/*****************************************************************************
* *
* *
* easycap_low.c *
* *
* *
*****************************************************************************/
/*
*
* Copyright (C) 2010 R.M. Thomas <rmthomas@sciolus.org>
*
*
* This 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.
*
* The software 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 software; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
*/
/*****************************************************************************/
/*
* ACKNOWLEGEMENTS AND REFERENCES
* ------------------------------
* This driver makes use of register information contained in the Syntek
* Semicon DC-1125 driver hosted at
* http://sourceforge.net/projects/syntekdriver/.
* Particularly useful has been a patch to the latter driver provided by
* Ivor Hewitt in January 2009. The NTSC implementation is taken from the
* work of Ben Trask.
*/
/****************************************************************************/
#include "easycap.h"
#define GET(X, Y, Z) do { \
int __rc; \
*(Z) = (u16)0; \
__rc = regget(X, Y, Z, sizeof(u8)); \
if (0 > __rc) { \
JOT(8, ":-(%i\n", __LINE__); return __rc; \
} \
} while (0)
#define SET(X, Y, Z) do { \
int __rc; \
__rc = regset(X, Y, Z); \
if (0 > __rc) { \
JOT(8, ":-(%i\n", __LINE__); return __rc; \
} \
} while (0)
/*--------------------------------------------------------------------------*/
static const struct stk1160config {
int reg;
int set;
} stk1160configPAL[256] = {
{0x000, 0x0098},
{0x002, 0x0093},
{0x001, 0x0003},
{0x003, 0x0080},
{0x00D, 0x0000},
{0x00F, 0x0002},
{0x018, 0x0010},
{0x019, 0x0000},
{0x01A, 0x0014},
{0x01B, 0x000E},
{0x01C, 0x0046},
{0x100, 0x0033},
{0x103, 0x0000},
{0x104, 0x0000},
{0x105, 0x0000},
{0x106, 0x0000},
/* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
/*
* RESOLUTION 640x480
*/
/* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
{0x110, 0x0008},
{0x111, 0x0000},
{0x112, 0x0020},
{0x113, 0x0000},
{0x114, 0x0508},
{0x115, 0x0005},
{0x116, 0x0110},
{0x117, 0x0001},
/* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
{0x202, 0x000F},
{0x203, 0x004A},
{0x2FF, 0x0000},
{0xFFF, 0xFFFF}
};
/*--------------------------------------------------------------------------*/
static const struct stk1160config stk1160configNTSC[256] = {
{0x000, 0x0098},
{0x002, 0x0093},
{0x001, 0x0003},
{0x003, 0x0080},
{0x00D, 0x0000},
{0x00F, 0x0002},
{0x018, 0x0010},
{0x019, 0x0000},
{0x01A, 0x0014},
{0x01B, 0x000E},
{0x01C, 0x0046},
{0x100, 0x0033},
{0x103, 0x0000},
{0x104, 0x0000},
{0x105, 0x0000},
{0x106, 0x0000},
/* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
/*
* RESOLUTION 640x480
*/
/* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
{0x110, 0x0008},
{0x111, 0x0000},
{0x112, 0x0003},
{0x113, 0x0000},
{0x114, 0x0508},
{0x115, 0x0005},
{0x116, 0x00F3},
{0x117, 0x0000},
/* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
{0x202, 0x000F},
{0x203, 0x004A},
{0x2FF, 0x0000},
{0xFFF, 0xFFFF}
};
/*--------------------------------------------------------------------------*/
