Linux-2.6.12-rc2

Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!
diff --git a/drivers/media/dvb/dibusb/dvb-dibusb-fe-i2c.c b/drivers/media/dvb/dibusb/dvb-dibusb-fe-i2c.c
new file mode 100644
index 0000000..2ed8948
--- /dev/null
+++ b/drivers/media/dvb/dibusb/dvb-dibusb-fe-i2c.c
@@ -0,0 +1,582 @@
+/*
+ * dvb-dibusb-fe-i2c.c is part of the driver for mobile USB Budget DVB-T devices
+ * based on reference design made by DiBcom (http://www.dibcom.fr/)
+ *
+ * Copyright (C) 2004-5 Patrick Boettcher (patrick.boettcher@desy.de)
+ *
+ * see dvb-dibusb-core.c for more copyright details.
+ *
+ * This file contains functions for attaching, initializing of an appropriate
+ * demodulator/frontend. I2C-stuff is also located here.
+ *
+ */
+#include "dvb-dibusb.h"
+
+#include <linux/usb.h>
+
+static int dibusb_i2c_msg(struct usb_dibusb *dib, u8 addr,
+			  u8 *wbuf, u16 wlen, u8 *rbuf, u16 rlen)
+{
+	u8 sndbuf[wlen+4]; /* lead(1) devaddr,direction(1) addr(2) data(wlen) (len(2) (when reading)) */
+	/* write only ? */
+	int wo = (rbuf == NULL || rlen == 0),
+		len = 2 + wlen + (wo ? 0 : 2);
+
+	sndbuf[0] = wo ? DIBUSB_REQ_I2C_WRITE : DIBUSB_REQ_I2C_READ;
+	sndbuf[1] = (addr << 1) | (wo ? 0 : 1);
+
+	memcpy(&sndbuf[2],wbuf,wlen);
+
+	if (!wo) {
+		sndbuf[wlen+2] = (rlen >> 8) & 0xff;
+		sndbuf[wlen+3] = rlen & 0xff;
+	}
+
+	return dibusb_readwrite_usb(dib,sndbuf,len,rbuf,rlen);
+}
+
+/*
+ * I2C master xfer function
+ */
+static int dibusb_i2c_xfer(struct i2c_adapter *adap,struct i2c_msg *msg,int num)
+{
+	struct usb_dibusb *dib = i2c_get_adapdata(adap);
+	int i;
+
+	if (down_interruptible(&dib->i2c_sem) < 0)
+		return -EAGAIN;
+
+	if (num > 2)
+		warn("more than 2 i2c messages at a time is not handled yet. TODO.");
+
+	for (i = 0; i < num; i++) {
+		/* write/read request */
+		if (i+1 < num && (msg[i+1].flags & I2C_M_RD)) {
+			if (dibusb_i2c_msg(dib, msg[i].addr, msg[i].buf,msg[i].len,
+						msg[i+1].buf,msg[i+1].len) < 0)
+				break;
+			i++;
+		} else
+			if (dibusb_i2c_msg(dib, msg[i].addr, msg[i].buf,msg[i].len,NULL,0) < 0)
+				break;
+	}
+
+	up(&dib->i2c_sem);
+	return i;
+}
+
+static u32 dibusb_i2c_func(struct i2c_adapter *adapter)
+{
+	return I2C_FUNC_I2C;
+}
+
+static struct i2c_algorithm dibusb_algo = {
+	.name			= "DiBcom USB i2c algorithm",
+	.id				= I2C_ALGO_BIT,
+	.master_xfer	= dibusb_i2c_xfer,
+	.functionality	= dibusb_i2c_func,
+};
+
+static int dibusb_general_demod_init(struct dvb_frontend *fe);
+static u8 dibusb_general_pll_addr(struct dvb_frontend *fe);
+static int dibusb_general_pll_init(struct dvb_frontend *fe, u8 pll_buf[5]);
+static int dibusb_general_pll_set(struct dvb_frontend *fe,
+		struct dvb_frontend_parameters* params, u8 pll_buf[5]);
+
+static struct mt352_config mt352_hanftek_umt_010_config = {
+	.demod_address = 0x1e,
