// SPDX-License-Identifier: GPL-2.0-or-later
|
/*
|
*
|
* Device driver for GPIO attached remote control interfaces
|
* on Conexant 2388x based TV/DVB cards.
|
*
|
* Copyright (c) 2003 Pavel Machek
|
* Copyright (c) 2004 Gerd Knorr
|
* Copyright (c) 2004, 2005 Chris Pascoe
|
*/
|
|
#include "cx88.h"
|
|
#include <linux/init.h>
|
#include <linux/hrtimer.h>
|
#include <linux/pci.h>
|
#include <linux/slab.h>
|
#include <linux/module.h>
|
|
#include <media/rc-core.h>
|
|
#define MODULE_NAME "cx88xx"
|
|
/* ---------------------------------------------------------------------- */
|
|
struct cx88_IR {
|
struct cx88_core *core;
|
struct rc_dev *dev;
|
|
int users;
|
|
char name[32];
|
char phys[32];
|
|
/* sample from gpio pin 16 */
|
u32 sampling;
|
|
/* poll external decoder */
|
int polling;
|
struct hrtimer timer;
|
u32 gpio_addr;
|
u32 last_gpio;
|
u32 mask_keycode;
|
u32 mask_keydown;
|
u32 mask_keyup;
|
};
|
|
static unsigned int ir_samplerate = 4;
|
module_param(ir_samplerate, uint, 0444);
|
MODULE_PARM_DESC(ir_samplerate, "IR samplerate in kHz, 1 - 20, default 4");
|
|
static int ir_debug;
|
module_param(ir_debug, int, 0644); /* debug level [IR] */
|
MODULE_PARM_DESC(ir_debug, "enable debug messages [IR]");
|
|
#define ir_dprintk(fmt, arg...) do { \
|
if (ir_debug) \
|
printk(KERN_DEBUG "%s IR: " fmt, ir->core->name, ##arg);\
|
} while (0)
|
|
#define dprintk(fmt, arg...) do { \
|
if (ir_debug) \
|
printk(KERN_DEBUG "cx88 IR: " fmt, ##arg); \
|
} while (0)
|
|
/* ---------------------------------------------------------------------- */
|
|
static void cx88_ir_handle_key(struct cx88_IR *ir)
|
{
|
struct cx88_core *core = ir->core;
|
u32 gpio, data, auxgpio;
|
|
/* read gpio value */
|
gpio = cx_read(ir->gpio_addr);
|
switch (core->boardnr) {
|
case CX88_BOARD_NPGTECH_REALTV_TOP10FM:
|
/*
|
* This board apparently uses a combination of 2 GPIO
|
* to represent the keys. Additionally, the second GPIO
|
* can be used for parity.
|
*
|
* Example:
|
*
|
* for key "5"
|
* gpio = 0x758, auxgpio = 0xe5 or 0xf5
|
* for key "Power"
|
* gpio = 0x758, auxgpio = 0xed or 0xfd
|
*/
|
|
auxgpio = cx_read(MO_GP1_IO);
|
/* Take out the parity part */
|
gpio = (gpio & 0x7fd) + (auxgpio & 0xef);
|
break;
|
case CX88_BOARD_WINFAST_DTV1000:
|
case CX88_BOARD_WINFAST_DTV1800H:
|
case CX88_BOARD_WINFAST_DTV1800H_XC4000:
|
case CX88_BOARD_WINFAST_DTV2000H_PLUS:
|
case CX88_BOARD_WINFAST_TV2000_XP_GLOBAL:
|
case CX88_BOARD_WINFAST_TV2000_XP_GLOBAL_6F36:
|
case CX88_BOARD_WINFAST_TV2000_XP_GLOBAL_6F43:
|
gpio = (gpio & 0x6ff) | ((cx_read(MO_GP1_IO) << 8) & 0x900);
|
auxgpio = gpio;
|
break;
|
default:
|
auxgpio = gpio;
|
}
|
if (ir->polling) {
|
if (ir->last_gpio == auxgpio)
|
return;
|
ir->last_gpio = auxgpio;
|
}
|
|
/* extract data */
|
