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linux_old1/drivers/media/video/cx25840/cx25840-core.c

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/* cx25840 - Conexant CX25840 audio/video decoder driver
*
* Copyright (C) 2004 Ulf Eklund
*
* Based on the saa7115 driver and on the first verison of Chris Kennedy's
* cx25840 driver.
*
* Changes by Tyler Trafford <tatrafford@comcast.net>
* - cleanup/rewrite for V4L2 API (2005)
*
* VBI support by Hans Verkuil <hverkuil@xs4all.nl>.
*
* NTSC sliced VBI support by Christopher Neufeld <television@cneufeld.ca>
* with additional fixes by Hans Verkuil <hverkuil@xs4all.nl>.
*
* CX23885 support by Steven Toth <stoth@linuxtv.org>.
*
* 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/slab.h>
#include <linux/videodev2.h>
#include <linux/i2c.h>
#include <linux/delay.h>
#include <media/v4l2-common.h>
#include <media/v4l2-chip-ident.h>
#include <media/v4l2-i2c-drv-legacy.h>
#include <media/cx25840.h>
#include "cx25840-core.h"
MODULE_DESCRIPTION("Conexant CX25840 audio/video decoder driver");
MODULE_AUTHOR("Ulf Eklund, Chris Kennedy, Hans Verkuil, Tyler Trafford");
MODULE_LICENSE("GPL");
static unsigned short normal_i2c[] = { 0x88 >> 1, I2C_CLIENT_END };
static int cx25840_debug;
module_param_named(debug,cx25840_debug, int, 0644);
MODULE_PARM_DESC(debug, "Debugging messages [0=Off (default) 1=On]");
I2C_CLIENT_INSMOD;
/* ----------------------------------------------------------------------- */
int cx25840_write(struct i2c_client *client, u16 addr, u8 value)
{
u8 buffer[3];
buffer[0] = addr >> 8;
buffer[1] = addr & 0xff;
buffer[2] = value;
return i2c_master_send(client, buffer, 3);
}
int cx25840_write4(struct i2c_client *client, u16 addr, u32 value)
{
u8 buffer[6];
buffer[0] = addr >> 8;
buffer[1] = addr & 0xff;
buffer[2] = value & 0xff;
buffer[3] = (value >> 8) & 0xff;
buffer[4] = (value >> 16) & 0xff;
buffer[5] = value >> 24;
return i2c_master_send(client, buffer, 6);
}
u8 cx25840_read(struct i2c_client * client, u16 addr)
{
u8 buffer[2];
buffer[0] = addr >> 8;
buffer[1] = addr & 0xff;
if (i2c_master_send(client, buffer, 2) < 2)
return 0;
if (i2c_master_recv(client, buffer, 1) < 1)
return 0;
return buffer[0];
}
u32 cx25840_read4(struct i2c_client * client, u16 addr)
{
u8 buffer[4];
buffer[0] = addr >> 8;
buffer[1] = addr & 0xff;
if (i2c_master_send(client, buffer, 2) < 2)
return 0;
if (i2c_master_recv(client, buffer, 4) < 4)
return 0;
return (buffer[3] << 24) | (buffer[2] << 16) |
(buffer[1] << 8) | buffer[0];
}
int cx25840_and_or(struct i2c_client *client, u16 addr, unsigned and_mask,
u8 or_value)
{
return cx25840_write(client, addr,
(cx25840_read(client, addr) & and_mask) |
or_value);
}
/* ----------------------------------------------------------------------- */
static int set_input(struct i2c_client *client, enum cx25840_video_input vid_input,
enum cx25840_audio_input aud_input);
/* ----------------------------------------------------------------------- */
static void init_dll1(struct i2c_client *client)
{
/* This is the Hauppauge sequence used to
* initialize the Delay Lock Loop 1 (ADC DLL). */
cx25840_write(client, 0x159, 0x23);
cx25840_write(client, 0x15a, 0x87);
cx25840_write(client, 0x15b, 0x06);
udelay(10);
cx25840_write(client, 0x159, 0xe1);
udelay(10);
cx25840_write(client, 0x15a, 0x86);
cx25840_write(client, 0x159, 0xe0);
cx25840_write(client, 0x159, 0xe1);
cx25840_write(client, 0x15b, 0x10);
}
static void init_dll2(struct i2c_client *client)
{
/* This is the Hauppauge sequence used to
* initialize the Delay Lock Loop 2 (ADC DLL). */
cx25840_write(client, 0x15d, 0xe3);
cx25840_write(client, 0x15e, 0x86);
cx25840_write(client, 0x15f, 0x06);
udelay(10);
cx25840_write(client, 0x15d, 0xe1);
cx25840_write(client, 0x15d, 0xe0);
cx25840_write(client, 0x15d, 0xe1);
}
static void cx25836_initialize(struct i2c_client *client)
{
/* reset configuration is described on page 3-77 of the CX25836 datasheet */
/* 2. */
cx25840_and_or(client, 0x000, ~0x01, 0x01);
cx25840_and_or(client, 0x000, ~0x01, 0x00);
/* 3a. */
cx25840_and_or(client, 0x15a, ~0x70, 0x00);
/* 3b. */
cx25840_and_or(client, 0x15b, ~0x1e, 0x06);
/* 3c. */
cx25840_and_or(client, 0x159, ~0x02, 0x02);
/* 3d. */
udelay(10);
/* 3e. */
cx25840_and_or(client, 0x159, ~0x02, 0x00);
/* 3f. */
cx25840_and_or(client, 0x159, ~0xc0, 0xc0);
/* 3g. */
cx25840_and_or(client, 0x159, ~0x01, 0x00);
cx25840_and_or(client, 0x159, ~0x01, 0x01);
/* 3h. */
cx25840_and_or(client, 0x15b, ~0x1e, 0x10);
}
static void cx25840_work_handler(struct work_struct *work)
{
struct cx25840_state *state = container_of(work, struct cx25840_state, fw_work);
cx25840_loadfw(state->c);
wake_up(&state->fw_wait);
}
static void cx25840_initialize(struct i2c_client *client)
{
DEFINE_WAIT(wait);
struct cx25840_state *state = i2c_get_clientdata(client);
struct workqueue_struct *q;
/* datasheet startup in numbered steps, refer to page 3-77 */
/* 2. */
cx25840_and_or(client, 0x803, ~0x10, 0x00);
/* The default of this register should be 4, but I get 0 instead.
