Release 4.7 drivers/media/rc/ene_ir.c

/*
 * driver for ENE KB3926 B/C/D/E/F CIR (pnp id: ENE0XXX)
 *
 * Copyright (C) 2010 Maxim Levitsky <maximlevitsky@gmail.com>
 *
 * 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; either version 2 of the
 * License, or (at your option) any later version.
 *
 * 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.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
 * USA
 *
 * Special thanks to:
 *   Sami R. <maesesami@gmail.com> for lot of help in debugging and therefore
 *    bringing to life support for transmission & learning mode.
 *
 *   Charlie Andrews <charliethepilot@googlemail.com> for lots of help in
 *   bringing up the support of new firmware buffer that is popular
 *   on latest notebooks
 *
 *   ENE for partial device documentation
 *
 */


#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt

#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/pnp.h>
#include <linux/io.h>
#include <linux/interrupt.h>
#include <linux/sched.h>
#include <linux/slab.h>
#include <media/rc-core.h>
#include "ene_ir.h"


static int sample_period;

static bool learning_mode_force;

static int debug;

static bool txsim;



static void ene_set_reg_addr(struct ene_device *dev, u16 reg)
{
	outb(reg >> 8, dev->hw_io + ENE_ADDR_HI);
	outb(reg & 0xFF, dev->hw_io + ENE_ADDR_LO);
}

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/* read a hardware register */


static u8 ene_read_reg(struct ene_device *dev, u16 reg)
{
	u8 retval;
	ene_set_reg_addr(dev, reg);
	retval = inb(dev->hw_io + ENE_IO);
	dbg_regs("reg %04x == %02x", reg, retval);
	return retval;
}

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/* write a hardware register */


static void ene_write_reg(struct ene_device *dev, u16 reg, u8 value)
{
	dbg_regs("reg %04x <- %02x", reg, value);
	ene_set_reg_addr(dev, reg);
	outb(value, dev->hw_io + ENE_IO);
}

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/* Set bits in hardware register */


static void ene_set_reg_mask(struct ene_device *dev, u16 reg, u8 mask)
{
	dbg_regs("reg %04x |= %02x", reg, mask);
	ene_set_reg_addr(dev, reg);
	outb(inb(dev->hw_io + ENE_IO) | mask, dev->hw_io + ENE_IO);
}

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/* Clear bits in hardware register */


static void ene_clear_reg_mask(struct ene_device *dev, u16 reg, u8 mask)
{
	dbg_regs("reg %04x &= ~%02x ", reg, mask);
	ene_set_reg_addr(dev, reg);
	outb(inb(dev->hw_io + ENE_IO) & ~mask, dev->hw_io + ENE_IO);
}

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/* A helper to set/clear a bit in register according to boolean variable */


static void ene_set_clear_reg_mask(struct ene_device *dev, u16 reg, u8 mask,
								bool set)
{
	if (set)
		ene_set_reg_mask(dev, reg, mask);
	else
		ene_clear_reg_mask(dev, reg, mask);
}

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/* detect hardware features */


static int ene_hw_detect(struct ene_device *dev)
{
	u8 chip_major, chip_minor;
	u8 hw_revision, old_ver;
	u8 fw_reg2, fw_reg1;

	ene_clear_reg_mask(dev, ENE_ECSTS, ENE_ECSTS_RSRVD);
	chip_major = ene_read_reg(dev, ENE_ECVER_MAJOR);
	chip_minor = ene_read_reg(dev, ENE_ECVER_MINOR);
	ene_set_reg_mask(dev, ENE_ECSTS, ENE_ECSTS_RSRVD);

	hw_revision = ene_read_reg(dev, ENE_ECHV);
	old_ver = ene_read_reg(dev, ENE_HW_VER_OLD);

	dev->pll_freq = (ene_read_reg(dev, ENE_PLLFRH) << 4) +
		(ene_read_reg(dev, ENE_PLLFRL) >> 4);

	if (sample_period != ENE_DEFAULT_SAMPLE_PERIOD)
		dev->rx_period_adjust =
			dev->pll_freq == ENE_DEFAULT_PLL_FREQ ? 2 : 4;

	if (hw_revision == 0xFF) {
		pr_warn("device seems to be disabled\n");
		pr_warn("send a mail to lirc-list@lists.sourceforge.net\n");
		pr_warn("please attach output of acpidump and dmidecode\n");
		return -ENODEV;
	}

	pr_notice("chip is 0x%02x%02x - kbver = 0x%02x, rev = 0x%02x\n",
		  chip_major, chip_minor, old_ver, hw_revision);

	pr_notice("PLL freq = %d\n", dev->pll_freq);

	if (chip_major == 0x33) {
		pr_warn("chips 0x33xx aren't supported\n");
		return -ENODEV;
	}

	if (chip_major == 0x39 && chip_minor == 0x26 && hw_revision == 0xC0) {
		dev->hw_revision = ENE_HW_C;
		pr_notice("KB3926C detected\n");
	} else if (old_ver == 0x24 && hw_revision == 0xC0) {
		dev->hw_revision = ENE_HW_B;
		pr_notice("KB3926B detected\n");
	} else {
		dev->hw_revision = ENE_HW_D;
		pr_notice("KB3926D or higher detected\n");
	}

	/* detect features hardware supports */
	if (dev->hw_revision < ENE_HW_C)
		return 0;

	fw_reg1 = ene_read_reg(dev, ENE_FW1);
	fw_reg2 = ene_read_reg(dev, ENE_FW2);

	pr_notice("Firmware regs: %02x %02x\n", fw_reg1, fw_reg2);

	dev->hw_use_gpio_0a = !!(fw_reg2 & ENE_FW2_GP0A);
	dev->hw_learning_and_tx_capable = !!(fw_reg2 & ENE_FW2_LEARNING);
	dev->hw_extra_buffer = !!(fw_reg1 & ENE_FW1_HAS_EXTRA_BUF);

	if (dev->hw_learning_and_tx_capable)
		dev->hw_fan_input = !!(fw_reg2 & ENE_FW2_FAN_INPUT);

	pr_notice("Hardware features:\n");

	if (dev->hw_learning_and_tx_capable) {
		pr_notice("* Supports transmitting & learning mode\n");
		pr_notice("   This feature is rare and therefore,\n");
		pr_notice("   you are welcome to test it,\n");
		pr_notice("   and/or contact the author via:\n");
		pr_notice("   lirc-list@lists.sourceforge.net\n");
		pr_notice("   or maximlevitsky@gmail.com\n");

		pr_notice("* Uses GPIO %s for IR raw input\n",
			  dev->hw_use_gpio_0a ? "40" : "0A");

		if (dev->hw_fan_input)
			pr_notice("* Uses unused fan feedback input as source of demodulated IR data\n");
	}

	if (!dev->hw_fan_input)
		pr_notice("* Uses GPIO %s for IR demodulated input\n",
			  dev->hw_use_gpio_0a ? "0A" : "40");

	if (dev->hw_extra_buffer)
		pr_notice("* Uses new style input buffer\n");
	return 0;
}

