cx25840-core.c 44.6 KB
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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>.
 *
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 * NTSC sliced VBI support by Christopher Neufeld <television@cneufeld.ca>
 * with additional fixes by Hans Verkuil <hverkuil@xs4all.nl>.
 *
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 * CX23885 support by Steven Toth <stoth@linuxtv.org>.
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 *
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 * 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>
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#include <linux/delay.h>
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#include <media/v4l2-common.h>
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#include <media/v4l2-chip-ident.h>
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#include <media/v4l2-i2c-drv.h>
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#include <media/cx25840.h>
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#include "cx25840-core.h"
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MODULE_DESCRIPTION("Conexant CX25840 audio/video decoder driver");
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MODULE_AUTHOR("Ulf Eklund, Chris Kennedy, Hans Verkuil, Tyler Trafford");
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MODULE_LICENSE("GPL");

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static int cx25840_debug;
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module_param_named(debug,cx25840_debug, int, 0644);
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MODULE_PARM_DESC(debug, "Debugging messages [0=Off (default) 1=On]");
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/* ----------------------------------------------------------------------- */

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;
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	buffer[2] = value & 0xff;
	buffer[3] = (value >> 8) & 0xff;
	buffer[4] = (value >> 16) & 0xff;
	buffer[5] = value >> 24;
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	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;

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	return (buffer[3] << 24) | (buffer[2] << 16) |
	    (buffer[1] << 8) | buffer[0];
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}

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int cx25840_and_or(struct i2c_client *client, u16 addr, unsigned and_mask,
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		   u8 or_value)
{
	return cx25840_write(client, addr,
			     (cx25840_read(client, addr) & and_mask) |
			     or_value);
}

/* ----------------------------------------------------------------------- */

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static int set_input(struct i2c_client *client, enum cx25840_video_input vid_input,
						enum cx25840_audio_input aud_input);
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/* ----------------------------------------------------------------------- */

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static void init_dll1(struct i2c_client *client)
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{
	/* 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);
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	udelay(10);
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	cx25840_write(client, 0x159, 0xe1);
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	udelay(10);
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	cx25840_write(client, 0x15a, 0x86);
	cx25840_write(client, 0x159, 0xe0);
	cx25840_write(client, 0x159, 0xe1);
	cx25840_write(client, 0x15b, 0x10);
}

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static void init_dll2(struct i2c_client *client)
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{
	/* 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);
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	udelay(10);
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	cx25840_write(client, 0x15d, 0xe1);
	cx25840_write(client, 0x15d, 0xe0);
	cx25840_write(client, 0x15d, 0xe1);
}

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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. */
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	udelay(10);
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	/* 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);
}

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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);
}

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static void cx25840_initialize(struct i2c_client *client)
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{
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	DEFINE_WAIT(wait);
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	struct cx25840_state *state = to_state(i2c_get_clientdata(client));
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	struct workqueue_struct *q;
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	/* 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. */
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	/* 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);

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	/* 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. */
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	cx25840_and_or(client, 0x401, ~0x18, 0);
	cx25840_and_or(client, 0x4a2, ~0x10, 0x10);
	/* steps 8c and 8d are done in change_input() */
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	/* 10. */
	cx25840_write(client, 0x8d3, 0x1f);
	cx25840_write(client, 0x8e3, 0x03);

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	cx25840_std_setup(client);
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	/* 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);

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	/* (re)set input */
	set_input(client, state->vid_input, state->aud_input);
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	/* start microcontroller */
	cx25840_and_or(client, 0x803, ~0x10, 0x10);
}

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static void cx23885_initialize(struct i2c_client *client)
{
	DEFINE_WAIT(wait);
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	struct cx25840_state *state = to_state(i2c_get_clientdata(client));
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	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);

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	cx25840_std_setup(client);
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	/* (re)set input */
	set_input(client, state->vid_input, state->aud_input);

	/* start microcontroller */
	cx25840_and_or(client, 0x803, ~0x10, 0x10);
}

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/* ----------------------------------------------------------------------- */

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static void cx231xx_initialize(struct i2c_client *client)
{
	DEFINE_WAIT(wait);
	struct cx25840_state *state = to_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);

	/* Disable DIF bypass */
	cx25840_write4(client, 0x33c, 0x00000001);

	/* DIF Src phase inc */
	cx25840_write4(client, 0x340, 0x0df7df83);

	/* Luma */
	cx25840_write4(client, 0x414, 0x00107d12);

