cx25840-core.c 42.0 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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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 */
	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;
	}
}

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

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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);
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		} else {
			/* Others use the BTSC audio standard */
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			cx25840_write(client, 0x808, hw_fix ? 0x1f : 0xf6);
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		}
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		cx25840_write(client, 0x80b, 0x00);
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	} 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);
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	}

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	cx25840_and_or(client, 0x810, ~0x01, 0);
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}

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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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	struct cx25840_state *state = to_state(i2c_get_clientdata(client));
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	u8 is_composite = (vid_input >= CX25840_COMPOSITE1 &&
			   vid_input <= CX25840_COMPOSITE8);
	u8 reg;
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	v4l_dbg(1, cx25840_debug, client,
		"decoder set video input %d, audio input %d\n",
		vid_input, aud_input);
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	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
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	if (is_composite) {
		reg = 0xf0 + (vid_input - CX25840_COMPOSITE1);
	} else {
		int luma = vid_input & 0xf0;
		int chroma = vid_input & 0xf00;
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		if ((vid_input & ~0xff0) ||
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		    luma < CX25840_SVIDEO_LUMA1 || luma > CX25840_SVIDEO_LUMA8 ||
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		    chroma < CX25840_SVIDEO_CHROMA4 || chroma > CX25840_SVIDEO_CHROMA8) {
581 582
			v4l_err(client, "0x%04x is not a valid video input!\n",
				vid_input);
583
			return -EINVAL;
584
		}
585 586 587 588
		reg = 0xf0 + ((luma - CX25840_SVIDEO_LUMA1) >> 4);
		if (chroma >= CX25840_SVIDEO_CHROMA7) {
			reg &= 0x3f;
			reg |= (chroma - CX25840_SVIDEO_CHROMA7) >> 2;
589
		} else {
590 591
			reg &= 0xcf;
			reg |= (chroma - CX25840_SVIDEO_CHROMA4) >> 4;
592
		}
593
	}
594

595 596 597 598 599 600 601 602 603 604 605 606 607 608
	/* 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;
609

610 611 612 613 614
		default:
			v4l_err(client, "0x%04x is not a valid audio input!\n",
				aud_input);
			return -EINVAL;
		}
615 616
	}

617
	cx25840_write(client, 0x103, reg);
618

619 620
	/* Set INPUT_MODE to Composite (0) or S-Video (1) */
	cx25840_and_or(client, 0x401, ~0x6, is_composite ? 0 : 0x02);
621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637

	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);
	}
638 639 640

	state->vid_input = vid_input;
	state->aud_input = aud_input;
641 642 643 644
	if (!state->is_cx25836) {
		cx25840_audio_set_path(client);
		input_change(client);
	}
645 646 647 648 649 650 651 652 653 654 655 656 657 658 659 660 661 662 663

	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);
	}

664 665 666 667 668
	return 0;
}

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

669
static int set_v4lstd(struct i2c_client *client)
670
{
671
	struct cx25840_state *state = to_state(i2c_get_clientdata(client));
672 673
	u8 fmt = 0; 	/* zero is autodetect */
	u8 pal_m = 0;
674 675

	/* First tests should be against specific std */
676 677 678 679 680 681 682 683 684 685 686 687 688
	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;
689 690
	} else {
		/* Then, test against generic ones */
691 692 693 694 695 696
		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;
697 698
	}

699 700
	v4l_dbg(1, cx25840_debug, client, "changing video std to fmt %i\n",fmt);

701 702 703 704 705 706 707 708 709
	/* 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);
	}
710
	cx25840_and_or(client, 0x400, ~0xf, fmt);
711
	cx25840_and_or(client, 0x403, ~0x3, pal_m);
712
	cx25840_std_setup(client);
713 714
	if (!state->is_cx25836)
		input_change(client);
715 716 717 718 719
	return 0;
}

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

720
static int cx25840_s_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl)
721
{
722 723
	struct cx25840_state *state = to_state(sd);
	struct i2c_client *client = v4l2_get_subdevdata(sd);
724 725

	switch (ctrl->id) {
726 727 728
	case CX25840_CID_ENABLE_PVR150_WORKAROUND:
		state->pvr150_workaround = ctrl->value;
		set_input(client, state->vid_input, state->aud_input);
729 730 731 732
		break;

	case V4L2_CID_BRIGHTNESS:
		if (ctrl->value < 0 || ctrl->value > 255) {
733
			v4l_err(client, "invalid brightness setting %d\n",
734 735 736 737 738 739 740 741 742
				    ctrl->value);
			return -ERANGE;
		}

