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Commit 5b2e303f authored by David Härdeman's avatar David Härdeman Committed by Mauro Carvalho Chehab
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[media] rc-core: convert winbond-cir 

Move winbond-cir from drivers/input/misc/ into drivers/media/rc/
and convert it to use rc-core.
Signed-off-by: default avatarDavid Härdeman <david@hardeman.nu>
Signed-off-by: default avatarMauro Carvalho Chehab <mchehab@redhat.com>
parent d8b4b582
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Showing with 123 additions and 800 deletions
drivers/input/misc/Kconfig
View file @ 5b2e303f
......@@ -294,24 +294,6 @@ config INPUT_SGI_BTNS
To compile this driver as a module, choose M here: the
module will be called sgi_btns.
config INPUT_WINBOND_CIR
tristate "Winbond IR remote control"
depends on X86 && PNP
select NEW_LEDS
select LEDS_CLASS
select LEDS_TRIGGERS
select BITREVERSE
help
Say Y here if you want to use the IR remote functionality found
in some Winbond SuperI/O chips. Currently only the WPCD376I
chip is supported (included in some Intel Media series motherboards).
IR Receive and wake-on-IR from suspend and power-off is currently
supported.
To compile this driver as a module, choose M here: the module will be
called winbond_cir.
config HP_SDC_RTC
tristate "HP SDC Real Time Clock"
depends on (GSC || HP300) && SERIO
......
drivers/input/misc/Makefile
View file @ 5b2e303f
......@@ -38,7 +38,6 @@ obj-$(CONFIG_INPUT_SPARCSPKR) += sparcspkr.o
obj-$(CONFIG_INPUT_TWL4030_PWRBUTTON) += twl4030-pwrbutton.o
obj-$(CONFIG_INPUT_TWL4030_VIBRA) += twl4030-vibra.o
obj-$(CONFIG_INPUT_UINPUT) += uinput.o
obj-$(CONFIG_INPUT_WINBOND_CIR) += winbond-cir.o
obj-$(CONFIG_INPUT_WISTRON_BTNS) += wistron_btns.o
obj-$(CONFIG_INPUT_WM831X_ON) += wm831x-on.o
obj-$(CONFIG_INPUT_YEALINK) += yealink.o
......
drivers/media/rc/Kconfig
View file @ 5b2e303f
......@@ -164,4 +164,21 @@ config IR_STREAMZAP
To compile this driver as a module, choose M here: the
module will be called streamzap.
config IR_WINBOND_CIR
tristate "Winbond IR remote control"
depends on X86 && PNP
depends on IR_CORE
select NEW_LEDS
select LEDS_CLASS
select LEDS_TRIGGERS
select BITREVERSE
---help---
Say Y here if you want to use the IR remote functionality found
in some Winbond SuperI/O chips. Currently only the WPCD376I
chip is supported (included in some Intel Media series
motherboards).
To compile this driver as a module, choose M here: the module will
be called winbond_cir.
endif #IR_CORE
drivers/media/rc/Makefile
View file @ 5b2e303f
......@@ -20,3 +20,4 @@ obj-$(CONFIG_IR_MCEUSB) += mceusb.o
obj-$(CONFIG_IR_NUVOTON) += nuvoton-cir.o
obj-$(CONFIG_IR_ENE) += ene_ir.o
obj-$(CONFIG_IR_STREAMZAP) += streamzap.o
obj-$(CONFIG_IR_WINBOND_CIR) += winbond-cir.o
drivers/input/misc/winbond-cir.c → drivers/media/rc/winbond-cir.c
View file @ 5b2e303f
......@@ -7,10 +7,10 @@
* with minor modifications.
*
* Original Author: David Hrdeman <david@hardeman.nu>
* Copyright (C) 2009 David Hrdeman <david@hardeman.nu>
* Copyright (C) 2009 - 2010 David Hrdeman <david@hardeman.nu>
*
* Dedicated to Matilda, my newborn daughter, without whose loving attention
* this driver would have been finished in half the time and with a fraction
* Dedicated to my daughter Matilda, without whose loving attention this
* driver would have been finished in half the time and with a fraction
* of the bugs.
