merge: http://linuxtv.org/hg/~mkrufky/sms1xxx

From: Mauro Carvalho Chehab <mchehab@infradead.org>



Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>

11 files changed, 651 insertions, 49 deletions

diff --git a/linux/drivers/media/dvb/frontends/Kconfig b/linux/drivers/media/dvb/frontends/Kconfig
index fa7f0c563..774f5c2a7 100644
--- a/linux/drivers/media/dvb/frontends/Kconfig
+++ b/linux/drivers/media/dvb/frontends/Kconfig
@@ -97,9 +97,8 @@ comment "DVB-T (terrestrial) frontends"
 
 config DVB_SP8870
 	tristate "Spase sp8870 based"
-	depends on DVB_CORE && I2C && HOTPLUG
+	depends on DVB_CORE && I2C
 	default m if DVB_FE_CUSTOMISE
-	select FW_LOADER
 	help
 	  A DVB-T tuner module. Say Y when you want to support this frontend.
 
@@ -110,9 +109,8 @@ config DVB_SP8870
 
 config DVB_SP887X
 	tristate "Spase sp887x based"
-	depends on DVB_CORE && I2C && HOTPLUG
+	depends on DVB_CORE && I2C
 	default m if DVB_FE_CUSTOMISE
-	select FW_LOADER
 	help
 	  A DVB-T tuner module. Say Y when you want to support this frontend.
 
@@ -137,9 +135,8 @@ config DVB_CX22702
 
 config DVB_DRX397XD
 	tristate "Micronas DRX3975D/DRX3977D based"
-	depends on DVB_CORE && I2C && HOTPLUG
+	depends on DVB_CORE && I2C
 	default m if DVB_FE_CUSTOMISE
-	select FW_LOADER
 	help
 	  A DVB-T tuner module. Say Y when you want to support this frontend.
 
@@ -158,9 +155,8 @@ config DVB_L64781
 
 config DVB_TDA1004X
 	tristate "Philips TDA10045H/TDA10046H based"
-	depends on DVB_CORE && I2C && HOTPLUG
+	depends on DVB_CORE && I2C
 	default m if DVB_FE_CUSTOMISE
-	select FW_LOADER
 	help
 	  A DVB-T tuner module. Say Y when you want to support this frontend.
 
@@ -225,9 +221,8 @@ config DVB_DIB7000P
 
 config DVB_TDA10048
 	tristate "Philips TDA10048HN based"
-	depends on DVB_CORE && I2C && HOTPLUG
+	depends on DVB_CORE && I2C
 	default m if DVB_FE_CUSTOMISE
-	select FW_LOADER
 	help
 	  A DVB-T tuner module. Say Y when you want to support this frontend.
 
@@ -267,9 +262,8 @@ comment "ATSC (North American/Korean Terrestrial/Cable DTV) frontends"
 
 config DVB_NXT200X
 	tristate "NxtWave Communications NXT2002/NXT2004 based"
-	depends on DVB_CORE && I2C && HOTPLUG
+	depends on DVB_CORE && I2C
 	default m if DVB_FE_CUSTOMISE
-	select FW_LOADER
 	help
 	  An ATSC 8VSB and QAM64/256 tuner module. Say Y when you want
 	  to support this frontend.
@@ -282,9 +276,8 @@ config DVB_NXT200X
 
 config DVB_OR51211
 	tristate "Oren OR51211 based"
-	depends on DVB_CORE && I2C && HOTPLUG
+	depends on DVB_CORE && I2C
 	default m if DVB_FE_CUSTOMISE
-	select FW_LOADER
 	help
 	  An ATSC 8VSB tuner module. Say Y when you want to support this frontend.
 
@@ -295,9 +288,8 @@ config DVB_OR51211
 
 config DVB_OR51132
 	tristate "Oren OR51132 based"
-	depends on DVB_CORE && I2C && HOTPLUG
+	depends on DVB_CORE && I2C
 	default m if DVB_FE_CUSTOMISE
-	select FW_LOADER
 	help
 	  An ATSC 8VSB and QAM64/256 tuner module. Say Y when you want
 	  to support this frontend.
@@ -311,9 +303,8 @@ config DVB_OR51132
 
 config DVB_BCM3510
 	tristate "Broadcom BCM3510"
-	depends on DVB_CORE && I2C && HOTPLUG
+	depends on DVB_CORE && I2C
 	default m if DVB_FE_CUSTOMISE
-	select FW_LOADER
 	help
 	  An ATSC 8VSB/16VSB and QAM64/256 tuner module. Say Y when you want to
 	  support this frontend.
@@ -394,4 +385,11 @@ config DVB_ISL6421
 	help
 	  An SEC control chip.
 
