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/*
Xceive - xc3028 tuner interface
Copyright (c) 2006 Markus Rechberger <mrechberger@gmail.com>
TODO: - remove em28xx dependency
- add channel locking (requires some more reverse engineering)
- try to get the datasheet from Xceive :)
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include <linux/i2c.h>
#include <linux/usb.h>
#include "compat.h"
#include <linux/videodev.h>
#include "em28xx.h"
#include <linux/firmware.h>
#include <linux/delay.h>
#include <media/tuner.h>
#if LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0)
#include "i2c-compat.h"
#endif
#define XC3028_DEFAULT_FIRMWARE "xceive_xc_3028.fw"
int xceive_set_color(struct i2c_client *c);
/* ---------------------------------------------------------------------- */
int xc3028_probe(struct i2c_client *c)
{
printk("xc3028: probe function unknown\n");
return -1;
}
static void xc3028_set_tv_freq(struct i2c_client *c, unsigned int freq){
/*
the frequency is just shifted and there's a 1:1 relation for all frequencies
E11 is Das Erste in Germany/Ulm all other channels match their frequency too
*/
unsigned char chanbuf[4];
freq<<=2;
chanbuf[0]=0;
chanbuf[1]=0;
chanbuf[2]=(freq&0xff00)>>8;
chanbuf[3]=freq&0x00ff;
i2c_master_send(c,"\xa0\x00\x00\x00",4);
i2c_master_send(c,"\x1e\x1f\x13\x87\x18\x02\x93\x91\x44\x86\x96\x8c",12);
i2c_master_send(c,"\x00\x8c",2);
i2c_master_send(c,"\x80\x02\x00\x00",4);
i2c_master_send(c,chanbuf,4);
}
int xc3028_init(struct i2c_client *c)
{
struct tuner *t = i2c_get_clientdata(c);
struct em28xx *dev;
const struct firmware *fw = NULL;
size_t firmware_size;
int ret=-1;
int i=0;
int d=0;
int txtlen;
long fwoff;
u8 *firmware;
u8 linebuffer[100];
char *fwoffset;
/*
request firmware from /lib/firmware, note that the file got extracted by the convert application I wrote and which is available
on linuxtv.org / xc3028
*/
ret = request_firmware(&fw, XC3028_DEFAULT_FIRMWARE, &t->i2c.dev);
if (ret) {
printk("xc3028: no firmware uploaded please check %s\n",XC3028_DEFAULT_FIRMWARE);
return ret;
}
firmware = fw->data;
firmware_size = fw->size;
/* small firmware check, both firmwares I have are between 6 and 7k bytes */
if(fw->size>7000||fw->size<6000){
printk("xc3028: wrong firmware provided!\n");
release_firmware(fw);
return(ret);
}
for(i=0;i<8&&firmware[i]!='\n';i++);
txtlen=i;
firmware[i++]=0;
fwoff=simple_strtol(firmware,&fwoffset,10);
if(fwoff>fw->size){
printk("xc3028: firmware offset doesn't match!\n");
release_firmware(fw);
return(-1);
}
linebuffer[d++]=0x2a;
dev=c->adapter->algo_data;
/* 0x08 is a GPIO address of the em28xx has to get replaced with something generic here */
dev->em28xx_write_regs(dev, 0x08, "\x6d", 1);
dev->em28xx_write_regs(dev, 0x08, "\x7d", 1);
/*
the firmware always starts with 0x2a + 0x40 bytes payload I use to add the offset of the first part
as the first line into the firmware binary
*/
while(i!=fw->size){
linebuffer[d++]=firmware[i];
if((d%64==0&&d!=0)||i==fwoff+txtlen){
i2c_master_send(c,linebuffer,d);
if(i==(fwoff+txtlen)){
i2c_master_send(c,"\x02\x02",2);
i2c_master_send(c,"\x02\x03",2);
i2c_master_send(c,"\x00\x8c",2);
i2c_master_send(c,"\x00\x00\x00\x00",4);
/* at least 100 ms delay here, if less terratec FW won't work */
msleep(100);
/* another reset here */
dev->em28xx_write_regs(dev, 0x08, "\x6d", 1);
dev->em28xx_write_regs(dev, 0x08, "\x7d", 1);
}
linebuffer[0]=0x2a;
d=1;
}
i++;
}
printk("xc3024: Firmware uploaded\n");
release_firmware(fw);
/* MAGIC VALUES Hauppauge */