*
* Written using:
......@@ -19,15 +19,11 @@
* o DSDT dumps
*
* Supported features:
* o RC6
* o Wake-On-CIR functionality
*
* To do:
* o Test NEC and RC5
*
* Left as an exercise for the reader:
* o Learning (I have neither the hardware, nor the need)
* o IR Transmit (ibid)
* o Learning
* o IR Transmit
*
* 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
......@@ -48,15 +44,13 @@
#include <linux/pnp.h>
#include <linux/interrupt.h>
#include <linux/timer.h>
#include <linux/input.h>
#include <linux/leds.h>
#include <linux/list.h>
#include <linux/spinlock.h>
#include <linux/pci_ids.h>
#include <linux/io.h>
#include <linux/bitrev.h>
#include <linux/bitops.h>
#include <linux/slab.h>
#include <media/ir-core.h>
#define DRVNAME "winbond-cir"
......@@ -108,7 +102,7 @@
#define WBCIR_REG_SP3_IRCR2 0x04 /* Infrared Control 2 */
/* Bank 6 */
#define WBCIR_REG_SP3_IRCR3 0x00 /* Infrared Control 3 */
#define WBCIR_REG_SP3_SIR_PW 0x02 /* SIR Pulse Width */
#define WBCIR_REG_SP3_SIR_PW 0x02 /* SIR Pulse Width */
/* Bank 7 */
#define WBCIR_REG_SP3_IRRXDC 0x00 /* IR RX Demod Control */
#define WBCIR_REG_SP3_IRTXMC 0x01 /* IR TX Mod Control */
......@@ -153,7 +147,7 @@ enum wbcir_bank {
WBCIR_BANK_7 = 0xF4,
};
/* Supported IR Protocols */
/* Supported power-on IR Protocols */
enum wbcir_protocol {
IR_PROTOCOL_RC5 = 0x0,
IR_PROTOCOL_NEC = 0x1,
......@@ -164,113 +158,35 @@ enum wbcir_protocol {
#define WBCIR_NAME "Winbond CIR"
#define WBCIR_ID_FAMILY 0xF1 /* Family ID for the WPCD376I */
#define WBCIR_ID_CHIP 0x04 /* Chip ID for the WPCD376I */
#define IR_KEYPRESS_TIMEOUT 250 /* FIXME: should be per-protocol? */
#define INVALID_SCANCODE 0x7FFFFFFF /* Invalid with all protos */
#define WAKEUP_IOMEM_LEN 0x10 /* Wake-Up I/O Reg Len */
#define EHFUNC_IOMEM_LEN 0x10 /* Enhanced Func I/O Reg Len */
#define SP_IOMEM_LEN 0x08 /* Serial Port 3 (IR) Reg Len */
#define WBCIR_MAX_IDLE_BYTES 10
static DEFINE_SPINLOCK(wbcir_lock);
static DEFINE_RWLOCK(keytable_lock);
struct wbcir_key {
u32 scancode;
unsigned int keycode;
};
struct wbcir_keyentry {
struct wbcir_key key;
struct list_head list;
};
static struct wbcir_key rc6_def_keymap[] = {
{ 0x800F0400, KEY_NUMERIC_0 },
{ 0x800F0401, KEY_NUMERIC_1 },
{ 0x800F0402, KEY_NUMERIC_2 },
{ 0x800F0403, KEY_NUMERIC_3 },
{ 0x800F0404, KEY_NUMERIC_4 },
{ 0x800F0405, KEY_NUMERIC_5 },
{ 0x800F0406, KEY_NUMERIC_6 },
{ 0x800F0407, KEY_NUMERIC_7 },
{ 0x800F0408, KEY_NUMERIC_8 },
{ 0x800F0409, KEY_NUMERIC_9 },
{ 0x800F041D, KEY_NUMERIC_STAR },
{ 0x800F041C, KEY_NUMERIC_POUND },
{ 0x800F0410, KEY_VOLUMEUP },
{ 0x800F0411, KEY_VOLUMEDOWN },
{ 0x800F0412, KEY_CHANNELUP },
{ 0x800F0413, KEY_CHANNELDOWN },
{ 0x800F040E, KEY_MUTE },
{ 0x800F040D, KEY_VENDOR }, /* Vista Logo Key */
{ 0x800F041E, KEY_UP },
{ 0x800F041F, KEY_DOWN },
{ 0x800F0420, KEY_LEFT },
{ 0x800F0421, KEY_RIGHT },
{ 0x800F0422, KEY_OK },
{ 0x800F0423, KEY_ESC },
{ 0x800F040F, KEY_INFO },
{ 0x800F040A, KEY_CLEAR },
{ 0x800F040B, KEY_ENTER },
{ 0x800F045B, KEY_RED },
{ 0x800F045C, KEY_GREEN },
{ 0x800F045D, KEY_YELLOW },
{ 0x800F045E, KEY_BLUE },
{ 0x800F045A, KEY_TEXT },
{ 0x800F0427, KEY_SWITCHVIDEOMODE },
{ 0x800F040C, KEY_POWER },
{ 0x800F0450, KEY_RADIO },
{ 0x800F0448, KEY_PVR },
{ 0x800F0447, KEY_AUDIO },
{ 0x800F0426, KEY_EPG },
{ 0x800F0449, KEY_CAMERA },
{ 0x800F0425, KEY_TV },
{ 0x800F044A, KEY_VIDEO },
{ 0x800F0424, KEY_DVD },
{ 0x800F0416, KEY_PLAY },
{ 0x800F0418, KEY_PAUSE },
{ 0x800F0419, KEY_STOP },
{ 0x800F0414, KEY_FASTFORWARD },
{ 0x800F041A, KEY_NEXT },
{ 0x800F041B, KEY_PREVIOUS },
{ 0x800F0415, KEY_REWIND },
{ 0x800F0417, KEY_RECORD },
};
/* Registers and other state is protected by wbcir_lock */
/* Per-device data */
struct wbcir_data {
spinlock_t spinlock;
unsigned long wbase; /* Wake-Up Baseaddr */
