8e4c67972e
Bring back the code that puts the xc5000 to sleep. For the Pinnacle 801e this results in power consumption at idle dropping from 325ma to 124ma. If there are *actually* any devices that don't work in this configuration, they should set dvb_frontend.ops.tuner_ops.sleep to NULL (per mkrufky's suggestion) Also, had to make sure we were making sure the firmware was loaded in the digital version of set_params, or else we end up get i2c errors if the device is asleep Signed-off-by: Devin Heitmueller <devin.heitmueller@gmail.com> Signed-off-by: Michael Krufky <mkrufky@linuxtv.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
992 lines
25 KiB
C
992 lines
25 KiB
C
/*
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* Driver for Xceive XC5000 "QAM/8VSB single chip tuner"
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*
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* Copyright (c) 2007 Xceive Corporation
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* Copyright (c) 2007 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
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (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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*
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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., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#include <linux/module.h>
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#include <linux/moduleparam.h>
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#include <linux/videodev2.h>
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#include <linux/delay.h>
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#include <linux/dvb/frontend.h>
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#include <linux/i2c.h>
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#include "dvb_frontend.h"
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#include "xc5000.h"
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#include "tuner-i2c.h"
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static int debug;
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module_param(debug, int, 0644);
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MODULE_PARM_DESC(debug, "Turn on/off debugging (default:off).");
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static DEFINE_MUTEX(xc5000_list_mutex);
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static LIST_HEAD(hybrid_tuner_instance_list);
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#define dprintk(level, fmt, arg...) if (debug >= level) \
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printk(KERN_INFO "%s: " fmt, "xc5000", ## arg)
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#define XC5000_DEFAULT_FIRMWARE "dvb-fe-xc5000-1.1.fw"
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#define XC5000_DEFAULT_FIRMWARE_SIZE 12332
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struct xc5000_priv {
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struct tuner_i2c_props i2c_props;
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struct list_head hybrid_tuner_instance_list;
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u32 if_khz;
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u32 freq_hz;
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u32 bandwidth;
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u8 video_standard;
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u8 rf_mode;
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};
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/* Misc Defines */
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#define MAX_TV_STANDARD 23
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#define XC_MAX_I2C_WRITE_LENGTH 64
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/* Signal Types */
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#define XC_RF_MODE_AIR 0
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#define XC_RF_MODE_CABLE 1
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/* Result codes */
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#define XC_RESULT_SUCCESS 0
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#define XC_RESULT_RESET_FAILURE 1
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#define XC_RESULT_I2C_WRITE_FAILURE 2
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#define XC_RESULT_I2C_READ_FAILURE 3
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#define XC_RESULT_OUT_OF_RANGE 5
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/* Product id */
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#define XC_PRODUCT_ID_FW_NOT_LOADED 0x2000
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#define XC_PRODUCT_ID_FW_LOADED 0x1388
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/* Registers */
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#define XREG_INIT 0x00
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#define XREG_VIDEO_MODE 0x01
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#define XREG_AUDIO_MODE 0x02
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#define XREG_RF_FREQ 0x03
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#define XREG_D_CODE 0x04
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#define XREG_IF_OUT 0x05
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#define XREG_SEEK_MODE 0x07
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#define XREG_POWER_DOWN 0x0A
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#define XREG_SIGNALSOURCE 0x0D /* 0=Air, 1=Cable */
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#define XREG_SMOOTHEDCVBS 0x0E
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#define XREG_XTALFREQ 0x0F
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#define XREG_FINERFFREQ 0x10
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#define XREG_DDIMODE 0x11
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#define XREG_ADC_ENV 0x00
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#define XREG_QUALITY 0x01
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#define XREG_FRAME_LINES 0x02
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#define XREG_HSYNC_FREQ 0x03
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#define XREG_LOCK 0x04
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#define XREG_FREQ_ERROR 0x05
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#define XREG_SNR 0x06
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#define XREG_VERSION 0x07
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#define XREG_PRODUCT_ID 0x08
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#define XREG_BUSY 0x09
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/*
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Basic firmware description. This will remain with
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the driver for documentation purposes.
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This represents an I2C firmware file encoded as a
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string of unsigned char. Format is as follows:
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char[0 ]=len0_MSB -> len = len_MSB * 256 + len_LSB
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char[1 ]=len0_LSB -> length of first write transaction
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char[2 ]=data0 -> first byte to be sent
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char[3 ]=data1
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char[4 ]=data2
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char[ ]=...
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char[M ]=dataN -> last byte to be sent
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char[M+1]=len1_MSB -> len = len_MSB * 256 + len_LSB
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char[M+2]=len1_LSB -> length of second write transaction
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char[M+3]=data0
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char[M+4]=data1
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...
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etc.