+config DVB_LGS8GL5
+	tristate "Silicon Legend LGS-8GL5 demodulator (OFDM)"
+	depends on DVB_CORE && I2C
+	default m if DVB_FE_CUSTOMISE
+	help
+	  A DMB-TH tuner module. Say Y when you want to support this frontend.
+
 endmenu
diff --git a/linux/drivers/media/dvb/frontends/Makefile b/linux/drivers/media/dvb/frontends/Makefile
index 028da5561..262eaa429 100644
--- a/linux/drivers/media/dvb/frontends/Makefile
+++ b/linux/drivers/media/dvb/frontends/Makefile
@@ -48,3 +48,4 @@ obj-$(CONFIG_DVB_TUNER_ITD1000) += itd1000.o
 obj-$(CONFIG_DVB_AU8522) += au8522.o
 obj-$(CONFIG_DVB_TDA10048) += tda10048.o
 obj-$(CONFIG_DVB_S5H1411) += s5h1411.o
+obj-$(CONFIG_DVB_LGS8GL5) += lgs8gl5.o
diff --git a/linux/drivers/media/dvb/frontends/au8522.c b/linux/drivers/media/dvb/frontends/au8522.c
index 37f6260e1..d946c8beb 100644
--- a/linux/drivers/media/dvb/frontends/au8522.c
+++ b/linux/drivers/media/dvb/frontends/au8522.c
@@ -304,6 +304,43 @@ static int au8522_mse2snr_lookup(struct mse2snr_tab *tab, int sz, int mse,
 	return ret;
 }
 
+static int au8522_set_if(struct dvb_frontend *fe, enum au8522_if_freq if_freq)
+{
+	struct au8522_state *state = fe->demodulator_priv;
+	u8 r0b5, r0b6, r0b7;
+	char *ifmhz;
+
+	switch (if_freq) {
+	case AU8522_IF_3_25MHZ:
+		ifmhz = "3.25";
+		r0b5 = 0x00;
+		r0b6 = 0x3d;
+		r0b7 = 0xa0;
+		break;
+	case AU8522_IF_4MHZ:
+		ifmhz = "4.00";
+		r0b5 = 0x00;
+		r0b6 = 0x4b;
+		r0b7 = 0xd9;
+		break;
+	case AU8522_IF_6MHZ:
+		ifmhz = "6.00";
+		r0b5 = 0xfb;
+		r0b6 = 0x8e;
+		r0b7 = 0x39;
+		break;
+	default:
+		dprintk("%s() IF Frequency not supported\n", __func__);
+		return -EINVAL;
+	}
+	dprintk("%s() %s MHz\n", __func__, ifmhz);
+	au8522_writereg(state, 0x80b5, r0b5);
+	au8522_writereg(state, 0x80b6, r0b6);
+	au8522_writereg(state, 0x80b7, r0b7);
+
+	return 0;
+}
+
 /* VSB Modulation table */
 static struct {
 	u16 reg;
@@ -334,9 +371,6 @@ static struct {
 	{ 0x80af, 0x66 },
 	{ 0x821b, 0xcc },
 	{ 0x821d, 0x80 },
-	{ 0x80b5, 0xfb },
-	{ 0x80b6, 0x8e },
-	{ 0x80b7, 0x39 },
 	{ 0x80a4, 0xe8 },
 	{ 0x8231, 0x13 },
 };
@@ -350,9 +384,6 @@ static struct {
 	{ 0x80a4, 0x00 },
 	{ 0x8081, 0xc4 },
 	{ 0x80a5, 0x40 },
-	{ 0x80b5, 0xfb },
-	{ 0x80b6, 0x8e },
-	{ 0x80b7, 0x39 },
 	{ 0x80aa, 0x77 },
 	{ 0x80ad, 0x77 },
 	{ 0x80a6, 0x67 },
@@ -438,6 +469,7 @@ static int au8522_enable_modulation(struct dvb_frontend *fe,
 			au8522_writereg(state,
 				VSB_mod_tab[i].reg,
 				VSB_mod_tab[i].data);
+		au8522_set_if(fe, state->config->vsb_if);
 		break;
 	case QAM_64:
 	case QAM_256:
@@ -446,6 +478,7 @@ static int au8522_enable_modulation(struct dvb_frontend *fe,
 			au8522_writereg(state,
 				QAM_mod_tab[i].reg,
 				QAM_mod_tab[i].data);
+		au8522_set_if(fe, state->config->qam_if);
 		break;
 	default:
 		dprintk("%s() Invalid modulation\n", __func__);
diff --git a/linux/drivers/media/dvb/frontends/au8522.h b/linux/drivers/media/dvb/frontends/au8522.h
index d7affa3cd..afc9af26e 100644
--- a/linux/drivers/media/dvb/frontends/au8522.h
+++ b/linux/drivers/media/dvb/frontends/au8522.h
@@ -24,6 +24,12 @@
 
 #include <linux/dvb/frontend.h>
 
+enum au8522_if_freq {
+	AU8522_IF_6MHZ = 0,
+	AU8522_IF_4MHZ,
+	AU8522_IF_3_25MHZ,
+};
+
 struct au8522_config {
 	/* the demodulator's i2c address */
 	u8 demod_address;
@@ -32,6 +38,9 @@ struct au8522_config {
 #define AU8522_TUNERLOCKING 0
 #define AU8522_DEMODLOCKING 1
 	u8 status_mode;
+
+	enum au8522_if_freq vsb_if;
+	enum au8522_if_freq qam_if;
 };
 
