V4L/DVB (6962): tda18271: allow device-specific configuration of IF frequency and std bits

Allow drivers to pass device-specific configuration parameters during attach.

If these parameters are omitted, default values will be used.

Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>

4 files changed, 115 insertions, 38 deletions

diff --git a/drivers/media/dvb/frontends/tda18271-fe.c b/drivers/media/dvb/frontends/tda18271-fe.c
index 537d520de22..b17ab4ace08 100644
--- a/drivers/media/dvb/frontends/tda18271-fe.c
+++ b/drivers/media/dvb/frontends/tda18271-fe.c
@@ -768,12 +768,12 @@ static int tda18271_set_params(struct dvb_frontend *fe,
 			       struct dvb_frontend_parameters *params)
 {
 	struct tda18271_priv *priv = fe->tuner_priv;
-	struct tda18271_std_map *std_map = priv->std;
+	struct tda18271_std_map *std_map = &priv->std;
 	u8 std;
 	u32 bw, sgIF = 0;
 	u32 freq = params->frequency;
 
-	BUG_ON(!priv->tune || !priv->std);
+	BUG_ON(!priv->tune);
 
 	priv->mode = TDA18271_DIGITAL;
 
@@ -832,12 +832,12 @@ static int tda18271_set_analog_params(struct dvb_frontend *fe,
 				      struct analog_parameters *params)
 {
 	struct tda18271_priv *priv = fe->tuner_priv;
-	struct tda18271_std_map *std_map = priv->std;
+	struct tda18271_std_map *std_map = &priv->std;
 	char *mode;
 	u8 std;
 	u32 sgIF, freq = params->frequency * 62500;
 
-	BUG_ON(!priv->tune || !priv->std);
+	BUG_ON(!priv->tune);
 
 	priv->mode = TDA18271_ANALOG;
 
@@ -901,6 +901,69 @@ static int tda18271_get_bandwidth(struct dvb_frontend *fe, u32 *bandwidth)
 	return 0;
 }
 
+/* ------------------------------------------------------------------ */
+
+#define tda18271_update_std(std_cfg, name) do {				\
+	if (map->std_cfg.if_freq + map->std_cfg.std_bits > 0) {		\
+		tda_dbg("Using custom std config for %s\n", name);	\
+		memcpy(&std->std_cfg, &map->std_cfg,			\
+			sizeof(struct tda18271_std_map_item));		\
+	} } while (0)
+
+#define tda18271_dump_std_item(std_cfg, name) do {			\
+	tda_dbg("(%s) if freq = %d, std bits = 0x%02x\n",		\
+		name, std->std_cfg.if_freq, std->std_cfg.std_bits);	\
+	} while (0)
+
+static int tda18271_dump_std_map(struct dvb_frontend *fe)
+{
+	struct tda18271_priv *priv = fe->tuner_priv;
+	struct tda18271_std_map *std = &priv->std;
+
+	tda_dbg("========== STANDARD MAP SETTINGS ==========\n");
+	tda18271_dump_std_item(atv_b,  "pal b");
+	tda18271_dump_std_item(atv_dk, "pal dk");
+	tda18271_dump_std_item(atv_gh, "pal gh");
+	tda18271_dump_std_item(atv_i,  "pal i");
+	tda18271_dump_std_item(atv_l,  "pal l");
+	tda18271_dump_std_item(atv_lc, "pal l'");
+	tda18271_dump_std_item(atv_mn, "atv mn");
+	tda18271_dump_std_item(atsc_6, "atsc 6");
+	tda18271_dump_std_item(dvbt_6, "dvbt 6");
+	tda18271_dump_std_item(dvbt_7, "dvbt 7");
+	tda18271_dump_std_item(dvbt_8, "dvbt 8");
+	tda18271_dump_std_item(qam_6,  "qam 6");
+	tda18271_dump_std_item(qam_8,  "qam 8");
+
+	return 0;
+}
+
+static int tda18271_update_std_map(struct dvb_frontend *fe,
+				   struct tda18271_std_map *map)
+{
+	struct tda18271_priv *priv = fe->tuner_priv;
+	struct tda18271_std_map *std = &priv->std;
+
+	if (!map)
+		return -EINVAL;
+
+	tda18271_update_std(atv_b,  "atv b");
+	tda18271_update_std(atv_dk, "atv dk");
+	tda18271_update_std(atv_gh, "atv gh");
+	tda18271_update_std(atv_i,  "atv i");
+	tda18271_update_std(atv_l,  "atv l");
+	tda18271_update_std(atv_lc, "atv l'");
+	tda18271_update_std(atv_mn, "atv mn");
+	tda18271_update_std(atsc_6, "atsc 6");
+	tda18271_update_std(dvbt_6, "dvbt 6");
+	tda18271_update_std(dvbt_7, "dvbt 7");
+	tda18271_update_std(dvbt_8, "dvbt 8");
+	tda18271_update_std(qam_6,  "qam 6");
+	tda18271_update_std(qam_8,  "qam 8");
+
+	return 0;
+}
+
 static int tda18271_get_id(struct dvb_frontend *fe)
 {
 	struct tda18271_priv *priv = fe->tuner_priv;
@@ -951,7 +1014,7 @@ static struct dvb_tuner_ops tda18271_tuner_ops = {
 
