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libqhy_5ii.c
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// Copyright (c) 2016 CloudMakers, s. r. o.
// All rights reserved.
//
// You can use this software under the terms of 'INDIGO Astronomy
// open-source license' (see LICENSE.md).
//
// THIS SOFTWARE IS PROVIDED BY THE AUTHORS 'AS IS' AND ANY EXPRESS
// OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
// WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
// ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
// DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
// DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
// GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
// WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
// NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
// SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#define _GNU_SOURCE
#include <stdlib.h>
#include <stdbool.h>
#include <stdarg.h>
#include <string.h>
#include <unistd.h>
#include <math.h>
#include <libqhy/libqhy.h>
#include "libqhy_base.h"
#include "libqhy_5ii.h"
//static int set_resolution(libqhy_device_context *context, unsigned frame_width, unsigned frame_height);
//static int set_exposure_time(libqhy_device_context *context, double time);
//static int set_usb_speed(libqhy_device_context *context);
//static int set_usb_traffic(libqhy_device_context *context);
static int write_regs(libqhy_device_context *context, unsigned short data[][3]) {
libusb_device_handle *handle = context->handle;
int rc = 0;
int delay;
for (int i = 0; rc >= 0 && data[i][0] != 0; i++) {
rc = libqhy_i2c_write(handle, data[i][0], data[i][1]);
if ((delay = data[i][2]) != 0)
usleep(1000 * delay);
}
return rc;
}
static int init_regs(libqhy_device_context *context) {
switch (context->type) {
case QHY_5LII:
return write_regs(context, libqhy_5lii_init);
case QHY_5RII:
return write_regs(context, libqhy_5rii_init);
default:
return 0;
}
}
static int set_ppl(libqhy_device_context *context, int ppl) {
libusb_device_handle *handle = context->handle;
int rc = 0;
rc = rc < 0 ? rc : libqhy_i2c_write(handle, 0x302A, 14);
rc = rc < 0 ? rc : libqhy_i2c_write(handle, 0x302C, 1);
rc = rc < 0 ? rc : libqhy_i2c_write(handle, 0x302E, 3);
context->ppl_ratio = 1;
if (ppl == 0) {
rc = rc < 0 ? rc : libqhy_i2c_write(handle, 0x3030, 42);
} else if (ppl == 1) {
rc = rc < 0 ? rc : libqhy_i2c_write(handle, 0x3030, 65);
if (!context->long_time_mode)
context->ppl_ratio = 65.0 / 14.0 / 3.0;
} else if (ppl == 2) {
rc = rc < 0 ? rc : libqhy_i2c_write(handle, 0x3030, 57);
if (!context->long_time_mode)
context->ppl_ratio = 57.0 / 14.0 / 3.0;
}
rc = rc < 0 ? rc : libqhy_i2c_write(handle, 0x3082, 0x0029);
if (context->type == QHY_5LII) {
if (context->long_time_mode)
rc = rc < 0 ? rc : libqhy_i2c_write(handle, 0x30B0, 0x5330);
else
rc = rc < 0 ? rc : libqhy_i2c_write(handle, 0x30B0, 0x1330);
} else {
rc = rc < 0 ? rc : libqhy_i2c_write(handle, 0x30B0, 0x1330);
}
rc = rc < 0 ? rc : libqhy_i2c_write(handle, 0x305e, 0x0020);
rc = rc < 0 ? rc : libqhy_i2c_write(handle, 0x3EE4, 0xD208);
rc = rc < 0 ? rc : libqhy_i2c_write(handle, 0x3064, 0x1802);
return rc;
}
static int set_resolution(libqhy_device_context *context, unsigned frame_width, unsigned frame_height) {
if (context->frame_width == frame_width && context->frame_height == frame_height)
return 0;
libusb_device_handle *handle = context->handle;
int rc = 0;
switch (context->type) {
case QHY_5II:
case QHY_5PII:
case QHY_5TII:
context->frame_width = frame_width;
context->frame_height = frame_height;
if (context->type == QHY_5TII) {
frame_width = (frame_width + 3) / 4 * 4;
frame_height = (frame_height + 3) / 4 * 4;
} else if (context->type == QHY_5II) {
rc = rc < 0 ? rc : libqhy_i2c_write(handle, 0x09, 200);
}