+	.demod_init = dibusb_general_demod_init,
+	.pll_set = dibusb_general_pll_set,
+};
+
+static int dibusb_tuner_quirk(struct usb_dibusb *dib)
+{
+	switch (dib->dibdev->dev_cl->id) {
+		case DIBUSB1_1: /* some these device have the ENV77H11D5 and some the THOMSON CABLE */
+		case DIBUSB1_1_AN2235: { /* actually its this device, but in warm state they are indistinguishable */
+			struct dibusb_tuner *t;
+			u8 b[2] = { 0,0 } ,b2[1];
+			struct i2c_msg msg[2] = {
+				{ .flags = 0, .buf = b, .len = 2 },
+				{ .flags = I2C_M_RD, .buf = b2, .len = 1},
+			};
+
+			t = &dibusb_tuner[DIBUSB_TUNER_COFDM_PANASONIC_ENV77H11D5];
+
+			msg[0].addr = msg[1].addr = t->pll_addr;
+
+			if (dib->xfer_ops.tuner_pass_ctrl != NULL)
+				dib->xfer_ops.tuner_pass_ctrl(dib->fe,1,t->pll_addr);
+			dibusb_i2c_xfer(&dib->i2c_adap,msg,2);
+			if (dib->xfer_ops.tuner_pass_ctrl != NULL)
+				dib->xfer_ops.tuner_pass_ctrl(dib->fe,0,t->pll_addr);
+
+			if (b2[0] == 0xfe)
+				info("this device has the Thomson Cable onboard. Which is default.");
+			else {
+				dib->tuner = t;
+				info("this device has the Panasonic ENV77H11D5 onboard.");
+			}
+			break;
+		}
+		default:
+			break;
+	}
+	return 0;
+}
+
+int dibusb_fe_init(struct usb_dibusb* dib)
+{
+	struct dib3000_config demod_cfg;
+	int i;
+
+	if (dib->init_state & DIBUSB_STATE_I2C) {
+		for (i = 0; i < sizeof(dib->dibdev->dev_cl->demod->i2c_addrs) / sizeof(unsigned char) &&
+				dib->dibdev->dev_cl->demod->i2c_addrs[i] != 0; i++) {
+
+			demod_cfg.demod_address = dib->dibdev->dev_cl->demod->i2c_addrs[i];
+			demod_cfg.pll_addr = dibusb_general_pll_addr;
+			demod_cfg.pll_set = dibusb_general_pll_set;
+			demod_cfg.pll_init = dibusb_general_pll_init;
+
+			deb_info("demod id: %d %d\n",dib->dibdev->dev_cl->demod->id,DTT200U_FE);
+
+			switch (dib->dibdev->dev_cl->demod->id) {
+				case DIBUSB_DIB3000MB:
+					dib->fe = dib3000mb_attach(&demod_cfg,&dib->i2c_adap,&dib->xfer_ops);
+				break;
+				case DIBUSB_DIB3000MC:
+					dib->fe = dib3000mc_attach(&demod_cfg,&dib->i2c_adap,&dib->xfer_ops);
+				break;
+				case DIBUSB_MT352:
+					mt352_hanftek_umt_010_config.demod_address = dib->dibdev->dev_cl->demod->i2c_addrs[i];
+					dib->fe = mt352_attach(&mt352_hanftek_umt_010_config, &dib->i2c_adap);
+				break;
+				case DTT200U_FE:
+					dib->fe = dtt200u_fe_attach(dib,&dib->xfer_ops);
+				break;
+			}
+			if (dib->fe != NULL) {
+				info("found demodulator at i2c address 0x%x",dib->dibdev->dev_cl->demod->i2c_addrs[i]);
+				break;
+			}
+		}
+		/* if a frontend was found */
+		if (dib->fe != NULL) {
+			if (dib->fe->ops->sleep != NULL)
+				dib->fe_sleep = dib->fe->ops->sleep;
+			dib->fe->ops->sleep = dibusb_hw_sleep;
+
+			if (dib->fe->ops->init != NULL )
+				dib->fe_init = dib->fe->ops->init;
+			dib->fe->ops->init = dibusb_hw_wakeup;
+
