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linux/drivers/media/video/cx231xx/cx231xx-avcore.c
Trent Piepho 1ca27379f3 V4L/DVB (11913): cx231xx: TRY_FMT should not actually set anything 
In the TRY_FMT handler the function get_scale() is called to find what the
scaler hardware will produce for a requested size.

The problem is that get_scale(struct cx231xx *dev, ..., unsigned int *vscale,
unsigned int *hscale) saves the calculated scale values into both the
pointer arguments and into dev's hscale and vscale fields.  TRY_FMT shouldn't
actually change anything in the device state.

The code to in get_scale() that writes to dev->[hv]scale can just be
deleted.  In all cases when dev's fields should be modified, get_scale()
was called with get_scale(dev, ..., &dev->hscale, &dev->vscale), so dev was
getting updated anyway.

This didn't actually cause a problem because nothing ever actually made use
of the hscale and vscale fields.  I changed cx231xx_resolution_set() to use
those fields rather than re-calculate them with a call to get_scale().

Updating [hv]scale in cx231xx_resolution_set() isn't necessary because
every call of cx231xx_resolution_set() was already preceded by a call to
get_scale() or setting the [hv]scale fields, so they will be always be
up-to-date w.r.t. width and height.

Removing the call to get_scale() from cx231xx_resolution_set() allowed
making get_scale() a static function, which is a good thing for something
with such a short name.  There is already another function with the same
name in the em28xx driver, but that one is static.

Signed-off-by: Trent Piepho <xyzzy@speakeasy.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-06-23 03:21:20 -03:00

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/*
cx231xx_avcore.c - driver for Conexant Cx23100/101/102
USB video capture devices
Copyright (C) 2008 <srinivasa.deevi at conexant dot com>
This program contains the specific code to control the avdecoder chip and
other related usb control functions for cx231xx based chipset.
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/init.h>
#include <linux/list.h>
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/bitmap.h>
#include <linux/usb.h>
#include <linux/i2c.h>
#include <linux/mm.h>
#include <linux/mutex.h>
#include <media/v4l2-common.h>
#include <media/v4l2-ioctl.h>
#include <media/v4l2-chip-ident.h>
#include "cx231xx.h"
/******************************************************************************
-: BLOCK ARRANGEMENT :-
I2S block ----------------------|
[I2S audio] |
|
Analog Front End --> Direct IF -|-> Cx25840 --> Audio
[video & audio] | [Audio]
|
|-> Cx25840 --> Video
[Video]
*******************************************************************************/
/******************************************************************************
* A F E - B L O C K C O N T R O L functions *
* [ANALOG FRONT END] *
******************************************************************************/
static int afe_write_byte(struct cx231xx *dev, u16 saddr, u8 data)
{
return cx231xx_write_i2c_data(dev, AFE_DEVICE_ADDRESS,
saddr, 2, data, 1);
}
static int afe_read_byte(struct cx231xx *dev, u16 saddr, u8 *data)
{
int status;
u32 temp = 0;
status = cx231xx_read_i2c_data(dev, AFE_DEVICE_ADDRESS,
saddr, 2, &temp, 1);
*data = (u8) temp;
return status;
}
int cx231xx_afe_init_super_block(struct cx231xx *dev, u32 ref_count)
{
int status = 0;
u8 temp = 0;
u8 afe_power_status = 0;
int i = 0;
/* super block initialize */
temp = (u8) (ref_count & 0xff);
status = afe_write_byte(dev, SUP_BLK_TUNE2, temp);
if (status < 0)
return status;
status = afe_read_byte(dev, SUP_BLK_TUNE2, &afe_power_status);
if (status < 0)
return status;
temp = (u8) ((ref_count & 0x300) >> 8);
temp |= 0x40;
status = afe_write_byte(dev, SUP_BLK_TUNE1, temp);
if (status < 0)
return status;
status = afe_write_byte(dev, SUP_BLK_PLL2, 0x0f);
if (status < 0)
return status;
/* enable pll */
while (afe_power_status != 0x18) {
status = afe_write_byte(dev, SUP_BLK_PWRDN, 0x18);
if (status < 0) {
cx231xx_info(
": Init Super Block failed in send cmd\n");
break;
}
status = afe_read_byte(dev, SUP_BLK_PWRDN, &afe_power_status);
afe_power_status &= 0xff;
if (status < 0) {
cx231xx_info(
": Init Super Block failed in receive cmd\n");
break;
}
i++;
if (i == 10) {
cx231xx_info(
": Init Super Block force break in loop !!!!\n");
status = -1;
break;
}
}
if (status < 0)
return status;
/* start tuning filter */
status = afe_write_byte(dev, SUP_BLK_TUNE3, 0x40);
if (status < 0)
return status;
msleep(5);
/* exit tuning */
status = afe_write_byte(dev, SUP_BLK_TUNE3, 0x00);
return status;
}
int cx231xx_afe_init_channels(struct cx231xx *dev)
{
int status = 0;
/* power up all 3 channels, clear pd_buffer */
status = afe_write_byte(dev, ADC_PWRDN_CLAMP_CH1, 0x00);
status = afe_write_byte(dev, ADC_PWRDN_CLAMP_CH2, 0x00);
status = afe_write_byte(dev, ADC_PWRDN_CLAMP_CH3, 0x00);
/* Enable quantizer calibration */
status = afe_write_byte(dev, ADC_COM_QUANT, 0x02);
/* channel initialize, force modulator (fb) reset */
status = afe_write_byte(dev, ADC_FB_FRCRST_CH1, 0x17);
status = afe_write_byte(dev, ADC_FB_FRCRST_CH2, 0x17);
status = afe_write_byte(dev, ADC_FB_FRCRST_CH3, 0x17);
/* start quantilizer calibration */
status = afe_write_byte(dev, ADC_CAL_ATEST_CH1, 0x10);
status = afe_write_byte(dev, ADC_CAL_ATEST_CH2, 0x10);
status = afe_write_byte(dev, ADC_CAL_ATEST_CH3, 0x10);
msleep(5);
/* exit modulator (fb) reset */
status = afe_write_byte(dev, ADC_FB_FRCRST_CH1, 0x07);
status = afe_write_byte(dev, ADC_FB_FRCRST_CH2, 0x07);
status = afe_write_byte(dev, ADC_FB_FRCRST_CH3, 0x07);
/* enable the pre_clamp in each channel for single-ended input */
status = afe_write_byte(dev, ADC_NTF_PRECLMP_EN_CH1, 0xf0);
status = afe_write_byte(dev, ADC_NTF_PRECLMP_EN_CH2, 0xf0);
status = afe_write_byte(dev, ADC_NTF_PRECLMP_EN_CH3, 0xf0);
/* use diode instead of resistor, so set term_en to 0, res_en to 0 */
status = cx231xx_reg_mask_write(dev, AFE_DEVICE_ADDRESS, 8,
ADC_QGAIN_RES_TRM_CH1, 3, 7, 0x00);
status = cx231xx_reg_mask_write(dev, AFE_DEVICE_ADDRESS, 8,
ADC_QGAIN_RES_TRM_CH2, 3, 7, 0x00);
status = cx231xx_reg_mask_write(dev, AFE_DEVICE_ADDRESS, 8,
ADC_QGAIN_RES_TRM_CH3, 3, 7, 0x00);
/* dynamic element matching off */
status = afe_write_byte(dev, ADC_DCSERVO_DEM_CH1, 0x03);
status = afe_write_byte(dev, ADC_DCSERVO_DEM_CH2, 0x03);
status = afe_write_byte(dev, ADC_DCSERVO_DEM_CH3, 0x03);
return status;
}
int cx231xx_afe_setup_AFE_for_baseband(struct cx231xx *dev)
{
u8 c_value = 0;
int status = 0;
status = afe_read_byte(dev, ADC_PWRDN_CLAMP_CH2, &c_value);
c_value &= (~(0x50));
status = afe_write_byte(dev, ADC_PWRDN_CLAMP_CH2, c_value);
return status;
}
/*
The Analog Front End in Cx231xx has 3 channels. These
channels are used to share between different inputs
like tuner, s-video and composite inputs.
channel 1 ----- pin 1 to pin4(in reg is 1-4)
channel 2 ----- pin 5 to pin8(in reg is 5-8)
channel 3 ----- pin 9 to pin 12(in reg is 9-11)
*/
int cx231xx_afe_set_input_mux(struct cx231xx *dev, u32 input_mux)
{
u8 ch1_setting = (u8) input_mux;
u8 ch2_setting = (u8) (input_mux >> 8);
u8 ch3_setting = (u8) (input_mux >> 16);
int status = 0;
u8 value = 0;
if (ch1_setting != 0) {
status = afe_read_byte(dev, ADC_INPUT_CH1, &value);
value &= (!INPUT_SEL_MASK);
value |= (ch1_setting - 1) << 4;
value &= 0xff;
status = afe_write_byte(dev, ADC_INPUT_CH1, value);
}
if (ch2_setting != 0) {
status = afe_read_byte(dev, ADC_INPUT_CH2, &value);
value &= (!INPUT_SEL_MASK);
value |= (ch2_setting - 1) << 4;
value &= 0xff;
status = afe_write_byte(dev, ADC_INPUT_CH2, value);
}
/* For ch3_setting, the value to put in the register is
7 less than the input number */
if (ch3_setting != 0) {
status = afe_read_byte(dev, ADC_INPUT_CH3, &value);
value &= (!INPUT_SEL_MASK);
value |= (ch3_setting - 1) << 4;
value &= 0xff;
status = afe_write_byte(dev, ADC_INPUT_CH3, value);
}
return status;
}
int cx231xx_afe_set_mode(struct cx231xx *dev, enum AFE_MODE mode)
{
int status = 0;
/*
* FIXME: We need to implement the AFE code for LOW IF and for HI IF.
* Currently, only baseband works.
