mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-25 22:45:23 +07:00
1a1934fab0
The allowed and enabled protocol masks need to be expanded to be per filter type in order to support wakeup filter protocol selection. To ease that process abstract access to the rc_dev::allowed_protos and rc_dev::enabled_protocols members with inline functions. Signed-off-by: James Hogan <james.hogan@imgtec.com> Reviewed-by: Antti Seppälä <a.seppala@gmail.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
897 lines
23 KiB
C
897 lines
23 KiB
C
/*
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handle em28xx IR remotes via linux kernel input layer.
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Copyright (C) 2005 Ludovico Cavedon <cavedon@sssup.it>
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Markus Rechberger <mrechberger@gmail.com>
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Mauro Carvalho Chehab <mchehab@infradead.org>
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Sascha Sommer <saschasommer@freenet.de>
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#include <linux/module.h>
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#include <linux/init.h>
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#include <linux/delay.h>
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#include <linux/interrupt.h>
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#include <linux/usb.h>
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#include <linux/slab.h>
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#include "em28xx.h"
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#define EM28XX_SNAPSHOT_KEY KEY_CAMERA
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#define EM28XX_BUTTONS_DEBOUNCED_QUERY_INTERVAL 500 /* [ms] */
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#define EM28XX_BUTTONS_VOLATILE_QUERY_INTERVAL 100 /* [ms] */
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static unsigned int ir_debug;
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module_param(ir_debug, int, 0644);
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MODULE_PARM_DESC(ir_debug, "enable debug messages [IR]");
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#define MODULE_NAME "em28xx"
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#define dprintk(fmt, arg...) \
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if (ir_debug) { \
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printk(KERN_DEBUG "%s/ir: " fmt, ir->name , ## arg); \
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}
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/**********************************************************
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Polling structure used by em28xx IR's
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**********************************************************/
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struct em28xx_ir_poll_result {
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unsigned int toggle_bit:1;
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unsigned int read_count:7;
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u32 scancode;
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};
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struct em28xx_IR {
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struct em28xx *dev;
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struct rc_dev *rc;
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char name[32];
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char phys[32];
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/* poll decoder */
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int polling;
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struct delayed_work work;
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unsigned int full_code:1;
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unsigned int last_readcount;
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u64 rc_type;
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/* i2c slave address of external device (if used) */
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u16 i2c_dev_addr;
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int (*get_key_i2c)(struct i2c_client *, u32 *);
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int (*get_key)(struct em28xx_IR *, struct em28xx_ir_poll_result *);
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};
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/**********************************************************
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I2C IR based get keycodes - should be used with ir-kbd-i2c
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**********************************************************/
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static int em28xx_get_key_terratec(struct i2c_client *i2c_dev, u32 *ir_key)
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{
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unsigned char b;
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/* poll IR chip */
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if (1 != i2c_master_recv(i2c_dev, &b, 1))
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return -EIO;
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/* it seems that 0xFE indicates that a button is still hold
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down, while 0xff indicates that no button is hold down. */
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if (b == 0xff)
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return 0;
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if (b == 0xfe)
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/* keep old data */
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return 1;
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*ir_key = b;
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return 1;
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}
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static int em28xx_get_key_em_haup(struct i2c_client *i2c_dev, u32 *ir_key)
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{
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unsigned char buf[2];
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u16 code;
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int size;
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/* poll IR chip */
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size = i2c_master_recv(i2c_dev, buf, sizeof(buf));
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if (size != 2)
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return -EIO;
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/* Does eliminate repeated parity code */
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if (buf[1] == 0xff)
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return 0;
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/*
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* Rearranges bits to the right order.
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* The bit order were determined experimentally by using
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* The original Hauppauge Grey IR and another RC5 that uses addr=0x08
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* The RC5 code has 14 bits, but we've experimentally determined
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* the meaning for only 11 bits.
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* So, the code translation is not complete. Yet, it is enough to
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* work with the provided RC5 IR.