	/* Chroma */
	cx25840_write4(client, 0x420, 0x3d008282);

	/* 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);

	/* 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);
}

/* ----------------------------------------------------------------------- */

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void cx25840_std_setup(struct i2c_client *client)
{
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	struct cx25840_state *state = to_state(i2c_get_clientdata(client));
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	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 */
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	if (!state->is_cx231xx) {
		pll_int = cx25840_read(client, 0x108);
		pll_frac = cx25840_read4(client, 0x10c) & 0x1ffffff;
		pll_post = cx25840_read(client, 0x109);
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		v4l_dbg(1, cx25840_debug, client,
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			"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);
		}
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	}

	/* 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;
	}
}

/* ----------------------------------------------------------------------- */

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static void input_change(struct i2c_client *client)
{
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	struct cx25840_state *state = to_state(i2c_get_clientdata(client));
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	v4l2_std_id std = state->std;
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	/* 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);
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	cx25840_and_or(client, 0x810, ~0x01, 1);
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	if (state->radio) {
		cx25840_write(client, 0x808, 0xf9);
		cx25840_write(client, 0x80b, 0x00);
	}
	else if (std & V4L2_STD_525_60) {
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		/* 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) {
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			/* Japan uses EIAJ audio standard */
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			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);
603 604
		} else {
			/* Others use the BTSC audio standard */
605
			cx25840_write(client, 0x808, hw_fix ? 0x1f : 0xf6);
606
		}
607
		cx25840_write(client, 0x80b, 0x00);
608 609 610 611 612 613 614 615
	} 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);
616 617
	}

618
	cx25840_and_or(client, 0x810, ~0x01, 0);
619 620
}

621 622
static int set_input(struct i2c_client *client, enum cx25840_video_input vid_input,
						enum cx25840_audio_input aud_input)
623
{
624
	struct cx25840_state *state = to_state(i2c_get_clientdata(client));
625 626 627
	u8 is_composite = (vid_input >= CX25840_COMPOSITE1 &&
			   vid_input <= CX25840_COMPOSITE8);
	u8 reg;
628

629 630 631
	v4l_dbg(1, cx25840_debug, client,
		"decoder set video input %d, audio input %d\n",
		vid_input, aud_input);
632

633 634 635 636 637 638 639 640 641 642 643 644
	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
645 646 647 648 649
	if (is_composite) {
		reg = 0xf0 + (vid_input - CX25840_COMPOSITE1);
	} else {
		int luma = vid_input & 0xf0;
		int chroma = vid_input & 0xf00;
650

651
		if ((vid_input & ~0xff0) ||
652
		    luma < CX25840_SVIDEO_LUMA1 || luma > CX25840_SVIDEO_LUMA8 ||
653
		    chroma < CX25840_SVIDEO_CHROMA4 || chroma > CX25840_SVIDEO_CHROMA8) {
654 655
			v4l_err(client, "0x%04x is not a valid video input!\n",
				vid_input);
656
			return -EINVAL;
657
		}
658 659 660 661
		reg = 0xf0 + ((luma - CX25840_SVIDEO_LUMA1) >> 4);
		if (chroma >= CX25840_SVIDEO_CHROMA7) {
			reg &= 0x3f;
			reg |= (chroma - CX25840_SVIDEO_CHROMA7) >> 2;
662
		} else {
663 664
			reg &= 0xcf;
			reg |= (chroma - CX25840_SVIDEO_CHROMA4) >> 4;
665
		}
666
	}
667

668 669 670 671
	/* 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.
	 */
672
	if (!state->is_cx23885 && !state->is_cx231xx) {
673 674 675 676 677 678 679 680 681
		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;
682

683 684 685 686 687
		default:
			v4l_err(client, "0x%04x is not a valid audio input!\n",
				aud_input);
			return -EINVAL;
		}
688 689
	}

690
	cx25840_write(client, 0x103, reg);
691

692 693
	/* Set INPUT_MODE to Composite (0) or S-Video (1) */
	cx25840_and_or(client, 0x401, ~0x6, is_composite ? 0 : 0x02);
694

695
	if (!state->is_cx23885 && !state->is_cx231xx) {
696 697 698 699 700 701 702 703 704 705 706 707 708 709 710
		/* 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);
	}
711 712 713

	state->vid_input = vid_input;
	state->aud_input = aud_input;
714 715 716 717
	if (!state->is_cx25836) {
		cx25840_audio_set_path(client);
		input_change(client);
	}
718 719 720 721 722 723 724 725 726 727 728