*/
switch (mode) {
case AFE_MODE_LOW_IF:
/* SetupAFEforLowIF(); */
break;
case AFE_MODE_BASEBAND:
status = cx231xx_afe_setup_AFE_for_baseband(dev);
break;
case AFE_MODE_EU_HI_IF:
/* SetupAFEforEuHiIF(); */
break;
case AFE_MODE_US_HI_IF:
/* SetupAFEforUsHiIF(); */
break;
case AFE_MODE_JAPAN_HI_IF:
/* SetupAFEforJapanHiIF(); */
break;
}
if ((mode != dev->afe_mode) &&
(dev->video_input == CX231XX_VMUX_TELEVISION))
status = cx231xx_afe_adjust_ref_count(dev,
CX231XX_VMUX_TELEVISION);
dev->afe_mode = mode;
return status;
}
int cx231xx_afe_update_power_control(struct cx231xx *dev,
enum AV_MODE avmode)
{
u8 afe_power_status = 0;
int status = 0;
switch (dev->model) {
case CX231XX_BOARD_CNXT_RDE_250:
case CX231XX_BOARD_CNXT_RDU_250:
if (avmode == POLARIS_AVMODE_ANALOGT_TV) {
while (afe_power_status != (FLD_PWRDN_TUNING_BIAS |
FLD_PWRDN_ENABLE_PLL)) {
status = afe_write_byte(dev, SUP_BLK_PWRDN,
FLD_PWRDN_TUNING_BIAS |
FLD_PWRDN_ENABLE_PLL);
status |= afe_read_byte(dev, SUP_BLK_PWRDN,
&afe_power_status);
if (status < 0)
break;
}
status = afe_write_byte(dev, ADC_PWRDN_CLAMP_CH1,
0x00);
status |= afe_write_byte(dev, ADC_PWRDN_CLAMP_CH2,
0x00);
status |= afe_write_byte(dev, ADC_PWRDN_CLAMP_CH3,
0x00);
} else if (avmode == POLARIS_AVMODE_DIGITAL) {
status = afe_write_byte(dev, ADC_PWRDN_CLAMP_CH1,
0x70);
status |= afe_write_byte(dev, ADC_PWRDN_CLAMP_CH2,
0x70);
status |= afe_write_byte(dev, ADC_PWRDN_CLAMP_CH3,
0x70);
status |= afe_read_byte(dev, SUP_BLK_PWRDN,
&afe_power_status);
afe_power_status |= FLD_PWRDN_PD_BANDGAP |
FLD_PWRDN_PD_BIAS |
FLD_PWRDN_PD_TUNECK;
status |= afe_write_byte(dev, SUP_BLK_PWRDN,
afe_power_status);
} else if (avmode == POLARIS_AVMODE_ENXTERNAL_AV) {
while (afe_power_status != (FLD_PWRDN_TUNING_BIAS |
FLD_PWRDN_ENABLE_PLL)) {
status = afe_write_byte(dev, SUP_BLK_PWRDN,
FLD_PWRDN_TUNING_BIAS |
FLD_PWRDN_ENABLE_PLL);
status |= afe_read_byte(dev, SUP_BLK_PWRDN,
&afe_power_status);
if (status < 0)
break;
}
status |= afe_write_byte(dev, ADC_PWRDN_CLAMP_CH1,
0x00);
status |= afe_write_byte(dev, ADC_PWRDN_CLAMP_CH2,
0x00);
status |= afe_write_byte(dev, ADC_PWRDN_CLAMP_CH3,
0x00);
} else {
cx231xx_info("Invalid AV mode input\n");
status = -1;
}
break;
default:
if (avmode == POLARIS_AVMODE_ANALOGT_TV) {
while (afe_power_status != (FLD_PWRDN_TUNING_BIAS |
FLD_PWRDN_ENABLE_PLL)) {
status = afe_write_byte(dev, SUP_BLK_PWRDN,
FLD_PWRDN_TUNING_BIAS |
FLD_PWRDN_ENABLE_PLL);
status |= afe_read_byte(dev, SUP_BLK_PWRDN,
&afe_power_status);
if (status < 0)
break;
}
status |= afe_write_byte(dev, ADC_PWRDN_CLAMP_CH1,
0x40);
status |= afe_write_byte(dev, ADC_PWRDN_CLAMP_CH2,
0x40);
status |= afe_write_byte(dev, ADC_PWRDN_CLAMP_CH3,
0x00);
} else if (avmode == POLARIS_AVMODE_DIGITAL) {
status = afe_write_byte(dev, ADC_PWRDN_CLAMP_CH1,
0x70);
status |= afe_write_byte(dev, ADC_PWRDN_CLAMP_CH2,
0x70);
status |= afe_write_byte(dev, ADC_PWRDN_CLAMP_CH3,
0x70);
status |= afe_read_byte(dev, SUP_BLK_PWRDN,
&afe_power_status);
afe_power_status |= FLD_PWRDN_PD_BANDGAP |
FLD_PWRDN_PD_BIAS |
FLD_PWRDN_PD_TUNECK;
status |= afe_write_byte(dev, SUP_BLK_PWRDN,
afe_power_status);
} else if (avmode == POLARIS_AVMODE_ENXTERNAL_AV) {
while (afe_power_status != (FLD_PWRDN_TUNING_BIAS |
FLD_PWRDN_ENABLE_PLL)) {
status = afe_write_byte(dev, SUP_BLK_PWRDN,
FLD_PWRDN_TUNING_BIAS |
FLD_PWRDN_ENABLE_PLL);
status |= afe_read_byte(dev, SUP_BLK_PWRDN,
&afe_power_status);
if (status < 0)
break;
}
status |= afe_write_byte(dev, ADC_PWRDN_CLAMP_CH1,
0x00);
status |= afe_write_byte(dev, ADC_PWRDN_CLAMP_CH2,
0x00);
status |= afe_write_byte(dev, ADC_PWRDN_CLAMP_CH3,
0x40);
} else {
cx231xx_info("Invalid AV mode input\n");
status = -1;
}
} /* switch */
return status;
}
int cx231xx_afe_adjust_ref_count(struct cx231xx *dev, u32 video_input)
{
u8 input_mode = 0;
u8 ntf_mode = 0;
int status = 0;
dev->video_input = video_input;
if (video_input == CX231XX_VMUX_TELEVISION) {
status = afe_read_byte(dev, ADC_INPUT_CH3, &input_mode);
status = afe_read_byte(dev, ADC_NTF_PRECLMP_EN_CH3,
&ntf_mode);
} else {
status = afe_read_byte(dev, ADC_INPUT_CH1, &input_mode);
status = afe_read_byte(dev, ADC_NTF_PRECLMP_EN_CH1,
&ntf_mode);
}
input_mode = (ntf_mode & 0x3) | ((input_mode & 0x6) << 1);
switch (input_mode) {
case SINGLE_ENDED:
dev->afe_ref_count = 0x23C;
break;
case LOW_IF:
dev->afe_ref_count = 0x24C;
break;
case EU_IF:
dev->afe_ref_count = 0x258;
break;
case US_IF:
dev->afe_ref_count = 0x260;
break;
default:
break;
}
status = cx231xx_afe_init_super_block(dev, dev->afe_ref_count);
return status;
}
/******************************************************************************
* V I D E O / A U D I O D E C O D E R C O N T R O L functions *
******************************************************************************/
static int vid_blk_write_byte(struct cx231xx *dev, u16 saddr, u8 data)
{
return cx231xx_write_i2c_data(dev, VID_BLK_I2C_ADDRESS,
saddr, 2, data, 1);
}
static int vid_blk_read_byte(struct cx231xx *dev, u16 saddr, u8 *data)
{
int status;
u32 temp = 0;
status = cx231xx_read_i2c_data(dev, VID_BLK_I2C_ADDRESS,
saddr, 2, &temp, 1);
*data = (u8) temp;
return status;
}
static int vid_blk_write_word(struct cx231xx *dev, u16 saddr, u32 data)
{
return cx231xx_write_i2c_data(dev, VID_BLK_I2C_ADDRESS,
saddr, 2, data, 4);
}
static int vid_blk_read_word(struct cx231xx *dev, u16 saddr, u32 *data)
{
return cx231xx_read_i2c_data(dev, VID_BLK_I2C_ADDRESS,
saddr, 2, data, 4);
}
int cx231xx_set_video_input_mux(struct cx231xx *dev, u8 input)
{
int status = 0;
switch (INPUT(input)->type) {
case CX231XX_VMUX_COMPOSITE1:
case CX231XX_VMUX_SVIDEO:
if ((dev->current_pcb_config.type == USB_BUS_POWER) &&
(dev->power_mode != POLARIS_AVMODE_ENXTERNAL_AV)) {
/* External AV */
status = cx231xx_set_power_mode(dev,
POLARIS_AVMODE_ENXTERNAL_AV);
if (status < 0) {
cx231xx_errdev("%s: set_power_mode : Failed to"
" set Power - errCode [%d]!\n",
__func__, status);
return status;
}
}
status = cx231xx_set_decoder_video_input(dev,
INPUT(input)->type,
INPUT(input)->vmux);
break;
case CX231XX_VMUX_TELEVISION:
case CX231XX_VMUX_CABLE:
if ((dev->current_pcb_config.type == USB_BUS_POWER) &&
(dev->power_mode != POLARIS_AVMODE_ANALOGT_TV)) {
/* Tuner */
status = cx231xx_set_power_mode(dev,
POLARIS_AVMODE_ANALOGT_TV);
if (status < 0) {
cx231xx_errdev("%s: set_power_mode:Failed"
" to set Power - errCode [%d]!\n",
__func__, status);
return status;
}
}
status = cx231xx_set_decoder_video_input(dev,
CX231XX_VMUX_COMPOSITE1,
INPUT(input)->vmux);
break;
default:
cx231xx_errdev("%s: set_power_mode : Unknown Input %d !\n",
__func__, INPUT(input)->type);
break;
}
/* save the selection */
dev->video_input = input;
return status;
}
int cx231xx_set_decoder_video_input(struct cx231xx *dev,
u8 pin_type, u8 input)
{
int status = 0;
u32 value = 0;
if (pin_type != dev->video_input) {
status = cx231xx_afe_adjust_ref_count(dev, pin_type);
if (status < 0) {
cx231xx_errdev("%s: adjust_ref_count :Failed to set"
"AFE input mux - errCode [%d]!\n",
__func__, status);
return status;
}
}
/* call afe block to set video inputs */
status = cx231xx_afe_set_input_mux(dev, input);
if (status < 0) {
cx231xx_errdev("%s: set_input_mux :Failed to set"
" AFE input mux - errCode [%d]!\n",
__func__, status);
return status;
}
switch (pin_type) {
case CX231XX_VMUX_COMPOSITE1:
status = vid_blk_read_word(dev, AFE_CTRL, &value);
value |= (0 << 13) | (1 << 4);
value &= ~(1 << 5);
/* set [24:23] [22:15] to 0 */
value &= (~(0x1ff8000));
/* set FUNC_MODE[24:23] = 2 IF_MOD[22:15] = 0 */
value |= 0x1000000;
status = vid_blk_write_word(dev, AFE_CTRL, value);
status = vid_blk_read_word(dev, OUT_CTRL1, &value);
value |= (1 << 7);
status = vid_blk_write_word(dev, OUT_CTRL1, value);
/* Set vip 1.1 output mode */
status = cx231xx_read_modify_write_i2c_dword(dev,
VID_BLK_I2C_ADDRESS,
OUT_CTRL1,
FLD_OUT_MODE,
OUT_MODE_VIP11);
/* Tell DIF object to go to baseband mode */
status = cx231xx_dif_set_standard(dev, DIF_USE_BASEBAND);
if (status < 0) {
cx231xx_errdev("%s: cx231xx_dif set to By pass"
" mode- errCode [%d]!\n",
__func__, status);
return status;
}
/* Read the DFE_CTRL1 register */
status = vid_blk_read_word(dev, DFE_CTRL1, &value);
/* enable the VBI_GATE_EN */
value |= FLD_VBI_GATE_EN;
/* Enable the auto-VGA enable */
value |= FLD_VGA_AUTO_EN;
/* Write it back */
status = vid_blk_write_word(dev, DFE_CTRL1, value);
/* Disable auto config of registers */
status = cx231xx_read_modify_write_i2c_dword(dev,
VID_BLK_I2C_ADDRESS,
MODE_CTRL, FLD_ACFG_DIS,
cx231xx_set_field(FLD_ACFG_DIS, 1));
/* Set CVBS input mode */
status = cx231xx_read_modify_write_i2c_dword(dev,
VID_BLK_I2C_ADDRESS,
MODE_CTRL, FLD_INPUT_MODE,
cx231xx_set_field(FLD_INPUT_MODE, INPUT_MODE_CVBS_0));
break;
case CX231XX_VMUX_SVIDEO:
/* Disable the use of DIF */
status = vid_blk_read_word(dev, AFE_CTRL, &value);
/* set [24:23] [22:15] to 0 */
value &= (~(0x1ff8000));
/* set FUNC_MODE[24:23] = 2
IF_MOD[22:15] = 0 DCR_BYP_CH2[4:4] = 1; */
value |= 0x1000010;
status = vid_blk_write_word(dev, AFE_CTRL, value);
/* Tell DIF object to go to baseband mode */
status = cx231xx_dif_set_standard(dev, DIF_USE_BASEBAND);
if (status < 0) {
cx231xx_errdev("%s: cx231xx_dif set to By pass"
" mode- errCode [%d]!\n",
__func__, status);
return status;
}
/* Read the DFE_CTRL1 register */
status = vid_blk_read_word(dev, DFE_CTRL1, &value);
/* enable the VBI_GATE_EN */
value |= FLD_VBI_GATE_EN;
/* Enable the auto-VGA enable */
value |= FLD_VGA_AUTO_EN;
/* Write it back */
status = vid_blk_write_word(dev, DFE_CTRL1, value);
/* Disable auto config of registers */
status = cx231xx_read_modify_write_i2c_dword(dev,
VID_BLK_I2C_ADDRESS,
MODE_CTRL, FLD_ACFG_DIS,
cx231xx_set_field(FLD_ACFG_DIS, 1));
/* Set YC input mode */
status = cx231xx_read_modify_write_i2c_dword(dev,
VID_BLK_I2C_ADDRESS,
MODE_CTRL,
FLD_INPUT_MODE,
cx231xx_set_field(FLD_INPUT_MODE, INPUT_MODE_YC_1));
/* Chroma to ADC2 */
status = vid_blk_read_word(dev, AFE_CTRL, &value);
value |= FLD_CHROMA_IN_SEL; /* set the chroma in select */
/* Clear VGA_SEL_CH2 and VGA_SEL_CH3 (bits 7 and 8)
This sets them to use video
rather than audio. Only one of the two will be in use. */
value &= ~(FLD_VGA_SEL_CH2 | FLD_VGA_SEL_CH3);
status = vid_blk_write_word(dev, AFE_CTRL, value);
status = cx231xx_afe_set_mode(dev, AFE_MODE_BASEBAND);
break;
case CX231XX_VMUX_TELEVISION:
case CX231XX_VMUX_CABLE:
default:
switch (dev->model) {
case CX231XX_BOARD_CNXT_RDE_250:
case CX231XX_BOARD_CNXT_RDU_250:
/* Disable the use of DIF */
status = vid_blk_read_word(dev, AFE_CTRL, &value);
value |= (0 << 13) | (1 << 4);
value &= ~(1 << 5);
/* set [24:23] [22:15] to 0 */
value &= (~(0x1FF8000));
/* set FUNC_MODE[24:23] = 2 IF_MOD[22:15] = 0 */
value |= 0x1000000;
status = vid_blk_write_word(dev, AFE_CTRL, value);
status = vid_blk_read_word(dev, OUT_CTRL1, &value);
value |= (1 << 7);
status = vid_blk_write_word(dev, OUT_CTRL1, value);
/* Set vip 1.1 output mode */
status = cx231xx_read_modify_write_i2c_dword(dev,
VID_BLK_I2C_ADDRESS,
OUT_CTRL1, FLD_OUT_MODE,
OUT_MODE_VIP11);
/* Tell DIF object to go to baseband mode */
status = cx231xx_dif_set_standard(dev,
DIF_USE_BASEBAND);
if (status < 0) {
cx231xx_errdev("%s: cx231xx_dif set to By pass"
" mode- errCode [%d]!\n",
__func__, status);
return status;
}
/* Read the DFE_CTRL1 register */
status = vid_blk_read_word(dev, DFE_CTRL1, &value);
/* enable the VBI_GATE_EN */
value |= FLD_VBI_GATE_EN;
/* Enable the auto-VGA enable */
value |= FLD_VGA_AUTO_EN;
/* Write it back */
status = vid_blk_write_word(dev, DFE_CTRL1, value);
/* Disable auto config of registers */
status = cx231xx_read_modify_write_i2c_dword(dev,
VID_BLK_I2C_ADDRESS,
MODE_CTRL, FLD_ACFG_DIS,
cx231xx_set_field(FLD_ACFG_DIS, 1));
/* Set CVBS input mode */
status = cx231xx_read_modify_write_i2c_dword(dev,
VID_BLK_I2C_ADDRESS,
MODE_CTRL, FLD_INPUT_MODE,
cx231xx_set_field(FLD_INPUT_MODE,
INPUT_MODE_CVBS_0));
break;
default:
/* Enable the DIF for the tuner */
/* Reinitialize the DIF */
status = cx231xx_dif_set_standard(dev, dev->norm);
if (status < 0) {
cx231xx_errdev("%s: cx231xx_dif set to By pass"
" mode- errCode [%d]!\n",
__func__, status);
return status;
}
/* Make sure bypass is cleared */
status = vid_blk_read_word(dev, DIF_MISC_CTRL, &value);
/* Clear the bypass bit */
value &= ~FLD_DIF_DIF_BYPASS;
/* Enable the use of the DIF block */
status = vid_blk_write_word(dev, DIF_MISC_CTRL, value);
/* Read the DFE_CTRL1 register */
status = vid_blk_read_word(dev, DFE_CTRL1, &value);
/* Disable the VBI_GATE_EN */
value &= ~FLD_VBI_GATE_EN;
/* Enable the auto-VGA enable, AGC, and
set the skip count to 2 */
value |= FLD_VGA_AUTO_EN | FLD_AGC_AUTO_EN | 0x00200000;
/* Write it back */
status = vid_blk_write_word(dev, DFE_CTRL1, value);
/* Wait until AGC locks up */
msleep(1);
/* Disable the auto-VGA enable AGC */
value &= ~(FLD_VGA_AUTO_EN);
/* Write it back */
status = vid_blk_write_word(dev, DFE_CTRL1, value);
/* Enable Polaris B0 AGC output */
status = vid_blk_read_word(dev, PIN_CTRL, &value);
value |= (FLD_OEF_AGC_RF) |
(FLD_OEF_AGC_IFVGA) |
(FLD_OEF_AGC_IF);
status = vid_blk_write_word(dev, PIN_CTRL, value);
/* Set vip 1.1 output mode */
status = cx231xx_read_modify_write_i2c_dword(dev,
VID_BLK_I2C_ADDRESS,
OUT_CTRL1, FLD_OUT_MODE,
OUT_MODE_VIP11);
/* Disable auto config of registers */
status = cx231xx_read_modify_write_i2c_dword(dev,
VID_BLK_I2C_ADDRESS,
MODE_CTRL, FLD_ACFG_DIS,
cx231xx_set_field(FLD_ACFG_DIS, 1));
/* Set CVBS input mode */
status = cx231xx_read_modify_write_i2c_dword(dev,
VID_BLK_I2C_ADDRESS,
MODE_CTRL, FLD_INPUT_MODE,
cx231xx_set_field(FLD_INPUT_MODE,
INPUT_MODE_CVBS_0));
/* Set some bits in AFE_CTRL so that channel 2 or 3
* is ready to receive audio */
/* Clear clamp for channels 2 and 3 (bit 16-17) */
/* Clear droop comp (bit 19-20) */
/* Set VGA_SEL (for audio control) (bit 7-8) */
status = vid_blk_read_word(dev, AFE_CTRL, &value);
value |= FLD_VGA_SEL_CH3 | FLD_VGA_SEL_CH2;
status = vid_blk_write_word(dev, AFE_CTRL, value);
break;
}
break;
}
/* Set raw VBI mode */
status = cx231xx_read_modify_write_i2c_dword(dev,
VID_BLK_I2C_ADDRESS,
OUT_CTRL1, FLD_VBIHACTRAW_EN,
cx231xx_set_field(FLD_VBIHACTRAW_EN, 1));
status = vid_blk_read_word(dev, OUT_CTRL1, &value);
if (value & 0x02) {
value |= (1 << 19);
status = vid_blk_write_word(dev, OUT_CTRL1, value);
}
return status;
}
/*
* Handle any video-mode specific overrides that are different
* on a per video standards basis after touching the MODE_CTRL
* register which resets many values for autodetect
*/
int cx231xx_do_mode_ctrl_overrides(struct cx231xx *dev)
{
int status = 0;
cx231xx_info("do_mode_ctrl_overrides : 0x%x\n",
(unsigned int)dev->norm);
/* Change the DFE_CTRL3 bp_percent to fix flagging */
status = vid_blk_write_word(dev, DFE_CTRL3, 0xCD3F0280);
if (dev->norm & (V4L2_STD_NTSC | V4L2_STD_PAL_M)) {
cx231xx_info("do_mode_ctrl_overrides NTSC\n");
/* Move the close caption lines out of active video,
adjust the active video start point */
status = cx231xx_read_modify_write_i2c_dword(dev,
VID_BLK_I2C_ADDRESS,
VERT_TIM_CTRL,
FLD_VBLANK_CNT, 0x18);
status = cx231xx_read_modify_write_i2c_dword(dev,
VID_BLK_I2C_ADDRESS,
VERT_TIM_CTRL,
FLD_VACTIVE_CNT,
0x1E6000);
status = cx231xx_read_modify_write_i2c_dword(dev,
VID_BLK_I2C_ADDRESS,
VERT_TIM_CTRL,
FLD_V656BLANK_CNT,
0x1E000000);
status = cx231xx_read_modify_write_i2c_dword(dev,
VID_BLK_I2C_ADDRESS,
HORIZ_TIM_CTRL,
FLD_HBLANK_CNT,
cx231xx_set_field
(FLD_HBLANK_CNT, 0x79));
} else if (dev->norm & V4L2_STD_SECAM) {
cx231xx_info("do_mode_ctrl_overrides SECAM\n");
status = cx231xx_read_modify_write_i2c_dword(dev,
VID_BLK_I2C_ADDRESS,
VERT_TIM_CTRL,
FLD_VBLANK_CNT, 0x24);
/* Adjust the active video horizontal start point */
status = cx231xx_read_modify_write_i2c_dword(dev,
VID_BLK_I2C_ADDRESS,
HORIZ_TIM_CTRL,
FLD_HBLANK_CNT,
cx231xx_set_field
(FLD_HBLANK_CNT, 0x85));
} else {
cx231xx_info("do_mode_ctrl_overrides PAL\n");
status = cx231xx_read_modify_write_i2c_dword(dev,
VID_BLK_I2C_ADDRESS,
VERT_TIM_CTRL,
FLD_VBLANK_CNT, 0x24);
/* Adjust the active video horizontal start point */
status = cx231xx_read_modify_write_i2c_dword(dev,
VID_BLK_I2C_ADDRESS,
HORIZ_TIM_CTRL,
FLD_HBLANK_CNT,
cx231xx_set_field
(FLD_HBLANK_CNT, 0x85));
}
return status;
}
int cx231xx_set_audio_input(struct cx231xx *dev, u8 input)
{
int status = 0;
enum AUDIO_INPUT ainput = AUDIO_INPUT_LINE;
switch (INPUT(input)->amux) {
case CX231XX_AMUX_VIDEO:
ainput = AUDIO_INPUT_TUNER_TV;
break;
case CX231XX_AMUX_LINE_IN:
status = cx231xx_i2s_blk_set_audio_input(dev, input);
ainput = AUDIO_INPUT_LINE;
break;
default:
break;
}
status = cx231xx_set_audio_decoder_input(dev, ainput);
return status;
}
int cx231xx_set_audio_decoder_input(struct cx231xx *dev,
enum AUDIO_INPUT audio_input)
{
u32 dwval;
int status;
u8 gen_ctrl;
u32 value = 0;
/* Put it in soft reset */
status = vid_blk_read_byte(dev, GENERAL_CTL, &gen_ctrl);
gen_ctrl |= 1;
status = vid_blk_write_byte(dev, GENERAL_CTL, gen_ctrl);
switch (audio_input) {
case AUDIO_INPUT_LINE:
/* setup AUD_IO control from Merlin paralle output */
value = cx231xx_set_field(FLD_AUD_CHAN1_SRC,
AUD_CHAN_SRC_PARALLEL);
status = vid_blk_write_word(dev, AUD_IO_CTRL, value);
/* setup input to Merlin, SRC2 connect to AC97
bypass upsample-by-2, slave mode, sony mode, left justify
adr 091c, dat 01000000 */
status = vid_blk_read_word(dev, AC97_CTL, &dwval);
status = vid_blk_write_word(dev, AC97_CTL,
(dwval | FLD_AC97_UP2X_BYPASS));
/* select the parallel1 and SRC3 */
status = vid_blk_write_word(dev, BAND_OUT_SEL,
cx231xx_set_field(FLD_SRC3_IN_SEL, 0x0) |
cx231xx_set_field(FLD_SRC3_CLK_SEL, 0x0) |
cx231xx_set_field(FLD_PARALLEL1_SRC_SEL, 0x0));
/* unmute all, AC97 in, independence mode
adr 08d0, data 0x00063073 */
status = vid_blk_write_word(dev, PATH1_CTL1, 0x00063073);
/* set AVC maximum threshold, adr 08d4, dat ffff0024 */
status = vid_blk_read_word(dev, PATH1_VOL_CTL, &dwval);
status = vid_blk_write_word(dev, PATH1_VOL_CTL,
(dwval | FLD_PATH1_AVC_THRESHOLD));
/* set SC maximum threshold, adr 08ec, dat ffffb3a3 */
status = vid_blk_read_word(dev, PATH1_SC_CTL, &dwval);
status = vid_blk_write_word(dev, PATH1_SC_CTL,
(dwval | FLD_PATH1_SC_THRESHOLD));
break;
case AUDIO_INPUT_TUNER_TV:
default:
/* Setup SRC sources and clocks */
status = vid_blk_write_word(dev, BAND_OUT_SEL,
cx231xx_set_field(FLD_SRC6_IN_SEL, 0x00) |
cx231xx_set_field(FLD_SRC6_CLK_SEL, 0x01) |
cx231xx_set_field(FLD_SRC5_IN_SEL, 0x00) |
cx231xx_set_field(FLD_SRC5_CLK_SEL, 0x02) |
cx231xx_set_field(FLD_SRC4_IN_SEL, 0x02) |
cx231xx_set_field(FLD_SRC4_CLK_SEL, 0x03) |
cx231xx_set_field(FLD_SRC3_IN_SEL, 0x00) |
cx231xx_set_field(FLD_SRC3_CLK_SEL, 0x00) |
cx231xx_set_field(FLD_BASEBAND_BYPASS_CTL, 0x00) |
cx231xx_set_field(FLD_AC97_SRC_SEL, 0x03) |
cx231xx_set_field(FLD_I2S_SRC_SEL, 0x00) |
cx231xx_set_field(FLD_PARALLEL2_SRC_SEL, 0x02) |
cx231xx_set_field(FLD_PARALLEL1_SRC_SEL, 0x01));
/* Setup the AUD_IO control */
status = vid_blk_write_word(dev, AUD_IO_CTRL,
cx231xx_set_field(FLD_I2S_PORT_DIR, 0x00) |
cx231xx_set_field(FLD_I2S_OUT_SRC, 0x00) |
cx231xx_set_field(FLD_AUD_CHAN3_SRC, 0x00) |
cx231xx_set_field(FLD_AUD_CHAN2_SRC, 0x00) |
cx231xx_set_field(FLD_AUD_CHAN1_SRC, 0x03));
status = vid_blk_write_word(dev, PATH1_CTL1, 0x1F063870);
/* setAudioStandard(_audio_standard); */
status = vid_blk_write_word(dev, PATH1_CTL1, 0x00063870);
switch (dev->model) {
case CX231XX_BOARD_CNXT_RDE_250:
case CX231XX_BOARD_CNXT_RDU_250:
status = cx231xx_read_modify_write_i2c_dword(dev,
VID_BLK_I2C_ADDRESS,
CHIP_CTRL,
FLD_SIF_EN,
cx231xx_set_field(FLD_SIF_EN, 1));
break;
default:
break;
}
break;
case AUDIO_INPUT_TUNER_FM:
/* use SIF for FM radio
setupFM();
setAudioStandard(_audio_standard);
*/
break;
case AUDIO_INPUT_MUTE:
status = vid_blk_write_word(dev, PATH1_CTL1, 0x1F011012);
break;
}
/* Take it out of soft reset */
status = vid_blk_read_byte(dev, GENERAL_CTL, &gen_ctrl);
gen_ctrl &= ~1;
status = vid_blk_write_byte(dev, GENERAL_CTL, gen_ctrl);
return status;
}
/* Set resolution of the video */
int cx231xx_resolution_set(struct cx231xx *dev)
{
/* set horzontal scale */
int status = vid_blk_write_word(dev, HSCALE_CTRL, dev->hscale);
if (status)
return status;
/* set vertical scale */
return vid_blk_write_word(dev, VSCALE_CTRL, dev->vscale);
}
/******************************************************************************
* C H I P Specific C O N T R O L functions *
******************************************************************************/
int cx231xx_init_ctrl_pin_status(struct cx231xx *dev)
{
u32 value;
int status = 0;
status = vid_blk_read_word(dev, PIN_CTRL, &value);
value |= (~dev->board.ctl_pin_status_mask);
status = vid_blk_write_word(dev, PIN_CTRL, value);
return status;
}
int cx231xx_set_agc_analog_digital_mux_select(struct cx231xx *dev,
u8 analog_or_digital)
{
int status = 0;
/* first set the direction to output */
status = cx231xx_set_gpio_direction(dev,
dev->board.
