Commit 2aae415e authored by Andrew Morton's avatar Andrew Morton Committed by Linus Torvalds

[PATCH] v4l: add bttv IR input support.

From: Gerd Knorr <kraxel@bytesex.org>

This patch adds linux input layer based support for infrared remote
  controls.  It adds two new modules:

* ir-kbd-i2c supports i2c-based IR receivers.

* ir-kbd-gpio supports IR receivers connected to the bt878 gpio pins.

This patch depends on the ir-input patch and the bttv driver update.
parent 91eaefcf
...@@ -11,7 +11,7 @@ zr36067-objs := zoran_procfs.o zoran_device.o \ ...@@ -11,7 +11,7 @@ zr36067-objs := zoran_procfs.o zoran_device.o \
obj-$(CONFIG_VIDEO_DEV) += videodev.o v4l2-common.o v4l1-compat.o obj-$(CONFIG_VIDEO_DEV) += videodev.o v4l2-common.o v4l1-compat.o
obj-$(CONFIG_VIDEO_BT848) += bttv.o msp3400.o tvaudio.o \ obj-$(CONFIG_VIDEO_BT848) += bttv.o msp3400.o tvaudio.o \
tda7432.o tda9875.o tda7432.o tda9875.o ir-kbd-i2c.o ir-kbd-gpio.o
obj-$(CONFIG_SOUND_TVMIXER) += tvmixer.o obj-$(CONFIG_SOUND_TVMIXER) += tvmixer.o
obj-$(CONFIG_VIDEO_ZR36120) += zoran.o obj-$(CONFIG_VIDEO_ZR36120) += zoran.o
......
/*
* Copyright (c) 2003 Gerd Knorr
* Copyright (c) 2003 Pavel Machek
*
* 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
*/
#include <linux/module.h>
#include <linux/init.h>
#include <linux/input.h>
#include <linux/delay.h>
#include <linux/interrupt.h>
#include <linux/input.h>
#include <linux/pci.h>
#include <media/ir-common.h>
#include "bttv.h"
/* ---------------------------------------------------------------------- */
static IR_KEYTAB_TYPE ir_codes_avermedia[IR_KEYTAB_SIZE] = {
[ 17 ] = KEY_KP0,
[ 20 ] = KEY_KP1,
[ 12 ] = KEY_KP2,
[ 28 ] = KEY_KP3,
[ 18 ] = KEY_KP4,
[ 10 ] = KEY_KP5,
[ 26 ] = KEY_KP6,
[ 22 ] = KEY_KP7,
[ 14 ] = KEY_KP8,
[ 30 ] = KEY_KP9,
[ 24 ] = KEY_EJECTCD, // Unmarked on my controller
[ 0 ] = KEY_POWER,
[ 9 ] = BTN_LEFT, // DISPLAY/L
[ 25 ] = BTN_RIGHT, // LOOP/R
[ 5 ] = KEY_MUTE,
[ 19 ] = KEY_RECORD,
[ 11 ] = KEY_PAUSE,
[ 27 ] = KEY_STOP,
[ 15 ] = KEY_VOLUMEDOWN,
[ 31 ] = KEY_VOLUMEUP,
[ 16 ] = KEY_TUNER, // TV/FM
[ 8 ] = KEY_CD,
[ 4 ] = KEY_VIDEO,
[ 2 ] = KEY_AUDIO,
[ 6 ] = KEY_ZOOM, // full screen
[ 1 ] = KEY_INFO, // preview
[ 21 ] = KEY_SEARCH, // autoscan
[ 13 ] = KEY_STOP, // freeze
[ 29 ] = KEY_RECORD, // capture
[ 3 ] = KEY_PLAY, // unmarked
[ 24 ] = KEY_RED, // unmarked
[ 7 ] = KEY_GREEN, // unmarked
#if 0
[ 16 ] = KEY_YELLOW, // unmarked
[ 8 ] = KEY_CHANNELDOWN,
[ 24 ] = KEY_CHANNELUP,
[ 0 ] = KEY_BLUE, // unmarked
#endif
};
static IR_KEYTAB_TYPE winfast_codes[IR_KEYTAB_SIZE] = {
[ 5 ] = KEY_KP1,
[ 6 ] = KEY_KP2,
[ 7 ] = KEY_KP3,
[ 9 ] = KEY_KP4,
[ 10 ] = KEY_KP5,
[ 11 ] = KEY_KP6,
[ 13 ] = KEY_KP7,
[ 14 ] = KEY_KP8,
[ 15 ] = KEY_KP9,
[ 18 ] = KEY_KP0,
[ 0 ] = KEY_POWER,
