Linux-2.6.33.2/drivers/staging/cx25821/cx25821-medusa-video.c
/*
* Driver for the Conexant CX25821 PCIe bridge
*
* Copyright (C) 2009 Conexant Systems Inc.
* Authors <shu.lin@conexant.com>, <hiep.huynh@conexant.com>
*
* 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 "cx25821.h"
#include "cx25821-medusa-video.h"
#include "cx25821-biffuncs.h"
/////////////////////////////////////////////////////////////////////////////////////////
//medusa_enable_bluefield_output()
//
// Enable the generation of blue filed output if no video
//
static void medusa_enable_bluefield_output(struct cx25821_dev *dev, int channel,
int enable)
{
int ret_val = 1;
u32 value = 0;
u32 tmp = 0;
int out_ctrl = OUT_CTRL1;
int out_ctrl_ns = OUT_CTRL_NS;
switch (channel) {
default:
case VDEC_A:
break;
case VDEC_B:
out_ctrl = VDEC_B_OUT_CTRL1;
out_ctrl_ns = VDEC_B_OUT_CTRL_NS;
break;
case VDEC_C:
out_ctrl = VDEC_C_OUT_CTRL1;
out_ctrl_ns = VDEC_C_OUT_CTRL_NS;
break;
case VDEC_D:
out_ctrl = VDEC_D_OUT_CTRL1;
out_ctrl_ns = VDEC_D_OUT_CTRL_NS;
break;
case VDEC_E:
out_ctrl = VDEC_E_OUT_CTRL1;
out_ctrl_ns = VDEC_E_OUT_CTRL_NS;
return;
case VDEC_F:
out_ctrl = VDEC_F_OUT_CTRL1;
out_ctrl_ns = VDEC_F_OUT_CTRL_NS;
return;
case VDEC_G:
out_ctrl = VDEC_G_OUT_CTRL1;
out_ctrl_ns = VDEC_G_OUT_CTRL_NS;
return;
case VDEC_H:
out_ctrl = VDEC_H_OUT_CTRL1;
out_ctrl_ns = VDEC_H_OUT_CTRL_NS;
return;
}
value = cx25821_i2c_read(&dev->i2c_bus[0], out_ctrl, &tmp);
value &= 0xFFFFFF7F; // clear BLUE_FIELD_EN
if (enable)
value |= 0x00000080; // set BLUE_FIELD_EN
ret_val = cx25821_i2c_write(&dev->i2c_bus[0], out_ctrl, value);
value = cx25821_i2c_read(&dev->i2c_bus[0], out_ctrl_ns, &tmp);
value &= 0xFFFFFF7F;
if (enable)
value |= 0x00000080; // set BLUE_FIELD_EN
ret_val = cx25821_i2c_write(&dev->i2c_bus[0], out_ctrl_ns, value);
}
static int medusa_initialize_ntsc(struct cx25821_dev *dev)
{
int ret_val = 0;
int i = 0;
u32 value = 0;
u32 tmp = 0;
mutex_lock(&dev->lock);
for (i = 0; i < MAX_DECODERS; i++) {
// set video format NTSC-M
value =
cx25821_i2c_read(&dev->i2c_bus[0], MODE_CTRL + (0x200 * i),
&tmp);
value &= 0xFFFFFFF0;
value |= 0x10001; // enable the fast locking mode bit[16]
ret_val =
cx25821_i2c_write(&dev->i2c_bus[0], MODE_CTRL + (0x200 * i),
value);
// resolution NTSC 720x480
value =
cx25821_i2c_read(&dev->i2c_bus[0],
HORIZ_TIM_CTRL + (0x200 * i), &tmp);
value &= 0x00C00C00;
value |= 0x612D0074;
ret_val =
cx25821_i2c_write(&dev->i2c_bus[0],
HORIZ_TIM_CTRL + (0x200 * i), value);
value =
cx25821_i2c_read(&dev->i2c_bus[0],
VERT_TIM_CTRL + (0x200 * i), &tmp);
value &= 0x00C00C00;
value |= 0x1C1E001A; // vblank_cnt + 2 to get camera ID
ret_val =
cx25821_i2c_write(&dev->i2c_bus[0],
VERT_TIM_CTRL + (0x200 * i), value);
// chroma subcarrier step size
ret_val =
cx25821_i2c_write(&dev->i2c_bus[0],
SC_STEP_SIZE + (0x200 * i), 0x43E00000);
// enable VIP optional active
value =
cx25821_i2c_read(&dev->i2c_bus[0],
OUT_CTRL_NS + (0x200 * i), &tmp);
value &= 0xFFFBFFFF;
value |= 0x00040000;
ret_val =
cx25821_i2c_write(&dev->i2c_bus[0],
OUT_CTRL_NS + (0x200 * i), value);
// enable VIP optional active (VIP_OPT_AL) for direct output.