agc_analog_digital_select_gpio, 1);
/* 0 - demod ; 1 - Analog mode */
status = cx231xx_set_gpio_value(dev,
dev->board.agc_analog_digital_select_gpio,
analog_or_digital);
return status;
}
int cx231xx_enable_i2c_for_tuner(struct cx231xx *dev, u8 I2CIndex)
{
u8 value[4] = { 0, 0, 0, 0 };
int status = 0;
cx231xx_info("Changing the i2c port for tuner to %d\n", I2CIndex);
status = cx231xx_read_ctrl_reg(dev, VRT_GET_REGISTER,
PWR_CTL_EN, value, 4);
if (status < 0)
return status;
if (I2CIndex == I2C_1) {
if (value[0] & I2C_DEMOD_EN) {
value[0] &= ~I2C_DEMOD_EN;
status = cx231xx_write_ctrl_reg(dev, VRT_SET_REGISTER,
PWR_CTL_EN, value, 4);
}
} else {
if (!(value[0] & I2C_DEMOD_EN)) {
value[0] |= I2C_DEMOD_EN;
status = cx231xx_write_ctrl_reg(dev, VRT_SET_REGISTER,
PWR_CTL_EN, value, 4);
}
}
return status;
}
/******************************************************************************
* D I F - B L O C K C O N T R O L functions *
******************************************************************************/
int cx231xx_dif_configure_C2HH_for_low_IF(struct cx231xx *dev, u32 mode,
u32 function_mode, u32 standard)
{
int status = 0;
if (mode == V4L2_TUNER_RADIO) {
/* C2HH */
/* lo if big signal */
status = cx231xx_reg_mask_write(dev,
VID_BLK_I2C_ADDRESS, 32,
AFE_CTRL_C2HH_SRC_CTRL, 30, 31, 0x1);
/* FUNC_MODE = DIF */
status = cx231xx_reg_mask_write(dev,
VID_BLK_I2C_ADDRESS, 32,
AFE_CTRL_C2HH_SRC_CTRL, 23, 24, function_mode);
/* IF_MODE */
status = cx231xx_reg_mask_write(dev,
VID_BLK_I2C_ADDRESS, 32,
AFE_CTRL_C2HH_SRC_CTRL, 15, 22, 0xFF);
/* no inv */
status = cx231xx_reg_mask_write(dev,
VID_BLK_I2C_ADDRESS, 32,
AFE_CTRL_C2HH_SRC_CTRL, 9, 9, 0x1);
} else if (standard != DIF_USE_BASEBAND) {
if (standard & V4L2_STD_MN) {
/* lo if big signal */
status = cx231xx_reg_mask_write(dev,
VID_BLK_I2C_ADDRESS, 32,
AFE_CTRL_C2HH_SRC_CTRL, 30, 31, 0x1);
/* FUNC_MODE = DIF */
status = cx231xx_reg_mask_write(dev,
VID_BLK_I2C_ADDRESS, 32,
AFE_CTRL_C2HH_SRC_CTRL, 23, 24,
function_mode);
/* IF_MODE */
status = cx231xx_reg_mask_write(dev,
VID_BLK_I2C_ADDRESS, 32,
AFE_CTRL_C2HH_SRC_CTRL, 15, 22, 0xb);
/* no inv */
status = cx231xx_reg_mask_write(dev,
VID_BLK_I2C_ADDRESS, 32,
AFE_CTRL_C2HH_SRC_CTRL, 9, 9, 0x1);
/* 0x124, AUD_CHAN1_SRC = 0x3 */
status = cx231xx_reg_mask_write(dev,
VID_BLK_I2C_ADDRESS, 32,
AUD_IO_CTRL, 0, 31, 0x00000003);
} else if ((standard == V4L2_STD_PAL_I) |
(standard & V4L2_STD_SECAM)) {
/* C2HH setup */
/* lo if big signal */
status = cx231xx_reg_mask_write(dev,
VID_BLK_I2C_ADDRESS, 32,
AFE_CTRL_C2HH_SRC_CTRL, 30, 31, 0x1);
/* FUNC_MODE = DIF */
status = cx231xx_reg_mask_write(dev,
VID_BLK_I2C_ADDRESS, 32,
AFE_CTRL_C2HH_SRC_CTRL, 23, 24,
function_mode);
/* IF_MODE */
status = cx231xx_reg_mask_write(dev,
VID_BLK_I2C_ADDRESS, 32,
AFE_CTRL_C2HH_SRC_CTRL, 15, 22, 0xF);
/* no inv */
status = cx231xx_reg_mask_write(dev,
VID_BLK_I2C_ADDRESS, 32,
AFE_CTRL_C2HH_SRC_CTRL, 9, 9, 0x1);
} else {
/* default PAL BG */
/* C2HH setup */
/* lo if big signal */
status = cx231xx_reg_mask_write(dev,
VID_BLK_I2C_ADDRESS, 32,
AFE_CTRL_C2HH_SRC_CTRL, 30, 31, 0x1);
/* FUNC_MODE = DIF */
status = cx231xx_reg_mask_write(dev,
VID_BLK_I2C_ADDRESS, 32,
AFE_CTRL_C2HH_SRC_CTRL, 23, 24,
function_mode);
/* IF_MODE */
status = cx231xx_reg_mask_write(dev,
VID_BLK_I2C_ADDRESS, 32,
AFE_CTRL_C2HH_SRC_CTRL, 15, 22, 0xE);
/* no inv */
status = cx231xx_reg_mask_write(dev,
VID_BLK_I2C_ADDRESS, 32,
AFE_CTRL_C2HH_SRC_CTRL, 9, 9, 0x1);
}
}
return status;
}
int cx231xx_dif_set_standard(struct cx231xx *dev, u32 standard)
{
int status = 0;
u32 dif_misc_ctrl_value = 0;
u32 func_mode = 0;
cx231xx_info("%s: setStandard to %x\n", __func__, standard);
status = vid_blk_read_word(dev, DIF_MISC_CTRL, &dif_misc_ctrl_value);
if (standard != DIF_USE_BASEBAND)
dev->norm = standard;
switch (dev->model) {
case CX231XX_BOARD_CNXT_RDE_250:
case CX231XX_BOARD_CNXT_RDU_250:
func_mode = 0x03;
break;
default:
func_mode = 0x01;
}
status = cx231xx_dif_configure_C2HH_for_low_IF(dev, dev->active_mode,
func_mode, standard);
if (standard == DIF_USE_BASEBAND) { /* base band */
/* There is a different SRC_PHASE_INC value
for baseband vs. DIF */
status = vid_blk_write_word(dev, DIF_SRC_PHASE_INC, 0xDF7DF83);
status = vid_blk_read_word(dev, DIF_MISC_CTRL,
&dif_misc_ctrl_value);
dif_misc_ctrl_value |= FLD_DIF_DIF_BYPASS;
status = vid_blk_write_word(dev, DIF_MISC_CTRL,
dif_misc_ctrl_value);
} else if (standard & V4L2_STD_PAL_D) {
status = cx231xx_reg_mask_write(dev, VID_BLK_I2C_ADDRESS, 32,
DIF_PLL_CTRL, 0, 31, 0x6503bc0c);
status = cx231xx_reg_mask_write(dev, VID_BLK_I2C_ADDRESS, 32,
DIF_PLL_CTRL1, 0, 31, 0xbd038c85);
status = cx231xx_reg_mask_write(dev, VID_BLK_I2C_ADDRESS, 32,
DIF_PLL_CTRL2, 0, 31, 0x1db4640a);
status = cx231xx_reg_mask_write(dev, VID_BLK_I2C_ADDRESS, 32,
DIF_PLL_CTRL3, 0, 31, 0x00008800);
status = cx231xx_reg_mask_write(dev, VID_BLK_I2C_ADDRESS, 32,
DIF_AGC_IF_REF, 0, 31, 0x444C1380);
status = cx231xx_reg_mask_write(dev, VID_BLK_I2C_ADDRESS, 32,
DIF_AGC_CTRL_IF, 0, 31, 0xDA302600);
status = cx231xx_reg_mask_write(dev, VID_BLK_I2C_ADDRESS, 32,
DIF_AGC_CTRL_INT, 0, 31, 0xDA261700);
status = cx231xx_reg_mask_write(dev, VID_BLK_I2C_ADDRESS, 32,
DIF_AGC_CTRL_RF, 0, 31, 0xDA262600);
status = cx231xx_reg_mask_write(dev, VID_BLK_I2C_ADDRESS, 32,
DIF_AGC_IF_INT_CURRENT, 0, 31,
0x26001700);
status = cx231xx_reg_mask_write(dev, VID_BLK_I2C_ADDRESS, 32,
DIF_AGC_RF_CURRENT, 0, 31,
0x00002660);
status = cx231xx_reg_mask_write(dev, VID_BLK_I2C_ADDRESS, 32,
DIF_VIDEO_AGC_CTRL, 0, 31,
0x72500800);
status = cx231xx_reg_mask_write(dev, VID_BLK_I2C_ADDRESS, 32,
DIF_VID_AUD_OVERRIDE, 0, 31,
0x27000100);
status = cx231xx_reg_mask_write(dev, VID_BLK_I2C_ADDRESS, 32,
DIF_AV_SEP_CTRL, 0, 31, 0x3F3934EA);
status = cx231xx_reg_mask_write(dev, VID_BLK_I2C_ADDRESS, 32,
DIF_COMP_FLT_CTRL, 0, 31,
0x00000000);
status = cx231xx_reg_mask_write(dev, VID_BLK_I2C_ADDRESS, 32,
DIF_SRC_PHASE_INC, 0, 31,
0x1befbf06);
status = cx231xx_reg_mask_write(dev, VID_BLK_I2C_ADDRESS, 32,
DIF_SRC_GAIN_CONTROL, 0, 31,
0x000035e8);
status = cx231xx_reg_mask_write(dev, VID_BLK_I2C_ADDRESS, 32,
DIF_RPT_VARIANCE, 0, 31, 0x00000000);
/* Save the Spec Inversion value */
dif_misc_ctrl_value &= FLD_DIF_SPEC_INV;
dif_misc_ctrl_value |= 0x3a023F11;
} else if (standard & V4L2_STD_PAL_I) {
status = cx231xx_reg_mask_write(dev, VID_BLK_I2C_ADDRESS, 32,
DIF_PLL_CTRL, 0, 31, 0x6503bc0c);
status = cx231xx_reg_mask_write(dev, VID_BLK_I2C_ADDRESS, 32,
DIF_PLL_CTRL1, 0, 31, 0xbd038c85);
status = cx231xx_reg_mask_write(dev, VID_BLK_I2C_ADDRESS, 32,
DIF_PLL_CTRL2, 0, 31, 0x1db4640a);
status = cx231xx_reg_mask_write(dev, VID_BLK_I2C_ADDRESS, 32,
DIF_PLL_CTRL3, 0, 31, 0x00008800);
status = cx231xx_reg_mask_write(dev, VID_BLK_I2C_ADDRESS, 32,
DIF_AGC_IF_REF, 0, 31, 0x444C1380);
status = cx231xx_reg_mask_write(dev, VID_BLK_I2C_ADDRESS, 32,
DIF_AGC_CTRL_IF, 0, 31, 0xDA302600);
status = cx231xx_reg_mask_write(dev, VID_BLK_I2C_ADDRESS, 32,
DIF_AGC_CTRL_INT, 0, 31, 0xDA261700);
status = cx231xx_reg_mask_write(dev, VID_BLK_I2C_ADDRESS, 32,
DIF_AGC_CTRL_RF, 0, 31, 0xDA262600);
status = cx231xx_reg_mask_write(dev, VID_BLK_I2C_ADDRESS, 32,
DIF_AGC_IF_INT_CURRENT, 0, 31,
0x26001700);
status = cx231xx_reg_mask_write(dev, VID_BLK_I2C_ADDRESS, 32,
DIF_AGC_RF_CURRENT, 0, 31,
0x00002660);
status = cx231xx_reg_mask_write(dev, VID_BLK_I2C_ADDRESS, 32,
DIF_VIDEO_AGC_CTRL, 0, 31,
0x72500800);
status = cx231xx_reg_mask_write(dev, VID_BLK_I2C_ADDRESS, 32,
DIF_VID_AUD_OVERRIDE, 0, 31,
0x27000100);
status = cx231xx_reg_mask_write(dev, VID_BLK_I2C_ADDRESS, 32,
DIF_AV_SEP_CTRL, 0, 31, 0x5F39A934);
status = cx231xx_reg_mask_write(dev, VID_BLK_I2C_ADDRESS, 32,
DIF_COMP_FLT_CTRL, 0, 31,
0x00000000);
status = cx231xx_reg_mask_write(dev, VID_BLK_I2C_ADDRESS, 32,
DIF_SRC_PHASE_INC, 0, 31,
0x1befbf06);
status = cx231xx_reg_mask_write(dev, VID_BLK_I2C_ADDRESS, 32,
DIF_SRC_GAIN_CONTROL, 0, 31,
0x000035e8);
status = cx231xx_reg_mask_write(dev, VID_BLK_I2C_ADDRESS, 32,
DIF_RPT_VARIANCE, 0, 31, 0x00000000);
/* Save the Spec Inversion value */
