mirror of https://gitee.com/openkylin/linux.git
1157 lines
31 KiB
C
1157 lines
31 KiB
C
/* cx25840 - Conexant CX25840 audio/video decoder driver
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*
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* Copyright (C) 2004 Ulf Eklund
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*
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* Based on the saa7115 driver and on the first verison of Chris Kennedy's
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* cx25840 driver.
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*
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* Changes by Tyler Trafford <tatrafford@comcast.net>
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* - cleanup/rewrite for V4L2 API (2005)
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*
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* VBI support by Hans Verkuil <hverkuil@xs4all.nl>.
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*
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* NTSC sliced VBI support by Christopher Neufeld <television@cneufeld.ca>
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* with additional fixes by Hans Verkuil <hverkuil@xs4all.nl>.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*/
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#include <linux/kernel.h>
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#include <linux/module.h>
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#include <linux/slab.h>
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#include <linux/videodev2.h>
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#include <linux/i2c.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/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 unsigned short normal_i2c[] = { 0x88 >> 1, I2C_CLIENT_END };
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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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I2C_CLIENT_INSMOD;
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/* ----------------------------------------------------------------------- */
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int cx25840_write(struct i2c_client *client, u16 addr, u8 value)
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{
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u8 buffer[3];
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buffer[0] = addr >> 8;
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buffer[1] = addr & 0xff;
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buffer[2] = value;
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return i2c_master_send(client, buffer, 3);
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}
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int cx25840_write4(struct i2c_client *client, u16 addr, u32 value)
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{
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u8 buffer[6];
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buffer[0] = addr >> 8;
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buffer[1] = addr & 0xff;
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buffer[2] = value >> 24;
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buffer[3] = (value >> 16) & 0xff;
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buffer[4] = (value >> 8) & 0xff;
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buffer[5] = value & 0xff;
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return i2c_master_send(client, buffer, 6);
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}
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u8 cx25840_read(struct i2c_client * client, u16 addr)
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{
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u8 buffer[2];
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buffer[0] = addr >> 8;
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buffer[1] = addr & 0xff;
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if (i2c_master_send(client, buffer, 2) < 2)
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return 0;
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if (i2c_master_recv(client, buffer, 1) < 1)
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return 0;
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return buffer[0];
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}
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u32 cx25840_read4(struct i2c_client * client, u16 addr)
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{
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u8 buffer[4];
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buffer[0] = addr >> 8;
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buffer[1] = addr & 0xff;
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if (i2c_master_send(client, buffer, 2) < 2)
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return 0;
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if (i2c_master_recv(client, buffer, 4) < 4)
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return 0;
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return (buffer[3] << 24) | (buffer[2] << 16) |
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(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)
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{
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return cx25840_write(client, addr,
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(cx25840_read(client, addr) & and_mask) |
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or_value);
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}
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/* ----------------------------------------------------------------------- */
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static int set_input(struct i2c_client *client, enum cx25840_video_input vid_input,
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enum cx25840_audio_input aud_input);
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static void log_audio_status(struct i2c_client *client);
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static void log_video_status(struct i2c_client *client);
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/* ----------------------------------------------------------------------- */
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static void init_dll1(struct i2c_client *client)
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{
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/* This is the Hauppauge sequence used to
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* initialize the Delay Lock Loop 1 (ADC DLL). */
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cx25840_write(client, 0x159, 0x23);
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cx25840_write(client, 0x15a, 0x87);
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cx25840_write(client, 0x15b, 0x06);
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cx25840_write(client, 0x159, 0xe1);
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cx25840_write(client, 0x15a, 0x86);
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cx25840_write(client, 0x159, 0xe0);
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cx25840_write(client, 0x159, 0xe1);
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cx25840_write(client, 0x15b, 0x10);
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}
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static void init_dll2(struct i2c_client *client)
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{
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/* This is the Hauppauge sequence used to
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* initialize the Delay Lock Loop 2 (ADC DLL). */
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cx25840_write(client, 0x15d, 0xe3);
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cx25840_write(client, 0x15e, 0x86);
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cx25840_write(client, 0x15f, 0x06);
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cx25840_write(client, 0x15d, 0xe1);
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cx25840_write(client, 0x15d, 0xe0);
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cx25840_write(client, 0x15d, 0xe1);
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}
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static void cx25836_initialize(struct i2c_client *client)
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{
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/* reset configuration is described on page 3-77 of the CX25836 datasheet */
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/* 2. */
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cx25840_and_or(client, 0x000, ~0x01, 0x01);
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cx25840_and_or(client, 0x000, ~0x01, 0x00);
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/* 3a. */
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cx25840_and_or(client, 0x15a, ~0x70, 0x00);
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/* 3b. */
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cx25840_and_or(client, 0x15b, ~0x1e, 0x06);
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/* 3c. */
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cx25840_and_or(client, 0x159, ~0x02, 0x02);
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/* 3d. */
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/* There should be a 10-us delay here, but since the
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i2c bus already has a 10-us delay we don't need to do
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anything */
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/* 3e. */
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cx25840_and_or(client, 0x159, ~0x02, 0x00);
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/* 3f. */
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cx25840_and_or(client, 0x159, ~0xc0, 0xc0);
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/* 3g. */
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cx25840_and_or(client, 0x159, ~0x01, 0x00);
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cx25840_and_or(client, 0x159, ~0x01, 0x01);
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/* 3h. */
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cx25840_and_or(client, 0x15b, ~0x1e, 0x10);
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}
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static void cx25840_initialize(struct i2c_client *client, int loadfw)
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{
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struct cx25840_state *state = i2c_get_clientdata(client);
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/* datasheet startup in numbered steps, refer to page 3-77 */
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/* 2. */
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cx25840_and_or(client, 0x803, ~0x10, 0x00);
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/* The default of this register should be 4, but I get 0 instead.