rc = rc < 0 ? rc : libqhy_i2c_write(handle, 0x01, 8 + (frame_height - context->height) / 2);
rc = rc < 0 ? rc : libqhy_i2c_write(handle, 0x02, 16 + (frame_width - context->width) / 2);
rc = rc < 0 ? rc : libqhy_i2c_write(handle, 0x03, frame_height - 1);
rc = rc < 0 ? rc : libqhy_i2c_write(handle, 0x04, frame_width - 1);
rc = rc < 0 ? rc : libqhy_i2c_write(handle, 0x22, 0x00);
rc = rc < 0 ? rc : libqhy_i2c_write(handle, 0x23, 0x00);
break;
case QHY_5LII:
case QHY_5HII: {
unsigned frame_length, line_length;
rc = init_regs(context);
if (frame_width <= 320 && frame_height <= 240) {
frame_width = 320;
frame_height = 240;
frame_length = 266;
line_length = 1388;
rc = rc < 0 ? rc : set_ppl(context, 1);
} else if (frame_width <= 640 && frame_height <= 480) {
frame_width = 640;
frame_height = 480;
frame_length = 506;
line_length = 1388;
rc = rc < 0 ? rc : set_ppl(context, 1);
} else if (frame_width <= 800 && frame_height <= 600) {
frame_width = 800;
frame_height = 600;
frame_length = 626;
line_length = 1388;
rc = rc < 0 ? rc : set_ppl(context, 2);
} else if (frame_width <= 1024 && frame_height <= 768) {
frame_width = 1024;
frame_height = 768;
frame_length = 795;
line_length = 1388;
rc = rc < 0 ? rc : set_ppl(context, 0);
} else {
frame_width = 1280;
frame_height = 960;
frame_length = 990;
line_length = 1650;
rc = rc < 0 ? rc : set_ppl(context, 0);
}
context->frame_width = frame_width;
context->frame_height = frame_height;
int left = 4 + (1280 - frame_width) / 2;
int top = 4 + (960 - frame_height) / 2;
int width = frame_width - 1;
int height = frame_height - 1;
rc = rc < 0 ? rc : libqhy_i2c_write(handle, 0x3002, left);
rc = rc < 0 ? rc : libqhy_i2c_write(handle, 0x3004, top);
rc = rc < 0 ? rc : libqhy_i2c_write(handle, 0x3006, top + height);
rc = rc < 0 ? rc : libqhy_i2c_write(handle, 0x3008, left + width);
rc = rc < 0 ? rc : libqhy_i2c_write(handle, 0x300a, frame_length);
rc = rc < 0 ? rc : libqhy_i2c_write(handle, 0x300c, line_length);
rc = rc < 0 ? rc : libqhy_i2c_write(handle, 0x301A, 0x10DC);
break;
}
case QHY_5RII: {
unsigned reg300A, reg3012;
if (frame_width <= 320 && frame_height <= 240) {
context->frame_width = frame_width = 320;
context->frame_height = frame_height = 240;
reg300A = 0x010d;
reg3012 = 0x005a;
} else if (frame_width <= 640 && frame_height <= 480) {
context->frame_width = frame_width = 640;
context->frame_height = frame_height = 480;
reg300A = 0x01fd;
reg3012 = 0x0038;
} else {
context->frame_width = frame_width = 728;
context->frame_height = frame_height = 512;
reg300A = 0x021d;
reg3012 = 0x0033;
}
rc = rc < 0 ? rc : libqhy_i2c_write(handle, 0x301A,0x10d0);
usleep(1000);
rc = rc < 0 ? rc : libqhy_i2c_write(handle, 0x3002, 0x0000);
rc = rc < 0 ? rc : libqhy_i2c_write(handle, 0x3004, 0x0000);
rc = rc < 0 ? rc : libqhy_i2c_write(handle, 0x300A, reg300A);
rc = rc < 0 ? rc : libqhy_i2c_write(handle, 0x3006, frame_width - 1);
rc = rc < 0 ? rc : libqhy_i2c_write(handle, 0x3008, frame_height - 1);
rc = rc < 0 ? rc : libqhy_i2c_write(handle, 0x300c, 0x01d5);
rc = rc < 0 ? rc : libqhy_i2c_read(handle, 0x300c, &context->reg300c);
rc = rc < 0 ? rc : libqhy_i2c_write(handle, 0x3012, reg3012);
rc = rc < 0 ? rc : libqhy_i2c_write(handle, 0x3012, reg3012);
usleep(4000);
rc = rc < 0 ? rc : libqhy_i2c_write(handle, 0x301A,0x10d0);
usleep(1000);
rc = rc < 0 ? rc : libqhy_i2c_write(handle, 0x301A,0x10d4);
break;
}
default:
break;
}
return rc;
}
static int set_bits_per_pixel(libqhy_device_context *context, unsigned bits_per_pixel) {
unsigned char data[1] = { bits_per_pixel == 16 ? 1 : 0 };
context->frame_bits_per_pixel = bits_per_pixel;
int rc = libusb_control_transfer(context->handle, REQUEST_WRITE, 0xcd, 0, 0, data, 1, 3000);
QHY_DEBUG(qhy_log("libusb_control_transfer -> %s", rc < 0 ? libusb_error_name(rc) : "OK"));
return rc;
}
static int set_exposure_time(libqhy_device_context *context, unsigned time) {