static const struct saa7113config {
int reg;
int set;
} saa7113configPAL[256] = {
{0x01, 0x08},
{0x02, 0x80},
{0x03, 0x33},
{0x04, 0x00},
{0x05, 0x00},
{0x06, 0xE9},
{0x07, 0x0D},
{0x08, 0x38},
{0x09, 0x00},
{0x0A, SAA_0A_DEFAULT},
{0x0B, SAA_0B_DEFAULT},
{0x0C, SAA_0C_DEFAULT},
{0x0D, SAA_0D_DEFAULT},
{0x0E, 0x01},
{0x0F, 0x36},
{0x10, 0x00},
{0x11, 0x0C},
{0x12, 0xE7},
{0x13, 0x00},
{0x15, 0x00},
{0x16, 0x00},
{0x40, 0x02},
{0x41, 0xFF},
{0x42, 0xFF},
{0x43, 0xFF},
{0x44, 0xFF},
{0x45, 0xFF},
{0x46, 0xFF},
{0x47, 0xFF},
{0x48, 0xFF},
{0x49, 0xFF},
{0x4A, 0xFF},
{0x4B, 0xFF},
{0x4C, 0xFF},
{0x4D, 0xFF},
{0x4E, 0xFF},
{0x4F, 0xFF},
{0x50, 0xFF},
{0x51, 0xFF},
{0x52, 0xFF},
{0x53, 0xFF},
{0x54, 0xFF},
{0x55, 0xFF},
{0x56, 0xFF},
{0x57, 0xFF},
{0x58, 0x40},
{0x59, 0x54},
{0x5A, 0x07},
{0x5B, 0x83},
{0xFF, 0xFF}
};
/*--------------------------------------------------------------------------*/
static const struct saa7113config saa7113configNTSC[256] = {
{0x01, 0x08},
{0x02, 0x80},
{0x03, 0x33},
{0x04, 0x00},
{0x05, 0x00},
{0x06, 0xE9},
{0x07, 0x0D},
{0x08, 0x78},
{0x09, 0x00},
{0x0A, SAA_0A_DEFAULT},
{0x0B, SAA_0B_DEFAULT},
{0x0C, SAA_0C_DEFAULT},
{0x0D, SAA_0D_DEFAULT},
{0x0E, 0x01},
{0x0F, 0x36},
{0x10, 0x00},
{0x11, 0x0C},
{0x12, 0xE7},
{0x13, 0x00},
{0x15, 0x00},
{0x16, 0x00},
{0x40, 0x82},
{0x41, 0xFF},
{0x42, 0xFF},
{0x43, 0xFF},
{0x44, 0xFF},
{0x45, 0xFF},
{0x46, 0xFF},
{0x47, 0xFF},
{0x48, 0xFF},
{0x49, 0xFF},
{0x4A, 0xFF},
{0x4B, 0xFF},
{0x4C, 0xFF},
{0x4D, 0xFF},
{0x4E, 0xFF},
{0x4F, 0xFF},
{0x50, 0xFF},
{0x51, 0xFF},
{0x52, 0xFF},
{0x53, 0xFF},
{0x54, 0xFF},
{0x55, 0xFF},
{0x56, 0xFF},
{0x57, 0xFF},
{0x58, 0x40},
{0x59, 0x54},
{0x5A, 0x0A},
{0x5B, 0x83},
{0xFF, 0xFF}
};
static int regget(struct usb_device *pusb_device,
u16 index, void *reg, int reg_size)
{
int rc;
if (!pusb_device)
return -ENODEV;
rc = usb_control_msg(pusb_device, usb_rcvctrlpipe(pusb_device, 0),
0x00,
(USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE),
0x00,
index, reg, reg_size, 50000);
return rc;
}
static int regset(struct usb_device *pusb_device, u16 index, u16 value)
{
int rc;
if (!pusb_device)
return -ENODEV;
rc = usb_control_msg(pusb_device, usb_sndctrlpipe(pusb_device, 0),
0x01,
(USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE),
value, index, NULL, 0, 500);
if (rc < 0)
return rc;
if (easycap_readback) {
u16 igot = 0;
rc = regget(pusb_device, index, &igot, sizeof(igot));
igot = 0xFF & igot;
switch (index) {
case 0x000:
case 0x500:
case 0x502:
case 0x503:
case 0x504:
case 0x506:
case 0x507:
break;
case 0x204:
case 0x205:
case 0x350:
case 0x351:
if (igot)
JOT(8, "unexpected 0x%02X "
"for STK register 0x%03X\n",
igot, index);
break;
default:
if ((0xFF & value) != igot)
JOT(8, "unexpected 0x%02X != 0x%02X "
"for STK register 0x%03X\n",
igot, value, index);
break;
}
}
return rc;
}
/*--------------------------------------------------------------------------*/
/*
* FUNCTION wait_i2c() RETURNS 0 ON SUCCESS
*/
/*--------------------------------------------------------------------------*/
static int wait_i2c(struct usb_device *p)