value =
cx25821_i2c_read(&dev->i2c_bus[0], OUT_CTRL1 + (0x200 * i),
&tmp);
value &= 0xFFFBFFFF;
value |= 0x00040000;
ret_val =
cx25821_i2c_write(&dev->i2c_bus[0], OUT_CTRL1 + (0x200 * i),
value);
// clear VPRES_VERT_EN bit, fixes the chroma run away problem
// when the input switching rate < 16 fields
//
value =
cx25821_i2c_read(&dev->i2c_bus[0],
MISC_TIM_CTRL + (0x200 * i), &tmp);
value = setBitAtPos(value, 14); // disable special play detection
value = clearBitAtPos(value, 15);
ret_val =
cx25821_i2c_write(&dev->i2c_bus[0],
MISC_TIM_CTRL + (0x200 * i), value);
// set vbi_gate_en to 0
value =
cx25821_i2c_read(&dev->i2c_bus[0], DFE_CTRL1 + (0x200 * i),
&tmp);
value = clearBitAtPos(value, 29);
ret_val =
cx25821_i2c_write(&dev->i2c_bus[0], DFE_CTRL1 + (0x200 * i),
value);
// Enable the generation of blue field output if no video
medusa_enable_bluefield_output(dev, i, 1);
}
for (i = 0; i < MAX_ENCODERS; i++) {
// NTSC hclock
value =
cx25821_i2c_read(&dev->i2c_bus[0],
DENC_A_REG_1 + (0x100 * i), &tmp);
value &= 0xF000FC00;
value |= 0x06B402D0;
ret_val =
cx25821_i2c_write(&dev->i2c_bus[0],
DENC_A_REG_1 + (0x100 * i), value);
// burst begin and burst end
value =
cx25821_i2c_read(&dev->i2c_bus[0],
DENC_A_REG_2 + (0x100 * i), &tmp);
value &= 0xFF000000;
value |= 0x007E9054;
ret_val =
cx25821_i2c_write(&dev->i2c_bus[0],
DENC_A_REG_2 + (0x100 * i), value);
value =
cx25821_i2c_read(&dev->i2c_bus[0],
DENC_A_REG_3 + (0x100 * i), &tmp);
value &= 0xFC00FE00;
value |= 0x00EC00F0;
ret_val =
cx25821_i2c_write(&dev->i2c_bus[0],
DENC_A_REG_3 + (0x100 * i), value);
// set NTSC vblank, no phase alternation, 7.5 IRE pedestal
value =
cx25821_i2c_read(&dev->i2c_bus[0],
DENC_A_REG_4 + (0x100 * i), &tmp);
value &= 0x00FCFFFF;
value |= 0x13020000;
ret_val =
cx25821_i2c_write(&dev->i2c_bus[0],
DENC_A_REG_4 + (0x100 * i), value);
value =
cx25821_i2c_read(&dev->i2c_bus[0],
DENC_A_REG_5 + (0x100 * i), &tmp);
value &= 0xFFFF0000;
value |= 0x0000E575;
ret_val =
cx25821_i2c_write(&dev->i2c_bus[0],
DENC_A_REG_5 + (0x100 * i), value);
ret_val =
cx25821_i2c_write(&dev->i2c_bus[0],
DENC_A_REG_6 + (0x100 * i), 0x009A89C1);
// Subcarrier Increment
ret_val =
cx25821_i2c_write(&dev->i2c_bus[0],
DENC_A_REG_7 + (0x100 * i), 0x21F07C1F);
}
//set picture resolutions
ret_val = cx25821_i2c_write(&dev->i2c_bus[0], HSCALE_CTRL, 0x0); //0 - 720
ret_val = cx25821_i2c_write(&dev->i2c_bus[0], VSCALE_CTRL, 0x0); //0 - 480
// set Bypass input format to NTSC 525 lines
