diff options
Diffstat (limited to 'ANDROID_3.4.5/drivers/media/rc/gpio-ir-recv.c')
| -rw-r--r-- | ANDROID_3.4.5/drivers/media/rc/gpio-ir-recv.c | 205 |
1 files changed, 0 insertions, 205 deletions
diff --git a/ANDROID_3.4.5/drivers/media/rc/gpio-ir-recv.c b/ANDROID_3.4.5/drivers/media/rc/gpio-ir-recv.c deleted file mode 100644 index 0d875450..00000000 --- a/ANDROID_3.4.5/drivers/media/rc/gpio-ir-recv.c +++ /dev/null @@ -1,205 +0,0 @@ -/* Copyright (c) 2012, Code Aurora Forum. All rights reserved. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 and - * only version 2 as published by the Free Software Foundation. - * - * 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. - */ - -#include <linux/kernel.h> -#include <linux/init.h> -#include <linux/module.h> -#include <linux/interrupt.h> -#include <linux/gpio.h> -#include <linux/slab.h> -#include <linux/platform_device.h> -#include <linux/irq.h> -#include <media/rc-core.h> -#include <media/gpio-ir-recv.h> - -#define GPIO_IR_DRIVER_NAME "gpio-rc-recv" -#define GPIO_IR_DEVICE_NAME "gpio_ir_recv" - -struct gpio_rc_dev { - struct rc_dev *rcdev; - int gpio_nr; - bool active_low; -}; - -static irqreturn_t gpio_ir_recv_irq(int irq, void *dev_id) -{ - struct gpio_rc_dev *gpio_dev = dev_id; - int gval; - int rc = 0; - enum raw_event_type type = IR_SPACE; - - gval = gpio_get_value_cansleep(gpio_dev->gpio_nr); - - if (gval < 0) - goto err_get_value; - - if (gpio_dev->active_low) - gval = !gval; - - if (gval == 1) - type = IR_PULSE; - - rc = ir_raw_event_store_edge(gpio_dev->rcdev, type); - if (rc < 0) - goto err_get_value; - - ir_raw_event_handle(gpio_dev->rcdev); - -err_get_value: - return IRQ_HANDLED; -} - -static int __devinit gpio_ir_recv_probe(struct platform_device *pdev) -{ - struct gpio_rc_dev *gpio_dev; - struct rc_dev *rcdev; - const struct gpio_ir_recv_platform_data *pdata = - pdev->dev.platform_data; - int rc; - - if (!pdata) - return -EINVAL; - - if (pdata->gpio_nr < 0) - return -EINVAL; - - gpio_dev = kzalloc(sizeof(struct gpio_rc_dev), GFP_KERNEL); - if (!gpio_dev) - return -ENOMEM; - - rcdev = rc_allocate_device(); - if (!rcdev) { - rc = -ENOMEM; - goto err_allocate_device; - } - - rcdev->driver_type = RC_DRIVER_IR_RAW; - rcdev->allowed_protos = RC_TYPE_ALL; - rcdev->input_name = GPIO_IR_DEVICE_NAME; - rcdev->input_id.bustype = BUS_HOST; - rcdev->driver_name = GPIO_IR_DRIVER_NAME; - rcdev->map_name = RC_MAP_EMPTY; - - gpio_dev->rcdev = rcdev; - gpio_dev->gpio_nr = pdata->gpio_nr; - gpio_dev->active_low = pdata->active_low; - - rc = gpio_request(pdata->gpio_nr, "gpio-ir-recv"); - if (rc < 0) - goto err_gpio_request; - rc = gpio_direction_input(pdata->gpio_nr); - if (rc < 0) - goto err_gpio_direction_input; - - rc = rc_register_device(rcdev); - if (rc < 0) { - dev_err(&pdev->dev, "failed to register rc device\n"); - goto err_register_rc_device; - } - - platform_set_drvdata(pdev, gpio_dev); - - rc = request_any_context_irq(gpio_to_irq(pdata->gpio_nr), - gpio_ir_recv_irq, - IRQF_TRIGGER_FALLING | IRQF_TRIGGER_RISING, - "gpio-ir-recv-irq", gpio_dev); - if (rc < 0) - goto err_request_irq; - - return 0; - -err_request_irq: - platform_set_drvdata(pdev, NULL); - rc_unregister_device(rcdev); -err_register_rc_device: -err_gpio_direction_input: - gpio_free(pdata->gpio_nr); -err_gpio_request: - rc_free_device(rcdev); - rcdev = NULL; -err_allocate_device: - kfree(gpio_dev); - return rc; -} - -static int __devexit gpio_ir_recv_remove(struct platform_device *pdev) -{ - struct gpio_rc_dev *gpio_dev = platform_get_drvdata(pdev); - - free_irq(gpio_to_irq(gpio_dev->gpio_nr), gpio_dev); - platform_set_drvdata(pdev, NULL); - rc_unregister_device(gpio_dev->rcdev); - gpio_free(gpio_dev->gpio_nr); - rc_free_device(gpio_dev->rcdev); - kfree(gpio_dev); - return 0; -} - -#ifdef CONFIG_PM -static int gpio_ir_recv_suspend(struct device *dev) -{ - struct platform_device *pdev = to_platform_device(dev); - struct gpio_rc_dev *gpio_dev = platform_get_drvdata(pdev); - - if (device_may_wakeup(dev)) - enable_irq_wake(gpio_to_irq(gpio_dev->gpio_nr)); - else - disable_irq(gpio_to_irq(gpio_dev->gpio_nr)); - - return 0; -} - -static int gpio_ir_recv_resume(struct device *dev) -{ - struct platform_device *pdev = to_platform_device(dev); - struct gpio_rc_dev *gpio_dev = platform_get_drvdata(pdev); - - if (device_may_wakeup(dev)) - disable_irq_wake(gpio_to_irq(gpio_dev->gpio_nr)); - else - enable_irq(gpio_to_irq(gpio_dev->gpio_nr)); - - return 0; -} - -static const struct dev_pm_ops gpio_ir_recv_pm_ops = { - .suspend = gpio_ir_recv_suspend, - .resume = gpio_ir_recv_resume, -}; -#endif - -static struct platform_driver gpio_ir_recv_driver = { - .probe = gpio_ir_recv_probe, - .remove = __devexit_p(gpio_ir_recv_remove), - .driver = { - .name = GPIO_IR_DRIVER_NAME, - .owner = THIS_MODULE, -#ifdef CONFIG_PM - .pm = &gpio_ir_recv_pm_ops, -#endif - }, -}; - -static int __init gpio_ir_recv_init(void) -{ - return platform_driver_register(&gpio_ir_recv_driver); -} -module_init(gpio_ir_recv_init); - -static void __exit gpio_ir_recv_exit(void) -{ - platform_driver_unregister(&gpio_ir_recv_driver); -} -module_exit(gpio_ir_recv_exit); - -MODULE_DESCRIPTION("GPIO IR Receiver driver"); -MODULE_LICENSE("GPL v2"); |