{
u16 get0;
u8 igot;
const int max = 2;
int k;
if (!p)
return -ENODEV;
for (k = 0; k < max; k++) {
GET(p, 0x0201, &igot); get0 = igot;
switch (get0) {
case 0x04:
case 0x01:
return 0;
case 0x00:
msleep(20);
continue;
default:
return get0 - 1;
}
}
return -1;
}
/****************************************************************************/
int confirm_resolution(struct usb_device *p)
{
u8 get0, get1, get2, get3, get4, get5, get6, get7;
if (!p)
return -ENODEV;
GET(p, 0x0110, &get0);
GET(p, 0x0111, &get1);
GET(p, 0x0112, &get2);
GET(p, 0x0113, &get3);
GET(p, 0x0114, &get4);
GET(p, 0x0115, &get5);
GET(p, 0x0116, &get6);
GET(p, 0x0117, &get7);
JOT(8, "0x%03X, 0x%03X, "
"0x%03X, 0x%03X, "
"0x%03X, 0x%03X, "
"0x%03X, 0x%03X\n",
get0, get1, get2, get3, get4, get5, get6, get7);
JOT(8, "....cf PAL_720x526: "
"0x%03X, 0x%03X, "
"0x%03X, 0x%03X, "
"0x%03X, 0x%03X, "
"0x%03X, 0x%03X\n",
0x000, 0x000, 0x001, 0x000, 0x5A0, 0x005, 0x121, 0x001);
JOT(8, "....cf PAL_704x526: "
"0x%03X, 0x%03X, "
"0x%03X, 0x%03X, "
"0x%03X, 0x%03X, "
"0x%03X, 0x%03X\n",
0x004, 0x000, 0x001, 0x000, 0x584, 0x005, 0x121, 0x001);
JOT(8, "....cf VGA_640x480: "
"0x%03X, 0x%03X, "
"0x%03X, 0x%03X, "
"0x%03X, 0x%03X, "
"0x%03X, 0x%03X\n",
0x008, 0x000, 0x020, 0x000, 0x508, 0x005, 0x110, 0x001);
return 0;
}
/****************************************************************************/
int confirm_stream(struct usb_device *p)
{
u16 get2;
u8 igot;
if (!p)
return -ENODEV;
GET(p, 0x0100, &igot); get2 = 0x80 & igot;
if (0x80 == get2)
JOT(8, "confirm_stream: OK\n");
else
JOT(8, "confirm_stream: STUCK\n");
return 0;
}
/****************************************************************************/
int setup_stk(struct usb_device *p, bool ntsc)
{
int i;
const struct stk1160config *cfg;
if (!p)
return -ENODEV;
cfg = (ntsc) ? stk1160configNTSC : stk1160configPAL;
for (i = 0; cfg[i].reg != 0xFFF; i++)
SET(p, cfg[i].reg, cfg[i].set);
write_300(p);
return 0;
}
/****************************************************************************/
int setup_saa(struct usb_device *p, bool ntsc)
{
int i, ir;
const struct saa7113config *cfg;
if (!p)
return -ENODEV;
cfg = (ntsc) ? saa7113configNTSC : saa7113configPAL;
for (i = 0; cfg[i].reg != 0xFF; i++)
ir = write_saa(p, cfg[i].reg, cfg[i].set);
return 0;
}
/****************************************************************************/
int write_000(struct usb_device *p, u16 set2, u16 set0)
{
u8 igot0, igot2;
if (!p)
return -ENODEV;
GET(p, 0x0002, &igot2);
GET(p, 0x0000, &igot0);
SET(p, 0x0002, set2);
SET(p, 0x0000, set0);
return 0;
}
/****************************************************************************/
int write_saa(struct usb_device *p, u16 reg0, u16 set0)
{
if (!p)
return -ENODEV;
SET(p, 0x200, 0x00);
SET(p, 0x204, reg0);
SET(p, 0x205, set0);
SET(p, 0x200, 0x01);
return wait_i2c(p);
}
/****************************************************************************/
/*--------------------------------------------------------------------------*/
/*
* REGISTER 500: SETTING VALUE TO 0x008B READS FROM VT1612A (?)