 struct dvb_frontend *tda18271_attach(struct dvb_frontend *fe, u8 addr,
 				     struct i2c_adapter *i2c,
-				     enum tda18271_i2c_gate gate)
+				     struct tda18271_config *cfg)
 {
 	struct tda18271_priv *priv = NULL;
 
@@ -961,7 +1024,7 @@ struct dvb_frontend *tda18271_attach(struct dvb_frontend *fe, u8 addr,
 
 	priv->i2c_addr = addr;
 	priv->i2c_adap = i2c;
-	priv->gate = gate;
+	priv->gate = (cfg) ? cfg->gate : TDA18271_GATE_AUTO;
 	priv->cal_initialized = false;
 
 	fe->tuner_priv = priv;
@@ -975,6 +1038,13 @@ struct dvb_frontend *tda18271_attach(struct dvb_frontend *fe, u8 addr,
 	memcpy(&fe->ops.tuner_ops, &tda18271_tuner_ops,
 	       sizeof(struct dvb_tuner_ops));
 
+	/* override default std map with values in config struct */
+	if ((cfg) && (cfg->std_map))
+		tda18271_update_std_map(fe, cfg->std_map);
+
+	if (tda18271_debug & DBG_MAP)
+		tda18271_dump_std_map(fe);
+
 	tda18271_init_regs(fe);
 
 	return fe;
diff --git a/drivers/media/dvb/frontends/tda18271-priv.h b/drivers/media/dvb/frontends/tda18271-priv.h
index deb375ea253..6e04258ca6f 100644
--- a/drivers/media/dvb/frontends/tda18271-priv.h
+++ b/drivers/media/dvb/frontends/tda18271-priv.h
@@ -84,27 +84,6 @@ struct tda18271_rf_tracking_filter_cal {
 	int rf_b2;
 };
 
-struct tda18271_std_map_item {
-	u32 if_freq;
-	u8 std_bits;
-};
-
-struct tda18271_std_map {
-	struct tda18271_std_map_item atv_b;
-	struct tda18271_std_map_item atv_dk;
-	struct tda18271_std_map_item atv_gh;
-	struct tda18271_std_map_item atv_i;
-	struct tda18271_std_map_item atv_l;
-	struct tda18271_std_map_item atv_lc;
-	struct tda18271_std_map_item atv_mn;
-	struct tda18271_std_map_item atsc_6;
-	struct tda18271_std_map_item dvbt_6;
-	struct tda18271_std_map_item dvbt_7;
-	struct tda18271_std_map_item dvbt_8;
-	struct tda18271_std_map_item qam_6;
-	struct tda18271_std_map_item qam_8;
-};
-
 enum tda18271_mode {
 	TDA18271_ANALOG,
 	TDA18271_DIGITAL,
@@ -128,8 +107,8 @@ struct tda18271_priv {
 
 	unsigned int cal_initialized:1;
 
-	struct tda18271_std_map *std;
 	struct tda18271_map_layout *maps;
+	struct tda18271_std_map std;
 	struct tda18271_rf_tracking_filter_cal rf_cal_state[8];
 
 	int (*tune) (struct dvb_frontend *fe,
diff --git a/drivers/media/dvb/frontends/tda18271-tables.c b/drivers/media/dvb/frontends/tda18271-tables.c
index 46f1d4ddda3..2f8ea72bcab 100644
--- a/drivers/media/dvb/frontends/tda18271-tables.c
+++ b/drivers/media/dvb/frontends/tda18271-tables.c
@@ -1194,11 +1194,11 @@ static struct tda18271_std_map tda18271c1_std_map = {
 	.atv_l    = { .if_freq = 7750000, .std_bits = 0x0f },
 	.atv_lc   = { .if_freq = 1250000, .std_bits = 0x0f },
 	.atv_mn   = { .if_freq = 5750000, .std_bits = 0x0d },
-	.atsc_6   = { .if_freq = 5380000, .std_bits = 0x1b },
-	.dvbt_6   = { .if_freq = 3300000, .std_bits = 0x1b },
-	.dvbt_7   = { .if_freq = 3800000, .std_bits = 0x19 },
-	.dvbt_8   = { .if_freq = 4300000, .std_bits = 0x1a },
-	.qam_6    = { .if_freq = 4000000, .std_bits = 0x18 },
+	.atsc_6   = { .if_freq = 3250000, .std_bits = 0x1c },
+	.dvbt_6   = { .if_freq = 3300000, .std_bits = 0x1c },
+	.dvbt_7   = { .if_freq = 3800000, .std_bits = 0x1d },
+	.dvbt_8   = { .if_freq = 4300000, .std_bits = 0x1e },
+	.qam_6    = { .if_freq = 4000000, .std_bits = 0x1d },
 	.qam_8    = { .if_freq = 5000000, .std_bits = 0x1f },
 };
 
