| lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
|
Open Source and information security mailing list archives
| ||
|
Message-Id: <21dad260e220e308a0a167cd429b249d2f814a75.1455528251.git.knightrider@are.ma>
Date: Mon, 15 Feb 2016 18:27:35 +0900
From: info@....ma
To: linux-media@...r.kernel.org
Cc: Буди Романто, AreMa Inc <knightrider@....ma>,
linux-kernel@...r.kernel.org, crope@....fi, m.chehab@...sung.com,
mchehab@....samsung.com, hdegoede@...hat.com,
laurent.pinchart@...asonboard.com, mkrufky@...uxtv.org,
sylvester.nawrocki@...il.com, g.liakhovetski@....de,
peter.senna@...il.com
Subject: [media 5/7] MaxLinear MxL301RF ISDB-T tuner
From: Буди Романто, AreMa Inc <knightrider@....ma>
Signed-off-by: Буди Романто, AreMa Inc <knightrider@....ma>
---
drivers/media/tuners/mxl301rf.c | 251 ++++++++++++++++++++++++++++++++++++++++
drivers/media/tuners/mxl301rf.h | 23 ++++
2 files changed, 274 insertions(+)
create mode 100644 drivers/media/tuners/mxl301rf.c
create mode 100644 drivers/media/tuners/mxl301rf.h
diff --git a/drivers/media/tuners/mxl301rf.c b/drivers/media/tuners/mxl301rf.c
new file mode 100644
index 0000000..2f1f1eb
--- /dev/null
+++ b/drivers/media/tuners/mxl301rf.c
@@ -0,0 +1,251 @@
+/*
+ * Sharp VA4M6JC2103 - Earthsoft PT3 ISDB-T tuner MaxLinear CMOS Hybrid TV MxL301RF
+ *
+ * Copyright (C) Budi Rachmanto, AreMa Inc. <info@....ma>
+ *
+ * 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.
+ */
+
+#include "dvb_frontend.h"
+#include "mxl301rf.h"
+
+struct mxl301rf {
+ struct i2c_adapter *i2c;
+ u8 adr_tuner;
+};
+
+int mxl301rf_w(struct dvb_frontend *fe, u8 slvadr, const u8 *dat, int len)
+{
+ u8 buf[len + 1];
+ struct mxl301rf *t = fe->tuner_priv;
+ struct i2c_msg msg[] = {
+ {.addr = fe->id, .flags = 0, .buf = buf, .len = len + 1,},
+ };
+
+ buf[0] = slvadr;
+ memcpy(buf + 1, dat, len);
+ return i2c_transfer(t->i2c, msg, 1) == 1 ? 0 : -EIO;
+}
+
+int mxl301rf_w_tuner(struct dvb_frontend *fe, const u8 *dat, int len)
+{
+ u8 buf[len + 1];
+
+ buf[0] = ((struct mxl301rf *)fe->tuner_priv)->adr_tuner << 1;
+ memcpy(buf + 1, dat, len);
+ return mxl301rf_w(fe, 0xFE, buf, len + 1);
+}
+
+void mxl301rf_r(struct dvb_frontend *fe, u8 regadr, u8 *dat)
+{
+ struct mxl301rf *t = fe->tuner_priv;
+ u8 wbuf[] = {0xFB, regadr},
+ rbuf[] = {0xFE, (t->adr_tuner << 1) | 1, 0};
+ struct i2c_msg msg[] = {
+ {.addr = fe->id, .flags = 0, .buf = rbuf, .len = 2,},
+ {.addr = fe->id, .flags = I2C_M_RD, .buf = rbuf + 2, .len = 1,},
+ };
+ mxl301rf_w_tuner(fe, wbuf, sizeof(wbuf));
+ *dat = t->adr_tuner && (i2c_transfer(t->i2c, msg, 2) == 2) ? rbuf[2] : 0;
+}
+
+enum mxl301rf_agc {
+ MXL301RF_AGC_AUTO,
+ MXL301RF_AGC_MANUAL,
+};
+