// [ 27 ] = MTS button
[ 2 ] = KEY_TUNER, // TV/FM
[ 30 ] = KEY_VIDEO,
// [ 22 ] = display button
[ 4 ] = KEY_VOLUMEUP,
[ 8 ] = KEY_VOLUMEDOWN,
[ 12 ] = KEY_CHANNELUP,
[ 16 ] = KEY_CHANNELDOWN,
[ 3 ] = KEY_ZOOM, // fullscreen
[ 31 ] = KEY_SUBTITLE, // closed caption/teletext
[ 32 ] = KEY_SLEEP,
// [ 41 ] = boss key
[ 20 ] = KEY_MUTE,
[ 43 ] = KEY_RED,
[ 44 ] = KEY_GREEN,
[ 45 ] = KEY_YELLOW,
[ 46 ] = KEY_BLUE,
[ 24 ] = KEY_KPPLUS, //fine tune +
[ 25 ] = KEY_KPMINUS, //fine tune -
// [ 42 ] = picture in picture
[ 33 ] = KEY_KPDOT,
[ 19 ] = KEY_KPENTER,
// [ 17 ] = recall
[ 34 ] = KEY_BACK,
[ 35 ] = KEY_PLAYPAUSE,
[ 36 ] = KEY_NEXT,
// [ 37 ] = time shifting
[ 38 ] = KEY_STOP,
[ 39 ] = KEY_RECORD
// [ 40 ] = snapshot
};
static IR_KEYTAB_TYPE ir_codes_pixelview[IR_KEYTAB_SIZE] = {
[ 2 ] = KEY_KP0,
[ 1 ] = KEY_KP1,
[ 11 ] = KEY_KP2,
[ 27 ] = KEY_KP3,
[ 5 ] = KEY_KP4,
[ 9 ] = KEY_KP5,
[ 21 ] = KEY_KP6,
[ 6 ] = KEY_KP7,
[ 10 ] = KEY_KP8,
[ 18 ] = KEY_KP9,
[ 3 ] = KEY_TUNER, // TV/FM
[ 7 ] = KEY_SEARCH, // scan
[ 28 ] = KEY_ZOOM, // full screen
[ 30 ] = KEY_POWER,
[ 23 ] = KEY_VOLUMEDOWN,
[ 31 ] = KEY_VOLUMEUP,
[ 20 ] = KEY_CHANNELDOWN,
[ 22 ] = KEY_CHANNELUP,
[ 24 ] = KEY_MUTE,
[ 0 ] = KEY_LIST, // source
[ 19 ] = KEY_INFO, // loop
[ 16 ] = KEY_LAST, // +100
[ 13 ] = KEY_CLEAR, // reset
[ 12 ] = BTN_RIGHT, // fun++
[ 4 ] = BTN_LEFT, // fun--
[ 14 ] = KEY_GOTO, // function
[ 15 ] = KEY_STOP, // freeze
};
/* ---------------------------------------------------------------------- */
struct IR {
struct bttv_sub_device *sub;
struct input_dev input;
struct ir_input_state ir;
char name[32];
char phys[32];
u32 mask_keycode;
u32 mask_keydown;
u32 mask_keyup;
int polling;
u32 last_gpio;
struct work_struct work;
struct timer_list timer;
};
static int debug = 0; /* debug level (0,1,2) */
MODULE_PARM(debug,"i");
#define DEVNAME "ir-kbd-gpio"
#define dprintk(fmt, arg...) if (debug) \
printk(KERN_DEBUG DEVNAME ": " fmt , ## arg)
static void ir_irq(struct bttv_sub_device *sub);
static int ir_probe(struct device *dev);
static int ir_remove(struct device *dev);
static struct bttv_sub_driver driver = {
.drv = {
.name = DEVNAME,
.probe = ir_probe,
.remove = ir_remove,
},
.gpio_irq = ir_irq,
};
/* ---------------------------------------------------------------------- */
static void ir_handle_key(struct IR *ir)
{
u32 gpio,data;
/* read gpio value */
gpio = bttv_gpio_read(ir->sub->core);
if (ir->polling) {
if (ir->last_gpio == gpio)
return;
ir->last_gpio = gpio;
}
/* extract data */
data = ir_extract_bits(gpio, ir->mask_keycode);
dprintk(DEVNAME ": irq gpio=0x%x code=%d | %s%s%s\n",
gpio, data,
ir->polling ? "poll" : "irq",
(gpio & ir->mask_keydown) ? " down" : "",
(gpio & ir->mask_keyup) ? " up" : "");
if (ir->mask_keydown) {
