Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   1) // SPDX-License-Identifier: GPL-2.0-or-later
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   3)  * Loopback driver for rc-core,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   4)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   5)  * Copyright (c) 2010 David Härdeman <david@hardeman.nu>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   6)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   7)  * This driver receives TX data and passes it back as RX data,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   8)  * which is useful for (scripted) debugging of rc-core without
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   9)  * having to use actual hardware.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  10)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  11) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  12) #include <linux/device.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  13) #include <linux/module.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  14) #include <linux/sched.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  15) #include <linux/slab.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  16) #include <media/rc-core.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  17) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  18) #define DRIVER_NAME	"rc-loopback"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  19) #define dprintk(x...)	if (debug) printk(KERN_INFO DRIVER_NAME ": " x)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  20) #define RXMASK_REGULAR	0x1
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  21) #define RXMASK_LEARNING	0x2
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  22) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  23) static bool debug;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  24) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  25) struct loopback_dev {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  26) 	struct rc_dev *dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  27) 	u32 txmask;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  28) 	u32 txcarrier;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  29) 	u32 txduty;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  30) 	bool idle;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  31) 	bool learning;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  32) 	bool carrierreport;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  33) 	u32 rxcarriermin;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  34) 	u32 rxcarriermax;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  35) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  36) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  37) static struct loopback_dev loopdev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  38) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  39) static int loop_set_tx_mask(struct rc_dev *dev, u32 mask)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  40) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  41) 	struct loopback_dev *lodev = dev->priv;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  42) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  43) 	if ((mask & (RXMASK_REGULAR | RXMASK_LEARNING)) != mask) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  44) 		dprintk("invalid tx mask: %u\n", mask);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  45) 		return 2;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  46) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  47) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  48) 	dprintk("setting tx mask: %u\n", mask);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  49) 	lodev->txmask = mask;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  50) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  51) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  52) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  53) static int loop_set_tx_carrier(struct rc_dev *dev, u32 carrier)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  54) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  55) 	struct loopback_dev *lodev = dev->priv;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  56) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  57) 	dprintk("setting tx carrier: %u\n", carrier);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  58) 	lodev->txcarrier = carrier;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  59) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  60) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  61) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  62) static int loop_set_tx_duty_cycle(struct rc_dev *dev, u32 duty_cycle)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  63) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  64) 	struct loopback_dev *lodev = dev->priv;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  65) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  66) 	if (duty_cycle < 1 || duty_cycle > 99) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  67) 		dprintk("invalid duty cycle: %u\n", duty_cycle);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  68) 		return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  69) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  70) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  71) 	dprintk("setting duty cycle: %u\n", duty_cycle);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  72) 	lodev->txduty = duty_cycle;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  73) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  74) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  75) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  76) static int loop_set_rx_carrier_range(struct rc_dev *dev, u32 min, u32 max)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  77) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  78) 	struct loopback_dev *lodev = dev->priv;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  79) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  80) 	if (min < 1 || min > max) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  81) 		dprintk("invalid rx carrier range %u to %u\n", min, max);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  82) 		return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  83) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  84) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  85) 	dprintk("setting rx carrier range %u to %u\n", min, max);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  86) 	lodev->rxcarriermin = min;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  87) 	lodev->rxcarriermax = max;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  88) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  89) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  90) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  91) static int loop_tx_ir(struct rc_dev *dev, unsigned *txbuf, unsigned count)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  92) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  93) 	struct loopback_dev *lodev = dev->priv;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  94) 	u32 rxmask;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  95) 	unsigned i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  96) 	struct ir_raw_event rawir = {};
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  97) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  98) 	if (lodev->txcarrier < lodev->rxcarriermin ||
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  99) 	    lodev->txcarrier > lodev->rxcarriermax) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) 		dprintk("ignoring tx, carrier out of range\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) 		goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) 	if (lodev->learning)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) 		rxmask = RXMASK_LEARNING;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) 	else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) 		rxmask = RXMASK_REGULAR;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) 	if (!