 #if defined(CONFIG_DVB_AU8522) || 				\
diff --git a/linux/drivers/media/dvb/frontends/dib0070.h b/linux/drivers/media/dvb/frontends/dib0070.h
index 3eedfdf50..21f2c5161 100644
--- a/linux/drivers/media/dvb/frontends/dib0070.h
+++ b/linux/drivers/media/dvb/frontends/dib0070.h
@@ -41,6 +41,7 @@ struct dib0070_config {
 extern struct dvb_frontend *dib0070_attach(struct dvb_frontend *fe,
 					   struct i2c_adapter *i2c,
 					   struct dib0070_config *cfg);
+extern u16 dib0070_wbd_offset(struct dvb_frontend *);
 #else
 static inline struct dvb_frontend *dib0070_attach(struct dvb_frontend *fe,
 						  struct i2c_adapter *i2c,
@@ -49,9 +50,14 @@ static inline struct dvb_frontend *dib0070_attach(struct dvb_frontend *fe,
 	printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
 	return NULL;
 }
+
+static inline u16 dib0070_wbd_offset(struct dvb_frontend *fe)
+{
+	printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
+	return -ENODEV;
+}
 #endif
 
 extern void dib0070_ctrl_agc_filter(struct dvb_frontend *, uint8_t open);
-extern u16 dib0070_wbd_offset(struct dvb_frontend *);
 
 #endif
diff --git a/linux/drivers/media/dvb/frontends/dib7000p.c b/linux/drivers/media/dvb/frontends/dib7000p.c
index c74d373b6..ebb7594e3 100644
--- a/linux/drivers/media/dvb/frontends/dib7000p.c
+++ b/linux/drivers/media/dvb/frontends/dib7000p.c
@@ -1359,7 +1359,8 @@ struct dvb_frontend * dib7000p_attach(struct i2c_adapter *i2c_adap, u8 i2c_addr,
 	/* Ensure the output mode remains at the previous default if it's
 	 * not specifically set by the caller.
 	 */
-	if (st->cfg.output_mode != OUTMODE_MPEG2_SERIAL)
+	if ((st->cfg.output_mode != OUTMODE_MPEG2_SERIAL) &&
+	    (st->cfg.output_mode != OUTMODE_MPEG2_PAR_GATED_CLK))
 		st->cfg.output_mode = OUTMODE_MPEG2_FIFO;
 
 	demod                   = &st->demod;
diff --git a/linux/drivers/media/dvb/frontends/dib7000p.h b/linux/drivers/media/dvb/frontends/dib7000p.h
index 07c4d12ed..3e8126857 100644
--- a/linux/drivers/media/dvb/frontends/dib7000p.h
+++ b/linux/drivers/media/dvb/frontends/dib7000p.h
@@ -41,6 +41,14 @@ struct dib7000p_config {
 extern struct dvb_frontend *dib7000p_attach(struct i2c_adapter *i2c_adap,
 					    u8 i2c_addr,
 					    struct dib7000p_config *cfg);
+extern struct i2c_adapter *dib7000p_get_i2c_master(struct dvb_frontend *,
+						   enum dibx000_i2c_interface,
+						   int);
+extern int dib7000p_i2c_enumeration(struct i2c_adapter *i2c,
+				    int no_of_demods, u8 default_addr,
+				    struct dib7000p_config cfg[]);
+extern int dib7000p_set_gpio(struct dvb_frontend *, u8 num, u8 dir, u8 val);
+extern int dib7000p_set_wbd_ref(struct dvb_frontend *, u16 value);
 #else
 static inline struct dvb_frontend *dib7000p_attach(struct i2c_adapter *i2c_adap,
 						   u8 i2c_addr,
@@ -49,13 +57,36 @@ static inline struct dvb_frontend *dib7000p_attach(struct i2c_adapter *i2c_adap,
 	printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
 	return NULL;
 }
-#endif
 
-extern int dib7000p_i2c_enumeration(struct i2c_adapter *i2c, int no_of_demods, u8 default_addr, struct dib7000p_config cfg[]);
+static inline
+struct i2c_adapter *dib7000p_get_i2c_master(struct dvb_frontend *fe,
+					    enum dibx000_i2c_interface i, int x)
+{
+	printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
+	return NULL;
+}
+
+extern int dib7000p_i2c_enumeration(struct i2c_adapter *i2c,
+				    int no_of_demods, u8 default_addr,
+				    struct dib7000p_config cfg[])
+{
+	printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
+	return -ENODEV;
+}
+
+extern int dib7000p_set_gpio(struct dvb_frontend *fe, u8 num, u8 dir, u8 val)
+{
+	printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
+	return -ENODEV;
+}
+
+extern int dib7000p_set_wbd_ref(struct dvb_frontend *fe, u16 value)
+{
+	printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
+	return -ENODEV;
+}
+#endif
 
-extern struct i2c_adapter * dib7000p_get_i2c_master(struct dvb_frontend *, enum dibx000_i2c_interface, int);
 extern int dib7000pc_detection(struct i2c_adapter *i2c_adap);
-extern int dib7000p_set_gpio(struct dvb_frontend *, u8 num, u8 dir, u8 val);
-extern int dib7000p_set_wbd_ref(struct dvb_frontend *, u16 value);
 