* REGISTER 500: SETTING VALUE TO 0x008C WRITES TO VT1612A
* REGISTER 502: LEAST SIGNIFICANT BYTE OF VALUE TO SET
* REGISTER 503: MOST SIGNIFICANT BYTE OF VALUE TO SET
* REGISTER 504: TARGET ADDRESS ON VT1612A
*/
/*--------------------------------------------------------------------------*/
int
write_vt(struct usb_device *p, u16 reg0, u16 set0)
{
u8 igot;
u16 got502, got503;
u16 set502, set503;
if (!p)
return -ENODEV;
SET(p, 0x0504, reg0);
SET(p, 0x0500, 0x008B);
GET(p, 0x0502, &igot); got502 = (0xFF & igot);
GET(p, 0x0503, &igot); got503 = (0xFF & igot);
JOT(16, "write_vt(., 0x%04X, 0x%04X): was 0x%04X\n",
reg0, set0, ((got503 << 8) | got502));
set502 = (0x00FF & set0);
set503 = ((0xFF00 & set0) >> 8);
SET(p, 0x0504, reg0);
SET(p, 0x0502, set502);
SET(p, 0x0503, set503);
SET(p, 0x0500, 0x008C);
return 0;
}
/****************************************************************************/
/*--------------------------------------------------------------------------*/
/*
* REGISTER 500: SETTING VALUE TO 0x008B READS FROM VT1612A (?)
* REGISTER 500: SETTING VALUE TO 0x008C WRITES TO VT1612A
* REGISTER 502: LEAST SIGNIFICANT BYTE OF VALUE TO GET
* REGISTER 503: MOST SIGNIFICANT BYTE OF VALUE TO GET
* REGISTER 504: TARGET ADDRESS ON VT1612A
*/
/*--------------------------------------------------------------------------*/
int read_vt(struct usb_device *p, u16 reg0)
{
u8 igot;
u16 got502, got503;
if (!p)
return -ENODEV;
SET(p, 0x0504, reg0);
SET(p, 0x0500, 0x008B);
GET(p, 0x0502, &igot); got502 = (0xFF & igot);
GET(p, 0x0503, &igot); got503 = (0xFF & igot);
JOT(16, "read_vt(., 0x%04X): has 0x%04X\n",
reg0, ((got503 << 8) | got502));
return (got503 << 8) | got502;
}
/****************************************************************************/
/*--------------------------------------------------------------------------*/
/*
* THESE APPEAR TO HAVE NO EFFECT ON EITHER VIDEO OR AUDIO.
*/
/*--------------------------------------------------------------------------*/
int write_300(struct usb_device *p)
{
if (!p)
return -ENODEV;
SET(p, 0x300, 0x0012);
SET(p, 0x350, 0x002D);
SET(p, 0x351, 0x0001);
SET(p, 0x352, 0x0000);
SET(p, 0x353, 0x0000);
SET(p, 0x300, 0x0080);
return 0;
}
/****************************************************************************/
/*--------------------------------------------------------------------------*/
/*
* NOTE: THE FOLLOWING IS NOT CHECKED:
* REGISTER 0x0F, WHICH IS INVOLVED IN CHROMINANCE AUTOMATIC GAIN CONTROL.
*/
/*--------------------------------------------------------------------------*/
int check_saa(struct usb_device *p, bool ntsc)
{
int i, ir, rc = 0;
struct saa7113config const *cfg;
if (!p)
return -ENODEV;
cfg = (ntsc) ? saa7113configNTSC : saa7113configPAL;
for (i = 0; cfg[i].reg != 0xFF; i++) {
if (0x0F == cfg[i].reg)
continue;
ir = read_saa(p, cfg[i].reg);
if (ir != cfg[i].set) {
SAY("SAA register 0x%02X has 0x%02X, expected 0x%02X\n",
cfg[i].reg, ir, cfg[i].set);
rc--;
}
}
return (rc < -8) ? rc : 0;
}
/****************************************************************************/
int merit_saa(struct usb_device *p)
{
int rc;
if (!p)
return -ENODEV;
rc = read_saa(p, 0x1F);
return ((0 > rc) || (0x02 & rc)) ? 1 : 0;
}
/****************************************************************************/
int ready_saa(struct usb_device *p)
{
int j, rc, rate;
const int max = 5, marktime = PATIENCE/5;
/*--------------------------------------------------------------------------*/
/*
* RETURNS 0 FOR INTERLACED 50 Hz