value = cx25821_i2c_read(&dev->i2c_bus[0], BYP_AB_CTRL, &tmp);
value |= 0x00080200;
ret_val = cx25821_i2c_write(&dev->i2c_bus[0], BYP_AB_CTRL, value);
mutex_unlock(&dev->lock);
return ret_val;
}
static int medusa_PALCombInit(struct cx25821_dev *dev, int dec)
{
int ret_val = -1;
u32 value = 0, tmp = 0;
// Setup for 2D threshold
ret_val =
cx25821_i2c_write(&dev->i2c_bus[0], COMB_2D_HFS_CFG + (0x200 * dec),
0x20002861);
ret_val =
cx25821_i2c_write(&dev->i2c_bus[0], COMB_2D_HFD_CFG + (0x200 * dec),
0x20002861);
ret_val =
cx25821_i2c_write(&dev->i2c_bus[0], COMB_2D_LF_CFG + (0x200 * dec),
0x200A1023);
// Setup flat chroma and luma thresholds
value =
cx25821_i2c_read(&dev->i2c_bus[0],
COMB_FLAT_THRESH_CTRL + (0x200 * dec), &tmp);
value &= 0x06230000;
ret_val =
cx25821_i2c_write(&dev->i2c_bus[0],
COMB_FLAT_THRESH_CTRL + (0x200 * dec), value);
// set comb 2D blend
ret_val =
cx25821_i2c_write(&dev->i2c_bus[0], COMB_2D_BLEND + (0x200 * dec),
0x210F0F0F);
// COMB MISC CONTROL
ret_val =
cx25821_i2c_write(&dev->i2c_bus[0], COMB_MISC_CTRL + (0x200 * dec),
0x41120A7F);
return ret_val;
}
static int medusa_initialize_pal(struct cx25821_dev *dev)
{
int ret_val = 0;
int i = 0;
u32 value = 0;
u32 tmp = 0;
mutex_lock(&dev->lock);
for (i = 0; i < MAX_DECODERS; i++) {
// set video format PAL-BDGHI
value =
cx25821_i2c_read(&dev->i2c_bus[0], MODE_CTRL + (0x200 * i),
&tmp);
value &= 0xFFFFFFF0;
value |= 0x10004; // enable the fast locking mode bit[16]
ret_val =
cx25821_i2c_write(&dev->i2c_bus[0], MODE_CTRL + (0x200 * i),
value);
// resolution PAL 720x576
value =
cx25821_i2c_read(&dev->i2c_bus[0],
HORIZ_TIM_CTRL + (0x200 * i), &tmp);
value &= 0x00C00C00;
value |= 0x632D007D;
ret_val =
cx25821_i2c_write(&dev->i2c_bus[0],
HORIZ_TIM_CTRL + (0x200 * i), value);
// vblank656_cnt=x26, vactive_cnt=240h, vblank_cnt=x24
value =
cx25821_i2c_read(&dev->i2c_bus[0],
VERT_TIM_CTRL + (0x200 * i), &tmp);
value &= 0x00C00C00;
value |= 0x28240026; // vblank_cnt + 2 to get camera ID
ret_val =
cx25821_i2c_write(&dev->i2c_bus[0],
VERT_TIM_CTRL + (0x200 * i), value);
// chroma subcarrier step size
ret_val =
cx25821_i2c_write(&dev->i2c_bus[0],
SC_STEP_SIZE + (0x200 * i), 0x5411E2D0);
// enable VIP optional active
value =
cx25821_i2c_read(&dev->i2c_bus[0],
OUT_CTRL_NS + (0x200 * i), &tmp);
value &= 0xFFFBFFFF;
value |= 0x00040000;
ret_val =
cx25821_i2c_write(&dev->i2c_bus[0],
OUT_CTRL_NS + (0x200 * i), value);
// enable VIP optional active (VIP_OPT_AL) for direct output.