 #endif
diff --git a/linux/drivers/media/dvb/frontends/drx397xD.c b/linux/drivers/media/dvb/frontends/drx397xD.c
index 52a9a6553..f1ea891d7 100644
--- a/linux/drivers/media/dvb/frontends/drx397xD.c
+++ b/linux/drivers/media/dvb/frontends/drx397xD.c
@@ -97,7 +97,7 @@ static void drx_release_fw(struct drx397xD_state *s)
 {
 	fw_ix_t ix = s->chip_rev;
 
-	pr_debug("%s\n", __FUNCTION__);
+	pr_debug("%s\n", __func__);
 
 	write_lock(&fw[ix].lock);
 	if (fw[ix].refcnt) {
@@ -114,7 +114,7 @@ static int drx_load_fw(struct drx397xD_state *s, fw_ix_t ix)
 	size_t size, len;
 	int i = 0, j, rc = -EINVAL;
 
-	pr_debug("%s\n", __FUNCTION__);
+	pr_debug("%s\n", __func__);
 
 	if (ix < 0 || ix >= ARRAY_SIZE(fw))
 		return -EINVAL;
@@ -198,10 +198,10 @@ static int write_fw(struct drx397xD_state *s, blob_ix_t ix)
 	int len, rc = 0, i = 0;
 
 	if (ix < 0 || ix >= ARRAY_SIZE(blob_name)) {
-		pr_debug("%s drx_fw_ix_t out of range\n", __FUNCTION__);
+		pr_debug("%s drx_fw_ix_t out of range\n", __func__);
 		return -EINVAL;
 	}
-	pr_debug("%s %s\n", __FUNCTION__, blob_name[ix]);
+	pr_debug("%s %s\n", __func__, blob_name[ix]);
 
 	read_lock(&fw[s->chip_rev].lock);
 	data = fw[s->chip_rev].data[ix];
@@ -306,7 +306,7 @@ static int PLL_Set(struct drx397xD_state *s,
 	u32 f_tuner, f = fep->frequency;
 	int rc;
 
-	pr_debug("%s\n", __FUNCTION__);
+	pr_debug("%s\n", __func__);
 
 	if ((f > s->frontend.ops.tuner_ops.info.frequency_max) ||
 	    (f < s->frontend.ops.tuner_ops.info.frequency_min))
@@ -326,7 +326,7 @@ static int PLL_Set(struct drx397xD_state *s,
 		return rc;
 
 	*df_tuner = f_tuner - f;
-	pr_debug("%s requested %d [Hz] tuner %d [Hz]\n", __FUNCTION__, f,
+	pr_debug("%s requested %d [Hz] tuner %d [Hz]\n", __func__, f,
 		 f_tuner);
 
 	return 0;
@@ -341,7 +341,7 @@ static int SC_WaitForReady(struct drx397xD_state *s)
 	int cnt = 1000;
 	int rc;
 
-	pr_debug("%s\n", __FUNCTION__);
+	pr_debug("%s\n", __func__);
 
 	while (cnt--) {
 		rc = RD16(s, 0x820043);
@@ -355,7 +355,7 @@ static int SC_SendCommand(struct drx397xD_state *s, int cmd)
 {
 	int rc;
 
-	pr_debug("%s\n", __FUNCTION__);
+	pr_debug("%s\n", __func__);
 
 	WR16(s, 0x820043, cmd);
 	SC_WaitForReady(s);
@@ -369,7 +369,7 @@ static int HI_Command(struct drx397xD_state *s, u16 cmd)
 {
 	int rc, cnt = 1000;
 
-	pr_debug("%s\n", __FUNCTION__);
+	pr_debug("%s\n", __func__);
 
 	rc = WR16(s, 0x420032, cmd);
 	if (rc < 0)
@@ -390,7 +390,7 @@ static int HI_Command(struct drx397xD_state *s, u16 cmd)
 static int HI_CfgCommand(struct drx397xD_state *s)
 {
 
-	pr_debug("%s\n", __FUNCTION__);
+	pr_debug("%s\n", __func__);
 
 	WR16(s, 0x420033, 0x3973);
 	WR16(s, 0x420034, s->config.w50);	// code 4, log 4
@@ -420,7 +420,7 @@ static int SetCfgIfAgc(struct drx397xD_state *s, struct drx397xD_CfgIfAgc *agc)
 	u16 w0C = agc->w0C;
 	int quot, rem, i, rc = -EINVAL;
 
-	pr_debug("%s\n", __FUNCTION__);
+	pr_debug("%s\n", __func__);
 
 	if (agc->w04 > 0x3ff)
 		goto exit_rc;
@@ -479,7 +479,7 @@ static int SetCfgRfAgc(struct drx397xD_state *s, struct drx397xD_CfgRfAgc *agc)
 	u16 w06 = agc->w06;
 	int rc = -1;
 
-	pr_debug("%s %d 0x%x 0x%x\n", __FUNCTION__, agc->d00, w04, w06);
+	pr_debug("%s %d 0x%x 0x%x\n", __func__, agc->d00, w04, w06);
 
 	if (w04 > 0x3ff)
 		goto exit_rc;
@@ -555,7 +555,7 @@ static int CorrectSysClockDeviation(struct drx397xD_state *s)
 	int lockstat;
 	u32 clk, clk_limit;
 
