From 2c3c1048746a4622d8c89a29670120dc8fab93c4 Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel.baumann@progress-linux.org>
Date: Sun, 7 Apr 2024 20:49:45 +0200
Subject: Adding upstream version 6.1.76.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
---
 drivers/media/dvb-frontends/bsru6.h | 126 ++++++++++++++++++++++++++++++++++++
 1 file changed, 126 insertions(+)
 create mode 100644 drivers/media/dvb-frontends/bsru6.h

(limited to 'drivers/media/dvb-frontends/bsru6.h')

diff --git a/drivers/media/dvb-frontends/bsru6.h b/drivers/media/dvb-frontends/bsru6.h
new file mode 100644
index 000000000..a5ea22ff4
--- /dev/null
+++ b/drivers/media/dvb-frontends/bsru6.h
@@ -0,0 +1,126 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * bsru6.h - ALPS BSRU6 tuner support (moved from budget-ci.c)
+ *
+ * the project's page is at https://linuxtv.org
+ */
+
+#ifndef BSRU6_H
+#define BSRU6_H
+
+static u8 alps_bsru6_inittab[] = {
+	0x01, 0x15,
+	0x02, 0x30,
+	0x03, 0x00,
+	0x04, 0x7d,   /* F22FR = 0x7d, F22 = f_VCO / 128 / 0x7d = 22 kHz */
+	0x05, 0x35,   /* I2CT = 0, SCLT = 1, SDAT = 1 */
+	0x06, 0x40,   /* DAC not used, set to high impendance mode */
+	0x07, 0x00,   /* DAC LSB */
+	0x08, 0x40,   /* DiSEqC off, LNB power on OP2/LOCK pin on */
+	0x09, 0x00,   /* FIFO */
+	0x0c, 0x51,   /* OP1 ctl = Normal, OP1 val = 1 (LNB Power ON) */
+	0x0d, 0x82,   /* DC offset compensation = ON, beta_agc1 = 2 */
+	0x0e, 0x23,   /* alpha_tmg = 2, beta_tmg = 3 */
+	0x10, 0x3f,   // AGC2  0x3d
+	0x11, 0x84,
+	0x12, 0xb9,
+	0x15, 0xc9,   // lock detector threshold
+	0x16, 0x00,
+	0x17, 0x00,
+	0x18, 0x00,
+	0x19, 0x00,
+	0x1a, 0x00,
+	0x1f, 0x50,
+	0x20, 0x00,
+	0x21, 0x00,
+	0x22, 0x00,
+	0x23, 0x00,
+	0x28, 0x00,  // out imp: normal  out type: parallel FEC mode:0
+	0x29, 0x1e,  // 1/2 threshold
+	0x2a, 0x14,  // 2/3 threshold
+	0x2b, 0x0f,  // 3/4 threshold
+	0x2c, 0x09,  // 5/6 threshold
+	0x2d, 0x05,  // 7/8 threshold
+	0x2e, 0x01,
+	0x31, 0x1f,  // test all FECs
+	0x32, 0x19,  // viterbi and synchro search
+	0x33, 0xfc,  // rs control
+	0x34, 0x93,  // error control
+	0x0f, 0x52,
+	0xff, 0xff
+};
+
+static int alps_bsru6_set_symbol_rate(struct dvb_frontend *fe, u32 srate, u32 ratio)
+{
+	u8 aclk = 0;
+	u8 bclk = 0;
+
+	if (srate < 1500000) {
+		aclk = 0xb7;
+		bclk = 0x47;
+	} else if (srate < 3000000) {
+		aclk = 0xb7;
+		bclk = 0x4b;
+	} else if (srate < 7000000) {
+		aclk = 0xb7;
+		bclk = 0x4f;
+	} else if (srate < 14000000) {
+		aclk = 0xb7;
+		bclk = 0x53;
+	} else if (srate < 30000000) {
+		aclk = 0xb6;
+		bclk = 0x53;
+	} else if (srate < 45000000) {
+		aclk = 0xb4;
+		bclk = 0x51;
+	}
+
+	stv0299_writereg(fe, 0x13, aclk);
+	stv0299_writereg(fe, 0x14, bclk);
+	stv0299_writereg(fe, 0x1f, (ratio >> 16) & 0xff);
+	stv0299_writereg(fe, 0x20, (ratio >> 8) & 0xff);
+	stv0299_writereg(fe, 0x21, ratio & 0xf0);
+
+	return 0;
+}
+
+static int alps_bsru6_tuner_set_params(struct dvb_frontend *fe)
+{
+	struct dtv_frontend_properties *p = &fe->dtv_property_cache;
+	u8 buf[4];
+	u32 div;
+	struct i2c_msg msg = { .addr = 0x61, .flags = 0, .buf = buf, .len = sizeof(buf) };
+	struct i2c_adapter *i2c = fe->tuner_priv;
+
+	if ((p->frequency < 950000) || (p->frequency > 2150000))
+		return -EINVAL;
+
+	div = (p->frequency + (125 - 1)) / 125;	/* round correctly */
+	buf[0] = (div >> 8) & 0x7f;
+	buf[1] = div & 0xff;
+	buf[2] = 0x80 | ((div & 0x18000) >> 10) | 4;
+	buf[3] = 0xC4;
+
+	if (p->frequency > 1530000)
+		buf[3] = 0xc0;
+
+	if (fe->ops.i2c_gate_ctrl)
+		fe->ops.i2c_gate_ctrl(fe, 1);
+	if (i2c_transfer(i2c, &msg, 1) != 1)
+		return -EIO;
+	return 0;
+}
+
+static struct stv0299_config alps_bsru6_config = {
+	.demod_address = 0x68,
+	.inittab = alps_bsru6_inittab,
+	.mclk = 88000000UL,
+	.invert = 1,
+	.skip_reinit = 0,
+	.lock_output = STV0299_LOCKOUTPUT_1,
+	.volt13_op0_op1 = STV0299_VOLT13_OP1,
+	.min_delay_ms = 100,
+	.set_symbol_rate = alps_bsru6_set_symbol_rate,
+};
+
+#endif
-- 
cgit v1.2.3