bce8d0fe4a
Something weird happened with commit 740069e6e043403199dbe2b42256722fb814f6ae. Instead of dong the right thing, it got somehow corrupted and reverted the rc changes. Thanks to David Härdeman for pointing me about the problem. This patch should be merged with 740069e6e04 before sending upstream. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
574 lines
13 KiB
C
574 lines
13 KiB
C
/*
|
|
*
|
|
* 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/delay.h>
|
|
#include <linux/interrupt.h>
|
|
#include <linux/input.h>
|
|
#include <linux/slab.h>
|
|
|
|
#include "bttv.h"
|
|
#include "bttvp.h"
|
|
|
|
|
|
static int ir_debug;
|
|
module_param(ir_debug, int, 0644);
|
|
|
|
static int ir_rc5_remote_gap = 885;
|
|
module_param(ir_rc5_remote_gap, int, 0644);
|
|
|
|
#undef dprintk
|
|
#define dprintk(arg...) do { \
|
|
if (ir_debug >= 1) \
|
|
printk(arg); \
|
|
} while (0)
|
|
|
|
#define DEVNAME "bttv-input"
|
|
|
|
#define MODULE_NAME "bttv"
|
|
|
|
/* ---------------------------------------------------------------------- */
|
|
|
|
static void ir_handle_key(struct bttv *btv)
|
|
{
|
|
struct card_ir *ir = btv->remote;
|
|
u32 gpio,data;
|
|
|
|
/* read gpio value */
|
|
gpio = bttv_gpio_read(&btv->c);
|
|
if (ir->polling) {
|
|
if (ir->last_gpio == gpio)
|
|
return;
|
|
ir->last_gpio = gpio;
|
|
}
|
|
|
|
/* extract data */
|
|
data = ir_extract_bits(gpio, ir->mask_keycode);
|
|
dprintk(KERN_INFO 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 && (gpio & ir->mask_keydown)) ||
|
|
(ir->mask_keyup && !(gpio & ir->mask_keyup))) {
|
|
ir_keydown_notimeout(ir->dev, data, 0);
|
|
} else {
|
|
/* HACK: Probably, ir->mask_keydown is missing
|
|
for this board */
|
|
if (btv->c.type == BTTV_BOARD_WINFAST2000)
|
|
ir_keydown_notimeout(ir->dev, data, 0);
|
|
|
|
ir_keyup(ir->dev);
|
|
}
|
|
}
|
|
|
|
static void ir_enltv_handle_key(struct bttv *btv)
|
|
{
|
|
struct card_ir *ir = btv->remote;
|
|
u32 gpio, data, keyup;
|
|
|
|
/* read gpio value */
|
|
gpio = bttv_gpio_read(&btv->c);
|
|
|
|
/* extract data */
|
|
data = ir_extract_bits(gpio, ir->mask_keycode);
|
|
|
|
/* Check if it is keyup */
|
|
keyup = (gpio & ir->mask_keyup) ? 1 << 31 : 0;
|
|
|
|
if ((ir->last_gpio & 0x7f) != data) {
|
|
dprintk(KERN_INFO DEVNAME ": gpio=0x%x code=%d | %s\n",
|
|
gpio, data,
|
|
(gpio & ir->mask_keyup) ? " up" : "up/down");
|
|
|
|
ir_keydown_notimeout(ir->dev, data, 0);
|
|
if (keyup)
|
|
ir_keyup(ir->dev);
|
|
} else {
|
|
if ((ir->last_gpio & 1 << 31) == keyup)
|
|
return;
|
|
|
|
dprintk(KERN_INFO DEVNAME ":(cnt) gpio=0x%x code=%d | %s\n",
|
|
gpio, data,
|
|
(gpio & ir->mask_keyup) ? " up" : "down");
|
|
|
|
if (keyup)
|
|
ir_keyup(ir->dev);
|
|
else
|
|
ir_keydown_notimeout(ir->dev, data, 0);
|
|
}
|
|
|
|
ir->last_gpio = data | keyup;
|
|
}
|
|
|
|
void bttv_input_irq(struct bttv *btv)
|
|
{
|
|
struct card_ir *ir = btv->remote;
|
|
|
|
if (!ir->polling)
|
|
ir_handle_key(btv);
|
|
}
|
|
|
|
static void bttv_input_timer(unsigned long data)
|
|
{
|
|
struct bttv *btv = (struct bttv*)data;
|
|
struct card_ir *ir = btv->remote;
|
|
|
|
if (btv->c.type == BTTV_BOARD_ENLTV_FM_2)
|
|
ir_enltv_handle_key(btv);
|
|
else
|
|
ir_handle_key(btv);
|
|
mod_timer(&ir->timer, jiffies + msecs_to_jiffies(ir->polling));
|
|
}
|
|
|
|
/*
|
|
* FIXME: Nebula digi uses the legacy way to decode RC5, instead of relying
|
|
* on the rc-core way. As we need to be sure that both IRQ transitions are
|
|
* properly triggered, Better to touch it only with this hardware for
|
|
* testing.