+			/* setting the default tuner */
+			dib->tuner = dib->dibdev->dev_cl->tuner;
+
+			/* check which tuner is mounted on this device, in case this is unsure */
+			dibusb_tuner_quirk(dib);
+		}
+	}
+	if (dib->fe == NULL) {
+		err("A frontend driver was not found for device '%s'.",
+		       dib->dibdev->name);
+		return -ENODEV;
+	} else {
+		if (dvb_register_frontend(dib->adapter, dib->fe)) {
+			err("Frontend registration failed.");
+			if (dib->fe->ops->release)
+				dib->fe->ops->release(dib->fe);
+			dib->fe = NULL;
+			return -ENODEV;
+		}
+	}
+
+	return 0;
+}
+
+int dibusb_fe_exit(struct usb_dibusb *dib)
+{
+	if (dib->fe != NULL)
+		dvb_unregister_frontend(dib->fe);
+	return 0;
+}
+
+int dibusb_i2c_init(struct usb_dibusb *dib)
+{
+	int ret = 0;
+
+	dib->adapter->priv = dib;
+
+	strncpy(dib->i2c_adap.name,dib->dibdev->name,I2C_NAME_SIZE);
+#ifdef I2C_ADAP_CLASS_TV_DIGITAL
+	dib->i2c_adap.class = I2C_ADAP_CLASS_TV_DIGITAL,
+#else
+	dib->i2c_adap.class = I2C_CLASS_TV_DIGITAL,
+#endif
+	dib->i2c_adap.algo		= &dibusb_algo;
+	dib->i2c_adap.algo_data = NULL;
+	dib->i2c_adap.id		= I2C_ALGO_BIT;
+
+	i2c_set_adapdata(&dib->i2c_adap, dib);
+
+	if ((ret = i2c_add_adapter(&dib->i2c_adap)) < 0)
+		err("could not add i2c adapter");
+
+	dib->init_state |= DIBUSB_STATE_I2C;
+
+	return ret;
+}
+
+int dibusb_i2c_exit(struct usb_dibusb *dib)
+{
+	if (dib->init_state & DIBUSB_STATE_I2C)
+		i2c_del_adapter(&dib->i2c_adap);
+	dib->init_state &= ~DIBUSB_STATE_I2C;
+	return 0;
+}
+
+
+/* pll stuff, maybe removed soon (thx to Gerd/Andrew in advance) */
+static int thomson_cable_eu_pll_set(struct dvb_frontend_parameters *fep, u8 pllbuf[4])
+{
+	u32 tfreq = (fep->frequency + 36125000) / 62500;
+	int vu,p0,p1,p2;
+
+	if (fep->frequency > 403250000)
+		vu = 1, p2 = 1, p1 = 0, p0 = 1;
+	else if (fep->frequency > 115750000)
+		vu = 0, p2 = 1, p1 = 1, p0 = 0;
+	else if (fep->frequency > 44250000)
+		vu = 0, p2 = 0, p1 = 1, p0 = 1;
+	else
+		return -EINVAL;
+
+	pllbuf[0] = (tfreq >> 8) & 0x7f;
+	pllbuf[1] = tfreq & 0xff;
+	pllbuf[2] = 0x8e;
+	pllbuf[3] = (vu << 7) | (p2 << 2) | (p1 << 1) | p0;
+	return 0;
+}
+
+static int panasonic_cofdm_env57h1xd5_pll_set(struct dvb_frontend_parameters *fep, u8 pllbuf[4])
+{
+	u32 freq_khz = fep->frequency / 1000;
+	u32 tfreq = ((freq_khz + 36125)*6 + 500) / 1000;
+	u8 TA, T210, R210, ctrl1, cp210, p4321;
+	if (freq_khz > 858000) {
+		err("frequency cannot be larger than 858 MHz.");
+		return -EINVAL;
+	}
+
+	// contol data 1 : 1 | T/A=1 | T2,T1,T0 = 0,0,0 | R2,R1,R0 = 0,1,0
+	TA = 1;
+	T210 = 0;
+	R210 = 0x2;
+	ctrl1 = (1 << 7) | (TA << 6) | (T210 << 3) | R210;
+
+// ********    CHARGE PUMP CONFIG vs RF FREQUENCIES     *****************
+	if (freq_khz < 470000)
+		cp210 = 2;  // VHF Low and High band ch E12 to E4 to E12
+	else if (freq_khz < 526000)