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The [len] value should be interpreted as follows:
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len= len_MSB _ len_LSB
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len=1111_1111_1111_1111 : End of I2C_SEQUENCE
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len=0000_0000_0000_0000 : Reset command: Do hardware reset
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len=0NNN_NNNN_NNNN_NNNN : Normal transaction: number of bytes = {1:32767)
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len=1WWW_WWWW_WWWW_WWWW : Wait command: wait for {1:32767} ms
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For the RESET and WAIT commands, the two following bytes will contain
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immediately the length of the following transaction.
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*/
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struct XC_TV_STANDARD {
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char *Name;
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u16 AudioMode;
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u16 VideoMode;
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};
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/* Tuner standards */
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#define MN_NTSC_PAL_BTSC 0
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#define MN_NTSC_PAL_A2 1
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#define MN_NTSC_PAL_EIAJ 2
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#define MN_NTSC_PAL_Mono 3
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#define BG_PAL_A2 4
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#define BG_PAL_NICAM 5
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#define BG_PAL_MONO 6
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#define I_PAL_NICAM 7
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#define I_PAL_NICAM_MONO 8
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#define DK_PAL_A2 9
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#define DK_PAL_NICAM 10
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#define DK_PAL_MONO 11
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#define DK_SECAM_A2DK1 12
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#define DK_SECAM_A2LDK3 13
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#define DK_SECAM_A2MONO 14
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#define L_SECAM_NICAM 15
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#define LC_SECAM_NICAM 16
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#define DTV6 17
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#define DTV8 18
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#define DTV7_8 19
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#define DTV7 20
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#define FM_Radio_INPUT2 21
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#define FM_Radio_INPUT1 22
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static struct XC_TV_STANDARD XC5000_Standard[MAX_TV_STANDARD] = {
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{"M/N-NTSC/PAL-BTSC", 0x0400, 0x8020},
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{"M/N-NTSC/PAL-A2", 0x0600, 0x8020},
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{"M/N-NTSC/PAL-EIAJ", 0x0440, 0x8020},
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{"M/N-NTSC/PAL-Mono", 0x0478, 0x8020},
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{"B/G-PAL-A2", 0x0A00, 0x8049},
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{"B/G-PAL-NICAM", 0x0C04, 0x8049},
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{"B/G-PAL-MONO", 0x0878, 0x8059},
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{"I-PAL-NICAM", 0x1080, 0x8009},
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{"I-PAL-NICAM-MONO", 0x0E78, 0x8009},
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{"D/K-PAL-A2", 0x1600, 0x8009},
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{"D/K-PAL-NICAM", 0x0E80, 0x8009},
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{"D/K-PAL-MONO", 0x1478, 0x8009},
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{"D/K-SECAM-A2 DK1", 0x1200, 0x8009},
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{"D/K-SECAM-A2 L/DK3", 0x0E00, 0x8009},
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{"D/K-SECAM-A2 MONO", 0x1478, 0x8009},
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{"L-SECAM-NICAM", 0x8E82, 0x0009},
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{"L'-SECAM-NICAM", 0x8E82, 0x4009},
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{"DTV6", 0x00C0, 0x8002},
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{"DTV8", 0x00C0, 0x800B},
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{"DTV7/8", 0x00C0, 0x801B},
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{"DTV7", 0x00C0, 0x8007},
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{"FM Radio-INPUT2", 0x9802, 0x9002},
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{"FM Radio-INPUT1", 0x0208, 0x9002}
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};
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static int xc_load_fw_and_init_tuner(struct dvb_frontend *fe);
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static int xc5000_is_firmware_loaded(struct dvb_frontend *fe);
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static int xc5000_readreg(struct xc5000_priv *priv, u16 reg, u16 *val);
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static int xc5000_TunerReset(struct dvb_frontend *fe);
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static int xc_send_i2c_data(struct xc5000_priv *priv, u8 *buf, int len)
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{
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struct i2c_msg msg = { .addr = priv->i2c_props.addr,
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.flags = 0, .buf = buf, .len = len };
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if (i2c_transfer(priv->i2c_props.adap, &msg, 1) != 1) {
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printk(KERN_ERR "xc5000: I2C write failed (len=%i)\n", len);
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return XC_RESULT_I2C_WRITE_FAILURE;
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}
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return XC_RESULT_SUCCESS;
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}
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/* This routine is never used because the only time we read data from the
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i2c bus is when we read registers, and we want that to be an atomic i2c
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transaction in case we are on a multi-master bus */
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static int xc_read_i2c_data(struct xc5000_priv *priv, u8 *buf, int len)
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{
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struct i2c_msg msg = { .addr = priv->i2c_props.addr,
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.flags = I2C_M_RD, .buf = buf, .len = len };
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if (i2c_transfer(priv->i2c_props.adap, &msg, 1) != 1) {
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printk(KERN_ERR "xc5000 I2C read failed (len=%i)\n", len);
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return -EREMOTEIO;
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}
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return 0;
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}
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static void xc_wait(int wait_ms)
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{
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msleep(wait_ms);
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}
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static int xc5000_TunerReset(struct dvb_frontend *fe)
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{
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struct xc5000_priv *priv = fe->tuner_priv;
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int ret;
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dprintk(1, "%s()\n", __func__);
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if (fe->callback) {
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ret = fe->callback(((fe->dvb) && (fe->dvb->priv)) ?