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/* Read properities of hw sample buffer */


static void ene_rx_setup_hw_buffer(struct ene_device *dev)
{
	u16 tmp;

	ene_rx_read_hw_pointer(dev);
	dev->r_pointer = dev->w_pointer;

	if (!dev->hw_extra_buffer) {
		dev->buffer_len = ENE_FW_PACKET_SIZE * 2;
		return;
	}

	tmp = ene_read_reg(dev, ENE_FW_SAMPLE_BUFFER);
	tmp |= ene_read_reg(dev, ENE_FW_SAMPLE_BUFFER+1) << 8;
	dev->extra_buf1_address = tmp;

	dev->extra_buf1_len = ene_read_reg(dev, ENE_FW_SAMPLE_BUFFER + 2);

	tmp = ene_read_reg(dev, ENE_FW_SAMPLE_BUFFER + 3);
	tmp |= ene_read_reg(dev, ENE_FW_SAMPLE_BUFFER + 4) << 8;
	dev->extra_buf2_address = tmp;

	dev->extra_buf2_len = ene_read_reg(dev, ENE_FW_SAMPLE_BUFFER + 5);

	dev->buffer_len = dev->extra_buf1_len + dev->extra_buf2_len + 8;

	pr_notice("Hardware uses 2 extended buffers:\n");
	pr_notice("  0x%04x - len : %d\n",
		  dev->extra_buf1_address, dev->extra_buf1_len);
	pr_notice("  0x%04x - len : %d\n",
		  dev->extra_buf2_address, dev->extra_buf2_len);

	pr_notice("Total buffer len = %d\n", dev->buffer_len);

	if (dev->buffer_len > 64 || dev->buffer_len < 16)
		goto error;

	if (dev->extra_buf1_address > 0xFBFC ||
					dev->extra_buf1_address < 0xEC00)
		goto error;

	if (dev->extra_buf2_address > 0xFBFC ||
					dev->extra_buf2_address < 0xEC00)
		goto error;

	if (dev->r_pointer > dev->buffer_len)
		goto error;

	ene_set_reg_mask(dev, ENE_FW1, ENE_FW1_EXTRA_BUF_HND);
	return;
error:
	pr_warn("Error validating extra buffers, device probably won't work\n");
	dev->hw_extra_buffer = false;
	ene_clear_reg_mask(dev, ENE_FW1, ENE_FW1_EXTRA_BUF_HND);
}


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/* Restore the pointers to extra buffers - to make module reload work*/


static void ene_rx_restore_hw_buffer(struct ene_device *dev)
{
	if (!dev->hw_extra_buffer)
		return;

	ene_write_reg(dev, ENE_FW_SAMPLE_BUFFER + 0,
				dev->extra_buf1_address & 0xFF);
	ene_write_reg(dev, ENE_FW_SAMPLE_BUFFER + 1,
				dev->extra_buf1_address >> 8);
	ene_write_reg(dev, ENE_FW_SAMPLE_BUFFER + 2, dev->extra_buf1_len);

	ene_write_reg(dev, ENE_FW_SAMPLE_BUFFER + 3,
				dev->extra_buf2_address & 0xFF);
	ene_write_reg(dev, ENE_FW_SAMPLE_BUFFER + 4,
				dev->extra_buf2_address >> 8);
	ene_write_reg(dev, ENE_FW_SAMPLE_BUFFER + 5,
				dev->extra_buf2_len);
	ene_clear_reg_mask(dev, ENE_FW1, ENE_FW1_EXTRA_BUF_HND);
}

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/* Read hardware write pointer */


static void ene_rx_read_hw_pointer(struct ene_device *dev)
{
	if (dev->hw_extra_buffer)
		dev->w_pointer = ene_read_reg(dev, ENE_FW_RX_POINTER);
	else
		dev->w_pointer = ene_read_reg(dev, ENE_FW2)
			& ENE_FW2_BUF_WPTR ? 0 : ENE_FW_PACKET_SIZE;

	dbg_verbose("RB: HW write pointer: %02x, driver read pointer: %02x",
		dev->w_pointer, dev->r_pointer);
}

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/* Gets address of next sample from HW ring buffer */


static int ene_rx_get_sample_reg(struct ene_device *dev)
{
	int r_pointer;

	if (dev->r_pointer == dev->w_pointer) {
		dbg_verbose("RB: hit end, try update w_pointer");
		ene_rx_read_hw_pointer(dev);
	}

	if (dev->r_pointer == dev->w_pointer) {
		dbg_verbose("RB: end of data at %d", dev->r_pointer);
		return 0;
	}

	dbg_verbose("RB: reading at offset %d", dev->r_pointer);
	r_pointer = dev->r_pointer;

	dev->r_pointer++;
	if (dev->r_pointer == dev->buffer_len)
		dev->r_pointer = 0;

	dbg_verbose("RB: next read will be from offset %d", dev->r_pointer);

	if (r_pointer < 8) {
		dbg_verbose("RB: read at main buffer at %d", r_pointer);
		return ENE_FW_SAMPLE_BUFFER + r_pointer;
	}

	r_pointer -= 8;

	if (r_pointer < dev->extra_buf1_len) {
		dbg_verbose("RB: read at 1st extra buffer at %d", r_pointer);
		return dev->extra_buf1_address + r_pointer;
	}

	r_pointer -= dev->extra_buf1_len;

	if (r_pointer < dev->extra_buf2_len) {
		dbg_verbose("RB: read at 2nd extra buffer at %d", r_pointer);
		return dev->extra_buf2_address + r_pointer;
	}