* 1 FOR NON-INTERLACED 50 Hz
* 2 FOR INTERLACED 60 Hz
* 3 FOR NON-INTERLACED 60 Hz
*/
/*--------------------------------------------------------------------------*/
if (!p)
return -ENODEV;
j = 0;
while (max > j) {
rc = read_saa(p, 0x1F);
if (0 <= rc) {
if (0 == (0x40 & rc))
break;
if (1 == (0x01 & rc))
break;
}
msleep(marktime);
j++;
}
if (max == j)
return -1;
else {
if (0x20 & rc) {
rate = 2;
JOT(8, "hardware detects 60 Hz\n");
} else {
rate = 0;
JOT(8, "hardware detects 50 Hz\n");
}
if (0x80 & rc)
JOT(8, "hardware detects interlacing\n");
else {
rate++;
JOT(8, "hardware detects no interlacing\n");
}
}
return 0;
}
/****************************************************************************/
/*--------------------------------------------------------------------------*/
/*
* NOTE: THE FOLLOWING ARE NOT CHECKED:
* REGISTERS 0x000, 0x002: FUNCTIONALITY IS NOT KNOWN
* REGISTER 0x100: ACCEPT ALSO (0x80 | stk1160config....[.].set)
*/
/*--------------------------------------------------------------------------*/
int check_stk(struct usb_device *p, bool ntsc)
{
int i, ir;
const struct stk1160config *cfg;
if (!p)
return -ENODEV;
cfg = (ntsc) ? stk1160configNTSC : stk1160configPAL;
for (i = 0; 0xFFF != cfg[i].reg; i++) {
if (0x000 == cfg[i].reg || 0x002 == cfg[i].reg)
continue;
ir = read_stk(p, cfg[i].reg);
if (0x100 == cfg[i].reg) {
if ((ir != (0xFF & cfg[i].set)) &&
(ir != (0x80 | (0xFF & cfg[i].set))) &&
(0xFFFF != cfg[i].set)) {
SAY("STK reg[0x%03X]=0x%02X expected 0x%02X\n",
cfg[i].reg, ir, cfg[i].set);
}
continue;
}
if ((ir != (0xFF & cfg[i].set)) && (0xFFFF != cfg[i].set))
SAY("STK register 0x%03X has 0x%02X,expected 0x%02X\n",
cfg[i].reg, ir, cfg[i].set);
}
return 0;
}
/****************************************************************************/
int read_saa(struct usb_device *p, u16 reg0)
{
u8 igot;
if (!p)
return -ENODEV;
SET(p, 0x208, reg0);
SET(p, 0x200, 0x20);
if (0 != wait_i2c(p))
return -1;
igot = 0;
GET(p, 0x0209, &igot);
return igot;
}
/****************************************************************************/
int read_stk(struct usb_device *p, u32 reg0)
{
u8 igot;
if (!p)
return -ENODEV;
igot = 0;
GET(p, reg0, &igot);
return igot;
}
/****************************************************************************/
/*--------------------------------------------------------------------------*/
/*
* HARDWARE USERSPACE INPUT NUMBER PHYSICAL INPUT DRIVER input VALUE
*
* CVBS+S-VIDEO 0 or 1 CVBS 1
* FOUR-CVBS 0 or 1 CVBS1 1
* FOUR-CVBS 2 CVBS2 2
* FOUR-CVBS 3 CVBS3 3
* FOUR-CVBS 4 CVBS4 4
* CVBS+S-VIDEO 5 S-VIDEO 5
*
* WHEN 5==input THE ARGUMENT mode MUST ALSO BE SUPPLIED:
*
* mode 7 => GAIN TO BE SET EXPLICITLY USING REGISTER 0x05 (UNTESTED)
* mode 9 => USE AUTOMATIC GAIN CONTROL (DEFAULT)
*
*/
/*---------------------------------------------------------------------------*/
int
select_input(struct usb_device *p, int input, int mode)
{
int ir;
if (!p)
return -ENODEV;
stop_100(p);
switch (input) {
case 0:
case 1: {
if (0 != write_saa(p, 0x02, 0x80))
SAY("ERROR: failed to set SAA register 0x02 "
"for input %i\n", input);
SET(p, 0x0000, 0x0098);
SET(p, 0x0002, 0x0078);
break;
}
case 2: {
if (0 != write_saa(p, 0x02, 0x80))
SAY("ERROR: failed to set SAA register 0x02 "
"for input %i\n", input);
SET(p, 0x0000, 0x0090);
SET(p, 0x0002, 0x0078);
break;
}
case 3: {
if (0 != write_saa(p, 0x02, 0x80))
SAY("ERROR: failed to set SAA register 0x02 "
" for input %i\n", input);
SET(p, 0x0000, 0x0088);