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*/
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code =
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((buf[0] & 0x01) ? 0x0020 : 0) | /* 0010 0000 */
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((buf[0] & 0x02) ? 0x0010 : 0) | /* 0001 0000 */
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((buf[0] & 0x04) ? 0x0008 : 0) | /* 0000 1000 */
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((buf[0] & 0x08) ? 0x0004 : 0) | /* 0000 0100 */
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((buf[0] & 0x10) ? 0x0002 : 0) | /* 0000 0010 */
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((buf[0] & 0x20) ? 0x0001 : 0) | /* 0000 0001 */
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((buf[1] & 0x08) ? 0x1000 : 0) | /* 0001 0000 */
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((buf[1] & 0x10) ? 0x0800 : 0) | /* 0000 1000 */
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((buf[1] & 0x20) ? 0x0400 : 0) | /* 0000 0100 */
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((buf[1] & 0x40) ? 0x0200 : 0) | /* 0000 0010 */
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((buf[1] & 0x80) ? 0x0100 : 0); /* 0000 0001 */
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/* return key */
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*ir_key = code;
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return 1;
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}
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static int em28xx_get_key_pinnacle_usb_grey(struct i2c_client *i2c_dev,
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u32 *ir_key)
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{
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unsigned char buf[3];
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/* poll IR chip */
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if (3 != i2c_master_recv(i2c_dev, buf, 3))
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return -EIO;
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if (buf[0] != 0x00)
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return 0;
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*ir_key = buf[2]&0x3f;
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return 1;
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}
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static int em28xx_get_key_winfast_usbii_deluxe(struct i2c_client *i2c_dev,
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u32 *ir_key)
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{
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unsigned char subaddr, keydetect, key;
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struct i2c_msg msg[] = { { .addr = i2c_dev->addr, .flags = 0, .buf = &subaddr, .len = 1},
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{ .addr = i2c_dev->addr, .flags = I2C_M_RD, .buf = &keydetect, .len = 1} };
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subaddr = 0x10;
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if (2 != i2c_transfer(i2c_dev->adapter, msg, 2))
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return -EIO;
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if (keydetect == 0x00)
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return 0;
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subaddr = 0x00;
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msg[1].buf = &key;
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if (2 != i2c_transfer(i2c_dev->adapter, msg, 2))
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return -EIO;
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if (key == 0x00)
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return 0;
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*ir_key = key;
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return 1;
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}
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/**********************************************************
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Poll based get keycode functions
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**********************************************************/
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/* This is for the em2860/em2880 */
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static int default_polling_getkey(struct em28xx_IR *ir,
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struct em28xx_ir_poll_result *poll_result)
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{
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struct em28xx *dev = ir->dev;
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int rc;
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u8 msg[3] = { 0, 0, 0 };
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/* Read key toggle, brand, and key code
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on registers 0x45, 0x46 and 0x47
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*/
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rc = dev->em28xx_read_reg_req_len(dev, 0, EM28XX_R45_IR,
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msg, sizeof(msg));
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if (rc < 0)
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return rc;
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/* Infrared toggle (Reg 0x45[7]) */
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poll_result->toggle_bit = (msg[0] >> 7);
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/* Infrared read count (Reg 0x45[6:0] */
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poll_result->read_count = (msg[0] & 0x7f);
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/* Remote Control Address/Data (Regs 0x46/0x47) */