|
|
*/
|
|
|
|
/* decode raw bit pattern to RC5 code */
|
|
static u32 bttv_rc5_decode(unsigned int code)
|
|
{
|
|
unsigned int org_code = code;
|
|
unsigned int pair;
|
|
unsigned int rc5 = 0;
|
|
int i;
|
|
|
|
for (i = 0; i < 14; ++i) {
|
|
pair = code & 0x3;
|
|
code >>= 2;
|
|
|
|
rc5 <<= 1;
|
|
switch (pair) {
|
|
case 0:
|
|
case 2:
|
|
break;
|
|
case 1:
|
|
rc5 |= 1;
|
|
break;
|
|
case 3:
|
|
dprintk(KERN_INFO DEVNAME ":rc5_decode(%x) bad code\n",
|
|
org_code);
|
|
return 0;
|
|
}
|
|
}
|
|
dprintk(KERN_INFO DEVNAME ":"
|
|
"code=%x, rc5=%x, start=%x, toggle=%x, address=%x, "
|
|
"instr=%x\n", rc5, org_code, RC5_START(rc5),
|
|
RC5_TOGGLE(rc5), RC5_ADDR(rc5), RC5_INSTR(rc5));
|
|
return rc5;
|
|
}
|
|
|
|
void bttv_rc5_timer_end(unsigned long data)
|
|
{
|
|
struct card_ir *ir = (struct card_ir *)data;
|
|
struct timeval tv;
|
|
unsigned long current_jiffies;
|
|
u32 gap;
|
|
u32 rc5 = 0;
|
|
|
|
/* get time */
|
|
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;
|
|
}
|
|
|
|
/* signal we're ready to start a new code */
|
|
ir->active = 0;
|
|
|
|
/* Allow some timer jitter (RC5 is ~24ms anyway so this is ok) */
|
|
if (gap < 28000) {
|
|
dprintk(KERN_INFO DEVNAME ": spurious timer_end\n");
|
|
return;
|
|
}
|
|
|
|
if (ir->last_bit < 20) {
|
|
/* ignore spurious codes (caused by light/other remotes) */
|
|
dprintk(KERN_INFO DEVNAME ": short code: %x\n", ir->code);
|
|
} else {
|
|
ir->code = (ir->code << ir->shift_by) | 1;
|
|
rc5 = bttv_rc5_decode(ir->code);
|
|
|
|
/* two start bits? */
|
|
if (RC5_START(rc5) != ir->start) {
|
|
printk(KERN_INFO DEVNAME ":"
|
|
" rc5 start bits invalid: %u\n", RC5_START(rc5));
|
|
|
|
/* right address? */
|
|
} else if (RC5_ADDR(rc5) == ir->addr) {
|
|
u32 toggle = RC5_TOGGLE(rc5);
|
|
u32 instr = RC5_INSTR(rc5);
|
|
|
|
/* Good code */
|
|
ir_keydown(ir->dev, instr, toggle);
|
|
dprintk(KERN_INFO DEVNAME ":"
|
|
" instruction %x, toggle %x\n",
|
|
instr, toggle);
|
|
}
|
|
}
|
|
}
|
|
|
|
static int bttv_rc5_irq(struct bttv *btv)
|
|
{
|
|
struct card_ir *ir = btv->remote;
|
|
struct timeval tv;
|
|
u32 gpio;
|
|
u32 gap;
|
|
unsigned long current_jiffies;
|
|
|
|
/* read gpio port */
|
|
gpio = bttv_gpio_read(&btv->c);
|
|
|
|
/* remote IRQ? */
|
|
if (!(gpio & 0x20))
|
|
return 0;
|
|
|
|
/* 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;
|
|
|
|
mod_timer(&ir->timer_end,
|
|
current_jiffies + msecs_to_jiffies(30));