dif_misc_ctrl_value &= FLD_DIF_SPEC_INV;
dif_misc_ctrl_value |= 0x3a033F11;
} else if (standard & V4L2_STD_PAL_M) {
/* improved Low Frequency Phase Noise */
status = vid_blk_write_word(dev, DIF_PLL_CTRL, 0xFF01FF0C);
status = vid_blk_write_word(dev, DIF_PLL_CTRL1, 0xbd038c85);
status = vid_blk_write_word(dev, DIF_PLL_CTRL2, 0x1db4640a);
status = vid_blk_write_word(dev, DIF_PLL_CTRL3, 0x00008800);
status = vid_blk_write_word(dev, DIF_AGC_IF_REF, 0x444C1380);
status = vid_blk_write_word(dev, DIF_AGC_IF_INT_CURRENT,
0x26001700);
status = vid_blk_write_word(dev, DIF_AGC_RF_CURRENT,
0x00002660);
status = vid_blk_write_word(dev, DIF_VIDEO_AGC_CTRL,
0x72500800);
status = vid_blk_write_word(dev, DIF_VID_AUD_OVERRIDE,
0x27000100);
status = vid_blk_write_word(dev, DIF_AV_SEP_CTRL, 0x012c405d);
status = vid_blk_write_word(dev, DIF_COMP_FLT_CTRL,
0x009f50c1);
status = vid_blk_write_word(dev, DIF_SRC_PHASE_INC,
0x1befbf06);
status = vid_blk_write_word(dev, DIF_SRC_GAIN_CONTROL,
0x000035e8);
status = vid_blk_write_word(dev, DIF_SOFT_RST_CTRL_REVB,
0x00000000);
/* Save the Spec Inversion value */
dif_misc_ctrl_value &= FLD_DIF_SPEC_INV;
dif_misc_ctrl_value |= 0x3A0A3F10;
} else if (standard & (V4L2_STD_PAL_N | V4L2_STD_PAL_Nc)) {
/* improved Low Frequency Phase Noise */
status = vid_blk_write_word(dev, DIF_PLL_CTRL, 0xFF01FF0C);
status = vid_blk_write_word(dev, DIF_PLL_CTRL1, 0xbd038c85);
status = vid_blk_write_word(dev, DIF_PLL_CTRL2, 0x1db4640a);
status = vid_blk_write_word(dev, DIF_PLL_CTRL3, 0x00008800);
status = vid_blk_write_word(dev, DIF_AGC_IF_REF, 0x444C1380);
status = vid_blk_write_word(dev, DIF_AGC_IF_INT_CURRENT,
0x26001700);
status = vid_blk_write_word(dev, DIF_AGC_RF_CURRENT,
0x00002660);
status = vid_blk_write_word(dev, DIF_VIDEO_AGC_CTRL,
0x72500800);
status = vid_blk_write_word(dev, DIF_VID_AUD_OVERRIDE,
0x27000100);
status = vid_blk_write_word(dev, DIF_AV_SEP_CTRL,
0x012c405d);
status = vid_blk_write_word(dev, DIF_COMP_FLT_CTRL,
0x009f50c1);
status = vid_blk_write_word(dev, DIF_SRC_PHASE_INC,
0x1befbf06);
status = vid_blk_write_word(dev, DIF_SRC_GAIN_CONTROL,
0x000035e8);
status = vid_blk_write_word(dev, DIF_SOFT_RST_CTRL_REVB,
0x00000000);
/* Save the Spec Inversion value */
dif_misc_ctrl_value &= FLD_DIF_SPEC_INV;
dif_misc_ctrl_value = 0x3A093F10;
} else if (standard &
(V4L2_STD_SECAM_B | V4L2_STD_SECAM_D | V4L2_STD_SECAM_G |
V4L2_STD_SECAM_K | V4L2_STD_SECAM_K1)) {
status = cx231xx_reg_mask_write(dev, VID_BLK_I2C_ADDRESS, 32,
DIF_PLL_CTRL, 0, 31, 0x6503bc0c);
status = cx231xx_reg_mask_write(dev, VID_BLK_I2C_ADDRESS, 32,
DIF_PLL_CTRL1, 0, 31, 0xbd038c85);
status = cx231xx_reg_mask_write(dev, VID_BLK_I2C_ADDRESS, 32,
DIF_PLL_CTRL2, 0, 31, 0x1db4640a);
status = cx231xx_reg_mask_write(dev, VID_BLK_I2C_ADDRESS, 32,
DIF_PLL_CTRL3, 0, 31, 0x00008800);
status = cx231xx_reg_mask_write(dev, VID_BLK_I2C_ADDRESS, 32,
DIF_AGC_IF_REF, 0, 31, 0x888C0380);
status = cx231xx_reg_mask_write(dev, VID_BLK_I2C_ADDRESS, 32,
DIF_AGC_CTRL_IF, 0, 31, 0xe0262600);
status = cx231xx_reg_mask_write(dev, VID_BLK_I2C_ADDRESS, 32,
DIF_AGC_CTRL_INT, 0, 31, 0xc2171700);
status = cx231xx_reg_mask_write(dev, VID_BLK_I2C_ADDRESS, 32,
DIF_AGC_CTRL_RF, 0, 31, 0xc2262600);
status = cx231xx_reg_mask_write(dev, VID_BLK_I2C_ADDRESS, 32,
DIF_AGC_IF_INT_CURRENT, 0, 31,
0x26001700);
status = cx231xx_reg_mask_write(dev, VID_BLK_I2C_ADDRESS, 32,
DIF_AGC_RF_CURRENT, 0, 31,
0x00002660);
status = cx231xx_reg_mask_write(dev, VID_BLK_I2C_ADDRESS, 32,
DIF_VID_AUD_OVERRIDE, 0, 31,
0x27000100);
status = cx231xx_reg_mask_write(dev, VID_BLK_I2C_ADDRESS, 32,
DIF_AV_SEP_CTRL, 0, 31, 0x3F3530ec);
status = cx231xx_reg_mask_write(dev, VID_BLK_I2C_ADDRESS, 32,
DIF_COMP_FLT_CTRL, 0, 31,
0x00000000);
status = cx231xx_reg_mask_write(dev, VID_BLK_I2C_ADDRESS, 32,
DIF_SRC_PHASE_INC, 0, 31,
0x1befbf06);
status = cx231xx_reg_mask_write(dev, VID_BLK_I2C_ADDRESS, 32,
DIF_SRC_GAIN_CONTROL, 0, 31,
0x000035e8);
status = cx231xx_reg_mask_write(dev, VID_BLK_I2C_ADDRESS, 32,
DIF_RPT_VARIANCE, 0, 31, 0x00000000);
status = cx231xx_reg_mask_write(dev, VID_BLK_I2C_ADDRESS, 32,
DIF_VIDEO_AGC_CTRL, 0, 31,
0xf4000000);
/* Save the Spec Inversion value */
dif_misc_ctrl_value &= FLD_DIF_SPEC_INV;
dif_misc_ctrl_value |= 0x3a023F11;
} else if (standard & (V4L2_STD_SECAM_L | V4L2_STD_SECAM_LC)) {
/* Is it SECAM_L1? */
status = cx231xx_reg_mask_write(dev, VID_BLK_I2C_ADDRESS, 32,
DIF_PLL_CTRL, 0, 31, 0x6503bc0c);
status = cx231xx_reg_mask_write(dev, VID_BLK_I2C_ADDRESS, 32,
DIF_PLL_CTRL1, 0, 31, 0xbd038c85);
status = cx231xx_reg_mask_write(dev, VID_BLK_I2C_ADDRESS, 32,
DIF_PLL_CTRL2, 0, 31, 0x1db4640a);
status = cx231xx_reg_mask_write(dev, VID_BLK_I2C_ADDRESS, 32,
DIF_PLL_CTRL3, 0, 31, 0x00008800);
status = cx231xx_reg_mask_write(dev, VID_BLK_I2C_ADDRESS, 32,
DIF_AGC_IF_REF, 0, 31, 0x888C0380);
status = cx231xx_reg_mask_write(dev, VID_BLK_I2C_ADDRESS, 32,
DIF_AGC_CTRL_IF, 0, 31, 0xe0262600);
status = cx231xx_reg_mask_write(dev, VID_BLK_I2C_ADDRESS, 32,
DIF_AGC_CTRL_INT, 0, 31, 0xc2171700);
status = cx231xx_reg_mask_write(dev, VID_BLK_I2C_ADDRESS, 32,
DIF_AGC_CTRL_RF, 0, 31, 0xc2262600);
status = cx231xx_reg_mask_write(dev, VID_BLK_I2C_ADDRESS, 32,
DIF_AGC_IF_INT_CURRENT, 0, 31,
0x26001700);
status = cx231xx_reg_mask_write(dev, VID_BLK_I2C_ADDRESS, 32,
DIF_AGC_RF_CURRENT, 0, 31,
0x00002660);
status = cx231xx_reg_mask_write(dev, VID_BLK_I2C_ADDRESS, 32,
DIF_VID_AUD_OVERRIDE, 0, 31,
0x27000100);
status = cx231xx_reg_mask_write(dev, VID_BLK_I2C_ADDRESS, 32,
DIF_AV_SEP_CTRL, 0, 31, 0x3F3530ec);
status = cx231xx_reg_mask_write(dev, VID_BLK_I2C_ADDRESS, 32,
DIF_COMP_FLT_CTRL, 0, 31,
0x00000000);
status = cx231xx_reg_mask_write(dev, VID_BLK_I2C_ADDRESS, 32,
DIF_SRC_PHASE_INC, 0, 31,
0x1befbf06);
status = cx231xx_reg_mask_write(dev, VID_BLK_I2C_ADDRESS, 32,
DIF_SRC_GAIN_CONTROL, 0, 31,
0x000035e8);
status = cx231xx_reg_mask_write(dev, VID_BLK_I2C_ADDRESS, 32,
DIF_RPT_VARIANCE, 0, 31, 0x00000000);
status = cx231xx_reg_mask_write(dev, VID_BLK_I2C_ADDRESS, 32,
DIF_VIDEO_AGC_CTRL, 0, 31,
0xf2560000);
/* Save the Spec Inversion value */
dif_misc_ctrl_value &= FLD_DIF_SPEC_INV;
dif_misc_ctrl_value |= 0x3a023F11;
} else if (standard & V4L2_STD_NTSC_M) {
/* V4L2_STD_NTSC_M (75 IRE Setup) Or
V4L2_STD_NTSC_M_JP (Japan, 0 IRE Setup) */
/* For NTSC the centre frequency of video coming out of
sidewinder is around 7.1MHz or 3.6MHz depending on the
spectral inversion. so for a non spectrally inverted channel
the pll freq word is 0x03420c49
*/
status = vid_blk_write_word(dev, DIF_PLL_CTRL, 0x6503BC0C);
status = vid_blk_write_word(dev, DIF_PLL_CTRL1, 0xBD038C85);
status = vid_blk_write_word(dev, DIF_PLL_CTRL2, 0x1DB4640A);
status = vid_blk_write_word(dev, DIF_PLL_CTRL3, 0x00008800);
status = vid_blk_write_word(dev, DIF_AGC_IF_REF, 0x444C0380);
status = vid_blk_write_word(dev, DIF_AGC_IF_INT_CURRENT,
0x26001700);
status = vid_blk_write_word(dev, DIF_AGC_RF_CURRENT,
0x00002660);
status = vid_blk_write_word(dev, DIF_VIDEO_AGC_CTRL,
0x04000800);
status = vid_blk_write_word(dev, DIF_VID_AUD_OVERRIDE,
0x27000100);
status = vid_blk_write_word(dev, DIF_AV_SEP_CTRL, 0x01296e1f);
status = vid_blk_write_word(dev, DIF_COMP_FLT_CTRL,
0x009f50c1);
status = vid_blk_write_word(dev, DIF_SRC_PHASE_INC,
0x1befbf06);
status = vid_blk_write_word(dev, DIF_SRC_GAIN_CONTROL,
0x000035e8);
status = vid_blk_write_word(dev, DIF_AGC_CTRL_IF, 0xC2262600);
status = vid_blk_write_word(dev, DIF_AGC_CTRL_INT,
0xC2262600);
status = vid_blk_write_word(dev, DIF_AGC_CTRL_RF, 0xC2262600);
/* Save the Spec Inversion value */
dif_misc_ctrl_value &= FLD_DIF_SPEC_INV;
dif_misc_ctrl_value |= 0x3a003F10;
} else {
/* default PAL BG */
status = cx231xx_reg_mask_write(dev, VID_BLK_I2C_ADDRESS, 32,
DIF_PLL_CTRL, 0, 31, 0x6503bc0c);
status = cx231xx_reg_mask_write(dev, VID_BLK_I2C_ADDRESS, 32,
DIF_PLL_CTRL1, 0, 31, 0xbd038c85);
status = cx231xx_reg_mask_write(dev, VID_BLK_I2C_ADDRESS, 32,
DIF_PLL_CTRL2, 0, 31, 0x1db4640a);
status = cx231xx_reg_mask_write(dev, VID_BLK_I2C_ADDRESS, 32,
DIF_PLL_CTRL3, 0, 31, 0x00008800);