value =
cx25821_i2c_read(&dev->i2c_bus[0], OUT_CTRL1 + (0x200 * i),
&tmp);
value &= 0xFFFBFFFF;
value |= 0x00040000;
ret_val =
cx25821_i2c_write(&dev->i2c_bus[0], OUT_CTRL1 + (0x200 * i),
value);
// clear VPRES_VERT_EN bit, fixes the chroma run away problem
// when the input switching rate < 16 fields
value =
cx25821_i2c_read(&dev->i2c_bus[0],
MISC_TIM_CTRL + (0x200 * i), &tmp);
value = setBitAtPos(value, 14); // disable special play detection
value = clearBitAtPos(value, 15);
ret_val =
cx25821_i2c_write(&dev->i2c_bus[0],
MISC_TIM_CTRL + (0x200 * i), value);
// set vbi_gate_en to 0
value =
cx25821_i2c_read(&dev->i2c_bus[0], DFE_CTRL1 + (0x200 * i),
&tmp);
value = clearBitAtPos(value, 29);
ret_val =
cx25821_i2c_write(&dev->i2c_bus[0], DFE_CTRL1 + (0x200 * i),
value);
medusa_PALCombInit(dev, i);
// Enable the generation of blue field output if no video
medusa_enable_bluefield_output(dev, i, 1);
}
for (i = 0; i < MAX_ENCODERS; i++) {
// PAL hclock
value =
cx25821_i2c_read(&dev->i2c_bus[0],
DENC_A_REG_1 + (0x100 * i), &tmp);
value &= 0xF000FC00;
value |= 0x06C002D0;
ret_val =
cx25821_i2c_write(&dev->i2c_bus[0],
DENC_A_REG_1 + (0x100 * i), value);
// burst begin and burst end
value =
cx25821_i2c_read(&dev->i2c_bus[0],
DENC_A_REG_2 + (0x100 * i), &tmp);
value &= 0xFF000000;
value |= 0x007E9754;
ret_val =
cx25821_i2c_write(&dev->i2c_bus[0],
DENC_A_REG_2 + (0x100 * i), value);
// hblank and vactive
value =
cx25821_i2c_read(&dev->i2c_bus[0],
DENC_A_REG_3 + (0x100 * i), &tmp);
value &= 0xFC00FE00;
value |= 0x00FC0120;
ret_val =
cx25821_i2c_write(&dev->i2c_bus[0],
DENC_A_REG_3 + (0x100 * i), value);
// set PAL vblank, phase alternation, 0 IRE pedestal
value =
cx25821_i2c_read(&dev->i2c_bus[0],
DENC_A_REG_4 + (0x100 * i), &tmp);
value &= 0x00FCFFFF;
value |= 0x14010000;
ret_val =
cx25821_i2c_write(&dev->i2c_bus[0],
DENC_A_REG_4 + (0x100 * i), value);
value =
cx25821_i2c_read(&dev->i2c_bus[0],
DENC_A_REG_5 + (0x100 * i), &tmp);
value &= 0xFFFF0000;
value |= 0x0000F078;
ret_val =
cx25821_i2c_write(&dev->i2c_bus[0],
DENC_A_REG_5 + (0x100 * i), value);
ret_val =
cx25821_i2c_write(&dev->i2c_bus[0],
DENC_A_REG_6 + (0x100 * i), 0x00A493CF);
// Subcarrier Increment
ret_val =
cx25821_i2c_write(&dev->i2c_bus[0],
DENC_A_REG_7 + (0x100 * i), 0x2A098ACB);
}
//set picture resolutions
ret_val = cx25821_i2c_write(&dev->i2c_bus[0], HSCALE_CTRL, 0x0); //0 - 720
ret_val = cx25821_i2c_write(&dev->i2c_bus[0], VSCALE_CTRL, 0x0); //0 - 576
// set Bypass input format to PAL 625 lines
value = cx25821_i2c_read(&dev->i2c_bus[0], BYP_AB_CTRL, &tmp);
value &= 0xFFF7FDFF;
ret_val = cx25821_i2c_write(&dev->i2c_bus[0], BYP_AB_CTRL, value);
mutex_unlock(&dev->lock);
return ret_val;
}
int medusa_set_videostandard(struct cx25821_dev *dev)
{
int status = STATUS_SUCCESS;
u32 value = 0, tmp = 0;
if (dev->tvnorm & V4L2_STD_PAL_BG || dev->tvnorm & V4L2_STD_PAL_DK) {
status = medusa_initialize_pal(dev);
} else {
status = medusa_initialize_ntsc(dev);
}
// Enable DENC_A output