+		cp210 = 4;  // UHF band Ch E21 to E27
+	else // if (freq < 862000000)
+		cp210 = 5;  // UHF band ch E28 to E69
+
+//*********************    BW select  *******************************
+	if (freq_khz < 153000)
+		p4321  = 1; // BW selected for VHF low
+	else if (freq_khz < 470000)
+		p4321  = 2; // BW selected for VHF high E5 to E12
+	else // if (freq < 862000000)
+		p4321  = 4; // BW selection for UHF E21 to E69
+
+	pllbuf[0] = (tfreq >> 8) & 0xff;
+	pllbuf[1] = (tfreq >> 0) & 0xff;
+	pllbuf[2] = 0xff & ctrl1;
+	pllbuf[3] =  (cp210 << 5) | (p4321);
+
+	return 0;
+}
+
+/*
+ *			    7	6		5	4	3	2	1	0
+ * Address Byte             1	1		0	0	0	MA1	MA0	R/~W=0
+ *
+ * Program divider byte 1   0	n14		n13	n12	n11	n10	n9	n8
+ * Program divider byte 2	n7	n6		n5	n4	n3	n2	n1	n0
+ *
+ * Control byte 1           1	T/A=1	T2	T1	T0	R2	R1	R0
+ *                          1	T/A=0	0	0	ATC	AL2	AL1	AL0
+ *
+ * Control byte 2           CP2	CP1		CP0	BS5	BS4	BS3	BS2	BS1
+ *
+ * MA0/1 = programmable address bits
+ * R/~W  = read/write bit (0 for writing)
+ * N14-0 = programmable LO frequency
+ *
+ * T/A   = test AGC bit (0 = next 6 bits AGC setting,
+ *                       1 = next 6 bits test and reference divider ratio settings)
+ * T2-0  = test bits
+ * R2-0  = reference divider ratio and programmable frequency step
+ * ATC   = AGC current setting and time constant
+ *         ATC = 0: AGC current = 220nA, AGC time constant = 2s
+ *         ATC = 1: AGC current = 9uA, AGC time constant = 50ms
+ * AL2-0 = AGC take-over point bits
+ * CP2-0 = charge pump current
+ * BS5-1 = PMOS ports control bits;
+ *             BSn = 0 corresponding port is off, high-impedance state (at power-on)
+ *             BSn = 1 corresponding port is on
+ */
+static int panasonic_cofdm_env77h11d5_tda6650_init(struct dvb_frontend *fe, u8 pllbuf[4])
+{
+	pllbuf[0] = 0x0b;
+	pllbuf[1] = 0xf5;
+	pllbuf[2] = 0x85;
+	pllbuf[3] = 0xab;
+	return 0;
+}
+
+static int panasonic_cofdm_env77h11d5_tda6650_set (struct dvb_frontend_parameters *fep,u8 pllbuf[4])
+{
+	int tuner_frequency = 0;
+	u8 band, cp, filter;
+
+	// determine charge pump
+	tuner_frequency = fep->frequency + 36166000;
+	if (tuner_frequency < 87000000)
+		return -EINVAL;
+	else if (tuner_frequency < 130000000)
+		cp = 3;
+	else if (tuner_frequency < 160000000)
+		cp = 5;
+	else if (tuner_frequency < 200000000)
+		cp = 6;
+	else if (tuner_frequency < 290000000)
+		cp = 3;
+	else if (tuner_frequency < 420000000)
+		cp = 5;
+	else if (tuner_frequency < 480000000)
+		cp = 6;
+	else if (tuner_frequency < 620000000)
+		cp = 3;
+	else if (tuner_frequency < 830000000)
+		cp = 5;
+	else if (tuner_frequency < 895000000)
+		cp = 7;
+	else
+		return -EINVAL;
+
+	// determine band
+	if (fep->frequency < 49000000)
+		return -EINVAL;