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fe->dvb->priv :
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priv->i2c_props.adap->algo_data,
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DVB_FRONTEND_COMPONENT_TUNER,
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XC5000_TUNER_RESET, 0);
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if (ret) {
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printk(KERN_ERR "xc5000: reset failed\n");
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return XC_RESULT_RESET_FAILURE;
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}
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} else {
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printk(KERN_ERR "xc5000: no tuner reset callback function, fatal\n");
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return XC_RESULT_RESET_FAILURE;
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}
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return XC_RESULT_SUCCESS;
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}
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static int xc_write_reg(struct xc5000_priv *priv, u16 regAddr, u16 i2cData)
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{
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u8 buf[4];
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int WatchDogTimer = 5;
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int result;
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buf[0] = (regAddr >> 8) & 0xFF;
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buf[1] = regAddr & 0xFF;
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buf[2] = (i2cData >> 8) & 0xFF;
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buf[3] = i2cData & 0xFF;
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result = xc_send_i2c_data(priv, buf, 4);
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if (result == XC_RESULT_SUCCESS) {
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/* wait for busy flag to clear */
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while ((WatchDogTimer > 0) && (result == XC_RESULT_SUCCESS)) {
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buf[0] = 0;
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buf[1] = XREG_BUSY;
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result = xc_send_i2c_data(priv, buf, 2);
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if (result == XC_RESULT_SUCCESS) {
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result = xc_read_i2c_data(priv, buf, 2);
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if (result == XC_RESULT_SUCCESS) {
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if ((buf[0] == 0) && (buf[1] == 0)) {
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/* busy flag cleared */
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break;
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} else {
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xc_wait(100); /* wait 5 ms */
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WatchDogTimer--;
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}
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}
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}
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}
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}
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if (WatchDogTimer < 0)
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result = XC_RESULT_I2C_WRITE_FAILURE;
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return result;
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}
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static int xc_load_i2c_sequence(struct dvb_frontend *fe, const u8 *i2c_sequence)
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{
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struct xc5000_priv *priv = fe->tuner_priv;
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int i, nbytes_to_send, result;
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unsigned int len, pos, index;
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u8 buf[XC_MAX_I2C_WRITE_LENGTH];
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index = 0;
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while ((i2c_sequence[index] != 0xFF) ||
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(i2c_sequence[index + 1] != 0xFF)) {
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len = i2c_sequence[index] * 256 + i2c_sequence[index+1];
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if (len == 0x0000) {
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/* RESET command */
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result = xc5000_TunerReset(fe);
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index += 2;
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if (result != XC_RESULT_SUCCESS)
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return result;
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} else if (len & 0x8000) {
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/* WAIT command */
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xc_wait(len & 0x7FFF);
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index += 2;
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} else {