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

	case V4L2_CID_CONTRAST:
		if (ctrl->value < 0 || ctrl->value > 127) {
743
			v4l_err(client, "invalid contrast setting %d\n",
744 745 746 747 748 749 750 751 752
				    ctrl->value);
			return -ERANGE;
		}

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

	case V4L2_CID_SATURATION:
		if (ctrl->value < 0 || ctrl->value > 127) {
753
			v4l_err(client, "invalid saturation setting %d\n",
754 755 756 757 758 759 760 761 762
				    ctrl->value);
			return -ERANGE;
		}

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

	case V4L2_CID_HUE:
763
		if (ctrl->value < -128 || ctrl->value > 127) {
764
			v4l_err(client, "invalid hue setting %d\n", ctrl->value);
765 766 767 768 769 770 771 772 773 774 775
			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:
776 777
		if (state->is_cx25836)
			return -EINVAL;
778
		return cx25840_audio_s_ctrl(sd, ctrl);
779 780 781

	default:
		return -EINVAL;
782 783 784 785 786
	}

	return 0;
}

787
static int cx25840_g_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl)
788
{
789 790
	struct cx25840_state *state = to_state(sd);
	struct i2c_client *client = v4l2_get_subdevdata(sd);
791 792

	switch (ctrl->id) {
793 794
	case CX25840_CID_ENABLE_PVR150_WORKAROUND:
		ctrl->value = state->pvr150_workaround;
795 796
		break;
	case V4L2_CID_BRIGHTNESS:
797
		ctrl->value = (s8)cx25840_read(client, 0x414) + 128;
798 799 800 801 802 803 804 805
		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:
806
		ctrl->value = (s8)cx25840_read(client, 0x422);
807 808 809 810 811 812
		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:
813 814
		if (state->is_cx25836)
			return -EINVAL;
815
		return cx25840_audio_g_ctrl(sd, ctrl);
816 817 818 819 820 821 822 823 824
	default:
		return -EINVAL;
	}

	return 0;
}

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

825
static int cx25840_g_fmt(struct v4l2_subdev *sd, struct v4l2_format *fmt)
826 827 828
{
	switch (fmt->type) {
	case V4L2_BUF_TYPE_SLICED_VBI_CAPTURE:
829
		return cx25840_vbi_g_fmt(sd, fmt);
830 831 832 833 834 835
	default:
		return -EINVAL;
	}
	return 0;
}

836
static int cx25840_s_fmt(struct v4l2_subdev *sd, struct v4l2_format *fmt)
837
{
838 839
	struct cx25840_state *state = to_state(sd);
	struct i2c_client *client = v4l2_get_subdevdata(sd);
840 841
	struct v4l2_pix_format *pix;
	int HSC, VSC, Vsrc, Hsrc, filter, Vlines;
842
	int is_50Hz = !(state->std & V4L2_STD_525_60);
843 844 845 846 847 848 849 850 851 852 853

	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;

854
		Vlines = pix->height + (is_50Hz ? 4 : 7);
855 856 857

		if ((pix->width * 16 < Hsrc) || (Hsrc < pix->width) ||
		    (Vlines * 8 < Vsrc) || (Vsrc < Vlines)) {
858
			v4l_err(client, "%dx%d is not a valid size!\n",
859 860 861 862 863 864 865 866 867 868 869 870 871 872 873 874 875
				    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;

876
		v4l_dbg(1, cx25840_debug, client, "decoder set size %dx%d -> scale  %ux%u\n",
877 878 879 880 881 882 883 884 885 886 887 888 889 890
			    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:
891
		return cx25840_vbi_s_fmt(sd, fmt);
892 893

	case V4L2_BUF_TYPE_VBI_CAPTURE:
894
		return cx25840_vbi_s_fmt(sd, fmt);
895 896 897 898 899 900 901 902 903 904

	default:
		return -EINVAL;
	}

	return 0;
}

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

905 906 907 908 909 910 911 912 913 914 915
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"
	};

916
	struct cx25840_state *state = to_state(i2c_get_clientdata(client));
917 918 919 920 921 922 923 924 925 926 927 928 929 930 931 932 933 934 935 936 937 938 939 940 941 942 943 944 945
	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)
{
946
	struct cx25840_state *state = to_state(i2c_get_clientdata(client));
947 948 949 950 951 952 953 954 955 956 957 958 959 960 961 962 963 964 965 966 967 968 969 970 971 972 973 974 975 976 977 978 979 980 981 982 983 984 985 986 987 988 989 990 991 992 993 994 995 996 997 998 999 1000 1001 1002 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 1032 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
	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);
	}
}