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* Set this register to 4 manually. */
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cx25840_write(client, 0x000, 0x04);
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/* 3. */
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init_dll1(client);
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init_dll2(client);
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cx25840_write(client, 0x136, 0x0a);
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/* 4. */
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cx25840_write(client, 0x13c, 0x01);
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cx25840_write(client, 0x13c, 0x00);
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/* 5. */
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if (loadfw)
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cx25840_loadfw(client);
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/* 6. */
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cx25840_write(client, 0x115, 0x8c);
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cx25840_write(client, 0x116, 0x07);
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cx25840_write(client, 0x118, 0x02);
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/* 7. */
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cx25840_write(client, 0x4a5, 0x80);
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cx25840_write(client, 0x4a5, 0x00);
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cx25840_write(client, 0x402, 0x00);
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/* 8. */
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cx25840_and_or(client, 0x401, ~0x18, 0);
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cx25840_and_or(client, 0x4a2, ~0x10, 0x10);
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/* steps 8c and 8d are done in change_input() */
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/* 10. */
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cx25840_write(client, 0x8d3, 0x1f);
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cx25840_write(client, 0x8e3, 0x03);
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cx25840_vbi_setup(client);
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/* trial and error says these are needed to get audio */
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cx25840_write(client, 0x914, 0xa0);
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cx25840_write(client, 0x918, 0xa0);
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cx25840_write(client, 0x919, 0x01);
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/* stereo prefered */
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cx25840_write(client, 0x809, 0x04);
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/* AC97 shift */
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cx25840_write(client, 0x8cf, 0x0f);
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/* (re)set input */
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set_input(client, state->vid_input, state->aud_input);
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/* start microcontroller */
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cx25840_and_or(client, 0x803, ~0x10, 0x10);
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}
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/* ----------------------------------------------------------------------- */
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static void input_change(struct i2c_client *client)
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{
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struct cx25840_state *state = i2c_get_clientdata(client);
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v4l2_std_id std = cx25840_get_v4lstd(client);
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/* Follow step 8c and 8d of section 3.16 in the cx25840 datasheet */
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if (std & V4L2_STD_SECAM) {
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cx25840_write(client, 0x402, 0);
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}
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else {
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cx25840_write(client, 0x402, 0x04);
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cx25840_write(client, 0x49f, (std & V4L2_STD_NTSC) ? 0x14 : 0x11);
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}
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cx25840_and_or(client, 0x401, ~0x60, 0);
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cx25840_and_or(client, 0x401, ~0x60, 0x60);
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if (std & V4L2_STD_525_60) {
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/* Certain Hauppauge PVR150 models have a hardware bug
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that causes audio to drop out. For these models the
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audio standard must be set explicitly.
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To be precise: it affects cards with tuner models
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85, 99 and 112 (model numbers from tveeprom). */
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int hw_fix = state->pvr150_workaround;
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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);
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} else if (std == V4L2_STD_NTSC_M_KR) {
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/* South Korea uses A2 audio standard */
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cx25840_write(client, 0x808, hw_fix ? 0x3f : 0xf8);
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} else {
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/* 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) {
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/* Follow tuner change procedure for PAL */
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cx25840_write(client, 0x808, 0xff);
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cx25840_write(client, 0x80b, 0x10);
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} else if (std & V4L2_STD_SECAM) {
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/* Select autodetect for SECAM */
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cx25840_write(client, 0x808, 0xff);
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cx25840_write(client, 0x80b, 0x10);
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}
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if (cx25840_read(client, 0x803) & 0x10) {
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/* restart audio decoder microcontroller */
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cx25840_and_or(client, 0x803, ~0x10, 0x00);