libusb_device_handle *handle = context->handle;
int rc = 0;
switch (context->type) {
case QHY_5II: {
double cmosclk;
if (context->usb_speed == 2)
cmosclk = 48;
else if (context->usb_speed == 1)
cmosclk = 24;
else
cmosclk = 12;
uint16_t reg04, reg05, reg0C, reg09;
rc = rc < 0 ? rc : libqhy_i2c_read(handle, 0x04, ®04);
rc = rc < 0 ? rc : libqhy_i2c_read(handle, 0x05, ®05);
rc = rc < 0 ? rc : libqhy_i2c_read(handle, 0x09, ®09);
rc = rc < 0 ? rc : libqhy_i2c_read(handle, 0x0c, ®0C);
double pixelPeriod = 1.0 / cmosclk;
double a = reg04 + 1;
double p1 = 242;
double p2 = 2 + reg05 - 19;
double q = p1 + p2;
double row_time = (a + q) * pixelPeriod;
double max_short_time = (15000 * row_time - 180 * pixelPeriod - 4 * reg0C * pixelPeriod);
uint8_t data[4];
if (time > max_short_time) {
rc = rc < 0 ? rc : libqhy_i2c_write(handle, 0x09, 15000);
time = time - max_short_time;
data[0] = 0;
data[1] = ((time / 1000) & ~0xff00ffff) >> 16;
data[2] = ((time / 1000) & ~0xffff00ff) >> 8;
data[3] = ((time / 1000) & ~0xffffff00);
rc = rc < 0 ? rc : libusb_control_transfer(handle, REQUEST_WRITE, 0xc1, 0, 0, data, 4, 3000);
QHY_DEBUG(qhy_log("libusb_control_transfer -> %s", rc < 0 ? libusb_error_name(rc) : "OK"));
} else {
data[0] = 0;
data[1] = 0;
data[2] = 0;
data[3] = 0;
rc = rc < 0 ? rc : libusb_control_transfer(handle, REQUEST_WRITE, 0xc1, 0, 0, data, 4, 3000);
QHY_DEBUG(qhy_log("libusb_control_transfer -> %s", rc < 0 ? libusb_error_name(rc) : "OK"));
usleep(10000);
reg09 = (time + 180 * pixelPeriod + 4 * reg0C * pixelPeriod) / row_time;
if (reg09 < 1)
reg09 = 1;
rc = rc < 0 ? rc : libqhy_i2c_write(handle, 0x09, reg09);
}
break;
}
case QHY_5TII:
case QHY_5PII: {
double cmosclk;
if (context->usb_speed == 2)
cmosclk = 48;
else if (context->usb_speed == 1)
cmosclk = 24;
else
cmosclk = 12;
uint16_t reg04, reg05, reg08, reg09, reg0C, reg23, reg22;
rc = rc < 0 ? rc : libqhy_i2c_read(handle, 0x04, ®04);
rc = rc < 0 ? rc : libqhy_i2c_read(handle, 0x05, ®05);
rc = rc < 0 ? rc : libqhy_i2c_read(handle, 0x08, ®08);
rc = rc < 0 ? rc : libqhy_i2c_read(handle, 0x09, ®09);
rc = rc < 0 ? rc : libqhy_i2c_read(handle, 0x0c, ®0C);
rc = rc < 0 ? rc : libqhy_i2c_read(handle, 0x22, ®22);
rc = rc < 0 ? rc : libqhy_i2c_read(handle, 0x23, ®23);
uint16_t reg23_20 = reg23 & ~0xfff8;
uint16_t reg22_54 = (reg22 & ~0xffcf) / 16;
uint16_t reg23_54 = (reg23 & ~0xffcf) / 16;
uint16_t hbmin = 0, max_hb_hbmin, row_time, pixel_period;
if (reg23_54 == 0 && reg22_54 == 0)
hbmin = 450;
if (reg23_54 == 1 && reg22_54 == 0)
hbmin = 430;
if (reg23_54 == 2 && reg22_54 == 0)
hbmin = 420;
if (reg23_54 == 0 && reg22_54 == 1)
hbmin = 796;
if (reg23_54 == 1 && reg22_54 == 1)
hbmin = 776;
if (reg23_54 == 2 && reg22_54 == 1)
hbmin = 766;
if (reg23_54 == 0 && reg22_54 == 2)
hbmin = 1488;
if (reg23_54 == 1 && reg22_54 == 2)
hbmin = 1468;
if (reg23_54 == 2 && reg22_54 == 2)
hbmin = 1458;
double hb = reg05 + 1;
double w = (reg04 + 1) / (reg23_20 + 1);
if (hbmin > hb)
max_hb_hbmin = hbmin;
else
max_hb_hbmin = hb;
double so = 208 * (reg22_54 + 1) + 98 + reg0C - 94;
if (w / 2 + max_hb_hbmin > 41 + 186 * (reg22_54 + 1) + 99)
row_time = 2 * pixel_period * (w / 2 + max_hb_hbmin);
else
row_time = 41 + 186 * (reg22_54 + 1) + 99;
double max_short_time = 15000 * row_time - so * 2 * pixel_period;
uint8_t data[4] = { 0, 0, 0, 0 };
if (time > max_short_time) {
rc = rc < 0 ? rc : libqhy_i2c_write(handle, 0x09, 15000);
data[0] = 0;
data[1] = ((time / 1000) & ~0xff00ffff) >> 16;
data[2] = ((time / 1000) & ~0xffff00ff) >> 8;
data[3] = ((time / 1000) & ~0xffffff00);
rc = rc < 0 ? rc : libusb_control_transfer(handle, REQUEST_WRITE, 0xc1, 0, 0, data, 4, 3000);
QHY_DEBUG(qhy_log("libusb_control_transfer -> %s", rc < 0 ? libusb_error_name(rc) : "OK"));
reg09 = 15000;
} else {