value = cx25821_i2c_read(&dev->i2c_bus[0], DENC_A_REG_4, &tmp);
value = setBitAtPos(value, 4);
status = cx25821_i2c_write(&dev->i2c_bus[0], DENC_A_REG_4, value);
// Enable DENC_B output
value = cx25821_i2c_read(&dev->i2c_bus[0], DENC_B_REG_4, &tmp);
value = setBitAtPos(value, 4);
status = cx25821_i2c_write(&dev->i2c_bus[0], DENC_B_REG_4, value);
return status;
}
void medusa_set_resolution(struct cx25821_dev *dev, int width,
int decoder_select)
{
int decoder = 0;
int decoder_count = 0;
int ret_val = 0;
u32 hscale = 0x0;
u32 vscale = 0x0;
const int MAX_WIDTH = 720;
mutex_lock(&dev->lock);
// validate the width - cannot be negative
if (width > MAX_WIDTH) {
printk
("cx25821 %s() : width %d > MAX_WIDTH %d ! resetting to MAX_WIDTH \n",
__func__, width, MAX_WIDTH);
width = MAX_WIDTH;
}
if (decoder_select <= 7 && decoder_select >= 0) {
decoder = decoder_select;
decoder_count = decoder_select + 1;
} else {
decoder = 0;
decoder_count = _num_decoders;
}
switch (width) {
case 320:
hscale = 0x13E34B;
vscale = 0x0;
break;
case 352:
hscale = 0x10A273;
vscale = 0x0;
break;
case 176:
hscale = 0x3115B2;
vscale = 0x1E00;
break;
case 160:
hscale = 0x378D84;
vscale = 0x1E00;
break;
default: //720
hscale = 0x0;
vscale = 0x0;
break;
}
for (; decoder < decoder_count; decoder++) {
// write scaling values for each decoder
ret_val =
cx25821_i2c_write(&dev->i2c_bus[0],
HSCALE_CTRL + (0x200 * decoder), hscale);
ret_val =
cx25821_i2c_write(&dev->i2c_bus[0],
VSCALE_CTRL + (0x200 * decoder), vscale);
}
mutex_unlock(&dev->lock);
}
static void medusa_set_decoderduration(struct cx25821_dev *dev, int decoder,
int duration)
{
int ret_val = 0;
u32 fld_cnt = 0;
u32 tmp = 0;
u32 disp_cnt_reg = DISP_AB_CNT;
mutex_lock(&dev->lock);
// no support
if (decoder < VDEC_A && decoder > VDEC_H) {
mutex_unlock(&dev->lock);
return;
}
switch (decoder) {
default:
break;
case VDEC_C:
case VDEC_D:
disp_cnt_reg = DISP_CD_CNT;
break;
case VDEC_E:
case VDEC_F:
disp_cnt_reg = DISP_EF_CNT;
break;
case VDEC_G:
case VDEC_H:
disp_cnt_reg = DISP_GH_CNT;
break;
}
_display_field_cnt[decoder] = duration;
// update hardware
fld_cnt = cx25821_i2c_read(&dev->i2c_bus[0], disp_cnt_reg, &tmp);
if (!(decoder % 2)) // EVEN decoder
{
fld_cnt &= 0xFFFF0000;
fld_cnt |= duration;
} else {
fld_cnt &= 0x0000FFFF;
fld_cnt |= ((u32) duration) << 16;
}
ret_val = cx25821_i2c_write(&dev->i2c_bus[0], disp_cnt_reg, fld_cnt);
mutex_unlock(&dev->lock);
}
/////////////////////////////////////////////////////////////////////////////////////////
// Map to Medusa register setting
static int mapM(int srcMin,
int srcMax, int srcVal, int dstMin, int dstMax, int *dstVal)
{
int numerator;
int denominator;
int quotient;
if ((srcMin == srcMax) || (srcVal < srcMin) || (srcVal > srcMax)) {
return -1;
}
// This is the overall expression used:
// *dstVal = (srcVal - srcMin)*(dstMax - dstMin) / (srcMax - srcMin) + dstMin;
// but we need to account for rounding so below we use the modulus
// operator to find the remainder and increment if necessary.