SET(p, 0x0002, 0x0078);
break;
}
case 4: {
if (0 != write_saa(p, 0x02, 0x80)) {
SAY("ERROR: failed to set SAA register 0x02 "
"for input %i\n", input);
}
SET(p, 0x0000, 0x0080);
SET(p, 0x0002, 0x0078);
break;
}
case 5: {
if (9 != mode)
mode = 7;
switch (mode) {
case 7: {
if (0 != write_saa(p, 0x02, 0x87))
SAY("ERROR: failed to set SAA register 0x02 "
"for input %i\n", input);
if (0 != write_saa(p, 0x05, 0xFF))
SAY("ERROR: failed to set SAA register 0x05 "
"for input %i\n", input);
break;
}
case 9: {
if (0 != write_saa(p, 0x02, 0x89))
SAY("ERROR: failed to set SAA register 0x02 "
"for input %i\n", input);
if (0 != write_saa(p, 0x05, 0x00))
SAY("ERROR: failed to set SAA register 0x05 "
"for input %i\n", input);
break;
}
default:
SAY("MISTAKE: bad mode: %i\n", mode);
return -1;
}
if (0 != write_saa(p, 0x04, 0x00))
SAY("ERROR: failed to set SAA register 0x04 "
"for input %i\n", input);
if (0 != write_saa(p, 0x09, 0x80))
SAY("ERROR: failed to set SAA register 0x09 "
"for input %i\n", input);
SET(p, 0x0002, 0x0093);
break;
}
default:
SAY("ERROR: bad input: %i\n", input);
return -1;
}
ir = read_stk(p, 0x00);
JOT(8, "STK register 0x00 has 0x%02X\n", ir);
ir = read_saa(p, 0x02);
JOT(8, "SAA register 0x02 has 0x%02X\n", ir);
start_100(p);
return 0;
}
/****************************************************************************/
int set_resolution(struct usb_device *p,
u16 set0, u16 set1, u16 set2, u16 set3)
{
u16 u0x0111, u0x0113, u0x0115, u0x0117;
if (!p)
return -ENODEV;
u0x0111 = ((0xFF00 & set0) >> 8);
u0x0113 = ((0xFF00 & set1) >> 8);
u0x0115 = ((0xFF00 & set2) >> 8);
u0x0117 = ((0xFF00 & set3) >> 8);
SET(p, 0x0110, (0x00FF & set0));
SET(p, 0x0111, u0x0111);
SET(p, 0x0112, (0x00FF & set1));
SET(p, 0x0113, u0x0113);
SET(p, 0x0114, (0x00FF & set2));
SET(p, 0x0115, u0x0115);
SET(p, 0x0116, (0x00FF & set3));
SET(p, 0x0117, u0x0117);
return 0;
}
/****************************************************************************/
int start_100(struct usb_device *p)
{
u16 get116, get117, get0;
u8 igot116, igot117, igot;
if (!p)
return -ENODEV;
GET(p, 0x0116, &igot116);
get116 = igot116;
GET(p, 0x0117, &igot117);
get117 = igot117;
SET(p, 0x0116, 0x0000);
SET(p, 0x0117, 0x0000);
GET(p, 0x0100, &igot);
get0 = igot;
SET(p, 0x0100, (0x80 | get0));
SET(p, 0x0116, get116);
SET(p, 0x0117, get117);
return 0;
}
/****************************************************************************/
int stop_100(struct usb_device *p)
{
u16 get0;
u8 igot;
if (!p)
return -ENODEV;
GET(p, 0x0100, &igot);
get0 = igot;
SET(p, 0x0100, (0x7F & get0));
return 0;
}
/****************************************************************************/
/****************************************************************************/
/*****************************************************************************/
int wakeup_device(struct usb_device *pusb_device)
{
if (!pusb_device)
return -ENODEV;
return usb_control_msg(pusb_device, usb_sndctrlpipe(pusb_device, 0),
USB_REQ_SET_FEATURE,
USB_DIR_OUT | USB_TYPE_STANDARD | USB_RECIP_DEVICE,
USB_DEVICE_REMOTE_WAKEUP,
0, NULL, 0, 50000);
}
/*****************************************************************************/
int
audio_setup(struct easycap *peasycap)
{
struct usb_device *pusb_device;
u8 buffer[1];
int rc, id1, id2;
/*---------------------------------------------------------------------------*/
/*
* IMPORTANT:
* THE MESSAGE OF TYPE (USB_DIR_OUT | USB_TYPE_CLASS | USB_RECIP_INTERFACE)
* CAUSES MUTING IF THE VALUE 0x0100 IS SENT.