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/* Send i2c data whilst ensuring individual transactions
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* do not exceed XC_MAX_I2C_WRITE_LENGTH bytes.
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*/
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index += 2;
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buf[0] = i2c_sequence[index];
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buf[1] = i2c_sequence[index + 1];
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pos = 2;
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while (pos < len) {
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if ((len - pos) > XC_MAX_I2C_WRITE_LENGTH - 2)
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nbytes_to_send =
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XC_MAX_I2C_WRITE_LENGTH;
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else
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nbytes_to_send = (len - pos + 2);
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for (i = 2; i < nbytes_to_send; i++) {
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buf[i] = i2c_sequence[index + pos +
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i - 2];
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}
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result = xc_send_i2c_data(priv, buf,
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nbytes_to_send);
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if (result != XC_RESULT_SUCCESS)
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return result;
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pos += nbytes_to_send - 2;
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}
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index += len;
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}
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}
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return XC_RESULT_SUCCESS;
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}
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static int xc_initialize(struct xc5000_priv *priv)
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{
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dprintk(1, "%s()\n", __func__);
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return xc_write_reg(priv, XREG_INIT, 0);
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}
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static int xc_SetTVStandard(struct xc5000_priv *priv,
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u16 VideoMode, u16 AudioMode)
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{
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int ret;
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dprintk(1, "%s(0x%04x,0x%04x)\n", __func__, VideoMode, AudioMode);
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dprintk(1, "%s() Standard = %s\n",
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__func__,
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XC5000_Standard[priv->video_standard].Name);
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ret = xc_write_reg(priv, XREG_VIDEO_MODE, VideoMode);
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if (ret == XC_RESULT_SUCCESS)
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ret = xc_write_reg(priv, XREG_AUDIO_MODE, AudioMode);
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return ret;
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}
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static int xc_SetSignalSource(struct xc5000_priv *priv, u16 rf_mode)
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{
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dprintk(1, "%s(%d) Source = %s\n", __func__, rf_mode,
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rf_mode == XC_RF_MODE_AIR ? "ANTENNA" : "CABLE");
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if ((rf_mode != XC_RF_MODE_AIR) && (rf_mode != XC_RF_MODE_CABLE)) {
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rf_mode = XC_RF_MODE_CABLE;
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printk(KERN_ERR
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"%s(), Invalid mode, defaulting to CABLE",
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__func__);
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}
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return xc_write_reg(priv, XREG_SIGNALSOURCE, rf_mode);
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}
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static const struct dvb_tuner_ops xc5000_tuner_ops;
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static int xc_set_RF_frequency(struct xc5000_priv *priv, u32 freq_hz)
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{
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u16 freq_code;
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dprintk(1, "%s(%u)\n", __func__, freq_hz);
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if ((freq_hz > xc5000_tuner_ops.info.frequency_max) ||
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(freq_hz < xc5000_tuner_ops.info.frequency_min))
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return XC_RESULT_OUT_OF_RANGE;
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freq_code = (u16)(freq_hz / 15625);
