMBOL(serio_open); /* called from serio_driver->connect/disconnect methods under serio_mutex */ void serio_close(struct serio *serio) @@ -983,6 +981,7 @@ void serio_close(struct serio *serio) serio_set_drv(serio, NULL); } +EXPORT_SYMBOL(serio_close); irqreturn_t serio_interrupt(struct serio *serio, unsigned char data, unsigned int dfl) @@ -1003,6 +1002,7 @@ irqreturn_t serio_interrupt(struct serio *serio, return ret; } +EXPORT_SYMBOL(serio_interrupt); static struct bus_type serio_bus = { .name = "serio", diff --git a/drivers/input/tablet/gtco.c b/drivers/input/tablet/gtco.c index 2e18a1c..3d32d3f 100644 --- a/drivers/input/tablet/gtco.c +++ b/drivers/input/tablet/gtco.c @@ -1050,4 +1050,5 @@ static void __exit gtco_exit(void) module_init(gtco_init); module_exit(gtco_exit); +MODULE_DESCRIPTION("GTCO digitizer USB driver"); MODULE_LICENSE("GPL"); diff --git a/drivers/input/tablet/wacom.h b/drivers/input/tablet/wacom.h index 9710bfd..9114ae1 100644 --- a/drivers/input/tablet/wacom.h +++ b/drivers/input/tablet/wacom.h @@ -68,6 +68,7 @@ * v1.48 (pc) - Added support for Bamboo1, BambooFun, and Cintiq 12WX * v1.49 (pc) - Added support for USB Tablet PC (0x90, 0x93, and 0x9A) * v1.50 (pc) - Fixed a TabletPC touch bug in 2.6.28 + * v1.51 (pc) - Added support for Intuos4 */ /* @@ -88,7 +89,7 @@ /* * Version Information */ -#define DRIVER_VERSION "v1.50" +#define DRIVER_VERSION "v1.51" #define DRIVER_AUTHOR "Vojtech Pavlik <vojtech@ucw.cz>" #define DRIVER_DESC "USB Wacom Graphire and Wacom Intuos tablet driver" #define DRIVER_LICENSE "GPL" @@ -128,6 +129,8 @@ extern void input_dev_g(struct input_dev *input_dev, struct wacom_wac *wacom_wac extern void input_dev_i3s(struct input_dev *input_dev, struct wacom_wac *wacom_wac); extern void input_dev_i3(struct input_dev *input_dev, struct wacom_wac *wacom_wac); extern void input_dev_i(struct input_dev *input_dev, struct wacom_wac *wacom_wac); +extern void input_dev_i4s(struct input_dev *input_dev, struct wacom_wac *wacom_wac); +extern void input_dev_i4(struct input_dev *input_dev, struct wacom_wac *wacom_wac); extern void input_dev_pl(struct input_dev *input_dev, struct wacom_wac *wacom_wac); extern void input_dev_pt(struct input_dev *input_dev, struct wacom_wac *wacom_wac); extern void input_dev_mo(struct input_dev *input_dev, struct wacom_wac *wacom_wac); diff --git a/drivers/input/tablet/wacom_sys.c b/drivers/input/tablet/wacom_sys.c index b8624f2..a9d5031 100644 --- a/drivers/input/tablet/wacom_sys.c +++ b/drivers/input/tablet/wacom_sys.c @@ -229,6 +229,19 @@ void input_dev_i3(struct input_dev *input_dev, struct wacom_wac *wacom_wac) input_set_abs_params(input_dev, ABS_RY, 0, 4096, 0, 0); } +void input_dev_i4s(struct input_dev *input_dev, struct wacom_wac *wacom_wac) +{ + input_dev->keybit[BIT_WORD(BTN_DIGI)] |= BIT_MASK(BTN_TOOL_FINGER); + input_dev->keybit[BIT_WORD(BTN_MISC)] |= BIT_MASK(BTN_0) | BIT_MASK(BTN_1) | BIT_MASK(BTN_2) | BIT_MASK(BTN_3); + input_dev->keybit[BIT_WORD(BTN_MISC)] |= BIT_MASK(BTN_4) | BIT_MASK(BTN_5) | BIT_MASK(BTN_6); + input_set_abs_params(input_dev, ABS_Z, -900, 899, 0, 0); +} + +void input_dev_i4(struct input_dev *input_dev, struct wacom_wac *wacom_wac) +{ + input_dev->keybit[BIT_WORD(BTN_MISC)] |= BIT_MASK(BTN_7) | BIT_MASK(BTN_8); +} + void input_dev_bee(struct input_dev *input_dev, struct wacom_wac *wacom_wac) { input_dev->keybit[BIT_WORD(BTN_MISC)] |= BIT_MASK(BTN_8) | BIT_MASK(BTN_9); diff --git a/drivers/input/tablet/wacom_wac.c b/drivers/input/tablet/wacom_wac.c index 2638811..38bf863 100644 --- a/drivers/input/tablet/wacom_wac.c +++ b/drivers/input/tablet/wacom_wac.c @@ -283,10 +283,11 @@ static int wacom_graphire_irq(struct wacom_wac *wacom, void *wcombo) static int wacom_intuos_inout(struct wacom_wac *wacom, void *wcombo) { unsigned char *data = wacom->data; - int idx; + int idx = 0; /* tool number */ - idx = data[1] & 0x01; + if (wacom->features->type == INTUOS) + idx = data[1] & 0x01; /* Enter report */ if ((data[1] & 0xfc) == 0xc0) { @@ -299,6 +300,7 @@ static int wacom_intuos_inout(struct wacom_wac *wacom, void *wcombo) switch (wacom->id[idx]) { case 0x812: /* Inking pen */ case 0x801: /* Intuos3 Inking pen */ + case 0x20802: /* Intuos4 Classic Pen */ case 0x012: wacom->tool[idx] = BTN_TOOL_PENCIL; break; @@ -308,6 +310,9 @@ static int wacom_intuos_inout(struct wacom_wac *wacom, void *wcombo) case 0x823: /* Intuos3 Grip Pen */ case 0x813: /* Intuos3 Classic Pen */ case 0x885: /* Intuos3 Marker Pen */ + case 0x802: /* Intuos4 Grip Pen Eraser */ + case 0x804: /* Intuos4 Marker Pen */ + case 0x40802: /* Intuos4 Classic Pen */ case 0x022: wacom->tool[idx] = BTN_TOOL_PEN; break; @@ -319,10 +324,12 @@ static int wacom_intuos_inout(struct wacom_wac *wacom, void *wcombo) case 0x09c: case 0x094: case 0x017: /* Intuos3 2D Mouse */ + case 0x806: /* Intuos4 Mouse */ wacom->tool[idx] = BTN_TOOL_MOUSE; break; case 0x096: /* Lens cursor */ case 0x097: /* Intuos3 Lens cursor */ + case 0x006: /* Intuos4 Lens cursor */ wacom->tool[idx] = BTN_TOOL_LENS; break; case 0x82a: /* Eraser */ @@ -333,12 +340,17 @@ static int wacom_intuos_inout(struct wacom_wac *wacom, void *wcombo) case 0x82b: /* Intuos3 Grip Pen Eraser */ case 0x81b: /* Intuos3 Classic Pen Eraser */ case 0x91b: /* Intuos3 Airbrush Eraser */ + case 0x80c: /* Intuos4 Marker Pen Eraser */ + case 0x80a: /* Intuos4 Grip Pen Eraser */ + case 0x4080a: /* Intuos4 Classic Pen Eraser */ + case 0x90a: /* Intuos4 Airbrush Eraser */ wacom->tool[idx] = BTN_TOOL_RUBBER; break; case 0xd12: case 0x912: case 0x112: case 0x913: /* Intuos3 Airbrush */ + case 0x902: /* Intuos4 Airbrush */ wacom->tool[idx] = BTN_TOOL_AIRBRUSH; break; default: /* Unknown tool */ @@ -349,9 +361,15 @@ static int wacom_intuos_inout(struct wacom_wac *wacom, void *wcombo) /* Exit report */ if ((data[1] & 0xfe) == 0x80) { + /* + * Reset all states otherwise we lose the initial states + * when in-prox next time + */ wacom_report_abs(wcombo, ABS_X, 0); wacom_report_abs(wcombo, ABS_Y, 0); wacom_report_abs(wcombo, ABS_DISTANCE, 0); + wacom_report_abs(wcombo, ABS_TILT_X, 0); + wacom_report_abs(wcombo, ABS_TILT_Y, 0); if (wacom->tool[idx] >= BTN_TOOL_MOUSE) { wacom_report_key(wcombo, BTN_LEFT, 0); wacom_report_key(wcombo, BTN_MIDDLE, 0); @@ -362,8 +380,6 @@ static int wacom_intuos_inout(struct wacom_wac *wacom, void *wcombo) wacom_report_abs(wcombo, ABS_RZ, 