	dbg("attempt to read beyond ring buffer end");
	return 0;
}

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/* Sense current received carrier */


static void ene_rx_sense_carrier(struct ene_device *dev)
{
	DEFINE_IR_RAW_EVENT(ev);

	int carrier, duty_cycle;
	int period = ene_read_reg(dev, ENE_CIRCAR_PRD);
	int hperiod = ene_read_reg(dev, ENE_CIRCAR_HPRD);

	if (!(period & ENE_CIRCAR_PRD_VALID))
		return;

	period &= ~ENE_CIRCAR_PRD_VALID;

	if (!period)
		return;

	dbg("RX: hardware carrier period = %02x", period);
	dbg("RX: hardware carrier pulse period = %02x", hperiod);

	carrier = 2000000 / period;
	duty_cycle = (hperiod * 100) / period;
	dbg("RX: sensed carrier = %d Hz, duty cycle %d%%",
						carrier, duty_cycle);
	if (dev->carrier_detect_enabled) {
		ev.carrier_report = true;
		ev.carrier = carrier;
		ev.duty_cycle = duty_cycle;
		ir_raw_event_store(dev->rdev, &ev);
	}
}

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/* this enables/disables the CIR RX engine */


static void ene_rx_enable_cir_engine(struct ene_device *dev, bool enable)
{
	ene_set_clear_reg_mask(dev, ENE_CIRCFG,
			ENE_CIRCFG_RX_EN | ENE_CIRCFG_RX_IRQ, enable);
}

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/* this selects input for CIR engine. Ether GPIO 0A or GPIO40*/


static void ene_rx_select_input(struct ene_device *dev, bool gpio_0a)
{
	ene_set_clear_reg_mask(dev, ENE_CIRCFG2, ENE_CIRCFG2_GPIO0A, gpio_0a);
}

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/*
 * this enables alternative input via fan tachometer sensor and bypasses
 * the hw CIR engine
 */


static void ene_rx_enable_fan_input(struct ene_device *dev, bool enable)
{
	if (!dev->hw_fan_input)
		return;

	if (!enable)
		ene_write_reg(dev, ENE_FAN_AS_IN1, 0);
	else {
		ene_write_reg(dev, ENE_FAN_AS_IN1, ENE_FAN_AS_IN1_EN);
		ene_write_reg(dev, ENE_FAN_AS_IN2, ENE_FAN_AS_IN2_EN);
	}
}

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/* setup the receiver for RX*/


static void ene_rx_setup(struct ene_device *dev)
{
	bool learning_mode = dev->learning_mode_enabled ||
					dev->carrier_detect_enabled;
	int sample_period_adjust = 0;

	dbg("RX: setup receiver, learning mode = %d", learning_mode);


	/* This selects RLC input and clears CFG2 settings */
	ene_write_reg(dev, ENE_CIRCFG2, 0x00);

	/* set sample period*/
	if (sample_period == ENE_DEFAULT_SAMPLE_PERIOD)
		sample_period_adjust =
			dev->pll_freq == ENE_DEFAULT_PLL_FREQ ? 1 : 2;

	ene_write_reg(dev, ENE_CIRRLC_CFG,
			(sample_period + sample_period_adjust) |
						ENE_CIRRLC_CFG_OVERFLOW);
	/* revB doesn't support inputs */
	if (dev->hw_revision < ENE_HW_C)
		goto select_timeout;

	if (learning_mode) {

		WARN_ON(!dev->hw_learning_and_tx_capable);

		/* Enable the opposite of the normal input
                That means that if GPIO40 is normally used, use GPIO0A
                and vice versa.
                This input will carry non demodulated
                signal, and we will tell the hw to demodulate it itself */
		ene_rx_select_input(dev, !dev->hw_use_gpio_0a);
		dev->rx_fan_input_inuse = false;

		/* Enable carrier demodulation */
		ene_set_reg_mask(dev, ENE_CIRCFG, ENE_CIRCFG_CARR_DEMOD);

		/* Enable carrier detection */
		ene_write_reg(dev, ENE_CIRCAR_PULS, 0x63);
		ene_set_clear_reg_mask(dev, ENE_CIRCFG2, ENE_CIRCFG2_CARR_DETECT,
			dev->carrier_detect_enabled || debug);
	} else {
		if (dev->hw_fan_input)
			dev->rx_fan_input_inuse = true;
		else
			ene_rx_select_input(dev, dev->hw_use_gpio_0a);

		/* Disable carrier detection & demodulation */
		ene_clear_reg_mask(dev, ENE_CIRCFG, ENE_CIRCFG_CARR_DEMOD);
		ene_clear_reg_mask(dev, ENE_CIRCFG2, ENE_CIRCFG2_CARR_DETECT);
	}

select_timeout:
	if (dev->rx_fan_input_inuse) {
		dev->rdev->rx_resolution = US_TO_NS(ENE_FW_SAMPLE_PERIOD_FAN);

		/* Fan input doesn't support timeouts, it just ends the
                        input with a maximum sample */
		dev->rdev->min_timeout = dev->rdev->max_timeout =
			US_TO_NS(ENE_FW_SMPL_BUF_FAN_MSK *
				ENE_FW_SAMPLE_PERIOD_FAN);
	} else {
		dev->rdev->rx_resolution = US_TO_NS(sample_period);

		/* Theoreticly timeout is unlimited, but we cap it
                 * because it was seen that on one device, it
                 * would stop sending spaces after around 250 msec.
                 * Besides, this is close to 2^32 anyway and timeout is u32.
                 */
		dev->rdev->min_timeout = US_TO_NS(127 * sample_period);
		dev->rdev->max_timeout = US_TO_NS(200000);
	}

	if (dev->hw_learning_and_tx_capable)
		dev->rdev->tx_resolution = US_TO_NS(sample_period);

	if (dev->rdev->timeout > dev->rdev->max_timeout)
		dev->rdev->timeout = dev->rdev->max_timeout;
	if (dev->rdev->timeout < dev->rdev->min_timeout)
		dev->rdev->timeout = dev->rdev->min_timeout;
}

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/* Enable the device for receive */


static void ene_rx_enable_hw(struct ene_device *dev)
{
	u8 reg_value;