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cx25840_and_or(client, 0x803, ~0x10, 0x10);
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}
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}
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static int set_input(struct i2c_client *client, enum cx25840_video_input vid_input,
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enum cx25840_audio_input aud_input)
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{
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struct cx25840_state *state = i2c_get_clientdata(client);
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u8 is_composite = (vid_input >= CX25840_COMPOSITE1 &&
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vid_input <= CX25840_COMPOSITE8);
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u8 reg;
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v4l_dbg(1, cx25840_debug, client, "decoder set video input %d, audio input %d\n",
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vid_input, aud_input);
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if (is_composite) {
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reg = 0xf0 + (vid_input - CX25840_COMPOSITE1);
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} else {
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int luma = vid_input & 0xf0;
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int chroma = vid_input & 0xf00;
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if ((vid_input & ~0xff0) ||
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luma < CX25840_SVIDEO_LUMA1 || luma > CX25840_SVIDEO_LUMA4 ||
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chroma < CX25840_SVIDEO_CHROMA4 || chroma > CX25840_SVIDEO_CHROMA8) {
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v4l_err(client, "0x%04x is not a valid video input!\n", vid_input);
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return -EINVAL;
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}
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reg = 0xf0 + ((luma - CX25840_SVIDEO_LUMA1) >> 4);
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if (chroma >= CX25840_SVIDEO_CHROMA7) {
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reg &= 0x3f;
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reg |= (chroma - CX25840_SVIDEO_CHROMA7) >> 2;
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} else {
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reg &= 0xcf;
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reg |= (chroma - CX25840_SVIDEO_CHROMA4) >> 4;
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}
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}
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switch (aud_input) {
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case CX25840_AUDIO_SERIAL:
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/* do nothing, use serial audio input */
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break;
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case CX25840_AUDIO4: reg &= ~0x30; break;
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case CX25840_AUDIO5: reg &= ~0x30; reg |= 0x10; break;
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case CX25840_AUDIO6: reg &= ~0x30; reg |= 0x20; break;
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case CX25840_AUDIO7: reg &= ~0xc0; break;
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case CX25840_AUDIO8: reg &= ~0xc0; reg |= 0x40; break;
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default:
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v4l_err(client, "0x%04x is not a valid audio input!\n", aud_input);
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return -EINVAL;
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}
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cx25840_write(client, 0x103, reg);
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/* Set INPUT_MODE to Composite (0) or S-Video (1) */
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cx25840_and_or(client, 0x401, ~0x6, is_composite ? 0 : 0x02);
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/* Set CH_SEL_ADC2 to 1 if input comes from CH3 */
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cx25840_and_or(client, 0x102, ~0x2, (reg & 0x80) == 0 ? 2 : 0);
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/* Set DUAL_MODE_ADC2 to 1 if input comes from both CH2 and CH3 */
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if ((reg & 0xc0) != 0xc0 && (reg & 0x30) != 0x30)
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cx25840_and_or(client, 0x102, ~0x4, 4);
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else
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cx25840_and_or(client, 0x102, ~0x4, 0);
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state->vid_input = vid_input;
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state->aud_input = aud_input;
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if (!state->is_cx25836) {
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cx25840_audio_set_path(client);
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input_change(client);
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}
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return 0;
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}
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/* ----------------------------------------------------------------------- */
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static int set_v4lstd(struct i2c_client *client, v4l2_std_id std)
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{
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u8 fmt=0; /* zero is autodetect */
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/* First tests should be against specific std */
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if (std == V4L2_STD_NTSC_M_JP) {
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fmt=0x2;
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} else if (std == V4L2_STD_NTSC_443) {
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fmt=0x3;
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} else if (std == V4L2_STD_PAL_M) {
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fmt=0x5;
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} else if (std == V4L2_STD_PAL_N) {
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fmt=0x6;
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} else if (std == V4L2_STD_PAL_Nc) {
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fmt=0x7;
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} else if (std == V4L2_STD_PAL_60) {
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fmt=0x8;
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} else {
