drivers/media/dvb/dvb-usb/az6007.c

/* DVB USB compliant Linux driver for the AzureWave 6017 USB2.0 DVB-S
 * receiver.
 * see Documentation/dvb/README.dvb-usb for more information
 */

#include "az6007.h"
#include "drxk.h"
#include "mt2063.h"
#include "dvb_ca_en50221.h"

/* debug */
int dvb_usb_az6007_debug;
module_param_named(debug,dvb_usb_az6007_debug, int, 0644);
MODULE_PARM_DESC(debug, "set debugging level (1=info,xfer=2,rc=4 (or-able))." DVB_USB_DEBUG_STATUS);


static int az6007_type =0;
module_param(az6007_type, int, 0644);
MODULE_PARM_DESC(az6007_type, "select delivery mode (0=DVB-T, 1=DVB-T");

//module_param_named(type, 6007_type, int, 0644);
//MODULE_PARM_DESC(type, "select delivery mode (0=DVB-T, 1=DVB-C)");

DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);


struct az6007_device_state {
	struct dvb_ca_en50221 ca;
	struct mutex ca_mutex;
	u8 power_state;
};

struct drxk3913_config az6007_drxk3913_config_DVBT = {	
	.demod_address = 0x52,
	.min_delay_ms = 100,
	.standard	= MTTUNEA_DVBT,
	.set_tuner = mt2063_setTune,
	.tuner_getlocked = mt2063_lockStatus,
	.tuner_MT2063_Open = tuner_MT2063_Open,
	.tuner_MT2063_SoftwareShutdown = tuner_MT2063_SoftwareShutdown,
	.tuner_MT2063_ClearPowerMaskBits = tuner_MT2063_ClearPowerMaskBits,
};

struct drxk3913_config az6007_drxk3913_config_DVBC = {	
	.demod_address = 0x52,
	.min_delay_ms = 100,
	.standard	= MTTUNEA_DVBC,
	.set_tuner = mt2063_setTune,
	.tuner_getlocked = mt2063_lockStatus,
	.tuner_MT2063_Open = tuner_MT2063_Open,
	.tuner_MT2063_SoftwareShutdown = tuner_MT2063_SoftwareShutdown,
	.tuner_MT2063_ClearPowerMaskBits = tuner_MT2063_ClearPowerMaskBits,
};

struct mt2063_config az6007_mt2063_config = {
	.tuner_address = 0xc0,
	.refclock = 36125000,
};

/* check for mutex FIXME */
int az6007_usb_in_op(struct dvb_usb_device *d, u8 req, u16 value, u16 index, u8 *b, int blen)
{
	int ret = -1;

		ret = usb_control_msg(d->udev,
			usb_rcvctrlpipe(d->udev,0),
			req,
			USB_TYPE_VENDOR | USB_DIR_IN,
			value,index,b,blen,
			5000);

	if (ret < 0) {
		warn("usb in operation failed. (%d)", ret);
		ret = -EIO;
	} else
		ret = 0;


	deb_xfer("in: req. %02x, val: %04x, ind: %04x, buffer: ",req,value,index);
	debug_dump(b,blen,deb_xfer);

	return ret;
}

static int az6007_usb_out_op(struct dvb_usb_device *d, u8 req, u16 value,
			     u16 index, u8 *b, int blen)
{
	int ret;

#if 0	
	int i=0, cyc=0, rem=0;
	cyc = blen/64;
	rem = blen%64;
#endif

	deb_xfer("out: req. %02x, val: %04x, ind: %04x, buffer: ",req,value,index);
	debug_dump(b,blen,deb_xfer);

