1 files changed, 92 insertions, 0 deletions
diff --git a/src/af903x-tuner.c b/src/af903x-tuner.c
new file mode 100644
index 0000000..20b3a2a
--- /dev/null
+++ b/src/af903x-tuner.c
@@ -0,0 +1,92 @@
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/delay.h>
+#include <linux/dvb/frontend.h>
+
+#include "dvb_frontend.h"
+#include "af903x.h"
+
+#define IF2  36150       // IF2 frequency = 36.150 MHz
+#define FREF 16000       // Quartz oscillator 16 MHz
+
+static int tuner_set_params(struct dvb_frontend *fe, struct dvb_frontend_parameters *params)
+{
+	struct tuner_priv *priv=NULL;
+	DWORD dwError = Error_NO_ERROR;
+	DWORD freq = params->frequency ;// 1000; // Hz -> kHz
+	
+	priv->bandwidth = (fe->ops.info.type == FE_OFDM) ? params->u.ofdm.bandwidth : 0;
+
+       deb_data("%s - freq : %d , bandwidth : %dn",__FUNCTION__, freq,priv->bandwidth);
+	   
+	dwError =DL_Tuner_SetFreqBw(fe->dvb->num, freq,priv->bandwidth);
+	if (dwError) deb_data("tuner_set_params Fail !\n");
+	
+	return 0;
+}
+static int tuner_get_frequency(struct dvb_frontend *fe, u32 *frequency)
+{
+	struct tuner_priv *priv = fe->tuner_priv;
+	*frequency = priv->frequency;
+	return 0;
+}
+
+static int tuner_get_bandwidth(struct dvb_frontend *fe, u32 *bandwidth)
+{
+	struct tuner_priv *priv = fe->tuner_priv;
+	*bandwidth = priv->bandwidth;
+	return 0;
+}
+
+static int tuner_init(struct dvb_frontend *fe)
+{
+
+	return 0;
+}
+
+static int tuner_sleep(struct dvb_frontend *fe)
+{
+	return 0;
+}
+
+static int tuner_release(struct dvb_frontend *fe)
+{
+	kfree(fe->tuner_priv);
+	fe->tuner_priv = NULL;
+	return 0;
+}
+
+static const struct dvb_tuner_ops tuner_tuner_ops = {
+	.info = {
+		.name           = "dvb_usb_tuner",
+		.frequency_min  =  48000000,
+		.frequency_max  = 860000000,
+		.frequency_step =     50000,
+	},
+
+	.release       = tuner_release,
+
+	.init          = tuner_init,
+	.sleep         = tuner_sleep,
+
+	.set_params    = tuner_set_params,
+	.get_frequency = tuner_get_frequency,
+	.get_bandwidth = tuner_get_bandwidth
+};
+
+/* This functions tries to identify a MT2060 tuner by reading the PART/REV register. This is hasty. */
+struct dvb_frontend * tuner_attach(struct dvb_frontend *fe)
+{
+	struct tuner_priv *priv = NULL;
+
+	priv = kzalloc(sizeof(struct tuner_priv), GFP_KERNEL);
+	if (priv == NULL)
+		return NULL;
+
+	memcpy(&fe->ops.tuner_ops, &tuner_tuner_ops, sizeof(struct dvb_tuner_ops));
+
+	fe->tuner_priv = priv;
+	
+	return fe;
+}
+EXPORT_SYMBOL(tuner_attach);