* TO ENABLE AUDIO THE VALUE 0x0200 MUST BE SENT.
*/
/*---------------------------------------------------------------------------*/
const u8 request = 0x01;
const u8 requesttype = USB_DIR_OUT |
USB_TYPE_CLASS |
USB_RECIP_INTERFACE;
const u16 value_unmute = 0x0200;
const u16 index = 0x0301;
const u16 length = 1;
if (!peasycap)
return -EFAULT;
pusb_device = peasycap->pusb_device;
if (!pusb_device)
return -ENODEV;
JOM(8, "%02X %02X %02X %02X %02X %02X %02X %02X\n",
requesttype, request,
(0x00FF & value_unmute),
(0xFF00 & value_unmute) >> 8,
(0x00FF & index),
(0xFF00 & index) >> 8,
(0x00FF & length),
(0xFF00 & length) >> 8);
buffer[0] = 0x01;
rc = usb_control_msg(pusb_device, usb_sndctrlpipe(pusb_device, 0),
request, requesttype, value_unmute,
index, &buffer[0], length, 50000);
JOT(8, "0x%02X=buffer\n", buffer[0]);
if (rc != (int)length) {
switch (rc) {
case -EPIPE:
SAY("usb_control_msg returned -EPIPE\n");
break;
default:
SAY("ERROR: usb_control_msg returned %i\n", rc);
break;
}
}
/*--------------------------------------------------------------------------*/
/*
* REGISTER 500: SETTING VALUE TO 0x0094 RESETS AUDIO CONFIGURATION ???
* REGISTER 506: ANALOGUE AUDIO ATTENTUATOR ???
* FOR THE CVBS+S-VIDEO HARDWARE:
* SETTING VALUE TO 0x0000 GIVES QUIET SOUND.
* THE UPPER BYTE SEEMS TO HAVE NO EFFECT.
* FOR THE FOUR-CVBS HARDWARE:
* SETTING VALUE TO 0x0000 SEEMS TO HAVE NO EFFECT.
* REGISTER 507: ANALOGUE AUDIO PREAMPLIFIER ON/OFF ???
* FOR THE CVBS-S-VIDEO HARDWARE:
* SETTING VALUE TO 0x0001 GIVES VERY LOUD, DISTORTED SOUND.
* THE UPPER BYTE SEEMS TO HAVE NO EFFECT.
*/
/*--------------------------------------------------------------------------*/
SET(pusb_device, 0x0500, 0x0094);
SET(pusb_device, 0x0500, 0x008C);
SET(pusb_device, 0x0506, 0x0001);
SET(pusb_device, 0x0507, 0x0000);
id1 = read_vt(pusb_device, 0x007C);
id2 = read_vt(pusb_device, 0x007E);
SAM("0x%04X:0x%04X is audio vendor id\n", id1, id2);
/*---------------------------------------------------------------------------*/
/*
* SELECT AUDIO SOURCE "LINE IN" AND SET THE AUDIO GAIN.
*/
/*---------------------------------------------------------------------------*/
if (0 != audio_gainset(pusb_device, peasycap->gain))
SAY("ERROR: audio_gainset() failed\n");
check_vt(pusb_device);
return 0;
}
/*****************************************************************************/
int check_vt(struct usb_device *pusb_device)
{
int igot;
if (!pusb_device)
return -ENODEV;
igot = read_vt(pusb_device, 0x0002);
if (0 > igot)
SAY("ERROR: failed to read VT1612A register 0x02\n");
if (0x8000 & igot)
SAY("register 0x%02X muted\n", 0x02);
igot = read_vt(pusb_device, 0x000E);
if (0 > igot)
SAY("ERROR: failed to read VT1612A register 0x0E\n");
if (0x8000 & igot)
SAY("register 0x%02X muted\n", 0x0E);
igot = read_vt(pusb_device, 0x0010);
if (0 > igot)
SAY("ERROR: failed to read VT1612A register 0x10\n");
if (0x8000 & igot)
SAY("register 0x%02X muted\n", 0x10);
igot = read_vt(pusb_device, 0x0012);
if (0 > igot)
SAY("ERROR: failed to read VT1612A register 0x12\n");
if (0x8000 & igot)
SAY("register 0x%02X muted\n", 0x12);
igot = read_vt(pusb_device, 0x0014);
if (0 > igot)
SAY("ERROR: failed to read VT1612A register 0x14\n");
if (0x8000 & igot)
SAY("register 0x%02X muted\n", 0x14);
igot = read_vt(pusb_device, 0x0016);
if (0 > igot)
SAY("ERROR: failed to read VT1612A register 0x16\n");
if (0x8000 & igot)
SAY("register 0x%02X muted\n", 0x16);
igot = read_vt(pusb_device, 0x0018);
if (0 > igot)
SAY("ERROR: failed to read VT1612A register 0x18\n");
if (0x8000 & igot)
SAY("register 0x%02X muted\n", 0x18);
igot = read_vt(pusb_device, 0x001C);
if (0 > igot)
SAY("ERROR: failed to read VT1612A register 0x1C\n");
if (0x8000 & igot)
SAY("register 0x%02X muted\n", 0x1C);
return 0;
}
/*****************************************************************************/
/*---------------------------------------------------------------------------*/
/* NOTE: THIS DOES INCREASE THE VOLUME DRAMATICALLY:
* audio_gainset(pusb_device, 0x000F);
*
* loud dB register 0x10 dB register 0x1C dB total
* 0 -34.5 0 -34.5
* .. .... . ....