	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);

729 730 731 732 733 734 735 736 737 738 739 740 741
		/* 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);
	} else if (state->is_cx231xx) {
		/* Audio channel 1 src : Parallel 1 */
		cx25840_write(client, 0x124, 0x03);

		/* I2S_IN_CTL: I2S_IN_SONY_MODE, LEFT SAMPLE on WS=1 */
		cx25840_write(client, 0x914, 0xa0);

742 743 744 745 746 747 748 749
		/* 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);
	}

750 751 752 753 754
	return 0;
}

/* ----------------------------------------------------------------------- */

755
static int set_v4lstd(struct i2c_client *client)
756
{
757
	struct cx25840_state *state = to_state(i2c_get_clientdata(client));
758 759
	u8 fmt = 0; 	/* zero is autodetect */
	u8 pal_m = 0;
760 761

	/* First tests should be against specific std */
762 763 764 765 766 767 768 769 770 771 772 773 774
	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;
775 776
	} else {
		/* Then, test against generic ones */
777 778 779 780 781 782
		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;
783 784
	}

785 786
	v4l_dbg(1, cx25840_debug, client, "changing video std to fmt %i\n",fmt);

787 788 789 790 791 792 793 794 795
	/* 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);
	}
796
	cx25840_and_or(client, 0x400, ~0xf, fmt);
797
	cx25840_and_or(client, 0x403, ~0x3, pal_m);
798
	cx25840_std_setup(client);
799 800
	if (!state->is_cx25836)
		input_change(client);
801 802 803 804 805
	return 0;
}

/* ----------------------------------------------------------------------- */

806
static int cx25840_s_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl)
807
{
808
	struct cx25840_state *state = to_state(sd);
809
	struct i2c_client *client = v4l2_get_subdevdata(sd);
810 811

	switch (ctrl->id) {
812 813 814
	case CX25840_CID_ENABLE_PVR150_WORKAROUND:
		state->pvr150_workaround = ctrl->value;
		set_input(client, state->vid_input, state->aud_input);
815 816 817 818
		break;

	case V4L2_CID_BRIGHTNESS:
		if (ctrl->value < 0 || ctrl->value > 255) {
819
			v4l_err(client, "invalid brightness setting %d\n",
820 821 822 823 824 825 826 827 828
				    ctrl->value);
			return -ERANGE;
		}

		cx25840_write(client, 0x414, ctrl->value - 128);
		break;

	case V4L2_CID_CONTRAST:
		if (ctrl->value < 0 || ctrl->value > 127) {
829
			v4l_err(client, "invalid contrast setting %d\n",
830 831 832 833 834 835 836 837 838
				    ctrl->value);
			return -ERANGE;
		}

		cx25840_write(client, 0x415, ctrl->value << 1);
		break;

	case V4L2_CID_SATURATION:
		if (ctrl->value < 0 || ctrl->value > 127) {
839
			v4l_err(client, "invalid saturation setting %d\n",
840 841 842 843 844 845 846 847 848
				    ctrl->value);
			return -ERANGE;
		}

		cx25840_write(client, 0x420, ctrl->value << 1);
		cx25840_write(client, 0x421, ctrl->value << 1);
		break;

	case V4L2_CID_HUE:
849
		if (ctrl->value < -128 || ctrl->value > 127) {
850
			v4l_err(client, "invalid hue setting %d\n", ctrl->value);
851 852 853 854 855 856 857 858 859 860 861
			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:
862 863
		if (state->is_cx25836)
			return -EINVAL;
864
		return cx25840_audio_s_ctrl(sd, ctrl);
865 866 867

	default:
		return -EINVAL;
868 869 870 871 872
	}

	return 0;
}

873
static int cx25840_g_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl)
874
{
875
	struct cx25840_state *state = to_state(sd);
876
	struct i2c_client *client = v4l2_get_subdevdata(sd);
877 878

	switch (ctrl->id) {
879 880
	case CX25840_CID_ENABLE_PVR150_WORKAROUND:
		ctrl->value = state->pvr150_workaround;
881 882
		break;
	case V4L2_CID_BRIGHTNESS:
883
		ctrl->value = (s8)cx25840_read(client, 0x414) + 128;
884 885 886 887 888 889 890 891
		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:
892
		ctrl->value = (s8)cx25840_read(client, 0x422);
893 894 895 896 897 898
		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:
899 900
		if (state->is_cx25836)
			return -EINVAL;
901
		return cx25840_audio_g_ctrl(sd, ctrl);
902 903 904 905 906 907 908 909 910
	default:
		return -EINVAL;
	}