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

1099 1100 1101 1102 1103 1104 1105 1106 1107 1108
/* This init operation must be called to load the driver's firmware.
   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.  */
1109
static int cx25840_init(struct v4l2_subdev *sd, u32 val)
1110
{
1111 1112
	struct cx25840_state *state = to_state(sd);
	struct i2c_client *client = v4l2_get_subdevdata(sd);
1113 1114 1115 1116 1117 1118

	if (!state->is_initialized) {
		/* initialize on first use */
		state->is_initialized = 1;
		if (state->is_cx25836)
			cx25836_initialize(client);
1119 1120
		else if (state->is_cx23885)
			cx23885_initialize(client);
1121
		else
1122
			cx25840_initialize(client);
1123
	}
1124 1125
	return 0;
}
1126

1127
#ifdef CONFIG_VIDEO_ADV_DEBUG
1128
static int cx25840_g_register(struct v4l2_subdev *sd, struct v4l2_dbg_register *reg)
1129 1130
{
	struct i2c_client *client = v4l2_get_subdevdata(sd);
1131

1132
	if (!v4l2_chip_match_i2c_client(client, &reg->match))
1133 1134 1135
		return -EINVAL;
	if (!capable(CAP_SYS_ADMIN))
		return -EPERM;
1136
	reg->size = 1;
1137 1138 1139 1140
	reg->val = cx25840_read(client, reg->reg & 0x0fff);
	return 0;
}

1141
static int cx25840_s_register(struct v4l2_subdev *sd, struct v4l2_dbg_register *reg)
1142 1143 1144
{
	struct i2c_client *client = v4l2_get_subdevdata(sd);

1145
	if (!v4l2_chip_match_i2c_client(client, &reg->match))
1146 1147 1148 1149 1150 1151
		return -EINVAL;
	if (!capable(CAP_SYS_ADMIN))
		return -EPERM;
	cx25840_write(client, reg->reg & 0x0fff, reg->val & 0xff);
	return 0;
}
1152 1153
#endif

1154 1155 1156 1157
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);
1158

1159 1160 1161
	v4l_dbg(1, cx25840_debug, client, "%s output\n",
			enable ? "enable" : "disable");
	if (enable) {
1162 1163 1164 1165 1166
		if (state->is_cx23885) {
			u8 v = (cx25840_read(client, 0x421) | 0x0b);
			cx25840_write(client, 0x421, v);
		} else {
			cx25840_write(client, 0x115,
1167
					state->is_cx25836 ? 0x0c : 0x8c);
1168
			cx25840_write(client, 0x116,
1169
					state->is_cx25836 ? 0x04 : 0x07);
1170
		}
1171
	} else {
1172 1173 1174 1175 1176 1177 1178
		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);
		}
1179 1180 1181
	}
	return 0;
}
1182

1183 1184 1185
static int cx25840_queryctrl(struct v4l2_subdev *sd, struct v4l2_queryctrl *qc)
{
	struct cx25840_state *state = to_state(sd);
1186

1187 1188
	switch (qc->id) {
	case V4L2_CID_BRIGHTNESS:
1189
		return v4l2_ctrl_query_fill(qc, 0, 255, 1, 128);
1190 1191
	case V4L2_CID_CONTRAST:
	case V4L2_CID_SATURATION:
1192
		return v4l2_ctrl_query_fill(qc, 0, 127, 1, 64);
1193
	case V4L2_CID_HUE:
1194
		return v4l2_ctrl_query_fill(qc, -128, 127, 1, 0);
1195 1196 1197 1198 1199
	default:
		break;
	}
	if (state->is_cx25836)
		return -EINVAL;
1200

1201 1202 1203 1204 1205
	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:
1206
		return v4l2_ctrl_query_fill(qc, 0, 1, 1, 0);
1207 1208 1209
	case V4L2_CID_AUDIO_BALANCE:
	case V4L2_CID_AUDIO_BASS:
	case V4L2_CID_AUDIO_TREBLE:
1210
		return v4l2_ctrl_query_fill(qc, 0, 65535, 65535 / 100, 32768);
1211 1212 1213 1214 1215
	default:
		return -EINVAL;
	}
	return -EINVAL;
}
1216

1217 1218 1219 1220
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);
1221

1222 1223 1224 1225 1226 1227
	if (state->radio == 0 && state->std == std)
		return 0;
	state->radio = 0;
	state->std = std;
	return set_v4lstd(client);
}
1228

1229 1230 1231
static int cx25840_s_radio(struct v4l2_subdev *sd)
{
	struct cx25840_state *state = to_state(sd);
1232

