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linux/drivers/media/video/saa7134/saa7134-input.c

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/*
*
* handle saa7134 IR remotes via linux kernel input layer.
*
* 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/delay.h>
#include <linux/interrupt.h>
#include <linux/input.h>
#include <linux/slab.h>
#include "saa7134-reg.h"
#include "saa7134.h"
#define MODULE_NAME "saa7134"
static unsigned int disable_ir;
module_param(disable_ir, int, 0444);
MODULE_PARM_DESC(disable_ir,"disable infrared remote support");
static unsigned int ir_debug;
module_param(ir_debug, int, 0644);
MODULE_PARM_DESC(ir_debug,"enable debug messages [IR]");
static int pinnacle_remote;
module_param(pinnacle_remote, int, 0644); /* Choose Pinnacle PCTV remote */
MODULE_PARM_DESC(pinnacle_remote, "Specify Pinnacle PCTV remote: 0=coloured, 1=grey (defaults to 0)");
static int ir_rc5_remote_gap = 885;
module_param(ir_rc5_remote_gap, int, 0644);
static int ir_rc5_key_timeout = 115;
module_param(ir_rc5_key_timeout, int, 0644);
static int repeat_delay = 500;
module_param(repeat_delay, int, 0644);
MODULE_PARM_DESC(repeat_delay, "delay before key repeat started");
static int repeat_period = 33;
module_param(repeat_period, int, 0644);
MODULE_PARM_DESC(repeat_period, "repeat period between "
"keypresses when key is down");
static unsigned int disable_other_ir;
module_param(disable_other_ir, int, 0644);
MODULE_PARM_DESC(disable_other_ir, "disable full codes of "
"alternative remotes from other manufacturers");
#define dprintk(fmt, arg...) if (ir_debug) \
printk(KERN_DEBUG "%s/ir: " fmt, dev->name , ## arg)
#define i2cdprintk(fmt, arg...) if (ir_debug) \
printk(KERN_DEBUG "%s/ir: " fmt, ir->name , ## arg)
/* Helper functions for RC5 and NEC decoding at GPIO16 or GPIO18 */
static int saa7134_rc5_irq(struct saa7134_dev *dev);
static int saa7134_nec_irq(struct saa7134_dev *dev);
static int saa7134_raw_decode_irq(struct saa7134_dev *dev);
static void nec_task(unsigned long data);
static void saa7134_nec_timer(unsigned long data);
/* -------------------- GPIO generic keycode builder -------------------- */
static int build_key(struct saa7134_dev *dev)
{
struct card_ir *ir = dev->remote;
u32 gpio, data;
/* here comes the additional handshake steps for some cards */
switch (dev->board) {
case SAA7134_BOARD_GOTVIEW_7135:
saa_setb(SAA7134_GPIO_GPSTATUS1, 0x80);
saa_clearb(SAA7134_GPIO_GPSTATUS1, 0x80);
break;
}
/* rising SAA7134_GPIO_GPRESCAN reads the status */
saa_clearb(SAA7134_GPIO_GPMODE3,SAA7134_GPIO_GPRESCAN);
saa_setb(SAA7134_GPIO_GPMODE3,SAA7134_GPIO_GPRESCAN);
gpio = saa_readl(SAA7134_GPIO_GPSTATUS0 >> 2);
if (ir->polling) {
if (ir->last_gpio == gpio)
return 0;
ir->last_gpio = gpio;
}
data = ir_extract_bits(gpio, ir->mask_keycode);
dprintk("build_key gpio=0x%x mask=0x%x data=%d\n",
gpio, ir->mask_keycode, data);
switch (dev->board) {
case SAA7134_BOARD_KWORLD_PLUS_TV_ANALOG:
if (data == ir->mask_keycode)
ir_input_nokey(ir->dev, &ir->ir);
else
ir_input_keydown(ir->dev, &ir->ir, data);
return 0;
}
if (ir->polling) {
if ((ir->mask_keydown && (0 != (gpio & ir->mask_keydown))) ||
(ir->mask_keyup && (0 == (gpio & ir->mask_keyup)))) {
ir_input_keydown(ir->dev, &ir->ir, data);
} else {
ir_input_nokey(ir->dev, &ir->ir);
}
}
else { /* IRQ driven mode - handle key press and release in one go */
if ((ir->mask_keydown && (0 != (gpio & ir->mask_keydown))) ||
(ir->mask_keyup && (0 == (gpio & ir->mask_keyup)))) {
ir_input_keydown(ir->dev, &ir->ir, data);
ir_input_nokey(ir->dev, &ir->ir);
}
}
return 0;
}
/* --------------------- Chip specific I2C key builders ----------------- */