	return 0;
}

/* ----------------------------------------------------------------------- */

911
static int cx25840_g_fmt(struct v4l2_subdev *sd, struct v4l2_format *fmt)
912 913 914
{
	switch (fmt->type) {
	case V4L2_BUF_TYPE_SLICED_VBI_CAPTURE:
915
		return cx25840_vbi_g_fmt(sd, fmt);
916 917 918 919 920 921
	default:
		return -EINVAL;
	}
	return 0;
}

922
static int cx25840_s_fmt(struct v4l2_subdev *sd, struct v4l2_format *fmt)
923
{
924 925
	struct cx25840_state *state = to_state(sd);
	struct i2c_client *client = v4l2_get_subdevdata(sd);
926 927
	struct v4l2_pix_format *pix;
	int HSC, VSC, Vsrc, Hsrc, filter, Vlines;
928
	int is_50Hz = !(state->std & V4L2_STD_525_60);
929 930 931 932 933 934 935 936 937 938 939

	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;

940
		Vlines = pix->height + (is_50Hz ? 4 : 7);
941 942 943

		if ((pix->width * 16 < Hsrc) || (Hsrc < pix->width) ||
		    (Vlines * 8 < Vsrc) || (Vsrc < Vlines)) {
944
			v4l_err(client, "%dx%d is not a valid size!\n",
945 946 947 948 949 950 951 952 953 954 955 956 957 958 959 960 961
				    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;

962
		v4l_dbg(1, cx25840_debug, client, "decoder set size %dx%d -> scale  %ux%u\n",
963 964 965 966 967 968 969 970 971 972 973 974 975 976
			    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:
977
		return cx25840_vbi_s_fmt(sd, fmt);
978 979

	case V4L2_BUF_TYPE_VBI_CAPTURE:
980
		return cx25840_vbi_s_fmt(sd, fmt);
981 982 983 984 985 986 987 988 989 990

	default:
		return -EINVAL;
	}

	return 0;
}

/* ----------------------------------------------------------------------- */

991 992 993 994 995 996 997 998 999 1000 1001
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"
	};

1002
	struct cx25840_state *state = to_state(i2c_get_clientdata(client));
1003 1004 1005 1006 1007 1008 1009 1010 1011 1012 1013 1014 1015 1016 1017 1018 1019 1020 1021 1022 1023 1024 1025 1026 1027 1028 1029 1030 1031
	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)
{
1032
	struct cx25840_state *state = to_state(i2c_get_clientdata(client));
1033 1034 1035 1036 1037 1038 1039 1040 1041 1042 1043 1044 1045 1046 1047 1048 1049 1050 1051 1052 1053 1054 1055 1056 1057 1058 1059 1060 1061 1062 1063 1064 1065 1066 1067 1068 1069 1070 1071 1072 1073 1074 1075 1076 1077 1078 1079 1080 1081 1082 1083 1084 1085 1086 1087 1088 1089 1090 1091 1092 1093 1094 1095 1096 1097 1098 1099 1100 1101 1102 1103 1104 1105 1106 1107 1108 1109 1110 1111 1112 1113 1114 1115 1116 1117 1118 1119 1120 1121 1122 1123 1124 1125 1126 1127 1128 1129 1130 1131 1132 1133 1134 1135 1136 1137 1138 1139 1140 1141 1142 1143 1144 1145 1146 1147 1148 1149 1150 1151 1152 1153 1154 1155 1156 1157 1158 1159 1160 1161 1162 1163 1164 1165 1166 1167 1168 1169 1170 1171 1172 1173 1174 1175 1176 1177 1178 1179 1180 1181 1182 1183 1184
	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);
	}
}

/* ----------------------------------------------------------------------- */

1185
/* This load_fw operation must be called to load the driver's firmware.
1186 1187 1188 1189 1190 1191 1192 1193 1194
   Without this the audio standard detection will fail and you will
   only get mono.