1233 1234 1235
	state->radio = 1;
	return 0;
}
1236

1237 1238 1239 1240
static int cx25840_s_video_routing(struct v4l2_subdev *sd, const struct v4l2_routing *route)
{
	struct cx25840_state *state = to_state(sd);
	struct i2c_client *client = v4l2_get_subdevdata(sd);
1241

1242 1243
	return set_input(client, route->input, state->aud_input);
}
1244

1245 1246 1247 1248
static int cx25840_s_audio_routing(struct v4l2_subdev *sd, const struct v4l2_routing *route)
{
	struct cx25840_state *state = to_state(sd);
	struct i2c_client *client = v4l2_get_subdevdata(sd);
1249

1250 1251 1252 1253
	if (state->is_cx25836)
		return -EINVAL;
	return set_input(client, state->vid_input, route->input);
}
1254

1255 1256 1257 1258
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);
1259

1260 1261 1262 1263
	if (!state->is_cx25836)
		input_change(client);
	return 0;
}
1264

1265 1266 1267 1268 1269 1270 1271
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;
1272

1273 1274
	if (state->radio)
		return 0;
1275

1276 1277 1278
	vt->signal = vpres ? 0xffff : 0x0;
	if (state->is_cx25836)
		return 0;
1279

1280 1281 1282
	vt->capability |=
		V4L2_TUNER_CAP_STEREO | V4L2_TUNER_CAP_LANG1 |
		V4L2_TUNER_CAP_LANG2 | V4L2_TUNER_CAP_SAP;
1283

1284
	mode = cx25840_read(client, 0x804);
1285

1286 1287 1288 1289 1290
	/* get rxsubchans and audmode */
	if ((mode & 0xf) == 1)
		val |= V4L2_TUNER_SUB_STEREO;
	else
		val |= V4L2_TUNER_SUB_MONO;
1291

1292 1293
	if (mode == 2 || mode == 4)
		val = V4L2_TUNER_SUB_LANG1 | V4L2_TUNER_SUB_LANG2;
1294

1295 1296
	if (mode & 0x10)
		val |= V4L2_TUNER_SUB_SAP;
1297

1298 1299 1300 1301
	vt->rxsubchans = val;
	vt->audmode = state->audmode;
	return 0;
}
1302

1303 1304 1305 1306
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);
1307

1308 1309
	if (state->radio || state->is_cx25836)
		return 0;
1310

1311
	switch (vt->audmode) {
1312
		case V4L2_TUNER_MODE_MONO:
1313 1314 1315
			/* mono      -> mono
			   stereo    -> mono
			   bilingual -> lang1 */
1316 1317
			cx25840_and_or(client, 0x809, ~0xf, 0x00);
			break;
1318
		case V4L2_TUNER_MODE_STEREO:
1319 1320 1321 1322
		case V4L2_TUNER_MODE_LANG1:
			/* mono      -> mono
			   stereo    -> stereo
			   bilingual -> lang1 */
1323 1324
			cx25840_and_or(client, 0x809, ~0xf, 0x04);
			break;
1325
		case V4L2_TUNER_MODE_LANG1_LANG2:
1326 1327 1328 1329 1330
			/* mono      -> mono
			   stereo    -> stereo
			   bilingual -> lang1/lang2 */
			cx25840_and_or(client, 0x809, ~0xf, 0x07);
			break;
1331
		case V4L2_TUNER_MODE_LANG2:
1332
			/* mono      -> mono
1333
			   stereo    -> stereo
1334
			   bilingual -> lang2 */
1335 1336
			cx25840_and_or(client, 0x809, ~0xf, 0x01);
			break;
1337 1338
		default:
			return -EINVAL;
1339 1340 1341 1342
	}
	state->audmode = vt->audmode;
	return 0;
}
1343

1344 1345 1346 1347
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);
1348

1349 1350 1351 1352 1353 1354 1355 1356
	if (state->is_cx25836)
		cx25836_initialize(client);
	else if (state->is_cx23885)
		cx23885_initialize(client);
	else
		cx25840_initialize(client);
	return 0;
}
1357

1358
static int cx25840_g_chip_ident(struct v4l2_subdev *sd, struct v4l2_dbg_chip_ident *chip)
1359 1360 1361
{
	struct cx25840_state *state = to_state(sd);
	struct i2c_client *client = v4l2_get_subdevdata(sd);
1362

1363 1364
	return v4l2_chip_ident_i2c_client(client, chip, state->id, state->rev);
}
1365

1366 1367 1368 1369
static int cx25840_log_status(struct v4l2_subdev *sd)
{
	struct cx25840_state *state = to_state(sd);
	struct i2c_client *client = v4l2_get_subdevdata(sd);
1370