static int get_key_flydvb_trio(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw)
{
int gpio;
int attempt = 0;
unsigned char b;
/* We need this to access GPI Used by the saa_readl macro. */
struct saa7134_dev *dev = ir->c->adapter->algo_data;
if (dev == NULL) {
i2cdprintk("get_key_flydvb_trio: "
"ir->c->adapter->algo_data is NULL!\n");
return -EIO;
}
/* rising SAA7134_GPIGPRESCAN reads the status */
saa_clearb(SAA7134_GPIO_GPMODE3, SAA7134_GPIO_GPRESCAN);
saa_setb(SAA7134_GPIO_GPMODE3, SAA7134_GPIO_GPRESCAN);
gpio = saa_readl(SAA7134_GPIO_GPSTATUS0 >> 2);
if (0x40000 & ~gpio)
return 0; /* No button press */
/* No button press - only before first key pressed */
if (b == 0xFF)
return 0;
/* poll IR chip */
/* weak up the IR chip */
b = 0;
while (1 != i2c_master_send(ir->c, &b, 1)) {
if ((attempt++) < 10) {
/*
* wait a bit for next attempt -
* I don't know how make it better
*/
msleep(10);
continue;
}
i2cdprintk("send wake up byte to pic16C505 (IR chip)"
"failed %dx\n", attempt);
return -EIO;
}
if (1 != i2c_master_recv(ir->c, &b, 1)) {
i2cdprintk("read error\n");
return -EIO;
}
*ir_key = b;
*ir_raw = b;
return 1;
}
static int get_key_msi_tvanywhere_plus(struct IR_i2c *ir, u32 *ir_key,
u32 *ir_raw)
{
unsigned char b;
int gpio;
/* <dev> is needed to access GPIO. Used by the saa_readl macro. */
struct saa7134_dev *dev = ir->c->adapter->algo_data;
if (dev == NULL) {
i2cdprintk("get_key_msi_tvanywhere_plus: "
"ir->c->adapter->algo_data is NULL!\n");
return -EIO;
}
/* rising SAA7134_GPIO_GPRESCAN reads the status */
saa_clearb(SAA7134_GPIO_GPMODE3, SAA7134_GPIO_GPRESCAN);
saa_setb(SAA7134_GPIO_GPMODE3, SAA7134_GPIO_GPRESCAN);
gpio = saa_readl(SAA7134_GPIO_GPSTATUS0 >> 2);
/* GPIO&0x40 is pulsed low when a button is pressed. Don't do
I2C receive if gpio&0x40 is not low. */
if (gpio & 0x40)
return 0; /* No button press */
/* GPIO says there is a button press. Get it. */
if (1 != i2c_master_recv(ir->c, &b, 1)) {
i2cdprintk("read error\n");
return -EIO;
}
/* No button press */
if (b == 0xff)
return 0;
/* Button pressed */
dprintk("get_key_msi_tvanywhere_plus: Key = 0x%02X\n", b);
*ir_key = b;
*ir_raw = b;
return 1;
}
static int get_key_purpletv(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw)
{
unsigned char b;
/* poll IR chip */
if (1 != i2c_master_recv(ir->c, &b, 1)) {
i2cdprintk("read error\n");
return -EIO;
}
/* no button press */
if (b==0)
return 0;
/* repeating */
if (b & 0x80)
return 1;
*ir_key = b;
*ir_raw = b;
return 1;
}
static int get_key_hvr1110(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw)
{
unsigned char buf[5], cod4, code3, code4;
/* poll IR chip */
if (5 != i2c_master_recv(ir->c, buf, 5))
return -EIO;
cod4 = buf[4];
code4 = (cod4 >> 2);
code3 = buf[3];
if (code3 == 0)
/* no key pressed */
return 0;
/* return key */
*ir_key = code4;
*ir_raw = code4;
return 1;
}
static int get_key_beholdm6xx(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw)
{
unsigned char data[12];
u32 gpio;
struct saa7134_dev *dev = ir->c->adapter->algo_data;
/* rising SAA7134_GPIO_GPRESCAN reads the status */
saa_clearb(SAA7134_GPIO_GPMODE3, SAA7134_GPIO_GPRESCAN);
saa_setb(SAA7134_GPIO_GPMODE3, SAA7134_GPIO_GPRESCAN);
gpio = saa_readl(SAA7134_GPIO_GPSTATUS0 >> 2);
if (0x400000 & ~gpio)
return 0; /* No button press */
ir->c->addr = 0x5a >> 1;
if (12 != i2c_master_recv(ir->c, data, 12)) {
i2cdprintk("read error\n");
return -EIO;
}
/* IR of this card normally decode signals NEC-standard from
* - Sven IHOO MT 5.1R remote. xxyye718
* - Sven DVD HD-10xx remote. xxyyf708
* - BBK ...
* - mayby others
* So, skip not our, if disable full codes mode.