unsigned long ebase; /* Enhanced Func. Baseaddr */
unsigned long sbase; /* Serial Port Baseaddr */
unsigned int irq; /* Serial Port IRQ */
struct input_dev *input_dev;
struct timer_list timer_keyup;
struct rc_dev *dev;
struct led_trigger *rxtrigger;
struct led_trigger *txtrigger;
struct led_classdev led;
u32 last_scancode;
unsigned int last_keycode;
u8 last_toggle;
u8 keypressed;
unsigned long keyup_jiffies;
unsigned int idle_count;
/* RX irdata and parsing state */
unsigned long irdata[30];
unsigned int irdata_count;
unsigned int irdata_idle;
unsigned int irdata_off;
unsigned int irdata_error;
/* Protected by keytable_lock */
struct list_head keytable;
/* RX irdata state */
bool irdata_active;
bool irdata_error;
struct ir_raw_event ev;
};
static enum wbcir_protocol protocol = IR_PROTOCOL_RC6;
module_param(protocol, uint, 0444);
MODULE_PARM_DESC(protocol, "IR protocol to use "
MODULE_PARM_DESC(protocol, "IR protocol to use for the power-on command "
"(0 = RC5, 1 = NEC, 2 = RC6A, default)");
static int invert; /* default = 0 */
......@@ -327,7 +243,7 @@ wbcir_led_brightness_get(struct led_classdev *led_cdev)
static void
wbcir_led_brightness_set(struct led_classdev *led_cdev,
enum led_brightness brightness)
enum led_brightness brightness)
{
struct wbcir_data *data = container_of(led_cdev,
struct wbcir_data,
......@@ -338,7 +254,7 @@ wbcir_led_brightness_set(struct led_classdev *led_cdev,
WBCIR_LED_ENABLE);
}
/* Manchester encodes bits to RC6 message cells (see wbcir_parse_rc6) */
/* Manchester encodes bits to RC6 message cells (see wbcir_shutdown) */
static u8
wbcir_to_rc6cells(u8 val)
{
......@@ -357,579 +273,6 @@ wbcir_to_rc6cells(u8 val)
return coded;
}
/*****************************************************************************
*
* INPUT FUNCTIONS
*
*****************************************************************************/
static unsigned int
wbcir_do_getkeycode(struct wbcir_data *data, u32 scancode)
{
struct wbcir_keyentry *keyentry;
unsigned int keycode = KEY_RESERVED;
unsigned long flags;
read_lock_irqsave(&keytable_lock, flags);
list_for_each_entry(keyentry, &data->keytable, list) {
if (keyentry->key.scancode == scancode) {
keycode = keyentry->key.keycode;
break;
}
}
read_unlock_irqrestore(&keytable_lock, flags);
return keycode;
}
static int
wbcir_getkeycode(struct input_dev *dev,
unsigned int scancode, unsigned int *keycode)
{
struct wbcir_data *data = input_get_drvdata(dev);
*keycode = wbcir_do_getkeycode(data, scancode);
return 0;
}
static int
wbcir_setkeycode(struct input_dev *dev,
unsigned int scancode, unsigned int keycode)
{
struct wbcir_data *data = input_get_drvdata(dev);
struct wbcir_keyentry *keyentry;
struct wbcir_keyentry *new_keyentry;
unsigned long flags;
unsigned int old_keycode = KEY_RESERVED;
new_keyentry = kmalloc(sizeof(*new_keyentry), GFP_KERNEL);
if (!new_keyentry)
return -ENOMEM;
write_lock_irqsave(&keytable_lock, flags);
list_for_each_entry(keyentry, &data->keytable, list) {
if (keyentry->key.scancode != scancode)
continue;
old_keycode = keyentry->key.keycode;
keyentry->key.keycode = keycode;
if (keyentry->key.keycode == KEY_RESERVED) {
list_del(&keyentry->list);
kfree(keyentry);
}
break;
}
set_bit(keycode, dev->keybit);
if (old_keycode == KEY_RESERVED) {
new_keyentry->key.scancode = scancode;
new_keyentry->key.keycode = keycode;
list_add(&new_keyentry->list, &data->keytable);
} else {
kfree(new_keyentry);
clear_bit(old_keycode, dev->keybit);
list_for_each_entry(keyentry, &data->keytable, list) {
if (keyentry->key.keycode == old_keycode) {
set_bit(old_keycode, dev->keybit);
break;
}
}
}
write_unlock_irqrestore(&keytable_lock, flags);
return 0;
}
/*
* Timer function to report keyup event some time after keydown is
* reported by the ISR.