* Set this register to 4 manually. */
cx25840_write(client, 0x000, 0x04);
/* 3. */
init_dll1(client);
init_dll2(client);
cx25840_write(client, 0x136, 0x0a);
/* 4. */
cx25840_write(client, 0x13c, 0x01);
cx25840_write(client, 0x13c, 0x00);
/* 5. */
/* Do the firmware load in a work handler to prevent.
Otherwise the kernel is blocked waiting for the
bit-banging i2c interface to finish uploading the
firmware. */
INIT_WORK(&state->fw_work, cx25840_work_handler);
init_waitqueue_head(&state->fw_wait);
q = create_singlethread_workqueue("cx25840_fw");
prepare_to_wait(&state->fw_wait, &wait, TASK_UNINTERRUPTIBLE);
queue_work(q, &state->fw_work);
schedule();
finish_wait(&state->fw_wait, &wait);
destroy_workqueue(q);
/* 6. */
cx25840_write(client, 0x115, 0x8c);
cx25840_write(client, 0x116, 0x07);
cx25840_write(client, 0x118, 0x02);
/* 7. */
cx25840_write(client, 0x4a5, 0x80);
cx25840_write(client, 0x4a5, 0x00);
cx25840_write(client, 0x402, 0x00);
/* 8. */
cx25840_and_or(client, 0x401, ~0x18, 0);
cx25840_and_or(client, 0x4a2, ~0x10, 0x10);
/* steps 8c and 8d are done in change_input() */
/* 10. */
cx25840_write(client, 0x8d3, 0x1f);
cx25840_write(client, 0x8e3, 0x03);
cx25840_std_setup(client);
/* trial and error says these are needed to get audio */
cx25840_write(client, 0x914, 0xa0);
cx25840_write(client, 0x918, 0xa0);
cx25840_write(client, 0x919, 0x01);
/* stereo prefered */
cx25840_write(client, 0x809, 0x04);
/* AC97 shift */
cx25840_write(client, 0x8cf, 0x0f);
/* (re)set input */
set_input(client, state->vid_input, state->aud_input);
/* start microcontroller */
cx25840_and_or(client, 0x803, ~0x10, 0x10);
}
static void cx23885_initialize(struct i2c_client *client)
{
DEFINE_WAIT(wait);
struct cx25840_state *state = i2c_get_clientdata(client);
struct workqueue_struct *q;
/* Internal Reset */
cx25840_and_or(client, 0x102, ~0x01, 0x01);
cx25840_and_or(client, 0x102, ~0x01, 0x00);
/* Stop microcontroller */
cx25840_and_or(client, 0x803, ~0x10, 0x00);
/* DIF in reset? */
cx25840_write(client, 0x398, 0);
/* Trust the default xtal, no division */
/* This changes for the cx23888 products */
cx25840_write(client, 0x2, 0x76);
/* Bring down the regulator for AUX clk */
cx25840_write(client, 0x1, 0x40);
/* Sys PLL frac */
cx25840_write4(client, 0x11c, 0x01d1744c);
/* Sys PLL int */
cx25840_write4(client, 0x118, 0x00000416);
/* Disable DIF bypass */
cx25840_write4(client, 0x33c, 0x00000001);
/* DIF Src phase inc */
cx25840_write4(client, 0x340, 0x0df7df83);
/* Vid PLL frac */
cx25840_write4(client, 0x10c, 0x01b6db7b);
/* Vid PLL int */
cx25840_write4(client, 0x108, 0x00000512);
/* Luma */
cx25840_write4(client, 0x414, 0x00107d12);
/* Chroma */
cx25840_write4(client, 0x420, 0x3d008282);
/* Aux PLL frac */
cx25840_write4(client, 0x114, 0x017dbf48);
/* Aux PLL int */
cx25840_write4(client, 0x110, 0x000a030e);
/* ADC2 input select */
cx25840_write(client, 0x102, 0x10);
/* VIN1 & VIN5 */
cx25840_write(client, 0x103, 0x11);
/* Enable format auto detect */
cx25840_write(client, 0x400, 0);
/* Fast subchroma lock */
/* White crush, Chroma AGC & Chroma Killer enabled */
cx25840_write(client, 0x401, 0xe8);
/* Select AFE clock pad output source */
cx25840_write(client, 0x144, 0x05);
/* Do the firmware load in a work handler to prevent.
Otherwise the kernel is blocked waiting for the
bit-banging i2c interface to finish uploading the
firmware. */
INIT_WORK(&state->fw_work, cx25840_work_handler);
init_waitqueue_head(&state->fw_wait);
q = create_singlethread_workqueue("cx25840_fw");
prepare_to_wait(&state->fw_wait, &wait, TASK_UNINTERRUPTIBLE);
queue_work(q, &state->fw_work);
schedule();
finish_wait(&state->fw_wait, &wait);
destroy_workqueue(q);
cx25840_std_setup(client);
/* (re)set input */
set_input(client, state->vid_input, state->aud_input);
/* start microcontroller */
cx25840_and_or(client, 0x803, ~0x10, 0x10);
}
/* ----------------------------------------------------------------------- */
void cx25840_std_setup(struct i2c_client *client)
{
struct cx25840_state *state = i2c_get_clientdata(client);
v4l2_std_id std = state->std;
int hblank, hactive, burst, vblank, vactive, sc;
int vblank656, src_decimation;