*/
if (data[10] != 0x6b && data[11] != 0x86 && disable_other_ir)
return 0;
/* Wrong data decode fix */
if (data[9] != (unsigned char)(~data[8]))
return 0;
*ir_key = data[9];
*ir_raw = data[9];
return 1;
}
/* Common (grey or coloured) pinnacle PCTV remote handling
*
*/
static int get_key_pinnacle(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw,
int parity_offset, int marker, int code_modulo)
{
unsigned char b[4];
unsigned int start = 0,parity = 0,code = 0;
/* poll IR chip */
if (4 != i2c_master_recv(ir->c, b, 4)) {
i2cdprintk("read error\n");
return -EIO;
}
for (start = 0; start < ARRAY_SIZE(b); start++) {
if (b[start] == marker) {
code=b[(start+parity_offset + 1) % 4];
parity=b[(start+parity_offset) % 4];
}
}
/* Empty Request */
if (parity == 0)
return 0;
/* Repeating... */
if (ir->old == parity)
return 0;
ir->old = parity;
/* drop special codes when a key is held down a long time for the grey controller
In this case, the second bit of the code is asserted */
if (marker == 0xfe && (code & 0x40))
return 0;
code %= code_modulo;
*ir_raw = code;
*ir_key = code;
i2cdprintk("Pinnacle PCTV key %02x\n", code);
return 1;
}
/* The grey pinnacle PCTV remote
*
* There are one issue with this remote:
* - I2c packet does not change when the same key is pressed quickly. The workaround
* is to hold down each key for about half a second, so that another code is generated
* in the i2c packet, and the function can distinguish key presses.
*
* Sylvain Pasche <sylvain.pasche@gmail.com>
*/
static int get_key_pinnacle_grey(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw)
{
return get_key_pinnacle(ir, ir_key, ir_raw, 1, 0xfe, 0xff);
}
/* The new pinnacle PCTV remote (with the colored buttons)
*
* Ricardo Cerqueira <v4l@cerqueira.org>
*/
static int get_key_pinnacle_color(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw)
{
/* code_modulo parameter (0x88) is used to reduce code value to fit inside IR_KEYTAB_SIZE
*
* this is the only value that results in 42 unique
* codes < 128
*/
return get_key_pinnacle(ir, ir_key, ir_raw, 2, 0x80, 0x88);
}
void saa7134_input_irq(struct saa7134_dev *dev)
{
struct card_ir *ir;
if (!dev || !dev->remote)
return;
ir = dev->remote;
if (!ir->running)
return;
if (ir->nec_gpio) {
saa7134_nec_irq(dev);
} else if (!ir->polling && !ir->rc5_gpio && !ir->raw_decode) {
build_key(dev);
} else if (ir->rc5_gpio) {
saa7134_rc5_irq(dev);
} else if (ir->raw_decode) {
saa7134_raw_decode_irq(dev);
}
}
static void saa7134_input_timer(unsigned long data)
{
struct saa7134_dev *dev = (struct saa7134_dev *)data;
struct card_ir *ir = dev->remote;
build_key(dev);
mod_timer(&ir->timer, jiffies + msecs_to_jiffies(ir->polling));
}
static void ir_raw_decode_timer_end(unsigned long data)
{
struct saa7134_dev *dev = (struct saa7134_dev *)data;
struct card_ir *ir = dev->remote;
ir_raw_event_handle(dev->remote->dev);
ir->active = 0;
}
static int __saa7134_ir_start(void *priv)
{
struct saa7134_dev *dev = priv;
struct card_ir *ir;
if (!dev)
return -EINVAL;
ir = dev->remote;
if (!ir)
return -EINVAL;
if (ir->running)
return 0;
ir->running = 1;
if (ir->polling) {
setup_timer(&ir->timer, saa7134_input_timer,
(unsigned long)dev);
ir->timer.expires = jiffies + HZ;
add_timer(&ir->timer);
} else if (ir->rc5_gpio) {
/* set timer_end for code completion */
init_timer(&ir->timer_end);
ir->timer_end.function = ir_rc5_timer_end;
ir->timer_end.data = (unsigned long)ir;
init_timer(&ir->timer_keyup);
ir->timer_keyup.function = ir_rc5_timer_keyup;
ir->timer_keyup.data = (unsigned long)ir;
ir->shift_by = 2;