*/
static void
wbcir_keyup(unsigned long cookie)
{
struct wbcir_data *data = (struct wbcir_data *)cookie;
unsigned long flags;
/*
* data->keyup_jiffies is used to prevent a race condition if a
* hardware interrupt occurs at this point and the keyup timer
* event is moved further into the future as a result.
*
* The timer will then be reactivated and this function called
* again in the future. We need to exit gracefully in that case
* to allow the input subsystem to do its auto-repeat magic or
* a keyup event might follow immediately after the keydown.
*/
spin_lock_irqsave(&wbcir_lock, flags);
if (time_is_after_eq_jiffies(data->keyup_jiffies) && data->keypressed) {
data->keypressed = 0;
led_trigger_event(data->rxtrigger, LED_OFF);
input_report_key(data->input_dev, data->last_keycode, 0);
input_sync(data->input_dev);
}
spin_unlock_irqrestore(&wbcir_lock, flags);
}
static void
wbcir_keydown(struct wbcir_data *data, u32 scancode, u8 toggle)
{
unsigned int keycode;
/* Repeat? */
if (data->last_scancode == scancode &&
data->last_toggle == toggle &&
data->keypressed)
goto set_timer;
data->last_scancode = scancode;
/* Do we need to release an old keypress? */
if (data->keypressed) {
input_report_key(data->input_dev, data->last_keycode, 0);
input_sync(data->input_dev);
data->keypressed = 0;
}
/* Report scancode */
input_event(data->input_dev, EV_MSC, MSC_SCAN, (int)scancode);
/* Do we know this scancode? */
keycode = wbcir_do_getkeycode(data, scancode);
if (keycode == KEY_RESERVED)
goto set_timer;
/* Register a keypress */
input_report_key(data->input_dev, keycode, 1);
data->keypressed = 1;
data->last_keycode = keycode;
data->last_toggle = toggle;
set_timer:
input_sync(data->input_dev);
led_trigger_event(data->rxtrigger,
data->keypressed ? LED_FULL : LED_OFF);
data->keyup_jiffies = jiffies + msecs_to_jiffies(IR_KEYPRESS_TIMEOUT);
mod_timer(&data->timer_keyup, data->keyup_jiffies);
}
/*****************************************************************************
*
* IR PARSING FUNCTIONS
*
*****************************************************************************/
/* Resets all irdata */
static void
wbcir_reset_irdata(struct wbcir_data *data)
{
memset(data->irdata, 0, sizeof(data->irdata));
data->irdata_count = 0;
data->irdata_off = 0;
data->irdata_error = 0;
data->idle_count = 0;
}
/* Adds one bit of irdata */
static void
add_irdata_bit(struct wbcir_data *data, int set)
{
if (data->irdata_count >= sizeof(data->irdata) * 8) {
data->irdata_error = 1;
return;
}
if (set)
__set_bit(data->irdata_count, data->irdata);
data->irdata_count++;
}
/* Gets count bits of irdata */
static u16
get_bits(struct wbcir_data *data, int count)
{
u16 val = 0x0;
if (data->irdata_count - data->irdata_off < count) {
data->irdata_error = 1;
return 0x0;
}
while (count > 0) {
val <<= 1;
if (test_bit(data->irdata_off, data->irdata))
val |= 0x1;
count--;
data->irdata_off++;
}
return val;
}
/* Reads 16 cells and converts them to a byte */
static u8
wbcir_rc6cells_to_byte(struct wbcir_data *data)
{
u16 raw = get_bits(data, 16);
u8 val = 0x00;
int bit;
for (bit = 0; bit < 8; bit++) {
switch (raw & 0x03) {
case 0x01:
break;
case 0x02:
val |= (0x01 << bit);
break;
default:
data->irdata_error = 1;
break;
}
raw >>= 2;
}
return val;
}
/* Decodes a number of bits from raw RC5 data */
static u8
wbcir_get_rc5bits(struct wbcir_data *data, unsigned int count)
{
u16 raw = get_bits(data, count * 2);
u8 val = 0x00;
int bit;
for (bit = 0; bit < count; bit++) {
switch (raw & 0x03) {
case 0x01:
val |= (0x01 << bit);
break;
case 0x02:
break;
default:
data->irdata_error = 1;
break;
}
raw >>= 2;
}
return val;
}
static void
wbcir_parse_rc6(struct device *dev, struct wbcir_data *data)
{
/*
* Normal bits are manchester coded as follows:
* cell0 + cell1 = logic "0"
* cell1 + cell0 = logic "1"
*
* The IR pulse has the following components:
*
* Leader - 6 * cell1 - discarded
* Gap - 2 * cell0 - discarded
* Start bit - Normal Coding - always "1"
* Mode Bit 2 - 0 - Normal Coding
* Toggle bit - Normal Coding with double bit time,
* e.g. cell0 + cell0 + cell1 + cell1
* means logic "0".
