You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
83 lines
2.8 KiB
83 lines
2.8 KiB
From 09eb4e8210da3acb95f874f3ed2292f13e1f6ad3 Mon Sep 17 00:00:00 2001
|
|
From: pjennings <pjennings-git@pjennings.net>
|
|
Date: Wed, 20 Feb 2013 17:51:43 -0600
|
|
Subject: [PATCH 051/196] Added inverted transmitter support
|
|
|
|
---
|
|
drivers/staging/media/lirc/lirc_rpi.c | 17 +++++++++++------
|
|
1 file changed, 11 insertions(+), 6 deletions(-)
|
|
|
|
diff --git a/drivers/staging/media/lirc/lirc_rpi.c b/drivers/staging/media/lirc/lirc_rpi.c
|
|
index 96acab0..5bb0dfe 100644
|
|
--- a/drivers/staging/media/lirc/lirc_rpi.c
|
|
+++ b/drivers/staging/media/lirc/lirc_rpi.c
|
|
@@ -68,6 +68,8 @@ static int debug;
|
|
static int sense = -1;
|
|
/* use softcarrier by default */
|
|
static int softcarrier = 1;
|
|
+/* 0 = do not invert output, 1 = invert output */
|
|
+static int invert = 0;
|
|
|
|
struct gpio_chip *gpiochip;
|
|
struct irq_chip *irqchip;
|
|
@@ -135,10 +137,10 @@ static long send_pulse_softcarrier(unsigned long length)
|
|
actual = 0; target = 0; flag = 0;
|
|
while (actual < length) {
|
|
if (flag) {
|
|
- gpiochip->set(gpiochip, gpio_out_pin, 0);
|
|
+ gpiochip->set(gpiochip, gpio_out_pin, invert);
|
|
target += space_width;
|
|
} else {
|
|
- gpiochip->set(gpiochip, gpio_out_pin, 1);
|
|
+ gpiochip->set(gpiochip, gpio_out_pin, !invert);
|
|
target += pulse_width;
|
|
}
|
|
d = (target - actual -
|
|
@@ -162,7 +164,7 @@ static long send_pulse(unsigned long length)
|
|
if (softcarrier) {
|
|
return send_pulse_softcarrier(length);
|
|
} else {
|
|
- gpiochip->set(gpiochip, gpio_out_pin, 1);
|
|
+ gpiochip->set(gpiochip, gpio_out_pin, !invert);
|
|
safe_udelay(length);
|
|
return 0;
|
|
}
|
|
@@ -170,7 +172,7 @@ static long send_pulse(unsigned long length)
|
|
|
|
static void send_space(long length)
|
|
{
|
|
- gpiochip->set(gpiochip, gpio_out_pin, 0);
|
|
+ gpiochip->set(gpiochip, gpio_out_pin, invert);
|
|
if (length <= 0)
|
|
return;
|
|
safe_udelay(length);
|
|
@@ -318,7 +320,7 @@ static int init_port(void)
|
|
|
|
gpiochip->direction_input(gpiochip, gpio_in_pin);
|
|
gpiochip->direction_output(gpiochip, gpio_out_pin, 1);
|
|
- gpiochip->set(gpiochip, gpio_out_pin, 0);
|
|
+ gpiochip->set(gpiochip, gpio_out_pin, invert);
|
|
|
|
irq = gpiochip->to_irq(gpiochip, gpio_in_pin);
|
|
dprintk("to_irq %d\n", irq);
|
|
@@ -457,7 +459,7 @@ static ssize_t lirc_write(struct file *file, const char *buf,
|
|
else
|
|
delta = send_pulse(wbuf[i]);
|
|
}
|
|
- gpiochip->set(gpiochip, gpio_out_pin, 0);
|
|
+ gpiochip->set(gpiochip, gpio_out_pin, invert);
|
|
|
|
spin_unlock_irqrestore(&lock, flags);
|
|
kfree(wbuf);
|
|
@@ -683,5 +685,8 @@ MODULE_PARM_DESC(sense, "Override autodetection of IR receiver circuit"
|
|
module_param(softcarrier, bool, S_IRUGO);
|
|
MODULE_PARM_DESC(softcarrier, "Software carrier (0 = off, 1 = on, default on)");
|
|
|
|
+module_param(invert, bool, S_IRUGO);
|
|
+MODULE_PARM_DESC(invert, "Invert output (0 = off, 1 = on, default off");
|
|
+
|
|
module_param(debug, bool, S_IRUGO | S_IWUSR);
|
|
MODULE_PARM_DESC(debug, "Enable debugging messages");
|
|
--
|
|
1.9.1
|
|
|
|
|