0); } else { wacom_report_abs(wcombo, ABS_PRESSURE, 0); - wacom_report_abs(wcombo, ABS_TILT_X, 0); - wacom_report_abs(wcombo, ABS_TILT_Y, 0); wacom_report_key(wcombo, BTN_STYLUS, 0); wacom_report_key(wcombo, BTN_STYLUS2, 0); wacom_report_key(wcombo, BTN_TOUCH, 0); @@ -372,6 +388,7 @@ static int wacom_intuos_inout(struct wacom_wac *wacom, void *wcombo) wacom_report_key(wcombo, wacom->tool[idx], 0); wacom_report_abs(wcombo, ABS_MISC, 0); /* reset tool id */ wacom_input_event(wcombo, EV_MSC, MSC_SERIAL, wacom->serial[idx]); + wacom->id[idx] = 0; return 2; } return 0; @@ -385,6 +402,8 @@ static void wacom_intuos_general(struct wacom_wac *wacom, void *wcombo) /* general pen packet */ if ((data[1] & 0xb8) == 0xa0) { t = (data[6] << 2) | ((data[7] >> 6) & 3); + if (wacom->features->type >= INTUOS4S && wacom->features->type <= INTUOS4L) + t = (t << 1) | (data[1] & 1); wacom_report_abs(wcombo, ABS_PRESSURE, t); wacom_report_abs(wcombo, ABS_TILT_X, ((data[7] << 1) & 0x7e) | (data[8] >> 7)); @@ -409,7 +428,7 @@ static int wacom_intuos_irq(struct wacom_wac *wacom, void *wcombo) { unsigned char *data = wacom->data; unsigned int t; - int idx, result; + int idx = 0, result; if (data[0] != 2 && data[0] != 5 && data[0] != 6 && data[0] != 12) { dbg("wacom_intuos_irq: received unknown report #%d", data[0]); @@ -417,7 +436,8 @@ static int wacom_intuos_irq(struct wacom_wac *wacom, void *wcombo) } /* tool number */ - idx = data[1] & 0x01; + if (wacom->features->type == INTUOS) + idx = data[1] & 0x01; /* pad packets. Works as a second tool and is always in prox */ if (data[0] == 12) { @@ -425,25 +445,54 @@ static int wacom_intuos_irq(struct wacom_wac *wacom, void *wcombo) if (wacom->tool[1] != BTN_TOOL_FINGER) wacom->tool[1] = BTN_TOOL_FINGER; - wacom_report_key(wcombo, BTN_0, (data[5] & 0x01)); - wacom_report_key(wcombo, BTN_1, (data[5] & 0x02)); - wacom_report_key(wcombo, BTN_2, (data[5] & 0x04)); - wacom_report_key(wcombo, BTN_3, (data[5] & 0x08)); - wacom_report_key(wcombo, BTN_4, (data[6] & 0x01)); - wacom_report_key(wcombo, BTN_5, (data[6] & 0x02)); - wacom_report_key(wcombo, BTN_6, (data[6] & 0x04)); - wacom_report_key(wcombo, BTN_7, (data[6] & 0x08)); - wacom_report_key(wcombo, BTN_8, (data[5] & 0x10)); - wacom_report_key(wcombo, BTN_9, (data[6] & 0x10)); - wacom_report_abs(wcombo, ABS_RX, ((data[1] & 0x1f) << 8) | data[2]); - wacom_report_abs(wcombo, ABS_RY, ((data[3] & 0x1f) << 8) | data[4]); - - if ((data[5] & 0x1f) | (data[6] & 0x1f) | (data[1] & 0x1f) | - data[2] | (data[3] & 0x1f) | data[4]) - wacom_report_key(wcombo, wacom->tool[1], 1); - else - wacom_report_key(wcombo, wacom->tool[1], 0); - wacom_report_abs(wcombo, ABS_MISC, PAD_DEVICE_ID); + if (wacom->features->type >= INTUOS4S && wacom->features->type <= INTUOS4L) { + wacom_report_key(wcombo, BTN_0, (data[2] & 0x01)); + wacom_report_key(wcombo, BTN_1, (data[3] & 0x01)); + wacom_report_key(wcombo, BTN_2, (data[3] & 0x02)); + wacom_report_key(wcombo, BTN_3, (data[3] & 0x04)); + wacom_report_key(wcombo, BTN_4, (data[3] & 0x08)); + wacom_report_key(wcombo, BTN_5, (data[3] & 0x10)); + wacom_report_key(wcombo, BTN_6, (data[3] & 0x20)); + if (data[1] & 0x80) { + wacom_report_abs(wcombo, ABS_WHEEL, (data[1] & 0x7f)); + } else { + /* Out of proximity, clear wheel value. */ + wacom_report_abs(wcombo, ABS_WHEEL, 0); + } + if (wacom->features->type != INTUOS4S) { + wacom_report_key(wcombo, BTN_7, (data[3] & 0x40)); + wacom_report_key(wcombo, BTN_8, (data[3] & 0x80)); + } + if (data[1] | (data[2] & 0x01) | data[3]) { + wacom_report_key(wcombo, wacom->tool[1], 1); + wacom_report_abs(wcombo, ABS_MISC, PAD_DEVICE_ID); + } else { + wacom_report_key(wcombo, wacom->tool[1], 0); + wacom_report_abs(wcombo, ABS_MISC, 0); + } + } else { + wacom_report_key(wcombo, BTN_0, (data[5] & 0x01)); + wacom_report_key(wcombo, BTN_1, (data[5] & 0x02)); + wacom_report_key(wcombo, BTN_2, (data[5] & 0x04)); + wacom_report_key(wcombo, BTN_3, (data[5] & 0x08)); + wacom_report_key(wcombo, BTN_4, (data[6] & 0x01)); + wacom_report_key(wcombo, BTN_5, (data[6] & 0x02)); + wacom_report_key(wcombo, BTN_6, (data[6] & 0x04)); + wacom_report_key(wcombo, BTN_7, (data[6] & 0x08)); + wacom_report_key(wcombo, BTN_8, (data[5] & 0x10)); + wacom_report_key(wcombo, BTN_9, (data[6] & 0x10)); + wacom_report_abs(wcombo, ABS_RX, ((data[1] & 0x1f) << 8) | data[2]); + wacom_report_abs(wcombo, ABS_RY, ((data[3] & 0x1f) << 8) | data[4]); + + if ((data[5] & 0x1f) | (data[6] & 0x1f) | (data[1] & 0x1f) | + data[2] | (data[3] & 0x1f) | data[4]) { + wacom_report_key(wcombo, wacom->tool[1], 1); + wacom_report_abs(wcombo, ABS_MISC, PAD_DEVICE_ID); + } else { + wacom_report_key(wcombo, wacom->tool[1], 0); + wacom_report_abs(wcombo, ABS_MISC, 0); + } + } wacom_input_event(wcombo, EV_MSC, MSC_SERIAL, 0xffffffff); return 1; } @@ -453,10 +502,16 @@ static int wacom_intuos_irq(struct wacom_wac *wacom, void *wcombo) if (result) return result-1; - /* Only large I3 and I1 & I2 support Lense Cursor */ + /* don't proceed if we don't know the ID */ + if (!wacom->id[idx]) + return 0; + + /* Only large Intuos support Lense Cursor */ if ((wacom->tool[idx] == BTN_TOOL_LENS) && ((wacom->features->type == INTUOS3) - || (wacom->features->type == INTUOS3S))) + || (wacom->features->type == INTUOS3S) + || (wacom->features->type == INTUOS4) + || (wacom->features->type == INTUOS4S))) return 0; /* Cintiq doesn't send data when RDY bit isn't set */ @@ -476,8 +531,8 @@ static int wacom_intuos_irq(struct wacom_wac *wacom, void *wcombo) /* process general packets */ wacom_intuos_general(wacom, wcombo); - /* 4D mouse, 2D mouse, marker pen rotation, or Lens cursor packets */ - if ((data[1] & 0xbc) == 0xa8 || (data[1] & 0xbe) == 0xb0) { + /* 4D mouse, 2D mouse, marker pen rotation, tilt mouse, or Lens cursor packets */ + if ((data[1] & 0xbc) == 0xa8 || (data[1] & 0xbe) == 0xb0 || (data[1] & 0xbc) == 0xac) { if (data[1] & 0x02) { /* Rotation packet */ @@ -506,20 +561,36 @@ static int wacom_intuos_irq(struct wacom_wac *wacom, void *wcombo) wacom_report_abs(wcombo, ABS_THROTTLE, (data[8] & 0x08) ? -t : t); } else if (wacom->tool[idx] == BTN_TOOL_MOUSE) { - /* 2D mouse packet */ - wacom_report_key(wcombo, BTN_LEFT, data[8] & 0x04); - wacom_report_key(wcombo, BTN_MIDDLE, data[8] & 0x08); - wacom_report_key(wcombo, BTN_RIGHT, data[8] & 