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linux-stable/drivers/media/pci/cx25821/cx25821-medusa-video.c
Thomas Gleixner c942fddf87 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 157 
Based on 3 normalized pattern(s):

  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

  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 [author] [kishon] [vijay] [abraham]
  [i] [kishon]@[ti] [com] 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

  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 [author] [graeme] [gregory]
  [gg]@[slimlogic] [co] [uk] [author] [kishon] [vijay] [abraham] [i]
  [kishon]@[ti] [com] [based] [on] [twl6030]_[usb] [c] [author] [hema]
  [hk] [hemahk]@[ti] [com] 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

extracted by the scancode license scanner the SPDX license identifier

  GPL-2.0-or-later

has been chosen to replace the boilerplate/reference in 1105 file(s).

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Allison Randal <allison@lohutok.net>
Reviewed-by: Richard Fontana <rfontana@redhat.com>
Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190527070033.202006027@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-05-30 11:26:37 -07:00

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// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Driver for the Conexant CX25821 PCIe bridge
*
* Copyright (C) 2009 Conexant Systems Inc.
* Authors <shu.lin@conexant.com>, <hiep.huynh@conexant.com>
*/
#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
#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)
{
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 */
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 */
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;
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;
/* enable the fast locking mode bit[16] */
value |= 0x10001;
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);
/* disable special play detection */
value = setBitAtPos(value, 14);
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 */
/* 0 - 720 */
ret_val = cx25821_i2c_write(&dev->i2c_bus[0], HSCALE_CTRL, 0x0);
/* 0 - 480 */
ret_val = cx25821_i2c_write(&dev->i2c_bus[0], VSCALE_CTRL, 0x0);
/* 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);
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;
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;
/* enable the fast locking mode bit[16] */
value |= 0x10004;
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);
/* disable special play detection */
value = setBitAtPos(value, 14);
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 */
/* 0 - 720 */
ret_val = cx25821_i2c_write(&dev->i2c_bus[0], HSCALE_CTRL, 0x0);
/* 0 - 576 */
ret_val = cx25821_i2c_write(&dev->i2c_bus[0], VSCALE_CTRL, 0x0);
/* 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);
return ret_val;
}
int medusa_set_videostandard(struct cx25821_dev *dev)
{
int status = 0;
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;
u32 hscale = 0x0;
u32 vscale = 0x0;
const int MAX_WIDTH = 720;
/* validate the width */
if (width > MAX_WIDTH) {
pr_info("%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 = dev->_max_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 */
cx25821_i2c_write(&dev->i2c_bus[0],
HSCALE_CTRL + (0x200 * decoder), hscale);
cx25821_i2c_write(&dev->i2c_bus[0],
VSCALE_CTRL + (0x200 * decoder), vscale);
}
}
static void medusa_set_decoderduration(struct cx25821_dev *dev, int decoder,
int duration)
{
u32 fld_cnt = 0;
u32 tmp = 0;
u32 disp_cnt_reg = DISP_AB_CNT;
/* no support */
if (decoder < VDEC_A || decoder > VDEC_H) {
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;
}
/* 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;
}
cx25821_i2c_write(&dev->i2c_bus[0], disp_cnt_reg, fld_cnt);
}
/* 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;
if ((brightness > VIDEO_PROCAMP_MAX) ||
(brightness < VIDEO_PROCAMP_MIN)) {
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);
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;
if ((contrast > VIDEO_PROCAMP_MAX) || (contrast < VIDEO_PROCAMP_MIN)) {
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);
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;
if ((hue > VIDEO_PROCAMP_MAX) || (hue < VIDEO_PROCAMP_MIN)) {
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);
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;
if ((saturation > VIDEO_PROCAMP_MAX) ||
(saturation < VIDEO_PROCAMP_MIN)) {
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);
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;
/* 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)
goto error;
/* 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)
goto error;
/*
* FIXME: due to a coding bug the duration was always 0. It's
* likely that it really should be something else, but due to the
* lack of documentation I have no idea what it should be. For
* now just fill in 0 as the duration.
*/
for (i = 0; i < dev->_max_num_decoders; i++)
medusa_set_decoderduration(dev, i, 0);
/* 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)
goto error;
/* 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)
goto error;
/* 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)
goto error;
/* 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 (dev->_max_num_decoders == MAX_DECODERS) {
/*
* Note: The octal board does not support control pins(bit16-19)
* These bits are ignored in the octal board.
*
* disable VDEC A-C port, default to Mobilygen Interface
*/
value |= 0x010001F8;
} else {
/* disable VDEC A-C port, default to Mobilygen Interface */
value |= 0x010F0108;
}
value |= 7;
ret_val = cx25821_i2c_write(&dev->i2c_bus[0], PIN_OE_CTRL, value);
if (ret_val < 0)
goto error;
ret_val = medusa_set_videostandard(dev);
error:
return ret_val;
}
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