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poll_result->scancode = msg[1] << 8 | msg[2];
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return 0;
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}
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static int em2874_polling_getkey(struct em28xx_IR *ir,
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struct em28xx_ir_poll_result *poll_result)
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{
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struct em28xx *dev = ir->dev;
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int rc;
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u8 msg[5] = { 0, 0, 0, 0, 0 };
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/* Read key toggle, brand, and key code
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on registers 0x51-55
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*/
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rc = dev->em28xx_read_reg_req_len(dev, 0, EM2874_R51_IR,
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msg, sizeof(msg));
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if (rc < 0)
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return rc;
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/* Infrared toggle (Reg 0x51[7]) */
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poll_result->toggle_bit = (msg[0] >> 7);
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/* Infrared read count (Reg 0x51[6:0] */
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poll_result->read_count = (msg[0] & 0x7f);
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/*
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* Remote Control Address (Reg 0x52)
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* Remote Control Data (Reg 0x53-0x55)
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*/
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switch (ir->rc_type) {
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case RC_BIT_RC5:
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poll_result->scancode = msg[1] << 8 | msg[2];
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break;
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case RC_BIT_NEC:
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if ((msg[3] ^ msg[4]) != 0xff) /* 32 bits NEC */
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poll_result->scancode = (msg[1] << 24) |
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(msg[2] << 16) |
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(msg[3] << 8) |
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msg[4];
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else if ((msg[1] ^ msg[2]) != 0xff) /* 24 bits NEC */
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poll_result->scancode = (msg[1] << 16) |
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(msg[2] << 8) |
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msg[3];
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else /* Normal NEC */
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poll_result->scancode = msg[1] << 8 | msg[3];
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break;
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case RC_BIT_RC6_0:
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poll_result->scancode = msg[1] << 8 | msg[2];
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break;
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default:
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poll_result->scancode = (msg[1] << 24) | (msg[2] << 16) |
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(msg[3] << 8) | msg[4];
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break;
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}
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return 0;
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}
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/**********************************************************
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Polling code for em28xx
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**********************************************************/
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static int em28xx_i2c_ir_handle_key(struct em28xx_IR *ir)
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{
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struct em28xx *dev = ir->dev;
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static u32 ir_key;
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int rc;
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struct i2c_client client;
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client.adapter = &ir->dev->i2c_adap[dev->def_i2c_bus];
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client.addr = ir->i2c_dev_addr;
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rc = ir->get_key_i2c(&client, &ir_key);
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if (rc < 0) {
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dprintk("ir->get_key_i2c() failed: %d\n", rc);
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return rc;
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}
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if (rc) {
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dprintk("%s: keycode = 0x%04x\n", __func__, ir_key);
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rc_keydown(ir->rc, ir_key, 0);
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}
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return 0;
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}
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static void em28xx_ir_handle_key(struct em28xx_IR *ir)
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{
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int result;