1371 1372 1373
	log_video_status(client);
	if (!state->is_cx25836)
		log_audio_status(client);
1374
	return 0;
1375 1376
}

1377 1378 1379 1380 1381 1382 1383 1384 1385 1386 1387 1388 1389 1390 1391 1392 1393 1394 1395 1396 1397 1398 1399 1400 1401 1402 1403 1404 1405 1406 1407 1408 1409 1410 1411 1412 1413 1414 1415 1416 1417 1418 1419 1420
/* ----------------------------------------------------------------------- */

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,
	.reset = cx25840_reset,
	.init = cx25840_init,
#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_std = cx25840_s_std,
	.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,
};

1421 1422
/* ----------------------------------------------------------------------- */

1423 1424
static int cx25840_probe(struct i2c_client *client,
			 const struct i2c_device_id *did)
1425 1426
{
	struct cx25840_state *state;
1427
	struct v4l2_subdev *sd;
1428
	u32 id;
1429 1430
	u16 device_id;

1431 1432 1433 1434
	/* Check if the adapter supports the needed features */
	if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_BYTE_DATA))
		return -EIO;

1435
	v4l_dbg(1, cx25840_debug, client, "detecting cx25840 client on address 0x%x\n", client->addr << 1);
1436 1437 1438

	device_id = cx25840_read(client, 0x101) << 8;
	device_id |= cx25840_read(client, 0x100);
1439
	v4l_dbg(1, cx25840_debug, client, "device_id = 0x%04x\n", device_id);
1440 1441

	/* The high byte of the device ID should be
1442 1443 1444 1445 1446 1447
	 * 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);
1448 1449 1450 1451
	} 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;
1452 1453
	}
	else {
1454
		v4l_dbg(1, cx25840_debug, client, "cx25840 not found\n");
1455
		return -ENODEV;
1456 1457
	}

1458
	state = kzalloc(sizeof(struct cx25840_state), GFP_KERNEL);
1459
	if (state == NULL)
1460 1461
		return -ENOMEM;

1462 1463
	sd = &state->sd;
	v4l2_i2c_subdev_init(sd, client, &cx25840_ops);
1464 1465
	/* Note: revision '(device_id & 0x0f) == 2' was never built. The
	   marking skips from 0x1 == 22 to 0x3 == 23. */
1466
	v4l_info(client, "cx25%3x-2%x found @ 0x%x (%s)\n",
1467
		    (device_id & 0xfff0) >> 4,
1468
		    (device_id & 0x0f) < 3 ? (device_id & 0x0f) + 1 : (device_id & 0x0f),
1469
		    client->addr << 1, client->adapter->name);
1470

1471 1472
	state->c = client;
	state->is_cx25836 = ((device_id & 0xff00) == 0x8300);
1473
	state->is_cx23885 = (device_id == 0x0000) || (device_id == 0x1313);
1474 1475
	state->vid_input = CX25840_COMPOSITE7;
	state->aud_input = CX25840_AUDIO8;
1476
	state->audclk_freq = 48000;
1477
	state->pvr150_workaround = 0;
1478
	state->audmode = V4L2_TUNER_MODE_LANG1;
1479
	state->unmute_volume = -1;
1480 1481
	state->default_volume = 228 - cx25840_read(client, 0x8d4);
	state->default_volume = ((state->default_volume / 2) + 23) << 9;
1482
	state->vbi_line_offset = 8;
1483
	state->id = id;
1484
	state->rev = device_id;
1485

1486 1487 1488 1489 1490 1491
	if (state->is_cx23885) {
		/* Drive GPIO2 direction and values */
		cx25840_write(client, 0x160, 0x1d);
		cx25840_write(client, 0x164, 0x00);
	}

1492 1493 1494
	return 0;
}

1495
static int cx25840_remove(struct i2c_client *client)
1496
{
1497 1498 1499 1500
	struct v4l2_subdev *sd = i2c_get_clientdata(client);

	v4l2_device_unregister_subdev(sd);
	kfree(to_state(sd));
1501 1502 1503
	return 0;
}

1504 1505 1506 1507 1508 1509
static const struct i2c_device_id cx25840_id[] = {
	{ "cx25840", 0 },
	{ }
};
MODULE_DEVICE_TABLE(i2c, cx25840_id);

1510 1511 1512 1513
static struct v4l2_i2c_driver_data v4l2_i2c_data = {
	.name = "cx25840",
	.probe = cx25840_probe,
	.remove = cx25840_remove,
1514
	.id_table = cx25840_id,
1515
};