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return xc_write_reg(priv, XREG_RF_FREQ, freq_code);
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}
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static int xc_set_IF_frequency(struct xc5000_priv *priv, u32 freq_khz)
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{
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u32 freq_code = (freq_khz * 1024)/1000;
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dprintk(1, "%s(freq_khz = %d) freq_code = 0x%x\n",
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__func__, freq_khz, freq_code);
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return xc_write_reg(priv, XREG_IF_OUT, freq_code);
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}
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static int xc_get_ADC_Envelope(struct xc5000_priv *priv, u16 *adc_envelope)
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{
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return xc5000_readreg(priv, XREG_ADC_ENV, adc_envelope);
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}
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static int xc_get_frequency_error(struct xc5000_priv *priv, u32 *freq_error_hz)
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{
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int result;
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u16 regData;
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u32 tmp;
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result = xc5000_readreg(priv, XREG_FREQ_ERROR, ®Data);
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if (result != XC_RESULT_SUCCESS)
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return result;
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tmp = (u32)regData;
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(*freq_error_hz) = (tmp * 15625) / 1000;
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return result;
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}
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static int xc_get_lock_status(struct xc5000_priv *priv, u16 *lock_status)
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{
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return xc5000_readreg(priv, XREG_LOCK, lock_status);
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}
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static int xc_get_version(struct xc5000_priv *priv,
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u8 *hw_majorversion, u8 *hw_minorversion,
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u8 *fw_majorversion, u8 *fw_minorversion)
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{
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u16 data;
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int result;
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result = xc5000_readreg(priv, XREG_VERSION, &data);
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if (result != XC_RESULT_SUCCESS)
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return result;
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(*hw_majorversion) = (data >> 12) & 0x0F;
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(*hw_minorversion) = (data >> 8) & 0x0F;
|
|
(*fw_majorversion) = (data >> 4) & 0x0F;
|
|
(*fw_minorversion) = data & 0x0F;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int xc_get_hsync_freq(struct xc5000_priv *priv, u32 *hsync_freq_hz)
|
|
{
|
|
u16 regData;
|
|
int result;
|
|
|
|
result = xc5000_readreg(priv, XREG_HSYNC_FREQ, ®Data);
|
|
if (result != XC_RESULT_SUCCESS)
|
|
return result;
|
|
|
|
(*hsync_freq_hz) = ((regData & 0x0fff) * 763)/100;
|
|
return result;
|
|
}
|
|
|
|
static int xc_get_frame_lines(struct xc5000_priv *priv, u16 *frame_lines)
|
|
{
|
|
return xc5000_readreg(priv, XREG_FRAME_LINES, frame_lines);
|
|
}
|
|
|
|
static int xc_get_quality(struct xc5000_priv *priv, u16 *quality)
|
|
{
|
|
return xc5000_readreg(priv, XREG_QUALITY, quality);
|
|
}
|
|
|
|
static u16 WaitForLock(struct xc5000_priv *priv)
|
|
{
|
|
u16 lockState = 0;
|
|
int watchDogCount = 40;
|
|
|
|
while ((lockState == 0) && (watchDogCount > 0)) {
|
|
xc_get_lock_status(priv, &lockState);
|
|
if (lockState != 1) {
|
|
xc_wait(5);
|
|
watchDogCount--;
|
|
}
|
|
}
|
|
return lockState;
|
|
}
|
|
|
|
static int xc_tune_channel(struct xc5000_priv *priv, u32 freq_hz)
|
|
{
|
|
int found = 0;
|
|
|
|
dprintk(1, "%s(%u)\n", __func__, freq_hz);
|
|
|
|
if (xc_set_RF_frequency(priv, freq_hz) != XC_RESULT_SUCCESS)
|
|
return 0;
|
|
|
|
if (WaitForLock(priv) == 1)
|
|
found = 1;
|
|
|
|
return found;
|
|
}
|
|
|
|
static int xc5000_readreg(struct xc5000_priv *priv, u16 reg, u16 *val)
|
|
{
|
|
u8 buf[2] = { reg >> 8, reg & 0xff };
|
|
u8 bval[2] = { 0, 0 };
|
|
struct i2c_msg msg[2] = {
|
|
{ .addr = priv->i2c_props.addr,
|
|
.flags = 0, .buf = &buf[0], .len = 2 },
|
|
{ .addr = priv->i2c_props.addr,
|
|
.flags = I2C_M_RD, .buf = &bval[0], .len = 2 },
|
|
};
|
|
|
|
if (i2c_transfer(priv->i2c_props.adap, msg, 2) != 2) {
|
|
printk(KERN_WARNING "xc5000: I2C read failed\n");
|
|
return -EREMOTEIO;
|
|
}
|
|
|
|
*val = (bval[0] << 8) | bval[1];
|
|
return XC_RESULT_SUCCESS;
|
|
}
|
|
|
|
static int xc5000_fwupload(struct dvb_frontend *fe)
|
|
{
|
|