*
* The rest depends on the mode, the following modes are known:
*
* MODE 0:
* Address Bit 7 - 0 - Normal Coding
* Command Bit 7 - 0 - Normal Coding
*
* MODE 6:
* The above Toggle Bit is used as a submode bit, 0 = A, 1 = B.
* Submode B is for pointing devices, only remotes using submode A
* are supported.
*
* Customer range bit - 0 => Customer = 7 bits, 0...127
* 1 => Customer = 15 bits, 32768...65535
* Customer Bits - Normal Coding
*
* Customer codes are allocated by Philips. The rest of the bits
* are customer dependent. The following is commonly used (and the
* only supported config):
*
* Toggle Bit - Normal Coding
* Address Bit 6 - 0 - Normal Coding
* Command Bit 7 - 0 - Normal Coding
*
* All modes are followed by at least 6 * cell0.
*
* MODE 0 msglen:
* 1 * 2 (start bit) + 3 * 2 (mode) + 2 * 2 (toggle) +
* 8 * 2 (address) + 8 * 2 (command) =
* 44 cells
*
* MODE 6A msglen:
* 1 * 2 (start bit) + 3 * 2 (mode) + 2 * 2 (submode) +
* 1 * 2 (customer range bit) + 7/15 * 2 (customer bits) +
* 1 * 2 (toggle bit) + 7 * 2 (address) + 8 * 2 (command) =
* 60 - 76 cells
*/
u8 mode;
u8 toggle;
u16 customer = 0x0;
u8 address;
u8 command;
u32 scancode;
/* Leader mark */
while (get_bits(data, 1) && !data->irdata_error)
/* Do nothing */;
/* Leader space */
if (get_bits(data, 1)) {
dev_dbg(dev, "RC6 - Invalid leader space\n");
return;
}
/* Start bit */
if (get_bits(data, 2) != 0x02) {
dev_dbg(dev, "RC6 - Invalid start bit\n");
return;
}
/* Mode */
mode = get_bits(data, 6);
switch (mode) {
case 0x15: /* 010101 = b000 */
mode = 0;
break;
case 0x29: /* 101001 = b110 */
mode = 6;
break;
default:
dev_dbg(dev, "RC6 - Invalid mode\n");
return;
}
/* Toggle bit / Submode bit */
toggle = get_bits(data, 4);
switch (toggle) {
case 0x03:
toggle = 0;
break;
case 0x0C:
toggle = 1;
break;
default:
dev_dbg(dev, "RC6 - Toggle bit error\n");
break;
}
/* Customer */
if (mode == 6) {
if (toggle != 0) {
dev_dbg(dev, "RC6B - Not Supported\n");
return;
}
customer = wbcir_rc6cells_to_byte(data);
if (customer & 0x80) {
/* 15 bit customer value */
customer <<= 8;
customer |= wbcir_rc6cells_to_byte(data);
}
}
/* Address */
address = wbcir_rc6cells_to_byte(data);
if (mode == 6) {
toggle = address >> 7;
address &= 0x7F;
}
/* Command */
command = wbcir_rc6cells_to_byte(data);
/* Create scancode */
scancode = command;
scancode |= address << 8;
scancode |= customer << 16;
/* Last sanity check */
if (data->irdata_error) {
dev_dbg(dev, "RC6 - Cell error(s)\n");
return;
}
dev_dbg(dev, "IR-RC6 ad 0x%02X cm 0x%02X cu 0x%04X "
"toggle %u mode %u scan 0x%08X\n",
address,
command,
customer,
(unsigned int)toggle,
(unsigned int)mode,
scancode);
wbcir_keydown(data, scancode, toggle);
}
static void
wbcir_parse_rc5(struct device *dev, struct wbcir_data *data)
{
/*
* Bits are manchester coded as follows:
* cell1 + cell0 = logic "0"
* cell0 + cell1 = logic "1"
* (i.e. the reverse of RC6)
*
* Start bit 1 - "1" - discarded
* Start bit 2 - Must be inverted to get command bit 6
* Toggle bit
* Address Bit 4 - 0
* Command Bit 5 - 0
*/
u8 toggle;
u8 address;
u8 command;
u32 scancode;
/* Start bit 1 */
if (!get_bits(data, 1)) {
dev_dbg(dev, "RC5 - Invalid start bit\n");
return;
}
/* Start bit 2 */
if (!wbcir_get_rc5bits(data, 1))
command = 0x40;
else
command = 0x00;
toggle = wbcir_get_rc5bits(data, 1);
address = wbcir_get_rc5bits(data, 5);
command |= wbcir_get_rc5bits(data, 6);
scancode = address << 7 | command;
/* Last sanity check */
if (data->irdata_error) {
dev_dbg(dev, "RC5 - Invalid message\n");
return;
}
dev_dbg(dev, "IR-RC5 ad %u cm %u t %u s %u\n",
(unsigned int)address,
(unsigned int)command,
(unsigned int)toggle,
(unsigned int)scancode);
wbcir_keydown(data, scancode, toggle);
}
static void
wbcir_parse_nec(struct device *dev, struct wbcir_data *data)
{
/*
* Each bit represents 560 us.