-	pr_debug("%s\n", __FUNCTION__);
+	pr_debug("%s\n", __func__);
 
 	if (s->config.d5C == 0) {
 		EXIT_RC(WR16(s, 0x08200e8, 0x010));
@@ -599,7 +599,7 @@ static int CorrectSysClockDeviation(struct drx397xD_state *s)
 
 	if (clk - s->config.f_osc * 1000 + clk_limit <= 2 * clk_limit) {
 		s->f_osc = clk;
-		pr_debug("%s: osc %d %d [Hz]\n", __FUNCTION__,
+		pr_debug("%s: osc %d %d [Hz]\n", __func__,
 			 s->config.f_osc * 1000, clk - s->config.f_osc * 1000);
 	}
 	rc = WR16(s, 0x08200e8, 0);
@@ -611,7 +611,7 @@ static int ConfigureMPEGOutput(struct drx397xD_state *s, int type)
 {
 	int rc, si, bp;
 
-	pr_debug("%s\n", __FUNCTION__);
+	pr_debug("%s\n", __func__);
 
 	si = s->config.wA0;
 	if (s->config.w98 == 0) {
@@ -647,7 +647,7 @@ static int drx_tune(struct drx397xD_state *s,
 
 	int rc, df_tuner;
 	int a, b, c, d;
-	pr_debug("%s %d\n", __FUNCTION__, s->config.d60);
+	pr_debug("%s %d\n", __func__, s->config.d60);
 
 	if (s->config.d60 != 2)
 		goto set_tuner;
@@ -1124,7 +1124,7 @@ static int drx397x_init(struct dvb_frontend *fe)
 	struct drx397xD_state *s = fe->demodulator_priv;
 	int rc;
 
-	pr_debug("%s\n", __FUNCTION__);
+	pr_debug("%s\n", __func__);
 