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struct em28xx_ir_poll_result poll_result;
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/* read the registers containing the IR status */
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result = ir->get_key(ir, &poll_result);
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if (unlikely(result < 0)) {
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dprintk("ir->get_key() failed: %d\n", result);
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return;
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}
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if (unlikely(poll_result.read_count != ir->last_readcount)) {
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dprintk("%s: toggle: %d, count: %d, key 0x%04x\n", __func__,
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poll_result.toggle_bit, poll_result.read_count,
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poll_result.scancode);
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if (ir->full_code)
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rc_keydown(ir->rc,
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poll_result.scancode,
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poll_result.toggle_bit);
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else
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rc_keydown(ir->rc,
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poll_result.scancode & 0xff,
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poll_result.toggle_bit);
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if (ir->dev->chip_id == CHIP_ID_EM2874 ||
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ir->dev->chip_id == CHIP_ID_EM2884)
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/* The em2874 clears the readcount field every time the
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register is read. The em2860/2880 datasheet says that it
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is supposed to clear the readcount, but it doesn't. So with
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the em2874, we are looking for a non-zero read count as
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opposed to a readcount that is incrementing */
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ir->last_readcount = 0;
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else
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ir->last_readcount = poll_result.read_count;
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}
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}
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static void em28xx_ir_work(struct work_struct *work)
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{
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struct em28xx_IR *ir = container_of(work, struct em28xx_IR, work.work);
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if (ir->i2c_dev_addr) /* external i2c device */
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em28xx_i2c_ir_handle_key(ir);
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else /* internal device */
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em28xx_ir_handle_key(ir);
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schedule_delayed_work(&ir->work, msecs_to_jiffies(ir->polling));
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}
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static int em28xx_ir_start(struct rc_dev *rc)
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{
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struct em28xx_IR *ir = rc->priv;
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INIT_DELAYED_WORK(&ir->work, em28xx_ir_work);
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schedule_delayed_work(&ir->work, 0);
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return 0;
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}
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static void em28xx_ir_stop(struct rc_dev *rc)
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{
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struct em28xx_IR *ir = rc->priv;
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cancel_delayed_work_sync(&ir->work);
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}
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static int em2860_ir_change_protocol(struct rc_dev *rc_dev, u64 *rc_type)
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{
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struct em28xx_IR *ir = rc_dev->priv;
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struct em28xx *dev = ir->dev;
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/* Adjust xclk based on IR table for RC5/NEC tables */
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if (*rc_type & RC_BIT_RC5) {
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dev->board.xclk |= EM28XX_XCLK_IR_RC5_MODE;
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ir->full_code = 1;
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*rc_type = RC_BIT_RC5;
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} else if (*rc_type & RC_BIT_NEC) {
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dev->board.xclk &= ~EM28XX_XCLK_IR_RC5_MODE;
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ir->full_code = 1;
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*rc_type = RC_BIT_NEC;
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} else if (*rc_type & RC_BIT_UNKNOWN) {
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*rc_type = RC_BIT_UNKNOWN;
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} else {
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*rc_type = ir->rc_type;
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return -EINVAL;