	/* Enable system interrupt */
	if (dev->hw_revision < ENE_HW_C) {
		ene_write_reg(dev, ENEB_IRQ, dev->irq << 1);
		ene_write_reg(dev, ENEB_IRQ_UNK1, 0x01);
	} else {
		reg_value = ene_read_reg(dev, ENE_IRQ) & 0xF0;
		reg_value |= ENE_IRQ_UNK_EN;
		reg_value &= ~ENE_IRQ_STATUS;
		reg_value |= (dev->irq & ENE_IRQ_MASK);
		ene_write_reg(dev, ENE_IRQ, reg_value);
	}

	/* Enable inputs */
	ene_rx_enable_fan_input(dev, dev->rx_fan_input_inuse);
	ene_rx_enable_cir_engine(dev, !dev->rx_fan_input_inuse);

	/* ack any pending irqs - just in case */
	ene_irq_status(dev);

	/* enable firmware bits */
	ene_set_reg_mask(dev, ENE_FW1, ENE_FW1_ENABLE | ENE_FW1_IRQ);

	/* enter idle mode */
	ir_raw_event_set_idle(dev->rdev, true);
}

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/* Enable the device for receive - wrapper to track the state*/


static void ene_rx_enable(struct ene_device *dev)
{
	ene_rx_enable_hw(dev);
	dev->rx_enabled = true;
}

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/* Disable the device receiver */


static void ene_rx_disable_hw(struct ene_device *dev)
{
	/* disable inputs */
	ene_rx_enable_cir_engine(dev, false);
	ene_rx_enable_fan_input(dev, false);

	/* disable hardware IRQ and firmware flag */
	ene_clear_reg_mask(dev, ENE_FW1, ENE_FW1_ENABLE | ENE_FW1_IRQ);
	ir_raw_event_set_idle(dev->rdev, true);
}

Contributors
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maxim levitsky
maxim levitsky
46
97.87%
4
80.00%
david hardeman
david hardeman
1
2.13%
1
20.00%
Total
47
100.00%
5
100.00%

/* Disable the device receiver - wrapper to track the state */


static void ene_rx_disable(struct ene_device *dev)
{
	ene_rx_disable_hw(dev);
	dev->rx_enabled = false;
}

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maxim levitsky
maxim levitsky
22
100.00%
2
100.00%
Total
22
100.00%
2
100.00%

/* This resets the receiver. Useful to stop stream of spaces at end of
 * transmission
 */


static void ene_rx_reset(struct ene_device *dev)
{
	ene_clear_reg_mask(dev, ENE_CIRCFG, ENE_CIRCFG_RX_EN);
	ene_set_reg_mask(dev, ENE_CIRCFG, ENE_CIRCFG_RX_EN);
}

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maxim levitsky
maxim levitsky
29
100.00%
1
100.00%
Total
29
100.00%
1
100.00%

/* Set up the TX carrier frequency and duty cycle */


static void ene_tx_set_carrier(struct ene_device *dev)
{
	u8 tx_puls_width;
	unsigned long flags;

	spin_lock_irqsave(&dev->hw_lock, flags);

	ene_set_clear_reg_mask(dev, ENE_CIRCFG,
		ENE_CIRCFG_TX_CARR, dev->tx_period > 0);

	if (!dev->tx_period)
		goto unlock;

	BUG_ON(dev->tx_duty_cycle >= 100 || dev->tx_duty_cycle <= 0);

	tx_puls_width = dev->tx_period / (100 / dev->tx_duty_cycle);

	if (!tx_puls_width)
		tx_puls_width = 1;

	dbg("TX: pulse distance = %d * 500 ns", dev->tx_period);
	dbg("TX: pulse width = %d * 500 ns", tx_puls_width);

	ene_write_reg(dev, ENE_CIRMOD_PRD, dev->tx_period | ENE_CIRMOD_PRD_POL);
	ene_write_reg(dev, ENE_CIRMOD_HPRD, tx_puls_width);
unlock:
	spin_unlock_irqrestore(&dev->hw_lock, flags);
}

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maxim levitsky
maxim levitsky
141
100.00%
1
100.00%
Total
141
100.00%
1
100.00%

/* Enable/disable transmitters */


static void ene_tx_set_transmitters(struct ene_device *dev)
{
	unsigned long flags;

	spin_lock_irqsave(&dev->hw_lock, flags);
	ene_set_clear_reg_mask(dev, ENE_GPIOFS8, ENE_GPIOFS8_GPIO41,
					!!(dev->transmitter_mask & 0x01));
	ene_set_clear_reg_mask(dev, ENE_GPIOFS1, ENE_GPIOFS1_GPIO0D,
					!!(dev->transmitter_mask & 0x02));
	spin_unlock_irqrestore(&dev->hw_lock, flags);
}

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maxim levitsky
maxim levitsky
73
100.00%
1
100.00%
Total
73
100.00%
1
100.00%

/* prepare transmission */


static void ene_tx_enable(struct ene_device *dev)
{
	u8 conf1 = ene_read_reg(dev, ENE_CIRCFG);
	u8 fwreg2 = ene_read_reg(dev, ENE_FW2);

	dev->saved_conf1 = conf1;

	/* Show information about currently connected transmitter jacks */
	if (fwreg2 & ENE_FW2_EMMITER1_CONN)
		dbg("TX: Transmitter #1 is connected");

	if (fwreg2 & ENE_FW2_EMMITER2_CONN)
		dbg("TX: Transmitter #2 is connected");

	if (!(fwreg2 & (ENE_FW2_EMMITER1_CONN | ENE_FW2_EMMITER2_CONN)))
		pr_warn("TX: transmitter cable isn't connected!\n");

	/* disable receive on revc */
	if (dev->hw_revision == ENE_HW_C)
		conf1 &= ~ENE_CIRCFG_RX_EN;

	/* Enable TX engine */
	conf1 |= ENE_CIRCFG_TX_EN | ENE_CIRCFG_TX_IRQ;
	ene_write_reg(dev, ENE_CIRCFG, conf1);
}

Contributors
Person
Tokens
Prop
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maxim levitsky
maxim levitsky
106
98.15%
1
50.00%
joe perches
joe perches
2
1.85%
1
50.00%
Total
108
100.00%
2
100.00%