(rxmask & lodev->txmask)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) 		dprintk("ignoring tx, rx mask mismatch\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) 		goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) 	for (i = 0; i < count; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) 		rawir.pulse = i % 2 ? false : true;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) 		rawir.duration = txbuf[i];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) 		if (rawir.duration)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) 			ir_raw_event_store_with_filter(dev, &rawir);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) 	/* Fake a silence long enough to cause us to go idle */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) 	rawir.pulse = false;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) 	rawir.duration = dev->timeout;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) 	ir_raw_event_store_with_filter(dev, &rawir);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) 	ir_raw_event_handle(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) out:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) 	return count;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) static void loop_set_idle(struct rc_dev *dev, bool enable)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) 	struct loopback_dev *lodev = dev->priv;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) 	if (lodev->idle != enable) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) 		dprintk("%sing idle mode\n", enable ? "enter" : "exit");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) 		lodev->idle = enable;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) static int loop_set_learning_mode(struct rc_dev *dev, int enable)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) 	struct loopback_dev *lodev = dev->priv;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) 	if (lodev->learning != enable) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) 		dprintk("%sing learning mode\n", enable ? "enter" : "exit");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) 		lodev->learning = !!enable;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) static int loop_set_carrier_report(struct rc_dev *dev, int enable)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) 	struct loopback_dev *lodev = dev->priv;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) 	if (lodev->carrierreport != enable) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) 		dprintk("%sabling carrier reports\n", enable ? "en" : "dis");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) 		lodev->carrierreport = !!enable;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) static int loop_set_wakeup_filter(struct rc_dev *dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) 				  struct rc_scancode_filter *sc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) 	static const unsigned int max = 512;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) 	struct ir_raw_event *raw;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) 	int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) 	int i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) 	/* fine to disable filter */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) 	if (!sc->mask)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) 		return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) 	/* encode the specified filter and loop it back */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) 	raw = kmalloc_array(max, sizeof(*raw), GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) 	if (!raw)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) 		return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183) 	ret = ir_raw_encode_scancode(dev->wakeup_protocol, sc->data, raw, max);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) 	/* still loop back the partial raw IR even if it's incomplete */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185) 	if (ret == -ENOBUFS)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186) 		ret = max;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) 	if (ret >= 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188) 		/* do the loopback */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189) 		for (i = 0; i < ret; ++i)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) 			ir_raw_event_store(dev, &raw[i]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191) 		ir_raw_event_handle(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) 		ret = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) 	kfree(raw);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198) 	return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201) static int __init loop_init(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203) 	struct rc_dev *rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204) 	int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206) 	rc = rc_allocate_device(RC_DRIVER_IR_RAW);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207) 	if (!rc) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) 		printk(KERN_ERR DRIVER_NAME ": rc_dev allocation failed\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209) 		return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212) 	rc->device_name		= "rc-core loopback device";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213) 	rc->input_phys		= "rc-core/virtual";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214) 	rc->input_id.bustype	= BUS_VIRTUAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215) 	rc->input_id.version	= 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) 	rc->driver_name		= DRIVER_NAME;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217) 	rc->map_name		= RC_MAP_EMPTY;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218) 	rc->priv		= &loopdev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219) 	rc->allowed_protocols	= RC_PROTO_BIT_ALL_IR_DECODER;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) 	rc->allowed_wakeup_protocols = RC_PROTO_BIT_ALL_IR_ENCODER;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221) 	rc->encode_wakeup	= true;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222) 	rc->timeout		= MS_TO_US(100); /* 100 ms */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223) 	rc->min_timeout		= 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224) 	rc->max_timeout		= UINT_MAX;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225) 	rc->rx_resolution	= 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226) 	rc->tx_resolution	= 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227) 	rc->s_tx_mask		= loop_set_tx_mask;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228) 	rc->s_tx_carrier	= loop_set_tx_carrier;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229) 	rc->s_tx_duty_cycle	= loop_set_tx_duty_cycle;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230) 	rc->s_rx_carrier_range	= loop_set_rx_carrier_range;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231) 	rc->tx_ir		= loop_tx_ir;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232) 	rc->s_idle		= loop_set_idle;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233) 	rc->s_learning_mode	= loop_set_learning_mode;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234) 	rc->s_carrier_report	= loop_set_carrier_report;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235) 	rc->s_wakeup_filter	= loop_set_wakeup_filter;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237) 	loopdev.txmask		= RXMASK_REGULAR;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238) 	loopdev.txcarrier	= 36000;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239) 	loopdev.txduty		= 50;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240) 	loopdev.rxcarriermin	= 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241) 	loopdev.rxcarriermax	= ~0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242) 	loopdev.idle		= true;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243) 	loopdev.learning	= false;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 244) 	loopdev.carrierreport	= false;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 245) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 246) 	ret = rc_register_device(rc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 247) 	if (ret < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 248) 		printk(KERN_ERR DRIVER_NAME ": rc_dev registration failed\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 249) 		rc_free_device(rc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 250) 		return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 251) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 252) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 253) 	loopdev.dev = rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 254) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 255) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 256) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 257) static void __exit loop_exit(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 258) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 259) 	rc_unregister_device(loopdev.dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 260) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 261) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 262) module_init(loop_init);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 263) module_exit(loop_exit);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 264) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 265) module_param(debug, bool, S_IRUGO | S_IWUSR);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 266) MODULE_PARM_DESC(debug, "Enable debug messages");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 267) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 268) MODULE_DESCRIPTION("Loopback device for rc-core debugging");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 269) MODULE_AUTHOR("David Härdeman <david@hardeman.nu>");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 270) MODULE_LICENSE("GPL");