	
#if 0
	if (blen>64)
	{
		for (i=0; i<cyc; i++)
		{
			if ((ret = usb_control_msg(d->udev,
				usb_sndctrlpipe(d->udev,0),
				req,
				USB_TYPE_VENDOR | USB_DIR_OUT,
				value,index+i*64,b+i*64,64,
				5000)) != 64) {
				warn("usb out operation failed. (%d)",ret);
				return -EIO;
			}	
		}

		if (rem>0)
		{
			if ((ret = usb_control_msg(d->udev,
				usb_sndctrlpipe(d->udev,0),
				req,
				USB_TYPE_VENDOR | USB_DIR_OUT,
				value,index+cyc*64,b+cyc*64,rem,
				5000)) != rem) {
				warn("usb out operation failed. (%d)",ret);
				return -EIO;
			}
		}
	}
	else
#endif		
	{
		if ((ret = usb_control_msg(d->udev,
				usb_sndctrlpipe(d->udev,0),
				req,
				USB_TYPE_VENDOR | USB_DIR_OUT,
				value,index,b,blen,
				5000)) != blen) {
			warn("usb out operation failed. (%d)",ret);
			return -EIO;
		}
	}
	
	return 0;
}

static int az6007_streaming_ctrl(struct dvb_usb_adapter *adap, int onoff)
{
	return 0;
}

/* keys for the enclosed remote control */
static struct dvb_usb_rc_key az6007_rc_keys[] = {
	{ 0x00, 0x01, KEY_1 },
	{ 0x00, 0x02, KEY_2 },
};

/* remote control stuff (does not work with my box) */
static int az6007_rc_query(struct dvb_usb_device *d, u32 *event, int *state)
{
	return 0;
#if 0
	u8 key[10];
	int i;

/* remove the following return to enabled remote querying */
	

	az6007_usb_in_op(d,READ_REMOTE_REQ,0,0,key,10);

	deb_rc("remote query key: %x %d\n",key[1],key[1]);

	if (key[1] == 0x44) {
		*state = REMOTE_NO_KEY_PRESSED;
		return 0;
	}

	for (i = 0; i < ARRAY_SIZE(az6007_rc_keys); i++)
		if (az6007_rc_keys[i].custom == key[1]) {
			*state = REMOTE_KEY_PRESSED;
			*event = az6007_rc_keys[i].event;
			break;
		}
	return 0;
#endif
}

/*
int az6007_power_ctrl(struct dvb_usb_device *d, int onoff)
{
	u8 v = onoff;
	return az6007_usb_out_op(d,0xBC,v,3,NULL,1);
}
*/

static int az6007_read_mac_addr(struct dvb_usb_device *d,u8 mac[6])
{
	az6007_usb_in_op(d, 0xb7, 6, 0, &mac[0], 6);
	return 0;
}

static int az6007_frontend_poweron(struct dvb_usb_adapter *adap)
{
	int ret;
	u8 req;
	u16 value;
	u16 index;
	int blen;

	info("az6007_frontend_poweron adap=%p adap->dev=%p\n", adap, adap->dev);

	req = 0xBC;
	value = 1;//power on
	index = 3;
	blen =0;

	if((ret = az6007_usb_out_op(adap->dev,req,value,index,NULL,blen)) != 0)
	{
		err("az6007_frontend_poweron failed!!!");
		 return -EIO;
	}

	msleep_interruptible(200);

	req = 0xBC;
	value = 0;//power on
	index = 3;
	blen =0;

	if((ret = az6007_usb_out_op(adap->dev,req,value,index,NULL,blen)) != 0)
	{
		err("az6007_frontend_poweron failed!!!");
		 return -EIO;
	}

	msleep_interruptible(200);

	req = 0xBC;
	value = 1;//power on
	index = 3;
	blen =0;

	if((ret = az6007_usb_out_op(adap->dev,req,value,index,NULL,blen)) != 0)
	{
		err("az6007_frontend_poweron failed!!!");
		 return -EIO;
	}
	info("az6007_frontend_poweron\n");
	return 0;
}

static int az6007_frontend_reset(struct dvb_usb_adapter *adap)
{
	int ret;
	u8 req;
	u16 value;
	u16 index;
	int blen;

	info("az6007_frontend_reset adap=%p adap->dev=%p\n", adap, adap->dev);
	