+	else if (fep->frequency < 161000000)
+		band = 1;
+	else if (fep->frequency < 444000000)
+		band = 2;
+	else if (fep->frequency < 861000000)
+		band = 4;
+	else
+		return -EINVAL;
+
+	// setup PLL filter
+	switch (fep->u.ofdm.bandwidth) {
+		case BANDWIDTH_6_MHZ:
+		case BANDWIDTH_7_MHZ:
+			filter = 0;
+			break;
+		case BANDWIDTH_8_MHZ:
+			filter = 1;
+			break;
+		default:
+			return -EINVAL;
+	}
+
+	// calculate divisor
+	// ((36166000+((1000000/6)/2)) + Finput)/(1000000/6)
+	tuner_frequency = (((fep->frequency / 1000) * 6) + 217496) / 1000;
+
+	// setup tuner buffer
+	pllbuf[0] = (tuner_frequency >> 8) & 0x7f;
+	pllbuf[1] = tuner_frequency & 0xff;
+	pllbuf[2] = 0xca;
+	pllbuf[3] = (cp << 5) | (filter << 3) | band;
+	return 0;
+}
+
+/*
+ *			    7	6	5	4	3	2	1	0
+ * Address Byte             1	1	0	0	0	MA1	MA0	R/~W=0
+ *
+ * Program divider byte 1   0	n14	n13	n12	n11	n10	n9	n8
+ * Program divider byte 2	n7	n6	n5	n4	n3	n2	n1	n0
+ *
+ * Control byte             1	CP	T2	T1	T0	RSA	RSB	OS
+ *
+ * Band Switch byte         X	X	X	P4	P3	P2	P1	P0
+ *
+ * Auxiliary byte           ATC	AL2	AL1	AL0	0	0	0	0
+ *
+ * Address: MA1	MA0	Address
+ *          0	0	c0
+ *          0	1	c2 (always valid)
+ *          1	0	c4
+ *          1	1	c6
+ */
+static int lg_tdtp_e102p_tua6034(struct dvb_frontend_parameters* fep, u8 pllbuf[4])
+{
+	u32 div;
+	u8 p210, p3;
+
+#define TUNER_MUL 62500
+
+	div = (fep->frequency + 36125000 + TUNER_MUL / 2) / TUNER_MUL;
+//	div = ((fep->frequency/1000 + 36166) * 6) / 1000;
+
+	if (fep->frequency < 174500000)
+		p210 = 1; // not supported by the tdtp_e102p
+	else if (fep->frequency < 230000000) // VHF
+		p210 = 2;
+	else
+		p210 = 4;
+
+	if (fep->u.ofdm.bandwidth == BANDWIDTH_7_MHZ)
+		p3 = 0;
+	else
+		p3 = 1;
+
+	pllbuf[0] = (div >> 8) & 0x7f;
+	pllbuf[1] = div & 0xff;
+	pllbuf[2] = 0xce;
+//	pllbuf[2] = 0xcc;
+	pllbuf[3] = (p3 << 3) | p210;
+
+	return 0;
+}
+
+static int lg_tdtp_e102p_mt352_demod_init(struct dvb_frontend *fe)
+{
+	static u8 mt352_clock_config[] = { 0x89, 0xb8, 0x2d };
+	static u8 mt352_reset[] = { 0x50, 0x80 };
+	static u8 mt352_mclk_ratio[] = { 0x8b, 0x00 };
+	static u8 mt352_adc_ctl_1_cfg[] = { 0x8E, 0x40 };
+	static u8 mt352_agc_cfg[] = { 0x67, 0x10, 0xa0 };
+
+	static u8 mt352_sec_agc_cfg1[] = { 0x6a, 0xff };
+	static u8 mt352_sec_agc_cfg2[] = { 0x6d, 0xff };
+	static u8 mt352_sec_agc_cfg3[] = { 0x70, 0x40 };
+	static u8 mt352_sec_agc_cfg4[] = { 0x7b, 0x03 };
+	static u8 mt352_sec_agc_cfg5[] = { 0x7d, 0x0f };
+
+	static u8 mt352_acq_ctl[] = { 0x53, 0x50 };
+	static u8 mt352_input_freq_1[] = { 0x56, 0x31, 0x06 };
+
+	mt352_write(fe, mt352_clock_config, sizeof(mt352_clock_config));
+	udelay(2000);
+	mt352_write(fe, mt352_reset, sizeof(mt352_reset));
+	mt352_write(fe, mt352_mclk_ratio, sizeof(mt352_mclk_ratio));
+