 	s->config.rfagc.d00 = 2;	/* 0x7c */
 	s->config.rfagc.w04 = 0;
diff --git a/linux/drivers/media/dvb/frontends/drx397xD.h b/linux/drivers/media/dvb/frontends/drx397xD.h
index ddc7a0797..2ad1ea0cc 100644
--- a/linux/drivers/media/dvb/frontends/drx397xD.h
+++ b/linux/drivers/media/dvb/frontends/drx397xD.h
@@ -122,7 +122,7 @@ extern struct dvb_frontend* drx397xD_attach(const struct drx397xD_config *config
 static inline struct dvb_frontend* drx397xD_attach(const struct drx397xD_config *config,
 					   struct i2c_adapter *i2c)
 {
-	printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __FUNCTION__);
+	printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
 	return NULL;
 }
 #endif /* CONFIG_DVB_DRX397XD */
diff --git a/linux/drivers/media/dvb/frontends/lgs8gl5.c b/linux/drivers/media/dvb/frontends/lgs8gl5.c
new file mode 100644
index 000000000..380ae1868
--- /dev/null
+++ b/linux/drivers/media/dvb/frontends/lgs8gl5.c
@@ -0,0 +1,478 @@
+/*
+    Legend Silicon LGS-8GL5 DMB-TH OFDM demodulator driver
+
+    Copyright (C) 2008 Sirius International (Hong Kong) Limited
+	Timothy Lee <timothy.lee@siriushk.com>
+
+    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/kernel.h>
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/string.h>
+#include <linux/slab.h>
+#include "dvb_frontend.h"
+#include "lgs8gl5.h"
+
+
+#define REG_RESET		0x02
+#define REG_RESET_OFF			0x01
+#define REG_03			0x03
+#define REG_04			0x04
+#define REG_07			0x07
+#define REG_09			0x09
+#define REG_0A			0x0a
+#define REG_0B			0x0b
+#define REG_0C			0x0c
+#define REG_37			0x37
+#define REG_STRENGTH		0x4b
+#define REG_STRENGTH_MASK		0x7f
+#define REG_STRENGTH_CARRIER		0x80
+#define REG_INVERSION		0x7c
+#define REG_INVERSION_ON		0x80
+#define REG_7D			0x7d
+#define REG_7E			0x7e
+#define REG_A2			0xa2
+#define REG_STATUS		0xa4
+#define REG_STATUS_SYNC		0x04
+#define REG_STATUS_LOCK		0x01
+
+
+struct lgs8gl5_state {
+	struct i2c_adapter *i2c;
+	const struct lgs8gl5_config *config;
+	struct dvb_frontend frontend;
+};
+
+
+static int debug;
+#define dprintk(args...) \
+	do { \
+		if (debug) \
+			printk(KERN_DEBUG "lgs8gl5: " args); \
+	} while (0)
+
+
+/* Writes into demod's register */
+static int
+lgs8gl5_write_reg(struct lgs8gl5_state *state, u8 reg, u8 data)
+{
+	int ret;
+	u8 buf[] = {reg, data};
+	struct i2c_msg msg = {
+		.addr  = state->config->demod_address,
+		.flags = 0,
+		.buf   = buf,
+		.len   = 2
+	};
+
+	ret = i2c_transfer(state->i2c, &msg, 1);
+	if (ret != 1)
+		dprintk("%s: error (reg=0x%02x, val=0x%02x, ret=%i)\n",
+			__func__, reg, data, ret);
+	return (ret != 1) ? -1 : 0;
+}
+
+
+/* Reads from demod's register */
+static int
+lgs8gl5_read_reg(struct lgs8gl5_state *state, u8 reg)
+{
+	int ret;
+	u8 b0[] = {reg};
+	u8 b1[] = {0};
+	struct i2c_msg msg[2] = {
+		{
+			.addr  = state->config->demod_address,
+			.flags = 0,
+			.buf   = b0,
+			.len   = 1
+		},
+		{
+			.addr  = state->config->demod_address,
+			.flags = I2C_M_RD,
+			.buf   = b1,
+			.len   = 1
+		}
+	};
+
+	ret = i2c_transfer(state->i2c, msg, 2);
+	if (ret != 2)
+		return -EIO;
+
+	return b1[0];
+}
+
+
+static int
+lgs8gl5_update_reg(struct lgs8gl5_state *state, u8 reg, u8 data)
+{
+	lgs8gl5_read_reg(state, reg);
+	lgs8gl5_write_reg(state, reg, data);
+	return 0;
+}
+
+
+/* Writes into alternate device's register */
+/* TODO:  Find out what that device is for! */
+static int
+lgs8gl5_update_alt_reg(struct lgs8gl5_state *state, u8 reg, u8 data)
+{
+	int ret;
+	u8 b0[] = {reg};
+	u8 b1[] = {0};
+	u8 b2[] = {reg, data};
+	struct i2c_msg msg[3] = {
+		{
+			.addr  = state->config->demod_address + 2,
+			.flags = 0,
+			.buf   = b0,
+			.len   = 1
+		},
+		{
+			.addr  = state->config->demod_address + 2,
+			.flags = I2C_M_RD,
+			.buf   = b1,
+			.len   = 1
+		},
+		{
+			.addr  = state->config->demod_address + 2,
+			.flags = 0,
+			.buf   = b2,
+			.len   = 2
+		},
+	};
+
+	ret = i2c_transfer(state->i2c, msg, 3);
+	return (ret != 3) ? -1 : 0;
+}
+
+
+static void
+lgs8gl5_soft_reset(struct lgs8gl5_state *state)
+{
+	u8 val;
+
+	dprintk("%s\n", __func__);
+
+	val = lgs8gl5_read_reg(state, REG_RESET);