   Since loading the firmware is often problematic when the driver is
   compiled into the kernel I recommend postponing calling this function
   until the first open of the video device. Another reason for
   postponing it is that loading this firmware takes a long time (seconds)
   due to the slow i2c bus speed. So it will speed up the boot process if
   you can avoid loading the fw as long as the video device isn't used.  */
1195
static int cx25840_load_fw(struct v4l2_subdev *sd)
1196
{
1197 1198
	struct cx25840_state *state = to_state(sd);
	struct i2c_client *client = v4l2_get_subdevdata(sd);
1199 1200

	if (!state->is_initialized) {
1201
		/* initialize and load firmware */
1202 1203 1204
		state->is_initialized = 1;
		if (state->is_cx25836)
			cx25836_initialize(client);
1205 1206
		else if (state->is_cx23885)
			cx23885_initialize(client);
1207
		else if (state->is_cx231xx)
1208
			cx231xx_initialize(client);
1209
		else
1210
			cx25840_initialize(client);
1211
	}
1212 1213
	return 0;
}
1214

1215
#ifdef CONFIG_VIDEO_ADV_DEBUG
1216
static int cx25840_g_register(struct v4l2_subdev *sd, struct v4l2_dbg_register *reg)
1217 1218
{
	struct i2c_client *client = v4l2_get_subdevdata(sd);
1219

1220
	if (!v4l2_chip_match_i2c_client(client, &reg->match))
1221 1222 1223
		return -EINVAL;
	if (!capable(CAP_SYS_ADMIN))
		return -EPERM;
1224
	reg->size = 1;
1225 1226 1227 1228
	reg->val = cx25840_read(client, reg->reg & 0x0fff);
	return 0;
}

1229
static int cx25840_s_register(struct v4l2_subdev *sd, struct v4l2_dbg_register *reg)
1230 1231 1232
{
	struct i2c_client *client = v4l2_get_subdevdata(sd);

1233
	if (!v4l2_chip_match_i2c_client(client, &reg->match))
1234 1235 1236 1237 1238 1239
		return -EINVAL;
	if (!capable(CAP_SYS_ADMIN))
		return -EPERM;
	cx25840_write(client, reg->reg & 0x0fff, reg->val & 0xff);
	return 0;
}
1240 1241
#endif

1242 1243 1244 1245
static int cx25840_s_stream(struct v4l2_subdev *sd, int enable)
{
	struct cx25840_state *state = to_state(sd);
	struct i2c_client *client = v4l2_get_subdevdata(sd);
1246

1247 1248 1249
	v4l_dbg(1, cx25840_debug, client, "%s output\n",
			enable ? "enable" : "disable");
	if (enable) {
1250
		if (state->is_cx23885 || state->is_cx231xx) {
1251 1252 1253 1254
			u8 v = (cx25840_read(client, 0x421) | 0x0b);
			cx25840_write(client, 0x421, v);
		} else {
			cx25840_write(client, 0x115,
1255
					state->is_cx25836 ? 0x0c : 0x8c);
1256
			cx25840_write(client, 0x116,
1257
					state->is_cx25836 ? 0x04 : 0x07);
1258
		}
1259
	} else {
1260
		if (state->is_cx23885 || state->is_cx231xx) {
1261 1262 1263 1264 1265 1266
			u8 v = cx25840_read(client, 0x421) & ~(0x0b);
			cx25840_write(client, 0x421, v);
		} else {
			cx25840_write(client, 0x115, 0x00);
			cx25840_write(client, 0x116, 0x00);
		}
1267 1268 1269
	}
	return 0;
}
1270

1271 1272 1273
static int cx25840_queryctrl(struct v4l2_subdev *sd, struct v4l2_queryctrl *qc)
{
	struct cx25840_state *state = to_state(sd);
1274

1275 1276
	switch (qc->id) {
	case V4L2_CID_BRIGHTNESS:
1277
		return v4l2_ctrl_query_fill(qc, 0, 255, 1, 128);
1278 1279
	case V4L2_CID_CONTRAST:
	case V4L2_CID_SATURATION:
1280
		return v4l2_ctrl_query_fill(qc, 0, 127, 1, 64);
1281
	case V4L2_CID_HUE:
1282
		return v4l2_ctrl_query_fill(qc, -128, 127, 1, 0);
1283 1284 1285 1286 1287
	default:
		break;
	}
	if (state->is_cx25836)
		return -EINVAL;
1288

1289 1290 1291 1292 1293
	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:
1294
		return v4l2_ctrl_query_fill(qc, 0, 1, 1, 0);
1295 1296 1297
	case V4L2_CID_AUDIO_BALANCE:
	case V4L2_CID_AUDIO_BASS:
	case V4L2_CID_AUDIO_TREBLE:
1298
		return v4l2_ctrl_query_fill(qc, 0, 65535, 65535 / 100, 32768);
1299 1300 1301 1302 1303
	default:
		return -EINVAL;
	}
	return -EINVAL;
}
1304