rc = rc < 0 ? rc : libusb_control_transfer(handle, REQUEST_WRITE, 0xc1, 0, 0, data, 4, 3000);
QHY_DEBUG(qhy_log("libusb_control_transfer -> %s", rc < 0 ? libusb_error_name(rc) : "OK"));
usleep(100000);
reg09 = (time + so * 2 * pixel_period) / row_time;
if (reg09 < 1)
reg09 = 1;
rc = rc < 0 ? rc : libqhy_i2c_write(handle, 0x09, reg09);
}
break;
}
case QHY_5LII:
case QHY_5HII: {
double cmosclk;
uint16_t reg300C, reg3012;
if (context->usb_speed == 2)
cmosclk = 48;
else if (context->usb_speed == 1)
cmosclk = 24;
else
cmosclk = 12;
uint8_t data[4] = { 0, 0, 0, 0 };
rc = rc < 0 ? rc : libusb_control_transfer(handle, REQUEST_WRITE, 0xc1, 0, 0, data, 4, 3000);
QHY_DEBUG(qhy_log("libusb_control_transfer -> %s", rc < 0 ? libusb_error_name(rc) : "OK"));
usleep(10000);
double pixelPeriod = 1 / cmosclk; // unit: us
rc = rc < 0 ? rc : libqhy_i2c_read(handle, 0x300C, ®300C);
usleep(1000);
if(reg300C == 0) {
rc = rc < 0 ? rc : libqhy_i2c_read(handle, 0x300C, ®300C);
usleep(1000);
rc = rc < 0 ? rc : libqhy_i2c_read(handle, 0x300C, ®300C);
usleep(1000);
rc = rc < 0 ? rc : libqhy_i2c_read(handle, 0x300C, ®300C);
}
double row_time = reg300C * pixelPeriod / context->ppl_ratio;
double max_short_time = 65000 * row_time;
if (time > max_short_time) {
context->long_time_mode = true;
libqhy_i2c_write(handle, 0x3012,65000);
usleep(1000);
time = time - max_short_time;
data[0] = 0;
data[1] = (uint8_t)(((time / 1000) & ~0xff00ffff) >> 16);
data[2] = (uint8_t)(((time / 1000) & ~0xffff00ff) >> 8);
data[3] = (uint8_t)((time / 1000) & ~0xffffff00);
rc = rc < 0 ? rc : libusb_control_transfer(handle, REQUEST_WRITE, 0xc1, 0, 0, data, 4, 3000);
QHY_DEBUG(qhy_log("libusb_control_transfer [%d] -> %s", __LINE__, rc < 0 ? libusb_error_name(rc) : "OK"));
time = time + max_short_time;
reg3012 = 65000;
} else {
context->long_time_mode = false;
rc = rc < 0 ? rc : libusb_control_transfer(handle, REQUEST_WRITE, 0xc1, 0, 0, data, 4, 3000);
QHY_DEBUG(qhy_log("libusb_control_transfer -> %s", rc < 0 ? libusb_error_name(rc) : "OK"));
usleep(10000);
reg3012 = (uint16_t)(time / row_time);
if(reg3012 < 1)
reg3012 = 1;
rc = rc < 0 ? rc : libqhy_i2c_write(handle, 0x3012, reg3012);
usleep(1000);
time = (uint32_t)(reg3012 * row_time);
}
break;
}
case QHY_5RII: {
uint8_t data[4] = { 0, 0, 0, 0 };
rc = rc < 0 ? rc : libusb_control_transfer(handle, REQUEST_WRITE, 0xc1, 0, 0, data, 4, 3000);
QHY_DEBUG(qhy_log("libusb_control_transfer -> %s", rc < 0 ? libusb_error_name(rc) : "OK"));
double cmosclk;
if (context->frame_bits_per_pixel == 8) {
if(context->usb_speed == 1)
cmosclk = 12;
else
cmosclk = 24;
} else {
if(context->usb_speed == 0)
cmosclk = 6;
else
cmosclk = 12;
}
double pixelPeriod = 1 / cmosclk / 2;
uint16_t reg300C = 0, reg3012;
rc = rc < 0 ? rc : libqhy_i2c_read(handle, 0x300C, ®300C);
rc = rc < 0 ? rc : libqhy_i2c_read(handle, 0x300C, ®300C);
rc = rc < 0 ? rc : libqhy_i2c_read(handle, 0x300C, ®300C);
double row_time = reg300C * pixelPeriod;
double max_short_time = 65000 * row_time;
if (time > max_short_time) {
rc = rc < 0 ? rc : libqhy_i2c_write(handle, 0xC840, 65000);
usleep(10000);
rc = rc < 0 ? rc : libqhy_i2c_write(handle, 0xC842, 0xFFFF);
time = time - max_short_time - pixelPeriod * 1.0 * 0xFFFF;
data[0] = 0;
data[1] = (uint8_t)(((time / 1000) & ~0xff00ffff) >> 16);
data[2] = (uint8_t)(((time / 1000) & ~0xffff00ff) >> 8);
data[3] = (uint8_t)((time / 1000) & ~0xffffff00);
rc = rc < 0 ? rc : libusb_control_transfer(handle, REQUEST_WRITE, 0xc1, 0, 0, data, 4, 3000);
QHY_DEBUG(qhy_log("libusb_control_transfer -> %s", rc < 0 ? libusb_error_name(rc) : "OK"));
reg3012 = 65000;
} else {
reg3012 = (uint16_t)(time / row_time);
if (reg3012 < 1)
reg3012 = 1;
rc = rc < 0 ? rc : libqhy_i2c_write(handle, 0xC840, reg3012);
usleep(10000);
rc = rc < 0 ? rc : libqhy_i2c_write(handle, 0xC842, 0xFFFF);
}
break;
}
default:
break;
}
return rc;
}