ir->start = 0x2;
ir->addr = 0x17;
ir->rc5_key_timeout = ir_rc5_key_timeout;
ir->rc5_remote_gap = ir_rc5_remote_gap;
} else if (ir->nec_gpio) {
setup_timer(&ir->timer_keyup, saa7134_nec_timer,
(unsigned long)dev);
tasklet_init(&ir->tlet, nec_task, (unsigned long)dev);
} else if (ir->raw_decode) {
/* set timer_end for code completion */
init_timer(&ir->timer_end);
ir->timer_end.function = ir_raw_decode_timer_end;
ir->timer_end.data = (unsigned long)dev;
ir->active = 0;
}
return 0;
}
static void __saa7134_ir_stop(void *priv)
{
struct saa7134_dev *dev = priv;
struct card_ir *ir;
if (!dev)
return;
ir = dev->remote;
if (!ir)
return;
if (!ir->running)
return;
if (dev->remote->polling)
del_timer_sync(&dev->remote->timer);
else if (ir->rc5_gpio)
del_timer_sync(&ir->timer_end);
else if (ir->nec_gpio)
tasklet_kill(&ir->tlet);
else if (ir->raw_decode) {
del_timer_sync(&ir->timer_end);
ir->active = 0;
}
ir->running = 0;
return;
}
int saa7134_ir_start(struct saa7134_dev *dev)
{
if (dev->remote->users)
return __saa7134_ir_start(dev);
return 0;
}
void saa7134_ir_stop(struct saa7134_dev *dev)
{
if (dev->remote->users)
__saa7134_ir_stop(dev);
}
static int saa7134_ir_open(void *priv)
{
struct saa7134_dev *dev = priv;
dev->remote->users++;
return __saa7134_ir_start(dev);
}
static void saa7134_ir_close(void *priv)
{
struct saa7134_dev *dev = priv;
dev->remote->users--;
if (!dev->remote->users)
__saa7134_ir_stop(dev);
}
static int saa7134_ir_change_protocol(void *priv, u64 ir_type)
{
struct saa7134_dev *dev = priv;
struct card_ir *ir = dev->remote;
u32 nec_gpio, rc5_gpio;
if (ir_type == IR_TYPE_RC5) {
dprintk("Changing protocol to RC5\n");
nec_gpio = 0;
rc5_gpio = 1;
} else if (ir_type == IR_TYPE_NEC) {
dprintk("Changing protocol to NEC\n");
nec_gpio = 1;
rc5_gpio = 0;
} else {
dprintk("IR protocol type %ud is not supported\n",
(unsigned)ir_type);
return -EINVAL;
}
if (ir->running) {
saa7134_ir_stop(dev);
ir->nec_gpio = nec_gpio;
ir->rc5_gpio = rc5_gpio;
saa7134_ir_start(dev);
} else {
ir->nec_gpio = nec_gpio;
ir->rc5_gpio = rc5_gpio;
}
return 0;
}
int saa7134_input_init1(struct saa7134_dev *dev)
{
struct card_ir *ir;
struct input_dev *input_dev;
char *ir_codes = NULL;
u32 mask_keycode = 0;
u32 mask_keydown = 0;
u32 mask_keyup = 0;
int polling = 0;
int rc5_gpio = 0;
int nec_gpio = 0;
int raw_decode = 0;
int allow_protocol_change = 0;
u64 ir_type = IR_TYPE_OTHER;
int err;
if (dev->has_remote != SAA7134_REMOTE_GPIO)
return -ENODEV;
if (disable_ir)
return -ENODEV;
/* detect & configure */
switch (dev->board) {
case SAA7134_BOARD_FLYVIDEO2000:
case SAA7134_BOARD_FLYVIDEO3000:
case SAA7134_BOARD_FLYTVPLATINUM_FM:
case SAA7134_BOARD_FLYTVPLATINUM_MINI2:
case SAA7134_BOARD_ROVERMEDIA_LINK_PRO_FM:
ir_codes = RC_MAP_FLYVIDEO;
mask_keycode = 0xEC00000;
mask_keydown = 0x0040000;
break;
case SAA7134_BOARD_CINERGY400:
case SAA7134_BOARD_CINERGY600:
case SAA7134_BOARD_CINERGY600_MK3:
ir_codes = RC_MAP_CINERGY;
mask_keycode = 0x00003f;
mask_keyup = 0x040000;
break;
case SAA7134_BOARD_ECS_TVP3XP:
case SAA7134_BOARD_ECS_TVP3XP_4CB5:
ir_codes = RC_MAP_EZTV;
mask_keycode = 0x00017c;
mask_keyup = 0x000002;
polling = 50; // ms
break;
case SAA7134_BOARD_KWORLD_XPERT:
case SAA7134_BOARD_AVACSSMARTTV:
ir_codes = RC_MAP_PIXELVIEW;
mask_keycode = 0x00001F;
mask_keyup = 0x000020;
polling = 50; // ms
break;
case SAA7134_BOARD_MD2819:
case SAA7134_BOARD_KWORLD_VSTREAM_XPERT:
case SAA7134_BOARD_AVERMEDIA_305:
case SAA7134_BOARD_AVERMEDIA_307:
case SAA7134_BOARD_AVERMEDIA_STUDIO_305:
case SAA7134_BOARD_AVERMEDIA_STUDIO_505:
case SAA7134_BOARD_AVERMEDIA_STUDIO_307:
case SAA7134_BOARD_AVERMEDIA_STUDIO_507:
case SAA7134_BOARD_AVERMEDIA_STUDIO_507UA:
case SAA7134_BOARD_AVERMEDIA_GO_007_FM:
case SAA7134_BOARD_AVERMEDIA_M102:
case SAA7134_BOARD_AVERMEDIA_GO_007_FM_PLUS:
ir_codes = RC_MAP_AVERMEDIA;
mask_keycode = 0x0007C8;
mask_keydown = 0x000010;
polling = 50; // ms
/* Set GPIO pin2 to high to enable the IR controller */
saa_setb(SAA7134_GPIO_GPMODE0, 0x4);
saa_setb(SAA7134_GPIO_GPSTATUS0, 0x4);
break;
case SAA7134_BOARD_AVERMEDIA_M135A:
ir_codes = RC_MAP_AVERMEDIA_M135A;
mask_keydown = 0x0040000; /* Enable GPIO18 line on both edges */
mask_keyup = 0x0040000;
mask_keycode = 0xffff;
raw_decode = 1;
break;
case SAA7134_BOARD_AVERMEDIA_M733A:
ir_codes = RC_MAP_AVERMEDIA_M733A_RM_K6;
mask_keydown = 0x0040000;
mask_keyup = 0x0040000;
mask_keycode = 0xffff;
raw_decode = 1;
break;
case SAA7134_BOARD_AVERMEDIA_777:
case SAA7134_BOARD_AVERMEDIA_A16AR:
ir_codes = RC_MAP_AVERMEDIA;
mask_keycode = 0x02F200;
mask_keydown = 0x000400;
polling = 50; // ms
/* Without this we won't receive key up events */
saa_setb(SAA7134_GPIO_GPMODE1, 0x1);
saa_setb(SAA7134_GPIO_GPSTATUS1, 0x1);
break;
case SAA7134_BOARD_AVERMEDIA_A16D:
ir_codes = RC_MAP_AVERMEDIA_A16D;
mask_keycode = 0x02F200;
mask_keydown = 0x000400;
polling = 50; /* ms */
/* Without this we won't receive key up events */
saa_setb(SAA7134_GPIO_GPMODE1, 0x1);
saa_setb(SAA7134_GPIO_GPSTATUS1, 0x1);
break;
case SAA7134_BOARD_KWORLD_TERMINATOR:
ir_codes = RC_MAP_PIXELVIEW;
mask_keycode = 0x00001f;
mask_keyup = 0x000060;
polling = 50; // ms
break;
case SAA7134_BOARD_MANLI_MTV001:
case SAA7134_BOARD_MANLI_MTV002:
ir_codes = RC_MAP_MANLI;
mask_keycode = 0x001f00;
mask_keyup = 0x004000;
polling = 50; /* ms */
break;
case SAA7134_BOARD_BEHOLD_409FM:
case SAA7134_BOARD_BEHOLD_401:
case SAA7134_BOARD_BEHOLD_403:
case SAA7134_BOARD_BEHOLD_403FM:
case SAA7134_BOARD_BEHOLD_405:
case SAA7134_BOARD_BEHOLD_405FM:
case SAA7134_BOARD_BEHOLD_407:
case SAA7134_BOARD_BEHOLD_407FM:
case SAA7134_BOARD_BEHOLD_409:
case SAA7134_BOARD_BEHOLD_505FM:
case SAA7134_BOARD_BEHOLD_505RDS_MK5:
case SAA7134_BOARD_BEHOLD_505RDS_MK3:
case SAA7134_BOARD_BEHOLD_507_9FM:
case SAA7134_BOARD_BEHOLD_507RDS_MK3:
case SAA7134_BOARD_BEHOLD_507RDS_MK5:
ir_codes = RC_MAP_MANLI;
mask_keycode = 0x003f00;
mask_keyup = 0x004000;
polling = 50; /* ms */
break;
case SAA7134_BOARD_BEHOLD_COLUMBUS_TVFM:
ir_codes = RC_MAP_BEHOLD_COLUMBUS;
mask_keycode = 0x003f00;
mask_keyup = 0x004000;
polling = 50; // ms
break;
case SAA7134_BOARD_SEDNA_PC_TV_CARDBUS:
ir_codes = RC_MAP_PCTV_SEDNA;
mask_keycode = 0x001f00;
mask_keyup = 0x004000;
polling = 50; // ms
break;
case SAA7134_BOARD_GOTVIEW_7135:
ir_codes = RC_MAP_GOTVIEW7135;
mask_keycode = 0x0003CC;
mask_keydown = 0x000010;
polling = 5; /* ms */
saa_setb(SAA7134_GPIO_GPMODE1, 0x80);
break;
case SAA7134_BOARD_VIDEOMATE_TV_PVR:
case SAA7134_BOARD_VIDEOMATE_GOLD_PLUS:
case SAA7134_BOARD_VIDEOMATE_TV_GOLD_PLUSII:
ir_codes = RC_MAP_VIDEOMATE_TV_PVR;
mask_keycode = 0x00003F;
mask_keyup = 0x400000;
polling = 50; // ms
break;
case SAA7134_BOARD_PROTEUS_2309:
ir_codes = RC_MAP_PROTEUS_2309;
mask_keycode = 0x00007F;
mask_keyup = 0x000080;
polling = 50; // ms
break;
case SAA7134_BOARD_VIDEOMATE_DVBT_300:
case SAA7134_BOARD_VIDEOMATE_DVBT_200:
ir_codes = RC_MAP_VIDEOMATE_TV_PVR;
mask_keycode = 0x003F00;
mask_keyup = 0x040000;
break;
case SAA7134_BOARD_FLYDVBS_LR300:
case SAA7134_BOARD_FLYDVBT_LR301:
case SAA7134_BOARD_FLYDVBTDUO:
ir_codes = RC_MAP_FLYDVB;
mask_keycode = 0x0001F00;
mask_keydown = 0x0040000;