struct xc5000_priv *priv = fe->tuner_priv;
|
|
const struct firmware *fw;
|
|
int ret;
|
|
|
|
/* request the firmware, this will block and timeout */
|
|
printk(KERN_INFO "xc5000: waiting for firmware upload (%s)...\n",
|
|
XC5000_DEFAULT_FIRMWARE);
|
|
|
|
ret = request_firmware(&fw, XC5000_DEFAULT_FIRMWARE,
|
|
priv->i2c_props.adap->dev.parent);
|
|
if (ret) {
|
|
printk(KERN_ERR "xc5000: Upload failed. (file not found?)\n");
|
|
ret = XC_RESULT_RESET_FAILURE;
|
|
goto out;
|
|
} else {
|
|
printk(KERN_INFO "xc5000: firmware read %Zu bytes.\n",
|
|
fw->size);
|
|
ret = XC_RESULT_SUCCESS;
|
|
}
|
|
|
|
if (fw->size != XC5000_DEFAULT_FIRMWARE_SIZE) {
|
|
printk(KERN_ERR "xc5000: firmware incorrect size\n");
|
|
ret = XC_RESULT_RESET_FAILURE;
|
|
} else {
|
|
printk(KERN_INFO "xc5000: firmware upload\n");
|
|
ret = xc_load_i2c_sequence(fe, fw->data);
|
|
}
|
|
|
|
out:
|
|
release_firmware(fw);
|
|
return ret;
|
|
}
|
|
|
|
static void xc_debug_dump(struct xc5000_priv *priv)
|
|
{
|
|
u16 adc_envelope;
|
|
u32 freq_error_hz = 0;
|
|
u16 lock_status;
|
|
u32 hsync_freq_hz = 0;
|
|
u16 frame_lines;
|
|
u16 quality;
|
|
u8 hw_majorversion = 0, hw_minorversion = 0;
|
|
u8 fw_majorversion = 0, fw_minorversion = 0;
|
|
|
|
/* Wait for stats to stabilize.
|
|
* Frame Lines needs two frame times after initial lock
|
|
* before it is valid.
|
|
*/
|
|
xc_wait(100);
|
|
|
|
xc_get_ADC_Envelope(priv, &adc_envelope);
|
|
dprintk(1, "*** ADC envelope (0-1023) = %d\n", adc_envelope);
|
|
|
|
xc_get_frequency_error(priv, &freq_error_hz);
|
|
dprintk(1, "*** Frequency error = %d Hz\n", freq_error_hz);
|
|
|
|
xc_get_lock_status(priv, &lock_status);
|
|
dprintk(1, "*** Lock status (0-Wait, 1-Locked, 2-No-signal) = %d\n",
|
|
lock_status);
|
|
|
|
xc_get_version(priv, &hw_majorversion, &hw_minorversion,
|
|
&fw_majorversion, &fw_minorversion);
|
|
dprintk(1, "*** HW: V%02x.%02x, FW: V%02x.%02x\n",
|
|
hw_majorversion, hw_minorversion,
|
|
fw_majorversion, fw_minorversion);
|
|
|
|
xc_get_hsync_freq(priv, &hsync_freq_hz);
|
|
dprintk(1, "*** Horizontal sync frequency = %d Hz\n", hsync_freq_hz);
|
|
|
|
xc_get_frame_lines(priv, &frame_lines);
|
|
dprintk(1, "*** Frame lines = %d\n", frame_lines);
|
|
|
|
xc_get_quality(priv, &quality);
|
|
dprintk(1, "*** Quality (0:<8dB, 7:>56dB) = %d\n", quality);
|
|
}
|
|
|
|
static int xc5000_set_params(struct dvb_frontend *fe,
|
|
struct dvb_frontend_parameters *params)
|
|
{
|
|
struct xc5000_priv *priv = fe->tuner_priv;
|
|
int ret;
|
|
|
|
if (xc5000_is_firmware_loaded(fe) != XC_RESULT_SUCCESS)
|
|
xc_load_fw_and_init_tuner(fe);
|
|
|
|
dprintk(1, "%s() frequency=%d (Hz)\n", __func__, params->frequency);
|
|
|
|
switch (params->u.vsb.modulation) {
|
|
case VSB_8:
|
|
case VSB_16:
|
|
dprintk(1, "%s() VSB modulation\n", __func__);
|
|
priv->rf_mode = XC_RF_MODE_AIR;
|
|
priv->freq_hz = params->frequency - 1750000;
|
|
priv->bandwidth = BANDWIDTH_6_MHZ;
|
|
priv->video_standard = DTV6;
|
|
break;
|
|
case QAM_64:
|
|
case QAM_256:
|
|
case QAM_AUTO:
|
|
dprintk(1, "%s() QAM modulation\n", __func__);
|
|
priv->rf_mode = XC_RF_MODE_CABLE;
|
|
priv->freq_hz = params->frequency - 1750000;
|
|
priv->bandwidth = BANDWIDTH_6_MHZ;
|
|
priv->video_standard = DTV6;
|
|
break;
|
|
default:
|
|
return -EINVAL;
|
|
}
|
|
|
|
dprintk(1, "%s() frequency=%d (compensated)\n",
|
|
__func__, priv->freq_hz);
|
|
|
|
ret = xc_SetSignalSource(priv, priv->rf_mode);
|
|
if (ret != XC_RESULT_SUCCESS) {
|
|
printk(KERN_ERR
|
|
"xc5000: xc_SetSignalSource(%d) failed\n",
|
|
priv->rf_mode);
|
|
return -EREMOTEIO;
|
|
}
|
|
|
|
ret = xc_SetTVStandard(priv,
|
|
XC5000_Standard[priv->video_standard].VideoMode,
|
|
XC5000_Standard[priv->video_standard].AudioMode);
|
|
if (ret != XC_RESULT_SUCCESS) {
|
|
printk(KERN_ERR "xc5000: xc_SetTVStandard failed\n");
|
|
return -EREMOTEIO;
|
|
}
|
|
|
|
ret = xc_set_IF_frequency(priv, priv->if_khz);
|
|
if (ret != XC_RESULT_SUCCESS) {
|
|
printk(KERN_ERR "xc5000: xc_Set_IF_frequency(%d) failed\n",
|
|
priv->if_khz);
|
|
return -EIO;
|
|
}
|
|
|
|
xc_tune_channel(priv, priv->freq_hz);
|
|
|
|
if (debug)
|
|
xc_debug_dump(priv);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int xc5000_is_firmware_loaded(struct dvb_frontend *fe)
|
|
{
|
|
struct xc5000_priv *priv = fe->tuner_priv;
|
|
int ret;
|
|
u16 id;
|
|
|
|
ret = xc5000_readreg(priv, XREG_PRODUCT_ID, &id);
|
|
if (ret == XC_RESULT_SUCCESS) {
|
|
if (id == XC_PRODUCT_ID_FW_NOT_LOADED)
|
|
ret = XC_RESULT_RESET_FAILURE;
|
|
else
|
|
ret = XC_RESULT_SUCCESS;
|
|
}
|
|
|
|
dprintk(1, "%s() returns %s id = 0x%x\n", __func__,
|
|
ret == XC_RESULT_SUCCESS ? "True" : "False", id);
|
|
return ret;
|
|
}
|
|
|
|
static int xc5000_set_analog_params(struct dvb_frontend *fe,
|
|
struct analog_parameters *params)
|
|
{
|
|
struct xc5000_priv *priv = fe->tuner_priv;
|
|
int ret;
|
|
|
|
if (xc5000_is_firmware_loaded(fe) != XC_RESULT_SUCCESS)
|
|
xc_load_fw_and_init_tuner(fe);
|
|
|
|
dprintk(1, "%s() frequency=%d (in units of 62.5khz)\n",
|
|
__func__, params->frequency);
|
|
|
|
/* Fix me: it could be air. */
|
|
priv->rf_mode = params->mode;
|
|
if (params->mode > XC_RF_MODE_CABLE)
|
|
priv->rf_mode = XC_RF_MODE_CABLE;
|
|
|
|
/* params->frequency is in units of 62.5khz */
|
|
priv->freq_hz = params->frequency * 62500;
|
|
|
|
/* FIX ME: Some video standards may have several possible audio
|
|
standards. We simply default to one of them here.