/* end transmission */


static void ene_tx_disable(struct ene_device *dev)
{
	ene_write_reg(dev, ENE_CIRCFG, dev->saved_conf1);
	dev->tx_buffer = NULL;
}


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maxim levitsky
maxim levitsky
28
100.00%
1
100.00%
Total
28
100.00%
1
100.00%

/* TX one sample - must be called with dev->hw_lock*/


static void ene_tx_sample(struct ene_device *dev)
{
	u8 raw_tx;
	u32 sample;
	bool pulse = dev->tx_sample_pulse;

	if (!dev->tx_buffer) {
		pr_warn("TX: BUG: attempt to transmit NULL buffer\n");
		return;
	}

	/* Grab next TX sample */
	if (!dev->tx_sample) {

		if (dev->tx_pos == dev->tx_len) {
			if (!dev->tx_done) {
				dbg("TX: no more data to send");
				dev->tx_done = true;
				goto exit;
			} else {
				dbg("TX: last sample sent by hardware");
				ene_tx_disable(dev);
				complete(&dev->tx_complete);
				return;
			}
		}

		sample = dev->tx_buffer[dev->tx_pos++];
		dev->tx_sample_pulse = !dev->tx_sample_pulse;

		dev->tx_sample = DIV_ROUND_CLOSEST(sample, sample_period);

		if (!dev->tx_sample)
			dev->tx_sample = 1;
	}

	raw_tx = min(dev->tx_sample , (unsigned int)ENE_CIRRLC_OUT_MASK);
	dev->tx_sample -= raw_tx;

	dbg("TX: sample %8d (%s)", raw_tx * sample_period,
						pulse ? "pulse" : "space");
	if (pulse)
		raw_tx |= ENE_CIRRLC_OUT_PULSE;

	ene_write_reg(dev,
		dev->tx_reg ? ENE_CIRRLC_OUT1 : ENE_CIRRLC_OUT0, raw_tx);

	dev->tx_reg = !dev->tx_reg;
exit:
	/* simulate TX done interrupt */
	if (txsim)
		mod_timer(&dev->tx_sim_timer, jiffies + HZ / 500);
}

Contributors
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maxim levitsky
maxim levitsky
238
99.17%
4
80.00%
joe perches
joe perches
2
0.83%
1
20.00%
Total
240
100.00%
5
100.00%

/* timer to simulate tx done interrupt */


static void ene_tx_irqsim(unsigned long data)
{
	struct ene_device *dev = (struct ene_device *)data;
	unsigned long flags;

	spin_lock_irqsave(&dev->hw_lock, flags);
	ene_tx_sample(dev);
	spin_unlock_irqrestore(&dev->hw_lock, flags);
}


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maxim levitsky
maxim levitsky
51
100.00%
4
100.00%
Total
51
100.00%
4
100.00%

/* read irq status and ack it */


static int ene_irq_status(struct ene_device *dev)
{
	u8 irq_status;
	u8 fw_flags1, fw_flags2;
	int retval = 0;

	fw_flags2 = ene_read_reg(dev, ENE_FW2);

	if (dev->hw_revision < ENE_HW_C) {
		irq_status = ene_read_reg(dev, ENEB_IRQ_STATUS);

		if (!(irq_status & ENEB_IRQ_STATUS_IR))
			return 0;

		ene_clear_reg_mask(dev, ENEB_IRQ_STATUS, ENEB_IRQ_STATUS_IR);
		return ENE_IRQ_RX;
	}

	irq_status = ene_read_reg(dev, ENE_IRQ);
	if (!(irq_status & ENE_IRQ_STATUS))
		return 0;

	/* original driver does that twice - a workaround ? */
	ene_write_reg(dev, ENE_IRQ, irq_status & ~ENE_IRQ_STATUS);
	ene_write_reg(dev, ENE_IRQ, irq_status & ~ENE_IRQ_STATUS);

	/* check RX interrupt */
	if (fw_flags2 & ENE_FW2_RXIRQ) {
		retval |= ENE_IRQ_RX;
		ene_write_reg(dev, ENE_FW2, fw_flags2 & ~ENE_FW2_RXIRQ);
	}

	/* check TX interrupt */
	fw_flags1 = ene_read_reg(dev, ENE_FW1);
	if (fw_flags1 & ENE_FW1_TXIRQ) {
		ene_write_reg(dev, ENE_FW1, fw_flags1 & ~ENE_FW1_TXIRQ);
		retval |= ENE_IRQ_TX;
	}

	return retval;
}

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maxim levitsky
maxim levitsky
184
100.00%
4
100.00%
Total
184
100.00%
4
100.00%

/* interrupt handler */


static irqreturn_t ene_isr(int irq, void *data)
{
	u16 hw_value, reg;
	int hw_sample, irq_status;
	bool pulse;
	unsigned long flags;
	irqreturn_t retval = IRQ_NONE;
	struct ene_device *dev = (struct ene_device *)data;
	DEFINE_IR_RAW_EVENT(ev);

	spin_lock_irqsave(&dev->hw_lock, flags);

	dbg_verbose("ISR called");
	ene_rx_read_hw_pointer(dev);
	irq_status = ene_irq_status(dev);

	if (!irq_status)
		goto unlock;

	retval = IRQ_HANDLED;

	if (irq_status & ENE_IRQ_TX) {
		dbg_verbose("TX interrupt");
		if (!dev->hw_learning_and_tx_capable) {
			dbg("TX interrupt on unsupported device!");
			goto unlock;
		}
		ene_tx_sample(dev);
	}

	if (!(irq_status & ENE_IRQ_RX))
		goto unlock;

	dbg_verbose("RX interrupt");

	if (dev->hw_learning_and_tx_capable)
		ene_rx_sense_carrier(dev);

	/* On hardware that don't support extra buffer we need to trust
                the interrupt and not track the read pointer */
	if (!dev->hw_extra_buffer)
		dev->r_pointer = dev->w_pointer == 0 ? ENE_FW_PACKET_SIZE : 0;

	while (1) {

		reg = ene_rx_get_sample_reg(dev);

		dbg_verbose("next sample to read at: %04x", reg);
		if (!reg)
			break;

		hw_value = ene_read_reg(dev, reg);

		if (dev->rx_fan_input_inuse) {

			int offset = ENE_FW_SMPL_BUF_FAN - ENE_FW_SAMPLE_BUFFER;