data = ir_extract_bits(gpio, ir->mask_keycode);
|
ir_dprintk("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->core->boardnr == CX88_BOARD_NORWOOD_MICRO) {
|
u32 gpio_key = cx_read(MO_GP0_IO);
|
|
data = (data << 4) | ((gpio_key & 0xf0) >> 4);
|
|
rc_keydown(ir->dev, RC_PROTO_UNKNOWN, data, 0);
|
|
} else if (ir->core->boardnr == CX88_BOARD_PROLINK_PLAYTVPVR ||
|
ir->core->boardnr == CX88_BOARD_PIXELVIEW_PLAYTV_ULTRA_PRO) {
|
/* bit cleared on keydown, NEC scancode, 0xAAAACC, A = 0x866b */
|
u16 addr;
|
u8 cmd;
|
u32 scancode;
|
|
addr = (data >> 8) & 0xffff;
|
cmd = (data >> 0) & 0x00ff;
|
scancode = RC_SCANCODE_NECX(addr, cmd);
|
|
if (0 == (gpio & ir->mask_keyup))
|
rc_keydown_notimeout(ir->dev, RC_PROTO_NECX, scancode,
|
0);
|
else
|
rc_keyup(ir->dev);
|
|
} else if (ir->mask_keydown) {
|
/* bit set on keydown */
|
if (gpio & ir->mask_keydown)
|
rc_keydown_notimeout(ir->dev, RC_PROTO_UNKNOWN, data,
|
0);
|
else
|
rc_keyup(ir->dev);
|
|
} else if (ir->mask_keyup) {
|
/* bit cleared on keydown */
|
if (0 == (gpio & ir->mask_keyup))
|
rc_keydown_notimeout(ir->dev, RC_PROTO_UNKNOWN, data,
|
0);
|
else
|
rc_keyup(ir->dev);
|
|
} else {
|
/* can't distinguish keydown/up :-/ */
|
rc_keydown_notimeout(ir->dev, RC_PROTO_UNKNOWN, data, 0);
|
rc_keyup(ir->dev);
|
}
|
}
|
|
static enum hrtimer_restart cx88_ir_work(struct hrtimer *timer)
|
{
|
u64 missed;
|
struct cx88_IR *ir = container_of(timer, struct cx88_IR, timer);
|
|
cx88_ir_handle_key(ir);
|
missed = hrtimer_forward_now(&ir->timer,
|
ktime_set(0, ir->polling * 1000000));
|
if (missed > 1)
|
ir_dprintk("Missed ticks %llu\n", missed - 1);
|
|
return HRTIMER_RESTART;
|
}
|
|
static int __cx88_ir_start(void *priv)
|
{
|
struct cx88_core *core = priv;
|
struct cx88_IR *ir;
|
|
if (!core || !core->ir)
|
return -EINVAL;
|
|
ir = core->ir;
|
|
if (ir->polling) {
|
hrtimer_init(&ir->timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
|
ir->timer.function = cx88_ir_work;
|
hrtimer_start(&ir->timer,
|
ktime_set(0, ir->polling * 1000000),
|
HRTIMER_MODE_REL);
|
}
|
if (ir->sampling) {
|
core->pci_irqmask |= PCI_INT_IR_SMPINT;
|
cx_write(MO_DDS_IO, 0x33F286 * ir_samplerate); /* samplerate */
|
cx_write(MO_DDSCFG_IO, 0x5); /* enable */
|
}
|
return 0;
|
}
|
|
static void __cx88_ir_stop(void *priv)
|
{
|
struct cx88_core *core = priv;
|
struct cx88_IR *ir;
|
|
if (!core || !core->ir)
|
return;
|
|
ir = core->ir;
|
if (ir->sampling) {
|
cx_write(MO_DDSCFG_IO, 0x0);
|
core->pci_irqmask &= ~PCI_INT_IR_SMPINT;
|
}
|
|
if (ir->polling)
|
hrtimer_cancel(&ir->timer);
|
}
|
|
int cx88_ir_start(struct cx88_core *core)
|
{
|
if (core->ir->users)
|
return __cx88_ir_start(core);
|
|
return 0;
|
}
|
EXPORT_SYMBOL(cx88_ir_start);
|
|
void cx88_ir_stop(struct cx88_core *core)
|
{
|
if (core->ir->users)
|