*
* Leader - 9 ms burst
* Gap - 4.5 ms silence
* Address1 bit 0 - 7 - Address 1
* Address2 bit 0 - 7 - Address 2
* Command1 bit 0 - 7 - Command 1
* Command2 bit 0 - 7 - Command 2
*
* Note the bit order!
*
* With the old NEC protocol, Address2 was the inverse of Address1
* and Command2 was the inverse of Command1 and were used as
* an error check.
*
* With NEC extended, Address1 is the LSB of the Address and
* Address2 is the MSB, Command parsing remains unchanged.
*
* A repeat message is coded as:
* Leader - 9 ms burst
* Gap - 2.25 ms silence
* Repeat - 560 us active
*/
u8 address1;
u8 address2;
u8 command1;
u8 command2;
u16 address;
u32 scancode;
/* Leader mark */
while (get_bits(data, 1) && !data->irdata_error)
/* Do nothing */;
/* Leader space */
if (get_bits(data, 4)) {
dev_dbg(dev, "NEC - Invalid leader space\n");
return;
}
/* Repeat? */
if (get_bits(data, 1)) {
if (!data->keypressed) {
dev_dbg(dev, "NEC - Stray repeat message\n");
return;
}
dev_dbg(dev, "IR-NEC repeat s %u\n",
(unsigned int)data->last_scancode);
wbcir_keydown(data, data->last_scancode, data->last_toggle);
return;
}
/* Remaining leader space */
if (get_bits(data, 3)) {
dev_dbg(dev, "NEC - Invalid leader space\n");
return;
}
address1 = bitrev8(get_bits(data, 8));
address2 = bitrev8(get_bits(data, 8));
command1 = bitrev8(get_bits(data, 8));
command2 = bitrev8(get_bits(data, 8));
/* Sanity check */
if (data->irdata_error) {
dev_dbg(dev, "NEC - Invalid message\n");
return;
}
/* Check command validity */
if (command1 != ~command2) {
dev_dbg(dev, "NEC - Command bytes mismatch\n");
return;
}
/* Check for extended NEC protocol */
address = address1;
if (address1 != ~address2)
address |= address2 << 8;
scancode = address << 8 | command1;
dev_dbg(dev, "IR-NEC ad %u cm %u s %u\n",
(unsigned int)address,
(unsigned int)command1,
(unsigned int)scancode);
wbcir_keydown(data, scancode, !data->last_toggle);
}
/*****************************************************************************
*
* INTERRUPT FUNCTIONS
......@@ -941,75 +284,88 @@ wbcir_irq_handler(int irqno, void *cookie)
{
struct pnp_dev *device = cookie;
struct wbcir_data *data = pnp_get_drvdata(device);
struct device *dev = &device->dev;
u8 status;
unsigned long flags;
u8 irdata[8];
u8 disable = true;
u8 status;
int i;
unsigned int hw;
spin_lock_irqsave(&wbcir_lock, flags);
spin_lock_irqsave(&data->spinlock, flags);
wbcir_select_bank(data, WBCIR_BANK_0);
status = inb(data->sbase + WBCIR_REG_SP3_EIR);
if (!(status & (WBCIR_IRQ_RX | WBCIR_IRQ_ERR))) {
spin_unlock_irqrestore(&wbcir_lock, flags);
spin_unlock_irqrestore(&data->spinlock, flags);
return IRQ_NONE;
}
if (status & WBCIR_IRQ_ERR)
data->irdata_error = 1;
/* Check for e.g. buffer overflow */
if (status & WBCIR_IRQ_ERR) {
data->irdata_error = true;
ir_raw_event_reset(data->dev);
}
if (!(status & WBCIR_IRQ_RX))
goto out;
if (!data->irdata_active) {
data->irdata_active = true;
led_trigger_event(data->rxtrigger, LED_FULL);
}
/* Since RXHDLEV is set, at least 8 bytes are in the FIFO */
insb(data->sbase + WBCIR_REG_SP3_RXDATA, &irdata[0], 8);
for (i = 0; i < sizeof(irdata); i++) {
hw = hweight8(irdata[i]);
if (hw > 4)
add_irdata_bit(data, 0);
else
add_irdata_bit(data, 1);
for (i = 0; i < 8; i++) {
u8 pulse;
u32 duration;
if (hw == 8)
data->idle_count++;
else
data->idle_count = 0;
if (irdata[i] != 0xFF && irdata[i] != 0x00)
disable = false;
