diff options
Diffstat (limited to 'drivers/media/video/cx231xx/cx231xx-input.c')
| -rw-r--r-- | drivers/media/video/cx231xx/cx231xx-input.c | 119 |
1 files changed, 0 insertions, 119 deletions
diff --git a/drivers/media/video/cx231xx/cx231xx-input.c b/drivers/media/video/cx231xx/cx231xx-input.c deleted file mode 100644 index 96176e9db5a..00000000000 --- a/drivers/media/video/cx231xx/cx231xx-input.c +++ /dev/null @@ -1,119 +0,0 @@ -/* - * cx231xx IR glue driver - * - * Copyright (C) 2010 Mauro Carvalho Chehab <mchehab@redhat.com> - * - * Polaris (cx231xx) has its support for IR's with a design close to MCE. - * however, a few designs are using an external I2C chip for IR, instead - * of using the one provided by the chip. - * This driver provides support for those extra devices - * - * 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. - * - * 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 "cx231xx.h" -#include <linux/usb.h> -#include <linux/slab.h> - -#define MODULE_NAME "cx231xx-input" - -static int get_key_isdbt(struct IR_i2c *ir, u32 *ir_key, - u32 *ir_raw) -{ - int rc; - u8 cmd, scancode; - - dev_dbg(&ir->rc->input_dev->dev, "%s\n", __func__); - - /* poll IR chip */ - rc = i2c_master_recv(ir->c, &cmd, 1); - if (rc < 0) - return rc; - if (rc != 1) - 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 */ - - if (cmd == 0xff) - return 0; - - scancode = - ((cmd & 0x01) ? 0x80 : 0) | - ((cmd & 0x02) ? 0x40 : 0) | - ((cmd & 0x04) ? 0x20 : 0) | - ((cmd & 0x08) ? 0x10 : 0) | - ((cmd & 0x10) ? 0x08 : 0) | - ((cmd & 0x20) ? 0x04 : 0) | - ((cmd & 0x40) ? 0x02 : 0) | - ((cmd & 0x80) ? 0x01 : 0); - - dev_dbg(&ir->rc->input_dev->dev, "cmd %02x, scan = %02x\n", - cmd, scancode); - - *ir_key = scancode; - *ir_raw = scancode; - return 1; -} - -int cx231xx_ir_init(struct cx231xx *dev) -{ - struct i2c_board_info info; - u8 ir_i2c_bus; - - dev_dbg(&dev->udev->dev, "%s\n", __func__); - - /* Only initialize if a rc keycode map is defined */ - if (!cx231xx_boards[dev->model].rc_map_name) - return -ENODEV; - - request_module("ir-kbd-i2c"); - - memset(&info, 0, sizeof(struct i2c_board_info)); - memset(&dev->init_data, 0, sizeof(dev->init_data)); - dev->init_data.rc_dev = rc_allocate_device(); - if (!dev->init_data.rc_dev) - return -ENOMEM; - - dev->init_data.name = cx231xx_boards[dev->model].name; - - strlcpy(info.type, "ir_video", I2C_NAME_SIZE); - info.platform_data = &dev->init_data; - - /* - * Board-dependent values - * - * For now, there's just one type of hardware design using - * an i2c device. - */ - dev->init_data.get_key = get_key_isdbt; - dev->init_data.ir_codes = cx231xx_boards[dev->model].rc_map_name; - /* The i2c micro-controller only outputs the cmd part of NEC protocol */ - dev->init_data.rc_dev->scanmask = 0xff; - dev->init_data.rc_dev->driver_name = "cx231xx"; - dev->init_data.type = RC_TYPE_NEC; - info.addr = 0x30; - - /* Load and bind ir-kbd-i2c */ - ir_i2c_bus = cx231xx_boards[dev->model].ir_i2c_master; - dev_dbg(&dev->udev->dev, "Trying to bind ir at bus %d, addr 0x%02x\n", - ir_i2c_bus, info.addr); - dev->ir_i2c_client = i2c_new_device(&dev->i2c_bus[ir_i2c_bus].i2c_adap, &info); - - return 0; -} - -void cx231xx_ir_exit(struct cx231xx *dev) -{ - if (dev->ir_i2c_client) - i2c_unregister_device(dev->ir_i2c_client); - dev->ir_i2c_client = NULL; -} |