int luma_lpf, uv_lpf, comb;
u32 pll_int, pll_frac, pll_post;
/* datasheet startup, step 8d */
if (std & ~V4L2_STD_NTSC)
cx25840_write(client, 0x49f, 0x11);
else
cx25840_write(client, 0x49f, 0x14);
if (std & V4L2_STD_625_50) {
hblank = 132;
hactive = 720;
burst = 93;
vblank = 36;
vactive = 580;
vblank656 = 40;
src_decimation = 0x21f;
luma_lpf = 2;
if (std & V4L2_STD_SECAM) {
uv_lpf = 0;
comb = 0;
sc = 0x0a425f;
} else if (std == V4L2_STD_PAL_Nc) {
uv_lpf = 1;
comb = 0x20;
sc = 556453;
} else {
uv_lpf = 1;
comb = 0x20;
sc = 688739;
}
} else {
hactive = 720;
hblank = 122;
vactive = 487;
luma_lpf = 1;
uv_lpf = 1;
src_decimation = 0x21f;
if (std == V4L2_STD_PAL_60) {
vblank = 26;
vblank656 = 26;
burst = 0x5b;
luma_lpf = 2;
comb = 0x20;
sc = 688739;
} else if (std == V4L2_STD_PAL_M) {
vblank = 20;
vblank656 = 24;
burst = 0x61;
comb = 0x20;
sc = 555452;
} else {
vblank = 26;
vblank656 = 26;
burst = 0x5b;
comb = 0x66;
sc = 556063;
}
}
/* DEBUG: Displays configured PLL frequency */
pll_int = cx25840_read(client, 0x108);
pll_frac = cx25840_read4(client, 0x10c) & 0x1ffffff;
pll_post = cx25840_read(client, 0x109);
v4l_dbg(1, cx25840_debug, client,
"PLL regs = int: %u, frac: %u, post: %u\n",
pll_int, pll_frac, pll_post);
if (pll_post) {
int fin, fsc;
int pll = (28636363L * ((((u64)pll_int) << 25L) + pll_frac)) >> 25L;
pll /= pll_post;
v4l_dbg(1, cx25840_debug, client, "PLL = %d.%06d MHz\n",
pll / 1000000, pll % 1000000);
v4l_dbg(1, cx25840_debug, client, "PLL/8 = %d.%06d MHz\n",
pll / 8000000, (pll / 8) % 1000000);
fin = ((u64)src_decimation * pll) >> 12;
v4l_dbg(1, cx25840_debug, client,
"ADC Sampling freq = %d.%06d MHz\n",
fin / 1000000, fin % 1000000);
fsc = (((u64)sc) * pll) >> 24L;
v4l_dbg(1, cx25840_debug, client,
"Chroma sub-carrier freq = %d.%06d MHz\n",
fsc / 1000000, fsc % 1000000);
v4l_dbg(1, cx25840_debug, client, "hblank %i, hactive %i, "
"vblank %i, vactive %i, vblank656 %i, src_dec %i, "
"burst 0x%02x, luma_lpf %i, uv_lpf %i, comb 0x%02x, "
"sc 0x%06x\n",
hblank, hactive, vblank, vactive, vblank656,
src_decimation, burst, luma_lpf, uv_lpf, comb, sc);
}
/* Sets horizontal blanking delay and active lines */
cx25840_write(client, 0x470, hblank);
cx25840_write(client, 0x471,
0xff & (((hblank >> 8) & 0x3) | (hactive << 4)));
cx25840_write(client, 0x472, hactive >> 4);
/* Sets burst gate delay */
cx25840_write(client, 0x473, burst);
/* Sets vertical blanking delay and active duration */
cx25840_write(client, 0x474, vblank);
cx25840_write(client, 0x475,
0xff & (((vblank >> 8) & 0x3) | (vactive << 4)));
cx25840_write(client, 0x476, vactive >> 4);
cx25840_write(client, 0x477, vblank656);
/* Sets src decimation rate */
cx25840_write(client, 0x478, 0xff & src_decimation);
cx25840_write(client, 0x479, 0xff & (src_decimation >> 8));
/* Sets Luma and UV Low pass filters */
cx25840_write(client, 0x47a, luma_lpf << 6 | ((uv_lpf << 4) & 0x30));
/* Enables comb filters */
cx25840_write(client, 0x47b, comb);
/* Sets SC Step*/
cx25840_write(client, 0x47c, sc);
cx25840_write(client, 0x47d, 0xff & sc >> 8);
cx25840_write(client, 0x47e, 0xff & sc >> 16);
/* Sets VBI parameters */
if (std & V4L2_STD_625_50) {
cx25840_write(client, 0x47f, 0x01);
state->vbi_line_offset = 5;
} else {
cx25840_write(client, 0x47f, 0x00);
state->vbi_line_offset = 8;
}
}
/* ----------------------------------------------------------------------- */
static void input_change(struct i2c_client *client)
{
struct cx25840_state *state = i2c_get_clientdata(client);
v4l2_std_id std = state->std;
/* Follow step 8c and 8d of section 3.16 in the cx25840 datasheet */
if (std & V4L2_STD_SECAM) {
cx25840_write(client, 0x402, 0);
}
else {
cx25840_write(client, 0x402, 0x04);
cx25840_write(client, 0x49f, (std & V4L2_STD_NTSC) ? 0x14 : 0x11);
}
cx25840_and_or(client, 0x401, ~0x60, 0);
cx25840_and_or(client, 0x401, ~0x60, 0x60);
cx25840_and_or(client, 0x810, ~0x01, 1);
if (state->radio) {
cx25840_write(client, 0x808, 0xf9);
cx25840_write(client, 0x80b, 0x00);
}
else if (std & V4L2_STD_525_60) {
/* Certain Hauppauge PVR150 models have a hardware bug
that causes audio to drop out. For these models the
audio standard must be set explicitly.
