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|
/*
* Driver for Xceive XC5000 "QAM/8VSB single chip tuner"
*
* Copyright (c) 2007 Xceive Corporation
* Copyright (c) 2007 Steven Toth <stoth@linuxtv.org>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
*
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/videodev2.h>
#include <linux/delay.h>
#include <linux/dvb/frontend.h>
#include <linux/i2c.h>
#include "dvb_frontend.h"
#include "xc5000.h"
#include "xc5000_priv.h"
static int debug;
module_param(debug, int, 0644);
MODULE_PARM_DESC(debug, "Turn on/off debugging (default:off).");
static int xc5000_load_fw_on_attach;
module_param_named(init_fw, xc5000_load_fw_on_attach, int, 0644);
MODULE_PARM_DESC(init_fw, "Load firmware during driver initialization.");
#define dprintk(level,fmt, arg...) if (debug >= level) \
printk(KERN_INFO "%s: " fmt, "xc5000", ## arg)
#define XC5000_DEFAULT_FIRMWARE "dvb-fe-xc5000-1.1.fw"
#define XC5000_DEFAULT_FIRMWARE_SIZE 12332
/* Misc Defines */
#define MAX_TV_STANDARD 23
#define XC_MAX_I2C_WRITE_LENGTH 64
/* Signal Types */
#define XC_RF_MODE_AIR 0
#define XC_RF_MODE_CABLE 1
/* Result codes */
#define XC_RESULT_SUCCESS 0
#define XC_RESULT_RESET_FAILURE 1
#define XC_RESULT_I2C_WRITE_FAILURE 2
#define XC_RESULT_I2C_READ_FAILURE 3
#define XC_RESULT_OUT_OF_RANGE 5
/* Product id */
#define XC_PRODUCT_ID_FW_NOT_LOADED 0x2000
#define XC_PRODUCT_ID_FW_LOADED 0x1388
/* Registers */
#define XREG_INIT 0x00
#define XREG_VIDEO_MODE 0x01
#define XREG_AUDIO_MODE 0x02
#define XREG_RF_FREQ 0x03
#define XREG_D_CODE 0x04
#define XREG_IF_OUT 0x05
#define XREG_SEEK_MODE 0x07
#define XREG_POWER_DOWN 0x0A
#define XREG_SIGNALSOURCE 0x0D /* 0=Air, 1=Cable */
#define XREG_SMOOTHEDCVBS 0x0E
#define XREG_XTALFREQ 0x0F
#define XREG_FINERFFREQ 0x10
#define XREG_DDIMODE 0x11
#define XREG_ADC_ENV 0x00
#define XREG_QUALITY 0x01
#define XREG_FRAME_LINES 0x02
#define XREG_HSYNC_FREQ 0x03
#define XREG_LOCK 0x04
#define XREG_FREQ_ERROR 0x05
#define XREG_SNR 0x06
#define XREG_VERSION 0x07
#define XREG_PRODUCT_ID 0x08
#define XREG_BUSY 0x09
/*
Basic firmware description. This will remain with
the driver for documentation purposes.
This represents an I2C firmware file encoded as a
string of unsigned char. Format is as follows:
char[0 ]=len0_MSB -> len = len_MSB * 256 + len_LSB
char[1 ]=len0_LSB -> length of first write transaction
char[2 ]=data0 -> first byte to be sent
char[3 ]=data1
char[4 ]=data2
char[ ]=...
char[M ]=dataN -> last byte to be sent
char[M+1]=len1_MSB -> len = len_MSB * 256 + len_LSB
char[M+2]=len1_LSB -> length of second write transaction
char[M+3]=data0
char[M+4]=data1
...
etc.
The [len] value should be interpreted as follows:
len= len_MSB _ len_LSB
len=1111_1111_1111_1111 : End of I2C_SEQUENCE
len=0000_0000_0000_0000 : Reset command: Do hardware reset
len=0NNN_NNNN_NNNN_NNNN : Normal transaction: number of bytes = {1:32767)
len=1WWW_WWWW_WWWW_WWWW : Wait command: wait for {1:32767} ms
For the RESET and WAIT commands, the two following bytes will contain
immediately the length of the following transaction.
