diff options
Diffstat (limited to 'drivers/media/video/em28xx/em28xx-input.c')
| -rw-r--r-- | drivers/media/video/em28xx/em28xx-input.c | 218 |
1 files changed, 0 insertions, 218 deletions
diff --git a/drivers/media/video/em28xx/em28xx-input.c b/drivers/media/video/em28xx/em28xx-input.c deleted file mode 100644 index eab3d9511af..00000000000 --- a/drivers/media/video/em28xx/em28xx-input.c +++ /dev/null @@ -1,218 +0,0 @@ -/* - handle em28xx IR remotes via linux kernel input layer. - - Copyright (C) 2005 Ludovico Cavedon <cavedon@sssup.it> - Markus Rechberger <mrechberger@gmail.com> - Mauro Carvalho Chehab <mchehab@infradead.org> - Sascha Sommer <saschasommer@freenet.de> - - 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. - - 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/delay.h> -#include <linux/interrupt.h> -#include <linux/input.h> -#include <linux/usb.h> - -#include "em28xx.h" - -#define EM28XX_SNAPSHOT_KEY KEY_CAMERA -#define EM28XX_SBUTTON_QUERY_INTERVAL 500 -#define EM28XX_R0C_USBSUSP_SNAPSHOT 0x20 - -static unsigned int ir_debug; -module_param(ir_debug, int, 0644); -MODULE_PARM_DESC(ir_debug, "enable debug messages [IR]"); - -#define dprintk(fmt, arg...) \ - if (ir_debug) { \ - printk(KERN_DEBUG "%s/ir: " fmt, ir->c.name , ## arg); \ - } - -/* ----------------------------------------------------------------------- */ - -int em28xx_get_key_terratec(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw) -{ - unsigned char b; - - /* poll IR chip */ - if (1 != i2c_master_recv(&ir->c, &b, 1)) { - dprintk("read error\n"); - return -EIO; - } - - /* it seems that 0xFE indicates that a button is still hold - down, while 0xff indicates that no button is hold - down. 0xfe sequences are sometimes interrupted by 0xFF */ - - dprintk("key %02x\n", b); - - if (b == 0xff) - return 0; - - if (b == 0xfe) - /* keep old data */ - return 1; - - *ir_key = b; - *ir_raw = b; - return 1; -} - - -int em28xx_get_key_em_haup(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw) -{ - unsigned char buf[2]; - unsigned char code; - - /* poll IR chip */ - if (2 != i2c_master_recv(&ir->c, buf, 2)) - return -EIO; - - /* Does eliminate repeated parity code */ - if (buf[1] == 0xff) - return 0; - - ir->old = buf[1]; - - /* Rearranges bits to the right order */ - code = ((buf[0]&0x01)<<5) | /* 0010 0000 */ - ((buf[0]&0x02)<<3) | /* 0001 0000 */ - ((buf[0]&0x04)<<1) | /* 0000 1000 */ - ((buf[0]&0x08)>>1) | /* 0000 0100 */ - ((buf[0]&0x10)>>3) | /* 0000 0010 */ - ((buf[0]&0x20)>>5); /* 0000 0001 */ - - dprintk("ir hauppauge (em2840): code=0x%02x (rcv=0x%02x)\n", - code, buf[0]); - - /* return key */ - *ir_key = code; - *ir_raw = code; - return 1; -} - -int em28xx_get_key_pinnacle_usb_grey(struct IR_i2c *ir, u32 *ir_key, - u32 *ir_raw) -{ - unsigned char buf[3]; - - /* poll IR chip */ - - if (3 != i2c_master_recv(&ir->c, buf, 3)) { - dprintk("read error\n"); - return -EIO; - } - - dprintk("key %02x\n", buf[2]&0x3f); - if (buf[0] != 0x00) - return 0; - - *ir_key = buf[2]&0x3f; - *ir_raw = buf[2]&0x3f; - - return 1; -} - -static void em28xx_query_sbutton(struct work_struct *work) -{ - /* Poll the register and see if the button is depressed */ - struct em28xx *dev = - container_of(work, struct em28xx, sbutton_query_work.work); - int ret; - - ret = em28xx_read_reg(dev, EM28XX_R0C_USBSUSP); - - if (ret & EM28XX_R0C_USBSUSP_SNAPSHOT) { - u8 cleared; - /* Button is depressed, clear the register */ - cleared = ((u8) ret) & ~EM28XX_R0C_USBSUSP_SNAPSHOT; - em28xx_write_regs(dev, EM28XX_R0C_USBSUSP, &cleared, 1); - - /* Not emulate the keypress */ - input_report_key(dev->sbutton_input_dev, EM28XX_SNAPSHOT_KEY, - 1); - /* Now unpress the key */ - input_report_key(dev->sbutton_input_dev, EM28XX_SNAPSHOT_KEY, - 0); - } - - /* Schedule next poll */ - schedule_delayed_work(&dev->sbutton_query_work, - msecs_to_jiffies(EM28XX_SBUTTON_QUERY_INTERVAL)); -} - -void em28xx_register_snapshot_button(struct em28xx *dev) -{ - struct input_dev *input_dev; - int err; - - em28xx_info("Registering snapshot button...\n"); - input_dev = input_allocate_device(); - if (!input_dev) { - em28xx_errdev("input_allocate_device failed\n"); - return; - } - - usb_make_path(dev->udev, dev->snapshot_button_path, - sizeof(dev->snapshot_button_path)); - strlcat(dev->snapshot_button_path, "/sbutton", - sizeof(dev->snapshot_button_path)); - INIT_DELAYED_WORK(&dev->sbutton_query_work, em28xx_query_sbutton); - - input_dev->name = "em28xx snapshot button"; - input_dev->phys = dev->snapshot_button_path; - input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_REP); - set_bit(EM28XX_SNAPSHOT_KEY, input_dev->keybit); - input_dev->keycodesize = 0; - input_dev->keycodemax = 0; - input_dev->id.bustype = BUS_USB; - input_dev->id.vendor = le16_to_cpu(dev->udev->descriptor.idVendor); - input_dev->id.product = le16_to_cpu(dev->udev->descriptor.idProduct); - input_dev->id.version = 1; - input_dev->dev.parent = &dev->udev->dev; - - err = input_register_device(input_dev); - if (err) { - em28xx_errdev("input_register_device failed\n"); - input_free_device(input_dev); - return; - } - - dev->sbutton_input_dev = input_dev; - schedule_delayed_work(&dev->sbutton_query_work, - msecs_to_jiffies(EM28XX_SBUTTON_QUERY_INTERVAL)); - return; - -} - -void em28xx_deregister_snapshot_button(struct em28xx *dev) -{ - if (dev->sbutton_input_dev != NULL) { - em28xx_info("Deregistering snapshot button\n"); - cancel_rearming_delayed_work(&dev->sbutton_query_work); - input_unregister_device(dev->sbutton_input_dev); - dev->sbutton_input_dev = NULL; - } - return; -} - -/* ---------------------------------------------------------------------- - * Local variables: - * c-basic-offset: 8 - * End: - */ |