fixed xc3028 firmware extractor, added terratec fw support

From: Markus Rechberger <mrechberger@gmail.com>

fixed xc3028 firmware extractor for terratec's emBDA.sys firmware
fixed delay in firmwareupload, now terratec's firmware also works



Signed-off-by: Markus Rechberger <mrechberger@gmail.com>

4 files changed, 237 insertions, 3 deletions

diff --git a/linux/drivers/media/video/em28xx/em28xx-cards.c b/linux/drivers/media/video/em28xx/em28xx-cards.c
index dbaf5f207..9830404e5 100644
--- a/linux/drivers/media/video/em28xx/em28xx-cards.c
+++ b/linux/drivers/media/video/em28xx/em28xx-cards.c
@@ -182,8 +182,8 @@ struct em28xx_board em28xx_boards[] = {
 		.vchannels    = 3,
 		.norm         = VIDEO_MODE_PAL,
 		.tda9887_conf = TDA9887_PRESENT,
-		.tuner_type   = TUNER_XCEIVE_XC3028,
 		.has_tuner    = 1,
+		.tuner_type   = TUNER_XCEIVE_XC3028,
 		.decoder      = EM28XX_TVP5150,
 		.input          = {{
 			.type     = EM28XX_VMUX_COMPOSITE1,
diff --git a/linux/drivers/media/video/em28xx/em28xx-i2c.c b/linux/drivers/media/video/em28xx/em28xx-i2c.c
index 75f36e371..59b13ff37 100644
--- a/linux/drivers/media/video/em28xx/em28xx-i2c.c
+++ b/linux/drivers/media/video/em28xx/em28xx-i2c.c
@@ -420,7 +420,6 @@ static int em28xx_set_tuner(int check_eeprom, struct i2c_client *client)
 		tun_setup.mode_mask = T_ANALOG_TV | T_RADIO;
 		tun_setup.type = dev->tuner_type;
 		tun_setup.addr = dev->tuner_addr;
-
 		em28xx_i2c_call_clients(dev, TUNER_SET_TYPE_ADDR, &tun_setup);
 	}
 
diff --git a/linux/drivers/media/video/tuner-core.c b/linux/drivers/media/video/tuner-core.c
index bc559b9d7..fb684fdb0 100644
--- a/linux/drivers/media/video/tuner-core.c
+++ b/linux/drivers/media/video/tuner-core.c
@@ -202,7 +202,6 @@ static void set_type(struct i2c_client *c, unsigned int type,
 #endif
 
 	t->type = type;
-
 	switch (t->type) {
 	case TUNER_MT2032:
 		microtune_init(c);
diff --git a/linux/drivers/media/video/xc3028.c b/linux/drivers/media/video/xc3028.c
new file mode 100644
index 000000000..a2d5df4c0
--- /dev/null
+++ b/linux/drivers/media/video/xc3028.c
@@ -0,0 +1,236 @@
+/*
+
+   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:
+ */