+	mt352_write(fe, mt352_adc_ctl_1_cfg, sizeof(mt352_adc_ctl_1_cfg));
+	mt352_write(fe, mt352_agc_cfg, sizeof(mt352_agc_cfg));
+
+	mt352_write(fe, mt352_sec_agc_cfg1, sizeof(mt352_sec_agc_cfg1));
+	mt352_write(fe, mt352_sec_agc_cfg2, sizeof(mt352_sec_agc_cfg2));
+	mt352_write(fe, mt352_sec_agc_cfg3, sizeof(mt352_sec_agc_cfg3));
+	mt352_write(fe, mt352_sec_agc_cfg4, sizeof(mt352_sec_agc_cfg4));
+	mt352_write(fe, mt352_sec_agc_cfg5, sizeof(mt352_sec_agc_cfg5));
+
+	mt352_write(fe, mt352_acq_ctl, sizeof(mt352_acq_ctl));
+	mt352_write(fe, mt352_input_freq_1, sizeof(mt352_input_freq_1));
+
+	return 0;
+}
+
+static int dibusb_general_demod_init(struct dvb_frontend *fe)
+{
+	struct usb_dibusb* dib = (struct usb_dibusb*) fe->dvb->priv;
+	switch (dib->dibdev->dev_cl->id) {
+		case UMT2_0:
+			return lg_tdtp_e102p_mt352_demod_init(fe);
+		default: /* other device classes do not have device specific demod inits */
+			break;
+	}
+	return 0;
+}
+
+static u8 dibusb_general_pll_addr(struct dvb_frontend *fe)
+{
+	struct usb_dibusb* dib = (struct usb_dibusb*) fe->dvb->priv;
+	return dib->tuner->pll_addr;
+}
+
+static int dibusb_pll_i2c_helper(struct usb_dibusb *dib, u8 pll_buf[5], u8 buf[4])
+{
+	if (pll_buf == NULL) {
+		struct i2c_msg msg = {
+			.addr = dib->tuner->pll_addr,
+			.flags = 0,
+			.buf = buf,
+			.len = sizeof(buf)
+		};
+		if (i2c_transfer (&dib->i2c_adap, &msg, 1) != 1)
+			return -EIO;
+		msleep(1);
+	} else {
+		pll_buf[0] = dib->tuner->pll_addr << 1;
+		memcpy(&pll_buf[1],buf,4);
+	}
+
+	return 0;
+}
+
+static int dibusb_general_pll_init(struct dvb_frontend *fe,
+		u8 pll_buf[5])
+{
+	struct usb_dibusb* dib = (struct usb_dibusb*) fe->dvb->priv;
+	u8 buf[4];
+	int ret=0;
+	switch (dib->tuner->id) {
+		case DIBUSB_TUNER_COFDM_PANASONIC_ENV77H11D5:
+			ret = panasonic_cofdm_env77h11d5_tda6650_init(fe,buf);
+			break;
+		default:
+			break;
+	}
+
+	if (ret)
+		return ret;
+
+	return dibusb_pll_i2c_helper(dib,pll_buf,buf);
+}
+
+static int dibusb_general_pll_set(struct dvb_frontend *fe,
+		struct dvb_frontend_parameters *fep, u8 pll_buf[5])
+{
+	struct usb_dibusb* dib = (struct usb_dibusb*) fe->dvb->priv;
+	u8 buf[4];
+	int ret=0;
+
+	switch (dib->tuner->id) {
+		case DIBUSB_TUNER_CABLE_THOMSON:
+			ret = thomson_cable_eu_pll_set(fep, buf);
+			break;
+		case DIBUSB_TUNER_COFDM_PANASONIC_ENV57H1XD5:
+			ret = panasonic_cofdm_env57h1xd5_pll_set(fep, buf);
+			break;
+		case DIBUSB_TUNER_CABLE_LG_TDTP_E102P:
+			ret = lg_tdtp_e102p_tua6034(fep, buf);
+			break;
+		case DIBUSB_TUNER_COFDM_PANASONIC_ENV77H11D5:
+			ret = panasonic_cofdm_env77h11d5_tda6650_set(fep,buf);
+			break;
+		default:
+			warn("no pll programming routine found for tuner %d.\n",dib->tuner->id);
+			ret = -ENODEV;
+			break;
+	}
+
+	if (ret)
+		return ret;
+
+	return dibusb_pll_i2c_helper(dib,pll_buf,buf);
+}