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/* Then, test against generic ones */
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if (std & V4L2_STD_NTSC) {
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fmt=0x1;
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} else if (std & V4L2_STD_PAL) {
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fmt=0x4;
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} else if (std & V4L2_STD_SECAM) {
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fmt=0xc;
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}
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}
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v4l_dbg(1, cx25840_debug, client, "changing video std to fmt %i\n",fmt);
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/* Follow step 9 of section 3.16 in the cx25840 datasheet.
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Without this PAL may display a vertical ghosting effect.
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This happens for example with the Yuan MPC622. */
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if (fmt >= 4 && fmt < 8) {
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/* Set format to NTSC-M */
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cx25840_and_or(client, 0x400, ~0xf, 1);
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/* Turn off LCOMB */
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cx25840_and_or(client, 0x47b, ~6, 0);
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}
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cx25840_and_or(client, 0x400, ~0xf, fmt);
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cx25840_vbi_setup(client);
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return 0;
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}
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v4l2_std_id cx25840_get_v4lstd(struct i2c_client * client)
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{
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struct cx25840_state *state = i2c_get_clientdata(client);
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/* check VID_FMT_SEL first */
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u8 fmt = cx25840_read(client, 0x400) & 0xf;
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if (!fmt) {
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/* check AFD_FMT_STAT if set to autodetect */
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fmt = cx25840_read(client, 0x40d) & 0xf;
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}
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switch (fmt) {
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case 0x1:
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{
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/* if the audio std is A2-M, then this is the South Korean
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NTSC standard */
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if (!state->is_cx25836 && cx25840_read(client, 0x805) == 2)
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return V4L2_STD_NTSC_M_KR;
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return V4L2_STD_NTSC_M;
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}
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case 0x2: return V4L2_STD_NTSC_M_JP;
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case 0x3: return V4L2_STD_NTSC_443;
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case 0x4: return V4L2_STD_PAL;
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case 0x5: return V4L2_STD_PAL_M;
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case 0x6: return V4L2_STD_PAL_N;
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case 0x7: return V4L2_STD_PAL_Nc;
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case 0x8: return V4L2_STD_PAL_60;
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case 0xc: return V4L2_STD_SECAM;
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default: return V4L2_STD_UNKNOWN;
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}
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}
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/* ----------------------------------------------------------------------- */
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static int set_v4lctrl(struct i2c_client *client, struct v4l2_control *ctrl)
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{
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struct cx25840_state *state = i2c_get_clientdata(client);
|
|
|
|
switch (ctrl->id) {
|
|
case CX25840_CID_ENABLE_PVR150_WORKAROUND:
|
|
state->pvr150_workaround = ctrl->value;
|
|
set_input(client, state->vid_input, state->aud_input);
|
|
break;
|
|
|
|
case V4L2_CID_BRIGHTNESS:
|
|
if (ctrl->value < 0 || ctrl->value > 255) {
|
|
v4l_err(client, "invalid brightness setting %d\n",
|
|
ctrl->value);
|
|
return -ERANGE;
|
|
}
|
|
|
|
cx25840_write(client, 0x414, ctrl->value - 128);
|
|
break;
|
|
|
|
case V4L2_CID_CONTRAST:
|
|
if (ctrl->value < 0 || ctrl->value > 127) {
|
|
v4l_err(client, "invalid contrast setting %d\n",
|
|
ctrl->value);
|
|
return -ERANGE;
|
|
}
|
|
|
|
cx25840_write(client, 0x415, ctrl->value << 1);
|
|
break;
|
|
|
|
case V4L2_CID_SATURATION:
|
|
if (ctrl->value < 0 || ctrl->value > 127) {
|
|
v4l_err(client, "invalid saturation setting %d\n",
|
|
ctrl->value);
|
|
return -ERANGE;
|
|
}
|
|
|
|
cx25840_write(client, 0x420, ctrl->value << 1);
|
|
cx25840_write(client, 0x421, ctrl->value << 1);
|
|
break;
|
|
|
|
case V4L2_CID_HUE:
|
|
if (ctrl->value < -127 || ctrl->value > 127) {
|
|
v4l_err(client, "invalid hue setting %d\n", ctrl->value);
|
|
return -ERANGE;
|
|
}
|
|
|
|
cx25840_write(client, 0x422, ctrl->value);
|
|
break;
|
|
|
|
case V4L2_CID_AUDIO_VOLUME:
|
|
case V4L2_CID_AUDIO_BASS:
|
|
case V4L2_CID_AUDIO_TREBLE:
|
|
case V4L2_CID_AUDIO_BALANCE:
|
|
case V4L2_CID_AUDIO_MUTE:
|
|
if (state->is_cx25836)
|
|
return -EINVAL;
|
|
return cx25840_audio(client, VIDIOC_S_CTRL, ctrl);
|
|
|
|
default:
|
|
return -EINVAL;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int get_v4lctrl(struct i2c_client *client, struct v4l2_control *ctrl)
|
|
{
|
|
struct cx25840_state *state = i2c_get_clientdata(client);
|
|
|
|
switch (ctrl->id) {
|
|
case CX25840_CID_ENABLE_PVR150_WORKAROUND:
|
|
ctrl->value = state->pvr150_workaround;
|
|
break;
|
|
case V4L2_CID_BRIGHTNESS:
|
|
ctrl->value = (s8)cx25840_read(client, 0x414) + 128;
|
|
break;
|
|
case V4L2_CID_CONTRAST:
|
|
ctrl->value = cx25840_read(client, 0x415) >> 1;
|
|
break;
|
|
case V4L2_CID_SATURATION:
|
|
ctrl->value = cx25840_read(client, 0x420) >> 1;
|
|
break;
|
|
case V4L2_CID_HUE:
|
|
ctrl->value = (s8)cx25840_read(client, 0x422);
|
|
break;
|
|
case V4L2_CID_AUDIO_VOLUME:
|
|
case V4L2_CID_AUDIO_BASS:
|
|
case V4L2_CID_AUDIO_TREBLE:
|
|
case V4L2_CID_AUDIO_BALANCE:
|
|
case V4L2_CID_AUDIO_MUTE:
|
|
if (state->is_cx25836)
|
|
return -EINVAL;
|
|
return cx25840_audio(client, VIDIOC_G_CTRL, ctrl);
|
|
default:
|
|
return -EINVAL;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
/* ----------------------------------------------------------------------- */
|
|
|
|
static int get_v4lfmt(struct i2c_client *client, struct v4l2_format *fmt)
|
|
{
|
|
switch (fmt->type) {
|
|
case V4L2_BUF_TYPE_SLICED_VBI_CAPTURE:
|
|
return cx25840_vbi(client, VIDIOC_G_FMT, fmt);
|
|
default:
|
|
return -EINVAL;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int set_v4lfmt(struct i2c_client *client, struct v4l2_format *fmt)
|
|
{
|
|
struct v4l2_pix_format *pix;
|
|
int HSC, VSC, Vsrc, Hsrc, filter, Vlines;
|
|
int is_50Hz = !(cx25840_get_v4lstd(client) & V4L2_STD_525_60);
|
|
|
|
switch (fmt->type) {
|
|
case V4L2_BUF_TYPE_VIDEO_CAPTURE:
|
|
pix = &(fmt->fmt.pix);
|
|
|
|
Vsrc = (cx25840_read(client, 0x476) & 0x3f) << 4;
|
|
Vsrc |= (cx25840_read(client, 0x475) & 0xf0) >> 4;
|
|
|
|
Hsrc = (cx25840_read(client, 0x472) & 0x3f) << 4;
|
|
Hsrc |= (cx25840_read(client, 0x471) & 0xf0) >> 4;
|
|
|
|
Vlines = pix->height + (is_50Hz ? 4 : 7);
|
|
|
|
if ((pix->width * 16 < Hsrc) || (Hsrc < pix->width) ||
|
|
(Vlines * 8 < Vsrc) || (Vsrc < Vlines)) {
|
|
v4l_err(client, "%dx%d is not a valid size!\n",
|
|
pix->width, pix->height);
|
|
return -ERANGE;
|
|
}
|
|
|
|
HSC = (Hsrc * (1 << 20)) / pix->width - (1 << 20);
|
|
VSC = (1 << 16) - (Vsrc * (1 << 9) / Vlines - (1 << 9));
|
|
VSC &= 0x1fff;
|
|
|
|
if (pix->width >= 385)
|
|
filter = 0;
|
|
else if (pix->width > 192)
|
|
filter = 1;
|
|
else if (pix->width > 96)
|
|
filter = 2;
|
|
else
|
|
filter = 3;
|
|
|
|
v4l_dbg(1, cx25840_debug, client, "decoder set size %dx%d -> scale %ux%u\n",
|
|
pix->width, pix->height, HSC, VSC);
|
|
|
|
/* HSCALE=HSC */
|
|
cx25840_write(client, 0x418, HSC & 0xff);
|
|
cx25840_write(client, 0x419, (HSC >> 8) & 0xff);
|
|
cx25840_write(client, 0x41a, HSC >> 16);
|
|
/* VSCALE=VSC */
|
|
cx25840_write(client, 0x41c, VSC & 0xff);
|
|
cx25840_write(client, 0x41d, VSC >> 8);
|
|
/* VS_INTRLACE=1 VFILT=filter */
|
|
cx25840_write(client, 0x41e, 0x8 | filter);
|
|
break;
|
|
|
|
case V4L2_BUF_TYPE_SLICED_VBI_CAPTURE:
|
|
return cx25840_vbi(client, VIDIOC_S_FMT, fmt);
|
|
|
|
case V4L2_BUF_TYPE_VBI_CAPTURE:
|
|
return cx25840_vbi(client, VIDIOC_S_FMT, fmt);
|
|
|
|
default:
|
|
return -EINVAL;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
/* ----------------------------------------------------------------------- */
|
|
|
|
static int cx25840_command(struct i2c_client *client, unsigned int cmd,
|
|
void *arg)
|
|
{
|
|
struct cx25840_state *state = i2c_get_clientdata(client);
|
|
struct v4l2_tuner *vt = arg;
|
|
struct v4l2_routing *route = arg;
|
|
|
|
switch (cmd) {
|
|
#ifdef CONFIG_VIDEO_ADV_DEBUG
|
|
/* ioctls to allow direct access to the
|
|
* cx25840 registers for testing */
|
|
case VIDIOC_DBG_G_REGISTER:
|
|
case VIDIOC_DBG_S_REGISTER:
|
|
{
|
|
struct v4l2_register *reg = arg;
|
|
|
|
if (!v4l2_chip_match_i2c_client(client, reg->match_type, reg->match_chip))
|
|
return -EINVAL;
|
|
if (!capable(CAP_SYS_ADMIN))
|
|
return -EPERM;
|
|
if (cmd == VIDIOC_DBG_G_REGISTER)
|
|
reg->val = cx25840_read(client, reg->reg & 0x0fff);
|
|
else
|
|
cx25840_write(client, reg->reg & 0x0fff, reg->val & 0xff);
|
|
break;
|
|
}
|
|
#endif
|
|
|
|
case VIDIOC_INT_DECODE_VBI_LINE:
|
|
return cx25840_vbi(client, cmd, arg);
|
|
|
|
case VIDIOC_INT_AUDIO_CLOCK_FREQ:
|
|
return cx25840_audio(client, cmd, arg);
|
|
|
|
case VIDIOC_STREAMON:
|
|
v4l_dbg(1, cx25840_debug, client, "enable output\n");
|
|
cx25840_write(client, 0x115, state->is_cx25836 ? 0x0c : 0x8c);
|
|
cx25840_write(client, 0x116, state->is_cx25836 ? 0x04 : 0x07);
|
|
break;
|
|
|
|
case VIDIOC_STREAMOFF:
|
|
v4l_dbg(1, cx25840_debug, client, "disable output\n");
|
|
cx25840_write(client, 0x115, 0x00);
|
|
cx25840_write(client, 0x116, 0x00);
|
|
break;
|
|
|
|
case VIDIOC_LOG_STATUS:
|
|
log_video_status(client);
|
|
if (!state->is_cx25836)
|
|
log_audio_status(client);
|
|
break;
|
|
|
|
case VIDIOC_G_CTRL:
|
|
return get_v4lctrl(client, (struct v4l2_control *)arg);
|
|
|
|
case VIDIOC_S_CTRL:
|
|
return set_v4lctrl(client, (struct v4l2_control *)arg);
|
|
|
|
case VIDIOC_QUERYCTRL:
|
|
{
|
|
struct v4l2_queryctrl *qc = arg;
|
|
|
|
switch (qc->id) {
|
|
case V4L2_CID_BRIGHTNESS:
|
|
case V4L2_CID_CONTRAST:
|
|
case V4L2_CID_SATURATION:
|
|
case V4L2_CID_HUE:
|
|
return v4l2_ctrl_query_fill_std(qc);
|
|
default:
|
|
break;
|
|
}
|
|
if (state->is_cx25836)
|
|
return -EINVAL;
|
|
|
|
switch (qc->id) {
|
|
case V4L2_CID_AUDIO_VOLUME:
|
|
case V4L2_CID_AUDIO_MUTE:
|
|
case V4L2_CID_AUDIO_BALANCE:
|
|
case V4L2_CID_AUDIO_BASS:
|
|
case V4L2_CID_AUDIO_TREBLE:
|
|
return v4l2_ctrl_query_fill_std(qc);
|
|
default:
|
|
return -EINVAL;
|
|
}
|
|
return -EINVAL;
|
|
}
|
|
|
|
case VIDIOC_G_STD:
|
|
*(v4l2_std_id *)arg = cx25840_get_v4lstd(client);
|
|
break;
|
|
|
|
case VIDIOC_S_STD:
|
|
state->radio = 0;
|
|
return set_v4lstd(client, *(v4l2_std_id *)arg);
|
|
|
|
case AUDC_SET_RADIO:
|
|
state->radio = 1;
|
|
break;
|
|
|
|
case VIDIOC_INT_G_VIDEO_ROUTING:
|
|
route->input = state->vid_input;
|
|
route->output = 0;
|
|
break;
|
|
|
|
case VIDIOC_INT_S_VIDEO_ROUTING:
|
|
return set_input(client, route->input, state->aud_input);
|
|
|
|
case VIDIOC_INT_G_AUDIO_ROUTING:
|
|
if (state->is_cx25836)
|
|
return -EINVAL;
|
|
route->input = state->aud_input;
|
|
route->output = 0;
|
|
break;
|
|
|
|
case VIDIOC_INT_S_AUDIO_ROUTING:
|
|
if (state->is_cx25836)
|
|
return -EINVAL;
|
|
return set_input(client, state->vid_input, route->input);
|
|
|
|
case VIDIOC_S_FREQUENCY:
|
|
if (!state->is_cx25836) {
|
|
input_change(client);
|
|
}
|
|
break;
|
|
|
|
case VIDIOC_G_TUNER:
|
|
{
|
|
u8 vpres = cx25840_read(client, 0x40e) & 0x20;
|
|
u8 mode;
|
|
int val = 0;
|
|
|
|
if (state->radio)
|
|
break;
|
|
|
|
vt->signal = vpres ? 0xffff : 0x0;
|
|
if (state->is_cx25836)
|
|
break;
|
|
|
|
vt->capability |=
|
|
V4L2_TUNER_CAP_STEREO | V4L2_TUNER_CAP_LANG1 |
|
|
V4L2_TUNER_CAP_LANG2 | V4L2_TUNER_CAP_SAP;
|
|
|
|
mode = cx25840_read(client, 0x804);
|
|
|
|
/* get rxsubchans and audmode */
|
|
if ((mode & 0xf) == 1)
|
|
val |= V4L2_TUNER_SUB_STEREO;
|
|
else
|
|
val |= V4L2_TUNER_SUB_MONO;
|
|
|
|
if (mode == 2 || mode == 4)
|
|
val = V4L2_TUNER_SUB_LANG1 | V4L2_TUNER_SUB_LANG2;
|
|
|
|
if (mode & 0x10)
|
|
val |= V4L2_TUNER_SUB_SAP;
|
|
|
|
vt->rxsubchans = val;
|
|
vt->audmode = state->audmode;
|
|
break;
|
|
}
|
|
|
|
case VIDIOC_S_TUNER:
|
|
if (state->radio || state->is_cx25836)
|
|
break;
|
|
|
|
switch (vt->audmode) {
|
|
case V4L2_TUNER_MODE_MONO:
|
|
/* mono -> mono
|
|
stereo -> mono
|
|
bilingual -> lang1 */
|
|
cx25840_and_or(client, 0x809, ~0xf, 0x00);
|
|
break;
|
|
case V4L2_TUNER_MODE_STEREO:
|
|
case V4L2_TUNER_MODE_LANG1:
|
|
/* mono -> mono
|
|
stereo -> stereo
|
|