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}
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em28xx_write_reg_bits(dev, EM28XX_R0F_XCLK, dev->board.xclk,
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EM28XX_XCLK_IR_RC5_MODE);
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ir->rc_type = *rc_type;
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return 0;
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}
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static int em2874_ir_change_protocol(struct rc_dev *rc_dev, u64 *rc_type)
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{
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struct em28xx_IR *ir = rc_dev->priv;
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struct em28xx *dev = ir->dev;
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u8 ir_config = EM2874_IR_RC5;
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/* Adjust xclk and set type based on IR table for RC5/NEC/RC6 tables */
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if (*rc_type & RC_BIT_RC5) {
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dev->board.xclk |= EM28XX_XCLK_IR_RC5_MODE;
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ir->full_code = 1;
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*rc_type = RC_BIT_RC5;
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} else if (*rc_type & RC_BIT_NEC) {
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dev->board.xclk &= ~EM28XX_XCLK_IR_RC5_MODE;
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ir_config = EM2874_IR_NEC | EM2874_IR_NEC_NO_PARITY;
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ir->full_code = 1;
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*rc_type = RC_BIT_NEC;
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} else if (*rc_type & RC_BIT_RC6_0) {
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dev->board.xclk |= EM28XX_XCLK_IR_RC5_MODE;
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ir_config = EM2874_IR_RC6_MODE_0;
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ir->full_code = 1;
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*rc_type = RC_BIT_RC6_0;
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} else if (*rc_type & RC_BIT_UNKNOWN) {
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*rc_type = RC_BIT_UNKNOWN;
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} else {
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*rc_type = ir->rc_type;
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return -EINVAL;
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}
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em28xx_write_regs(dev, EM2874_R50_IR_CONFIG, &ir_config, 1);
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em28xx_write_reg_bits(dev, EM28XX_R0F_XCLK, dev->board.xclk,
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EM28XX_XCLK_IR_RC5_MODE);
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ir->rc_type = *rc_type;
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return 0;
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}
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static int em28xx_ir_change_protocol(struct rc_dev *rc_dev, u64 *rc_type)
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{
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struct em28xx_IR *ir = rc_dev->priv;
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struct em28xx *dev = ir->dev;
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/* Setup the proper handler based on the chip */
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switch (dev->chip_id) {
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case CHIP_ID_EM2860:
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case CHIP_ID_EM2883:
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return em2860_ir_change_protocol(rc_dev, rc_type);
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case CHIP_ID_EM2884:
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case CHIP_ID_EM2874:
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case CHIP_ID_EM28174:
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case CHIP_ID_EM28178:
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return em2874_ir_change_protocol(rc_dev, rc_type);
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default:
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printk("Unrecognized em28xx chip id 0x%02x: IR not supported\n",
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dev->chip_id);
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return -EINVAL;
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}
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}
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static int em28xx_probe_i2c_ir(struct em28xx *dev)
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{
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int i = 0;
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/* Leadtek winfast tv USBII deluxe can find a non working IR-device */
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/* at address 0x18, so if that address is needed for another board in */
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/* the future, please put it after 0x1f. */
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const unsigned short addr_list[] = {
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0x1f, 0x30, 0x47, I2C_CLIENT_END
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};
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while (addr_list[i] != I2C_CLIENT_END) {
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if (i2c_probe_func_quick_read(&dev->i2c_adap[dev->def_i2c_bus], addr_list[i]) == 1)
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return addr_list[i];
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i++;