static int set_usb_speed(libqhy_device_context *context, int speed) {
libusb_device_handle *handle = context->handle;
int rc = 0;
uint8_t data[1];
switch (context->type) {
case QHY_5II:
case QHY_5LII:
case QHY_5PII:
case QHY_5HII:
case QHY_5TII:
if (context->frame_bits_per_pixel == 8)
data[0] = context->usb_speed = speed;
else {
if(speed >= 1)
data[0] = context->usb_speed = 1;
else
data[0] = context->usb_speed = 0;
}
rc = rc < 0 ? rc : libusb_control_transfer(handle, REQUEST_WRITE, 0xc8, 0, 0, data, 1, 3000);
QHY_DEBUG(qhy_log("libusb_control_transfer -> %s", rc < 0 ? libusb_error_name(rc) : "OK"));
rc = rc < 0 ? rc : set_exposure_time(context, context->exposure_time);
break;
case QHY_5RII:
if (context->frame_bits_per_pixel == 8) {
if(speed <= 1)
data[0] = context->usb_speed = 1;
else
data[0] = context->usb_speed = 2;
} else {
if(speed >= 1)
data[0] = context->usb_speed = 1;
else
data[0] = context->usb_speed = 0;
}
rc = rc < 0 ? rc : libusb_control_transfer(handle, REQUEST_WRITE, 0xc9, 0, 0, data, 1, 3000);
QHY_DEBUG(qhy_log("libusb_control_transfer -> %s", rc < 0 ? libusb_error_name(rc) : "OK"));
break;
default:
break;
}
return rc;
}
static int set_usb_traffic(libqhy_device_context *context) {
libusb_device_handle *handle = context->handle;
int rc = 0;
switch (context->type) {
case QHY_5II:
rc = rc < 0 ? rc : set_exposure_time(context, 1000);
rc = rc < 0 ? rc : libqhy_i2c_write(handle, 0x0005, 9 + context->usb_traffic * 50);
rc = rc < 0 ? rc : set_exposure_time(context, context->exposure_time);
break;
case QHY_5TII:
case QHY_5PII:
rc = rc < 0 ? rc : libqhy_i2c_write(handle, 0x0005, 346 + 64 + 70 * context->usb_traffic - 1);
rc = rc < 0 ? rc : libqhy_i2c_write(handle, 0x0006, 26 - 1);
break;
case QHY_5LII:
case QHY_5HII:
rc = rc < 0 ? rc : set_exposure_time(context, 1000);
rc = rc < 0 ? rc : libqhy_i2c_write(handle, 0x300c, 1650 + context->usb_traffic * 50);
rc = rc < 0 ? rc : set_exposure_time(context, context->exposure_time);
break;
case QHY_5RII:
rc = rc < 0 ? rc : libqhy_i2c_write(handle, 0x300c, context-> reg300c + context->usb_traffic * 50);
break;
default:
break;
}
return rc;
}
static int set_offset(libqhy_device_context *context) {
libusb_device_handle *handle = context->handle;
int rc = 0;
switch (context->type) {
case QHY_5RII:
rc = rc < 0 ? rc : libqhy_i2c_write(handle, 0x301e, context->offset);
break;
default:
break;
}
return rc;
}
static int set_gain(libqhy_device_context *context, double gain) {
libusb_device_handle *handle = context->handle;
context->gain = gain;
int rc = 0;
switch (context->type) {
case QHY_5II: {
int i = gain / 100 * 72;
rc = rc < 0 ? rc : libqhy_i2c_write(handle, 0x35, libqhy_5ii_gain[i]);
break;
}
case QHY_5TII: {
double RG = 1, BG = 1;
gain = 1260 * gain / 1000;
if (gain <= 7.875 * 2.25) {
uint32_t a = 0;
uint32_t b = gain * 8 / 2.25;
uint32_t c = 10;
rc = rc < 0 ? rc : libqhy_i2c_write(handle, 0x2b, b + a*64 + c*256);
rc = rc < 0 ? rc : libqhy_i2c_write(handle, 0x2e, b + a*64 + c*256);
c = (2.25 * RG - 1) * 8;
rc = rc < 0 ? rc : libqhy_i2c_write(handle, 0x2d, b + a*64 + c*256);
c = (2.25 * BG - 1) * 8;
rc = rc < 0 ? rc : libqhy_i2c_write(handle, 0x2c, b + a*64 + c*256);
} else if (gain <= 11.75 * 2.25) {
uint32_t a = 1;
uint32_t b = gain * 4 / 2.25;
uint32_t c = 10;
rc = rc < 0 ? rc : libqhy_i2c_write(handle, 0x2b, b + a*64 + c*256);
rc = rc < 0 ? rc : libqhy_i2c_write(handle, 0x2e, b + a*64 + c*256);
c = (2.25 * RG - 1) * 8;
rc = rc < 0 ? rc : libqhy_i2c_write(handle, 0x2d, b + a*64 + c*256);
c = (2.25 * BG - 1) * 8;
rc = rc < 0 ? rc : libqhy_i2c_write(handle, 0x2c, b + a*64 + c*256);
} else {
uint32_t a = 1;
uint32_t b = 31;
uint32_t c = (4 * gain / b - 1) * 8;
rc = rc < 0 ? rc : libqhy_i2c_write(handle, 0x2b, b + a*64 + c*256);
rc = rc < 0 ? rc : libqhy_i2c_write(handle, 0x2e, b + a*64 + c*256);
b = 31 * RG;