bilingual -> lang1 */
|
|
cx25840_and_or(client, 0x809, ~0xf, 0x04);
|
|
break;
|
|
case V4L2_TUNER_MODE_LANG1_LANG2:
|
|
/* mono -> mono
|
|
stereo -> stereo
|
|
bilingual -> lang1/lang2 */
|
|
cx25840_and_or(client, 0x809, ~0xf, 0x07);
|
|
break;
|
|
case V4L2_TUNER_MODE_LANG2:
|
|
/* mono -> mono
|
|
stereo -> stereo
|
|
bilingual -> lang2 */
|
|
cx25840_and_or(client, 0x809, ~0xf, 0x01);
|
|
break;
|
|
default:
|
|
return -EINVAL;
|
|
}
|
|
state->audmode = vt->audmode;
|
|
break;
|
|
|
|
case VIDIOC_G_FMT:
|
|
return get_v4lfmt(client, (struct v4l2_format *)arg);
|
|
|
|
case VIDIOC_S_FMT:
|
|
return set_v4lfmt(client, (struct v4l2_format *)arg);
|
|
|
|
case VIDIOC_INT_RESET:
|
|
if (state->is_cx25836)
|
|
cx25836_initialize(client);
|
|
else
|
|
cx25840_initialize(client, 0);
|
|
break;
|
|
|
|
case VIDIOC_G_CHIP_IDENT:
|
|
return v4l2_chip_ident_i2c_client(client, arg, state->id, state->rev);
|
|
|
|
default:
|
|
return -EINVAL;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
/* ----------------------------------------------------------------------- */
|
|
|
|
static struct i2c_driver i2c_driver_cx25840;
|
|
|
|
static int cx25840_detect_client(struct i2c_adapter *adapter, int address,
|
|
int kind)
|
|
{
|
|
struct i2c_client *client;
|
|
struct cx25840_state *state;
|
|
u32 id;
|
|
u16 device_id;
|
|
|
|
/* Check if the adapter supports the needed features
|
|
* Not until kernel version 2.6.11 did the bit-algo
|
|
* correctly report that it would do an I2C-level xfer */
|
|
if (!i2c_check_functionality(adapter, I2C_FUNC_I2C))
|
|
return 0;
|
|
|
|
state = kzalloc(sizeof(struct cx25840_state), GFP_KERNEL);
|
|
if (state == 0)
|
|
return -ENOMEM;
|
|
|
|
client = &state->c;
|
|
client->addr = address;
|
|
client->adapter = adapter;
|
|
client->driver = &i2c_driver_cx25840;
|
|
snprintf(client->name, sizeof(client->name) - 1, "cx25840");
|
|
|
|
v4l_dbg(1, cx25840_debug, client, "detecting cx25840 client on address 0x%x\n", address << 1);
|
|
|
|
device_id = cx25840_read(client, 0x101) << 8;
|
|
device_id |= cx25840_read(client, 0x100);
|
|
|
|
/* The high byte of the device ID should be
|
|
* 0x83 for the cx2583x and 0x84 for the cx2584x */
|
|
if ((device_id & 0xff00) == 0x8300) {
|
|
id = V4L2_IDENT_CX25836 + ((device_id >> 4) & 0xf) - 6;
|
|
state->is_cx25836 = 1;
|
|
}
|
|
else if ((device_id & 0xff00) == 0x8400) {
|
|
id = V4L2_IDENT_CX25840 + ((device_id >> 4) & 0xf);
|
|
state->is_cx25836 = 0;
|
|
}
|
|
else {
|
|
v4l_dbg(1, cx25840_debug, client, "cx25840 not found\n");
|
|
kfree(state);
|
|
return 0;
|
|
}
|
|
|
|
/* Note: revision '(device_id & 0x0f) == 2' was never built. The
|
|
marking skips from 0x1 == 22 to 0x3 == 23. */
|
|
v4l_info(client, "cx25%3x-2%x found @ 0x%x (%s)\n",
|
|
(device_id & 0xfff0) >> 4,
|
|
(device_id & 0x0f) < 3 ? (device_id & 0x0f) + 1 : (device_id & 0x0f),
|
|
address << 1, adapter->name);
|
|
|
|
i2c_set_clientdata(client, state);
|
|
state->vid_input = CX25840_COMPOSITE7;
|
|
state->aud_input = CX25840_AUDIO8;
|
|
state->audclk_freq = 48000;
|
|
state->pvr150_workaround = 0;
|
|
state->audmode = V4L2_TUNER_MODE_LANG1;
|
|
state->vbi_line_offset = 8;
|
|
state->id = id;
|
|
state->rev = device_id;
|
|
|
|
i2c_attach_client(client);
|
|
|
|
if (state->is_cx25836)
|
|
cx25836_initialize(client);
|
|
else
|
|
cx25840_initialize(client, 1);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int cx25840_attach_adapter(struct i2c_adapter *adapter)
|
|
{
|
|
if (adapter->class & I2C_CLASS_TV_ANALOG)
|
|
return i2c_probe(adapter, &addr_data, &cx25840_detect_client);
|
|
return 0;
|
|
}
|
|
|
|
static int cx25840_detach_client(struct i2c_client *client)
|
|
{
|
|
struct cx25840_state *state = i2c_get_clientdata(client);
|
|
int err;
|
|
|
|
err = i2c_detach_client(client);
|
|
if (err) {
|
|
return err;
|
|
}
|
|
|
|
kfree(state);
|
|
|
|
return 0;
|
|
}
|
|
|
|
/* ----------------------------------------------------------------------- */
|
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static struct i2c_driver i2c_driver_cx25840 = {
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.driver = {
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.name = "cx25840",
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},
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.id = I2C_DRIVERID_CX25840,
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.attach_adapter = cx25840_attach_adapter,
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.detach_client = cx25840_detach_client,
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.command = cx25840_command,
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};
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static int __init m__init(void)
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{
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return i2c_add_driver(&i2c_driver_cx25840);
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}
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static void __exit m__exit(void)
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{
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i2c_del_driver(&i2c_driver_cx25840);
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}
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module_init(m__init);
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module_exit(m__exit);
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/* ----------------------------------------------------------------------- */
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static void log_video_status(struct i2c_client *client)
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{
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static const char *const fmt_strs[] = {
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"0x0",
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"NTSC-M", "NTSC-J", "NTSC-4.43",
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"PAL-BDGHI", "PAL-M", "PAL-N", "PAL-Nc", "PAL-60",
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"0x9", "0xA", "0xB",
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"SECAM",
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"0xD", "0xE", "0xF"
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};
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struct cx25840_state *state = i2c_get_clientdata(client);
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u8 vidfmt_sel = cx25840_read(client, 0x400) & 0xf;
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u8 gen_stat1 = cx25840_read(client, 0x40d);
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u8 gen_stat2 = cx25840_read(client, 0x40e);
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int vid_input = state->vid_input;
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v4l_info(client, "Video signal: %spresent\n",
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(gen_stat2 & 0x20) ? "" : "not ");