__cx88_ir_stop(core);
|
}
|
EXPORT_SYMBOL(cx88_ir_stop);
|
|
static int cx88_ir_open(struct rc_dev *rc)
|
{
|
struct cx88_core *core = rc->priv;
|
|
core->ir->users++;
|
return __cx88_ir_start(core);
|
}
|
|
static void cx88_ir_close(struct rc_dev *rc)
|
{
|
struct cx88_core *core = rc->priv;
|
|
core->ir->users--;
|
if (!core->ir->users)
|
__cx88_ir_stop(core);
|
}
|
|
/* ---------------------------------------------------------------------- */
|
|
int cx88_ir_init(struct cx88_core *core, struct pci_dev *pci)
|
{
|
struct cx88_IR *ir;
|
struct rc_dev *dev;
|
char *ir_codes = NULL;
|
u64 rc_proto = RC_PROTO_BIT_OTHER;
|
int err = -ENOMEM;
|
u32 hardware_mask = 0; /* For devices with a hardware mask, when
|
* used with a full-code IR table
|
*/
|
|
ir = kzalloc(sizeof(*ir), GFP_KERNEL);
|
dev = rc_allocate_device(RC_DRIVER_IR_RAW);
|
if (!ir || !dev)
|
goto err_out_free;
|
|
ir->dev = dev;
|
|
/* detect & configure */
|
switch (core->boardnr) {
|
case CX88_BOARD_DNTV_LIVE_DVB_T:
|
case CX88_BOARD_KWORLD_DVB_T:
|
case CX88_BOARD_KWORLD_DVB_T_CX22702:
|
ir_codes = RC_MAP_DNTV_LIVE_DVB_T;
|
ir->gpio_addr = MO_GP1_IO;
|
ir->mask_keycode = 0x1f;
|
ir->mask_keyup = 0x60;
|
ir->polling = 50; /* ms */
|
break;
|
case CX88_BOARD_TERRATEC_CINERGY_1400_DVB_T1:
|
ir_codes = RC_MAP_CINERGY_1400;
|
ir->sampling = 0xeb04; /* address */
|
break;
|
case CX88_BOARD_HAUPPAUGE:
|
case CX88_BOARD_HAUPPAUGE_DVB_T1:
|
case CX88_BOARD_HAUPPAUGE_NOVASE2_S1:
|
case CX88_BOARD_HAUPPAUGE_NOVASPLUS_S1:
|
case CX88_BOARD_HAUPPAUGE_HVR1100:
|
case CX88_BOARD_HAUPPAUGE_HVR3000:
|
case CX88_BOARD_HAUPPAUGE_HVR4000:
|
case CX88_BOARD_HAUPPAUGE_HVR4000LITE:
|
case CX88_BOARD_PCHDTV_HD3000:
|
case CX88_BOARD_PCHDTV_HD5500:
|
case CX88_BOARD_HAUPPAUGE_IRONLY:
|
ir_codes = RC_MAP_HAUPPAUGE;
|
ir->sampling = 1;
|
break;
|
case CX88_BOARD_WINFAST_DTV2000H:
|
case CX88_BOARD_WINFAST_DTV2000H_J:
|
case CX88_BOARD_WINFAST_DTV1800H:
|
case CX88_BOARD_WINFAST_DTV1800H_XC4000:
|
case CX88_BOARD_WINFAST_DTV2000H_PLUS:
|
ir_codes = RC_MAP_WINFAST;
|
ir->gpio_addr = MO_GP0_IO;
|
ir->mask_keycode = 0x8f8;
|
ir->mask_keyup = 0x100;
|
ir->polling = 50; /* ms */
|
break;
|
case CX88_BOARD_WINFAST2000XP_EXPERT:
|
case CX88_BOARD_WINFAST_DTV1000:
|
case CX88_BOARD_WINFAST_TV2000_XP_GLOBAL:
|
case CX88_BOARD_WINFAST_TV2000_XP_GLOBAL_6F36:
|
case CX88_BOARD_WINFAST_TV2000_XP_GLOBAL_6F43:
|
ir_codes = RC_MAP_WINFAST;
|
ir->gpio_addr = MO_GP0_IO;
|
ir->mask_keycode = 0x8f8;
|
ir->mask_keyup = 0x100;
|
ir->polling = 1; /* ms */
|
break;
|
case CX88_BOARD_IODATA_GVBCTV7E:
|
ir_codes = RC_MAP_IODATA_BCTV7E;
|
ir->gpio_addr = MO_GP0_IO;
|
ir->mask_keycode = 0xfd;
|
ir->mask_keydown = 0x02;
|
ir->polling = 5; /* ms */
|
break;
|
case CX88_BOARD_PROLINK_PLAYTVPVR:
|
case CX88_BOARD_PIXELVIEW_PLAYTV_ULTRA_PRO:
|
/*
|
* It seems that this hardware is paired with NEC extended
|
* address 0x866b. So, unfortunately, its usage with other
|
* IR's with different address won't work. Still, there are
|
* other IR's from the same manufacturer that works, like the
|
* 002-T mini RC, provided with newer PV hardware
|
*/
|
ir_codes = RC_MAP_PIXELVIEW_MK12;
|
rc_proto = RC_PROTO_BIT_NECX;
|
ir->gpio_addr = MO_GP1_IO;
|
ir->mask_keyup = 0x80;
|
ir->polling = 10; /* ms */
|
hardware_mask = 0x3f; /* Hardware returns only 6 bits from command part */
|
break;
|
case CX88_BOARD_PROLINK_PV_8000GT:
|
case CX88_BOARD_PROLINK_PV_GLOBAL_XTREME:
|
ir_codes = RC_MAP_PIXELVIEW_NEW;
|
ir->gpio_addr = MO_GP1_IO;
|
ir->mask_keycode = 0x3f;
|
ir->mask_keyup = 0x80;
|
ir->polling = 1; /* ms */
|
break;
|
case CX88_BOARD_KWORLD_LTV883:
|
ir_codes = RC_MAP_PIXELVIEW;
|
ir->gpio_addr = MO_GP1_IO;
|
ir->mask_keycode = 0x1f;
|
ir->mask_keyup = 0x60;
|
ir->polling = 1; /* ms */
|
break;
|
case CX88_BOARD_ADSTECH_DVB_T_PCI:
|
ir_codes = RC_MAP_ADSTECH_DVB_T_PCI;
|
ir->gpio_addr = MO_GP1_IO;
|
ir->mask_keycode = 0xbf;
|
ir->mask_keyup = 0x40;
|
ir->polling = 50; /* ms */
|
break;
|
case CX88_BOARD_MSI_TVANYWHERE_MASTER:
|
ir_codes = RC_MAP_MSI_TVANYWHERE;
|
ir->gpio_addr = MO_GP1_IO;
|
ir->mask_keycode = 0x1f;
|
ir->mask_keyup = 0x40;
|
ir->polling = 1; /* ms */
|
break;
|
case CX88_BOARD_AVERTV_303:
|
case CX88_BOARD_AVERTV_STUDIO_303:
|
ir_codes = RC_MAP_AVERTV_303;
|
ir->gpio_addr = MO_GP2_IO;
|
ir->mask_keycode = 0xfb;
|
ir->mask_keydown = 0x02;
|
ir->polling = 50; /* ms */
|
break;
|
case CX88_BOARD_OMICOM_SS4_PCI:
|
case CX88_BOARD_SATTRADE_ST4200:
|
case CX88_BOARD_TBS_8920:
|
case CX88_BOARD_TBS_8910:
|
case CX88_BOARD_PROF_7300:
|
case CX88_BOARD_PROF_7301:
|
case CX88_BOARD_PROF_6200:
|
ir_codes = RC_MAP_TBS_NEC;
|
ir->sampling = 0xff00; /* address */
|
break;
|
case CX88_BOARD_TEVII_S464:
|
case CX88_BOARD_TEVII_S460:
|
case CX88_BOARD_TEVII_S420:
|
ir_codes = RC_MAP_TEVII_NEC;
|
ir->sampling = 0xff00; /* address */
|
break;
|
case CX88_BOARD_DNTV_LIVE_DVB_T_PRO:
|
ir_codes = RC_MAP_DNTV_LIVE_DVBT_PRO;
|
ir->sampling = 0xff00; /* address */
|
break;
|
case CX88_BOARD_NORWOOD_MICRO:
|
ir_codes = RC_MAP_NORWOOD;
|
ir->gpio_addr = MO_GP1_IO;
|
ir->mask_keycode = 0x0e;
|
ir->mask_keyup = 0x80;
|
ir->polling = 50; /* ms */
|
break;
|
case CX88_BOARD_NPGTECH_REALTV_TOP10FM:
|
ir_codes = RC_MAP_NPGTECH;
|
ir->gpio_addr = MO_GP0_IO;
|
ir->mask_keycode = 0xfa;
|
ir->polling = 50; /* ms */
|
break;
|
case CX88_BOARD_PINNACLE_PCTV_HD_800i:
|
ir_codes = RC_MAP_PINNACLE_PCTV_HD;
|
ir->sampling = 1;
|
break;
|
case CX88_BOARD_POWERCOLOR_REAL_ANGEL:
|
ir_codes = RC_MAP_POWERCOLOR_REAL_ANGEL;
|
ir->gpio_addr = MO_GP2_IO;
|
ir->mask_keycode = 0x7e;
|