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}
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return -ENODEV;
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}
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/**********************************************************
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Handle buttons
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**********************************************************/
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static void em28xx_query_buttons(struct work_struct *work)
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|
{
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|
struct em28xx *dev =
|
|
container_of(work, struct em28xx, buttons_query_work.work);
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|
u8 i, j;
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|
int regval;
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|
bool is_pressed, was_pressed;
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const struct em28xx_led *led;
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|
|
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/* Poll and evaluate all addresses */
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for (i = 0; i < dev->num_button_polling_addresses; i++) {
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/* Read value from register */
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regval = em28xx_read_reg(dev, dev->button_polling_addresses[i]);
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if (regval < 0)
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continue;
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/* Check states of the buttons and act */
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j = 0;
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while (dev->board.buttons[j].role >= 0 &&
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dev->board.buttons[j].role < EM28XX_NUM_BUTTON_ROLES) {
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struct em28xx_button *button = &dev->board.buttons[j];
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/* Check if button uses the current address */
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if (button->reg_r != dev->button_polling_addresses[i]) {
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j++;
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continue;
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|
}
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/* Determine if button is and was pressed last time */
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is_pressed = regval & button->mask;
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was_pressed = dev->button_polling_last_values[i]
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& button->mask;
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if (button->inverted) {
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is_pressed = !is_pressed;
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was_pressed = !was_pressed;
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}
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/* Clear button state (if needed) */
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if (is_pressed && button->reg_clearing)
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em28xx_write_reg(dev, button->reg_clearing,
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(~regval & button->mask)
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| (regval & ~button->mask));
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/* Handle button state */
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if (!is_pressed || was_pressed) {
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j++;
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continue;
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}
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switch (button->role) {
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case EM28XX_BUTTON_SNAPSHOT:
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/* Emulate the keypress */
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input_report_key(dev->sbutton_input_dev,
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EM28XX_SNAPSHOT_KEY, 1);
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/* Unpress the key */
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input_report_key(dev->sbutton_input_dev,
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EM28XX_SNAPSHOT_KEY, 0);
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break;
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case EM28XX_BUTTON_ILLUMINATION:
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led = em28xx_find_led(dev,
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EM28XX_LED_ILLUMINATION);
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/* Switch illumination LED on/off */
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if (led)
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em28xx_toggle_reg_bits(dev,
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led->gpio_reg,
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led->gpio_mask);
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break;
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default:
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|
WARN_ONCE(1, "BUG: unhandled button role.");
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|
}
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/* Next button */
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j++;
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}
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/* Save current value for comparison during the next polling */