1305 1306 1307 1308
static int cx25840_s_std(struct v4l2_subdev *sd, v4l2_std_id std)
{
	struct cx25840_state *state = to_state(sd);
	struct i2c_client *client = v4l2_get_subdevdata(sd);
1309

1310 1311 1312 1313 1314 1315
	if (state->radio == 0 && state->std == std)
		return 0;
	state->radio = 0;
	state->std = std;
	return set_v4lstd(client);
}
1316

1317 1318 1319
static int cx25840_s_radio(struct v4l2_subdev *sd)
{
	struct cx25840_state *state = to_state(sd);
1320

1321 1322 1323
	state->radio = 1;
	return 0;
}
1324

1325 1326
static int cx25840_s_video_routing(struct v4l2_subdev *sd,
				   u32 input, u32 output, u32 config)
1327 1328 1329
{
	struct cx25840_state *state = to_state(sd);
	struct i2c_client *client = v4l2_get_subdevdata(sd);
1330

1331
	return set_input(client, input, state->aud_input);
1332
}
1333

1334 1335
static int cx25840_s_audio_routing(struct v4l2_subdev *sd,
				   u32 input, u32 output, u32 config)
1336 1337 1338
{
	struct cx25840_state *state = to_state(sd);
	struct i2c_client *client = v4l2_get_subdevdata(sd);
1339

1340 1341
	if (state->is_cx25836)
		return -EINVAL;
1342
	return set_input(client, state->vid_input, input);
1343
}
1344

1345 1346 1347 1348
static int cx25840_s_frequency(struct v4l2_subdev *sd, struct v4l2_frequency *freq)
{
	struct cx25840_state *state = to_state(sd);
	struct i2c_client *client = v4l2_get_subdevdata(sd);
1349

1350 1351 1352 1353
	if (!state->is_cx25836)
		input_change(client);
	return 0;
}
1354

1355 1356 1357 1358 1359 1360 1361
static int cx25840_g_tuner(struct v4l2_subdev *sd, struct v4l2_tuner *vt)
{
	struct cx25840_state *state = to_state(sd);
	struct i2c_client *client = v4l2_get_subdevdata(sd);
	u8 vpres = cx25840_read(client, 0x40e) & 0x20;
	u8 mode;
	int val = 0;
1362

1363 1364
	if (state->radio)
		return 0;
1365

1366 1367 1368
	vt->signal = vpres ? 0xffff : 0x0;
	if (state->is_cx25836)
		return 0;
1369

1370 1371 1372
	vt->capability |=
		V4L2_TUNER_CAP_STEREO | V4L2_TUNER_CAP_LANG1 |
		V4L2_TUNER_CAP_LANG2 | V4L2_TUNER_CAP_SAP;
1373

1374
	mode = cx25840_read(client, 0x804);
1375

1376 1377 1378 1379 1380
	/* get rxsubchans and audmode */
	if ((mode & 0xf) == 1)
		val |= V4L2_TUNER_SUB_STEREO;
	else
		val |= V4L2_TUNER_SUB_MONO;
1381

1382 1383
	if (mode == 2 || mode == 4)
		val = V4L2_TUNER_SUB_LANG1 | V4L2_TUNER_SUB_LANG2;
1384

1385 1386
	if (mode & 0x10)
		val |= V4L2_TUNER_SUB_SAP;
1387

1388 1389 1390 1391
	vt->rxsubchans = val;
	vt->audmode = state->audmode;
	return 0;
}
1392

1393 1394 1395 1396
static int cx25840_s_tuner(struct v4l2_subdev *sd, struct v4l2_tuner *vt)
{
	struct cx25840_state *state = to_state(sd);
	struct i2c_client *client = v4l2_get_subdevdata(sd);
1397