i2c_master_send(c,"\x13\x39",2);
i2c_master_send(c,"\x0c\x80\xf0\xf7\x3e\x75\xc1\x8a\xe4\x02\x00",11);
i2c_master_send(c,"\x05\x0f\xee\xaa\x5f\xea\x90",7);
i2c_master_send(c,"\x06\x00\x0a\x4d\x8c\xf2\xd8\xcf\x30\x79\x9f",11);
i2c_master_send(c,"\x0b\x0d\xa4\x6c",4);
i2c_master_send(c,"\x0a\x01\x67\x24\x40\x08\xc3\x20\x10\x64\x3c\xfa\xf7\xe1\x0c\x2c",0x10);
i2c_master_send(c,"\x09\x0b",0x2);
i2c_master_send(c,"\x10\x13",0x2);
i2c_master_send(c,"\x16\x12",0x2);
i2c_master_send(c,"\x1f\x02",0x2);
i2c_master_send(c,"\x21\x02",0x2);
i2c_master_send(c,"\x01\x02",0x2);
i2c_master_send(c,"\x2b\x10",0x2);
i2c_master_send(c,"\x02\x02",0x2);
i2c_master_send(c,"\x02\x03",0x2);
i2c_master_send(c,"\x00\x8c",0x2);
#if 0
/* MAGIC Values Terratec - dvb init*/
i2c_master_send(c,"\x13\x39",0x02);
i2c_master_send(c,"\x0c\x80\xf0\xf7\x3e\x75\xc1\x8a\xe4\x02\x00",11);
i2c_master_send(c,"\x05\x0f\xee\xaa\x5f\xea\x90",7);
i2c_master_send(c,"\x06\x00\x0a\x4d\x8c\xf2\xd8\xcf\x30\x79\x9f",11);
i2c_master_send(c,"\x0b\x0d\xa4\x6c",4);
i2c_master_send(c,"\x0a\x01\x67\x24\x40\x08\xc3\x20\x10\x64\x3c\xfa\xf7\xe1\x0c\x2c",0x10);
i2c_master_send(c,"\x09\x0b",0x02);
i2c_master_send(c,"\x10\x13",0x02);
i2c_master_send(c,"\x16\x12",0x02);
i2c_master_send(c,"\x1f\x02",0x02);
i2c_master_send(c,"\x21\x02",0x02);
i2c_master_send(c,"\x01\x02",0x02);
i2c_master_send(c,"\x2b\x10",0x02);
i2c_master_send(c,"\x02\x02",0x02);
i2c_master_send(c,"\x02\x03",0x02);
i2c_master_send(c,"\x00\x8c",0x02);
#endif
#if 0
/* if set video will mostly be black/white - if set_color is called instead the video will have color */
i2c_master_send(c,"\x80\x01\x00\x00",0x4);
i2c_master_send(c,"\x00\x5e\x00\x29",0x4);
i2c_master_send(c,"\x2b\x1a",0x2);
#endif
xceive_set_color(c);
t->set_tv_freq = xc3028_set_tv_freq;
return(0);
}
int xceive_set_color(struct i2c_client *c){
/* I found this codeblock within the sniffed logfile it got called as it is a several times after 0x00 0x04 tuner settings are made */
/* codeblock hauppauge/terratec - analog */
i2c_master_send(c,"\x80\x01\x00\x00",4);
i2c_master_send(c,"\x00\x5e\x00\x29",4);
i2c_master_send(c,"\x2b\x1a",2);
i2c_master_send(c,"\x2b\x1b",2);
i2c_master_send(c,"\x14\x01\x6c\x25\x82\x38\xa4\x49\xa9\x24\x96\x69",0x0c);
i2c_master_send(c,"\x13\x14\x08\x30\x10\x6c\x18\x12\x0d\x19\x32\xad",0x0c);
i2c_master_send(c,"\x0d\x01\x4b\x03\x97\x55\xc7\xd7\x00\xa1\xeb\x8f\x5c",0x0d);
i2c_master_send(c,"\x1a\x00\x00\x16\x8a\x40\x00\x00\x00\x20",0x0a);
i2c_master_send(c,"\x2d\x01",2);
i2c_master_send(c,"\x18\x01",2);
i2c_master_send(c,"\x1b\x01\xb6\x15\x16\xb1\xa6\xd2\xa9\x12\x41\x66",0x0c);
i2c_master_send(c,"\x1d\x00",2);
i2c_master_send(c,"\x0f\x00\x29\x56\xb0\x00\xb6",0x07);
i2c_master_send(c,"\x20\x00",0x02);
i2c_master_send(c,"\x1e\x10\x32\x00\x00\x02\xe4\x81\x00\x06\xa9\x04",0x0c);
i2c_master_send(c,"\x22\x29",0x02);
i2c_master_send(c,"\x23\x06",0x02);
i2c_master_send(c,"\x25\x00\x09\x90\x09\x06\x64\x02\x41",0x09);
i2c_master_send(c,"\x26\xcc",0x02);
i2c_master_send(c,"\x29\x40",0x02);
i2c_master_send(c,"\x21\x03",0x02);
i2c_master_send(c,"\x00\x8c",0x02);
i2c_master_send(c,"\x00\x00\x00\x00",0x04); /* just wonder no sleep here regarding the logs */
i2c_master_send(c,"\x00\x04",0x02);
return(0);
}
/*
* Overrides for Emacs so that we follow Linus's tabbing style.
* ---------------------------------------------------------------------------
* Local variables:
* c-basic-offset: 8
* End:
*/
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