rc = rc < 0 ? rc : libqhy_i2c_write(handle, 0x2d, b + a*64 + c*256);
b = 31 * BG;
rc = rc < 0 ? rc : libqhy_i2c_write(handle, 0x2c, b + a*64 + c*256);
}
break;
}
case QHY_5PII: {
int i = gain / 100 * 65;
rc = rc < 0 ? rc : libqhy_i2c_write(handle, 0x35, libqhy_5pii_gain[i]);
break;
}
case QHY_5LII:
case QHY_5HII: {
gain = 1.0348 + context->gain * 38.7652 / 100;
//gain = 79.6 * context->gain / 100.0;
uint16_t reg30B0;
if (context->long_time_mode)
reg30B0 = 0x5330;
else
reg30B0 = 0x1330;
uint16_t base_gain;
double c[8] = { 10, 8, 5, 4, 2.5, 2, 1.25, 1 };
double s[8] = { 0, 0, 0, 0, 0, 0, 0, 0 };
uint32_t a[8] = { 0, 0, 0, 0, 0, 0, 0, 0 };
uint32_t b[8] = { 0, 0, 0, 0, 0, 0, 0, 0 };
double error[8];
for (uint32_t i = 0; i < 8; i++) {
s[i] = gain / c[i];
a[i] = (uint32_t)s[i];
b[i] = (s[i] - a[i]) / 0.03125;
if (a[i] > 3)
a[i] = 10000;
if (a[i] == 0)
a[i] = 10000;
error[i] = fabs((a[i]+b[i] * 0.03125) * c[i] - gain);
}
double min_value = error[0];
uint32_t min_value_position = 0;
for (uint32_t i = 0; i < 8; i++) {
if (min_value > error[i]) {
min_value = error[i];
min_value_position = i;
}
}
uint32_t aa = 0, bb = 0, cc = 0;
double dd = 0, ee = 0;
aa = a[min_value_position];
bb = b[min_value_position];
if (min_value_position == 0) {
cc = 8;
dd = 1.25;
rc = rc < 0 ? rc : libqhy_i2c_write(handle, 0x30B0, (reg30B0 &~0x0030) + 0x30);
rc = rc < 0 ? rc : libqhy_i2c_write(handle, 0x3EE4, 0XD308);
} else if (min_value_position == 1) {
cc = 8;
dd = 1;
rc = rc < 0 ? rc : libqhy_i2c_write(handle, 0x30B0, (reg30B0 &~0x0030) + 0x30);
rc = rc < 0 ? rc : libqhy_i2c_write(handle, 0x3EE4, 0XD208);
} else if (min_value_position == 2) {
cc = 4;
dd = 1.25;
rc = rc < 0 ? rc : libqhy_i2c_write(handle, 0x30B0, (reg30B0 &~0x0030) + 0x20);
rc = rc < 0 ? rc : libqhy_i2c_write(handle, 0x3EE4, 0XD308);
} else if (min_value_position == 3) {
cc = 4;
dd = 1;
rc = rc < 0 ? rc : libqhy_i2c_write(handle, 0x30B0, (reg30B0 &~0x0030) + 0x20);
rc = rc < 0 ? rc : libqhy_i2c_write(handle, 0x3EE4, 0XD208);
} else if (min_value_position == 4) {
cc = 2;
dd = 1.25;
rc = rc < 0 ? rc : libqhy_i2c_write(handle, 0x30B0, (reg30B0 &~0x0030) + 0x10);
rc = rc < 0 ? rc : libqhy_i2c_write(handle, 0x3EE4, 0XD308);
} else if (min_value_position == 5) {
cc = 2;
dd = 1;
rc = rc < 0 ? rc : libqhy_i2c_write(handle, 0x30B0, (reg30B0 &~0x0030) + 0x10);
rc = rc < 0 ? rc : libqhy_i2c_write(handle, 0x3EE4, 0XD208);
} else if (min_value_position == 6) {
cc = 1;
dd = 1.25;
rc = rc < 0 ? rc : libqhy_i2c_write(handle, 0x30B0, (reg30B0 &~0x0030) + 0x00);
rc = rc < 0 ? rc : libqhy_i2c_write(handle, 0x3EE4, 0XD308);
} else if (min_value_position == 7) {
cc = 1;
dd = 1;
rc = rc < 0 ? rc : libqhy_i2c_write(handle, 0x30B0, (reg30B0 &~0x0030) + 0x00);
rc = rc < 0 ? rc : libqhy_i2c_write(handle, 0x3EE4, 0XD208);
}
ee = fabs((aa+bb * 0.03125) * cc * dd - gain);
base_gain = bb + aa * 32;
if (context->is_colour) {
rc = rc < 0 ? rc : libqhy_i2c_write(handle, 0x3058, base_gain);
rc = rc < 0 ? rc : libqhy_i2c_write(handle, 0x305a, base_gain);
rc = rc < 0 ? rc : libqhy_i2c_write(handle, 0x305c, base_gain);
rc = rc < 0 ? rc : libqhy_i2c_write(handle, 0x3056, base_gain);
} else {
rc = rc < 0 ? rc : libqhy_i2c_write(handle, 0x305E, base_gain);
}
break;
}
case QHY_5RII: {
int rgbgainb = 0, rgbgainc = 0;
switch((int)(gain / 100.0 * 9)) {
case 0:
rgbgainb = 0;
rgbgainc = 1;
break;
case 1:
rgbgainb = 1;
rgbgainc = 1;
break;
case 2:
rgbgainb = 2;
rgbgainc = 1;
break;
case 3:
rgbgainb = 3;
rgbgainc = 1;
break;
case 4:
rgbgainb = 3;
rgbgainc = 2;
break;
case 5:
rgbgainb = 3;
rgbgainc = 3;
break;
case 6:
rgbgainb = 3;
rgbgainc = 4;
break;
case 7:
rgbgainb = 3;
rgbgainc = 5;
break;
case 8:
rgbgainb = 3;
rgbgainc = 6;
break;
case 9:
rgbgainb = 3;
rgbgainc = 7;
break;
}
uint32_t tmp = rgbgainc << 12 | rgbgainb << 6;
uint16_t reg0x3058 = 63;
reg0x3058 |= tmp;