0x10); - wacom_report_rel(wcombo, REL_WHEEL, (data[8] & 0x01) + /* I4 mouse */ + if (wacom->features->type >= INTUOS4S && wacom->features->type <= INTUOS4L) { + wacom_report_key(wcombo, BTN_LEFT, data[6] & 0x01); + wacom_report_key(wcombo, BTN_MIDDLE, data[6] & 0x02); + wacom_report_key(wcombo, BTN_RIGHT, data[6] & 0x04); + wacom_report_rel(wcombo, REL_WHEEL, ((data[7] & 0x80) >> 7) + - ((data[7] & 0x40) >> 6)); + wacom_report_key(wcombo, BTN_SIDE, data[6] & 0x08); + wacom_report_key(wcombo, BTN_EXTRA, data[6] & 0x10); + + wacom_report_abs(wcombo, ABS_TILT_X, + ((data[7] << 1) & 0x7e) | (data[8] >> 7)); + wacom_report_abs(wcombo, ABS_TILT_Y, data[8] & 0x7f); + } else { + /* 2D mouse packet */ + wacom_report_key(wcombo, BTN_LEFT, data[8] & 0x04); + wacom_report_key(wcombo, BTN_MIDDLE, data[8] & 0x08); + wacom_report_key(wcombo, BTN_RIGHT, data[8] & 0x10); + wacom_report_rel(wcombo, REL_WHEEL, (data[8] & 0x01) - ((data[8] & 0x02) >> 1)); - /* I3 2D mouse side buttons */ - if (wacom->features->type >= INTUOS3S && wacom->features->type <= INTUOS3L) { - wacom_report_key(wcombo, BTN_SIDE, data[8] & 0x40); - wacom_report_key(wcombo, BTN_EXTRA, data[8] & 0x20); + /* I3 2D mouse side buttons */ + if (wacom->features->type >= INTUOS3S && wacom->features->type <= INTUOS3L) { + wacom_report_key(wcombo, BTN_SIDE, data[8] & 0x40); + wacom_report_key(wcombo, BTN_EXTRA, data[8] & 0x20); + } } - - } else if (wacom->features->type < INTUOS3S || wacom->features->type == INTUOS3L) { + } else if ((wacom->features->type < INTUOS3S || wacom->features->type == INTUOS3L || + wacom->features->type == INTUOS4L) && + wacom->tool[idx] == BTN_TOOL_LENS) { /* Lens cursor packets */ wacom_report_key(wcombo, BTN_LEFT, data[8] & 0x01); wacom_report_key(wcombo, BTN_MIDDLE, data[8] & 0x02); @@ -581,6 +652,7 @@ static int wacom_tpc_irq(struct wacom_wac *wacom, void *wcombo) } } else if (touchOut || !prox) { /* force touch out-prox */ wacom_report_abs(wcombo, ABS_MISC, TOUCH_DEVICE_ID); + wacom_report_key(wcombo, wacom->tool[1], 0); wacom_report_key(wcombo, BTN_TOUCH, 0); touchOut = 0; touchInProx = 1; @@ -669,6 +741,9 @@ int wacom_wac_irq(struct wacom_wac *wacom_wac, void *wcombo) case INTUOS3S: case INTUOS3: case INTUOS3L: + case INTUOS4S: + case INTUOS4: + case INTUOS4L: case CINTIQ: case WACOM_BEE: return wacom_intuos_irq(wacom_wac, wcombo); @@ -706,6 +781,14 @@ void wacom_init_input_dev(struct input_dev *input_dev, struct wacom_wac *wacom_w case INTUOS: input_dev_i(input_dev, wacom_wac); break; + case INTUOS4: + case INTUOS4L: + input_dev_i4(input_dev, wacom_wac); + /* fall through */ + case INTUOS4S: + input_dev_i4s(input_dev, wacom_wac); + input_dev_i(input_dev, wacom_wac); + break; case PL: case PTU: case TABLETPC: @@ -766,6 +849,10 @@ static struct wacom_features wacom_features[] = { { "Wacom Intuos3 12x19", 10, 97536, 60960, 1023, 63, INTUOS3L }, { "Wacom Intuos3 6x11", 10, 54204, 31750, 1023, 63, INTUOS3 }, { "Wacom Intuos3 4x6", 10, 31496, 19685, 1023, 63, INTUOS3S }, + { "Wacom Intuos4 4x6", 10, 31496, 19685, 2047, 63, INTUOS4S }, + { "Wacom Intuos4 6x9", 10, 44704, 27940, 2047, 63, INTUOS4 }, + { "Wacom Intuos4 8x13", 10, 65024, 40640, 2047, 63, INTUOS4L }, + { "Wacom Intuos4 12x19", 10, 97536, 60960, 2047, 63, INTUOS4L }, { "Wacom Cintiq 21UX", 10, 87200, 65600, 1023, 63, CINTIQ }, { "Wacom Cintiq 20WSX", 10, 86680, 54180, 1023, 63, WACOM_BEE }, { "Wacom Cintiq 12WX", 10, 53020, 33440, 1023, 63, WACOM_BEE }, @@ -825,6 +912,10 @@ static struct usb_device_id wacom_ids[] = { { USB_DEVICE(USB_VENDOR_ID_WACOM, 0xB4) }, { USB_DEVICE(USB_VENDOR_ID_WACOM, 0xB5) }, { USB_DEVICE(USB_VENDOR_ID_WACOM, 0xB7) }, + { USB_DEVICE(USB_VENDOR_ID_WACOM, 0xB8) }, + { USB_DEVICE(USB_VENDOR_ID_WACOM, 0xB9) }, + { USB_DEVICE(USB_VENDOR_ID_WACOM, 0xBA) }, + { USB_DEVICE(USB_VENDOR_ID_WACOM, 0xBB) }, { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x3F) }, { USB_DEVICE(USB_VENDOR_ID_WACOM, 0xC5) }, { USB_DEVICE(USB_VENDOR_ID_WACOM, 0xC6) }, diff --git a/drivers/input/tablet/wacom_wac.h b/drivers/input/tablet/wacom_wac.h index f9c8b69..c10235a 100644 --- a/drivers/input/tablet/wacom_wac.h +++ b/drivers/input/tablet/wacom_wac.h @@ -25,6 +25,9 @@ enum { INTUOS3S, INTUOS3, INTUOS3L, + INTUOS4S, + INTUOS4, + INTUOS4L, CINTIQ, WACOM_BEE, WACOM_MO, diff --git a/drivers/input/touchscreen/Kconfig b/drivers/input/touchscreen/Kconfig index b01fd61d..72e2712 100644 --- a/drivers/input/touchscreen/Kconfig +++ b/drivers/input/touchscreen/Kconfig @@ -111,6 +111,15 @@ config TOUCHSCREEN_DA9034 Say Y here to enable the support for the touchscreen found on Dialog Semiconductor DA9034 PMIC. +config TOUCHSCREEN_EETI + tristate "EETI touchscreen panel support" + depends on I2C + help + Say Y here to enable support for I2C connected EETI touch panels. + + To compile this driver as a module, choose M here: the + module will be called eeti_ts. + config TOUCHSCREEN_FUJITSU tristate "Fujitsu serial touchscreen" select SERIO @@ -341,6 +350,21 @@ config TOUCHSCREEN_WM9713 Say Y here to enable support for the Wolfson Microelectronics WM9713 touchscreen controller. +config TOUCHSCREEN_WM97XX_ATMEL + tristate "WM97xx Atmel accelerated touch" + depends on TOUCHSCREEN_WM97XX && (AVR32 || ARCH_AT91) + help + Say Y here for support for streaming mode with WM97xx touchscreens + on Atmel AT91 or AVR32 systems with an AC97C module. + + Be aware that this will use channel B in the controller for + streaming data, this must not conflict with other AC97C drivers. + + If unsure, say N. + + To compile this driver as a module, choose M here: the module will + be called atmel-wm97xx. + config TOUCHSCREEN_WM97XX_MAINSTONE tristate "WM97xx Mainstone accelerated touch" depends on TOUCHSCREEN_WM97XX && ARCH_PXA @@ -466,4 +490,12 @@ config TOUCHSCREEN_TSC2007 To compile this driver as a module, choose M here: the module will be called tsc2007. +config TOUCHSCREEN_W90X900 + tristate "W90P910 touchscreen driver" + help + Say Y here if you have a W90P910 based touchscreen. + + To compile this driver as a module, choose M here: the + module will be called w90p910_ts. + endif diff --git a/drivers/input/touchscreen/Makefile b/drivers/input/touchscreen/Makefile index 6700f7b9..3e1c5e0 100644 --- a/drivers/input/touchscreen/Makefile +++ b/drivers/input/touchscreen/Makefile @@ -13,6 +13,7 @@ obj-$(CONFIG_TOUCHSCREEN_ATMEL_TSADCC) += atmel_tsadcc.o