ir->polling = 100; /* ms */
|
break;
|
case CX88_BOARD_TWINHAN_VP1027_DVBS:
|
ir_codes = RC_MAP_TWINHAN_VP1027_DVBS;
|
ir->sampling = 0xff00; /* address */
|
break;
|
}
|
|
if (!ir_codes) {
|
err = -ENODEV;
|
goto err_out_free;
|
}
|
|
/*
|
* The usage of mask_keycode were very convenient, due to several
|
* reasons. Among others, the scancode tables were using the scancode
|
* as the index elements. So, the less bits it was used, the smaller
|
* the table were stored. After the input changes, the better is to use
|
* the full scancodes, since it allows replacing the IR remote by
|
* another one. Unfortunately, there are still some hardware, like
|
* Pixelview Ultra Pro, where only part of the scancode is sent via
|
* GPIO. So, there's no way to get the full scancode. Due to that,
|
* hardware_mask were introduced here: it represents those hardware
|
* that has such limits.
|
*/
|
if (hardware_mask && !ir->mask_keycode)
|
ir->mask_keycode = hardware_mask;
|
|
/* init input device */
|
snprintf(ir->name, sizeof(ir->name), "cx88 IR (%s)", core->board.name);
|
snprintf(ir->phys, sizeof(ir->phys), "pci-%s/ir0", pci_name(pci));
|
|
dev->device_name = ir->name;
|
dev->input_phys = ir->phys;
|
dev->input_id.bustype = BUS_PCI;
|
dev->input_id.version = 1;
|
if (pci->subsystem_vendor) {
|
dev->input_id.vendor = pci->subsystem_vendor;
|
dev->input_id.product = pci->subsystem_device;
|
} else {
|
dev->input_id.vendor = pci->vendor;
|
dev->input_id.product = pci->device;
|
}
|
dev->dev.parent = &pci->dev;
|
dev->map_name = ir_codes;
|
dev->driver_name = MODULE_NAME;
|
dev->priv = core;
|
dev->open = cx88_ir_open;
|
dev->close = cx88_ir_close;
|
dev->scancode_mask = hardware_mask;
|
|
if (ir->sampling) {
|
dev->timeout = MS_TO_US(10); /* 10 ms */
|
} else {
|
dev->driver_type = RC_DRIVER_SCANCODE;
|
dev->allowed_protocols = rc_proto;
|
}
|
|
ir->core = core;
|
core->ir = ir;
|
|
/* all done */
|
err = rc_register_device(dev);
|
if (err)
|
goto err_out_free;
|
|
return 0;
|
|
err_out_free:
|
rc_free_device(dev);
|
core->ir = NULL;
|
kfree(ir);
|
return err;
|
}
|
|
int cx88_ir_fini(struct cx88_core *core)
|
{
|
struct cx88_IR *ir = core->ir;
|
|
/* skip detach on non attached boards */
|
if (!ir)
|
return 0;
|
|
cx88_ir_stop(core);
|
rc_unregister_device(ir->dev);
|
kfree(ir);
|
|
/* done */
|
core->ir = NULL;
|
return 0;
|
}
|
|
/* ---------------------------------------------------------------------- */
|
|
void cx88_ir_irq(struct cx88_core *core)
|
{
|
struct cx88_IR *ir = core->ir;
|
u32 samples;
|
unsigned int todo, bits;
|
struct ir_raw_event ev = {};
|
|
if (!ir || !ir->sampling)
|
return;
|
|
/*
|
* Samples are stored in a 32 bit register, oldest sample in
|
* the msb. A set bit represents space and an unset bit
|
* represents a pulse.
