diff options
Diffstat (limited to 'drivers/media/rc/ir-sanyo-decoder.c')
| -rw-r--r-- | drivers/media/rc/ir-sanyo-decoder.c | 77 |
1 files changed, 33 insertions, 44 deletions
diff --git a/drivers/media/rc/ir-sanyo-decoder.c b/drivers/media/rc/ir-sanyo-decoder.c index 520bb77dcb62..2bc98c342882 100644 --- a/drivers/media/rc/ir-sanyo-decoder.c +++ b/drivers/media/rc/ir-sanyo-decoder.c @@ -1,32 +1,23 @@ -/* ir-sanyo-decoder.c - handle SANYO IR Pulse/Space protocol - * - * Copyright (C) 2011 by Mauro Carvalho Chehab - * - * 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. - * - * 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. - * - * This protocol uses the NEC protocol timings. However, data is formatted as: - * 13 bits Custom Code - * 13 bits NOT(Custom Code) - * 8 bits Key data - * 8 bits NOT(Key data) - * - * According with LIRC, this protocol is used on Sanyo, Aiwa and Chinon - * Information for this protocol is available at the Sanyo LC7461 datasheet. - */ +// SPDX-License-Identifier: GPL-2.0 +// ir-sanyo-decoder.c - handle SANYO IR Pulse/Space protocol +// +// Copyright (C) 2011 by Mauro Carvalho Chehab +// +// This protocol uses the NEC protocol timings. However, data is formatted as: +// 13 bits Custom Code +// 13 bits NOT(Custom Code) +// 8 bits Key data +// 8 bits NOT(Key data) +// +// According with LIRC, this protocol is used on Sanyo, Aiwa and Chinon +// Information for this protocol is available at the Sanyo LC7461 datasheet. #include <linux/module.h> #include <linux/bitrev.h> #include "rc-core-priv.h" #define SANYO_NBITS (13+13+8+8) -#define SANYO_UNIT 562500 /* ns */ +#define SANYO_UNIT 563 /* us */ #define SANYO_HEADER_PULSE (16 * SANYO_UNIT) #define SANYO_HEADER_SPACE (8 * SANYO_UNIT) #define SANYO_BIT_PULSE (1 * SANYO_UNIT) @@ -48,7 +39,7 @@ enum sanyo_state { /** * ir_sanyo_decode() - Decode one SANYO pulse or space * @dev: the struct rc_dev descriptor of the device - * @duration: the struct ir_raw_event descriptor of the pulse/space + * @ev: the struct ir_raw_event descriptor of the pulse/space * * This function returns -EINVAL if the pulse violates the state machine */ @@ -60,15 +51,15 @@ static int ir_sanyo_decode(struct rc_dev *dev, struct ir_raw_event ev) u8 command, not_command; if (!is_timing_event(ev)) { - if (ev.reset) { - IR_dprintk(1, "SANYO event reset received. reset to state 0\n"); + if (ev.overflow) { + dev_dbg(&dev->dev, "SANYO event overflow received. reset to state 0\n"); data->state = STATE_INACTIVE; } return 0; } - IR_dprintk(2, "SANYO decode started at state %d (%uus %s)\n", - data->state, TO_US(ev.duration), TO_STR(ev.pulse)); + dev_dbg(&dev->dev, "SANYO decode started at state %d (%uus %s)\n", + data->state, ev.duration, TO_STR(ev.pulse)); switch (data->state) { @@ -110,13 +101,9 @@ static int ir_sanyo_decode(struct rc_dev *dev, struct ir_raw_event ev) break; if (!data->count && geq_margin(ev.duration, SANYO_REPEAT_SPACE, SANYO_UNIT / 2)) { - if (!dev->keypressed) { - IR_dprintk(1, "SANYO discarding last key repeat: event after key up\n"); - } else { - rc_repeat(dev); - IR_dprintk(1, "SANYO repeat last key\n"); - data->state = STATE_INACTIVE; - } + rc_repeat(dev); + dev_dbg(&dev->dev, "SANYO repeat last key\n"); + data->state = STATE_INACTIVE; return 0; } @@ -157,21 +144,21 @@ static int ir_sanyo_decode(struct rc_dev *dev, struct ir_raw_event ev) not_command = bitrev8((data->bits >> 0) & 0xff); if ((command ^ not_command) != 0xff) { - IR_dprintk(1, "SANYO checksum error: received 0x%08Lx\n", - data->bits); + dev_dbg(&dev->dev, "SANYO checksum error: received 0x%08llx\n", + data->bits); data->state = STATE_INACTIVE; return 0; } scancode = address << 8 | command; - IR_dprintk(1, "SANYO scancode: 0x%06x\n", scancode); - rc_keydown(dev, RC_TYPE_SANYO, scancode, 0); + dev_dbg(&dev->dev, "SANYO scancode: 0x%06x\n", scancode); + rc_keydown(dev, RC_PROTO_SANYO, scancode, 0); data->state = STATE_INACTIVE; return 0; } - IR_dprintk(1, "SANYO decode failed at count %d state %d (%uus %s)\n", - data->count, data->state, TO_US(ev.duration), TO_STR(ev.pulse)); + dev_dbg(&dev->dev, "SANYO decode failed at count %d state %d (%uus %s)\n", + data->count, data->state, ev.duration, TO_STR(ev.pulse)); data->state = STATE_INACTIVE; return -EINVAL; } @@ -199,7 +186,7 @@ static const struct ir_raw_timings_pd ir_sanyo_timings = { * -ENOBUFS if there isn't enough space in the array to fit the * encoding. In this case all @max events will have been written. */ -static int ir_sanyo_encode(enum rc_type protocol, u32 scancode, +static int ir_sanyo_encode(enum rc_proto protocol, u32 scancode, struct ir_raw_event *events, unsigned int max) { struct ir_raw_event *e = events; @@ -219,9 +206,11 @@ static int ir_sanyo_encode(enum rc_type protocol, u32 scancode, } static struct ir_raw_handler sanyo_handler = { - .protocols = RC_BIT_SANYO, + .protocols = RC_PROTO_BIT_SANYO, .decode = ir_sanyo_decode, .encode = ir_sanyo_encode, + .carrier = 38000, + .min_timeout = SANYO_TRAILER_SPACE, }; static int __init ir_sanyo_decode_init(void) @@ -240,7 +229,7 @@ static void __exit ir_sanyo_decode_exit(void) module_init(ir_sanyo_decode_init); module_exit(ir_sanyo_decode_exit); -MODULE_LICENSE("GPL"); +MODULE_LICENSE("GPL v2"); MODULE_AUTHOR("Mauro Carvalho Chehab"); MODULE_AUTHOR("Red Hat Inc. (http://www.redhat.com)"); MODULE_DESCRIPTION("SANYO IR protocol decoder"); |