obj-$(CONFIG_TOUCHSCREEN_BITSY) += h3600_ts_input.o obj-$(CONFIG_TOUCHSCREEN_CORGI) += corgi_ts.o obj-$(CONFIG_TOUCHSCREEN_GUNZE) += gunze.o +obj-$(CONFIG_TOUCHSCREEN_EETI) += eeti_ts.o obj-$(CONFIG_TOUCHSCREEN_ELO) += elo.o obj-$(CONFIG_TOUCHSCREEN_FUJITSU) += fujitsu_ts.o obj-$(CONFIG_TOUCHSCREEN_INEXIO) += inexio.o @@ -35,5 +36,7 @@ obj-$(CONFIG_TOUCHSCREEN_DA9034) += da9034-ts.o wm97xx-ts-$(CONFIG_TOUCHSCREEN_WM9705) += wm9705.o wm97xx-ts-$(CONFIG_TOUCHSCREEN_WM9712) += wm9712.o wm97xx-ts-$(CONFIG_TOUCHSCREEN_WM9713) += wm9713.o +obj-$(CONFIG_TOUCHSCREEN_WM97XX_ATMEL) += atmel-wm97xx.o obj-$(CONFIG_TOUCHSCREEN_WM97XX_MAINSTONE) += mainstone-wm97xx.o obj-$(CONFIG_TOUCHSCREEN_WM97XX_ZYLONITE) += zylonite-wm97xx.o +obj-$(CONFIG_TOUCHSCREEN_W90X900) += w90p910_ts.o diff --git a/drivers/input/touchscreen/ads7846.c b/drivers/input/touchscreen/ads7846.c index 2b01e56..ba9d38c 100644 --- a/drivers/input/touchscreen/ads7846.c +++ b/drivers/input/touchscreen/ads7846.c @@ -83,6 +83,7 @@ struct ads7846_packet { struct ads7846 { struct input_dev *input; char phys[32]; + char name[32]; struct spi_device *spi; @@ -97,6 +98,8 @@ struct ads7846 { u16 x_plate_ohms; u16 pressure_max; + bool swap_xy; + struct ads7846_packet *packet; struct spi_transfer xfer[18]; @@ -599,6 +602,10 @@ static void ads7846_rx(void *ads) dev_dbg(&ts->spi->dev, "DOWN\n"); #endif } + + if (ts->swap_xy) + swap(x, y); + input_report_abs(input, ABS_X, x); input_report_abs(input, ABS_Y, y); input_report_abs(input, ABS_PRESSURE, Rt); @@ -917,6 +924,7 @@ static int __devinit ads7846_probe(struct spi_device *spi) ts->spi = spi; ts->input = input_dev; ts->vref_mv = pdata->vref_mv; + ts->swap_xy = pdata->swap_xy; hrtimer_init(&ts->timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL); ts->timer.function = ads7846_timer; @@ -958,8 +966,9 @@ static int __devinit ads7846_probe(struct spi_device *spi) ts->wait_for_sync = pdata->wait_for_sync ? : null_wait_for_sync; snprintf(ts->phys, sizeof(ts->phys), "%s/input0", dev_name(&spi->dev)); + snprintf(ts->name, sizeof(ts->name), "ADS%d Touchscreen", ts->model); - input_dev->name = "ADS784x Touchscreen"; + input_dev->name = ts->name; input_dev->phys = ts->phys; input_dev->dev.parent = &spi->dev; @@ -1141,9 +1150,15 @@ static int __devinit ads7846_probe(struct spi_device *spi) if (request_irq(spi->irq, ads7846_irq, IRQF_TRIGGER_FALLING, spi->dev.driver->name, ts)) { - dev_dbg(&spi->dev, "irq %d busy?\n", spi->irq); - err = -EBUSY; - goto err_free_gpio; + dev_info(&spi->dev, + "trying pin change workaround on irq %d\n", spi->irq); + err = request_irq(spi->irq, ads7846_irq, + IRQF_TRIGGER_FALLING | IRQF_TRIGGER_RISING, + spi->dev.driver->name, ts); + if (err) { + dev_dbg(&spi->dev, "irq %d busy?\n", spi->irq); + goto err_free_gpio; + } } err = ads784x_hwmon_register(spi, ts); diff --git a/drivers/input/touchscreen/atmel-wm97xx.c b/drivers/input/touchscreen/atmel-wm97xx.c new file mode 100644 index 0000000..35377f5 --- /dev/null +++ b/drivers/input/touchscreen/atmel-wm97xx.c @@ -0,0 +1,446 @@ +/* + * Atmel AT91 and AVR32 continuous touch screen driver for Wolfson WM97xx AC97 + * codecs. + * + * Copyright (C) 2008 - 2009 Atmel Corporation + * + * 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/module.h> +#include <linux/moduleparam.h> +#include <linux/kernel.h> +#include <linux/init.h> +#include <linux/delay.h> +#include <linux/irq.h> +#include <linux/interrupt.h> +#include <linux/wm97xx.h> +#include <linux/timer.h> +#include <linux/gpio.h> +#include <linux/io.h> + +#define AC97C_ICA 0x10 +#define AC97C_CBRHR 0x30 +#define AC97C_CBSR 0x38 +#define AC97C_CBMR 0x3c +#define AC97C_IER 0x54 +#define AC97C_IDR 0x58 + +#define AC97C_RXRDY (1 << 4) +#define AC97C_OVRUN (1 << 5) + +#define AC97C_CMR_SIZE_20 (0 << 16) +#define AC97C_CMR_SIZE_18 (1 << 16) +#define AC97C_CMR_SIZE_16 (2 << 16) +#define AC97C_CMR_SIZE_10 (3 << 16) +#define AC97C_CMR_CEM_LITTLE (1 << 18) +#define AC97C_CMR_CEM_BIG (0 << 18) +#define AC97C_CMR_CENA (1 << 21) + +#define AC97C_INT_CBEVT (1 << 4) + +#define AC97C_SR_CAEVT (1 << 3) + +#define AC97C_CH_MASK(slot) \ + (0x7 << (3 * (slot - 3))) +#define AC97C_CH_ASSIGN(slot, channel) \ + (AC97C_CHANNEL_##channel << (3 * (slot - 3))) +#define AC97C_CHANNEL_NONE 0x0 +#define AC97C_CHANNEL_B 0x2 + +#define ac97c_writel(chip, reg, val) \ + __raw_writel((val), (chip)->regs + AC97C_##reg) +#define ac97c_readl(chip, reg) \ + __raw_readl((chip)->regs + AC97C_##reg) + +#ifdef CONFIG_CPU_AT32AP700X +#define ATMEL_WM97XX_AC97C_IOMEM (0xfff02800) +#define ATMEL_WM97XX_AC97C_IRQ (29) +#define ATMEL_WM97XX_GPIO_DEFAULT (32+16) /* Pin 16 on port B. */ +#else +#error Unkown CPU, this driver only supports AT32AP700X CPUs. +#endif + +struct continuous { + u16 id; /* codec id */ + u8 code; /* continuous code */ + u8 reads; /* number of coord reads per read cycle */ + u32 speed; /* number of coords per second */ +}; + +#define WM_READS(sp) ((sp / HZ) + 1) + +static const struct continuous cinfo[] = { + {WM9705_ID2, 0, WM_READS(94), 94}, + {WM9705_ID2, 1, WM_READS(188), 188}, + {WM9705_ID2, 2, WM_READS(375), 375}, + {WM9705_ID2, 3, WM_READS(750), 750}, + {WM9712_ID2, 0, WM_READS(94), 94}, + {WM9712_ID2, 1, WM_READS(188), 188}, + {WM9712_ID2, 2, WM_READS(375), 375}, + {WM9712_ID2, 3, WM_READS(750), 750}, + {WM9713_ID2, 0, WM_READS(94), 94}, + {WM9713_ID2, 1, WM_READS(120), 120}, + {WM9713_ID2, 2, WM_READS(154), 154}, + {WM9713_ID2, 3, WM_READS(188), 188}, +}; + +/* Continuous speed index. */ +static int sp_idx; + +/* + * Pen sampling frequency (Hz) in continuous mode. + */ +static int cont_rate = 188; +module_param(cont_rate, int, 0); +MODULE_PARM_DESC(cont_rate, "Sampling rate in continuous mode (Hz)"); + +/* + * Pen down detection. + * + * This driver can either poll or use an interrupt to indicate a pen down + * event. If the irq request fails then it will fall back to polling mode. + */ +static int pen_int = 1; +module_param(pen_int, int, 0); +MODULE_PARM_DESC(pen_int, "Pen down detection (1 = interrupt, 0 = polling)"); + +/* + * Pressure readback. + * + * Set to 1 to read back pen down pressure. + */ +static int pressure; +module_param(pressure, int, 0); +MODULE_PARM_DESC(pressure, "Pressure readback (1 = pressure, 0 = no pressure)"); + +/* + * AC97 touch data slot. + * + * Touch screen