*/
typedef struct {
char *Name;
u16 AudioMode;
u16 VideoMode;
} XC_TV_STANDARD;
/* Tuner standards */
#define MN_NTSC_PAL_BTSC 0
#define MN_NTSC_PAL_A2 1
#define MN_NTSC_PAL_EIAJ 2
#define MN_NTSC_PAL_Mono 3
#define BG_PAL_A2 4
#define BG_PAL_NICAM 5
#define BG_PAL_MONO 6
#define I_PAL_NICAM 7
#define I_PAL_NICAM_MONO 8
#define DK_PAL_A2 9
#define DK_PAL_NICAM 10
#define DK_PAL_MONO 11
#define DK_SECAM_A2DK1 12
#define DK_SECAM_A2LDK3 13
#define DK_SECAM_A2MONO 14
#define L_SECAM_NICAM 15
#define LC_SECAM_NICAM 16
#define DTV6 17
#define DTV8 18
#define DTV7_8 19
#define DTV7 20
#define FM_Radio_INPUT2 21
#define FM_Radio_INPUT1 22
static XC_TV_STANDARD XC5000_Standard[MAX_TV_STANDARD] = {
{"M/N-NTSC/PAL-BTSC", 0x0400, 0x8020},
{"M/N-NTSC/PAL-A2", 0x0600, 0x8020},
{"M/N-NTSC/PAL-EIAJ", 0x0440, 0x8020},
{"M/N-NTSC/PAL-Mono", 0x0478, 0x8020},
{"B/G-PAL-A2", 0x0A00, 0x8049},
{"B/G-PAL-NICAM", 0x0C04, 0x8049},
{"B/G-PAL-MONO", 0x0878, 0x8059},
{"I-PAL-NICAM", 0x1080, 0x8009},
{"I-PAL-NICAM-MONO", 0x0E78, 0x8009},
{"D/K-PAL-A2", 0x1600, 0x8009},
{"D/K-PAL-NICAM", 0x0E80, 0x8009},
{"D/K-PAL-MONO", 0x1478, 0x8009},
{"D/K-SECAM-A2 DK1", 0x1200, 0x8009},
{"D/K-SECAM-A2 L/DK3",0x0E00, 0x8009},
{"D/K-SECAM-A2 MONO", 0x1478, 0x8009},
{"L-SECAM-NICAM", 0x8E82, 0x0009},
{"L'-SECAM-NICAM", 0x8E82, 0x4009},
{"DTV6", 0x00C0, 0x8002},
{"DTV8", 0x00C0, 0x800B},
{"DTV7/8", 0x00C0, 0x801B},
{"DTV7", 0x00C0, 0x8007},
{"FM Radio-INPUT2", 0x9802, 0x9002},
{"FM Radio-INPUT1", 0x0208, 0x9002}
};
static int xc5000_is_firmware_loaded(struct dvb_frontend *fe);
static int xc5000_writeregs(struct xc5000_priv *priv, u8 *buf, u8 len);
static int xc5000_readregs(struct xc5000_priv *priv, u8 *buf, u8 len);
static void xc5000_TunerReset(struct dvb_frontend *fe);
static int xc_send_i2c_data(struct xc5000_priv *priv, u8 *buf, int len)
{
return xc5000_writeregs(priv, buf, len)
? XC_RESULT_I2C_WRITE_FAILURE : XC_RESULT_SUCCESS;
}
static int xc_read_i2c_data(struct xc5000_priv *priv, u8 *buf, int len)
{
return xc5000_readregs(priv, buf, len)
? XC_RESULT_I2C_READ_FAILURE : XC_RESULT_SUCCESS;
}
static int xc_reset(struct dvb_frontend *fe)
{
xc5000_TunerReset(fe);
return XC_RESULT_SUCCESS;
}
static void xc_wait(int wait_ms)
{
msleep(wait_ms);
}
static void xc5000_TunerReset(struct dvb_frontend *fe)
{
struct xc5000_priv *priv = fe->tuner_priv;
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