|
*/
|
samples = cx_read(MO_SAMPLE_IO);
|
|
if (samples == 0xff && ir->dev->idle)
|
return;
|
|
for (todo = 32; todo > 0; todo -= bits) {
|
ev.pulse = samples & 0x80000000 ? false : true;
|
bits = min(todo, 32U - fls(ev.pulse ? samples : ~samples));
|
ev.duration = (bits * (USEC_PER_SEC / 1000)) / ir_samplerate;
|
ir_raw_event_store_with_filter(ir->dev, &ev);
|
samples <<= bits;
|
}
|
ir_raw_event_handle(ir->dev);
|
}
|
|
static int get_key_pvr2000(struct IR_i2c *ir, enum rc_proto *protocol,
|
u32 *scancode, u8 *toggle)
|
{
|
int flags, code;
|
|
/* poll IR chip */
|
flags = i2c_smbus_read_byte_data(ir->c, 0x10);
|
if (flags < 0) {
|
dprintk("read error\n");
|
return 0;
|
}
|
/* key pressed ? */
|
if (0 == (flags & 0x80))
|
return 0;
|
|
/* read actual key code */
|
code = i2c_smbus_read_byte_data(ir->c, 0x00);
|
if (code < 0) {
|
dprintk("read error\n");
|
return 0;
|
}
|
|
dprintk("IR Key/Flags: (0x%02x/0x%02x)\n",
|
code & 0xff, flags & 0xff);
|
|
*protocol = RC_PROTO_UNKNOWN;
|
*scancode = code & 0xff;
|
*toggle = 0;
|
return 1;
|
}
|
|
void cx88_i2c_init_ir(struct cx88_core *core)
|
{
|
struct i2c_board_info info;
|
static const unsigned short default_addr_list[] = {
|
0x18, 0x6b, 0x71,
|
I2C_CLIENT_END
|
};
|
static const unsigned short pvr2000_addr_list[] = {
|
0x18, 0x1a,
|
I2C_CLIENT_END
|
};
|
const unsigned short *addr_list = default_addr_list;
|
const unsigned short *addrp;
|
/* Instantiate the IR receiver device, if present */
|
if (core->i2c_rc != 0)
|
return;
|
|
memset(&info, 0, sizeof(struct i2c_board_info));
|
strscpy(info.type, "ir_video", I2C_NAME_SIZE);
|
|
switch (core->boardnr) {
|
case CX88_BOARD_LEADTEK_PVR2000:
|
addr_list = pvr2000_addr_list;
|
core->init_data.name = "cx88 Leadtek PVR 2000 remote";
|
core->init_data.type = RC_PROTO_BIT_UNKNOWN;
|
core->init_data.get_key = get_key_pvr2000;
|
core->init_data.ir_codes = RC_MAP_EMPTY;
|
break;
|
}
|
|
/*
|
* We can't call i2c_new_scanned_device() because it uses
|
* quick writes for probing and at least some RC receiver
|
* devices only reply to reads.
|
* Also, Hauppauge XVR needs to be specified, as address 0x71
|
* conflicts with another remote type used with saa7134
|
*/
|
for (addrp = addr_list; *addrp != I2C_CLIENT_END; addrp++) {
|
info.platform_data = NULL;
|
memset(&core->init_data, 0, sizeof(core->init_data));
|
|
if (*addrp == 0x71) {
|
/* Hauppauge Z8F0811 */
|
strscpy(info.type, "ir_z8f0811_haup", I2C_NAME_SIZE);
|
core->init_data.name = core->board.name;
|
core->init_data.ir_codes = RC_MAP_HAUPPAUGE;
|
core->init_data.type = RC_PROTO_BIT_RC5 |
|
RC_PROTO_BIT_RC6_MCE | RC_PROTO_BIT_RC6_6A_32;
|
core->init_data.internal_get_key_func = IR_KBD_GET_KEY_HAUP_XVR;
|
|
info.platform_data = &core->init_data;
|
}
|
if (i2c_smbus_xfer(&core->i2c_adap, *addrp, 0,
|
I2C_SMBUS_READ, 0,
|
I2C_SMBUS_QUICK, NULL) >= 0) {
|
info.addr = *addrp;
|
i2c_new_client_device(&core->i2c_adap, &info);
|
break;
|
}
|
}
|
}
|
|
/* ---------------------------------------------------------------------- */
|
|
MODULE_AUTHOR("Gerd Knorr, Pavel Machek, Chris Pascoe");
|
MODULE_DESCRIPTION("input driver for cx88 GPIO-based IR remote controls");
|
MODULE_LICENSE("GPL");
|