readback data ac97 slot. + */ +static int ac97_touch_slot = 5; +module_param(ac97_touch_slot, int, 0); +MODULE_PARM_DESC(ac97_touch_slot, "Touch screen data slot AC97 number"); + +/* + * GPIO line number. + * + * Set to GPIO number where the signal from the WM97xx device is hooked up. + */ +static int atmel_gpio_line = ATMEL_WM97XX_GPIO_DEFAULT; +module_param(atmel_gpio_line, int, 0); +MODULE_PARM_DESC(atmel_gpio_line, "GPIO line number connected to WM97xx"); + +struct atmel_wm97xx { + struct wm97xx *wm; + struct timer_list pen_timer; + void __iomem *regs; + unsigned long ac97c_irq; + unsigned long gpio_pen; + unsigned long gpio_irq; + unsigned short x; + unsigned short y; +}; + +static irqreturn_t atmel_wm97xx_channel_b_interrupt(int irq, void *dev_id) +{ + struct atmel_wm97xx *atmel_wm97xx = dev_id; + struct wm97xx *wm = atmel_wm97xx->wm; + int status = ac97c_readl(atmel_wm97xx, CBSR); + irqreturn_t retval = IRQ_NONE; + + if (status & AC97C_OVRUN) { + dev_dbg(&wm->touch_dev->dev, "AC97C overrun\n"); + ac97c_readl(atmel_wm97xx, CBRHR); + retval = IRQ_HANDLED; + } else if (status & AC97C_RXRDY) { + u16 data; + u16 value; + u16 source; + u16 pen_down; + + data = ac97c_readl(atmel_wm97xx, CBRHR); + value = data & 0x0fff; + source = data & WM97XX_ADCSRC_MASK; + pen_down = (data & WM97XX_PEN_DOWN) >> 8; + + if (source == WM97XX_ADCSEL_X) + atmel_wm97xx->x = value; + if (source == WM97XX_ADCSEL_Y) + atmel_wm97xx->y = value; + + if (!pressure && source == WM97XX_ADCSEL_Y) { + input_report_abs(wm->input_dev, ABS_X, atmel_wm97xx->x); + input_report_abs(wm->input_dev, ABS_Y, atmel_wm97xx->y); + input_report_key(wm->input_dev, BTN_TOUCH, pen_down); + input_sync(wm->input_dev); + } else if (pressure && source == WM97XX_ADCSEL_PRES) { + input_report_abs(wm->input_dev, ABS_X, atmel_wm97xx->x); + input_report_abs(wm->input_dev, ABS_Y, atmel_wm97xx->y); + input_report_abs(wm->input_dev, ABS_PRESSURE, value); + input_report_key(wm->input_dev, BTN_TOUCH, value); + input_sync(wm->input_dev); + } + + retval = IRQ_HANDLED; + } + + return retval; +} + +static void atmel_wm97xx_acc_pen_up(struct wm97xx *wm) +{ + struct atmel_wm97xx *atmel_wm97xx = platform_get_drvdata(wm->touch_dev); + struct input_dev *input_dev = wm->input_dev; + int pen_down = gpio_get_value(atmel_wm97xx->gpio_pen); + + if (pen_down != 0) { + mod_timer(&atmel_wm97xx->pen_timer, + jiffies + msecs_to_jiffies(1)); + } else { + if (pressure) + input_report_abs(input_dev, ABS_PRESSURE, 0); + input_report_key(input_dev, BTN_TOUCH, 0); + input_sync(input_dev); + } +} + +static void atmel_wm97xx_pen_timer(unsigned long data) +{ + atmel_wm97xx_acc_pen_up((struct wm97xx *)data); +} + +static int atmel_wm97xx_acc_startup(struct wm97xx *wm) +{ + struct atmel_wm97xx *atmel_wm97xx = platform_get_drvdata(wm->touch_dev); + int idx = 0; + + if (wm->ac97 == NULL) + return -ENODEV; + + for (idx = 0; idx < ARRAY_SIZE(cinfo); idx++) { + if (wm->id != cinfo[idx].id) + continue; + + sp_idx = idx; + + if (cont_rate <= cinfo[idx].speed) + break; + } + + wm->acc_rate = cinfo[sp_idx].code; + wm->acc_slot = ac97_touch_slot; + dev_info(&wm->touch_dev->dev, "atmel accelerated touchscreen driver, " + "%d samples/sec\n", cinfo[sp_idx].speed); + + if (pen_int) { + unsigned long reg; + + wm->pen_irq = atmel_wm97xx->gpio_irq; + + switch (wm->id) { + case WM9712_ID2: /* Fall through. */ + case WM9713_ID2: + /* + * Use GPIO 13 (PEN_DOWN) to assert GPIO line 3 + * (PENDOWN). + */ + wm97xx_config_gpio(wm, WM97XX_GPIO_13, WM97XX_GPIO_IN, + WM97XX_GPIO_POL_HIGH, + WM97XX_GPIO_STICKY, + WM97XX_GPIO_WAKE); + wm97xx_config_gpio(wm, WM97XX_GPIO_3, WM97XX_GPIO_OUT, + WM97XX_GPIO_POL_HIGH, + WM97XX_GPIO_NOTSTICKY, + WM97XX_GPIO_NOWAKE); + case WM9705_ID2: /* Fall through. */ + /* + * Enable touch data slot in AC97 controller channel B. + */ + reg = ac97c_readl(atmel_wm97xx, ICA); + reg &= ~AC97C_CH_MASK(wm->acc_slot); + reg |= AC97C_CH_ASSIGN(wm->acc_slot, B); + ac97c_writel(atmel_wm97xx, ICA, reg); + + /* + * Enable channel and interrupt for RXRDY and OVERRUN. + */ + ac97c_writel(atmel_wm97xx, CBMR, AC97C_CMR_CENA + | AC97C_CMR_CEM_BIG + | AC97C_CMR_SIZE_16 + | AC97C_OVRUN + | AC97C_RXRDY); + /* Dummy read to empty RXRHR. */ + ac97c_readl(atmel_wm97xx, CBRHR); + /* + * Enable interrupt for channel B in the AC97 + * controller. + */ + ac97c_writel(atmel_wm97xx, IER, AC97C_INT_CBEVT); + break; + default: + dev_err(&wm->touch_dev->dev, "pen down irq not " + "supported on this device\n"); + pen_int = 0; + break; + } + } + + return 0; +} + +static void atmel_wm97xx_acc_shutdown(struct wm97xx *wm) +{ + if (pen_int) { + struct atmel_wm97xx *atmel_wm97xx = + platform_get_drvdata(wm->touch_dev); + unsigned long ica; + + switch (wm->id & 0xffff) { + case WM9705_ID2: /* Fall through. */ + case WM9712_ID2: /* Fall through. */ + case WM9713_ID2: + /* Disable slot and turn off channel B interrupts. */ + ica = ac97c_readl(atmel_wm97xx, ICA); + ica &= ~AC97C_CH_MASK(wm->acc_slot); + ac97c_writel(atmel_wm97xx, ICA, ica); + ac97c_writel(atmel_wm97xx, IDR, AC97C_INT_CBEVT); + ac97c_writel(atmel_wm97xx, CBMR, 0); + wm->pen_irq = 0; + break; + default: + dev_err(&wm->touch_dev->dev, "unknown codec\n"); + break; + } + } +} + +static void atmel_wm97xx_irq_enable(struct wm97xx *wm, int enable) +{ + /* Intentionally left empty. */ +} + +static struct wm97xx_mach_ops atmel_mach_ops = { + .acc_enabled = 1, + .acc_pen_up = atmel_wm97xx_acc_pen_up, + .acc_startup = atmel_wm97xx_acc_startup, + .acc_shutdown = atmel_wm97xx_acc_shutdown, + .irq_enable = atmel_wm97xx_irq_enable, + .irq_gpio = WM97XX_GPIO_3, +}; + +static int __init atmel_wm97xx_probe(struct platform_device *pdev) +{ + struct wm97xx *wm = platform_get_drvdata(pdev); + struct atmel_wm97xx *atmel_wm97xx; + int ret; + + atmel_wm97xx = kzalloc(sizeof(struct atmel_wm97xx), GFP_KERNEL); + if (!atmel_wm97xx) { + dev_dbg(&pdev->dev, "out of memory\n"); + return -ENOMEM; + } + + atmel_wm97xx->wm = wm; + atmel_wm97xx->regs = (void *)ATMEL_WM97XX_AC97C_IOMEM; + atmel_wm97xx->ac97c_irq = ATMEL_WM97XX_AC97C_IRQ; + atmel_wm97xx->gpio_pen = atmel_gpio_line; + atmel_wm97xx->gpio_irq = gpio_to_irq(atmel_wm97xx->gpio_pen); + + setup_timer(&atmel_wm97xx->pen_timer, atmel_wm97xx_pen_timer, + (unsigned long)wm); + + ret = request_irq(atmel_wm97xx->ac97c_irq, + atmel_wm97xx_channel_b_interrupt, + IRQF_SHARED, "atmel-wm97xx-ch-b", atmel_wm97xx); + if (ret) { + dev_dbg(&pdev->dev, "could not request ac97c irq\n"); + goto err; + } + + platform_set_drvdata(pdev, atmel_wm97xx); + + ret = wm97xx_register_mach_ops(wm, &atmel_mach_ops); + if (ret) + goto err_irq; + + return ret; + +err_irq: + free_irq(atmel_wm97xx->ac97c_irq, atmel_wm97xx); +err: + platform_set_drvdata(pdev, NULL); + kfree(atmel_wm97xx); + return ret; +} + +static int __exit atmel_wm97xx_remove(struct platform_device *pdev) +{ + struct atmel_wm97xx *atmel_wm97xx = platform_get_drvdata(pdev); + struct wm97xx *wm = atmel_wm97xx->wm; + + ac97c_writel(atmel_wm97xx, IDR, AC97C_INT_CBEVT); + free_irq(atmel_wm97xx->ac97c_irq, atmel_wm97xx); + del_timer_sync(&atmel_wm97xx->pen_timer); + wm97xx_unregister_mach_ops(wm); + platform_set_drvdata(pdev, NULL); + kfree(atmel_wm97xx); + + return 0; +} + +#ifdef CONFIG_PM +static int atmel_wm97xx_suspend(struct platform_device *pdev, pm_message_t msg) +{ + struct atmel_wm97xx *atmel_wm97xx = platform_get_drvdata(pdev); + + ac97c_writel(atmel_wm97xx, IDR, AC97C_INT_CBEVT); + disable_irq(atmel_wm97xx->gpio_irq); + del_timer_sync(&atmel_wm97xx->pen_timer); + + return 0; +} + +static int atmel_wm97xx_resume(struct platform_device *pdev) +{ + struct atmel_wm97xx *atmel_wm97xx = platform_get_drvdata(pdev); + struct wm97xx *wm = atmel_wm97xx->wm; + + if (wm->input_dev->users) { + enable_irq(atmel_wm97xx->gpio_irq); + ac97c_writel(atmel_wm97xx, IER, AC97C_INT_CBEVT); + } + + return 0; +} +#else +#define atmel_wm97xx_suspend NULL +#define atmel_wm97xx_resume NULL +#endif + +static struct platform_driver atmel_wm97xx_driver = { + .remove = __exit_p(atmel_wm97xx_remove), + .driver = { + .name = "wm97xx-touch", + }, + .suspend = atmel_wm97xx_suspend, + .resume = atmel_wm97xx_resume, +}; + +static int __init atmel_wm97xx_init(void) +{ + return platform_driver_probe(&atmel_wm97xx_driver, atmel_wm97xx_probe); +} +module_init(atmel_wm97xx_init); + +static void __exit atmel_wm97xx_exit(void) +{ + platform_driver_unregister(&atmel_wm97xx_driver); +} +module_exit(atmel_wm97xx_exit); + +MODULE_AUTHOR("Hans-Christian Egtvedt <hans-christian.egtvedt@atmel.com>"); +MODULE_DESCRIPTION("wm97xx continuous touch driver for Atmel AT91 and AVR32"); +MODULE_LICENSE("GPL"); diff --git a/drivers/input/touchscreen/eeti_ts.c b/drivers/input/touchscreen/eeti_ts.c new file mode 100644 index 0000000..3ab9222 --- /dev/null +++ b/drivers/input/touchscreen/eeti_ts.c @@ -0,0 +1,286 @@ +/* + * Touch Screen driver for EETI's I2C connected touch screen panels + * Copyright (c) 2009 Daniel Mack <daniel@caiaq.de> + * + * See EETI's software guide for the protocol specification: + * http://home.eeti.com.tw/web20/eg/guide.htm + * + * Based on migor_ts.c + * Copyright (c) 2008 Magnus Damm + * Copyright (c) 2007 Ujjwal Pande <ujjwal@kenati.com> + * + * This file is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public + * License as published by the Free Software Foundation; either + * version 2 of the License, or (at your option) any later version. + * + * This file is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + +#include <linux/module.h> +#include <linux/moduleparam.h> +#include <linux/kernel.h> +#include <linux/input.h> +#include <linux/interrupt.h> +#include <linux/i2c.h> +#include <linux/timer.h> +#include <linux/gpio.h> + +static int flip_x; +module_param(flip_x, bool, 0644); +MODULE_PARM_DESC(flip_x, "flip x coordinate"); + +static int flip_y; +module_param(flip_y, bool, 0644); +MODULE_PARM_DESC(flip_y, "flip y coordinate"); + +struct eeti_ts_priv { + struct i2c_client *client; + struct input_dev *input; + struct work_struct work; + struct mutex mutex; + int irq; +}; + +#define EETI_TS_BITDEPTH (11) +#define EETI_MAXVAL ((1 << (EETI_TS_BITDEPTH + 1)) - 1) + +#define REPORT_BIT_PRESSED (1 << 0) +#define REPORT_BIT_AD0 (1 << 1) +#define REPORT_BIT_AD1 (1 << 2) +#define REPORT_BIT_HAS_PRESSURE (1 << 6) +#define REPORT_RES_BITS(v) (((v) >> 1) + EETI_TS_BITDEPTH) + +static void eeti_ts_read(struct work_struct *work) +{ + char buf[6]; + unsigned int x, y, res, pressed, to = 100; + struct eeti_ts_priv *priv = + container_of(work, struct eeti_ts_priv, work); + + mutex_lock(&priv->mutex); + + while (!gpio_get_value(irq_to_gpio(priv->irq)) && --to) + i2c_master_recv(priv->client, buf, sizeof(buf)); + + if (!to) { + dev_err(&priv->client->dev, + "unable to clear IRQ - line stuck?\n"); + goto out; + } + + /* drop non-report packets */ + if (!(buf[0] & 0x80)) + goto out; + + pressed = buf[0] & REPORT_BIT_PRESSED; + res = REPORT_RES_BITS(buf[0] & (REPORT_BIT_AD0 | REPORT_BIT_AD1)); + x = buf[2] | (buf[1] << 8); + y = buf[4] | (buf[3] << 8); + + /* fix the range to 11 bits */ + x >>= res - EETI_TS_BITDEPTH; + y >>= res - EETI_TS_BITDEPTH; + + if (flip_x) + x = EETI_MAXVAL - x; + + if (flip_y) + y = EETI_MAXVAL - y; + + if (buf[0] & REPORT_BIT_HAS_PRESSURE) + input_report_abs(priv->input, ABS_PRESSURE, buf[5]); + + input_report_abs(priv->input, ABS_X, x); + input_report_abs(priv->input, ABS_Y, y); + input_report_key(priv->input, BTN_TOUCH, !!pressed); + input_sync(priv->input); + +out: + mutex_unlock(&priv->mutex); +} + +static irqreturn_t eeti_ts_isr(int irq, void *dev_id) +{ + struct eeti_ts_priv *priv = dev_id; + + /* postpone I2C transactions as we are atomic */ + schedule_work(&priv->work); + + return IRQ_HANDLED; +} + +static int eeti_ts_open(struct input_dev *dev) +{ + struct eeti_ts_priv *priv = input_get_drvdata(dev); + + enable_irq(priv->irq); + + /* Read the events once to arm the IRQ */ + eeti_ts_read(&priv->work); + + return 0; +} + +static void eeti_ts_close(struct input_dev *dev) +{ + struct eeti_ts_priv *priv = input_get_drvdata(dev); + + disable_irq(priv->irq); + cancel_work_sync(&priv->work); +} + +static int __devinit eeti_ts_probe(struct i2c_client *client, + const struct i2c_device_id *idp) +{ + struct eeti_ts_priv *priv; + struct input_dev *input; + int err = -ENOMEM; + + /* In contrast to what's described in the datasheet, there seems + * to be no way of probing the presence of that device using I2C + * commands. So we need to blindly believe it is there, and wait + * for interrupts to occur. */ + + priv = kzalloc(sizeof(*priv), GFP_KERNEL); + if (!priv) { + dev_err(&client->dev, "failed to allocate driver data\n"); + goto err0; + } + + mutex_init(&priv->mutex); + input = input_allocate_device(); + + if (!input) { + dev_err(&client->dev, "Failed to allocate input device.