	//reset demodulator
	req = 0xC0;
	value = 1;//high
	index = 3;
	blen =0;
	if((ret = az6007_usb_out_op(adap->dev,req,value,index,NULL,blen)) != 0)
	{
		err("az6007_frontend_reset failed 1 !!!");
		   return -EIO;
	}
	
	req = 0xC0;
	value = 0;//low
	index = 3;
	blen =0;
	msleep_interruptible(200);
	if((ret = az6007_usb_out_op(adap->dev,req,value,index,NULL,blen)) != 0)
	{
		err("az6007_frontend_reset failed 2 !!!");
		   return -EIO;
	}
	msleep_interruptible(200);
	req = 0xC0;
	value = 1;//high
	index = 3;
	blen =0;

	if((ret = az6007_usb_out_op(adap->dev,req,value,index,NULL,blen)) != 0)
	{
		err("az6007_frontend_reset failed 3 !!!");
		   return -EIO;
	}
	
	msleep_interruptible(200);
	
	info("reset az6007 frontend\n");
	
	return 0;
}

static int az6007_led_on_off(struct usb_interface *intf, int onoff)
{
	int ret = -1;
	u8 req;
	u16 value;
	u16 index;
	int blen;
	//TS through
	req = 0xBC;
	value = onoff;
	index = 0;
	blen =0;

	ret = usb_control_msg(interface_to_usbdev(intf),
		usb_rcvctrlpipe(interface_to_usbdev(intf),0),
		req,
		USB_TYPE_VENDOR | USB_DIR_OUT,
		value,index,NULL,blen,
		2000);

	if (ret < 0) {
		warn("usb in operation failed. (%d)", ret);
		ret = -EIO;
	} else
		ret = 0;


	deb_xfer("in: req. %02x, val: %04x, ind: %04x, buffer: ",req,value,index);

	return ret;
}

static int az6007_frontend_tsbypass(struct dvb_usb_adapter *adap,int onoff)
{
	int ret;
	u8 req;
	u16 value;
	u16 index;
	int blen;
	//TS through
	req = 0xC7;
	value = onoff;
	index = 0;
	blen =0;

	if((ret = az6007_usb_out_op(adap->dev,req,value,index,NULL,blen)) != 0)
		   return -EIO;
	return 0;
}

static int az6007_frontend_attach(struct dvb_usb_adapter *adap)
{
	az6007_frontend_poweron(adap);
	az6007_frontend_reset(adap);

	info("az6007_frontend_attach\n");

	if (az6007_type == 0)
	{
		info("az6007_drxk3913_config_DVBT\n");
		adap->fe = drxk3913_attach(&az6007_drxk3913_config_DVBT, &adap->dev->i2c_adap);
	}
	else
	{
		info("az6007_drxk3913_config_DVBC\n");
		adap->fe = drxk3913_attach(&az6007_drxk3913_config_DVBC, &adap->dev->i2c_adap);
	}
	if (adap->fe) {		
		if (mt2063_attach(adap->fe, &az6007_mt2063_config, &adap->dev->i2c_adap)) {
			info("found STB6100 DVB-C/DVB-T frontend @0x%02x\n",az6007_mt2063_config.tuner_address);
			
			//vp6027_ci_init(adap);
		} else {
			adap->fe = NULL;
		}
	}
	else
	{
		adap->fe = NULL;	
		err("no front-end attached\n");
	}
	//az6007_frontend_tsbypass(adap,0);
	
	return 0;
}

static struct dvb_usb_device_properties az6007_properties;

static void
az6007_usb_disconnect(struct usb_interface *intf)
{
	dvb_usb_device_exit (intf);
}