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v4l_info(client, "Detected format: %s\n",
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fmt_strs[gen_stat1 & 0xf]);
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v4l_info(client, "Specified standard: %s\n",
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vidfmt_sel ? fmt_strs[vidfmt_sel] : "automatic detection");
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if (vid_input >= CX25840_COMPOSITE1 &&
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vid_input <= CX25840_COMPOSITE8) {
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v4l_info(client, "Specified video input: Composite %d\n",
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vid_input - CX25840_COMPOSITE1 + 1);
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} else {
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v4l_info(client, "Specified video input: S-Video (Luma In%d, Chroma In%d)\n",
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(vid_input & 0xf0) >> 4, (vid_input & 0xf00) >> 8);
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}
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v4l_info(client, "Specified audioclock freq: %d Hz\n", state->audclk_freq);
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}
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/* ----------------------------------------------------------------------- */
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static void log_audio_status(struct i2c_client *client)
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{
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struct cx25840_state *state = i2c_get_clientdata(client);
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u8 download_ctl = cx25840_read(client, 0x803);
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u8 mod_det_stat0 = cx25840_read(client, 0x804);
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u8 mod_det_stat1 = cx25840_read(client, 0x805);
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u8 audio_config = cx25840_read(client, 0x808);
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u8 pref_mode = cx25840_read(client, 0x809);
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u8 afc0 = cx25840_read(client, 0x80b);
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u8 mute_ctl = cx25840_read(client, 0x8d3);
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int aud_input = state->aud_input;
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char *p;
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switch (mod_det_stat0) {
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case 0x00: p = "mono"; break;
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case 0x01: p = "stereo"; break;
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case 0x02: p = "dual"; break;
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case 0x04: p = "tri"; break;
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case 0x10: p = "mono with SAP"; break;
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case 0x11: p = "stereo with SAP"; break;
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case 0x12: p = "dual with SAP"; break;
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case 0x14: p = "tri with SAP"; break;
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case 0xfe: p = "forced mode"; break;
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default: p = "not defined";
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}
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v4l_info(client, "Detected audio mode: %s\n", p);
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switch (mod_det_stat1) {
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case 0x00: p = "not defined"; break;
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case 0x01: p = "EIAJ"; break;
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case 0x02: p = "A2-M"; break;
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case 0x03: p = "A2-BG"; break;
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case 0x04: p = "A2-DK1"; break;
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case 0x05: p = "A2-DK2"; break;
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case 0x06: p = "A2-DK3"; break;
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case 0x07: p = "A1 (6.0 MHz FM Mono)"; break;
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case 0x08: p = "AM-L"; break;
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case 0x09: p = "NICAM-BG"; break;
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case 0x0a: p = "NICAM-DK"; break;
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case 0x0b: p = "NICAM-I"; break;
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case 0x0c: p = "NICAM-L"; break;
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case 0x0d: p = "BTSC/EIAJ/A2-M Mono (4.5 MHz FMMono)"; break;
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case 0x0e: p = "IF FM Radio"; break;
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case 0x0f: p = "BTSC"; break;
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case 0x10: p = "high-deviation FM"; break;
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case 0x11: p = "very high-deviation FM"; break;
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case 0xfd: p = "unknown audio standard"; break;
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case 0xfe: p = "forced audio standard"; break;
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case 0xff: p = "no detected audio standard"; break;
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default: p = "not defined";
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}
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v4l_info(client, "Detected audio standard: %s\n", p);
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v4l_info(client, "Audio muted: %s\n",
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(mute_ctl & 0x2) ? "yes" : "no");
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v4l_info(client, "Audio microcontroller: %s\n",
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(download_ctl & 0x10) ? "running" : "stopped");
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switch (audio_config >> 4) {
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case 0x00: p = "undefined"; break;
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case 0x01: p = "BTSC"; break;
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case 0x02: p = "EIAJ"; break;
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case 0x03: p = "A2-M"; break;
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case 0x04: p = "A2-BG"; break;
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case 0x05: p = "A2-DK1"; break;
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case 0x06: p = "A2-DK2"; break;
