summaryrefslogtreecommitdiffstats
path: root/drivers/media/dvb-frontends/bsbe1.h
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/media/dvb-frontends/bsbe1.h')
-rw-r--r--drivers/media/dvb-frontends/bsbe1.h106
1 files changed, 106 insertions, 0 deletions
diff --git a/drivers/media/dvb-frontends/bsbe1.h b/drivers/media/dvb-frontends/bsbe1.h
new file mode 100644
index 0000000..53e4d0d
--- /dev/null
+++ b/drivers/media/dvb-frontends/bsbe1.h
@@ -0,0 +1,106 @@
+/*
+ * bsbe1.h - ALPS BSBE1 tuner support
+ *
+ * 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 BSBE1_H
+#define BSBE1_H
+
+static u8 alps_bsbe1_inittab[] = {
+ 0x01, 0x15, /* XTAL = 4MHz, VCO = 352 MHz */
+ 0x02, 0x30, /* MCLK = 88 MHz */
+ 0x03, 0x00, /* ACR output 0 */
+ 0x04, 0x7d, /* F22FR = 0x7d, F22 = f_VCO / 128 / 0x7d = 22 kHz */
+ 0x05, 0x05, /* I2CT = 0, SCLT = 1, SDAT = 1 */
+ 0x06, 0x00, /* DAC output 0 */
+ 0x08, 0x40, /* DiSEqC off, LNB power on OP2/LOCK pin on */
+ 0x09, 0x00, /* FIFO */
+ 0x0c, 0x51, /* OP1/OP0 normal, val = 1 (LNB power on) */
+ 0x0d, 0x82, /* DC offset compensation = on, beta_agc1 = 2 */
+ 0x0f, 0x92, /* AGC1R */
+ 0x10, 0x34, /* AGC2O */
+ 0x11, 0x84, /* TLSR */
+ 0x12, 0xb9, /* CFD */
+ 0x15, 0xc9, /* lock detector threshold */
+ 0x28, 0x00, /* out imp: normal, type: parallel, FEC mode: QPSK */
+ 0x33, 0xfc, /* RS control */
+ 0x34, 0x93, /* count viterbi bit errors per 2E18 bytes */
+ 0xff, 0xff
+};
+
+
+static int alps_bsbe1_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_bsbe1_tuner_set_params(struct dvb_frontend *fe)
+{
+ struct dtv_frontend_properties *p = &fe->dtv_property_cache;
+ int ret;
+ u8 data[4];
+ u32 div;
+ struct i2c_msg msg = { .addr = 0x61, .flags = 0, .buf = data, .len = sizeof(data) };
+ struct i2c_adapter *i2c = fe->tuner_priv;
+
+ if ((p->frequency < 950000) || (p->frequency > 2150000))
+ return -EINVAL;
+
+ div = p->frequency / 1000;
+ data[0] = (div >> 8) & 0x7f;
+ data[1] = div & 0xff;
+ data[2] = 0x80 | ((div & 0x18000) >> 10) | 0x1;
+ data[3] = 0xe0;
+
+ if (fe->ops.i2c_gate_ctrl)
+ fe->ops.i2c_gate_ctrl(fe, 1);
+ ret = i2c_transfer(i2c, &msg, 1);
+ return (ret != 1) ? -EIO : 0;
+}
+
+static struct stv0299_config alps_bsbe1_config = {
+ .demod_address = 0x68,
+ .inittab = alps_bsbe1_inittab,
+ .mclk = 88000000UL,
+ .invert = 1,
+ .skip_reinit = 0,
+ .min_delay_ms = 100,
+ .set_symbol_rate = alps_bsbe1_set_symbol_rate,
+};
+
+#endif
OpenPOWER on IntegriCloud