To be precise: it affects cards with tuner models
85, 99 and 112 (model numbers from tveeprom). */
int hw_fix = state->pvr150_workaround;
if (std == V4L2_STD_NTSC_M_JP) {
/* Japan uses EIAJ audio standard */
cx25840_write(client, 0x808, hw_fix ? 0x2f : 0xf7);
} else if (std == V4L2_STD_NTSC_M_KR) {
/* South Korea uses A2 audio standard */
cx25840_write(client, 0x808, hw_fix ? 0x3f : 0xf8);
} else {
/* Others use the BTSC audio standard */
cx25840_write(client, 0x808, hw_fix ? 0x1f : 0xf6);
}
cx25840_write(client, 0x80b, 0x00);
} else if (std & V4L2_STD_PAL) {
/* Follow tuner change procedure for PAL */
cx25840_write(client, 0x808, 0xff);
cx25840_write(client, 0x80b, 0x10);
} else if (std & V4L2_STD_SECAM) {
/* Select autodetect for SECAM */
cx25840_write(client, 0x808, 0xff);
cx25840_write(client, 0x80b, 0x10);
}
cx25840_and_or(client, 0x810, ~0x01, 0);
}
static int set_input(struct i2c_client *client, enum cx25840_video_input vid_input,
enum cx25840_audio_input aud_input)
{
struct cx25840_state *state = i2c_get_clientdata(client);
u8 is_composite = (vid_input >= CX25840_COMPOSITE1 &&
vid_input <= CX25840_COMPOSITE8);
u8 reg;
v4l_dbg(1, cx25840_debug, client,
"decoder set video input %d, audio input %d\n",
vid_input, aud_input);
if (vid_input >= CX25840_VIN1_CH1) {
v4l_dbg(1, cx25840_debug, client, "vid_input 0x%x\n",
vid_input);
reg = vid_input & 0xff;
if ((vid_input & CX25840_SVIDEO_ON) == CX25840_SVIDEO_ON)
is_composite = 0;
else
is_composite = 1;
v4l_dbg(1, cx25840_debug, client, "mux cfg 0x%x comp=%d\n",
reg, is_composite);
} else
if (is_composite) {
reg = 0xf0 + (vid_input - CX25840_COMPOSITE1);
} else {
int luma = vid_input & 0xf0;
int chroma = vid_input & 0xf00;
if ((vid_input & ~0xff0) ||
luma < CX25840_SVIDEO_LUMA1 || luma > CX25840_SVIDEO_LUMA8 ||
chroma < CX25840_SVIDEO_CHROMA4 || chroma > CX25840_SVIDEO_CHROMA8) {
v4l_err(client, "0x%04x is not a valid video input!\n",
vid_input);
return -EINVAL;
}
reg = 0xf0 + ((luma - CX25840_SVIDEO_LUMA1) >> 4);
if (chroma >= CX25840_SVIDEO_CHROMA7) {
reg &= 0x3f;
reg |= (chroma - CX25840_SVIDEO_CHROMA7) >> 2;
} else {
reg &= 0xcf;
reg |= (chroma - CX25840_SVIDEO_CHROMA4) >> 4;
}
}
/* The caller has previously prepared the correct routing
* configuration in reg (for the cx23885) so we have no
* need to attempt to flip bits for earlier av decoders.
*/
if (!state->is_cx23885) {
switch (aud_input) {
case CX25840_AUDIO_SERIAL:
/* do nothing, use serial audio input */
break;
case CX25840_AUDIO4: reg &= ~0x30; break;
case CX25840_AUDIO5: reg &= ~0x30; reg |= 0x10; break;
case CX25840_AUDIO6: reg &= ~0x30; reg |= 0x20; break;
case CX25840_AUDIO7: reg &= ~0xc0; break;
case CX25840_AUDIO8: reg &= ~0xc0; reg |= 0x40; break;
default:
v4l_err(client, "0x%04x is not a valid audio input!\n",
aud_input);
return -EINVAL;
}
}
cx25840_write(client, 0x103, reg);
/* Set INPUT_MODE to Composite (0) or S-Video (1) */
cx25840_and_or(client, 0x401, ~0x6, is_composite ? 0 : 0x02);
if (!state->is_cx23885) {
/* Set CH_SEL_ADC2 to 1 if input comes from CH3 */
cx25840_and_or(client, 0x102, ~0x2, (reg & 0x80) == 0 ? 2 : 0);
/* Set DUAL_MODE_ADC2 to 1 if input comes from both CH2&CH3 */
if ((reg & 0xc0) != 0xc0 && (reg & 0x30) != 0x30)
cx25840_and_or(client, 0x102, ~0x4, 4);
else
cx25840_and_or(client, 0x102, ~0x4, 0);
} else {
if (is_composite)
/* ADC2 input select channel 2 */
cx25840_and_or(client, 0x102, ~0x2, 0);
else
/* ADC2 input select channel 3 */
cx25840_and_or(client, 0x102, ~0x2, 2);
}
state->vid_input = vid_input;
state->aud_input = aud_input;
if (!state->is_cx25836) {
cx25840_audio_set_path(client);
input_change(client);
}
if (state->is_cx23885) {
/* Audio channel 1 src : Parallel 1 */
cx25840_write(client, 0x124, 0x03);
/* Select AFE clock pad output source */
cx25840_write(client, 0x144, 0x05);
/* I2S_IN_CTL: I2S_IN_SONY_MODE, LEFT SAMPLE on WS=1 */
cx25840_write(client, 0x914, 0xa0);
/* I2S_OUT_CTL:
* I2S_IN_SONY_MODE, LEFT SAMPLE on WS=1
* I2S_OUT_MASTER_MODE = Master
*/
cx25840_write(client, 0x918, 0xa0);
cx25840_write(client, 0x919, 0x01);
}
return 0;
}
/* ----------------------------------------------------------------------- */
static int set_v4lstd(struct i2c_client *client)
{
struct cx25840_state *state = i2c_get_clientdata(client);
u8 fmt = 0; /* zero is autodetect */
u8 pal_m = 0;
/* First tests should be against specific std */
if (state->std == V4L2_STD_NTSC_M_JP) {
fmt = 0x2;
} else if (state->std == V4L2_STD_NTSC_443) {
fmt = 0x3;
} else if (state->std == V4L2_STD_PAL_M) {
pal_m = 1;
fmt = 0x5;
} else if (state->std == V4L2_STD_PAL_N) {
fmt = 0x6;
} else if (state->std == V4L2_STD_PAL_Nc) {
fmt = 0x7;
} else if (state->std == V4L2_STD_PAL_60) {
fmt = 0x8;
} else {
/* Then, test against generic ones */
if (state->std & V4L2_STD_NTSC)
fmt = 0x1;
else if (state->std & V4L2_STD_PAL)
fmt = 0x4;
else if (state->std & V4L2_STD_SECAM)
fmt = 0xc;
}
v4l_dbg(1, cx25840_debug, client, "changing video std to fmt %i\n",fmt);
/* Follow step 9 of section 3.16 in the cx25840 datasheet.
Without this PAL may display a vertical ghosting effect.