1398 1399
	if (state->radio || state->is_cx25836)
		return 0;
1400

1401
	switch (vt->audmode) {
1402
		case V4L2_TUNER_MODE_MONO:
1403 1404 1405
			/* mono      -> mono
			   stereo    -> mono
			   bilingual -> lang1 */
1406 1407
			cx25840_and_or(client, 0x809, ~0xf, 0x00);
			break;
1408
		case V4L2_TUNER_MODE_STEREO:
1409 1410 1411 1412
		case V4L2_TUNER_MODE_LANG1:
			/* mono      -> mono
			   stereo    -> stereo
			   bilingual -> lang1 */
1413 1414
			cx25840_and_or(client, 0x809, ~0xf, 0x04);
			break;
1415
		case V4L2_TUNER_MODE_LANG1_LANG2:
1416 1417 1418 1419 1420
			/* mono      -> mono
			   stereo    -> stereo
			   bilingual -> lang1/lang2 */
			cx25840_and_or(client, 0x809, ~0xf, 0x07);
			break;
1421
		case V4L2_TUNER_MODE_LANG2:
1422
			/* mono      -> mono
1423
			   stereo    -> stereo
1424
			   bilingual -> lang2 */
1425 1426
			cx25840_and_or(client, 0x809, ~0xf, 0x01);
			break;
1427 1428
		default:
			return -EINVAL;
1429 1430 1431 1432
	}
	state->audmode = vt->audmode;
	return 0;
}
1433

1434 1435 1436 1437
static int cx25840_reset(struct v4l2_subdev *sd, u32 val)
{
	struct cx25840_state *state = to_state(sd);
	struct i2c_client *client = v4l2_get_subdevdata(sd);
1438

1439 1440 1441 1442
	if (state->is_cx25836)
		cx25836_initialize(client);
	else if (state->is_cx23885)
		cx23885_initialize(client);
1443 1444
	else if (state->is_cx231xx)
		cx231xx_initialize(client);
1445 1446 1447 1448
	else
		cx25840_initialize(client);
	return 0;
}
1449

1450
static int cx25840_g_chip_ident(struct v4l2_subdev *sd, struct v4l2_dbg_chip_ident *chip)
1451 1452 1453
{
	struct cx25840_state *state = to_state(sd);
	struct i2c_client *client = v4l2_get_subdevdata(sd);
1454

1455 1456
	return v4l2_chip_ident_i2c_client(client, chip, state->id, state->rev);
}
1457

1458 1459 1460 1461
static int cx25840_log_status(struct v4l2_subdev *sd)
{
	struct cx25840_state *state = to_state(sd);
	struct i2c_client *client = v4l2_get_subdevdata(sd);
1462

1463 1464 1465
	log_video_status(client);
	if (!state->is_cx25836)
		log_audio_status(client);
1466
	return 0;
1467 1468
}

1469 1470 1471 1472 1473 1474 1475 1476
/* ----------------------------------------------------------------------- */

static const struct v4l2_subdev_core_ops cx25840_core_ops = {
	.log_status = cx25840_log_status,
	.g_chip_ident = cx25840_g_chip_ident,
	.g_ctrl = cx25840_g_ctrl,
	.s_ctrl = cx25840_s_ctrl,
	.queryctrl = cx25840_queryctrl,
1477
	.s_std = cx25840_s_std,
1478
	.reset = cx25840_reset,
1479
	.load_fw = cx25840_load_fw,
1480 1481 1482 1483 1484 1485 1486 1487 1488 1489 1490 1491 1492 1493 1494 1495 1496 1497 1498 1499 1500 1501 1502 1503 1504 1505 1506 1507 1508 1509 1510 1511 1512
#ifdef CONFIG_VIDEO_ADV_DEBUG
	.g_register = cx25840_g_register,
	.s_register = cx25840_s_register,
#endif
};

static const struct v4l2_subdev_tuner_ops cx25840_tuner_ops = {
	.s_frequency = cx25840_s_frequency,
	.s_radio = cx25840_s_radio,
	.g_tuner = cx25840_g_tuner,
	.s_tuner = cx25840_s_tuner,
};

static const struct v4l2_subdev_audio_ops cx25840_audio_ops = {
	.s_clock_freq = cx25840_s_clock_freq,
	.s_routing = cx25840_s_audio_routing,
};

static const struct v4l2_subdev_video_ops cx25840_video_ops = {
	.s_routing = cx25840_s_video_routing,
	.g_fmt = cx25840_g_fmt,
	.s_fmt = cx25840_s_fmt,
	.decode_vbi_line = cx25840_decode_vbi_line,
	.s_stream = cx25840_s_stream,
};

static const struct v4l2_subdev_ops cx25840_ops = {
	.core = &cx25840_core_ops,
	.tuner = &cx25840_tuner_ops,
	.audio = &cx25840_audio_ops,
	.video = &cx25840_video_ops,
};