if (data->irdata_error)
continue;
pulse = irdata[i] & 0x80 ? false : true;
duration = (irdata[i] & 0x7F) * 10000; /* ns */
if (data->ev.pulse != pulse) {
if (data->ev.duration != 0) {
ir_raw_event_store(data->dev, &data->ev);
data->ev.duration = 0;
}
data->ev.pulse = pulse;
}
data->ev.duration += duration;
}
if (data->idle_count > WBCIR_MAX_IDLE_BYTES) {
/* Set RXINACTIVE... */
if (disable) {
if (data->ev.duration != 0 && !data->irdata_error) {
ir_raw_event_store(data->dev, &data->ev);
data->ev.duration = 0;
}
/* Set RXINACTIVE */
outb(WBCIR_RX_DISABLE, data->sbase + WBCIR_REG_SP3_ASCR);
/* ...and drain the FIFO */
/* Drain the FIFO */
while (inb(data->sbase + WBCIR_REG_SP3_LSR) & WBCIR_RX_AVAIL)
inb(data->sbase + WBCIR_REG_SP3_RXDATA);
dev_dbg(dev, "IRDATA:\n");
for (i = 0; i < data->irdata_count; i += BITS_PER_LONG)
dev_dbg(dev, "0x%08lX\n", data->irdata[i/BITS_PER_LONG]);
switch (protocol) {
case IR_PROTOCOL_RC5:
wbcir_parse_rc5(dev, data);
break;
case IR_PROTOCOL_RC6:
wbcir_parse_rc6(dev, data);
break;
case IR_PROTOCOL_NEC:
wbcir_parse_nec(dev, data);
break;
}
wbcir_reset_irdata(data);
ir_raw_event_reset(data->dev);
data->irdata_error = false;
data->irdata_active = false;
led_trigger_event(data->rxtrigger, LED_OFF);
}
ir_raw_event_handle(data->dev);
out:
spin_unlock_irqrestore(&wbcir_lock, flags);
spin_unlock_irqrestore(&data->spinlock, flags);
return IRQ_HANDLED;
}
......@@ -1199,6 +555,10 @@ wbcir_shutdown(struct pnp_dev *device)
wbcir_select_bank(data, WBCIR_BANK_0);
outb(WBCIR_IRQ_NONE, data->sbase + WBCIR_REG_SP3_IER);
/* Disable LED */
data->irdata_active = false;
led_trigger_event(data->rxtrigger, LED_OFF);
/*
* ACPI will set the HW disable bit for SP3 which means that the
* output signals are left in an undefined state which may cause
......@@ -1323,8 +683,15 @@ wbcir_init_hw(struct wbcir_data *data)
/* Clear AUX status bits */
outb(0xE0, data->sbase + WBCIR_REG_SP3_ASCR);
/* Clear IR decoding state */
data->irdata_active = false;
led_trigger_event(data->rxtrigger, LED_OFF);
data->irdata_error = false;
data->ev.duration = 0;
ir_raw_event_reset(data->dev);
ir_raw_event_handle(data->dev);
/* Enable interrupts */
wbcir_reset_irdata(data);
outb(WBCIR_IRQ_RX | WBCIR_IRQ_ERR, data->sbase + WBCIR_REG_SP3_IER);
}
......@@ -1361,6 +728,7 @@ wbcir_probe(struct pnp_dev *device, const struct pnp_device_id *dev_id)
pnp_set_drvdata(device, data);
spin_lock_init(&data->spinlock);
data->ebase = pnp_port_start(device, 0);
data->wbase = pnp_port_start(device, 1);
data->sbase = pnp_port_start(device, 2);
......@@ -1426,43 +794,25 @@ wbcir_probe(struct pnp_dev *device, const struct pnp_device_id *dev_id)
if (err)
goto exit_unregister_rxtrigger;
data->input_dev = input_allocate_device();
if (!data->input_dev) {
data->dev = rc_allocate_device();
if (!data->dev) {
err = -ENOMEM;
goto exit_unregister_led;
}
data->input_dev->evbit[0] = BIT(EV_KEY);
data->input_dev->name = WBCIR_NAME;
data->input_dev->phys = "wbcir/cir0";
data->input_dev->id.bustype = BUS_HOST;
data->input_dev->id.vendor = PCI_VENDOR_ID_WINBOND;
data->input_dev->id.product = WBCIR_ID_FAMILY;
data->input_dev->id.version = WBCIR_ID_CHIP;
data->input_dev->getkeycode = wbcir_getkeycode;
data->input_dev->setkeycode = wbcir_setkeycode;
input_set_capability(data->input_dev, EV_MSC, MSC_SCAN);
input_set_drvdata(data->input_dev, data);
err = input_register_device(data->input_dev);