This happens for example with the Yuan MPC622. */
if (fmt >= 4 && fmt < 8) {
/* Set format to NTSC-M */
cx25840_and_or(client, 0x400, ~0xf, 1);
/* Turn off LCOMB */
cx25840_and_or(client, 0x47b, ~6, 0);
}
cx25840_and_or(client, 0x400, ~0xf, fmt);
cx25840_and_or(client, 0x403, ~0x3, pal_m);
cx25840_std_setup(client);
if (!state->is_cx25836)
input_change(client);
return 0;
}
/* ----------------------------------------------------------------------- */
static int set_v4lctrl(struct i2c_client *client, struct v4l2_control *ctrl)
{
struct cx25840_state *state = i2c_get_clientdata(client);
switch (ctrl->id) {
case CX25840_CID_ENABLE_PVR150_WORKAROUND:
state->pvr150_workaround = ctrl->value;
set_input(client, state->vid_input, state->aud_input);
break;
case V4L2_CID_BRIGHTNESS:
if (ctrl->value < 0 || ctrl->value > 255) {
v4l_err(client, "invalid brightness setting %d\n",
ctrl->value);
return -ERANGE;
}
cx25840_write(client, 0x414, ctrl->value - 128);
break;
case V4L2_CID_CONTRAST:
if (ctrl->value < 0 || ctrl->value > 127) {
v4l_err(client, "invalid contrast setting %d\n",
ctrl->value);
return -ERANGE;
}
cx25840_write(client, 0x415, ctrl->value << 1);
break;
case V4L2_CID_SATURATION:
if (ctrl->value < 0 || ctrl->value > 127) {
v4l_err(client, "invalid saturation setting %d\n",
ctrl->value);
return -ERANGE;
}
cx25840_write(client, 0x420, ctrl->value << 1);
cx25840_write(client, 0x421, ctrl->value << 1);
break;
case V4L2_CID_HUE:
if (ctrl->value < -127 || ctrl->value > 127) {
v4l_err(client, "invalid hue setting %d\n", ctrl->value);
return -ERANGE;
}
cx25840_write(client, 0x422, ctrl->value);
break;
case V4L2_CID_AUDIO_VOLUME:
case V4L2_CID_AUDIO_BASS:
case V4L2_CID_AUDIO_TREBLE:
case V4L2_CID_AUDIO_BALANCE:
case V4L2_CID_AUDIO_MUTE:
if (state->is_cx25836)
return -EINVAL;
return cx25840_audio(client, VIDIOC_S_CTRL, ctrl);
default:
return -EINVAL;
}
return 0;
}
static int get_v4lctrl(struct i2c_client *client, struct v4l2_control *ctrl)
{
struct cx25840_state *state = i2c_get_clientdata(client);
switch (ctrl->id) {
case CX25840_CID_ENABLE_PVR150_WORKAROUND:
ctrl->value = state->pvr150_workaround;
break;
case V4L2_CID_BRIGHTNESS:
ctrl->value = (s8)cx25840_read(client, 0x414) + 128;
break;
case V4L2_CID_CONTRAST:
ctrl->value = cx25840_read(client, 0x415) >> 1;
break;
case V4L2_CID_SATURATION:
ctrl->value = cx25840_read(client, 0x420) >> 1;
break;
case V4L2_CID_HUE:
ctrl->value = (s8)cx25840_read(client, 0x422);
break;
case V4L2_CID_AUDIO_VOLUME:
case V4L2_CID_AUDIO_BASS:
case V4L2_CID_AUDIO_TREBLE:
case V4L2_CID_AUDIO_BALANCE:
case V4L2_CID_AUDIO_MUTE:
if (state->is_cx25836)
return -EINVAL;
return cx25840_audio(client, VIDIOC_G_CTRL, ctrl);
default:
return -EINVAL;
}
return 0;
}
/* ----------------------------------------------------------------------- */
static int get_v4lfmt(struct i2c_client *client, struct v4l2_format *fmt)
{
switch (fmt->type) {
case V4L2_BUF_TYPE_SLICED_VBI_CAPTURE:
return cx25840_vbi(client, VIDIOC_G_FMT, fmt);
default:
return -EINVAL;
}
return 0;
}
static int set_v4lfmt(struct i2c_client *client, struct v4l2_format *fmt)
{
struct cx25840_state *state = i2c_get_clientdata(client);
struct v4l2_pix_format *pix;
int HSC, VSC, Vsrc, Hsrc, filter, Vlines;
int is_50Hz = !(state->std & V4L2_STD_525_60);
switch (fmt->type) {
case V4L2_BUF_TYPE_VIDEO_CAPTURE:
pix = &(fmt->fmt.pix);
Vsrc = (cx25840_read(client, 0x476) & 0x3f) << 4;
Vsrc |= (cx25840_read(client, 0x475) & 0xf0) >> 4;
Hsrc = (cx25840_read(client, 0x472) & 0x3f) << 4;
Hsrc |= (cx25840_read(client, 0x471) & 0xf0) >> 4;
Vlines = pix->height + (is_50Hz ? 4 : 7);
if ((pix->width * 16 < Hsrc) || (Hsrc < pix->width) ||
(Vlines * 8 < Vsrc) || (Vsrc < Vlines)) {
v4l_err(client, "%dx%d is not a valid size!\n",
pix->width, pix->height);
return -ERANGE;
}
HSC = (Hsrc * (1 << 20)) / pix->width - (1 << 20);
VSC = (1 << 16) - (Vsrc * (1 << 9) / Vlines - (1 << 9));
VSC &= 0x1fff;
if (pix->width >= 385)
filter = 0;
else if (pix->width > 192)
filter = 1;
else if (pix->width > 96)
filter = 2;
else
filter = 3;
v4l_dbg(1, cx25840_debug, client, "decoder set size %dx%d -> scale %ux%u\n",
pix->width, pix->height, HSC, VSC);
/* HSCALE=HSC */
cx25840_write(client, 0x418, HSC & 0xff);
cx25840_write(client, 0x419, (HSC >> 8) & 0xff);
cx25840_write(client, 0x41a, HSC >> 16);
/* VSCALE=VSC */
cx25840_write(client, 0x41c, VSC & 0xff);
cx25840_write(client, 0x41d, VSC >> 8);
/* VS_INTRLACE=1 VFILT=filter */
cx25840_write(client, 0x41e, 0x8 | filter);
break;
case V4L2_BUF_TYPE_SLICED_VBI_CAPTURE:
return cx25840_vbi(client, VIDIOC_S_FMT, fmt);
case V4L2_BUF_TYPE_VBI_CAPTURE:
return cx25840_vbi(client, VIDIOC_S_FMT, fmt);
default:
return -EINVAL;
}
return 0;
}
/* ----------------------------------------------------------------------- */