1513 1514
/* ----------------------------------------------------------------------- */

1515 1516
static int cx25840_probe(struct i2c_client *client,
			 const struct i2c_device_id *did)
1517 1518
{
	struct cx25840_state *state;
1519
	struct v4l2_subdev *sd;
1520
	u32 id;
1521 1522
	u16 device_id;

1523 1524 1525 1526
	/* Check if the adapter supports the needed features */
	if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_BYTE_DATA))
		return -EIO;

1527
	v4l_dbg(1, cx25840_debug, client, "detecting cx25840 client on address 0x%x\n", client->addr << 1);
1528 1529 1530

	device_id = cx25840_read(client, 0x101) << 8;
	device_id |= cx25840_read(client, 0x100);
1531
	v4l_dbg(1, cx25840_debug, client, "device_id = 0x%04x\n", device_id);
1532 1533

	/* The high byte of the device ID should be
1534 1535 1536 1537 1538 1539
	 * 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);
1540
	} else if (device_id == 0x0000) {
1541
		id = V4L2_IDENT_CX25836 + ((device_id >> 4) & 0xf) - 6;
1542
	} else if (device_id == 0x1313) {
1543
		id = V4L2_IDENT_CX25836 + ((device_id >> 4) & 0xf) - 6;
1544 1545
	} else if ((device_id & 0xfff0) == 0x5A30) {
		id = V4L2_IDENT_CX25840 + ((device_id >> 4) & 0xf);
1546 1547
	}
	else {
1548
		v4l_dbg(1, cx25840_debug, client, "cx25840 not found\n");
1549
		return -ENODEV;
1550 1551
	}

1552
	state = kzalloc(sizeof(struct cx25840_state), GFP_KERNEL);
1553
	if (state == NULL)
1554 1555
		return -ENOMEM;

1556 1557
	sd = &state->sd;
	v4l2_i2c_subdev_init(sd, client, &cx25840_ops);
1558 1559
	/* Note: revision '(device_id & 0x0f) == 2' was never built. The
	   marking skips from 0x1 == 22 to 0x3 == 23. */
1560
	v4l_info(client, "cx25%3x-2%x found @ 0x%x (%s)\n",
1561
		    (device_id & 0xfff0) >> 4,
1562
		    (device_id & 0x0f) < 3 ? (device_id & 0x0f) + 1 : (device_id & 0x0f),
1563
		    client->addr << 1, client->adapter->name);
1564

1565 1566
	state->c = client;
	state->is_cx25836 = ((device_id & 0xff00) == 0x8300);
1567
	state->is_cx23885 = (device_id == 0x0000) || (device_id == 0x1313);
1568
	state->is_cx231xx = (device_id == 0x5a3e);
1569 1570
	state->vid_input = CX25840_COMPOSITE7;
	state->aud_input = CX25840_AUDIO8;
1571
	state->audclk_freq = 48000;
1572
	state->pvr150_workaround = 0;
1573
	state->audmode = V4L2_TUNER_MODE_LANG1;
1574
	state->unmute_volume = -1;
1575 1576
	state->default_volume = 228 - cx25840_read(client, 0x8d4);
	state->default_volume = ((state->default_volume / 2) + 23) << 9;
1577
	state->vbi_line_offset = 8;
1578
	state->id = id;
1579
	state->rev = device_id;
1580

1581 1582 1583 1584 1585 1586
	if (state->is_cx23885) {
		/* Drive GPIO2 direction and values */
		cx25840_write(client, 0x160, 0x1d);
		cx25840_write(client, 0x164, 0x00);
	}

1587 1588 1589
	return 0;
}

1590
static int cx25840_remove(struct i2c_client *client)
1591
{
1592 1593 1594 1595
	struct v4l2_subdev *sd = i2c_get_clientdata(client);

	v4l2_device_unregister_subdev(sd);
	kfree(to_state(sd));
1596 1597 1598
	return 0;
}

1599 1600 1601 1602 1603 1604
static const struct i2c_device_id cx25840_id[] = {
	{ "cx25840", 0 },
	{ }
};
MODULE_DEVICE_TABLE(i2c, cx25840_id);

1605 1606 1607 1608
static struct v4l2_i2c_driver_data v4l2_i2c_data = {
	.name = "cx25840",
	.probe = cx25840_probe,
	.remove = cx25840_remove,
1609
	.id_table = cx25840_id,
1610
};