+int mxl301rf_set_agc(struct dvb_frontend *fe, enum mxl301rf_agc agc)
+{
+ u8 dat = agc == MXL301RF_AGC_AUTO ? 0x40 : 0x00,
+ imsrst = 0x01 << 6;
+ int err = mxl301rf_w(fe, 0x25, &dat, 1);
+
+ dat = 0x4c | (agc == MXL301RF_AGC_AUTO ? 0 : 1);
+ return err ||
+ mxl301rf_w(fe, 0x23, &dat, 1) ||
+ mxl301rf_w(fe, 0x01, &imsrst, 1);
+}
+
+int mxl301rf_sleep(struct dvb_frontend *fe)
+{
+ u8 buf = (1 << 7) | (1 << 4),
+ dat[] = {0x01, 0x00, 0x13, 0x00};
+ int err = mxl301rf_set_agc(fe, MXL301RF_AGC_MANUAL);
+
+ if (err)
+ return err;
+ mxl301rf_w_tuner(fe, dat, sizeof(dat));
+ return mxl301rf_w(fe, 0x03, &buf, 1);
+}
+
+int mxl301rf_tune(struct dvb_frontend *fe)
+{
+ struct shf_dvbt {
+ u32 freq, /* Channel center frequency @ kHz */
+ freq_th; /* Offset frequency threshold @ kHz */
+ u8 shf_val, /* Spur shift value */
+ shf_dir; /* Spur shift direction */
+ } shf_dvbt_tab[] = {
+ { 64500, 500, 0x92, 0x07},
+ {191500, 300, 0xe2, 0x07},
+ {205500, 500, 0x2c, 0x04},
+ {212500, 500, 0x1e, 0x04},
+ {226500, 500, 0xd4, 0x07},
+ { 99143, 500, 0x9c, 0x07},
+ {173143, 500, 0xd4, 0x07},
+ {191143, 300, 0xd4, 0x07},
+ {207143, 500, 0xce, 0x07},
+ {225143, 500, 0xce, 0x07},
+ {243143, 500, 0xd4, 0x07},
+ {261143, 500, 0xd4, 0x07},
+ {291143, 500, 0xd4, 0x07},
+ {339143, 500, 0x2c, 0x04},
+ {117143, 500, 0x7a, 0x07},
+ {135143, 300, 0x7a, 0x07},
+ {153143, 500, 0x01, 0x07}
+ };
+ u8 rf_dat[] = {
+ 0x13, 0x00, /* abort tune */
+ 0x3b, 0xc0,
+ 0x3b, 0x80,
+ 0x10, 0x95, /* BW */
+ 0x1a, 0x05,
+ 0x61, 0x00,
+ 0x62, 0xa0,
+ 0x11, 0x40, /* 2 bytes to store RF */
+ 0x12, 0x0e, /* 2 bytes to store RF */
+ 0x13, 0x01 /* start tune */
+ };
+ const u8 idac[] = {
+ 0x0d, 0x00,
+ 0x0c, 0x67,
+ 0x6f, 0x89,
+ 0x70, 0x0c,
+ 0x6f, 0x8a,
+ 0x70, 0x0e,
+ 0x6f, 0x8b,
+ 0x70, 0x10+12,
+ };
+ u8 dat[20];
+ int err = mxl301rf_set_agc(fe, MXL301RF_AGC_MANUAL);
+ u32 freq = fe->dtv_property_cache.frequency,
+ kHz = 1000,
+ MHz = 1000000,
+ dig_rf = freq / MHz,
+ tmp = freq % MHz,
+ i,
+ fdiv = 1000000;
+ bool rfsynth_locked,
+ refsynth_locked;
+ unsigned long timeout;
+
+ if (err)
+ return err;
+ for (i = 0; i < 6; i++) {
+ dig_rf <<= 1;
+ fdiv /= 2;
+ if (tmp > fdiv) {
+ tmp -= fdiv;
+ dig_rf++;
+ }
+ }
+ if (tmp > 7812)
+ dig_rf++;
+ rf_dat[2 * 7 + 1] = (u8)(dig_rf);
+ rf_dat[2 * 8 + 1] = (u8)(dig_rf >> 8);
+ for (i = 0; i < ARRAY_SIZE(shf_dvbt_tab); i++) {
+ if ((freq >= (shf_dvbt_tab[i].freq - shf_dvbt_tab[i].freq_th) * kHz) &&
+ (freq <= (shf_dvbt_tab[i].freq + shf_dvbt_tab[i].freq_th) * kHz)) {
+ rf_dat[2 * 5 + 1] = shf_dvbt_tab[i].shf_val;
+ rf_dat[2 * 6 + 1] = 0xa0 | shf_dvbt_tab[i].shf_dir;
+ break;
+ }
+ }
+ memcpy(dat, rf_dat, sizeof(rf_dat));
+
+ mxl301rf_w_tuner(fe, dat, 14);