|
|
}
|
|
|
|
/* toggle GPIO pin 4 to reset the irq */
|
|
bttv_gpio_write(&btv->c, gpio & ~(1 << 4));
|
|
bttv_gpio_write(&btv->c, gpio | (1 << 4));
|
|
return 1;
|
|
}
|
|
|
|
/* ---------------------------------------------------------------------- */
|
|
|
|
static void bttv_ir_start(struct bttv *btv, struct card_ir *ir)
|
|
{
|
|
if (ir->polling) {
|
|
setup_timer(&ir->timer, bttv_input_timer, (unsigned long)btv);
|
|
ir->timer.expires = jiffies + msecs_to_jiffies(1000);
|
|
add_timer(&ir->timer);
|
|
} else if (ir->rc5_gpio) {
|
|
/* set timer_end for code completion */
|
|
init_timer(&ir->timer_end);
|
|
ir->timer_end.function = bttv_rc5_timer_end;
|
|
ir->timer_end.data = (unsigned long)ir;
|
|
ir->shift_by = 1;
|
|
ir->start = 3;
|
|
ir->addr = 0x0;
|
|
ir->rc5_remote_gap = ir_rc5_remote_gap;
|
|
}
|
|
}
|
|
|
|
static void bttv_ir_stop(struct bttv *btv)
|
|
{
|
|
if (btv->remote->polling) {
|
|
del_timer_sync(&btv->remote->timer);
|
|
flush_scheduled_work();
|
|
}
|
|
|
|
if (btv->remote->rc5_gpio) {
|
|
u32 gpio;
|
|
|
|
del_timer_sync(&btv->remote->timer_end);
|
|
flush_scheduled_work();
|
|
|
|
gpio = bttv_gpio_read(&btv->c);
|
|
bttv_gpio_write(&btv->c, gpio & ~(1 << 4));
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Get_key functions used by I2C remotes
|
|
*/
|
|
|
|
static int get_key_pv951(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)) {
|
|
dprintk(KERN_INFO DEVNAME ": read error\n");
|
|
return -EIO;
|
|
}
|
|
|
|
/* ignore 0xaa */
|
|
if (b==0xaa)
|
|
return 0;
|
|
dprintk(KERN_INFO DEVNAME ": key %02x\n", b);
|
|
|
|
*ir_key = b;
|
|
*ir_raw = b;
|
|
return 1;
|
|
}
|
|
|
|
/* Instantiate the I2C IR receiver device, if present */
|
|
void __devinit init_bttv_i2c_ir(struct bttv *btv)
|
|
{
|
|
const unsigned short addr_list[] = {
|
|
0x1a, 0x18, 0x64, 0x30, 0x71,
|
|
I2C_CLIENT_END
|
|
};
|
|
struct i2c_board_info info;
|
|
|
|
if (0 != btv->i2c_rc)
|
|
return;
|
|
|
|
memset(&info, 0, sizeof(struct i2c_board_info));
|
|
memset(&btv->init_data, 0, sizeof(btv->init_data));
|
|
strlcpy(info.type, "ir_video", I2C_NAME_SIZE);
|
|
|
|
switch (btv->c.type) {
|
|
case BTTV_BOARD_PV951:
|
|
btv->init_data.name = "PV951";
|
|
btv->init_data.get_key = get_key_pv951;
|
|
btv->init_data.ir_codes = RC_MAP_PV951;
|
|
info.addr = 0x4b;
|
|
break;
|
|
default:
|
|
/*
|
|
* 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
|
|
*/
|
|
|
|
