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[src/trunk]: src/sys/dev/i2c Add subroutines to support Microtune MT2131 sili...
details: https://anonhg.NetBSD.org/src/rev/aae97e37ee11
branches: trunk
changeset: 767942:aae97e37ee11
user: jakllsch <jakllsch%NetBSD.org@localhost>
date: Thu Aug 04 01:45:37 2011 +0000
description:
Add subroutines to support Microtune MT2131 silicon tuner.
diffstat:
sys/dev/i2c/files.i2c | 6 +-
sys/dev/i2c/mt2131.c | 266 ++++++++++++++++++++++++++++++++++++++++++++++++
sys/dev/i2c/mt2131var.h | 15 ++
3 files changed, 286 insertions(+), 1 deletions(-)
diffs (truncated from 309 to 300 lines):
diff -r 258a6a160ad4 -r aae97e37ee11 sys/dev/i2c/files.i2c
--- a/sys/dev/i2c/files.i2c Thu Aug 04 00:57:33 2011 +0000
+++ b/sys/dev/i2c/files.i2c Thu Aug 04 01:45:37 2011 +0000
@@ -1,4 +1,4 @@
-# $NetBSD: files.i2c,v 1.38 2011/07/14 23:43:37 jmcneill Exp $
+# $NetBSD: files.i2c,v 1.39 2011/08/04 01:45:37 jakllsch Exp $
defflag opt_i2cbus.h I2C_SCAN
define i2cbus { }
@@ -38,6 +38,10 @@
define nxt2k: i2cexec, firmload
file dev/i2c/nxt2k.c nxt2k
+# Microtune MT2131 silicon tuner
+define mt2131: i2cexec
+file dev/i2c/mt2131.c mt2131
+
#
# I2C master devices
#
diff -r 258a6a160ad4 -r aae97e37ee11 sys/dev/i2c/mt2131.c
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/sys/dev/i2c/mt2131.c Thu Aug 04 01:45:37 2011 +0000
@@ -0,0 +1,266 @@
+/* $NetBSD: mt2131.c,v 1.1 2011/08/04 01:45:37 jakllsch Exp $ */
+
+/*
+ * Copyright (c) 2008, 2011 Jonathan A. Kollasch
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+ * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+ * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+ * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+ * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <sys/cdefs.h>
+__KERNEL_RCSID(0, "$NetBSD: mt2131.c,v 1.1 2011/08/04 01:45:37 jakllsch Exp $");
+
+#include <sys/param.h>
+#include <sys/systm.h>
+#include <sys/device.h>
+#include <sys/kmem.h>
+#include <sys/syslog.h>
+#include <sys/proc.h>
+
+#include <dev/i2c/mt2131var.h>
+
+#define PWR 0x07
+#define UPC_1 0x0b
+#define AGC_RL 0x10
+#define MISC_2 0x15
+
+#define IF1 1220
+#define IF2 44000
+#define REF 16000
+
+static const uint8_t mt2131_initstring[] = {
+ 0x01,
+ 0x50, 0x00, 0x50, 0x80, 0x00, 0x49,
+ 0xfa, 0x88, 0x08, 0x77, 0x41, 0x04, 0x00, 0x00, 0x00, 0x32,
+ 0x7f, 0xda, 0x4c, 0x00, 0x10, 0xaa, 0x78, 0x80, 0xff, 0x68,
+ 0xa0, 0xff, 0xdd, 0x00, 0x00
+};
+
+static const uint8_t mt2131_agcinitstring[] = {
+ AGC_RL,
+ 0x7f, 0xc8, 0x0a, 0x5f, 0x00, 0x04
+};
+
+
+struct mt2131_softc {
+ device_t parent;
+ i2c_tag_t tag;
+ i2c_addr_t addr;
+ uint32_t frequency;
+ uint32_t bandwidth;
+};
+
+static int mt2131_init(struct mt2131_softc *);
+
+static int mt2131_read(struct mt2131_softc *, uint8_t, uint8_t *);
+static int mt2131_write(struct mt2131_softc *, uint8_t, uint8_t);
+
+struct mt2131_softc *
+mt2131_open(device_t parent, i2c_tag_t t, i2c_addr_t a)
+{
+ struct mt2131_softc *sc;
+ int ret;
+
+ uint8_t cmd, reg;
+
+ cmd = reg = 0;
+
+ printf("%s\n", __func__);
+
+ /* get id reg */
+ iic_acquire_bus(t, I2C_F_POLL);
+ ret = iic_exec(t, I2C_OP_READ_WITH_STOP, a, &cmd, 1, ®, 1, I2C_F_POLL);
+ iic_release_bus(t, I2C_F_POLL);
+
+ if (ret) {
+ printf("%s read fail\n", __func__);
+ return NULL;
+ }
+
+ printf("%s %02x\n", __func__, reg);
+
+ if ((reg & 0xfe) != 0x3e)
+ return NULL;
+
+ sc = kmem_alloc(sizeof(*sc), KM_SLEEP);
+ if (sc == NULL)
+ return NULL;
+
+ sc->parent = parent;
+ sc->tag = t;