status = cx231xx_reg_mask_write(dev, VID_BLK_I2C_ADDRESS, 32,
DIF_AGC_IF_REF, 0, 31, 0x444C1380);
status = cx231xx_reg_mask_write(dev, VID_BLK_I2C_ADDRESS, 32,
DIF_AGC_CTRL_IF, 0, 31, 0xDA302600);
status = cx231xx_reg_mask_write(dev, VID_BLK_I2C_ADDRESS, 32,
DIF_AGC_CTRL_INT, 0, 31, 0xDA261700);
status = cx231xx_reg_mask_write(dev, VID_BLK_I2C_ADDRESS, 32,
DIF_AGC_CTRL_RF, 0, 31, 0xDA262600);
status = cx231xx_reg_mask_write(dev, VID_BLK_I2C_ADDRESS, 32,
DIF_AGC_IF_INT_CURRENT, 0, 31,
0x26001700);
status = cx231xx_reg_mask_write(dev, VID_BLK_I2C_ADDRESS, 32,
DIF_AGC_RF_CURRENT, 0, 31,
0x00002660);
status = cx231xx_reg_mask_write(dev, VID_BLK_I2C_ADDRESS, 32,
DIF_VIDEO_AGC_CTRL, 0, 31,
0x72500800);
status = cx231xx_reg_mask_write(dev, VID_BLK_I2C_ADDRESS, 32,
DIF_VID_AUD_OVERRIDE, 0, 31,
0x27000100);
status = cx231xx_reg_mask_write(dev, VID_BLK_I2C_ADDRESS, 32,
DIF_AV_SEP_CTRL, 0, 31, 0x3F3530EC);
status = cx231xx_reg_mask_write(dev, VID_BLK_I2C_ADDRESS, 32,
DIF_COMP_FLT_CTRL, 0, 31,
0x00A653A8);
status = cx231xx_reg_mask_write(dev, VID_BLK_I2C_ADDRESS, 32,
DIF_SRC_PHASE_INC, 0, 31,
0x1befbf06);
status = cx231xx_reg_mask_write(dev, VID_BLK_I2C_ADDRESS, 32,
DIF_SRC_GAIN_CONTROL, 0, 31,
0x000035e8);
status = cx231xx_reg_mask_write(dev, VID_BLK_I2C_ADDRESS, 32,
DIF_RPT_VARIANCE, 0, 31, 0x00000000);
/* Save the Spec Inversion value */
dif_misc_ctrl_value &= FLD_DIF_SPEC_INV;
dif_misc_ctrl_value |= 0x3a013F11;
}
/* The AGC values should be the same for all standards,
AUD_SRC_SEL[19] should always be disabled */
dif_misc_ctrl_value &= ~FLD_DIF_AUD_SRC_SEL;
/* It is still possible to get Set Standard calls even when we
are in FM mode.
This is done to override the value for FM. */
if (dev->active_mode == V4L2_TUNER_RADIO)
dif_misc_ctrl_value = 0x7a080000;
/* Write the calculated value for misc ontrol register */
status = vid_blk_write_word(dev, DIF_MISC_CTRL, dif_misc_ctrl_value);
return status;
}
int cx231xx_tuner_pre_channel_change(struct cx231xx *dev)
{
int status = 0;
u32 dwval;
/* Set the RF and IF k_agc values to 3 */
status = vid_blk_read_word(dev, DIF_AGC_IF_REF, &dwval);
dwval &= ~(FLD_DIF_K_AGC_RF | FLD_DIF_K_AGC_IF);
dwval |= 0x33000000;
status = vid_blk_write_word(dev, DIF_AGC_IF_REF, dwval);
return status;
}
int cx231xx_tuner_post_channel_change(struct cx231xx *dev)
{
int status = 0;
u32 dwval;
/* Set the RF and IF k_agc values to 4 for PAL/NTSC and 8 for
* SECAM L/B/D standards */
status = vid_blk_read_word(dev, DIF_AGC_IF_REF, &dwval);
dwval &= ~(FLD_DIF_K_AGC_RF | FLD_DIF_K_AGC_IF);
if (dev->norm & (V4L2_STD_SECAM_L | V4L2_STD_SECAM_B |
V4L2_STD_SECAM_D))
dwval |= 0x88000000;
else
dwval |= 0x44000000;
status = vid_blk_write_word(dev, DIF_AGC_IF_REF, dwval);
return status;
}
/******************************************************************************
* I 2 S - B L O C K C O N T R O L functions *
******************************************************************************/
int cx231xx_i2s_blk_initialize(struct cx231xx *dev)
{
int status = 0;
u32 value;
status = cx231xx_read_i2c_data(dev, I2S_BLK_DEVICE_ADDRESS,
CH_PWR_CTRL1, 1, &value, 1);
/* enables clock to delta-sigma and decimation filter */
value |= 0x80;
status = cx231xx_write_i2c_data(dev, I2S_BLK_DEVICE_ADDRESS,
CH_PWR_CTRL1, 1, value, 1);
/* power up all channel */
status = cx231xx_write_i2c_data(dev, I2S_BLK_DEVICE_ADDRESS,
CH_PWR_CTRL2, 1, 0x00, 1);
return status;
}
int cx231xx_i2s_blk_update_power_control(struct cx231xx *dev,
enum AV_MODE avmode)
{
int status = 0;
u32 value = 0;
if (avmode != POLARIS_AVMODE_ENXTERNAL_AV) {
status = cx231xx_read_i2c_data(dev, I2S_BLK_DEVICE_ADDRESS,
CH_PWR_CTRL2, 1, &value, 1);
value |= 0xfe;
status = cx231xx_write_i2c_data(dev, I2S_BLK_DEVICE_ADDRESS,
CH_PWR_CTRL2, 1, value, 1);
} else {
status = cx231xx_write_i2c_data(dev, I2S_BLK_DEVICE_ADDRESS,
CH_PWR_CTRL2, 1, 0x00, 1);
}
return status;
}
/* set i2s_blk for audio input types */
int cx231xx_i2s_blk_set_audio_input(struct cx231xx *dev, u8 audio_input)
{
int status = 0;
switch (audio_input) {
case CX231XX_AMUX_LINE_IN:
status = cx231xx_write_i2c_data(dev, I2S_BLK_DEVICE_ADDRESS,
CH_PWR_CTRL2, 1, 0x00, 1);
status = cx231xx_write_i2c_data(dev, I2S_BLK_DEVICE_ADDRESS,
CH_PWR_CTRL1, 1, 0x80, 1);
break;
case CX231XX_AMUX_VIDEO:
default:
break;
}
dev->ctl_ainput = audio_input;
return status;
}
/******************************************************************************
* P O W E R C O N T R O L functions *
******************************************************************************/
int cx231xx_set_power_mode(struct cx231xx *dev, enum AV_MODE mode)
{
u8 value[4] = { 0, 0, 0, 0 };
u32 tmp = 0;
int status = 0;
if (dev->power_mode != mode)
dev->power_mode = mode;
else {
cx231xx_info(" setPowerMode::mode = %d, No Change req.\n",
mode);
return 0;
}
cx231xx_info(" setPowerMode::mode = %d\n", mode);
status = cx231xx_read_ctrl_reg(dev, VRT_GET_REGISTER, PWR_CTL_EN, value,
4);
if (status < 0)
return status;
tmp = *((u32 *) value);
switch (mode) {
case POLARIS_AVMODE_ENXTERNAL_AV:
tmp &= (~PWR_MODE_MASK);
tmp |= PWR_AV_EN;
value[0] = (u8) tmp;
value[1] = (u8) (tmp >> 8);
value[2] = (u8) (tmp >> 16);
value[3] = (u8) (tmp >> 24);
status = cx231xx_write_ctrl_reg(dev, VRT_SET_REGISTER,
PWR_CTL_EN, value, 4);
msleep(PWR_SLEEP_INTERVAL);
tmp |= PWR_ISO_EN;
value[0] = (u8) tmp;
value[1] = (u8) (tmp >> 8);
value[2] = (u8) (tmp >> 16);
value[3] = (u8) (tmp >> 24);
status =
cx231xx_write_ctrl_reg(dev, VRT_SET_REGISTER, PWR_CTL_EN,
value, 4);
msleep(PWR_SLEEP_INTERVAL);
tmp |= POLARIS_AVMODE_ENXTERNAL_AV;
value[0] = (u8) tmp;
value[1] = (u8) (tmp >> 8);
value[2] = (u8) (tmp >> 16);
value[3] = (u8) (tmp >> 24);
status = cx231xx_write_ctrl_reg(dev, VRT_SET_REGISTER,
PWR_CTL_EN, value, 4);
/* reset state of xceive tuner */
dev->xc_fw_load_done = 0;
break;
case POLARIS_AVMODE_ANALOGT_TV:
tmp &= (~PWR_DEMOD_EN);
tmp |= (I2C_DEMOD_EN);
value[0] = (u8) tmp;
value[1] = (u8) (tmp >> 8);
value[2] = (u8) (tmp >> 16);
value[3] = (u8) (tmp >> 24);
status = cx231xx_write_ctrl_reg(dev, VRT_SET_REGISTER,
PWR_CTL_EN, value, 4);
msleep(PWR_SLEEP_INTERVAL);
if (!(tmp & PWR_TUNER_EN)) {
tmp |= (PWR_TUNER_EN);
value[0] = (u8) tmp;
value[1] = (u8) (tmp >> 8);
value[2] = (u8) (tmp >> 16);
value[3] = (u8) (tmp >> 24);
status = cx231xx_write_ctrl_reg(dev, VRT_SET_REGISTER,
PWR_CTL_EN, value, 4);
msleep(PWR_SLEEP_INTERVAL);
}
if (!(tmp & PWR_AV_EN)) {
tmp |= PWR_AV_EN;
value[0] = (u8) tmp;
value[1] = (u8) (tmp >> 8);
value[2] = (u8) (tmp >> 16);
value[3] = (u8) (tmp >> 24);
status = cx231xx_write_ctrl_reg(dev, VRT_SET_REGISTER,
PWR_CTL_EN, value, 4);
msleep(PWR_SLEEP_INTERVAL);
}
if (!(tmp & PWR_ISO_EN)) {
tmp |= PWR_ISO_EN;
value[0] = (u8) tmp;
value[1] = (u8) (tmp >> 8);
value[2] = (u8) (tmp >> 16);
value[3] = (u8) (tmp >> 24);
status = cx231xx_write_ctrl_reg(dev, VRT_SET_REGISTER,
PWR_CTL_EN, value, 4);
msleep(PWR_SLEEP_INTERVAL);
}
if (!(tmp & POLARIS_AVMODE_ANALOGT_TV)) {
tmp |= POLARIS_AVMODE_ANALOGT_TV;
value[0] = (u8) tmp;
value[1] = (u8) (tmp >> 8);
value[2] = (u8) (tmp >> 16);
value[3] = (u8) (tmp >> 24);
status = cx231xx_write_ctrl_reg(dev, VRT_SET_REGISTER,
PWR_CTL_EN, value, 4);
msleep(PWR_SLEEP_INTERVAL);
}
if ((dev->model == CX231XX_BOARD_CNXT_RDE_250) ||
(dev->model == CX231XX_BOARD_CNXT_RDU_250)) {
/* tuner path to channel 1 from port 3 */
cx231xx_enable_i2c_for_tuner(dev, I2C_3);
if (dev->cx231xx_reset_analog_tuner)
dev->cx231xx_reset_analog_tuner(dev);
}
break;
case POLARIS_AVMODE_DIGITAL:
if (!(tmp & PWR_TUNER_EN)) {
tmp |= (PWR_TUNER_EN);
value[0] = (u8) tmp;
value[1] = (u8) (tmp >> 8);
value[2] = (u8) (tmp >> 16);
value[3] = (u8) (tmp >> 24);
status = cx231xx_write_ctrl_reg(dev, VRT_SET_REGISTER,
PWR_CTL_EN, value, 4);
msleep(PWR_SLEEP_INTERVAL);
}
if (!(tmp & PWR_AV_EN)) {
tmp |= PWR_AV_EN;
value[0] = (u8) tmp;
value[1] = (u8) (tmp >> 8);
value[2] = (u8) (tmp >> 16);
value[3] = (u8) (tmp >> 24);
status = cx231xx_write_ctrl_reg(dev, VRT_SET_REGISTER,
PWR_CTL_EN, value, 4);
msleep(PWR_SLEEP_INTERVAL);
}
if (!(tmp & PWR_ISO_EN)) {
tmp |= PWR_ISO_EN;
value[0] = (u8) tmp;