break;
case SAA7134_BOARD_ASUSTeK_P7131_DUAL:
case SAA7134_BOARD_ASUSTeK_P7131_HYBRID_LNA:
case SAA7134_BOARD_ASUSTeK_P7131_ANALOG:
ir_codes = RC_MAP_ASUS_PC39;
mask_keydown = 0x0040000; /* Enable GPIO18 line on both edges */
mask_keyup = 0x0040000;
mask_keycode = 0xffff;
raw_decode = 1;
break;
case SAA7134_BOARD_ENCORE_ENLTV:
case SAA7134_BOARD_ENCORE_ENLTV_FM:
ir_codes = RC_MAP_ENCORE_ENLTV;
mask_keycode = 0x00007f;
mask_keyup = 0x040000;
polling = 50; // ms
break;
case SAA7134_BOARD_ENCORE_ENLTV_FM53:
ir_codes = RC_MAP_ENCORE_ENLTV_FM53;
mask_keydown = 0x0040000;
mask_keycode = 0x00007f;
nec_gpio = 1;
break;
case SAA7134_BOARD_10MOONSTVMASTER3:
ir_codes = RC_MAP_ENCORE_ENLTV;
mask_keycode = 0x5f80000;
mask_keyup = 0x8000000;
polling = 50; //ms
break;
case SAA7134_BOARD_GENIUS_TVGO_A11MCE:
ir_codes = RC_MAP_GENIUS_TVGO_A11MCE;
mask_keycode = 0xff;
mask_keydown = 0xf00000;
polling = 50; /* ms */
break;
case SAA7134_BOARD_REAL_ANGEL_220:
ir_codes = RC_MAP_REAL_AUDIO_220_32_KEYS;
mask_keycode = 0x3f00;
mask_keyup = 0x4000;
polling = 50; /* ms */
break;
case SAA7134_BOARD_KWORLD_PLUS_TV_ANALOG:
ir_codes = RC_MAP_KWORLD_PLUS_TV_ANALOG;
mask_keycode = 0x7f;
polling = 40; /* ms */
break;
case SAA7134_BOARD_VIDEOMATE_S350:
ir_codes = RC_MAP_VIDEOMATE_S350;
mask_keycode = 0x003f00;
mask_keydown = 0x040000;
break;
case SAA7134_BOARD_LEADTEK_WINFAST_DTV1000S:
ir_codes = RC_MAP_WINFAST;
mask_keycode = 0x5f00;
mask_keyup = 0x020000;
polling = 50; /* ms */
break;
}
if (NULL == ir_codes) {
printk("%s: Oops: IR config error [card=%d]\n",
dev->name, dev->board);
return -ENODEV;
}
ir = kzalloc(sizeof(*ir), GFP_KERNEL);
input_dev = input_allocate_device();
if (!ir || !input_dev) {
err = -ENOMEM;
goto err_out_free;
}
ir->dev = input_dev;
dev->remote = ir;
ir->running = 0;
/* init hardware-specific stuff */
ir->mask_keycode = mask_keycode;
ir->mask_keydown = mask_keydown;
ir->mask_keyup = mask_keyup;
ir->polling = polling;
ir->rc5_gpio = rc5_gpio;
ir->nec_gpio = nec_gpio;
ir->raw_decode = raw_decode;
/* init input device */
snprintf(ir->name, sizeof(ir->name), "saa7134 IR (%s)",
saa7134_boards[dev->board].name);
snprintf(ir->phys, sizeof(ir->phys), "pci-%s/ir0",
pci_name(dev->pci));
ir->props.priv = dev;
ir->props.open = saa7134_ir_open;
ir->props.close = saa7134_ir_close;
if (raw_decode)
ir->props.driver_type = RC_DRIVER_IR_RAW;
if (!raw_decode && allow_protocol_change) {
ir->props.allowed_protos = IR_TYPE_RC5 | IR_TYPE_NEC;
ir->props.change_protocol = saa7134_ir_change_protocol;
}
err = ir_input_init(input_dev, &ir->ir, ir_type);
if (err < 0)
goto err_out_free;
input_dev->name = ir->name;
input_dev->phys = ir->phys;
input_dev->id.bustype = BUS_PCI;
input_dev->id.version = 1;
if (dev->pci->subsystem_vendor) {
input_dev->id.vendor = dev->pci->subsystem_vendor;
input_dev->id.product = dev->pci->subsystem_device;
} else {
input_dev->id.vendor = dev->pci->vendor;
input_dev->id.product = dev->pci->device;
}
input_dev->dev.parent = &dev->pci->dev;
err = ir_input_register(ir->dev, ir_codes, &ir->props, MODULE_NAME);
if (err)
goto err_out_free;
/* the remote isn't as bouncy as a keyboard */
ir->dev->rep[REP_DELAY] = repeat_delay;
ir->dev->rep[REP_PERIOD] = repeat_period;
return 0;
err_out_free:
dev->remote = NULL;
kfree(ir);
return err;
}
void saa7134_input_fini(struct saa7134_dev *dev)
{
if (NULL == dev->remote)
return;
saa7134_ir_stop(dev);
ir_input_unregister(dev->remote->dev);
kfree(dev->remote);
dev->remote = NULL;
}
void saa7134_probe_i2c_ir(struct saa7134_dev *dev)
{
struct i2c_board_info info;