/* bit set on keydown */
if (gpio & ir->mask_keydown) {
ir_input_keydown(&ir->input,&ir->ir,data,data);
} else {
ir_input_nokey(&ir->input,&ir->ir);
}
} else if (ir->mask_keyup) {
/* bit cleared on keydown */
if (0 == (gpio & ir->mask_keyup)) {
ir_input_keydown(&ir->input,&ir->ir,data,data);
} else {
ir_input_nokey(&ir->input,&ir->ir);
}
} else {
/* can't disturgissh keydown/up :-/ */
ir_input_keydown(&ir->input,&ir->ir,data,data);
ir_input_nokey(&ir->input,&ir->ir);
}
}
static void ir_irq(struct bttv_sub_device *sub)
{
struct IR *ir = dev_get_drvdata(&sub->dev);
if (!ir->polling)
ir_handle_key(ir);
}
static void ir_timer(unsigned long data)
{
struct IR *ir = (struct IR*)data;
schedule_work(&ir->work);
}
static void ir_work(void *data)
{
struct IR *ir = data;
unsigned long timeout;
ir_handle_key(ir);
timeout = jiffies + (ir->polling * HZ / 1000);
mod_timer(&ir->timer, timeout);
}
/* ---------------------------------------------------------------------- */
static int ir_probe(struct device *dev)
{
struct bttv_sub_device *sub = to_bttv_sub_dev(dev);
struct IR *ir;
IR_KEYTAB_TYPE *ir_codes = NULL;
int ir_type = IR_TYPE_OTHER;
ir = kmalloc(sizeof(*ir),GFP_KERNEL);
if (NULL == ir)
return -ENOMEM;
memset(ir,0,sizeof(*ir));
/* detect & configure */
switch (sub->core->type) {
case BTTV_AVERMEDIA:
case BTTV_AVPHONE98:
ir_codes = ir_codes_avermedia;
ir->mask_keycode = 0xf80000;
ir->mask_keydown = 0x010000;
break;
case BTTV_WINFAST2000:
ir_codes = winfast_codes;
ir->mask_keycode = 0x8f8;
break;
case BTTV_PV_BT878P_9B:
case BTTV_PV_BT878P_PLUS:
ir_codes = ir_codes_pixelview;
ir->mask_keycode = 0x001f00;
ir->mask_keyup = 0x008000;
ir->polling = 50; // ms
break;
}
if (NULL == ir_codes) {
kfree(ir);
return -ENODEV;
}
/* init hardware-specific stuff */
bttv_gpio_inout(sub->core, ir->mask_keycode | ir->mask_keydown, 0);
ir->sub = sub;
/* init input device */
snprintf(ir->name, sizeof(ir->name), "bttv IR (card=%d)",
sub->core->type);
snprintf(ir->phys, sizeof(ir->phys), "pci-%s/ir0",
pci_name(sub->core->pci));
ir_input_init(&ir->input, &ir->ir, ir_type, ir_codes);
ir->input.name = ir->name;
ir->input.phys = ir->phys;
ir->input.id.bustype = BUS_PCI;
ir->input.id.version = 1;
if (sub->core->pci->subsystem_vendor) {
ir->input.id.vendor = sub->core->pci->subsystem_vendor;
ir->input.id.product = sub->core->pci->subsystem_device;
} else {
ir->input.id.vendor = sub->core->pci->vendor;
ir->input.id.product = sub->core->pci->device;
}
if (ir->polling) {
INIT_WORK(&ir->work, ir_work, ir);
init_timer(&ir->timer);
ir->timer.function = ir_timer;
ir->timer.data = (unsigned long)ir;
schedule_work(&ir->work);
}
/* all done */
dev_set_drvdata(dev,ir);
input_register_device(&ir->input);
printk(DEVNAME ": %s detected at %s\n",ir->input.name,ir->input.phys);