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dev->button_polling_last_values[i] = regval;
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}
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/* Schedule next poll */
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schedule_delayed_work(&dev->buttons_query_work,
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msecs_to_jiffies(dev->button_polling_interval));
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}
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|
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static int em28xx_register_snapshot_button(struct em28xx *dev)
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{
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struct input_dev *input_dev;
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int err;
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|
|
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em28xx_info("Registering snapshot button...\n");
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input_dev = input_allocate_device();
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if (!input_dev)
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return -ENOMEM;
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|
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usb_make_path(dev->udev, dev->snapshot_button_path,
|
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sizeof(dev->snapshot_button_path));
|
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strlcat(dev->snapshot_button_path, "/sbutton",
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sizeof(dev->snapshot_button_path));
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|
|
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input_dev->name = "em28xx snapshot button";
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input_dev->phys = dev->snapshot_button_path;
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input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_REP);
|
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set_bit(EM28XX_SNAPSHOT_KEY, input_dev->keybit);
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|
input_dev->keycodesize = 0;
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|
input_dev->keycodemax = 0;
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input_dev->id.bustype = BUS_USB;
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|
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 err;
|
|
}
|
|
|
|
dev->sbutton_input_dev = input_dev;
|
|
return 0;
|
|
}
|
|
|
|
static void em28xx_init_buttons(struct em28xx *dev)
|
|
{
|
|
u8 i = 0, j = 0;
|
|
bool addr_new = 0;
|
|
|
|
dev->button_polling_interval = EM28XX_BUTTONS_DEBOUNCED_QUERY_INTERVAL;
|
|
while (dev->board.buttons[i].role >= 0 &&
|
|
dev->board.buttons[i].role < EM28XX_NUM_BUTTON_ROLES) {
|
|
struct em28xx_button *button = &dev->board.buttons[i];
|
|
/* Check if polling address is already on the list */
|
|
addr_new = 1;
|
|
for (j = 0; j < dev->num_button_polling_addresses; j++) {
|
|
if (button->reg_r == dev->button_polling_addresses[j]) {
|
|
addr_new = 0;
|
|
break;
|
|
}
|
|
}
|
|
/* Check if max. number of polling addresses is exceeded */
|
|
if (addr_new && dev->num_button_polling_addresses
|
|
>= EM28XX_NUM_BUTTON_ADDRESSES_MAX) {
|
|
WARN_ONCE(1, "BUG: maximum number of button polling addresses exceeded.");
|
|
goto next_button;
|
|
}
|
|
/* Button role specific checks and actions */
|
|
if (button->role == EM28XX_BUTTON_SNAPSHOT) {
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|
/* Register input device */
|
|
if (em28xx_register_snapshot_button(dev) < 0)
|
|
goto next_button;
|
|
} else if (button->role == EM28XX_BUTTON_ILLUMINATION) {
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|
/* Check sanity */
|
|
if (!em28xx_find_led(dev, EM28XX_LED_ILLUMINATION)) {
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|
em28xx_errdev("BUG: illumination button defined, but no illumination LED.\n");
|
|
goto next_button;
|
|
}
|
|
}
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|
/* Add read address to list of polling addresses */
|
|
if (addr_new) {
|
|
unsigned int index = dev->num_button_polling_addresses;
|
|
dev->button_polling_addresses[index] = button->reg_r;
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|
dev->num_button_polling_addresses++;
|
|
}
|
|
/* Reduce polling interval if necessary */
|
|
if (!button->reg_clearing)
|
|
dev->button_polling_interval =
|
|
EM28XX_BUTTONS_VOLATILE_QUERY_INTERVAL;
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|
next_button:
|
|
/* Next button */
|
|
i++;
|
|
}
|
|
|
|
/* Start polling */
|
|
if (dev->num_button_polling_addresses) {
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|
memset(dev->button_polling_last_values, 0,
|
|
EM28XX_NUM_BUTTON_ADDRESSES_MAX);
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|
INIT_DELAYED_WORK(&dev->buttons_query_work,
|
|
em28xx_query_buttons);
|
|
schedule_delayed_work(&dev->buttons_query_work,
|
|
msecs_to_jiffies(dev->button_polling_interval));
|
|
}
|
|
}
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|
|
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static void em28xx_shutdown_buttons(struct em28xx *dev)
|
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{
|
|
/* Cancel polling */
|
|
cancel_delayed_work_sync(&dev->buttons_query_work);
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|
/* Clear polling addresses list */
|
|
dev->num_button_polling_addresses = 0;
|
|
/* Deregister input devices */
|
|
if (dev->sbutton_input_dev != NULL) {
|
|
em28xx_info("Deregistering snapshot button\n");
|
|
input_unregister_device(dev->sbutton_input_dev);
|
|
dev->sbutton_input_dev = NULL;
|
|
}
|
|
}
|
|
|
|
static int em28xx_ir_init(struct em28xx *dev)
|
|
{
|
|
struct em28xx_IR *ir;
|
|
struct rc_dev *rc;
|
|
int err = -ENOMEM;