\n"); + goto err1; + } + + input->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS); + input->keybit[BIT_WORD(BTN_TOUCH)] = BIT_MASK(BTN_TOUCH); + + input_set_abs_params(input, ABS_X, 0, EETI_MAXVAL, 0, 0); + input_set_abs_params(input, ABS_Y, 0, EETI_MAXVAL, 0, 0); + input_set_abs_params(input, ABS_PRESSURE, 0, 0xff, 0, 0); + + input->name = client->name; + input->id.bustype = BUS_I2C; + input->dev.parent = &client->dev; + input->open = eeti_ts_open; + input->close = eeti_ts_close; + + priv->client = client; + priv->input = input; + priv->irq = client->irq; + + INIT_WORK(&priv->work, eeti_ts_read); + i2c_set_clientdata(client, priv); + input_set_drvdata(input, priv); + + err = input_register_device(input); + if (err) + goto err1; + + err = request_irq(priv->irq, eeti_ts_isr, IRQF_TRIGGER_FALLING, + client->name, priv); + if (err) { + dev_err(&client->dev, "Unable to request touchscreen IRQ.\n"); + goto err2; + } + + /* Disable the irq for now. It will be enabled once the input device + * is opened. */ + disable_irq(priv->irq); + + device_init_wakeup(&client->dev, 0); + return 0; + +err2: + input_unregister_device(input); + input = NULL; /* so we dont try to free it below */ +err1: + input_free_device(input); + i2c_set_clientdata(client, NULL); + kfree(priv); +err0: + return err; +} + +static int __devexit eeti_ts_remove(struct i2c_client *client) +{ + struct eeti_ts_priv *priv = i2c_get_clientdata(client); + + free_irq(priv->irq, priv); + input_unregister_device(priv->input); + i2c_set_clientdata(client, NULL); + kfree(priv); + + return 0; +} + +#ifdef CONFIG_PM +static int eeti_ts_suspend(struct i2c_client *client, pm_message_t mesg) +{ + struct eeti_ts_priv *priv = i2c_get_clientdata(client); + + if (device_may_wakeup(&client->dev)) + enable_irq_wake(priv->irq); + + return 0; +} + +static int eeti_ts_resume(struct i2c_client *client) +{ + struct eeti_ts_priv *priv = i2c_get_clientdata(client); + + if (device_may_wakeup(&client->dev)) + disable_irq_wake(priv->irq); + + return 0; +} +#else +#define eeti_ts_suspend NULL +#define eeti_ts_resume NULL +#endif + +static const struct i2c_device_id eeti_ts_id[] = { + { "eeti_ts", 0 }, + { } +}; +MODULE_DEVICE_TABLE(i2c, eeti_ts_id); + +static struct i2c_driver eeti_ts_driver = { + .driver = { + .name = "eeti_ts", + }, + .probe = eeti_ts_probe, + .remove = __devexit_p(eeti_ts_remove), + .suspend = eeti_ts_suspend, + .resume = eeti_ts_resume, + .id_table = eeti_ts_id, +}; + +static int __init eeti_ts_init(void) +{ + return i2c_add_driver(&eeti_ts_driver); +} + +static void __exit eeti_ts_exit(void) +{ + i2c_del_driver(&eeti_ts_driver); +} + +MODULE_DESCRIPTION("EETI Touchscreen driver"); +MODULE_AUTHOR("Daniel Mack <daniel@caiaq.de>"); +MODULE_LICENSE("GPL"); + +module_init(eeti_ts_init); +module_exit(eeti_ts_exit); + diff --git a/drivers/input/touchscreen/tsc2007.c b/drivers/input/touchscreen/tsc2007.c index 948e167..880f58c 100644 --- a/drivers/input/touchscreen/tsc2007.c +++ b/drivers/input/touchscreen/tsc2007.c @@ -257,7 +257,7 @@ static int tsc2007_probe(struct i2c_client *client, struct input_dev *input_dev; int err; - if (!pdata) { + if (!pdata || !pdata->get_pendown_state) { dev_err(&client->dev, "platform data is required!\n"); return -EINVAL; } diff --git a/drivers/input/touchscreen/w90p910_ts.c b/drivers/input/touchscreen/w90p910_ts.c new file mode 100644 index 0000000..6071f58 --- /dev/null +++ b/drivers/input/touchscreen/w90p910_ts.c @@ -0,0 +1,350 @@ +/* + * Copyright (c) 2008 Nuvoton technology corporation. + * + * Wan ZongShun <mcuos.com@gmail.com> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation;version 2 of the License. + * + */ + +#include <linux/delay.h> +#include <linux/module.h> +#include <linux/platform_device.h> +#include <linux/io.h> +#include <linux/input.h> +#include <linux/interrupt.h> + +/* ADC controller bit defines */ +#define ADC_DELAY 0xf00 +#define ADC_DOWN 0x01 +#define ADC_TSC_Y (0x01 << 8) +#define ADC_TSC_X (0x00 << 8) +#define TSC_FOURWIRE (~(0x03 << 1)) +#define ADC_CLK_EN (0x01 << 28) /* ADC clock enable */ +#define ADC_READ_CON (0x01 << 12) +#define ADC_CONV (0x01 << 13) +#define ADC_SEMIAUTO (0x01 << 14) +#define ADC_WAITTRIG (0x03 << 14) +#define ADC_RST1 (0x01 << 16) +#define ADC_RST0 (0x00 << 16) +#define ADC_EN (0x01 << 17) +#define ADC_INT (0x01 << 18) +#define WT_INT (0x01 << 20) +#define ADC_INT_EN (0x01 << 21) +#define LVD_INT_EN (0x01 << 22) +#define WT_INT_EN (0x01 << 23) +#define ADC_DIV (0x04 << 1) /* div = 6 */ + +enum ts_state { + TS_WAIT_NEW_PACKET, /* We are waiting next touch report */ + TS_WAIT_X_COORD, /* We are waiting for ADC to report X coord */ + TS_WAIT_Y_COORD, /* We are waiting for ADC to report Y coord */ + TS_IDLE, /* Input device is closed, don't do anything */ +}; + +struct w90p910_ts { + struct input_dev *input; + struct timer_list timer; + int irq_num; + void __iomem *clocken; + void __iomem *ts_reg; + spinlock_t lock; + enum ts_state state; +}; + +static void w90p910_report_event(struct w90p910_ts *w90p910_ts, bool down) +{ + struct input_dev *dev = w90p910_ts->input; + + if (down) { + input_report_abs(dev, ABS_X, + __raw_readl(w90p910_ts->ts_reg + 0x0c)); + input_report_abs(dev, ABS_Y, + __raw_readl(w90p910_ts->ts_reg + 0x10)); + } + + input_report_key(dev, BTN_TOUCH, down); + input_sync(dev); +} + +static void w90p910_prepare_x_reading(struct w90p910_ts *w90p910_ts) +{ + unsigned long ctlreg; + + __raw_writel(ADC_TSC_X, w90p910_ts->ts_reg + 0x04); + ctlreg = __raw_readl(w90p910_ts->ts_reg); + ctlreg &= ~(ADC_WAITTRIG | WT_INT | WT_INT_EN); + ctlreg |= ADC_SEMIAUTO | ADC_INT_EN | ADC_CONV; + __raw_writel(ctlreg, w90p910_ts->ts_reg); + + w90p910_ts->state = TS_WAIT_X_COORD; +} + +static void w90p910_prepare_y_reading(struct w90p910_ts *w90p910_ts) +{ + unsigned long ctlreg; + + __raw_writel(ADC_TSC_Y, w90p910_ts->ts_reg + 0x04); + ctlreg = __raw_readl(w90p910_ts->ts_reg); + ctlreg &= ~(ADC_WAITTRIG | ADC_INT | WT_INT_EN); + ctlreg |= ADC_SEMIAUTO | ADC_INT_EN | ADC_CONV; + __raw_writel(ctlreg, w90p910_ts->ts_reg); + + w90p910_ts->state = TS_WAIT_Y_COORD; +} + +static void w90p910_prepare_next_packet(struct w90p910_ts *w90p910_ts) +{ + unsigned long ctlreg; + + ctlreg = __raw_readl(w90p910_ts->ts_reg); + ctlreg &= ~(ADC_INT | ADC_INT_EN | ADC_SEMIAUTO | ADC_CONV); + ctlreg |= ADC_WAITTRIG | WT_INT_EN; + __raw_writel(ctlreg, w90p910_ts->ts_reg); + + w90p910_ts->state = TS_WAIT_NEW_PACKET; +} + +static irqreturn_t w90p910_ts_interrupt(int irq, void *dev_id) +{ + struct w90p910_ts *w90p910_ts = dev_id; + unsigned long flags; + + spin_lock_irqsave(&w90p910_ts->lock, flags); + + switch (w90p910_ts->state) { + case TS_WAIT_NEW_PACKET: + /* + * The controller only generates interrupts when pen + * is down. + */ + del_timer(&w90p910_ts->timer); + w90p910_prepare_x_reading(w90p910_ts); + break; + + + case TS_WAIT_X_COORD: + w90p910_prepare_y_reading(w90p910_ts); + break; + + case TS_WAIT_Y_COORD: + w90p910_report_event(w90p910_ts, true); + w90p910_prepare_next_packet(w90p910_ts); + mod_timer(&w90p910_ts->timer, jiffies + msecs_to_jiffies(100)); + break; + + case TS_IDLE: + break; + } + + spin_unlock_irqrestore(&w90p910_ts->lock, flags); + + return IRQ_HANDLED; +} + +static void w90p910_check_pen_up(unsigned long data) +{ + struct w90p910_ts *w90p910_ts = (struct w90p910_ts *) data; + unsigned long flags; + + spin_lock_irqsave(&w90p910_ts->lock, flags); + + if (w90p910_ts->state == TS_WAIT_NEW_PACKET && + !(__raw_readl(w90p910_ts->ts_reg + 0x04) & ADC_DOWN)) { + + w90p910_report_event(w90p910_ts, false); + } + + spin_unlock_irqrestore(&w90p910_ts->lock, flags); +} + +static int w90p910_open(struct input_dev *dev) +{ + struct w90p910_ts *w90p910_ts = input_get_drvdata(dev); + unsigned long val; + + /* enable the ADC clock */ + val = __raw_readl(w90p910_ts->clocken); + __raw_writel(val | ADC_CLK_EN, w90p910_ts->clocken); + + __raw_writel(ADC_RST1, w90p910_ts->ts_reg); + msleep(1); + __raw_writel(ADC_RST0, w90p910_ts->ts_reg); + msleep(1); + + /* set delay and screen type */ + val = __raw_readl(w90p910_ts->ts_reg + 0x04); + __raw_writel(val & TSC_FOURWIRE, w90p910_ts->ts_reg + 0x04); + __raw_writel(ADC_DELAY, w90p910_ts->ts_reg + 0x08); + + w90p910_ts->state = TS_WAIT_NEW_PACKET; + wmb(); + + /* set trigger mode */ + val = __raw_readl(w90p910_ts->ts_reg); + val |= ADC_WAITTRIG | ADC_DIV | ADC_EN | WT_INT_EN; + __raw_writel(val, w90p910_ts->ts_reg); + + return 0; +} + +static void w90p910_close(struct input_dev *dev) +{ + struct w90p910_ts *w90p910_ts = input_get_drvdata(dev); + unsigned long val; + + /* disable trigger mode */ + + spin_lock_irq(&w90p910_ts->lock); + + w90p910_ts->state = TS_IDLE; + + val = __raw_readl(w90p910_ts->ts_reg); + val &= ~(ADC_WAITTRIG | ADC_DIV | ADC_EN | WT_INT_EN | ADC_INT_EN); + __raw_writel(val, w90p910_ts->ts_reg); + + spin_unlock_irq(&w90p910_ts->lock); + + /* Now that interrupts are shut off we can safely delete timer */ + del_timer_sync(&w90p910_ts->timer); + + /* stop the ADC clock */ + val = __raw_readl(w90p910_ts->clocken); + __raw_writel(val & ~ADC_CLK_EN, w90p910_ts->clocken); +} + +static int __devinit w90x900ts_probe(struct platform_device *pdev) +{ + struct w90p910_ts *w90p910_ts; + struct input_dev *input_dev; + struct resource *res; + int err; + + w90p910_ts = kzalloc(sizeof(struct w90p910_ts), GFP_KERNEL); + input_dev = input_allocate_device(); + if (!w90p910_ts || !input_dev) { + err = -ENOMEM; + goto fail1; + } + + w90p910_ts->input = input_dev; + w90p910_ts->state = TS_IDLE; + spin_lock_init(&w90p910_ts->lock); + setup_timer(&w90p910_ts->timer, w90p910_check_pen_up, + (unsigned long)&w90p910_ts); + + res = platform_get_resource(pdev, IORESOURCE_MEM, 0); + if (!res) { + err = -ENXIO; + goto fail1; + } + + if (!request_mem_region(res->start, res->end - res->start + 1, + pdev->name)) { + err = -EBUSY; + goto fail1; + } + + w90p910_ts->ts_reg = ioremap(res->start, res->end - res->start + 1); + if (!w90p910_ts->ts_reg) { + err = -ENOMEM; + goto fail2; + } + + res = platform_get_resource(pdev, IORESOURCE_MEM, 1); + if (!res) { + err = -ENXIO; + goto fail3; + } + + w90p910_ts->clocken = (void __iomem *)res->start; + + input_dev->name = "W90P910 TouchScreen"; + input_dev->phys = "w90p910ts/event0"; + input_dev->id.bustype = BUS_HOST; + input_dev->id.vendor = 0x0005; + input_dev->id.product = 0x0001; + input_dev->id.version = 0x0100; + input_dev->dev.parent = &pdev->dev; + input_dev->open = w90p910_open; + input_dev->close = w90p910_close; + + input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS); + input_dev->keybit[BIT_WORD(BTN_TOUCH)] = BIT_MASK(BTN_TOUCH); + + input_set_abs_params(input_dev, ABS_X, 0, 0x400, 0, 0); + input_set_abs_params(input_dev, ABS_Y, 0, 0x400, 0, 0); + + input_set_drvdata(input_dev, w90p910_ts); + + w90p910_ts->irq_num = platform_get_irq(pdev, 0); + if (request_irq(w90p910_ts->irq_num, w90p910_ts_interrupt, + IRQF_DISABLED, "w90p910ts", w90p910_ts)) { + err = -EBUSY; + goto fail3; + } + + err = input_register_device(w90p910_ts->input); + if (err) + goto fail4; + + platform_set_drvdata(pdev, w90p910_ts); + + return 0; + +fail4: free_irq(w90p910_ts->irq_num, w90p910_ts); +fail3: iounmap(w90p910_ts->ts_reg); +fail2: release_mem_region(res->start, res->end - res->start + 1); +fail1: input_free_device(input_dev); + kfree(w90p910_ts); + return err; +} + +static int __devexit w90x900ts_remove(struct platform_device *pdev) +{ + struct w90p910_ts *w90p910_ts = platform_get_drvdata(pdev); + struct resource *res; + + free_irq(w90p910_ts->irq_num, w90p910_ts); + del_timer_sync(&w90p910_ts->timer); + iounmap(w90p910_ts->ts_reg); + + res = platform_get_resource(pdev, IORESOURCE_MEM, 0); + release_mem_region(res->start, res->end - res->start + 1); + + input_unregister_device(w90p910_ts->input); + kfree(w90p910_ts); + + platform_set_drvdata(pdev, NULL); + + return 0; +} + +static struct platform_driver w90x900ts_driver = { + .probe = w90x900ts_probe, + .remove = __devexit_p(w90x900ts_remove), + .driver = { + .name = "w90x900-ts", + .owner = THIS_MODULE, + }, +}; + +static int __init w90x900ts_init(void) +{ + return platform_driver_register(&w90x900ts_driver); +} + +static void __exit w90x900ts_exit(void) +{ + platform_driver_unregister(&w90x900ts_driver); +} + +module_init(w90x900ts_init); +module_exit(w90x900ts_exit); + +MODULE_AUTHOR("Wan ZongShun <mcuos.com@gmail.com>"); +MODULE_DESCRIPTION("w90p910 touch screen driver!"); +MODULE_LICENSE("GPL"); +MODULE_ALIAS("platform:w90p910-ts"); |