return 0;
}
static int ir_remove(struct device *dev)
{
struct IR *ir = dev_get_drvdata(dev);
if (ir->polling) {
del_timer(&ir->timer);
flush_scheduled_work();
}
input_unregister_device(&ir->input);
kfree(ir);
return 0;
}
/* ---------------------------------------------------------------------- */
MODULE_AUTHOR("Gerd Knorr, Pavel Machek");
MODULE_DESCRIPTION("input driver for bt8x8 gpio IR remote controls");
MODULE_LICENSE("GPL");
static int ir_init(void)
{
return bttv_sub_register(&driver, "remote");
}
static void ir_fini(void)
{
bttv_sub_unregister(&driver);
}
module_init(ir_init);
module_exit(ir_fini);
/*
* Local variables:
* c-basic-offset: 8
* End:
*/
/*
* keyboard input driver for i2c IR remote controls
*
* Copyright (c) 2000-2003 Gerd Knorr <kraxel@bytesex.org>
* modified for PixelView (BT878P+W/FM) by
* Michal Kochanowicz <mkochano@pld.org.pl>
* Christoph Bartelmus <lirc@bartelmus.de>
* modified for KNC ONE TV Station/Anubis Typhoon TView Tuner by
* Ulrich Mueller <ulrich.mueller42@web.de>
*
* 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
*
*/
#include <linux/module.h>
#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/sched.h>
#include <linux/string.h>
#include <linux/timer.h>
#include <linux/delay.h>
#include <linux/errno.h>
#include <linux/slab.h>
#include <linux/i2c.h>
#include <linux/workqueue.h>
#include <asm/semaphore.h>
#include <media/ir-common.h>
struct IR;
struct IR {
struct i2c_client c;
struct input_dev input;
struct ir_input_state ir;
struct work_struct work;
struct timer_list timer;
char phys[32];
int (*get_key)(struct IR*, u32*, u32*);
};
/* ----------------------------------------------------------------------- */
/* insmod parameters */
static int debug = 0; /* debug level (0,1,2) */
MODULE_PARM(debug,"i");
#define DEVNAME "ir-kbd-i2c"
#define dprintk(level, fmt, arg...) if (debug >= level) \
printk(KERN_DEBUG DEVNAME ": " fmt , ## arg)
/* ----------------------------------------------------------------------- */
static inline int reverse(int data, int bits)
{
int i,c;
for (c=0,i=0; i<bits; i++) {
c |= (((data & (1<<i)) ? 1:0)) << (bits-1-i);
}
return c;
}
static int get_key_haup(struct IR *ir, u32 *ir_key, u32 *ir_raw)
{
unsigned char buf[3];
int start, toggle, dev, code;
/* poll IR chip */
if (3 != i2c_master_recv(&ir->c,buf,3))
return -EIO;
/* split rc5 data block ... */
start = (buf[0] >> 6) & 3;
toggle = (buf[0] >> 5) & 1;
dev = buf[0] & 0x1f;
code = (buf[1] >> 2) & 0x3f;
if (3 != start)
/* no key pressed */
return 0;
dprintk(1,"ir hauppauge (rc5): s%d t%d dev=%d code=%d\n",
start, toggle, dev, code);
/* return key */
*ir_key = code;
*ir_raw = (start << 12) | (toggle << 11) | (dev << 6) | code;
return 1;
}
static int get_key_pixelview(struct IR *ir, u32 *ir_key, u32 *ir_raw)