numerator = (srcVal - srcMin) * (dstMax - dstMin);
denominator = srcMax - srcMin;
quotient = numerator / denominator;
if (2 * (numerator % denominator) >= denominator) {
quotient++;
}
*dstVal = quotient + dstMin;
return 0;
}
static unsigned long convert_to_twos(long numeric, unsigned long bits_len)
{
unsigned char temp;
if (numeric >= 0)
return numeric;
else {
temp = ~(abs(numeric) & 0xFF);
temp += 1;
return temp;
}
}
/////////////////////////////////////////////////////////////////////////////////////////
int medusa_set_brightness(struct cx25821_dev *dev, int brightness, int decoder)
{
int ret_val = 0;
int value = 0;
u32 val = 0, tmp = 0;
mutex_lock(&dev->lock);
if ((brightness > VIDEO_PROCAMP_MAX)
|| (brightness < VIDEO_PROCAMP_MIN)) {
mutex_unlock(&dev->lock);
return -1;
}
ret_val =
mapM(VIDEO_PROCAMP_MIN, VIDEO_PROCAMP_MAX, brightness,
SIGNED_BYTE_MIN, SIGNED_BYTE_MAX, &value);
value = convert_to_twos(value, 8);
val =
cx25821_i2c_read(&dev->i2c_bus[0],
VDEC_A_BRITE_CTRL + (0x200 * decoder), &tmp);
val &= 0xFFFFFF00;
ret_val |=
cx25821_i2c_write(&dev->i2c_bus[0],
VDEC_A_BRITE_CTRL + (0x200 * decoder),
val | value);
mutex_unlock(&dev->lock);
return ret_val;
}
/////////////////////////////////////////////////////////////////////////////////////////
int medusa_set_contrast(struct cx25821_dev *dev, int contrast, int decoder)
{
int ret_val = 0;
int value = 0;
u32 val = 0, tmp = 0;
mutex_lock(&dev->lock);
if ((contrast > VIDEO_PROCAMP_MAX) || (contrast < VIDEO_PROCAMP_MIN)) {
mutex_unlock(&dev->lock);
return -1;
}
ret_val =
mapM(VIDEO_PROCAMP_MIN, VIDEO_PROCAMP_MAX, contrast,
UNSIGNED_BYTE_MIN, UNSIGNED_BYTE_MAX, &value);
val =
cx25821_i2c_read(&dev->i2c_bus[0],
VDEC_A_CNTRST_CTRL + (0x200 * decoder), &tmp);
val &= 0xFFFFFF00;
ret_val |=
cx25821_i2c_write(&dev->i2c_bus[0],
VDEC_A_CNTRST_CTRL + (0x200 * decoder),
val | value);
mutex_unlock(&dev->lock);
return ret_val;
}
/////////////////////////////////////////////////////////////////////////////////////////
int medusa_set_hue(struct cx25821_dev *dev, int hue, int decoder)
{
int ret_val = 0;
int value = 0;
u32 val = 0, tmp = 0;
mutex_lock(&dev->lock);
if ((hue > VIDEO_PROCAMP_MAX) || (hue < VIDEO_PROCAMP_MIN)) {
mutex_unlock(&dev->lock);
return -1;
}
ret_val =
mapM(VIDEO_PROCAMP_MIN, VIDEO_PROCAMP_MAX, hue, SIGNED_BYTE_MIN,
SIGNED_BYTE_MAX, &value);
value = convert_to_twos(value, 8);
val =
cx25821_i2c_read(&dev->i2c_bus[0],
VDEC_A_HUE_CTRL + (0x200 * decoder), &tmp);
val &= 0xFFFFFF00;
ret_val |=
cx25821_i2c_write(&dev->i2c_bus[0],
VDEC_A_HUE_CTRL + (0x200 * decoder), val | value);
mutex_unlock(&dev->lock);
return ret_val;
}
/////////////////////////////////////////////////////////////////////////////////////////
int medusa_set_saturation(struct cx25821_dev *dev, int saturation, int decoder)
{
int ret_val = 0;
int value = 0;
u32 val = 0, tmp = 0;
mutex_lock(&dev->lock);
if ((saturation > VIDEO_PROCAMP_MAX)
|| (saturation < VIDEO_PROCAMP_MIN)) {
mutex_unlock(&dev->lock);
return -1;
}
ret_val =
mapM(VIDEO_PROCAMP_MIN, VIDEO_PROCAMP_MAX, saturation,
UNSIGNED_BYTE_MIN, UNSIGNED_BYTE_MAX, &value);
val =
cx25821_i2c_read(&dev->i2c_bus[0],
VDEC_A_USAT_CTRL + (0x200 * decoder), &tmp);
val &= 0xFFFFFF00;
ret_val |=
cx25821_i2c_write(&dev->i2c_bus[0],
VDEC_A_USAT_CTRL + (0x200 * decoder),
val | value);
val =
cx25821_i2c_read(&dev->i2c_bus[0],
VDEC_A_VSAT_CTRL + (0x200 * decoder), &tmp);
val &= 0xFFFFFF00;
ret_val |=
cx25821_i2c_write(&dev->i2c_bus[0],
VDEC_A_VSAT_CTRL + (0x200 * decoder),
val | value);
mutex_unlock(&dev->lock);
return ret_val;
}
/////////////////////////////////////////////////////////////////////////////////////////
// Program the display sequence and monitor output.