@@ -1210,7 +1210,7 @@ static struct tda18271_std_map tda18271c2_std_map = {
 	.atv_l    = { .if_freq = 6900000, .std_bits = 0x0e },
 	.atv_lc   = { .if_freq = 1250000, .std_bits = 0x0e },
 	.atv_mn   = { .if_freq = 5400000, .std_bits = 0x0c },
-	.atsc_6   = { .if_freq = 5380000, .std_bits = 0x1b },
+	.atsc_6   = { .if_freq = 3250000, .std_bits = 0x1c },
 	.dvbt_6   = { .if_freq = 3300000, .std_bits = 0x1c },
 	.dvbt_7   = { .if_freq = 3500000, .std_bits = 0x1c },
 	.dvbt_8   = { .if_freq = 4000000, .std_bits = 0x1d },
@@ -1256,11 +1256,13 @@ int tda18271_assign_map_layout(struct dvb_frontend *fe)
 	switch (priv->id) {
 	case TDA18271HDC1:
 		priv->maps = &tda18271c1_map_layout;
-		priv->std  = &tda18271c1_std_map;
+		memcpy(&priv->std, &tda18271c1_std_map,
+		       sizeof(struct tda18271_std_map));
 		break;
 	case TDA18271HDC2:
 		priv->maps = &tda18271c2_map_layout;
-		priv->std  = &tda18271c2_std_map;
+		memcpy(&priv->std, &tda18271c2_std_map,
+		       sizeof(struct tda18271_std_map));
 		break;
 	default:
 		ret = -EINVAL;
diff --git a/drivers/media/dvb/frontends/tda18271.h b/drivers/media/dvb/frontends/tda18271.h
index f5356810331..36a3a548a6f 100644
--- a/drivers/media/dvb/frontends/tda18271.h
+++ b/drivers/media/dvb/frontends/tda18271.h
@@ -24,21 +24,47 @@
 #include <linux/i2c.h>
 #include "dvb_frontend.h"
 
+struct tda18271_std_map_item {
+	u32 if_freq;
+	u8 std_bits;
+};
+
+struct tda18271_std_map {
+	struct tda18271_std_map_item atv_b;
+	struct tda18271_std_map_item atv_dk;
+	struct tda18271_std_map_item atv_gh;
+	struct tda18271_std_map_item atv_i;
+	struct tda18271_std_map_item atv_l;
+	struct tda18271_std_map_item atv_lc;
+	struct tda18271_std_map_item atv_mn;
+	struct tda18271_std_map_item atsc_6;
+	struct tda18271_std_map_item dvbt_6;
+	struct tda18271_std_map_item dvbt_7;
+	struct tda18271_std_map_item dvbt_8;
+	struct tda18271_std_map_item qam_6;
+	struct tda18271_std_map_item qam_8;
+};
+
 enum tda18271_i2c_gate {
 	TDA18271_GATE_AUTO = 0,
 	TDA18271_GATE_ANALOG,
 	TDA18271_GATE_DIGITAL,
 };
 
+struct tda18271_config {
+	struct tda18271_std_map *std_map;
+	enum tda18271_i2c_gate gate;
+};
+
 #if defined(CONFIG_DVB_TDA18271) || (defined(CONFIG_DVB_TDA18271_MODULE) && defined(MODULE))
 extern struct dvb_frontend *tda18271_attach(struct dvb_frontend *fe, u8 addr,
 					    struct i2c_adapter *i2c,
-					    enum tda18271_i2c_gate gate);
+					    struct tda18271_config *cfg);
 #else
 static inline struct dvb_frontend *tda18271_attach(struct dvb_frontend *fe,
 						   u8 addr,
 						   struct i2c_adapter *i2c,
-						   enum tda18271_i2c_gate gate)
+						   struct tda18271_config *cfg)
 {
 	printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __FUNCTION__);
 	return NULL;