rc = rc < 0 ? rc : libqhy_i2c_write(handle, 0x3058, reg0x3058);
uint16_t reg0x305a = 63;
reg0x305a |= tmp;
rc = rc < 0 ? rc : libqhy_i2c_write(handle, 0x305a, reg0x305a);
uint16_t reg0x3056 = 16;
reg0x3056 |= tmp;
rc = rc < 0 ? rc : libqhy_i2c_write(handle, 0x3056, reg0x3056);
uint16_t reg0x305c = 16;
reg0x305c |= tmp;
rc = rc < 0 ? rc : libqhy_i2c_write(handle, 0x305C, reg0x305c);
break;
}
default:
break;
}
return rc;
}
bool libqhy_5ii_init(libqhy_device_context *context) {
libusb_device_handle *handle = context->handle;
context->has_guider_port = true;
context->has_cooler = false;
int rc = 0;
uint8_t data[16] = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
rc = rc < 0 ? rc : libusb_control_transfer(handle, REQUEST_READ, 0xCA, 0, 0x10, data, 16, 2000);
QHY_DEBUG(qhy_log("libusb_control_transfer -> %s", rc < 0 ? libusb_error_name(rc) : "OK"));
if (rc >= 0) {
switch (data[0]) {
case 1:
QHY_DEBUG(qhy_log("*** sub-type: QHY5-II"));
context->is_colour = false;
context->width = 1280;
context->height = 1024;
context->pixel_width = 5.2;
context->pixel_height = 5.2;
context->bits_per_pixel = 16;
context->max_bin_hor = context->max_bin_vert = 1;
context->usb_traffic = 30;
break;
case 2:
QHY_DEBUG(qhy_log("*** sub-type: QHY5T-II"));
context->type = QHY_5TII;
context->is_colour = true;
context->width = 2048;
context->height = 1536;
context->pixel_width = 3.2;
context->pixel_height = 3.2;
context->bits_per_pixel = 8;
context->max_bin_hor = context->max_bin_vert = 1;
context->usb_traffic = 0;
break;
case 5:
QHY_DEBUG(qhy_log("*** sub-type: QHY5P-II"));
context->type = QHY_5PII;
context->is_colour = data[1] == 1;
context->width = 2592;
context->height = 1944;
context->pixel_width = 2.2;
context->pixel_height = 2.2;
context->bits_per_pixel = 16;
context->max_bin_hor = context->max_bin_vert = 1;
context->usb_traffic = 0;
break;
case 6:
QHY_DEBUG(qhy_log("*** sub-type: QHY5L-II"));
context->type = QHY_5LII;
context->is_colour = data[1] == 1;
context->width = 1280;
context->height = 960;
context->pixel_width = 3.75;
context->pixel_height = 3.75;
context->bits_per_pixel = 16;
context->max_bin_hor = context->max_bin_vert = 1;
context->usb_traffic = 100;
break;
case 9:
QHY_DEBUG(qhy_log("*** sub-type: QHY5R-II"));
context->type = QHY_5RII;
context->is_colour = false;
context->width = 728;
context->height = 512;
context->pixel_width = 5.6;
context->pixel_height = 5.6;
context->bits_per_pixel = 16;
context->max_bin_hor = context->max_bin_vert = 1;
context->usb_traffic = 30;
context->offset = 32;
break;
case 22:
QHY_DEBUG(qhy_log("*** sub-type: QHY5H-II"));
context->type = QHY_5HII;
context->is_colour = false;
context->width = 1280;
context->height = 960;
context->pixel_width = 3.75;
context->pixel_height = 3.75;
context->bits_per_pixel = 16;
context->max_bin_hor = context->max_bin_vert = 1;
context->usb_traffic = 30;
break;
}
data[0] = data[1] = data[2] = data[3] = 0;
rc = rc < 0 ? rc : libusb_control_transfer(handle, REQUEST_WRITE, 0xC1, 0, 0, data, 4, 2000);
QHY_DEBUG(qhy_log("libusb_control_transfer -> %s", rc < 0 ? libusb_error_name(rc) : "OK"));
rc = rc < 0 ? rc : libqhy_i2c_write(handle, 0x3012, 1);
rc = rc < 0 ? rc : init_regs(context);
rc = rc < 0 ? rc : set_bits_per_pixel(context, 8);
rc = rc < 0 ? rc : set_usb_speed(context, 0);
rc = rc < 0 ? rc : set_resolution(context, context->width, context->height);
rc = rc < 0 ? rc : set_exposure_time(context, 1000);
rc = rc < 0 ? rc : set_offset(context);
rc = rc < 0 ? rc : set_gain(context, 100);
rc = rc < 0 ? rc : set_usb_traffic(context);
rc = rc < 0 ? rc : set_exposure_time(context, 1000);
}
return rc >= 0;
}
bool libqhy_5ii_get_temperature(libqhy_device_context *context, double *temperature) {
unsigned short sensed = 0, calib1 = 0, calib2 = 0;
libusb_device_handle *handle = context->handle;