+	lgs8gl5_write_reg(state, REG_RESET, val & ~REG_RESET_OFF);
+	lgs8gl5_write_reg(state, REG_RESET, val | REG_RESET_OFF);
+	msleep(5);
+}
+
+#if 0
+static int
+lgs8gl5_set_inversion(struct lgs8gl5_state *state, int inversion)
+{
+	u8 val;
+
+	dprintk("%s\n", __func__);
+
+	switch (inversion) {
+	case INVERSION_AUTO:
+		return -EOPNOTSUPP;
+	case INVERSION_ON:
+		val = lgs8gl5_read_reg(state, REG_INVERSION);
+		return lgs8gl5_write_reg(state, REG_INVERSION,
+			val | REG_INVERSION_ON);
+	case INVERSION_OFF:
+		val = lgs8gl5_read_reg(state, REG_INVERSION);
+		return lgs8gl5_write_reg(state, REG_INVERSION,
+			val & ~REG_INVERSION_ON);
+	default:
+		return -EINVAL;
+	}
+}
+#endif
+
+/* Starts demodulation */
+static void
+lgs8gl5_start_demod(struct lgs8gl5_state *state)
+{
+	u8  val;
+	int n;
+
+	dprintk("%s\n", __func__);
+
+	lgs8gl5_update_alt_reg(state, 0xc2, 0x28);
+	lgs8gl5_soft_reset(state);
+	lgs8gl5_update_reg(state, REG_07, 0x10);
+	lgs8gl5_update_reg(state, REG_07, 0x10);
+	lgs8gl5_write_reg(state, REG_09, 0x0e);
+	lgs8gl5_write_reg(state, REG_0A, 0xe5);
+	lgs8gl5_write_reg(state, REG_0B, 0x35);
+	lgs8gl5_write_reg(state, REG_0C, 0x30);
+
+	lgs8gl5_update_reg(state, REG_03, 0x00);
+	lgs8gl5_update_reg(state, REG_7E, 0x01);
+	lgs8gl5_update_alt_reg(state, 0xc5, 0x00);
+	lgs8gl5_update_reg(state, REG_04, 0x02);
+	lgs8gl5_update_reg(state, REG_37, 0x01);
+	lgs8gl5_soft_reset(state);
+
+	/* Wait for carrier */
+	for (n = 0;  n < 10;  n++) {
+		val = lgs8gl5_read_reg(state, REG_STRENGTH);
+		dprintk("Wait for carrier[%d] 0x%02X\n", n, val);
+		if (val & REG_STRENGTH_CARRIER)
+			break;
+		msleep(4);
+	}
+	if (!(val & REG_STRENGTH_CARRIER))
+		return;
+
+	/* Wait for lock */
+	for (n = 0;  n < 20;  n++) {
+		val = lgs8gl5_read_reg(state, REG_STATUS);
+		dprintk("Wait for lock[%d] 0x%02X\n", n, val);
+		if (val & REG_STATUS_LOCK)
+			break;
+		msleep(12);
+	}
+	if (!(val & REG_STATUS_LOCK))
+		return;
+
+	lgs8gl5_write_reg(state, REG_7D, lgs8gl5_read_reg(state, REG_A2));
+	lgs8gl5_soft_reset(state);
+}
+
+
+static int
+lgs8gl5_init(struct dvb_frontend *fe)
+{
+	struct lgs8gl5_state *state = fe->demodulator_priv;
+
+	dprintk("%s\n", __func__);
+
+	lgs8gl5_update_alt_reg(state, 0xc2, 0x28);
+	lgs8gl5_soft_reset(state);
+	lgs8gl5_update_reg(state, REG_07, 0x10);
+	lgs8gl5_update_reg(state, REG_07, 0x10);
+	lgs8gl5_write_reg(state, REG_09, 0x0e);
+	lgs8gl5_write_reg(state, REG_0A, 0xe5);
+	lgs8gl5_write_reg(state, REG_0B, 0x35);
+	lgs8gl5_write_reg(state, REG_0C, 0x30);
+
+	return 0;
+}
+
+
+static int
+lgs8gl5_read_status(struct dvb_frontend *fe, fe_status_t *status)
+{
+	struct lgs8gl5_state *state = fe->demodulator_priv;
+	u8 level = lgs8gl5_read_reg(state, REG_STRENGTH);
+	u8 flags = lgs8gl5_read_reg(state, REG_STATUS);
+
+	*status = 0;
+
+	if ((level & REG_STRENGTH_MASK) > 0)
+		*status |= FE_HAS_SIGNAL;
+	if (level & REG_STRENGTH_CARRIER)
+		*status |= FE_HAS_CARRIER;
+	if (flags & REG_STATUS_SYNC)
+		*status |= FE_HAS_SYNC;
+	if (flags & REG_STATUS_LOCK)
+		*status |= FE_HAS_LOCK;
+
+	return 0;
+}
+
+
+static int
+lgs8gl5_read_ber(struct dvb_frontend *fe, u32 *ber)
+{
+	*ber = 0;
+
+	return 0;
+}
+
+
+static int
+lgs8gl5_read_signal_strength(struct dvb_frontend *fe, u16 *signal_strength)
+{
+	struct lgs8gl5_state *state = fe->demodulator_priv;
+	u8 level = lgs8gl5_read_reg(state, REG_STRENGTH);
+	*signal_strength = (level & REG_STRENGTH_MASK) << 8;
+
+	return 0;
+}
+
+
+static int
+lgs8gl5_read_snr(struct dvb_frontend *fe, u16 *snr)
+{
+	struct lgs8gl5_state *state = fe->demodulator_priv;
+	u8 level = lgs8gl5_read_reg(state, REG_STRENGTH);
+	*snr = (level & REG_STRENGTH_MASK) << 8;
+
+	return 0;
+}
+
+
+static int
+lgs8gl5_read_ucblocks(struct dvb_frontend *fe, u32 *ucblocks)
+{
+	*ucblocks = 0;
+
+	return 0;
+}
+
+
+static int
+lgs8gl5_set_frontend(struct dvb_frontend *fe,
+		struct dvb_frontend_parameters *p)
+{
+	struct lgs8gl5_state *state = fe->demodulator_priv;
+
+	dprintk("%s\n", __func__);
+
+	if (p->u.ofdm.bandwidth != BANDWIDTH_8_MHZ)
+		return -EINVAL;
+
+	if (fe->ops.tuner_ops.set_params) {
+		fe->ops.tuner_ops.set_params(fe, p);
+		if (fe->ops.i2c_gate_ctrl)
+			fe->ops.i2c_gate_ctrl(fe, 0);