value[1] = (u8) (tmp >> 8);
value[2] = (u8) (tmp >> 16);
value[3] = (u8) (tmp >> 24);
status = cx231xx_write_ctrl_reg(dev, VRT_SET_REGISTER,
PWR_CTL_EN, value, 4);
msleep(PWR_SLEEP_INTERVAL);
}
tmp |= POLARIS_AVMODE_DIGITAL | I2C_DEMOD_EN;
value[0] = (u8) tmp;
value[1] = (u8) (tmp >> 8);
value[2] = (u8) (tmp >> 16);
value[3] = (u8) (tmp >> 24);
status = cx231xx_write_ctrl_reg(dev, VRT_SET_REGISTER,
PWR_CTL_EN, value, 4);
msleep(PWR_SLEEP_INTERVAL);
if (!(tmp & PWR_DEMOD_EN)) {
tmp |= PWR_DEMOD_EN;
value[0] = (u8) tmp;
value[1] = (u8) (tmp >> 8);
value[2] = (u8) (tmp >> 16);
value[3] = (u8) (tmp >> 24);
status = cx231xx_write_ctrl_reg(dev, VRT_SET_REGISTER,
PWR_CTL_EN, value, 4);
msleep(PWR_SLEEP_INTERVAL);
}
if ((dev->model == CX231XX_BOARD_CNXT_RDE_250) ||
(dev->model == CX231XX_BOARD_CNXT_RDU_250)) {
/* tuner path to channel 1 from port 3 */
cx231xx_enable_i2c_for_tuner(dev, I2C_3);
if (dev->cx231xx_reset_analog_tuner)
dev->cx231xx_reset_analog_tuner(dev);
}
break;
default:
break;
}
msleep(PWR_SLEEP_INTERVAL);
/* For power saving, only enable Pwr_resetout_n
when digital TV is selected. */
if (mode == POLARIS_AVMODE_DIGITAL) {
tmp |= PWR_RESETOUT_EN;
value[0] = (u8) tmp;
value[1] = (u8) (tmp >> 8);
value[2] = (u8) (tmp >> 16);
value[3] = (u8) (tmp >> 24);
status = cx231xx_write_ctrl_reg(dev, VRT_SET_REGISTER,
PWR_CTL_EN, value, 4);
msleep(PWR_SLEEP_INTERVAL);
}
/* update power control for afe */
status = cx231xx_afe_update_power_control(dev, mode);
/* update power control for i2s_blk */
status = cx231xx_i2s_blk_update_power_control(dev, mode);
status = cx231xx_read_ctrl_reg(dev, VRT_GET_REGISTER, PWR_CTL_EN, value,
4);
cx231xx_info(" The data of PWR_CTL_EN register 0x74"
"=0x%0x,0x%0x,0x%0x,0x%0x\n",
value[0], value[1], value[2], value[3]);
return status;
}
int cx231xx_power_suspend(struct cx231xx *dev)
{
u8 value[4] = { 0, 0, 0, 0 };
u32 tmp = 0;
int status = 0;
status = cx231xx_read_ctrl_reg(dev, VRT_GET_REGISTER, PWR_CTL_EN,
value, 4);
if (status > 0)
return status;
tmp = *((u32 *) value);
tmp &= (~PWR_MODE_MASK);
value[0] = (u8) tmp;
value[1] = (u8) (tmp >> 8);
value[2] = (u8) (tmp >> 16);
value[3] = (u8) (tmp >> 24);
status = cx231xx_write_ctrl_reg(dev, VRT_SET_REGISTER, PWR_CTL_EN,
value, 4);
return status;
}
/******************************************************************************
* S T R E A M C O N T R O L functions *
******************************************************************************/
int cx231xx_start_stream(struct cx231xx *dev, u32 ep_mask)
{
u8 value[4] = { 0x0, 0x0, 0x0, 0x0 };
u32 tmp = 0;
int status = 0;
cx231xx_info("cx231xx_start_stream():: ep_mask = %x\n", ep_mask);
status = cx231xx_read_ctrl_reg(dev, VRT_GET_REGISTER, EP_MODE_SET,
value, 4);
if (status < 0)
return status;
tmp = *((u32 *) value);
tmp |= ep_mask;
value[0] = (u8) tmp;
value[1] = (u8) (tmp >> 8);
value[2] = (u8) (tmp >> 16);
value[3] = (u8) (tmp >> 24);
status = cx231xx_write_ctrl_reg(dev, VRT_SET_REGISTER, EP_MODE_SET,
value, 4);
return status;
}
int cx231xx_stop_stream(struct cx231xx *dev, u32 ep_mask)
{
u8 value[4] = { 0x0, 0x0, 0x0, 0x0 };
u32 tmp = 0;
int status = 0;
cx231xx_info("cx231xx_stop_stream():: ep_mask = %x\n", ep_mask);
status =
cx231xx_read_ctrl_reg(dev, VRT_GET_REGISTER, EP_MODE_SET, value, 4);
if (status < 0)
return status;
tmp = *((u32 *) value);
tmp &= (~ep_mask);
value[0] = (u8) tmp;
value[1] = (u8) (tmp >> 8);
value[2] = (u8) (tmp >> 16);
value[3] = (u8) (tmp >> 24);
status = cx231xx_write_ctrl_reg(dev, VRT_SET_REGISTER, EP_MODE_SET,
value, 4);
return status;
}
int cx231xx_initialize_stream_xfer(struct cx231xx *dev, u32 media_type)
{
int status = 0;
if (dev->udev->speed == USB_SPEED_HIGH) {
switch (media_type) {
case 81: /* audio */
cx231xx_info("%s: Audio enter HANC\n", __func__);
status =
cx231xx_mode_register(dev, TS_MODE_REG, 0x9300);
break;
case 2: /* vbi */
cx231xx_info("%s: set vanc registers\n", __func__);
status = cx231xx_mode_register(dev, TS_MODE_REG, 0x300);
break;
case 3: /* sliced cc */
cx231xx_info("%s: set hanc registers\n", __func__);
status =
cx231xx_mode_register(dev, TS_MODE_REG, 0x1300);
break;
case 0: /* video */
cx231xx_info("%s: set video registers\n", __func__);
status = cx231xx_mode_register(dev, TS_MODE_REG, 0x100);
break;
case 4: /* ts1 */
cx231xx_info("%s: set ts1 registers\n", __func__);
status = cx231xx_mode_register(dev, TS_MODE_REG, 0x101);
status = cx231xx_mode_register(dev, TS1_CFG_REG, 0x400);
break;
case 6: /* ts1 parallel mode */
cx231xx_info("%s: set ts1 parrallel mode registers\n",
__func__);
status = cx231xx_mode_register(dev, TS_MODE_REG, 0x100);
status = cx231xx_mode_register(dev, TS1_CFG_REG, 0x400);
break;
}
} else {
status = cx231xx_mode_register(dev, TS_MODE_REG, 0x101);
}
return status;
}
int cx231xx_capture_start(struct cx231xx *dev, int start, u8 media_type)
{
int rc = -1;
u32 ep_mask = -1;
struct pcb_config *pcb_config;
/* get EP for media type */
pcb_config = (struct pcb_config *)&dev->current_pcb_config;
if (pcb_config->config_num == 1) {
switch (media_type) {
case 0: /* Video */
ep_mask = ENABLE_EP4; /* ep4 [00:1000] */
break;
case 1: /* Audio */
ep_mask = ENABLE_EP3; /* ep3 [00:0100] */
break;
case 2: /* Vbi */
ep_mask = ENABLE_EP5; /* ep5 [01:0000] */
break;
case 3: /* Sliced_cc */
ep_mask = ENABLE_EP6; /* ep6 [10:0000] */
break;
case 4: /* ts1 */
case 6: /* ts1 parallel mode */
ep_mask = ENABLE_EP1; /* ep1 [00:0001] */
break;
case 5: /* ts2 */
ep_mask = ENABLE_EP2; /* ep2 [00:0010] */
break;
}
} else if (pcb_config->config_num > 1) {
switch (media_type) {
case 0: /* Video */
ep_mask = ENABLE_EP4; /* ep4 [00:1000] */
break;
case 1: /* Audio */
ep_mask = ENABLE_EP3; /* ep3 [00:0100] */
break;
case 2: /* Vbi */
ep_mask = ENABLE_EP5; /* ep5 [01:0000] */
break;
case 3: /* Sliced_cc */
ep_mask = ENABLE_EP6; /* ep6 [10:0000] */
break;
case 4: /* ts1 */
case 6: /* ts1 parallel mode */
ep_mask = ENABLE_EP1; /* ep1 [00:0001] */
break;
case 5: /* ts2 */
ep_mask = ENABLE_EP2; /* ep2 [00:0010] */
break;
}
}
if (start) {
rc = cx231xx_initialize_stream_xfer(dev, media_type);
if (rc < 0)
return rc;
/* enable video capture */
if (ep_mask > 0)
rc = cx231xx_start_stream(dev, ep_mask);
} else {
/* disable video capture */
if (ep_mask > 0)
rc = cx231xx_stop_stream(dev, ep_mask);
}
if (dev->mode == CX231XX_ANALOG_MODE)
;/* do any in Analog mode */
else
;/* do any in digital mode */
return rc;
}
EXPORT_SYMBOL_GPL(cx231xx_capture_start);
/*****************************************************************************
* G P I O B I T control functions *
******************************************************************************/
int cx231xx_set_gpio_bit(struct cx231xx *dev, u32 gpio_bit, u8 * gpio_val)
{
int status = 0;
status = cx231xx_send_gpio_cmd(dev, gpio_bit, gpio_val, 4, 0, 0);
return status;
}
int cx231xx_get_gpio_bit(struct cx231xx *dev, u32 gpio_bit, u8 * gpio_val)
{
int status = 0;
status = cx231xx_send_gpio_cmd(dev, gpio_bit, gpio_val, 4, 0, 1);
return status;
}
/*
* cx231xx_set_gpio_direction
* Sets the direction of the GPIO pin to input or output
*
* Parameters :
* pin_number : The GPIO Pin number to program the direction for
* from 0 to 31
* pin_value : The Direction of the GPIO Pin under reference.
* 0 = Input direction
* 1 = Output direction
*/
int cx231xx_set_gpio_direction(struct cx231xx *dev,
int pin_number, int pin_value)
{
int status = 0;
u32 value = 0;
/* Check for valid pin_number - if 32 , bail out */
if (pin_number >= 32)
return -EINVAL;
/* input */
if (pin_value == 0)
value = dev->gpio_dir & (~(1 << pin_number)); /* clear */
else
value = dev->gpio_dir | (1 << pin_number);
status = cx231xx_set_gpio_bit(dev, value, (u8 *) &dev->gpio_val);
/* cache the value for future */
dev->gpio_dir = value;
return status;
}
/*
* cx231xx_set_gpio_value
* Sets the value of the GPIO pin to Logic high or low. The Pin under
* reference should ALREADY BE SET IN OUTPUT MODE !!!!!!!!!
*
* Parameters :
* pin_number : The GPIO Pin number to program the direction for
* pin_value : The value of the GPIO Pin under reference.