{
unsigned char b;
/* poll IR chip */
if (1 != i2c_master_recv(&ir->c,&b,1)) {
dprintk(1,"read error\n");
return -EIO;
}
*ir_key = b;
*ir_raw = b;
return 1;
}
static int get_key_pv951(struct IR *ir, u32 *ir_key, u32 *ir_raw)
{
unsigned char b;
/* poll IR chip */
if (1 != i2c_master_recv(&ir->c,&b,1)) {
dprintk(1,"read error\n");
return -EIO;
}
/* ignore 0xaa */
if (b==0xaa)
return 0;
dprintk(2,"key %02x\n", b);
*ir_key = b;
*ir_raw = b;
return 1;
}
static int get_key_knc1(struct IR *ir, u32 *ir_key, u32 *ir_raw)
{
unsigned char b;
/* poll IR chip */
if (1 != i2c_master_recv(&ir->c,&b,1)) {
dprintk(1,"read error\n");
return -EIO;
}
/* it seems that 0xFE indicates that a button is still hold
down, while 0xFF indicates that no button is hold
down. 0xFE sequences are sometimes interrupted by 0xFF */
dprintk(2,"key %02x\n", b);
if (b == 0xFF)
return 0;
if (b == 0xFE)
/* keep old data */
return 1;
*ir_key = b;
*ir_raw = b;
return 1;
}
/* ----------------------------------------------------------------------- */
static void ir_key_poll(struct IR *ir)
{
u32 ir_key, ir_raw;
int rc;
dprintk(2,"ir_poll_key\n");
rc = ir->get_key(ir, &ir_key, &ir_raw);
if (rc < 0) {
dprintk(2,"error\n");
return;
}
if (0 == rc) {
ir_input_nokey(&ir->input,&ir->ir);
} else {
ir_input_keydown(&ir->input,&ir->ir, ir_key, ir_raw);
}
}
static void ir_timer(unsigned long data)
{
struct IR *ir = (struct IR*)data;
schedule_work(&ir->work);
}
static void ir_work(void *data)
{
struct IR *ir = data;
ir_key_poll(ir);
mod_timer(&ir->timer, jiffies+HZ/10);
}
/* ----------------------------------------------------------------------- */
static int ir_attach(struct i2c_adapter *adap, int addr,
unsigned short flags, int kind);
static int ir_detach(struct i2c_client *client);
static int ir_probe(struct i2c_adapter *adap);
static struct i2c_driver driver = {
.name = "ir remote kbd driver",
.id = I2C_DRIVERID_EXP3, /* FIXME */
.flags = I2C_DF_NOTIFY,
.attach_adapter = ir_probe,
.detach_client = ir_detach,
};
static struct i2c_client client_template =
{
I2C_DEVNAME("unset"),
.driver = &driver
};
static int ir_attach(struct i2c_adapter *adap, int addr,
unsigned short flags, int kind)
{
IR_KEYTAB_TYPE *ir_codes = NULL;
char *name;
int ir_type;
struct IR *ir;
if (NULL == (ir = kmalloc(sizeof(struct IR),GFP_KERNEL)))
return -ENOMEM;
memset(ir,0,sizeof(*ir));
ir->c = client_template;
i2c_set_clientdata(&ir->c, ir);
ir->c.adapter = adap;
ir->c.addr = addr;
switch(addr) {
case 0x64:
name = "Pixelview";
ir->get_key = get_key_pixelview;
ir_type = IR_TYPE_OTHER;
ir_codes = ir_codes_empty;
break;
case 0x4b:
name = "PV951";
ir->get_key = get_key_pv951;
ir_type = IR_TYPE_OTHER;
ir_codes = ir_codes_empty;
break;
case 0x18:
case 0x1a:
name = "Hauppauge";
ir->get_key = get_key_haup;
ir_type = IR_TYPE_RC5;
ir_codes = ir_codes_rc5_tv;
break;
case 0x30:
name = "KNC One";
ir->get_key = get_key_knc1;
ir_type = IR_TYPE_OTHER;
ir_codes = ir_codes_empty;
break;
default:
/* shouldn't happen */
printk(DEVNAME ": Huh? unknown i2c address (0x%02x)?\n",addr);
kfree(ir);
return -1;
}
/* register i2c device */
i2c_attach_client(&ir->c);
snprintf(ir->c.name, sizeof(ir->c.name), "i2c IR (%s)", name);
snprintf(ir->phys, sizeof(ir->phys), "%s/%s/ir0",
ir->c.adapter->dev.bus_id,
ir->c.dev.bus_id);
/* init + register input device */
ir_input_init(&ir->input,&ir->ir,ir_type,ir_codes);
ir->input.id.bustype = BUS_I2C;
ir->input.name = ir->c.name;
ir->input.phys = ir->phys;
input_register_device(&ir->input);
printk(DEVNAME ": %s detected at %s\n",ir->input.name,ir->input.phys);
/* start polling via eventd */
INIT_WORK(&ir->work, ir_work, ir);
init_timer(&ir->timer);
ir->timer.function = ir_timer;
ir->timer.data = (unsigned long)ir;
schedule_work(&ir->work);
return 0;
}
static int ir_detach(struct i2c_client *client)
{
struct IR *ir = i2c_get_clientdata(client);
/* kill outstanding polls */
del_timer(&ir->timer);
flush_scheduled_work();
/* unregister devices */
input_unregister_device(&ir->input);
i2c_detach_client(&ir->c);
/* free memory */
kfree(ir);
return 0;
}
static int ir_probe(struct i2c_adapter *adap)
{
/* The external IR receiver is at i2c address 0x34 (0x35 for
reads). Future Hauppauge cards will have an internal
receiver at 0x30 (0x31 for reads). In theory, both can be
fitted, and Hauppauge suggest an external overrides an
internal.
That's why we probe 0x1a (~0x34) first. CB
*/
static const int probe[] = { 0x1a, 0x18, 0x4b, 0x64, 0x30, -1};
struct i2c_client c; char buf; int i,rc;
if (adap->id == (I2C_ALGO_BIT | I2C_HW_B_BT848)) {
memset(&c,0,sizeof(c));
c.adapter = adap;
for (i = 0; -1 != probe[i]; i++) {
c.addr = probe[i];
rc = i2c_master_recv(&c,&buf,1);
dprintk(1,"probe 0x%02x @ %s: %s\n",
probe[i], adap->name,
(1 == rc) ? "yes" : "no");
if (1 == rc) {
ir_attach(adap,probe[i],0,0);
break;
}
}
}
return 0;
}
/* ----------------------------------------------------------------------- */
MODULE_AUTHOR("Gerd Knorr, Michal Kochanowicz, Christoph Bartelmus, Ulrich Mueller");
MODULE_DESCRIPTION("input driver for i2c IR remote controls");
MODULE_LICENSE("GPL");
static int ir_init(void)
{
i2c_add_driver(&driver);
return 0;
}
static void ir_fini(void)
{
i2c_del_driver(&driver);
}
module_init(ir_init);
module_exit(ir_fini);
/*
* Overrides for Emacs so that we follow Linus's tabbing style.
* ---------------------------------------------------------------------------
* Local variables:
* c-basic-offset: 8
* End:
*/
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