i2c_new_probed_device(&btv->c.i2c_adap, &info, addr_list, NULL);
|
|
return;
|
|
}
|
|
|
|
if (btv->init_data.name)
|
|
info.platform_data = &btv->init_data;
|
|
i2c_new_device(&btv->c.i2c_adap, &info);
|
|
|
|
return;
|
|
}
|
|
|
|
int __devexit fini_bttv_i2c(struct bttv *btv)
|
|
{
|
|
if (0 != btv->i2c_rc)
|
|
return 0;
|
|
|
|
return i2c_del_adapter(&btv->c.i2c_adap);
|
|
}
|
|
|
|
int bttv_input_init(struct bttv *btv)
|
|
{
|
|
struct card_ir *ir;
|
|
char *ir_codes = NULL;
|
|
struct rc_dev *rc;
|
|
int err = -ENOMEM;
|
|
|
|
if (!btv->has_remote)
|
|
return -ENODEV;
|
|
|
|
ir = kzalloc(sizeof(*ir),GFP_KERNEL);
|
|
rc = rc_allocate_device();
|
|
if (!ir || !rc)
|
|
goto err_out_free;
|
|
|
|
/* detect & configure */
|
|
switch (btv->c.type) {
|
|
case BTTV_BOARD_AVERMEDIA:
|
|
case BTTV_BOARD_AVPHONE98:
|
|
case BTTV_BOARD_AVERMEDIA98:
|
|
ir_codes = RC_MAP_AVERMEDIA;
|
|
ir->mask_keycode = 0xf88000;
|
|
ir->mask_keydown = 0x010000;
|
|
ir->polling = 50; // ms
|
|
break;
|
|
|
|
case BTTV_BOARD_AVDVBT_761:
|
|
case BTTV_BOARD_AVDVBT_771:
|
|
ir_codes = RC_MAP_AVERMEDIA_DVBT;
|
|
ir->mask_keycode = 0x0f00c0;
|
|
ir->mask_keydown = 0x000020;
|
|
ir->polling = 50; // ms
|
|
break;
|
|
|
|
case BTTV_BOARD_PXELVWPLTVPAK:
|
|
ir_codes = RC_MAP_PIXELVIEW;
|
|
ir->mask_keycode = 0x003e00;
|
|
ir->mask_keyup = 0x010000;
|
|
ir->polling = 50; // ms
|
|
break;
|
|
case BTTV_BOARD_PV_M4900:
|
|
case BTTV_BOARD_PV_BT878P_9B:
|
|
case BTTV_BOARD_PV_BT878P_PLUS:
|
|
ir_codes = RC_MAP_PIXELVIEW;
|
|
ir->mask_keycode = 0x001f00;
|
|
ir->mask_keyup = 0x008000;
|
|
ir->polling = 50; // ms
|
|
break;
|
|
|
|
case BTTV_BOARD_WINFAST2000:
|
|
ir_codes = RC_MAP_WINFAST;
|
|
ir->mask_keycode = 0x1f8;
|
|
break;
|
|
case BTTV_BOARD_MAGICTVIEW061:
|
|
case BTTV_BOARD_MAGICTVIEW063:
|
|
ir_codes = RC_MAP_WINFAST;
|
|
ir->mask_keycode = 0x0008e000;
|
|
ir->mask_keydown = 0x00200000;
|
|
break;
|
|
case BTTV_BOARD_APAC_VIEWCOMP:
|
|
ir_codes = RC_MAP_APAC_VIEWCOMP;
|
|
ir->mask_keycode = 0x001f00;
|
|
ir->mask_keyup = 0x008000;
|
|
ir->polling = 50; // ms
|
|
break;
|
|
case BTTV_BOARD_ASKEY_CPH03X:
|
|
case BTTV_BOARD_CONCEPTRONIC_CTVFMI2:
|
|
case BTTV_BOARD_CONTVFMI:
|
|
ir_codes = RC_MAP_PIXELVIEW;
|
|
ir->mask_keycode = 0x001F00;
|
|
ir->mask_keyup = 0x006000;
|
|
ir->polling = 50; // ms
|
|
break;
|
|
case BTTV_BOARD_NEBULA_DIGITV:
|
|
ir_codes = RC_MAP_NEBULA;
|
|
btv->custom_irq = bttv_rc5_irq;
|
|