static void log_video_status(struct i2c_client *client)
{
static const char *const fmt_strs[] = {
"0x0",
"NTSC-M", "NTSC-J", "NTSC-4.43",
"PAL-BDGHI", "PAL-M", "PAL-N", "PAL-Nc", "PAL-60",
"0x9", "0xA", "0xB",
"SECAM",
"0xD", "0xE", "0xF"
};
struct cx25840_state *state = i2c_get_clientdata(client);
u8 vidfmt_sel = cx25840_read(client, 0x400) & 0xf;
u8 gen_stat1 = cx25840_read(client, 0x40d);
u8 gen_stat2 = cx25840_read(client, 0x40e);
int vid_input = state->vid_input;
v4l_info(client, "Video signal: %spresent\n",
(gen_stat2 & 0x20) ? "" : "not ");
v4l_info(client, "Detected format: %s\n",
fmt_strs[gen_stat1 & 0xf]);
v4l_info(client, "Specified standard: %s\n",
vidfmt_sel ? fmt_strs[vidfmt_sel] : "automatic detection");
if (vid_input >= CX25840_COMPOSITE1 &&
vid_input <= CX25840_COMPOSITE8) {
v4l_info(client, "Specified video input: Composite %d\n",
vid_input - CX25840_COMPOSITE1 + 1);
} else {
v4l_info(client, "Specified video input: S-Video (Luma In%d, Chroma In%d)\n",
(vid_input & 0xf0) >> 4, (vid_input & 0xf00) >> 8);
}
v4l_info(client, "Specified audioclock freq: %d Hz\n", state->audclk_freq);
}
/* ----------------------------------------------------------------------- */
static void log_audio_status(struct i2c_client *client)
{
struct cx25840_state *state = i2c_get_clientdata(client);
u8 download_ctl = cx25840_read(client, 0x803);
u8 mod_det_stat0 = cx25840_read(client, 0x804);
u8 mod_det_stat1 = cx25840_read(client, 0x805);
u8 audio_config = cx25840_read(client, 0x808);
u8 pref_mode = cx25840_read(client, 0x809);
u8 afc0 = cx25840_read(client, 0x80b);
u8 mute_ctl = cx25840_read(client, 0x8d3);
int aud_input = state->aud_input;
char *p;
switch (mod_det_stat0) {
case 0x00: p = "mono"; break;
case 0x01: p = "stereo"; break;
case 0x02: p = "dual"; break;
case 0x04: p = "tri"; break;
case 0x10: p = "mono with SAP"; break;
case 0x11: p = "stereo with SAP"; break;
case 0x12: p = "dual with SAP"; break;
case 0x14: p = "tri with SAP"; break;
case 0xfe: p = "forced mode"; break;
default: p = "not defined";
}
v4l_info(client, "Detected audio mode: %s\n", p);
switch (mod_det_stat1) {
case 0x00: p = "not defined"; break;
case 0x01: p = "EIAJ"; break;
case 0x02: p = "A2-M"; break;
case 0x03: p = "A2-BG"; break;
case 0x04: p = "A2-DK1"; break;
case 0x05: p = "A2-DK2"; break;
case 0x06: p = "A2-DK3"; break;
case 0x07: p = "A1 (6.0 MHz FM Mono)"; break;
case 0x08: p = "AM-L"; break;
case 0x09: p = "NICAM-BG"; break;
case 0x0a: p = "NICAM-DK"; break;
case 0x0b: p = "NICAM-I"; break;
case 0x0c: p = "NICAM-L"; break;
case 0x0d: p = "BTSC/EIAJ/A2-M Mono (4.5 MHz FMMono)"; break;
case 0x0e: p = "IF FM Radio"; break;
case 0x0f: p = "BTSC"; break;
case 0x10: p = "high-deviation FM"; break;
case 0x11: p = "very high-deviation FM"; break;
case 0xfd: p = "unknown audio standard"; break;
case 0xfe: p = "forced audio standard"; break;
case 0xff: p = "no detected audio standard"; break;
default: p = "not defined";
}
v4l_info(client, "Detected audio standard: %s\n", p);
v4l_info(client, "Audio muted: %s\n",
(state->unmute_volume >= 0) ? "yes" : "no");
v4l_info(client, "Audio microcontroller: %s\n",
(download_ctl & 0x10) ?
((mute_ctl & 0x2) ? "detecting" : "running") : "stopped");
switch (audio_config >> 4) {
case 0x00: p = "undefined"; break;
case 0x01: p = "BTSC"; break;
case 0x02: p = "EIAJ"; break;
case 0x03: p = "A2-M"; break;
case 0x04: p = "A2-BG"; break;
case 0x05: p = "A2-DK1"; break;
case 0x06: p = "A2-DK2"; break;
case 0x07: p = "A2-DK3"; break;
case 0x08: p = "A1 (6.0 MHz FM Mono)"; break;
case 0x09: p = "AM-L"; break;
case 0x0a: p = "NICAM-BG"; break;
case 0x0b: p = "NICAM-DK"; break;
case 0x0c: p = "NICAM-I"; break;
case 0x0d: p = "NICAM-L"; break;
case 0x0e: p = "FM radio"; break;
case 0x0f: p = "automatic detection"; break;
default: p = "undefined";
}
v4l_info(client, "Configured audio standard: %s\n", p);
if ((audio_config >> 4) < 0xF) {
switch (audio_config & 0xF) {
case 0x00: p = "MONO1 (LANGUAGE A/Mono L+R channel for BTSC, EIAJ, A2)"; break;
case 0x01: p = "MONO2 (LANGUAGE B)"; break;
case 0x02: p = "MONO3 (STEREO forced MONO)"; break;
case 0x03: p = "MONO4 (NICAM ANALOG-Language C/Analog Fallback)"; break;
case 0x04: p = "STEREO"; break;
case 0x05: p = "DUAL1 (AB)"; break;
case 0x06: p = "DUAL2 (AC) (FM)"; break;
case 0x07: p = "DUAL3 (BC) (FM)"; break;
case 0x08: p = "DUAL4 (AC) (AM)"; break;
case 0x09: p = "DUAL5 (BC) (AM)"; break;
case 0x0a: p = "SAP"; break;
default: p = "undefined";
}
v4l_info(client, "Configured audio mode: %s\n", p);
} else {
switch (audio_config & 0xF) {
case 0x00: p = "BG"; break;
case 0x01: p = "DK1"; break;
case 0x02: p = "DK2"; break;
case 0x03: p = "DK3"; break;
case 0x04: p = "I"; break;