			/* read high part of the sample */
			hw_value |= ene_read_reg(dev, reg + offset) << 8;
			pulse = hw_value & ENE_FW_SMPL_BUF_FAN_PLS;

			/* clear space bit, and other unused bits */
			hw_value &= ENE_FW_SMPL_BUF_FAN_MSK;
			hw_sample = hw_value * ENE_FW_SAMPLE_PERIOD_FAN;

		} else {
			pulse = !(hw_value & ENE_FW_SAMPLE_SPACE);
			hw_value &= ~ENE_FW_SAMPLE_SPACE;
			hw_sample = hw_value * sample_period;

			if (dev->rx_period_adjust) {
				hw_sample *= 100;
				hw_sample /= (100 + dev->rx_period_adjust);
			}
		}

		if (!dev->hw_extra_buffer && !hw_sample) {
			dev->r_pointer = dev->w_pointer;
			continue;
		}

		dbg("RX: %d (%s)", hw_sample, pulse ? "pulse" : "space");

		ev.duration = US_TO_NS(hw_sample);
		ev.pulse = pulse;
		ir_raw_event_store_with_filter(dev->rdev, &ev);
	}

	ir_raw_event_handle(dev->rdev);
unlock:
	spin_unlock_irqrestore(&dev->hw_lock, flags);
	return retval;
}

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maxim levitsky
maxim levitsky
380
99.22%
6
75.00%
david hardeman
david hardeman
2
0.52%
1
12.50%
jarod wilson
jarod wilson
1
0.26%
1
12.50%
Total
383
100.00%
8
100.00%

/* Initialize default settings */


static void ene_setup_default_settings(struct ene_device *dev)
{
	dev->tx_period = 32;
	dev->tx_duty_cycle = 50; /*%*/
	dev->transmitter_mask = 0x03;
	dev->learning_mode_enabled = learning_mode_force;

	/* Set reasonable default timeout */
	dev->rdev->timeout = US_TO_NS(150000);
}

Contributors
Person
Tokens
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CommitProp
maxim levitsky
maxim levitsky
46
95.83%
5
71.43%
david hardeman
david hardeman
1
2.08%
1
14.29%
jarod wilson
jarod wilson
1
2.08%
1
14.29%
Total
48
100.00%
7
100.00%

/* Upload all hardware settings at once. Used at load and resume time */


static void ene_setup_hw_settings(struct ene_device *dev)
{
	if (dev->hw_learning_and_tx_capable) {
		ene_tx_set_carrier(dev);
		ene_tx_set_transmitters(dev);
	}

	ene_rx_setup(dev);
}

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maxim levitsky
maxim levitsky
34
100.00%
1
100.00%
Total
34
100.00%
1
100.00%

/* outside interface: called on first open*/


static int ene_open(struct rc_dev *rdev)
{
	struct ene_device *dev = rdev->priv;
	unsigned long flags;

	spin_lock_irqsave(&dev->hw_lock, flags);
	ene_rx_enable(dev);
	spin_unlock_irqrestore(&dev->hw_lock, flags);
	return 0;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
maxim levitsky
maxim levitsky
46
88.46%
2
66.67%
david hardeman
david hardeman
6
11.54%
1
33.33%
Total
52
100.00%
3
100.00%

/* outside interface: called on device close*/


static void ene_close(struct rc_dev *rdev)
{
	struct ene_device *dev = rdev->priv;
	unsigned long flags;
	spin_lock_irqsave(&dev->hw_lock, flags);

	ene_rx_disable(dev);
	spin_unlock_irqrestore(&dev->hw_lock, flags);
}

Contributors
Person
Tokens
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Commits
CommitProp
maxim levitsky
maxim levitsky
43
87.76%
2
66.67%
david hardeman
david hardeman
6
12.24%
1
33.33%
Total
49
100.00%
3
100.00%

/* outside interface: set transmitter mask */


static int ene_set_tx_mask(struct rc_dev *rdev, u32 tx_mask)
{
	struct ene_device *dev = rdev->priv;
	dbg("TX: attempt to set transmitter mask %02x", tx_mask);

	/* invalid txmask */
	if (!tx_mask || tx_mask & ~0x03) {
		dbg("TX: invalid mask");
		/* return count of transmitters */
		return 2;
	}

	dev->transmitter_mask = tx_mask;
	ene_tx_set_transmitters(dev);
	return 0;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
maxim levitsky
maxim levitsky
60
90.91%
4
80.00%
david hardeman
david hardeman
6
9.09%
1
20.00%
Total
66
100.00%
5
100.00%

/* outside interface : set tx carrier */


static int ene_set_tx_carrier(struct rc_dev *rdev, u32 carrier)
{
	struct ene_device *dev = rdev->priv;
	u32 period;

	dbg("TX: attempt to set tx carrier to %d kHz", carrier);
	if (carrier == 0)
		return -EINVAL;

	period = 2000000 / carrier;
	if (period && (period > ENE_CIRMOD_PRD_MAX ||
			period < ENE_CIRMOD_PRD_MIN)) {

		dbg("TX: out of range %d-%d kHz carrier",
			2000 / ENE_CIRMOD_PRD_MIN, 2000 / ENE_CIRMOD_PRD_MAX);
		return -1;
	}

	dev->tx_period = period;
	ene_tx_set_carrier(dev);
	return 0;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
maxim levitsky
maxim levitsky
74
77.08%
4
66.67%
dan carpenter
dan carpenter
16
16.67%
1
16.67%
david hardeman
david hardeman
6
6.25%
1
16.67%
Total
96
100.00%
6
100.00%

/*outside interface : set tx duty cycle */


static int ene_set_tx_duty_cycle(struct rc_dev *rdev, u32 duty_cycle)
{
	struct ene_device *dev = rdev->priv;
	dbg("TX: setting duty cycle to %d%%", duty_cycle);
	dev->tx_duty_cycle = duty_cycle;
	ene_tx_set_carrier(dev);
	return 0;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
maxim levitsky
maxim levitsky
38
86.36%
4
80.00%
david hardeman
david hardeman
6
13.64%
1
20.00%
Total
44
100.00%
5
100.00%