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case 0x07: p = "A2-DK3"; break;
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case 0x08: p = "A1 (6.0 MHz FM Mono)"; break;
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case 0x09: p = "AM-L"; break;
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case 0x0a: p = "NICAM-BG"; break;
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case 0x0b: p = "NICAM-DK"; break;
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case 0x0c: p = "NICAM-I"; break;
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case 0x0d: p = "NICAM-L"; break;
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case 0x0e: p = "FM radio"; break;
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case 0x0f: p = "automatic detection"; break;
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default: p = "undefined";
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}
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v4l_info(client, "Configured audio standard: %s\n", p);
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if ((audio_config >> 4) < 0xF) {
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switch (audio_config & 0xF) {
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case 0x00: p = "MONO1 (LANGUAGE A/Mono L+R channel for BTSC, EIAJ, A2)"; break;
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case 0x01: p = "MONO2 (LANGUAGE B)"; break;
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case 0x02: p = "MONO3 (STEREO forced MONO)"; break;
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case 0x03: p = "MONO4 (NICAM ANALOG-Language C/Analog Fallback)"; break;
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case 0x04: p = "STEREO"; break;
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case 0x05: p = "DUAL1 (AB)"; break;
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case 0x06: p = "DUAL2 (AC) (FM)"; break;
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case 0x07: p = "DUAL3 (BC) (FM)"; break;
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case 0x08: p = "DUAL4 (AC) (AM)"; break;
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case 0x09: p = "DUAL5 (BC) (AM)"; break;
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case 0x0a: p = "SAP"; break;
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default: p = "undefined";
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}
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v4l_info(client, "Configured audio mode: %s\n", p);
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} else {
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switch (audio_config & 0xF) {
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case 0x00: p = "BG"; break;
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case 0x01: p = "DK1"; break;
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case 0x02: p = "DK2"; break;
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case 0x03: p = "DK3"; break;
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case 0x04: p = "I"; break;
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case 0x05: p = "L"; break;
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case 0x06: p = "BTSC"; break;
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case 0x07: p = "EIAJ"; break;
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case 0x08: p = "A2-M"; break;
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case 0x09: p = "FM Radio"; break;
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case 0x0f: p = "automatic standard and mode detection"; break;
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default: p = "undefined";
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}
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v4l_info(client, "Configured audio system: %s\n", p);
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}
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if (aud_input) {
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v4l_info(client, "Specified audio input: Tuner (In%d)\n", aud_input);
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} else {
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v4l_info(client, "Specified audio input: External\n");
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}
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switch (pref_mode & 0xf) {
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case 0: p = "mono/language A"; break;
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case 1: p = "language B"; break;
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case 2: p = "language C"; break;
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case 3: p = "analog fallback"; break;
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case 4: p = "stereo"; break;
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case 5: p = "language AC"; break;
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case 6: p = "language BC"; break;
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case 7: p = "language AB"; break;
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default: p = "undefined";
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}
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v4l_info(client, "Preferred audio mode: %s\n", p);
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if ((audio_config & 0xf) == 0xf) {
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switch ((afc0 >> 3) & 0x3) {
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case 0: p = "system DK"; break;
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case 1: p = "system L"; break;
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case 2: p = "autodetect"; break;
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default: p = "undefined";
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}
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v4l_info(client, "Selected 65 MHz format: %s\n", p);
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switch (afc0 & 0x7) {
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case 0: p = "chroma"; break;
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case 1: p = "BTSC"; break;
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case 2: p = "EIAJ"; break;
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case 3: p = "A2-M"; break;
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case 4: p = "autodetect"; break;
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default: p = "undefined";
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}
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v4l_info(client, "Selected 45 MHz format: %s\n", p);
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}
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}
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