summaryrefslogtreecommitdiffstats
path: root/drivers/media/dvb-frontends/tdhd1.h
diff options
context:
space:
mode:
authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 18:49:45 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 18:49:45 +0000
commit2c3c1048746a4622d8c89a29670120dc8fab93c4 (patch)
tree848558de17fb3008cdf4d861b01ac7781903ce39 /drivers/media/dvb-frontends/tdhd1.h
parentInitial commit. (diff)
downloadlinux-2c3c1048746a4622d8c89a29670120dc8fab93c4.tar.xz
linux-2c3c1048746a4622d8c89a29670120dc8fab93c4.zip
Adding upstream version 6.1.76.upstream/6.1.76
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r--drivers/media/dvb-frontends/tdhd1.h58
1 files changed, 58 insertions, 0 deletions
diff --git a/drivers/media/dvb-frontends/tdhd1.h b/drivers/media/dvb-frontends/tdhd1.h
new file mode 100644
index 000000000..55973a5fc
--- /dev/null
+++ b/drivers/media/dvb-frontends/tdhd1.h
@@ -0,0 +1,58 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * tdhd1.h - ALPS TDHD1-204A tuner support
+ *
+ * Copyright (C) 2008 Oliver Endriss <o.endriss@gmx.de>
+ *
+ * The project's page is at https://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 */