/* outside interface: enable learning mode */


static int ene_set_learning_mode(struct rc_dev *rdev, int enable)
{
	struct ene_device *dev = rdev->priv;
	unsigned long flags;
	if (enable == dev->learning_mode_enabled)
		return 0;

	spin_lock_irqsave(&dev->hw_lock, flags);
	dev->learning_mode_enabled = enable;
	ene_rx_disable(dev);
	ene_rx_setup(dev);
	ene_rx_enable(dev);
	spin_unlock_irqrestore(&dev->hw_lock, flags);
	return 0;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
maxim levitsky
maxim levitsky
76
92.68%
4
80.00%
david hardeman
david hardeman
6
7.32%
1
20.00%
Total
82
100.00%
5
100.00%



static int ene_set_carrier_report(struct rc_dev *rdev, int enable)
{
	struct ene_device *dev = rdev->priv;
	unsigned long flags;

	if (enable == dev->carrier_detect_enabled)
		return 0;

	spin_lock_irqsave(&dev->hw_lock, flags);
	dev->carrier_detect_enabled = enable;
	ene_rx_disable(dev);
	ene_rx_setup(dev);
	ene_rx_enable(dev);
	spin_unlock_irqrestore(&dev->hw_lock, flags);
	return 0;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
maxim levitsky
maxim levitsky
76
92.68%
1
50.00%
david hardeman
david hardeman
6
7.32%
1
50.00%
Total
82
100.00%
2
100.00%

/* outside interface: enable or disable idle mode */


static void ene_set_idle(struct rc_dev *rdev, bool idle)
{
	struct ene_device *dev = rdev->priv;

	if (idle) {
		ene_rx_reset(dev);
		dbg("RX: end of data");
	}
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
maxim levitsky
maxim levitsky
26
66.67%
5
83.33%
david hardeman
david hardeman
13
33.33%
1
16.67%
Total
39
100.00%
6
100.00%

/* outside interface: transmit */


static int ene_transmit(struct rc_dev *rdev, unsigned *buf, unsigned n)
{
	struct ene_device *dev = rdev->priv;
	unsigned long flags;

	dev->tx_buffer = buf;
	dev->tx_len = n;
	dev->tx_pos = 0;
	dev->tx_reg = 0;
	dev->tx_done = 0;
	dev->tx_sample = 0;
	dev->tx_sample_pulse = false;

	dbg("TX: %d samples", dev->tx_len);

	spin_lock_irqsave(&dev->hw_lock, flags);

	ene_tx_enable(dev);

	/* Transmit first two samples */
	ene_tx_sample(dev);
	ene_tx_sample(dev);

	spin_unlock_irqrestore(&dev->hw_lock, flags);

	if (wait_for_completion_timeout(&dev->tx_complete, 2 * HZ) == 0) {
		dbg("TX: timeout");
		spin_lock_irqsave(&dev->hw_lock, flags);
		ene_tx_disable(dev);
		spin_unlock_irqrestore(&dev->hw_lock, flags);
	} else
		dbg("TX: done");
	return n;
}

Contributors
Person
Tokens
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CommitProp
maxim levitsky
maxim levitsky
166
94.86%
4
57.14%
david hardeman
david hardeman
8
4.57%
2
28.57%
mauro carvalho chehab
mauro carvalho chehab
1
0.57%
1
14.29%
Total
175
100.00%
7
100.00%

/* probe entry */


static int ene_probe(struct pnp_dev *pnp_dev, const struct pnp_device_id *id)
{
	int error = -ENOMEM;
	struct rc_dev *rdev;
	struct ene_device *dev;

	/* allocate memory */
	dev = kzalloc(sizeof(struct ene_device), GFP_KERNEL);
	rdev = rc_allocate_device();
	if (!dev || !rdev)
		goto exit_free_dev_rdev;

	/* validate resources */
	error = -ENODEV;

	/* init these to -1, as 0 is valid for both */
	dev->hw_io = -1;
	dev->irq = -1;

	if (!pnp_port_valid(pnp_dev, 0) ||
	    pnp_port_len(pnp_dev, 0) < ENE_IO_SIZE)
		goto exit_free_dev_rdev;

	if (!pnp_irq_valid(pnp_dev, 0))
		goto exit_free_dev_rdev;

	spin_lock_init(&dev->hw_lock);

	dev->hw_io = pnp_port_start(pnp_dev, 0);
	dev->irq = pnp_irq(pnp_dev, 0);


	pnp_set_drvdata(pnp_dev, dev);
	dev->pnp_dev = pnp_dev;

	/* don't allow too short/long sample periods */
	if (sample_period < 5 || sample_period > 0x7F)
		sample_period = ENE_DEFAULT_SAMPLE_PERIOD;

	/* detect hardware version and features */
	error = ene_hw_detect(dev);
	if (error)
		goto exit_free_dev_rdev;

	if (!dev->hw_learning_and_tx_capable && txsim) {
		dev->hw_learning_and_tx_capable = true;
		setup_timer(&dev->tx_sim_timer, ene_tx_irqsim,
						(long unsigned int)dev);
		pr_warn("Simulation of TX activated\n");
	}

	if (!dev->hw_learning_and_tx_capable)
		learning_mode_force = false;

	rdev->driver_type = RC_DRIVER_IR_RAW;
	rdev->allowed_protocols = RC_BIT_ALL;
	rdev->priv = dev;
	rdev->open = ene_open;
	rdev->close = ene_close;
	rdev->s_idle = ene_set_idle;
	rdev->driver_name = ENE_DRIVER_NAME;
	rdev->map_name = RC_MAP_RC6_MCE;
	rdev->input_name = "ENE eHome Infrared Remote Receiver";

	if (dev->hw_learning_and_tx_capable) {
		rdev->s_learning_mode = ene_set_learning_mode;
		init_completion(&dev->tx_complete);
		rdev->tx_ir = ene_transmit;
		rdev->s_tx_mask = ene_set_tx_mask;
		rdev->s_tx_carrier = ene_set_tx_carrier;
		rdev->s_tx_duty_cycle = ene_set_tx_duty_cycle;
		rdev->s_carrier_report = ene_set_carrier_report;
		rdev->input_name = "ENE eHome Infrared Remote Transceiver";
	}

	dev->rdev = rdev;

	ene_rx_setup_hw_buffer(dev);
	ene_setup_default_settings(dev);
	ene_setup_hw_settings(dev);

	device_set_wakeup_capable(&pnp_dev->dev, true);
	device_set_wakeup_enable(&pnp_dev->dev, true);

	error = rc_register_device(rdev);
	if (error < 0)
		goto exit_free_dev_rdev;