|
|
*/
|
|
if (params->std & V4L2_STD_MN) {
|
|
/* default to BTSC audio standard */
|
|
priv->video_standard = MN_NTSC_PAL_BTSC;
|
|
goto tune_channel;
|
|
}
|
|
|
|
if (params->std & V4L2_STD_PAL_BG) {
|
|
/* default to NICAM audio standard */
|
|
priv->video_standard = BG_PAL_NICAM;
|
|
goto tune_channel;
|
|
}
|
|
|
|
if (params->std & V4L2_STD_PAL_I) {
|
|
/* default to NICAM audio standard */
|
|
priv->video_standard = I_PAL_NICAM;
|
|
goto tune_channel;
|
|
}
|
|
|
|
if (params->std & V4L2_STD_PAL_DK) {
|
|
/* default to NICAM audio standard */
|
|
priv->video_standard = DK_PAL_NICAM;
|
|
goto tune_channel;
|
|
}
|
|
|
|
if (params->std & V4L2_STD_SECAM_DK) {
|
|
/* default to A2 DK1 audio standard */
|
|
priv->video_standard = DK_SECAM_A2DK1;
|
|
goto tune_channel;
|
|
}
|
|
|
|
if (params->std & V4L2_STD_SECAM_L) {
|
|
priv->video_standard = L_SECAM_NICAM;
|
|
goto tune_channel;
|
|
}
|
|
|
|
if (params->std & V4L2_STD_SECAM_LC) {
|
|
priv->video_standard = LC_SECAM_NICAM;
|
|
goto tune_channel;
|
|
}
|
|
|
|
tune_channel:
|
|
ret = xc_SetSignalSource(priv, priv->rf_mode);
|
|
if (ret != XC_RESULT_SUCCESS) {
|
|
printk(KERN_ERR
|
|
"xc5000: xc_SetSignalSource(%d) failed\n",
|
|
priv->rf_mode);
|
|
return -EREMOTEIO;
|
|
}
|
|
|
|
ret = xc_SetTVStandard(priv,
|
|
XC5000_Standard[priv->video_standard].VideoMode,
|
|
XC5000_Standard[priv->video_standard].AudioMode);
|
|
if (ret != XC_RESULT_SUCCESS) {
|
|
printk(KERN_ERR "xc5000: xc_SetTVStandard failed\n");
|
|
return -EREMOTEIO;
|
|
}
|
|
|
|
xc_tune_channel(priv, priv->freq_hz);
|
|
|
|
if (debug)
|
|
xc_debug_dump(priv);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int xc5000_get_frequency(struct dvb_frontend *fe, u32 *freq)
|
|
{
|
|
struct xc5000_priv *priv = fe->tuner_priv;
|
|
dprintk(1, "%s()\n", __func__);
|
|
*freq = priv->freq_hz;
|
|
return 0;
|
|
}
|
|
|
|
static int xc5000_get_bandwidth(struct dvb_frontend *fe, u32 *bw)
|
|
{
|
|
struct xc5000_priv *priv = fe->tuner_priv;
|
|
dprintk(1, "%s()\n", __func__);
|
|
|
|
*bw = priv->bandwidth;
|
|
return 0;
|
|
}
|
|
|
|
static int xc5000_get_status(struct dvb_frontend *fe, u32 *status)
|
|
{
|
|
struct xc5000_priv *priv = fe->tuner_priv;
|
|
u16 lock_status = 0;
|
|
|
|
xc_get_lock_status(priv, &lock_status);
|
|
|
|
dprintk(1, "%s() lock_status = 0x%08x\n", __func__, lock_status);
|
|
|
|
*status = lock_status;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int xc_load_fw_and_init_tuner(struct dvb_frontend *fe)
|
|
{
|
|
struct xc5000_priv *priv = fe->tuner_priv;
|
|
int ret = 0;
|
|
|
|
if (xc5000_is_firmware_loaded(fe) != XC_RESULT_SUCCESS) {
|
|
ret = xc5000_fwupload(fe);
|
|
if (ret != XC_RESULT_SUCCESS)
|
|
return ret;
|
|
}
|
|
|
|
/* Start the tuner self-calibration process */
|
|
ret |= xc_initialize(priv);
|
|
|
|
/* Wait for calibration to complete.
|
|
* We could continue but XC5000 will clock stretch subsequent
|
|
* I2C transactions until calibration is complete. This way we
|
|
* don't have to rely on clock stretching working.