struct i2c_msg msg_msi = {
.addr = 0x50,
.flags = I2C_M_RD,
.len = 0,
.buf = NULL,
};
int rc;
if (disable_ir) {
dprintk("IR has been disabled, not probing for i2c remote\n");
return;
}
memset(&info, 0, sizeof(struct i2c_board_info));
memset(&dev->init_data, 0, sizeof(dev->init_data));
strlcpy(info.type, "ir_video", I2C_NAME_SIZE);
switch (dev->board) {
case SAA7134_BOARD_PINNACLE_PCTV_110i:
case SAA7134_BOARD_PINNACLE_PCTV_310i:
dev->init_data.name = "Pinnacle PCTV";
if (pinnacle_remote == 0) {
dev->init_data.get_key = get_key_pinnacle_color;
dev->init_data.ir_codes = RC_MAP_PINNACLE_COLOR;
info.addr = 0x47;
} else {
dev->init_data.get_key = get_key_pinnacle_grey;
dev->init_data.ir_codes = RC_MAP_PINNACLE_GREY;
info.addr = 0x47;
}
break;
case SAA7134_BOARD_UPMOST_PURPLE_TV:
dev->init_data.name = "Purple TV";
dev->init_data.get_key = get_key_purpletv;
dev->init_data.ir_codes = RC_MAP_PURPLETV;
info.addr = 0x7a;
break;
case SAA7134_BOARD_MSI_TVATANYWHERE_PLUS:
dev->init_data.name = "MSI TV@nywhere Plus";
dev->init_data.get_key = get_key_msi_tvanywhere_plus;
dev->init_data.ir_codes = RC_MAP_MSI_TVANYWHERE_PLUS;
/*
* MSI TV@nyware Plus requires more frequent polling
* otherwise it will miss some keypresses
*/
dev->init_data.polling_interval = 50;
info.addr = 0x30;
/* MSI TV@nywhere Plus controller doesn't seem to
respond to probes unless we read something from
an existing device. Weird...
REVISIT: might no longer be needed */
rc = i2c_transfer(&dev->i2c_adap, &msg_msi, 1);
dprintk(KERN_DEBUG "probe 0x%02x @ %s: %s\n",
msg_msi.addr, dev->i2c_adap.name,
(1 == rc) ? "yes" : "no");
break;
case SAA7134_BOARD_HAUPPAUGE_HVR1110:
dev->init_data.name = "HVR 1110";
dev->init_data.get_key = get_key_hvr1110;
dev->init_data.ir_codes = RC_MAP_HAUPPAUGE_NEW;
info.addr = 0x71;
break;
case SAA7134_BOARD_BEHOLD_607FM_MK3:
case SAA7134_BOARD_BEHOLD_607FM_MK5:
case SAA7134_BOARD_BEHOLD_609FM_MK3:
case SAA7134_BOARD_BEHOLD_609FM_MK5:
case SAA7134_BOARD_BEHOLD_607RDS_MK3:
case SAA7134_BOARD_BEHOLD_607RDS_MK5:
case SAA7134_BOARD_BEHOLD_609RDS_MK3:
case SAA7134_BOARD_BEHOLD_609RDS_MK5:
case SAA7134_BOARD_BEHOLD_M6:
case SAA7134_BOARD_BEHOLD_M63:
case SAA7134_BOARD_BEHOLD_M6_EXTRA:
case SAA7134_BOARD_BEHOLD_H6:
case SAA7134_BOARD_BEHOLD_X7:
case SAA7134_BOARD_BEHOLD_H7:
case SAA7134_BOARD_BEHOLD_A7:
dev->init_data.name = "BeholdTV";
dev->init_data.get_key = get_key_beholdm6xx;
dev->init_data.ir_codes = RC_MAP_BEHOLD;
dev->init_data.type = IR_TYPE_NEC;
info.addr = 0x2d;
break;
case SAA7134_BOARD_AVERMEDIA_CARDBUS_501:
case SAA7134_BOARD_AVERMEDIA_CARDBUS_506:
info.addr = 0x40;
break;
case SAA7134_BOARD_FLYDVB_TRIO:
dev->init_data.name = "FlyDVB Trio";
dev->init_data.get_key = get_key_flydvb_trio;
dev->init_data.ir_codes = RC_MAP_FLYDVB;
info.addr = 0x0b;
break;
default:
dprintk("No I2C IR support for board %x\n", dev->board);
return;
}
if (dev->init_data.name)
info.platform_data = &dev->init_data;
i2c_new_device(&dev->i2c_adap, &info);
}
static int saa7134_raw_decode_irq(struct saa7134_dev *dev)
{
struct card_ir *ir = dev->remote;
unsigned long timeout;
int space;
/* Generate initial event */
saa_clearb(SAA7134_GPIO_GPMODE3, SAA7134_GPIO_GPRESCAN);
saa_setb(SAA7134_GPIO_GPMODE3, SAA7134_GPIO_GPRESCAN);
space = saa_readl(SAA7134_GPIO_GPSTATUS0 >> 2) & ir->mask_keydown;
ir_raw_event_store_edge(dev->remote->dev, space ? IR_SPACE : IR_PULSE);
/*
* Wait 15 ms from the start of the first IR event before processing
* the event. This time is enough for NEC protocol. May need adjustments
* to work with other protocols.