data->dev->driver_name = WBCIR_NAME;
data->dev->input_name = WBCIR_NAME;
data->dev->input_phys = "wbcir/cir0";
data->dev->input_id.bustype = BUS_HOST;
data->dev->input_id.vendor = PCI_VENDOR_ID_WINBOND;
data->dev->input_id.product = WBCIR_ID_FAMILY;
data->dev->input_id.version = WBCIR_ID_CHIP;
data->dev->priv = data;
data->dev->dev.parent = &device->dev;
err = rc_register_device(data->dev);
if (err)
goto exit_free_input;
data->last_scancode = INVALID_SCANCODE;
INIT_LIST_HEAD(&data->keytable);
setup_timer(&data->timer_keyup, wbcir_keyup, (unsigned long)data);
/* Load default keymaps */
if (protocol == IR_PROTOCOL_RC6) {
int i;
for (i = 0; i < ARRAY_SIZE(rc6_def_keymap); i++) {
err = wbcir_setkeycode(data->input_dev,
(int)rc6_def_keymap[i].scancode,
(int)rc6_def_keymap[i].keycode);
if (err)
goto exit_unregister_keys;
}
}
goto exit_free_rc;
device_init_wakeup(&device->dev, 1);
......@@ -1470,21 +820,8 @@ wbcir_probe(struct pnp_dev *device, const struct pnp_device_id *dev_id)
return 0;
exit_unregister_keys:
if (!list_empty(&data->keytable)) {
struct wbcir_keyentry *key;
struct wbcir_keyentry *keytmp;
list_for_each_entry_safe(key, keytmp, &data->keytable, list) {
list_del(&key->list);
kfree(key);
}
}
input_unregister_device(data->input_dev);
/* Can't call input_free_device on an unregistered device */
data->input_dev = NULL;
exit_free_input:
input_free_device(data->input_dev);
exit_free_rc:
rc_free_device(data->dev);
exit_unregister_led:
led_classdev_unregister(&data->led);
exit_unregister_rxtrigger:
......@@ -1510,15 +847,11 @@ static void __devexit
wbcir_remove(struct pnp_dev *device)
{
struct wbcir_data *data = pnp_get_drvdata(device);
struct wbcir_keyentry *key;
struct wbcir_keyentry *keytmp;
/* Disable interrupts */
wbcir_select_bank(data, WBCIR_BANK_0);
outb(WBCIR_IRQ_NONE, data->sbase + WBCIR_REG_SP3_IER);
del_timer_sync(&data->timer_keyup);
free_irq(data->irq, device);
/* Clear status bits NEC_REP, BUFF, MSG_END, MATCH */
......@@ -1530,8 +863,7 @@ wbcir_remove(struct pnp_dev *device)
/* Clear BUFF_EN, END_EN, MATCH_EN */
wbcir_set_bits(data->wbase + WBCIR_REG_WCEIR_EV_EN, 0x00, 0x07);
/* This will generate a keyup event if necessary */
input_unregister_device(data->input_dev);
rc_unregister_device(data->dev);
led_trigger_unregister_simple(data->rxtrigger);
led_trigger_unregister_simple(data->txtrigger);
......@@ -1544,11 +876,6 @@ wbcir_remove(struct pnp_dev *device)
release_region(data->ebase, EHFUNC_IOMEM_LEN);
release_region(data->sbase, SP_IOMEM_LEN);
list_for_each_entry_safe(key, keytmp, &data->keytable, list) {
list_del(&key->list);
kfree(key);
}
kfree(data);
pnp_set_drvdata(device, NULL);
......@@ -1581,8 +908,7 @@ wbcir_init(void)
case IR_PROTOCOL_RC6:
break;
default:
printk(KERN_ERR DRVNAME ": Invalid protocol argument\n");
return -EINVAL;
printk(KERN_ERR DRVNAME ": Invalid power-on protocol\n");
}
ret = pnp_register_driver(&wbcir_driver);
......@@ -1598,11 +924,9 @@ wbcir_exit(void)
pnp_unregister_driver(&wbcir_driver);
}
MODULE_AUTHOR("David Hrdeman <david@hardeman.nu>");
MODULE_DESCRIPTION("Winbond SuperI/O Consumer IR Driver");
MODULE_LICENSE("GPL");
module_init(wbcir_init);
module_exit(wbcir_exit);
MODULE_AUTHOR("David Hrdeman <david@hardeman.nu>");
MODULE_DESCRIPTION("Winbond SuperI/O Consumer IR Driver");
MODULE_LICENSE("GPL");
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