|
|
*/
|
|
xc_wait(100);
|
|
|
|
/* Default to "CABLE" mode */
|
|
ret |= xc_write_reg(priv, XREG_SIGNALSOURCE, XC_RF_MODE_CABLE);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int xc5000_sleep(struct dvb_frontend *fe)
|
|
{
|
|
struct xc5000_priv *priv = fe->tuner_priv;
|
|
int ret;
|
|
|
|
dprintk(1, "%s()\n", __func__);
|
|
|
|
ret = xc_write_reg(priv, XREG_POWER_DOWN, 0);
|
|
if (ret != XC_RESULT_SUCCESS) {
|
|
printk(KERN_ERR
|
|
"xc5000: %s() unable to shutdown tuner\n",
|
|
__func__);
|
|
return -EREMOTEIO;
|
|
} else
|
|
return XC_RESULT_SUCCESS;
|
|
}
|
|
|
|
static int xc5000_init(struct dvb_frontend *fe)
|
|
{
|
|
struct xc5000_priv *priv = fe->tuner_priv;
|
|
dprintk(1, "%s()\n", __func__);
|
|
|
|
if (xc_load_fw_and_init_tuner(fe) != XC_RESULT_SUCCESS) {
|
|
printk(KERN_ERR "xc5000: Unable to initialise tuner\n");
|
|
return -EREMOTEIO;
|
|
}
|
|
|
|
if (debug)
|
|
xc_debug_dump(priv);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int xc5000_release(struct dvb_frontend *fe)
|
|
{
|
|
struct xc5000_priv *priv = fe->tuner_priv;
|
|
|
|
dprintk(1, "%s()\n", __func__);
|
|
|
|
mutex_lock(&xc5000_list_mutex);
|
|
|
|
if (priv)
|
|
hybrid_tuner_release_state(priv);
|
|
|
|
mutex_unlock(&xc5000_list_mutex);
|
|
|
|
fe->tuner_priv = NULL;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static const struct dvb_tuner_ops xc5000_tuner_ops = {
|
|
.info = {
|
|
.name = "Xceive XC5000",
|
|
.frequency_min = 1000000,
|
|
.frequency_max = 1023000000,
|
|
.frequency_step = 50000,
|
|
},
|
|
|
|
.release = xc5000_release,
|
|
.init = xc5000_init,
|
|
.sleep = xc5000_sleep,
|
|
|
|
.set_params = xc5000_set_params,
|
|
.set_analog_params = xc5000_set_analog_params,
|
|
.get_frequency = xc5000_get_frequency,
|
|
.get_bandwidth = xc5000_get_bandwidth,
|
|
.get_status = xc5000_get_status
|
|
};
|
|
|
|
struct dvb_frontend *xc5000_attach(struct dvb_frontend *fe,
|
|
struct i2c_adapter *i2c,
|
|
struct xc5000_config *cfg)
|
|
{
|
|
struct xc5000_priv *priv = NULL;
|
|
int instance;
|
|
u16 id = 0;
|
|
|
|
dprintk(1, "%s(%d-%04x)\n", __func__,
|
|
i2c ? i2c_adapter_id(i2c) : -1,
|
|
cfg ? cfg->i2c_address : -1);
|
|
|
|
mutex_lock(&xc5000_list_mutex);
|
|
|
|
instance = hybrid_tuner_request_state(struct xc5000_priv, priv,
|
|
hybrid_tuner_instance_list,
|
|
i2c, cfg->i2c_address, "xc5000");
|
|
switch (instance) {
|
|
case 0:
|
|
goto fail;
|
|
break;
|
|
case 1:
|
|
/* new tuner instance */
|
|
priv->bandwidth = BANDWIDTH_6_MHZ;
|
|
fe->tuner_priv = priv;
|
|
break;
|
|
default:
|
|
/* existing tuner instance */
|
|
fe->tuner_priv = priv;
|
|
break;
|
|
}
|
|
|
|
if (priv->if_khz == 0) {
|
|
/* If the IF hasn't been set yet, use the value provided by
|
|
the caller (occurs in hybrid devices where the analog
|
|
call to xc5000_attach occurs before the digital side) */
|
|
priv->if_khz = cfg->if_khz;
|
|
}
|
|
|
|
/* Check if firmware has been loaded. It is possible that another
|
|
instance of the driver has loaded the firmware.
|
|
*/
|
|
if (xc5000_readreg(priv, XREG_PRODUCT_ID, &id) != XC_RESULT_SUCCESS)
|
|
goto fail;
|
|
|
|
switch (id) {
|
|
case XC_PRODUCT_ID_FW_LOADED:
|
|
printk(KERN_INFO
|
|
"xc5000: Successfully identified at address 0x%02x\n",
|
|
cfg->i2c_address);
|
|
printk(KERN_INFO
|
|
"xc5000: Firmware has been loaded previously\n");
|
|
break;
|
|
case XC_PRODUCT_ID_FW_NOT_LOADED:
|
|
printk(KERN_INFO
|
|
"xc5000: Successfully identified at address 0x%02x\n",
|
|
cfg->i2c_address);
|
|
printk(KERN_INFO
|
|
"xc5000: Firmware has not been loaded previously\n");
|
|
break;
|
|
default:
|
|
printk(KERN_ERR
|
|
"xc5000: Device not found at addr 0x%02x (0x%x)\n",
|
|
cfg->i2c_address, id);
|
|
goto fail;
|
|
}
|
|
|
|
mutex_unlock(&xc5000_list_mutex);
|
|
|
|
memcpy(&fe->ops.tuner_ops, &xc5000_tuner_ops,
|
|
sizeof(struct dvb_tuner_ops));
|
|
|
|
return fe;
|
|
fail:
|
|
mutex_unlock(&xc5000_list_mutex);
|
|
|
|
xc5000_release(fe);
|
|
return NULL;
|
|
}
|
|
EXPORT_SYMBOL(xc5000_attach);
|
|
|
|
MODULE_AUTHOR("Steven Toth");
|
|
MODULE_DESCRIPTION("Xceive xc5000 silicon tuner driver");
|
|
MODULE_LICENSE("GPL");
|