case 0x05: p = "L"; break;
case 0x06: p = "BTSC"; break;
case 0x07: p = "EIAJ"; break;
case 0x08: p = "A2-M"; break;
case 0x09: p = "FM Radio"; break;
case 0x0f: p = "automatic standard and mode detection"; break;
default: p = "undefined";
}
v4l_info(client, "Configured audio system: %s\n", p);
}
if (aud_input) {
v4l_info(client, "Specified audio input: Tuner (In%d)\n", aud_input);
} else {
v4l_info(client, "Specified audio input: External\n");
}
switch (pref_mode & 0xf) {
case 0: p = "mono/language A"; break;
case 1: p = "language B"; break;
case 2: p = "language C"; break;
case 3: p = "analog fallback"; break;
case 4: p = "stereo"; break;
case 5: p = "language AC"; break;
case 6: p = "language BC"; break;
case 7: p = "language AB"; break;
default: p = "undefined";
}
v4l_info(client, "Preferred audio mode: %s\n", p);
if ((audio_config & 0xf) == 0xf) {
switch ((afc0 >> 3) & 0x3) {
case 0: p = "system DK"; break;
case 1: p = "system L"; break;
case 2: p = "autodetect"; break;
default: p = "undefined";
}
v4l_info(client, "Selected 65 MHz format: %s\n", p);
switch (afc0 & 0x7) {
case 0: p = "chroma"; break;
case 1: p = "BTSC"; break;
case 2: p = "EIAJ"; break;
case 3: p = "A2-M"; break;
case 4: p = "autodetect"; break;
default: p = "undefined";
}
v4l_info(client, "Selected 45 MHz format: %s\n", p);
}
}
/* ----------------------------------------------------------------------- */
static int cx25840_command(struct i2c_client *client, unsigned int cmd,
void *arg)
{
struct cx25840_state *state = i2c_get_clientdata(client);
struct v4l2_tuner *vt = arg;
struct v4l2_routing *route = arg;
/* ignore these commands */
switch (cmd) {
case TUNER_SET_TYPE_ADDR:
return 0;
}
if (!state->is_initialized) {
v4l_dbg(1, cx25840_debug, client, "cmd %08x triggered fw load\n", cmd);
/* initialize on first use */
state->is_initialized = 1;
if (state->is_cx25836)
cx25836_initialize(client);
else if (state->is_cx23885)
cx23885_initialize(client);
else
cx25840_initialize(client);
}
switch (cmd) {
#ifdef CONFIG_VIDEO_ADV_DEBUG
/* ioctls to allow direct access to the
* cx25840 registers for testing */
case VIDIOC_DBG_G_REGISTER:
case VIDIOC_DBG_S_REGISTER:
{
struct v4l2_register *reg = arg;
if (!v4l2_chip_match_i2c_client(client, reg->match_type, reg->match_chip))
return -EINVAL;
if (!capable(CAP_SYS_ADMIN))
return -EPERM;
if (cmd == VIDIOC_DBG_G_REGISTER)
reg->val = cx25840_read(client, reg->reg & 0x0fff);
else
cx25840_write(client, reg->reg & 0x0fff, reg->val & 0xff);
break;
}
#endif
case VIDIOC_INT_DECODE_VBI_LINE:
return cx25840_vbi(client, cmd, arg);
case VIDIOC_INT_AUDIO_CLOCK_FREQ:
return cx25840_audio(client, cmd, arg);
case VIDIOC_STREAMON:
v4l_dbg(1, cx25840_debug, client, "enable output\n");
if (state->is_cx23885) {
u8 v = (cx25840_read(client, 0x421) | 0x0b);
cx25840_write(client, 0x421, v);
} else {
cx25840_write(client, 0x115,
state->is_cx25836 ? 0x0c : 0x8c);
cx25840_write(client, 0x116,
state->is_cx25836 ? 0x04 : 0x07);
}
break;
case VIDIOC_STREAMOFF:
v4l_dbg(1, cx25840_debug, client, "disable output\n");
if (state->is_cx23885) {
u8 v = cx25840_read(client, 0x421) & ~(0x0b);
cx25840_write(client, 0x421, v);
} else {
cx25840_write(client, 0x115, 0x00);
cx25840_write(client, 0x116, 0x00);
}
break;
case VIDIOC_LOG_STATUS:
log_video_status(client);
if (!state->is_cx25836)
log_audio_status(client);
break;
case VIDIOC_G_CTRL:
return get_v4lctrl(client, (struct v4l2_control *)arg);
case VIDIOC_S_CTRL:
return set_v4lctrl(client, (struct v4l2_control *)arg);
case VIDIOC_QUERYCTRL:
{
struct v4l2_queryctrl *qc = arg;
switch (qc->id) {
case V4L2_CID_BRIGHTNESS:
case V4L2_CID_CONTRAST:
case V4L2_CID_SATURATION:
case V4L2_CID_HUE:
return v4l2_ctrl_query_fill_std(qc);
default:
break;
}
if (state->is_cx25836)
return -EINVAL;
switch (qc->id) {
case V4L2_CID_AUDIO_VOLUME:
return v4l2_ctrl_query_fill(qc, 0, 65535,
65535 / 100, state->default_volume);
case V4L2_CID_AUDIO_MUTE:
case V4L2_CID_AUDIO_BALANCE:
case V4L2_CID_AUDIO_BASS:
case V4L2_CID_AUDIO_TREBLE:
return v4l2_ctrl_query_fill_std(qc);
default:
return -EINVAL;
}
return -EINVAL;
}
case VIDIOC_G_STD:
*(v4l2_std_id *)arg = state->std;
break;
case VIDIOC_S_STD:
if (state->radio == 0 && state->std == *(v4l2_std_id *)arg)
return 0;
state->radio = 0;
state->std = *(v4l2_std_id *)arg;
return set_v4lstd(client);
case AUDC_SET_RADIO:
state->radio = 1;
break;
case VIDIOC_INT_G_VIDEO_ROUTING:
route->input = state->vid_input;
route->output = 0;
break;
case VIDIOC_INT_S_VIDEO_ROUTING:
return set_input(client, route->input, state->aud_input);
case VIDIOC_INT_G_AUDIO_ROUTING:
if (state->is_cx25836)
return -EINVAL;
route->input = state->aud_input;
route->output = 0;
break;
case VIDIOC_INT_S_AUDIO_ROUTING:
if (state->is_cx25836)