/* I2C */
static int az6007_i2c_xfer(struct i2c_adapter *adap,struct i2c_msg msg[],int num)
{
	struct dvb_usb_device *d = i2c_get_adapdata(adap);
	int j=0,len=0;
	int ret=0;
	u16 index;
	u16 value;
	int length;
	u8 req;
	u8 data[512];
	
	if (mutex_lock_interruptible(&d->i2c_mutex) < 0)
		return -EAGAIN;
	if (num > 2)
		warn("more than 2 i2c messages at a time is not handled yet. TODO.");


	if (msg[0].addr == 0xc0) //MT2063
	{
		if (msg[0].flags != I2C_M_RD) //write
		{
			//printk("Tuner Tuner Write DevAddr=%02x  RegAddr=%d\n", msg[0].addr, msg[0].buf[0]);
			req = 0xBD;
			index = msg[0].buf[0];
			value = msg[0].addr | (1<<8);
			length = msg[0].len - 1;
			len = msg[0].len - 1;
			//printk("Tuner Tuner WriteDATA len=%d ", len);
			for(j=0;j<len;j++)
			{
				data[j] = msg[0].buf[j+1];
				//printk("data[%d]=%02x ", j, data[j]);
			}
			//printk("\n");
			ret = az6007_usb_out_op(d,req,value,index,data,length);
			//ret = az6007_usb_out_op(d,req,value,index,&(msg[0].buf[1]),length);
		}
		else //read
		{
			//printk("Tuner Tuner Read DevAddr=%02x RegAddr=%02x\n", msg[0].addr, msg[0].buf[0]);
			req = 0xB9;
			index = msg[0].buf[0];
			value = msg[0].addr + (1 << 8);
			length = msg[1].len + 6;
			ret = az6007_usb_in_op(d,req,value,index,data,length);
			len = msg[1].len;
			//printk("Tuner Tuner ReadDATA len=%d ", len);
			for (j=0; j<len; j++)
			{
				msg[1].buf[j] = data[j+5];	
				//printk("data[%d]=%02x ", j, data[j+5]);
			}
			//printk("\n");
		}
	}
	else
	{	//Demodulator
		if (msg[0].flags != I2C_M_RD) //write
		{
			//printk("Demodulator Write DevAddr=%02x  RegAddr=%d\n", msg[0].addr, msg[0].buf[0]);
			req = 0xBD;
			index = msg[0].buf[0];
			value = msg[0].addr | (1<<8);
			length = msg[0].len - 1;
			len = msg[0].len - 1;
			//printk("Demodulator WriteDATA len=%d ", len);			
			for(j=0;j<len;j++)
			{
				data[j] = msg[0].buf[j+1];
				//printk("data[%d]=%02x ", j, data[j]);
			}
			//printk("\n");			
			ret = az6007_usb_out_op(d,req,value,index,data,length);
		}
		else //read
		{
			//printk("Demodulator Read DevAddr=%02x RegAddr=%02x\n", msg[0].addr, msg[0].buf[0]);
			req = 0xB9;
			index = 0;
			value = msg[0].addr + (0 << 8);
			length = msg[0].len + 6;
			ret = az6007_usb_in_op(d,req,value,index,data,length);
			len = msg[0].len;
			//printk("Demodulator ReadDATA len=%d ", len);
			for (j=0; j<len; j++)
			{
				msg[0].buf[j] = data[j+5];	
				//printk("data[%d]=%02x ", j, data[j+5]);
			}
			//printk("\n");
		}
	}
	mutex_unlock(&d->i2c_mutex);
	return ret;
}


static u32 az6007_i2c_func(struct i2c_adapter *adapter)
{
	return I2C_FUNC_I2C;
}

static struct i2c_algorithm az6007_i2c_algo = {
	.master_xfer   = az6007_i2c_xfer,
	.functionality = az6007_i2c_func,
#ifdef NEED_ALGO_CONTROL
	.algo_control = dummy_algo_control,
#endif
};

int az6007_identify_state(struct usb_device *udev, struct dvb_usb_device_properties *props,
			struct dvb_usb_device_description **desc, int *cold)
{
	u8 b[16];
	s16 ret = usb_control_msg(udev, usb_rcvctrlpipe(udev,0),
		0xb7, USB_TYPE_VENDOR | USB_DIR_IN, 6, 0, b, 6, USB_CTRL_GET_TIMEOUT);

	info("FW GET_VERSION length: %d\n",ret);