//
int medusa_video_init(struct cx25821_dev *dev)
{
u32 value = 0, tmp = 0;
int ret_val = 0;
int i = 0;
mutex_lock(&dev->lock);
_num_decoders = dev->_max_num_decoders;
// disable Auto source selection on all video decoders
value = cx25821_i2c_read(&dev->i2c_bus[0], MON_A_CTRL, &tmp);
value &= 0xFFFFF0FF;
ret_val = cx25821_i2c_write(&dev->i2c_bus[0], MON_A_CTRL, value);
if (ret_val < 0) {
mutex_unlock(&dev->lock);
return -EINVAL;
}
// Turn off Master source switch enable
value = cx25821_i2c_read(&dev->i2c_bus[0], MON_A_CTRL, &tmp);
value &= 0xFFFFFFDF;
ret_val = cx25821_i2c_write(&dev->i2c_bus[0], MON_A_CTRL, value);
if (ret_val < 0) {
mutex_unlock(&dev->lock);
return -EINVAL;
}
mutex_unlock(&dev->lock);
for (i = 0; i < _num_decoders; i++) {
medusa_set_decoderduration(dev, i, _display_field_cnt[i]);
}
mutex_lock(&dev->lock);
// Select monitor as DENC A input, power up the DAC
value = cx25821_i2c_read(&dev->i2c_bus[0], DENC_AB_CTRL, &tmp);
value &= 0xFF70FF70;
value |= 0x00090008; // set en_active
ret_val = cx25821_i2c_write(&dev->i2c_bus[0], DENC_AB_CTRL, value);
if (ret_val < 0) {
mutex_unlock(&dev->lock);
return -EINVAL;
}
// enable input is VIP/656
value = cx25821_i2c_read(&dev->i2c_bus[0], BYP_AB_CTRL, &tmp);
value |= 0x00040100; // enable VIP
ret_val = cx25821_i2c_write(&dev->i2c_bus[0], BYP_AB_CTRL, value);
if (ret_val < 0) {
mutex_unlock(&dev->lock);
return -EINVAL;
}
// select AFE clock to output mode
value = cx25821_i2c_read(&dev->i2c_bus[0], AFE_AB_DIAG_CTRL, &tmp);
value &= 0x83FFFFFF;
ret_val =
cx25821_i2c_write(&dev->i2c_bus[0], AFE_AB_DIAG_CTRL,
value | 0x10000000);
if (ret_val < 0) {
mutex_unlock(&dev->lock);
return -EINVAL;
}
// Turn on all of the data out and control output pins.
value = cx25821_i2c_read(&dev->i2c_bus[0], PIN_OE_CTRL, &tmp);
value &= 0xFEF0FE00;
if (_num_decoders == MAX_DECODERS) {
// Note: The octal board does not support control pins(bit16-19).
// These bits are ignored in the octal board.
value |= 0x010001F8; // disable VDEC A-C port, default to Mobilygen Interface
} else {
value |= 0x010F0108; // disable VDEC A-C port, default to Mobilygen Interface
}
value |= 7;
ret_val = cx25821_i2c_write(&dev->i2c_bus[0], PIN_OE_CTRL, value);
if (ret_val < 0) {
mutex_unlock(&dev->lock);
return -EINVAL;
}
mutex_unlock(&dev->lock);
ret_val = medusa_set_videostandard(dev);
if (ret_val < 0)
return -EINVAL;
return 1;
}