	/* claim the resources */
	error = -EBUSY;
	if (!request_region(dev->hw_io, ENE_IO_SIZE, ENE_DRIVER_NAME)) {
		goto exit_unregister_device;
	}

	if (request_irq(dev->irq, ene_isr,
			IRQF_SHARED, ENE_DRIVER_NAME, (void *)dev)) {
		goto exit_release_hw_io;
	}

	pr_notice("driver has been successfully loaded\n");
	return 0;

exit_release_hw_io:
	release_region(dev->hw_io, ENE_IO_SIZE);
exit_unregister_device:
	rc_unregister_device(rdev);
	rdev = NULL;
exit_free_dev_rdev:
	rc_free_device(rdev);
	kfree(dev);
	return error;
}

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maxim levitsky
maxim levitsky
340
67.06%
7
36.84%
luis henriques
luis henriques
60
11.83%
2
10.53%
david hardeman
david hardeman
45
8.88%
3
15.79%
matthijs kooijman
matthijs kooijman
32
6.31%
3
15.79%
kyle mcmartin
kyle mcmartin
21
4.14%
1
5.26%
wei yongjun
wei yongjun
4
0.79%
1
5.26%
joe perches
joe perches
4
0.79%
1
5.26%
jiri slaby
jiri slaby
1
0.20%
1
5.26%
Total
507
100.00%
19
100.00%

/* main unload function */


static void ene_remove(struct pnp_dev *pnp_dev)
{
	struct ene_device *dev = pnp_get_drvdata(pnp_dev);
	unsigned long flags;

	spin_lock_irqsave(&dev->hw_lock, flags);
	ene_rx_disable(dev);
	ene_rx_restore_hw_buffer(dev);
	spin_unlock_irqrestore(&dev->hw_lock, flags);

	free_irq(dev->irq, dev);
	release_region(dev->hw_io, ENE_IO_SIZE);
	rc_unregister_device(dev->rdev);
	kfree(dev);
}

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maxim levitsky
83
97.65%
3
75.00%
david hardeman
david hardeman
2
2.35%
1
25.00%
Total
85
100.00%
4
100.00%

/* enable wake on IR (wakes on specific button on original remote) */


static void ene_enable_wake(struct ene_device *dev, bool enable)
{
	dbg("wake on IR %s", enable ? "enabled" : "disabled");
	ene_set_clear_reg_mask(dev, ENE_FW1, ENE_FW1_WAKE, enable);
}

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maxim levitsky
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100.00%
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36
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3
100.00%

#ifdef CONFIG_PM


static int ene_suspend(struct pnp_dev *pnp_dev, pm_message_t state)
{
	struct ene_device *dev = pnp_get_drvdata(pnp_dev);
	bool wake = device_may_wakeup(&dev->pnp_dev->dev);

	if (!wake && dev->rx_enabled)
		ene_rx_disable_hw(dev);

	ene_enable_wake(dev, wake);
	return 0;
}

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2
100.00%



static int ene_resume(struct pnp_dev *pnp_dev)
{
	struct ene_device *dev = pnp_get_drvdata(pnp_dev);
	ene_setup_hw_settings(dev);

	if (dev->rx_enabled)
		ene_rx_enable(dev);

	ene_enable_wake(dev, false);
	return 0;
}
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maxim levitsky
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3
100.00%
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47
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3
100.00%

#endif



static void ene_shutdown(struct pnp_dev *pnp_dev)
{
	struct ene_device *dev = pnp_get_drvdata(pnp_dev);
	ene_enable_wake(dev, true);
}

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static const struct pnp_device_id ene_ids[] = {
	{.id = "ENE0100",},
	{.id = "ENE0200",},
	{.id = "ENE0201",},
	{.id = "ENE0202",},
	{},
};


static struct pnp_driver ene_driver = {
	.name = ENE_DRIVER_NAME,
	.id_table = ene_ids,
	.flags = PNP_DRIVER_RES_DO_NOT_CHANGE,

	.probe = ene_probe,
	.remove = ene_remove,
#ifdef CONFIG_PM
	.suspend = ene_suspend,
	.resume = ene_resume,
#endif
	.shutdown = ene_shutdown,
};

module_param(sample_period, int, S_IRUGO);
MODULE_PARM_DESC(sample_period, "Hardware sample period (50 us default)");

module_param(learning_mode_force, bool, S_IRUGO);
MODULE_PARM_DESC(learning_mode_force, "Enable learning mode by default");

module_param(debug, int, S_IRUGO | S_IWUSR);
MODULE_PARM_DESC(debug, "Debug level");

module_param(txsim, bool, S_IRUGO);
MODULE_PARM_DESC(txsim,
	"Simulate TX features on unsupported hardware (dangerous)");

MODULE_DEVICE_TABLE(pnp, ene_ids);
MODULE_DESCRIPTION
	("Infrared input driver for KB3926B/C/D/E/F "
	"(aka ENE0100/ENE0200/ENE0201/ENE0202) CIR port");

MODULE_AUTHOR("Maxim Levitsky");
MODULE_LICENSE("GPL");


module_pnp_driver(ene_driver);
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maxim levitsky
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30.00%
david hardeman
david hardeman
131
2.50%
4
13.33%
joe perches
joe perches
67
1.28%
1
3.33%
luis henriques
luis henriques
60
1.14%
2
6.67%
matthijs kooijman
matthijs kooijman
32
0.61%
3
10.00%
kyle mcmartin
kyle mcmartin
21
0.40%
1
3.33%
dan carpenter
dan carpenter
16
0.30%
1
3.33%
jarod wilson
jarod wilson
8
0.15%
1
3.33%
wei yongjun
wei yongjun
4
0.08%
1
3.33%
mauro carvalho chehab
mauro carvalho chehab
3
0.06%
3
10.00%
peter huewe
peter huewe
2
0.04%
1
3.33%
jiri slaby
jiri slaby
1
0.02%
1
3.33%
paul bolle
paul bolle
1
0.02%
1
3.33%
lucas de marchi
lucas de marchi
1
0.02%
1
3.33%
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Directory: drivers/media/rc

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