1 files changed, 140 insertions, 0 deletions

diff --git a/drivers/media/dvb/frontends/bsru6.h b/drivers/media/dvb/frontends/bsru6.h
new file mode 100644
index 000000000000..2a5366ce79cc
--- /dev/null
+++ b/drivers/media/dvb/frontends/bsru6.h
@@ -0,0 +1,140 @@
+/*
+ * bsru6.h - ALPS BSRU6 tuner support (moved from budget-ci.c)
+ *
+ * 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 BSRU6_H
+#define BSRU6_H
+
+static u8 alps_bsru6_inittab[] = {
+        0x01, 0x15,
+        0x02, 0x00,
+        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_pll_set(struct dvb_frontend *fe, struct i2c_adapter *i2c, struct dvb_frontend_parameters *params)
+{
+        u8 buf[4];
+        u32 div;
+        struct i2c_msg msg = { .addr = 0x61, .flags = 0, .buf = buf, .len = sizeof(buf) };
+
+        if ((params->frequency < 950000) || (params->frequency > 2150000))
+                return -EINVAL;
+
+        div = (params->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 (params->frequency > 1530000)
+                buf[3] = 0xc0;
+
+        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 = STV0229_LOCKOUTPUT_1,
+        .volt13_op0_op1 = STV0299_VOLT13_OP1,
+        .min_delay_ms = 100,
+        .set_symbol_rate = alps_bsru6_set_symbol_rate,
+        .pll_set = alps_bsru6_pll_set,
+};
+
+#endif