ir->rc5_gpio = 1;
|
|
break;
|
|
case BTTV_BOARD_MACHTV_MAGICTV:
|
|
ir_codes = RC_MAP_APAC_VIEWCOMP;
|
|
ir->mask_keycode = 0x001F00;
|
|
ir->mask_keyup = 0x004000;
|
|
ir->polling = 50; /* ms */
|
|
break;
|
|
case BTTV_BOARD_KOZUMI_KTV_01C:
|
|
ir_codes = RC_MAP_PCTV_SEDNA;
|
|
ir->mask_keycode = 0x001f00;
|
|
ir->mask_keyup = 0x006000;
|
|
ir->polling = 50; /* ms */
|
|
break;
|
|
case BTTV_BOARD_ENLTV_FM_2:
|
|
ir_codes = RC_MAP_ENCORE_ENLTV2;
|
|
ir->mask_keycode = 0x00fd00;
|
|
ir->mask_keyup = 0x000080;
|
|
ir->polling = 1; /* ms */
|
|
ir->last_gpio = ir_extract_bits(bttv_gpio_read(&btv->c),
|
|
ir->mask_keycode);
|
|
break;
|
|
}
|
|
if (NULL == ir_codes) {
|
|
dprintk(KERN_INFO "Ooops: IR config error [card=%d]\n", btv->c.type);
|
|
err = -ENODEV;
|
|
goto err_out_free;
|
|
}
|
|
|
|
if (ir->rc5_gpio) {
|
|
u32 gpio;
|
|
/* enable remote irq */
|
|
bttv_gpio_inout(&btv->c, (1 << 4), 1 << 4);
|
|
gpio = bttv_gpio_read(&btv->c);
|
|
bttv_gpio_write(&btv->c, gpio & ~(1 << 4));
|
|
bttv_gpio_write(&btv->c, gpio | (1 << 4));
|
|
} else {
|
|
/* init hardware-specific stuff */
|
|
bttv_gpio_inout(&btv->c, ir->mask_keycode | ir->mask_keydown, 0);
|
|
}
|
|
|
|
/* init input device */
|
|
ir->dev = rc;
|
|
|
|
snprintf(ir->name, sizeof(ir->name), "bttv IR (card=%d)",
|
|
btv->c.type);
|
|
snprintf(ir->phys, sizeof(ir->phys), "pci-%s/ir0",
|
|
pci_name(btv->c.pci));
|
|
|
|
rc->input_name = ir->name;
|
|
rc->input_phys = ir->phys;
|
|
rc->input_id.bustype = BUS_PCI;
|
|
rc->input_id.version = 1;
|
|
if (btv->c.pci->subsystem_vendor) {
|
|
rc->input_id.vendor = btv->c.pci->subsystem_vendor;
|
|
rc->input_id.product = btv->c.pci->subsystem_device;
|
|
} else {
|
|
rc->input_id.vendor = btv->c.pci->vendor;
|
|
rc->input_id.product = btv->c.pci->device;
|
|
}
|
|
rc->dev.parent = &btv->c.pci->dev;
|
|
rc->map_name = ir_codes;
|
|
rc->driver_name = MODULE_NAME;
|
|
|
|
btv->remote = ir;
|
|
bttv_ir_start(btv, ir);
|
|
|
|
/* all done */
|
|
err = rc_register_device(rc);
|
|
if (err)
|
|
goto err_out_stop;
|
|
|
|
return 0;
|
|
|
|
err_out_stop:
|
|
bttv_ir_stop(btv);
|
|
btv->remote = NULL;
|
|
err_out_free:
|
|
rc_free_device(rc);
|
|
kfree(ir);
|
|
return err;
|
|
}
|
|
|
|
void bttv_input_fini(struct bttv *btv)
|
|
{
|
|
if (btv->remote == NULL)
|
|
return;
|
|
|
|
bttv_ir_stop(btv);
|
|
rc_unregister_device(btv->remote->dev);
|
|
kfree(btv->remote);
|
|
btv->remote = NULL;
|
|
}
|