* 0 = set it to 0
* 1 = set it to 1
*/
int cx231xx_set_gpio_value(struct cx231xx *dev, int pin_number, int pin_value)
{
int status = 0;
u32 value = 0;
/* Check for valid pin_number - if 0xFF , bail out */
if (pin_number >= 32)
return -EINVAL;
/* first do a sanity check - if the Pin is not output, make it output */
if ((dev->gpio_dir & (1 << pin_number)) == 0x00) {
/* It was in input mode */
value = dev->gpio_dir | (1 << pin_number);
dev->gpio_dir = value;
status = cx231xx_set_gpio_bit(dev, dev->gpio_dir,
(u8 *) &dev->gpio_val);
value = 0;
}
if (pin_value == 0)
value = dev->gpio_val & (~(1 << pin_number));
else
value = dev->gpio_val | (1 << pin_number);
/* store the value */
dev->gpio_val = value;
/* toggle bit0 of GP_IO */
status = cx231xx_set_gpio_bit(dev, dev->gpio_dir, (u8 *)&dev->gpio_val);
return status;
}
/*****************************************************************************
* G P I O I2C related functions *
******************************************************************************/
int cx231xx_gpio_i2c_start(struct cx231xx *dev)
{
int status = 0;
/* set SCL to output 1 ; set SDA to output 1 */
dev->gpio_dir |= 1 << dev->board.tuner_scl_gpio;
dev->gpio_dir |= 1 << dev->board.tuner_sda_gpio;
dev->gpio_val |= 1 << dev->board.tuner_scl_gpio;
dev->gpio_val |= 1 << dev->board.tuner_sda_gpio;
status = cx231xx_set_gpio_bit(dev, dev->gpio_dir, (u8 *)&dev->gpio_val);
if (status < 0)
return -EINVAL;
/* set SCL to output 1; set SDA to output 0 */
dev->gpio_val |= 1 << dev->board.tuner_scl_gpio;
dev->gpio_val &= ~(1 << dev->board.tuner_sda_gpio);
status = cx231xx_set_gpio_bit(dev, dev->gpio_dir, (u8 *)&dev->gpio_val);
if (status < 0)
return -EINVAL;
/* set SCL to output 0; set SDA to output 0 */
dev->gpio_val &= ~(1 << dev->board.tuner_scl_gpio);
dev->gpio_val &= ~(1 << dev->board.tuner_sda_gpio);
status = cx231xx_set_gpio_bit(dev, dev->gpio_dir, (u8 *)&dev->gpio_val);
if (status < 0)
return -EINVAL;
return status;
}
int cx231xx_gpio_i2c_end(struct cx231xx *dev)
{
int status = 0;
/* set SCL to output 0; set SDA to output 0 */
dev->gpio_dir |= 1 << dev->board.tuner_scl_gpio;
dev->gpio_dir |= 1 << dev->board.tuner_sda_gpio;
dev->gpio_val &= ~(1 << dev->board.tuner_scl_gpio);
dev->gpio_val &= ~(1 << dev->board.tuner_sda_gpio);
status = cx231xx_set_gpio_bit(dev, dev->gpio_dir, (u8 *)&dev->gpio_val);
if (status < 0)
return -EINVAL;
/* set SCL to output 1; set SDA to output 0 */
dev->gpio_val |= 1 << dev->board.tuner_scl_gpio;
dev->gpio_val &= ~(1 << dev->board.tuner_sda_gpio);
status = cx231xx_set_gpio_bit(dev, dev->gpio_dir, (u8 *)&dev->gpio_val);
if (status < 0)
return -EINVAL;
/* set SCL to input ,release SCL cable control
set SDA to input ,release SDA cable control */
dev->gpio_dir &= ~(1 << dev->board.tuner_scl_gpio);
dev->gpio_dir &= ~(1 << dev->board.tuner_sda_gpio);
status =
cx231xx_set_gpio_bit(dev, dev->gpio_dir, (u8 *)&dev->gpio_val);
if (status < 0)
return -EINVAL;
return status;
}
int cx231xx_gpio_i2c_write_byte(struct cx231xx *dev, u8 data)
{
int status = 0;
u8 i;
/* set SCL to output ; set SDA to output */
dev->gpio_dir |= 1 << dev->board.tuner_scl_gpio;
dev->gpio_dir |= 1 << dev->board.tuner_sda_gpio;
for (i = 0; i < 8; i++) {
if (((data << i) & 0x80) == 0) {
/* set SCL to output 0; set SDA to output 0 */
dev->gpio_val &= ~(1 << dev->board.tuner_scl_gpio);
dev->gpio_val &= ~(1 << dev->board.tuner_sda_gpio);
status = cx231xx_set_gpio_bit(dev, dev->gpio_dir,
(u8 *)&dev->gpio_val);
/* set SCL to output 1; set SDA to output 0 */
dev->gpio_val |= 1 << dev->board.tuner_scl_gpio;
status = cx231xx_set_gpio_bit(dev, dev->gpio_dir,
(u8 *)&dev->gpio_val);
/* set SCL to output 0; set SDA to output 0 */
dev->gpio_val &= ~(1 << dev->board.tuner_scl_gpio);
status = cx231xx_set_gpio_bit(dev, dev->gpio_dir,
(u8 *)&dev->gpio_val);
} else {
/* set SCL to output 0; set SDA to output 1 */
dev->gpio_val &= ~(1 << dev->board.tuner_scl_gpio);
dev->gpio_val |= 1 << dev->board.tuner_sda_gpio;
status = cx231xx_set_gpio_bit(dev, dev->gpio_dir,
(u8 *)&dev->gpio_val);
/* set SCL to output 1; set SDA to output 1 */
dev->gpio_val |= 1 << dev->board.tuner_scl_gpio;
status = cx231xx_set_gpio_bit(dev, dev->gpio_dir,
(u8 *)&dev->gpio_val);
/* set SCL to output 0; set SDA to output 1 */
dev->gpio_val &= ~(1 << dev->board.tuner_scl_gpio);
status = cx231xx_set_gpio_bit(dev, dev->gpio_dir,
(u8 *)&dev->gpio_val);
}
}
return status;
}
int cx231xx_gpio_i2c_read_byte(struct cx231xx *dev, u8 * buf)
{
u8 value = 0;
int status = 0;
u32 gpio_logic_value = 0;
u8 i;
/* read byte */
for (i = 0; i < 8; i++) { /* send write I2c addr */
/* set SCL to output 0; set SDA to input */
dev->gpio_val &= ~(1 << dev->board.tuner_scl_gpio);
status = cx231xx_set_gpio_bit(dev, dev->gpio_dir,
(u8 *)&dev->gpio_val);
/* set SCL to output 1; set SDA to input */
dev->gpio_val |= 1 << dev->board.tuner_scl_gpio;
status = cx231xx_set_gpio_bit(dev, dev->gpio_dir,
(u8 *)&dev->gpio_val);
/* get SDA data bit */
gpio_logic_value = dev->gpio_val;
status = cx231xx_get_gpio_bit(dev, dev->gpio_dir,
(u8 *)&dev->gpio_val);
if ((dev->gpio_val & (1 << dev->board.tuner_sda_gpio)) != 0)
value |= (1 << (8 - i - 1));
dev->gpio_val = gpio_logic_value;
}
/* set SCL to output 0,finish the read latest SCL signal.
!!!set SDA to input, never to modify SDA direction at
the same times */
dev->gpio_val &= ~(1 << dev->board.tuner_scl_gpio);
status = cx231xx_set_gpio_bit(dev, dev->gpio_dir, (u8 *)&dev->gpio_val);
/* store the value */
*buf = value & 0xff;
return status;
}
int cx231xx_gpio_i2c_read_ack(struct cx231xx *dev)
{
int status = 0;
u32 gpio_logic_value = 0;
int nCnt = 10;
int nInit = nCnt;
/* clock stretch; set SCL to input; set SDA to input;
get SCL value till SCL = 1 */
dev->gpio_dir &= ~(1 << dev->board.tuner_sda_gpio);
dev->gpio_dir &= ~(1 << dev->board.tuner_scl_gpio);
gpio_logic_value = dev->gpio_val;
status = cx231xx_set_gpio_bit(dev, dev->gpio_dir, (u8 *)&dev->gpio_val);
do {
msleep(2);
status = cx231xx_get_gpio_bit(dev, dev->gpio_dir,
(u8 *)&dev->gpio_val);
nCnt--;
} while (((dev->gpio_val &
(1 << dev->board.tuner_scl_gpio)) == 0) &&
(nCnt > 0));
if (nCnt == 0)
cx231xx_info("No ACK after %d msec -GPIO I2C failed!",
nInit * 10);
/* readAck
throuth clock stretch ,slave has given a SCL signal,
so the SDA data can be directly read. */
status = cx231xx_get_gpio_bit(dev, dev->gpio_dir, (u8 *)&dev->gpio_val);
if ((dev->gpio_val & 1 << dev->board.tuner_sda_gpio) == 0) {
dev->gpio_val = gpio_logic_value;
dev->gpio_val &= ~(1 << dev->board.tuner_sda_gpio);
status = 0;
} else {
dev->gpio_val = gpio_logic_value;
dev->gpio_val |= (1 << dev->board.tuner_sda_gpio);
}
/* read SDA end, set the SCL to output 0, after this operation,
SDA direction can be changed. */
dev->gpio_val = gpio_logic_value;
dev->gpio_dir |= (1 << dev->board.tuner_scl_gpio);
dev->gpio_val &= ~(1 << dev->board.tuner_scl_gpio);
status = cx231xx_set_gpio_bit(dev, dev->gpio_dir, (u8 *)&dev->gpio_val);
return status;
}
int cx231xx_gpio_i2c_write_ack(struct cx231xx *dev)
{
int status = 0;
/* set SDA to ouput */
dev->gpio_dir |= 1 << dev->board.tuner_sda_gpio;
status = cx231xx_set_gpio_bit(dev, dev->gpio_dir, (u8 *)&dev->gpio_val);
/* set SCL = 0 (output); set SDA = 0 (output) */
dev->gpio_val &= ~(1 << dev->board.tuner_sda_gpio);
dev->gpio_val &= ~(1 << dev->board.tuner_scl_gpio);
status = cx231xx_set_gpio_bit(dev, dev->gpio_dir, (u8 *)&dev->gpio_val);
/* set SCL = 1 (output); set SDA = 0 (output) */
dev->gpio_val |= 1 << dev->board.tuner_scl_gpio;
status = cx231xx_set_gpio_bit(dev, dev->gpio_dir, (u8 *)&dev->gpio_val);
/* set SCL = 0 (output); set SDA = 0 (output) */
dev->gpio_val &= ~(1 << dev->board.tuner_scl_gpio);
status = cx231xx_set_gpio_bit(dev, dev->gpio_dir, (u8 *)&dev->gpio_val);
/* set SDA to input,and then the slave will read data from SDA. */
dev->gpio_dir &= ~(1 << dev->board.tuner_sda_gpio);
status = cx231xx_set_gpio_bit(dev, dev->gpio_dir, (u8 *)&dev->gpio_val);
return status;
}
int cx231xx_gpio_i2c_write_nak(struct cx231xx *dev)
{
int status = 0;
/* set scl to output ; set sda to input */
dev->gpio_dir |= 1 << dev->board.tuner_scl_gpio;
dev->gpio_dir &= ~(1 << dev->board.tuner_sda_gpio);
status = cx231xx_set_gpio_bit(dev, dev->gpio_dir, (u8 *)&dev->gpio_val);
/* set scl to output 0; set sda to input */
dev->gpio_val &= ~(1 << dev->board.tuner_scl_gpio);
status = cx231xx_set_gpio_bit(dev, dev->gpio_dir, (u8 *)&dev->gpio_val);
/* set scl to output 1; set sda to input */
dev->gpio_val |= 1 << dev->board.tuner_scl_gpio;
status = cx231xx_set_gpio_bit(dev, dev->gpio_dir, (u8 *)&dev->gpio_val);
return status;
}
/*****************************************************************************
* G P I O I2C related functions *
******************************************************************************/
/* cx231xx_gpio_i2c_read
* Function to read data from gpio based I2C interface
*/
int cx231xx_gpio_i2c_read(struct cx231xx *dev, u8 dev_addr, u8 * buf, u8 len)
{
int status = 0;
int i = 0;
/* get the lock */
mutex_lock(&dev->gpio_i2c_lock);
/* start */
status = cx231xx_gpio_i2c_start(dev);
/* write dev_addr */
status = cx231xx_gpio_i2c_write_byte(dev, (dev_addr << 1) + 1);
/* readAck */
status = cx231xx_gpio_i2c_read_ack(dev);
/* read data */
for (i = 0; i < len; i++) {
/* read data */
buf[i] = 0;
status = cx231xx_gpio_i2c_read_byte(dev, &buf[i]);
if ((i + 1) != len) {
/* only do write ack if we more length */
status = cx231xx_gpio_i2c_write_ack(dev);
}
}
/* write NAK - inform reads are complete */
status = cx231xx_gpio_i2c_write_nak(dev);
/* write end */
status = cx231xx_gpio_i2c_end(dev);
/* release the lock */
mutex_unlock(&dev->gpio_i2c_lock);
return status;
}
/* cx231xx_gpio_i2c_write
* Function to write data to gpio based I2C interface
*/
int cx231xx_gpio_i2c_write(struct cx231xx *dev, u8 dev_addr, u8 * buf, u8 len)
{
int status = 0;
int i = 0;
/* get the lock */
mutex_lock(&dev->gpio_i2c_lock);
/* start */
status = cx231xx_gpio_i2c_start(dev);
/* write dev_addr */
status = cx231xx_gpio_i2c_write_byte(dev, dev_addr << 1);
/* read Ack */
status = cx231xx_gpio_i2c_read_ack(dev);
for (i = 0; i < len; i++) {
/* Write data */
status = cx231xx_gpio_i2c_write_byte(dev, buf[i]);
/* read Ack */
status = cx231xx_gpio_i2c_read_ack(dev);
}
/* write End */
status = cx231xx_gpio_i2c_end(dev);
/* release the lock */
mutex_unlock(&dev->gpio_i2c_lock);
return 0;
}
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