+ sc->addr = a;
+
+ mt2131_init(sc);
+
+ return sc;
+}
+
+void
+mt2131_close(struct mt2131_softc *sc)
+{
+ kmem_free(sc, sizeof(*sc));
+}
+
+int
+mt2131_tune_dtv(struct mt2131_softc *sc, const struct dvb_frontend_parameters *p)
+{
+ int rv;
+ uint64_t o1, o2;
+ uint64_t d1, d2;
+ uint32_t r1, r2;
+ uint32_t fr;
+ uint8_t b[7];
+ uint8_t regval;
+
+ mt2131_init(sc);
+
+ b[0] = 0x01;
+
+ if(p->frequency != 0 &&
+ (p->frequency < 50000000 || p->frequency > 1000000000))
+ return EINVAL;
+
+ fr = p->frequency / 1000;
+
+ o1 = fr + IF1 * 1000;
+ o2 = o1 - fr - IF2;
+
+ d1 = (o1 * 8192)/REF;
+ d2 = (o2 * 8192)/REF;
+
+ r1 = d1/8192;
+ r2 = d2/8192;
+
+ printf("mt2131 %lu %lu %lu %u\n", o1, d1, d1&0x1fff, r1);
+ printf("mt2131 %lu %lu %lu %u\n", o2, d2, d2&0x1fff, r2);
+
+ b[1] = (d1 & 0x1fe0) >> 5;
+ b[2] = (d1 & 0x001f);
+ b[3] = r1;
+ b[4] = (d2 & 0x1fe0) >> 5;
+ b[5] = (d2 & 0x001f);
+ b[6] = r2;
+
+ iic_acquire_bus(sc->tag, I2C_F_POLL);
+ rv = iic_exec(sc->tag, I2C_OP_WRITE_WITH_STOP, sc->addr, b, 7, NULL, 0, I2C_F_POLL);
+ iic_release_bus(sc->tag, I2C_F_POLL);
+
+ regval = (fr - 27501) / 55000;
+
+ if(regval > 0x13)
+ regval = 0x13;
+
+ printf("mt2131 %u\n", regval);
+
+ rv = mt2131_write(sc, UPC_1, regval);
+
+ if (rv != 0)
+ printf("%s\n", __func__);
+
+ sc->frequency = (o1 - o2 - IF2) * 1000;
+ printf("%s freq %d\n", __func__, sc->frequency);
+
+ int i;
+ b[0] = 0x08;
+
+ for ( i = 0; i < 100; i++) {
+ rv = mt2131_read(sc, 0x08, ®val);
+
+ if (( regval & 0x88 ) == 0x88 ) {
+ printf("mt2131 - locked\n");
+ break;
+ } else {
+ printf("mt2131 - not locked - %02x\n", b[1]);
+ }
+ kpause("mt2131", true, 1, NULL);
+ }
+
+ return rv;
+}
+
+static int
+mt2131_init(struct mt2131_softc *sc)
+{
+ int ret;
+
+ printf("%s\n", __func__);
+
+ ret = iic_acquire_bus(sc->tag, I2C_F_POLL);
+ if (ret)
+ return -1;
+ ret = iic_exec(sc->tag, I2C_OP_WRITE_WITH_STOP, sc->addr,
+ mt2131_initstring, sizeof(mt2131_initstring), NULL, 0, I2C_F_POLL);
+ if (ret)
+ return -1;
+ iic_release_bus(sc->tag, I2C_F_POLL);
+
+ ret = mt2131_write(sc, UPC_1, 0x09);
+ ret = mt2131_write(sc, MISC_2, 0x47);
+ ret = mt2131_write(sc, PWR, 0xf2);
+ ret = mt2131_write(sc, UPC_1, 0x01);
+
+ ret = iic_acquire_bus(sc->tag, I2C_F_POLL);
+ if (ret)
+ return -1;
+ ret = iic_exec(sc->tag, I2C_OP_WRITE_WITH_STOP, sc->addr,
+ mt2131_agcinitstring, sizeof(mt2131_agcinitstring),
+ NULL, 0, I2C_F_POLL);
+ iic_release_bus(sc->tag, I2C_F_POLL);
+ if (ret)
+ return -1;
+
+ return 0;
+}
+
+static int
+mt2131_read(struct mt2131_softc *sc, uint8_t r, uint8_t *v)
+{
+ int ret;
+
+ ret = iic_acquire_bus(sc->tag, I2C_F_POLL);
+ if (ret)
+ return ret;
+ ret = iic_exec(sc->tag, I2C_OP_READ_WITH_STOP, sc->addr,
+ &r, 1, v, 1, I2C_F_POLL);
+
+ iic_release_bus(sc->tag, I2C_F_POLL);
+
+ return ret;
+}
+
+static int
+mt2131_write(struct mt2131_softc *sc, uint8_t a, uint8_t v)
+{
+ int ret;
+ uint8_t b[] = { a, v };
+
+ ret = iic_acquire_bus(sc->tag, I2C_F_POLL);
+ if (ret)
+ return ret;
+
+ ret = iic_exec(sc->tag, I2C_OP_READ_WITH_STOP, sc->addr,
+ b, sizeof(b), NULL, 0, I2C_F_POLL);
+
+ iic_release_bus(sc->tag, I2C_F_POLL);
+
+ return ret;
+}
diff -r 258a6a160ad4 -r aae97e37ee11 sys/dev/i2c/mt2131var.h
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/sys/dev/i2c/mt2131var.h Thu Aug 04 01:45:37 2011 +0000
@@ -0,0 +1,15 @@
+
+#ifndef _DEV_I2C_MT2131VAR_H_
+#define _DEV_I2C_MT2131VAR_H_
+
+#include <dev/i2c/i2cvar.h>
+#include <dev/dtv/dtvio.h>
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