* 15 10.5 0 10.5
* 16 12.0 0 12.0
* 17 12.0 1.5 13.5
* .. .... .... ....
* 31 12.0 22.5 34.5
*/
/*---------------------------------------------------------------------------*/
int audio_gainset(struct usb_device *pusb_device, s8 loud)
{
int igot;
u8 tmp;
u16 mute;
if (!pusb_device)
return -ENODEV;
if (0 > loud)
loud = 0;
if (31 < loud)
loud = 31;
write_vt(pusb_device, 0x0002, 0x8000);
/*---------------------------------------------------------------------------*/
igot = read_vt(pusb_device, 0x000E);
if (0 > igot) {
SAY("ERROR: failed to read VT1612A register 0x0E\n");
mute = 0x0000;
} else
mute = 0x8000 & ((unsigned int)igot);
mute = 0;
if (16 > loud)
tmp = 0x01 | (0x001F & (((u8)(15 - loud)) << 1));
else
tmp = 0;
JOT(8, "0x%04X=(mute|tmp) for VT1612A register 0x0E\n", mute | tmp);
write_vt(pusb_device, 0x000E, (mute | tmp));
/*---------------------------------------------------------------------------*/
igot = read_vt(pusb_device, 0x0010);
if (0 > igot) {
SAY("ERROR: failed to read VT1612A register 0x10\n");
mute = 0x0000;
} else
mute = 0x8000 & ((unsigned int)igot);
mute = 0;
JOT(8, "0x%04X=(mute|tmp|(tmp<<8)) for VT1612A register 0x10,...0x18\n",
mute | tmp | (tmp << 8));
write_vt(pusb_device, 0x0010, (mute | tmp | (tmp << 8)));
write_vt(pusb_device, 0x0012, (mute | tmp | (tmp << 8)));
write_vt(pusb_device, 0x0014, (mute | tmp | (tmp << 8)));
write_vt(pusb_device, 0x0016, (mute | tmp | (tmp << 8)));
write_vt(pusb_device, 0x0018, (mute | tmp | (tmp << 8)));
/*---------------------------------------------------------------------------*/
igot = read_vt(pusb_device, 0x001C);
if (0 > igot) {
SAY("ERROR: failed to read VT1612A register 0x1C\n");
mute = 0x0000;
} else
mute = 0x8000 & ((unsigned int)igot);
mute = 0;
if (16 <= loud)
tmp = 0x000F & (u8)(loud - 16);
else
tmp = 0;
JOT(8, "0x%04X=(mute|tmp|(tmp<<8)) for VT1612A register 0x1C\n",
mute | tmp | (tmp << 8));
write_vt(pusb_device, 0x001C, (mute | tmp | (tmp << 8)));
write_vt(pusb_device, 0x001A, 0x0404);
write_vt(pusb_device, 0x0002, 0x0000);
return 0;
}
/*****************************************************************************/
int audio_gainget(struct usb_device *pusb_device)
{
int igot;
if (!pusb_device)
return -ENODEV;
igot = read_vt(pusb_device, 0x001C);
if (0 > igot)
SAY("ERROR: failed to read VT1612A register 0x1C\n");
return igot;
}
/*****************************************************************************/