pthread_mutex_lock(&context->usb_mutex);
int rc = libqhy_i2c_write(handle, 0x30B4, 0x0011);
rc = rc < 0 ? rc : libqhy_i2c_read(handle, 0x30C6, &calib1);
rc = rc < 0 ? rc : libqhy_i2c_read(handle, 0x30C8, &calib2);
rc = rc < 0 ? rc : libqhy_i2c_write(handle, 0x30B4, 0x0000);
rc = rc < 0 ? rc : libqhy_i2c_read(handle, 0x30B2, &sensed);
pthread_mutex_unlock(&context->usb_mutex);
if (rc >= 0) {
double slope = (70.0 - 55.0)/(calib1 - calib2);
double T0 = (slope * calib1 - 70.0);
*temperature = slope * sensed - T0;
QHY_DEBUG(qhy_log("*** temperature %g", *temperature));
QHY_DEBUG(qhy_log("QHY5II check temperature -> OK"));
return true;
}
QHY_DEBUG(qhy_log("QHY5II check temperature -> Failed"));
return false;
}
bool libqhy_5ii_set_exposure_time(libqhy_device_context *context, double exposure) {
pthread_mutex_lock(&context->usb_mutex);
set_exposure_time(context, context->exposure_time = 1000000 * exposure);
pthread_mutex_unlock(&context->usb_mutex);
return true;
}
bool libqhy_5ii_set_gain(libqhy_device_context *context, double gain) {
pthread_mutex_lock(&context->usb_mutex);
context->gain = gain;
set_gain(context, gain);
pthread_mutex_unlock(&context->usb_mutex);
return true;
}
bool libqhy_5ii_start(libqhy_device_context *context) {
unsigned char data[2] = { 0, 100 };
libusb_device_handle *handle = context->handle;
assert(handle != NULL);
pthread_mutex_lock(&context->usb_mutex);
unsigned exposure_time = (unsigned)context->exposure_time;
int rc = libusb_control_transfer(handle, REQUEST_WRITE, 0xb3, exposure_time & 0xffff, exposure_time >> 16, data, 1, 2000);
QHY_DEBUG(qhy_log("libusb_control_transfer -> %s", rc < 0 ? libusb_error_name(rc) : "OK"));
set_gain(context, context->gain);
pthread_mutex_unlock(&context->usb_mutex);
return rc >= 0;
}
bool libqhy_5ii_read_pixels(libqhy_device_context *context, unsigned short *image) {
libusb_device_handle *handle = context->handle;
int bytes_transfered = 0;
int retry_count = 0;
int curent_position = 0;
int remaining = (context->frame_bits_per_pixel == 8 ? 1 : 2) * context->frame_width * context->frame_height + 5;
unsigned char *buffer = (unsigned char *)image;
int rc = 0;
while (rc >= 0 && remaining > 0) {
rc = libusb_bulk_transfer(handle, DATA_READ_ENDPOINT, buffer + curent_position, remaining, &bytes_transfered, (int)context->exposure_time + 1500);
QHY_DEBUG(qhy_log("libusb_bulk_transfer -> %s (%d)", rc < 0 ? libusb_error_name(rc) : "OK", bytes_transfered));
if (rc < 0) {
if (retry_count > 5) {
QHY_DEBUG(qhy_log("QHY5II read pixels -> Failed (retry count > 5)"));
return false;
}
rc = libusb_clear_halt(handle, DATA_READ_ENDPOINT);
QHY_DEBUG(qhy_log("libusb_clear_halt -> %s", rc < 0 ? libusb_error_name(rc) : "OK"));
retry_count++;
continue;
}
curent_position += bytes_transfered;
remaining -= bytes_transfered;
unsigned char sentinel[4] = { 0xAA, 0x11, 0xCC, 0xEE };
void *sentinel_found = memmem(buffer + curent_position - 5, 4, sentinel, 4);
if (remaining && sentinel_found) {
curent_position = 0;
remaining = context->frame_width * context->frame_height + 5;
QHY_DEBUG(qhy_log("QHY5II read pixels - misaligned frame, skipping"));
continue;
}
if (remaining <= 0 && sentinel_found == NULL) {
if (retry_count > 3) {
QHY_DEBUG(qhy_log("QHY5II read pixels -> Failed (retry count > 3)"));
return false;
}
curent_position = 0;
remaining = context->frame_width * context->frame_height + 5;
retry_count++;
continue;
}
}
return rc >= 0;
}
bool libqhy_5ii_stop(libqhy_device_context *context) {
unsigned char data[4] = { 0, 0, 0, 0 };
libusb_device_handle *handle = context->handle;
pthread_mutex_lock(&context->usb_mutex);
int rc = libusb_control_transfer(handle, REQUEST_WRITE, 0xC1, 0, 0, data, 4, 2000);
pthread_mutex_unlock(&context->usb_mutex);
QHY_DEBUG(qhy_log("libusb_control_transfer -> %s", rc < 0 ? libusb_error_name(rc) : "OK"));
return rc >= 0;
}