return -EINVAL;
return set_input(client, state->vid_input, route->input);
case VIDIOC_S_FREQUENCY:
if (!state->is_cx25836) {
input_change(client);
}
break;
case VIDIOC_G_TUNER:
{
u8 vpres = cx25840_read(client, 0x40e) & 0x20;
u8 mode;
int val = 0;
if (state->radio)
break;
vt->signal = vpres ? 0xffff : 0x0;
if (state->is_cx25836)
break;
vt->capability |=
V4L2_TUNER_CAP_STEREO | V4L2_TUNER_CAP_LANG1 |
V4L2_TUNER_CAP_LANG2 | V4L2_TUNER_CAP_SAP;
mode = cx25840_read(client, 0x804);
/* get rxsubchans and audmode */
if ((mode & 0xf) == 1)
val |= V4L2_TUNER_SUB_STEREO;
else
val |= V4L2_TUNER_SUB_MONO;
if (mode == 2 || mode == 4)
val = V4L2_TUNER_SUB_LANG1 | V4L2_TUNER_SUB_LANG2;
if (mode & 0x10)
val |= V4L2_TUNER_SUB_SAP;
vt->rxsubchans = val;
vt->audmode = state->audmode;
break;
}
case VIDIOC_S_TUNER:
if (state->radio || state->is_cx25836)
break;
switch (vt->audmode) {
case V4L2_TUNER_MODE_MONO:
/* mono -> mono
stereo -> mono
bilingual -> lang1 */
cx25840_and_or(client, 0x809, ~0xf, 0x00);
break;
case V4L2_TUNER_MODE_STEREO:
case V4L2_TUNER_MODE_LANG1:
/* mono -> mono
stereo -> stereo
bilingual -> lang1 */
cx25840_and_or(client, 0x809, ~0xf, 0x04);
break;
case V4L2_TUNER_MODE_LANG1_LANG2:
/* mono -> mono
stereo -> stereo
bilingual -> lang1/lang2 */
cx25840_and_or(client, 0x809, ~0xf, 0x07);
break;
case V4L2_TUNER_MODE_LANG2:
/* mono -> mono
stereo -> stereo
bilingual -> lang2 */
cx25840_and_or(client, 0x809, ~0xf, 0x01);
break;
default:
return -EINVAL;
}
state->audmode = vt->audmode;
break;
case VIDIOC_G_FMT:
return get_v4lfmt(client, (struct v4l2_format *)arg);
case VIDIOC_S_FMT:
return set_v4lfmt(client, (struct v4l2_format *)arg);
case VIDIOC_INT_RESET:
if (state->is_cx25836)
cx25836_initialize(client);
else if (state->is_cx23885)
cx23885_initialize(client);
else
cx25840_initialize(client);
break;
case VIDIOC_G_CHIP_IDENT:
return v4l2_chip_ident_i2c_client(client, arg, state->id, state->rev);
default:
return -EINVAL;
}
return 0;
}
/* ----------------------------------------------------------------------- */
static int cx25840_probe(struct i2c_client *client,
const struct i2c_device_id *did)
{
struct cx25840_state *state;
u32 id;
u16 device_id;
/* Check if the adapter supports the needed features */
if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_BYTE_DATA))
return -EIO;
v4l_dbg(1, cx25840_debug, client, "detecting cx25840 client on address 0x%x\n", client->addr << 1);
device_id = cx25840_read(client, 0x101) << 8;
device_id |= cx25840_read(client, 0x100);
v4l_dbg(1, cx25840_debug, client, "device_id = 0x%04x\n", device_id);
/* The high byte of the device ID should be
* 0x83 for the cx2583x and 0x84 for the cx2584x */
if ((device_id & 0xff00) == 0x8300) {
id = V4L2_IDENT_CX25836 + ((device_id >> 4) & 0xf) - 6;
}
else if ((device_id & 0xff00) == 0x8400) {
id = V4L2_IDENT_CX25840 + ((device_id >> 4) & 0xf);
} else if (device_id == 0x0000) {
id = V4L2_IDENT_CX25836 + ((device_id >> 4) & 0xf) - 6;
} else if (device_id == 0x1313) {
id = V4L2_IDENT_CX25836 + ((device_id >> 4) & 0xf) - 6;
}
else {
v4l_dbg(1, cx25840_debug, client, "cx25840 not found\n");
return -ENODEV;
}
state = kzalloc(sizeof(struct cx25840_state), GFP_KERNEL);
if (state == NULL) {
return -ENOMEM;
}
/* Note: revision '(device_id & 0x0f) == 2' was never built. The
marking skips from 0x1 == 22 to 0x3 == 23. */
v4l_info(client, "cx25%3x-2%x found @ 0x%x (%s)\n",
(device_id & 0xfff0) >> 4,
(device_id & 0x0f) < 3 ? (device_id & 0x0f) + 1 : (device_id & 0x0f),
client->addr << 1, client->adapter->name);
i2c_set_clientdata(client, state);
state->c = client;
state->is_cx25836 = ((device_id & 0xff00) == 0x8300);
state->is_cx23885 = (device_id == 0x0000) || (device_id == 0x1313);
state->vid_input = CX25840_COMPOSITE7;
state->aud_input = CX25840_AUDIO8;
state->audclk_freq = 48000;
state->pvr150_workaround = 0;
state->audmode = V4L2_TUNER_MODE_LANG1;
state->unmute_volume = -1;
state->default_volume = 228 - cx25840_read(client, 0x8d4);
state->default_volume = ((state->default_volume / 2) + 23) << 9;
state->vbi_line_offset = 8;
state->id = id;
state->rev = device_id;
if (state->is_cx23885) {
/* Drive GPIO2 direction and values */
cx25840_write(client, 0x160, 0x1d);
cx25840_write(client, 0x164, 0x00);
}
return 0;
}
static int cx25840_remove(struct i2c_client *client)
{
kfree(i2c_get_clientdata(client));
return 0;
}
static const struct i2c_device_id cx25840_id[] = {
{ "cx25840", 0 },
{ }
};
MODULE_DEVICE_TABLE(i2c, cx25840_id);
static struct v4l2_i2c_driver_data v4l2_i2c_data = {
.name = "cx25840",
.driverid = I2C_DRIVERID_CX25840,
.command = cx25840_command,
.probe = cx25840_probe,
.remove = cx25840_remove,
.id_table = cx25840_id,
};
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