|
|
u64 rc_type;
|
|
u16 i2c_rc_dev_addr = 0;
|
|
|
|
if (dev->is_audio_only) {
|
|
/* Shouldn't initialize IR for this interface */
|
|
return 0;
|
|
}
|
|
|
|
kref_get(&dev->ref);
|
|
|
|
if (dev->board.buttons)
|
|
em28xx_init_buttons(dev);
|
|
|
|
if (dev->board.has_ir_i2c) {
|
|
i2c_rc_dev_addr = em28xx_probe_i2c_ir(dev);
|
|
if (!i2c_rc_dev_addr) {
|
|
dev->board.has_ir_i2c = 0;
|
|
em28xx_warn("No i2c IR remote control device found.\n");
|
|
return -ENODEV;
|
|
}
|
|
}
|
|
|
|
if (dev->board.ir_codes == NULL && !dev->board.has_ir_i2c) {
|
|
/* No remote control support */
|
|
em28xx_warn("Remote control support is not available for "
|
|
"this card.\n");
|
|
return 0;
|
|
}
|
|
|
|
em28xx_info("Registering input extension\n");
|
|
|
|
ir = kzalloc(sizeof(*ir), GFP_KERNEL);
|
|
rc = rc_allocate_device();
|
|
if (!ir || !rc)
|
|
goto error;
|
|
|
|
/* record handles to ourself */
|
|
ir->dev = dev;
|
|
dev->ir = ir;
|
|
ir->rc = rc;
|
|
|
|
rc->priv = ir;
|
|
rc->open = em28xx_ir_start;
|
|
rc->close = em28xx_ir_stop;
|
|
|
|
if (dev->board.has_ir_i2c) { /* external i2c device */
|
|
switch (dev->model) {
|
|
case EM2800_BOARD_TERRATEC_CINERGY_200:
|
|
case EM2820_BOARD_TERRATEC_CINERGY_250:
|
|
rc->map_name = RC_MAP_EM_TERRATEC;
|
|
ir->get_key_i2c = em28xx_get_key_terratec;
|
|
break;
|
|
case EM2820_BOARD_PINNACLE_USB_2:
|
|
rc->map_name = RC_MAP_PINNACLE_GREY;
|
|
ir->get_key_i2c = em28xx_get_key_pinnacle_usb_grey;
|
|
break;
|
|
case EM2820_BOARD_HAUPPAUGE_WINTV_USB_2:
|
|
rc->map_name = RC_MAP_HAUPPAUGE;
|
|
ir->get_key_i2c = em28xx_get_key_em_haup;
|
|
rc_set_allowed_protocols(rc, RC_BIT_RC5);
|
|
break;
|
|
case EM2820_BOARD_LEADTEK_WINFAST_USBII_DELUXE:
|
|
rc->map_name = RC_MAP_WINFAST_USBII_DELUXE;
|
|
ir->get_key_i2c = em28xx_get_key_winfast_usbii_deluxe;
|
|
break;
|
|
default:
|
|
err = -ENODEV;
|
|
goto error;
|
|
}
|
|
|
|
ir->i2c_dev_addr = i2c_rc_dev_addr;
|
|
} else { /* internal device */
|
|
switch (dev->chip_id) {
|
|
case CHIP_ID_EM2860:
|
|
case CHIP_ID_EM2883:
|
|
rc_set_allowed_protocols(rc, RC_BIT_RC5 | RC_BIT_NEC);
|
|
ir->get_key = default_polling_getkey;
|
|
break;
|
|
case CHIP_ID_EM2884:
|
|
case CHIP_ID_EM2874:
|
|
case CHIP_ID_EM28174:
|
|
case CHIP_ID_EM28178:
|
|
ir->get_key = em2874_polling_getkey;
|
|
rc_set_allowed_protocols(rc, RC_BIT_RC5 | RC_BIT_NEC |
|
|
RC_BIT_RC6_0);
|
|
break;
|
|
default:
|
|
err = -ENODEV;
|
|
goto error;
|
|
}
|
|
|
|
rc->change_protocol = em28xx_ir_change_protocol;
|
|
rc->map_name = dev->board.ir_codes;
|
|
|
|
/* By default, keep protocol field untouched */
|
|
rc_type = RC_BIT_UNKNOWN;
|
|
err = em28xx_ir_change_protocol(rc, &rc_type);
|
|
if (err)
|
|
goto error;
|
|
}
|
|
|
|
/* This is how often we ask the chip for IR information */
|
|
ir->polling = 100; /* ms */
|
|
|
|
/* init input device */
|
|
snprintf(ir->name, sizeof(ir->name), "em28xx IR (%s)", dev->name);
|
|
|
|
usb_make_path(dev->udev, ir->phys, sizeof(ir->phys));
|
|
strlcat(ir->phys, "/input0", sizeof(ir->phys));
|
|
|
|
rc->input_name = ir->name;
|
|
rc->input_phys = ir->phys;
|
|
rc->input_id.bustype = BUS_USB;
|
|
rc->input_id.version = 1;
|
|
rc->input_id.vendor = le16_to_cpu(dev->udev->descriptor.idVendor);
|
|
rc->input_id.product = le16_to_cpu(dev->udev->descriptor.idProduct);
|
|
rc->dev.parent = &dev->udev->dev;
|
|
rc->driver_name = MODULE_NAME;
|
|
|
|
/* all done */
|
|
err = rc_register_device(rc);
|
|
if (err)
|
|
goto error;
|
|
|
|
em28xx_info("Input extension successfully initalized\n");
|
|
|
|
return 0;
|
|
|
|
error:
|
|
dev->ir = NULL;
|
|
rc_free_device(rc);
|
|
kfree(ir);
|
|
return err;
|
|
}
|
|
|
|
static int em28xx_ir_fini(struct em28xx *dev)
|
|
{
|
|
struct em28xx_IR *ir = dev->ir;
|
|
|
|
if (dev->is_audio_only) {
|
|
/* Shouldn't initialize IR for this interface */
|
|
return 0;
|
|
}
|
|
|
|
em28xx_info("Closing input extension");
|
|
|
|
em28xx_shutdown_buttons(dev);
|
|
|
|
/* skip detach on non attached boards */
|
|
if (!ir)
|
|
goto ref_put;
|
|
|
|
if (ir->rc)
|
|
rc_unregister_device(ir->rc);
|
|
|
|
/* done */
|
|
kfree(ir);
|
|
dev->ir = NULL;
|
|
|
|
ref_put:
|
|
kref_put(&dev->ref, em28xx_free_device);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int em28xx_ir_suspend(struct em28xx *dev)
|
|
{
|
|
struct em28xx_IR *ir = dev->ir;
|
|
|
|
if (dev->is_audio_only)
|
|
return 0;
|
|
|
|
em28xx_info("Suspending input extension");
|
|
if (ir)
|
|
cancel_delayed_work_sync(&ir->work);
|
|
cancel_delayed_work_sync(&dev->buttons_query_work);
|
|
/* is canceling delayed work sufficient or does the rc event
|
|
kthread needs stopping? kthread is stopped in
|
|
ir_raw_event_unregister() */
|
|
return 0;
|
|
}
|
|
|
|
static int em28xx_ir_resume(struct em28xx *dev)
|
|
{
|
|
struct em28xx_IR *ir = dev->ir;
|
|
|
|
if (dev->is_audio_only)
|
|
return 0;
|
|
|
|
em28xx_info("Resuming input extension");
|
|
/* if suspend calls ir_raw_event_unregister(), the should call
|
|
ir_raw_event_register() */
|
|
if (ir)
|
|
schedule_delayed_work(&ir->work, msecs_to_jiffies(ir->polling));
|
|
if (dev->num_button_polling_addresses)
|
|
schedule_delayed_work(&dev->buttons_query_work,
|
|
msecs_to_jiffies(dev->button_polling_interval));
|
|
return 0;
|
|
}
|
|
|
|
static struct em28xx_ops rc_ops = {
|
|
.id = EM28XX_RC,
|
|
.name = "Em28xx Input Extension",
|
|
.init = em28xx_ir_init,
|
|
.fini = em28xx_ir_fini,
|
|
.suspend = em28xx_ir_suspend,
|
|
.resume = em28xx_ir_resume,
|
|
};
|
|
|
|
static int __init em28xx_rc_register(void)
|
|
{
|
|
return em28xx_register_extension(&rc_ops);
|
|
}
|
|
|
|
static void __exit em28xx_rc_unregister(void)
|
|
{
|
|
em28xx_unregister_extension(&rc_ops);
|
|
}
|
|
|
|
MODULE_LICENSE("GPL");
|
|
MODULE_AUTHOR("Mauro Carvalho Chehab");
|
|
MODULE_DESCRIPTION(DRIVER_DESC " - input interface");
|
|
MODULE_VERSION(EM28XX_VERSION);
|
|
|
|
module_init(em28xx_rc_register);
|
|
module_exit(em28xx_rc_unregister);
|