*/
if (!ir->active) {
timeout = jiffies + jiffies_to_msecs(15);
mod_timer(&ir->timer_end, timeout);
ir->active = 1;
}
return 1;
}
static int saa7134_rc5_irq(struct saa7134_dev *dev)
{
struct card_ir *ir = dev->remote;
struct timeval tv;
u32 gap;
unsigned long current_jiffies, timeout;
/* get time of bit */
current_jiffies = jiffies;
do_gettimeofday(&tv);
/* avoid overflow with gap >1s */
if (tv.tv_sec - ir->base_time.tv_sec > 1) {
gap = 200000;
} else {
gap = 1000000 * (tv.tv_sec - ir->base_time.tv_sec) +
tv.tv_usec - ir->base_time.tv_usec;
}
/* active code => add bit */
if (ir->active) {
/* only if in the code (otherwise spurious IRQ or timer
late) */
if (ir->last_bit < 28) {
ir->last_bit = (gap - ir_rc5_remote_gap / 2) /
ir_rc5_remote_gap;
ir->code |= 1 << ir->last_bit;
}
/* starting new code */
} else {
ir->active = 1;
ir->code = 0;
ir->base_time = tv;
ir->last_bit = 0;
timeout = current_jiffies + (500 + 30 * HZ) / 1000;
mod_timer(&ir->timer_end, timeout);
}
return 1;
}
/* On NEC protocol, One has 2.25 ms, and zero has 1.125 ms
The first pulse (start) has 9 + 4.5 ms
*/
static void saa7134_nec_timer(unsigned long data)
{
struct saa7134_dev *dev = (struct saa7134_dev *) data;
struct card_ir *ir = dev->remote;
dprintk("Cancel key repeat\n");
ir_input_nokey(ir->dev, &ir->ir);
}
static void nec_task(unsigned long data)
{
struct saa7134_dev *dev = (struct saa7134_dev *) data;
struct card_ir *ir;
struct timeval tv;
int count, pulse, oldpulse, gap;
u32 ircode = 0, not_code = 0;
int ngap = 0;
if (!data) {
printk(KERN_ERR "saa713x/ir: Can't recover dev struct\n");
/* GPIO will be kept disabled */
return;
}
ir = dev->remote;
/* rising SAA7134_GPIO_GPRESCAN reads the status */
saa_clearb(SAA7134_GPIO_GPMODE3, SAA7134_GPIO_GPRESCAN);
saa_setb(SAA7134_GPIO_GPMODE3, SAA7134_GPIO_GPRESCAN);
oldpulse = saa_readl(SAA7134_GPIO_GPSTATUS0 >> 2) & ir->mask_keydown;
pulse = oldpulse;
do_gettimeofday(&tv);
ir->base_time = tv;
/* Decode NEC pulsecode. This code can take up to 76.5 ms to run.
Unfortunately, using IRQ to decode pulse didn't work, since it uses
a pulse train of 38KHz. This means one pulse on each 52 us
*/
do {
/* Wait until the end of pulse/space or 5 ms */
for (count = 0; count < 500; count++) {
udelay(10);
/* rising SAA7134_GPIO_GPRESCAN reads the status */
saa_clearb(SAA7134_GPIO_GPMODE3, SAA7134_GPIO_GPRESCAN);
saa_setb(SAA7134_GPIO_GPMODE3, SAA7134_GPIO_GPRESCAN);
pulse = saa_readl(SAA7134_GPIO_GPSTATUS0 >> 2)
& ir->mask_keydown;
if (pulse != oldpulse)
break;
}
do_gettimeofday(&tv);
gap = 1000000 * (tv.tv_sec - ir->base_time.tv_sec) +
tv.tv_usec - ir->base_time.tv_usec;
if (!pulse) {
/* Bit 0 has 560 us, while bit 1 has 1120 us.
Do something only if bit == 1
*/
if (ngap && (gap > 560 + 280)) {
unsigned int shift = ngap - 1;
/* Address first, then command */
if (shift < 8) {
shift += 8;
ircode |= 1 << shift;
} else if (shift < 16) {
not_code |= 1 << shift;
} else if (shift < 24) {
shift -= 16;
ircode |= 1 << shift;
} else {
shift -= 24;
not_code |= 1 << shift;
}
}
ngap++;
}
ir->base_time = tv;
/* TIMEOUT - Long pulse */
if (gap >= 5000)
break;
oldpulse = pulse;
} while (ngap < 32);
if (ngap == 32) {
/* FIXME: should check if not_code == ~ircode */
ir->code = ir_extract_bits(ircode, ir->mask_keycode);
dprintk("scancode = 0x%02x (code = 0x%02x, notcode= 0x%02x)\n",
ir->code, ircode, not_code);
ir_input_keydown(ir->dev, &ir->ir, ir->code);
} else
dprintk("Repeat last key\n");
/* Keep repeating the last key */
mod_timer(&ir->timer_keyup, jiffies + msecs_to_jiffies(150));
saa_setl(SAA7134_IRQ2, SAA7134_IRQ2_INTE_GPIO18_P);
}
static int saa7134_nec_irq(struct saa7134_dev *dev)
{
struct card_ir *ir = dev->remote;
saa_clearl(SAA7134_IRQ2, SAA7134_IRQ2_INTE_GPIO18_P);
tasklet_schedule(&ir->tlet);
return 1;
}
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