+ msleep_interruptible(1);
+ mxl301rf_w_tuner(fe, dat + 14, 6);
+ msleep_interruptible(1);
+ dat[0] = 0x1a;
+ dat[1] = 0x0d;
+ mxl301rf_w_tuner(fe, dat, 2);
+ mxl301rf_w_tuner(fe, idac, sizeof(idac));
+ timeout = jiffies + msecs_to_jiffies(100);
+ while (time_before(jiffies, timeout)) {
+ mxl301rf_r(fe, 0x16, dat);
+ rfsynth_locked = (*dat & 0x0c) == 0x0c;
+ mxl301rf_r(fe, 0x16, dat);
+ refsynth_locked = (*dat & 0x03) == 0x03;
+ if (rfsynth_locked && refsynth_locked)
+ return mxl301rf_set_agc(fe, MXL301RF_AGC_AUTO);
+ msleep_interruptible(1);
+ }
+ return -ETIMEDOUT;
+}
+
+int mxl301rf_wakeup(struct dvb_frontend *fe)
+{
+ u8 buf = (1 << 7) | (0 << 4),
+ dat[2] = {0x01, 0x01};
+ int err = mxl301rf_w(fe, 0x03, &buf, 1);
+
+ if (err)
+ return err;
+ mxl301rf_w_tuner(fe, dat, sizeof(dat));
+ return 0;
+}
+
+static struct dvb_tuner_ops mxl301rf_ops = {
+ .set_params = mxl301rf_tune,
+ .sleep = mxl301rf_sleep,
+ .init = mxl301rf_wakeup,
+};
+
+int mxl301rf_remove(struct i2c_client *c)
+{
+ kfree(i2c_get_clientdata(c));
+ return 0;
+}
+
+int mxl301rf_probe(struct i2c_client *c, const struct i2c_device_id *id)
+{
+ struct dvb_frontend *fe = c->dev.platform_data;
+ struct mxl301rf *t = kzalloc(sizeof(struct mxl301rf), GFP_KERNEL);
+ u8 d[] = {0x10, 0x01};
+
+ if (!t)
+ return -ENOMEM;
+ t->i2c = c->adapter;
+ t->adr_tuner = c->addr;
+ fe->tuner_priv = t;
+ memcpy(&fe->ops.tuner_ops, &mxl301rf_ops, sizeof(struct dvb_tuner_ops));
+ i2c_set_clientdata(c, t);
+ return mxl301rf_w(fe, 0x1c, d, 1) ||
+ mxl301rf_w(fe, 0x1d, d+1, 1);
+}
+
+static struct i2c_device_id mxl301rf_id[] = {
+ {MXL301RF_MODNAME, 0},
+ {},
+};
+MODULE_DEVICE_TABLE(i2c, mxl301rf_id);
+
+static struct i2c_driver mxl301rf_driver = {
+ .driver = {
+ .owner = THIS_MODULE,
+ .name = mxl301rf_id->name,
+ },
+ .probe = mxl301rf_probe,
+ .remove = mxl301rf_remove,
+ .id_table = mxl301rf_id,
+};
+module_i2c_driver(mxl301rf_driver);
+
+MODULE_AUTHOR("Budi Rachmanto, AreMa Inc. <knightrider(@)are.ma>");
+MODULE_DESCRIPTION("Earthsoft PT3 MxL301RF MaxLinear CMOS Hybrid TV ISDB-T tuner driver");
+MODULE_LICENSE("GPL");
+
diff --git a/drivers/media/tuners/mxl301rf.h b/drivers/media/tuners/mxl301rf.h
new file mode 100644
index 0000000..32a31b0
--- /dev/null
+++ b/drivers/media/tuners/mxl301rf.h
@@ -0,0 +1,23 @@
+/*
+ * Sharp VA4M6JC2103 - Earthsoft PT3 ISDB-T tuner MaxLinear CMOS Hybrid TV MxL301RF
+ *
+ * Copyright (C) 2014 Budi Rachmanto, AreMa Inc. <info@....ma>
+ *
+ * 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.
+ */
+
+#ifndef MXL301RF_H
+#define MXL301RF_H
+
+#define MXL301RF_MODNAME "mxl301rf"
+
+#endif
+
--
2.3.10
Powered by blists - more mailing lists