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Diffstat (limited to 'drivers/media/dvb-frontends/tdhd1.h')
-rw-r--r--drivers/media/dvb-frontends/tdhd1.h74
1 files changed, 74 insertions, 0 deletions
diff --git a/drivers/media/dvb-frontends/tdhd1.h b/drivers/media/dvb-frontends/tdhd1.h
new file mode 100644
index 000000000000..17750985db0c
--- /dev/null
+++ b/drivers/media/dvb-frontends/tdhd1.h
@@ -0,0 +1,74 @@
+/*
+ * tdhd1.h - ALPS TDHD1-204A tuner support
+ *
+ * Copyright (C) 2008 Oliver Endriss <o.endriss@gmx.de>
+ *
+ *
+ * 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ * Or, point your browser to http://www.gnu.org/copyleft/gpl.html
+ *
+ *
+ * The project's page is at http://www.linuxtv.org
+ */
+
+#ifndef TDHD1_H
+#define TDHD1_H
+
+#include "tda1004x.h"
+
+static int alps_tdhd1_204_request_firmware(struct dvb_frontend *fe, const struct firmware **fw, char *name);
+
+static struct tda1004x_config alps_tdhd1_204a_config = {
+ .demod_address = 0x8,
+ .invert = 1,
+ .invert_oclk = 0,
+ .xtal_freq = TDA10046_XTAL_4M,
+ .agc_config = TDA10046_AGC_DEFAULT,
+ .if_freq = TDA10046_FREQ_3617,
+ .request_firmware = alps_tdhd1_204_request_firmware
+};
+
+static int alps_tdhd1_204a_tuner_set_params(struct dvb_frontend *fe)
+{
+ struct dtv_frontend_properties *p = &fe->dtv_property_cache;
+ struct i2c_adapter *i2c = fe->tuner_priv;
+ u8 data[4];
+ struct i2c_msg msg = { .addr = 0x61, .flags = 0, .buf = data, .len = sizeof(data) };
+ u32 div;
+
+ div = (p->frequency + 36166666) / 166666;
+
+ data[0] = (div >> 8) & 0x7f;
+ data[1] = div & 0xff;
+ data[2] = 0x85;
+
+ if (p->frequency >= 174000000 && p->frequency <= 230000000)
+ data[3] = 0x02;
+ else if (p->frequency >= 470000000 && p->frequency <= 823000000)
+ data[3] = 0x0C;
+ else if (p->frequency > 823000000 && p->frequency <= 862000000)
+ data[3] = 0x8C;
+ else
+ return -EINVAL;
+
+ if (fe->ops.i2c_gate_ctrl)
+ fe->ops.i2c_gate_ctrl(fe, 1);
+ if (i2c_transfer(i2c, &msg, 1) != 1)
+ return -EIO;
+
+ return 0;
+}
+
+#endif /* TDHD1_H */