+	}
+
+	/* lgs8gl5_set_inversion(state, p->inversion); */
+
+	lgs8gl5_start_demod(state);
+
+	return 0;
+}
+
+
+static int
+lgs8gl5_get_frontend(struct dvb_frontend *fe,
+		struct dvb_frontend_parameters *p)
+{
+	struct lgs8gl5_state *state = fe->demodulator_priv;
+	u8 inv = lgs8gl5_read_reg(state, REG_INVERSION);
+	struct dvb_ofdm_parameters *o = &p->u.ofdm;
+
+	p->inversion = (inv & REG_INVERSION_ON) ? INVERSION_ON : INVERSION_OFF;
+
+	o->code_rate_HP = FEC_1_2;
+	o->code_rate_LP = FEC_7_8;
+	o->guard_interval = GUARD_INTERVAL_1_32;
+	o->transmission_mode = TRANSMISSION_MODE_2K;
+	o->constellation = QAM_64;
+	o->hierarchy_information = HIERARCHY_NONE;
+	o->bandwidth = BANDWIDTH_8_MHZ;
+
+	return 0;
+}
+
+
+static int
+lgs8gl5_get_tune_settings(struct dvb_frontend *fe,
+		struct dvb_frontend_tune_settings *fesettings)
+{
+	fesettings->min_delay_ms = 240;
+	fesettings->step_size    = 0;
+	fesettings->max_drift    = 0;
+	return 0;
+}
+
+
+static void
+lgs8gl5_release(struct dvb_frontend *fe)
+{
+	struct lgs8gl5_state *state = fe->demodulator_priv;
+	kfree(state);
+}
+
+
+static struct dvb_frontend_ops lgs8gl5_ops;
+
+
+struct dvb_frontend*
+lgs8gl5_attach(const struct lgs8gl5_config *config, struct i2c_adapter *i2c)
+{
+	struct lgs8gl5_state *state = NULL;
+
+	dprintk("%s\n", __func__);
+
+	/* Allocate memory for the internal state */
+	state = kmalloc(sizeof(struct lgs8gl5_state), GFP_KERNEL);
+	if (state == NULL)
+		goto error;
+
+	/* Setup the state */
+	state->config = config;
+	state->i2c    = i2c;
+
+	/* Check if the demod is there */
+	if (lgs8gl5_read_reg(state, REG_RESET) < 0)
+		goto error;
+
+	/* Create dvb_frontend */
+	memcpy(&state->frontend.ops, &lgs8gl5_ops,
+		sizeof(struct dvb_frontend_ops));
+	state->frontend.demodulator_priv = state;
+	return &state->frontend;
+
+error:
+	kfree(state);
+	return NULL;
+}
+EXPORT_SYMBOL(lgs8gl5_attach);
+
+
+static struct dvb_frontend_ops lgs8gl5_ops = {
+	.info = {
+		.name			= "Legend Silicon LGS-8GL5 DMB-TH",
+		.type			= FE_OFDM,
+		.frequency_min		= 474000000,
+		.frequency_max		= 858000000,
+		.frequency_stepsize	= 10000,
+		.frequency_tolerance	= 0,
+		.caps = FE_CAN_FEC_AUTO |
+			FE_CAN_QPSK | FE_CAN_QAM_16 | FE_CAN_QAM_32 |
+			FE_CAN_QAM_64 | FE_CAN_QAM_AUTO |
+			FE_CAN_TRANSMISSION_MODE_AUTO |
+			FE_CAN_BANDWIDTH_AUTO |
+			FE_CAN_GUARD_INTERVAL_AUTO |
+			FE_CAN_HIERARCHY_AUTO |
+			FE_CAN_RECOVER
+	},
+
+	.release = lgs8gl5_release,
+
+	.init = lgs8gl5_init,
+
+	.set_frontend = lgs8gl5_set_frontend,
+	.get_frontend = lgs8gl5_get_frontend,
+	.get_tune_settings = lgs8gl5_get_tune_settings,
+
+	.read_status = lgs8gl5_read_status,
+	.read_ber = lgs8gl5_read_ber,
+	.read_signal_strength = lgs8gl5_read_signal_strength,
+	.read_snr = lgs8gl5_read_snr,
+	.read_ucblocks = lgs8gl5_read_ucblocks,
+};
+
+
+module_param(debug, int, 0644);
+MODULE_PARM_DESC(debug, "Turn on/off frontend debugging (default:off).");
+
+MODULE_DESCRIPTION("Legend Silicon LGS-8GL5 DMB-TH Demodulator driver");
+MODULE_AUTHOR("Timothy Lee");
+MODULE_LICENSE("GPL");
diff --git a/linux/drivers/media/dvb/frontends/lgs8gl5.h b/linux/drivers/media/dvb/frontends/lgs8gl5.h
new file mode 100644
index 000000000..d14176787
--- /dev/null
+++ b/linux/drivers/media/dvb/frontends/lgs8gl5.h
@@ -0,0 +1,45 @@
+/*
+    Legend Silicon LGS-8GL5 DMB-TH OFDM demodulator driver
+
+    Copyright (C) 2008 Sirius International (Hong Kong) Limited
+	Timothy Lee <timothy.lee@siriushk.com>
+
+    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.
+
+*/
+
+#ifndef LGS8GL5_H
+#define LGS8GL5_H
+
+#include <linux/dvb/frontend.h>
+
+struct lgs8gl5_config {
+	/* the demodulator's i2c address */
+	u8 demod_address;
+};
+
+#if defined(CONFIG_DVB_LGS8GL5) || \
+	(defined(CONFIG_DVB_LGS8GL5_MODULE) && defined(MODULE))
+extern struct dvb_frontend *lgs8gl5_attach(
+	const struct lgs8gl5_config *config, struct i2c_adapter *i2c);
+#else
+static inline struct dvb_frontend *lgs8gl5_attach(
+	const struct lgs8gl5_config *config, struct i2c_adapter *i2c) {
+	printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
+	return NULL;
+}
+#endif /* CONFIG_DVB_LGS8GL5 */
+
+#endif /* LGS8GL5_H */