	*cold = ret <= 0;

	info("cold: %d\n", *cold);
	return 0;
}

static int az6007_usb_probe(struct usb_interface *intf,
		const struct usb_device_id *id)
{
	az6007_led_on_off(intf, 0);	
		
	return dvb_usb_device_init(intf, &az6007_properties,
				   THIS_MODULE, NULL, adapter_nr);	
}

static struct usb_device_id az6007_usb_table [] = {
	    { USB_DEVICE(USB_VID_AZUREWAVE, USB_PID_AZUREWAVE_6007) },
	    { USB_DEVICE(USB_VID_TERRATEC, USB_PID_TERRATEC_H7) },
	    { 0 },
};

MODULE_DEVICE_TABLE(usb, az6007_usb_table);

static struct dvb_usb_device_properties az6007_properties = {
	.caps = DVB_USB_IS_AN_I2C_ADAPTER,
	.usb_ctrl = CYPRESS_FX2,
	//.download_firmware = az6007_download_firmware,
	.firmware            = "dvb-usb-az6007-03.fw",
	.no_reconnect        = 1,

	.size_of_priv     = sizeof(struct az6007_device_state),
	.identify_state		= az6007_identify_state,
	.num_adapters = 1,
	.adapter = {
		{
			//.caps             = DVB_USB_ADAP_RECEIVES_204_BYTE_TS,

			.streaming_ctrl   = az6007_streaming_ctrl,
			.frontend_attach  = az6007_frontend_attach,

			/* parameter for the MPEG2-data transfer */
			.stream = {
				.type = USB_BULK,
				.count = 10,
				.endpoint = 0x02,
				.u = {
					.bulk = {
						.buffersize = 4096,
					}
				}
			},
			.size_of_priv     = 0,//sizeof(struct az6007_state),
		}
	},
	//.power_ctrl       = az6007_power_ctrl,
	.read_mac_address = az6007_read_mac_addr,

	.rc_key_map       = az6007_rc_keys,
	.rc_key_map_size  = ARRAY_SIZE(az6007_rc_keys),
	.rc_interval      = 400,
	.rc_query         = az6007_rc_query,
	.i2c_algo         = &az6007_i2c_algo,

	.num_device_descs = 2,
	.devices = {
		{ .name = "AzureWave DTV StarBox DVB-T/C USB2.0 (az6007)",
		  .cold_ids = { &az6007_usb_table[0], NULL },
		  .warm_ids = { NULL },
		},
		{ .name = "TerraTec DTV StarBox DVB-T/C USB2.0 (az6007)",
		  .cold_ids = { &az6007_usb_table[1], NULL },
		  .warm_ids = { NULL },
		},
 		{ NULL },
	}
};
  
/* usb specific object needed to register this driver with the usb subsystem */
static struct usb_driver az6007_usb_driver = {
	.name		= "dvb_usb_az6007",
	.probe 		= az6007_usb_probe,
	.disconnect = dvb_usb_device_exit,
	//.disconnect 	= az6007_usb_disconnect,
	.id_table 	= az6007_usb_table,
};

/* module stuff */
static int __init az6007_usb_module_init(void)
{
	int result;
	info("henry :: az6007 usb module init");
	if ((result = usb_register(&az6007_usb_driver))) {
		err("usb_register failed. (%d)",result);
		return result;
	}

	return 0;
}

static void __exit az6007_usb_module_exit(void)
{
	/* deregister this driver from the USB subsystem */
	info("henry :: az6007 usb module exit");
	usb_deregister(&az6007_usb_driver);
}

module_init(az6007_usb_module_init);
module_exit(az6007_usb_module_exit);

MODULE_AUTHOR("Henry Wang <Henry.wang@AzureWave.com>");
MODULE_DESCRIPTION("Driver for AzureWave 6007 DVB-C/T USB2.0 and clones");
MODULE_VERSION("1.0");
MODULE_LICENSE("GPL");