2 * bsru6.h - ALPS BSRU6 tuner support (moved from budget-ci.c)
4 * This program is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU General Public License
6 * as published by the Free Software Foundation; either version 2
7 * of the License, or (at your option) any later version.
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
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18 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
19 * Or, point your browser to http://www.gnu.org/copyleft/gpl.html
22 * the project's page is at http://www.linuxtv.org
28 static u8 alps_bsru6_inittab[] = {
32 0x04, 0x7d, /* F22FR = 0x7d, F22 = f_VCO / 128 / 0x7d = 22 kHz */
33 0x05, 0x35, /* I2CT = 0, SCLT = 1, SDAT = 1 */
34 0x06, 0x40, /* DAC not used, set to high impendance mode */
35 0x07, 0x00, /* DAC LSB */
36 0x08, 0x40, /* DiSEqC off, LNB power on OP2/LOCK pin on */
37 0x09, 0x00, /* FIFO */
38 0x0c, 0x51, /* OP1 ctl = Normal, OP1 val = 1 (LNB Power ON) */
39 0x0d, 0x82, /* DC offset compensation = ON, beta_agc1 = 2 */
40 0x0e, 0x23, /* alpha_tmg = 2, beta_tmg = 3 */
41 0x10, 0x3f, // AGC2 0x3d
44 0x15, 0xc9, // lock detector threshold
55 0x28, 0x00, // out imp: normal out type: parallel FEC mode:0
56 0x29, 0x1e, // 1/2 threshold
57 0x2a, 0x14, // 2/3 threshold
58 0x2b, 0x0f, // 3/4 threshold
59 0x2c, 0x09, // 5/6 threshold
60 0x2d, 0x05, // 7/8 threshold
62 0x31, 0x1f, // test all FECs
63 0x32, 0x19, // viterbi and synchro search
64 0x33, 0xfc, // rs control
65 0x34, 0x93, // error control
70 static int alps_bsru6_set_symbol_rate(struct dvb_frontend *fe, u32 srate, u32 ratio)
75 if (srate < 1500000) {
78 } else if (srate < 3000000) {
81 } else if (srate < 7000000) {
84 } else if (srate < 14000000) {
87 } else if (srate < 30000000) {
90 } else if (srate < 45000000) {
95 stv0299_writereg(fe, 0x13, aclk);
96 stv0299_writereg(fe, 0x14, bclk);
97 stv0299_writereg(fe, 0x1f, (ratio >> 16) & 0xff);
98 stv0299_writereg(fe, 0x20, (ratio >> 8) & 0xff);
99 stv0299_writereg(fe, 0x21, ratio & 0xf0);
104 static int alps_bsru6_tuner_set_params(struct dvb_frontend *fe, struct dvb_frontend_parameters *params)
108 struct i2c_msg msg = { .addr = 0x61, .flags = 0, .buf = buf, .len = sizeof(buf) };
109 struct i2c_adapter *i2c = fe->tuner_priv;
111 if ((params->frequency < 950000) || (params->frequency > 2150000))
114 div = (params->frequency + (125 - 1)) / 125; // round correctly
115 buf[0] = (div >> 8) & 0x7f;
117 buf[2] = 0x80 | ((div & 0x18000) >> 10) | 4;
120 if (params->frequency > 1530000)
123 if (fe->ops.i2c_gate_ctrl)
124 fe->ops.i2c_gate_ctrl(fe, 1);
125 if (i2c_transfer(i2c, &msg, 1) != 1)
130 static struct stv0299_config alps_bsru6_config = {
131 .demod_address = 0x68,
132 .inittab = alps_bsru6_inittab,
136 .lock_output = STV0299_LOCKOUTPUT_1,
137 .volt13_op0_op1 = STV0299_VOLT13_OP1,
139 .set_symbol_rate = alps_bsru6_set_symbol_rate,